CN102070716A

CN102070716A - Interleukin-10 antibody

Info

Publication number: CN102070716A
Application number: CN2010100045822A
Authority: CN
Inventors: L·G·普雷斯塔
Original assignee: Schering Corp
Current assignee: Merck Sharp and Dohme Corp
Priority date: 2003-11-10
Filing date: 2004-11-09
Publication date: 2011-05-25

Abstract

The invention relates to an interleukin (IL)-10 antibody. Specifically, the method and the composition provided herein usually relate to an IL-10 specific antibody and uses thereof. More specifically, the invention relates to a composition of the humanized IL-10 specific antibody and a method using the antibody, for modulating biological activity of IL-10, particularly in immunopathogenesis of autoimmune disorder and pathogens mediating.

Description

Interleukin-10 antibodies

The application is to be the dividing an application of Chinese patent application 200480040148.2 " interleukin-10 antibodies " on November 9th, 2004 applying date.

The application requires in the U.S. Provisional Patent Application No.60/518 of submission on November 10th, 2003, and 999 interests fully are incorporated in this with it by reference.

Technical field

Relate generally to interleukin 10 of the present invention (IL-10) specific antibody and its purposes.More specifically, the present invention relates to humanized antibody, it is discerned human IL-10 and adjusts its activity, particularly in the autoimmunity imbalance.

Background technology

The interleukin 10 (IL-10) that is called as cytokine synthesis inhibitory factor(CSIF) or CSIF at first is the effective immunomodifier of hematopoietic cell, particularly immunocyte.Some cells, for example activated T h2 cell, B cell, keratinocyte, monocyte and scavenger cell produce IL-10.Referring to, for example, Moore etc., Anne.Rev.Immunol. 11: 165 (1993).IL-10 suppresses many cells, comprises the activation and the effector function of T cell, monocyte and scavenger cell.Especially, IL-10 suppresses cell, and for example the cytokine of Th1 cell, natural killer cell, monocyte and scavenger cell is synthetic, comprises synthesizing of IL-1, IFN-γ and TNF.Referring to, for example, Fiorentino etc., J.Exp.Med., 170: 2081-2095 (1989); Fiorentino etc., J.Immunol. 146: 3444 (1991); Hsu etc., Int.Immunol. 4: 563 (1992); Hsu etc., Int.Immunol. 4: 563 (1992); D ' Andrea etc., J.Exp.Med. 178: 1041 (1993); De Waal Malefyt etc., J.Exp.Med. 174: 915 (1991); Fiorentino etc., J.Immunol. 147: 3815 (1991).

Multiple pathogenic agent, particularly intracellular pathogen, causing that IL-10 produces slows down or fully stops to remove pathogenic agent effectively by immune response.Moore etc., Annu.Rev.Immunol. 11: 165 (1993).For example, in from the blood lymphocytes of suffering from HIV, leprosy or phthisical patient, when attacking with pathogenic agent, peripheral blood lymphocyte external generally be anergic or non-responsiveness.Yet the neutralizing effect of IL-10 shows that active effector replys in the middle of these, that is, the Th1 reactivity is present in these cells.Thereby, believe that IL-10 is effectively utilized by pathogenic agent and promote its infectivity state.

IL-10 is also relevant with autoimmunization in the body.Autoimmunization is caused by the development of autoantibody, autoreactive T cell or their some combination of target healthy tissues.An example of autoimmune disorder is systemic lupus erythematosus (SLE), a kind of chronic rheumatic disease, and the reticular tissue of whole body all becomes inflammatory therein.Autoantibody is attacked normal bodily tissue, seems that normal bodily tissue is outside the intrusion, causes distinctive inflammation.Though also not exclusively understand reason accurately, the researchist believes that it has both the factor of heredity and environment.Especially, the existence of super reactivity of B cell and various autoantibodies is features of SLE.Usually, the IgG autoantibody (IgG anti-dsDNA abs) with the double-stranded DNA reaction has raise in SLE patient.SLE patient between 60 to 70% produces IgG anti-dsDNA abs, and some of them have Toxicity of Kidney.SLE in the women than in the male sex occurred frequently ten times, the symptom that has from the fash of face to disabling property and potential life-threatening organ dysfunction.It can be in the outbreak of any age, but modal be in young grownup.

The a large amount of effect of IL-10 in the pathologic process relevant that studies have shown that with SLE.For example, although IL-10 generally can't help not to be subjected to suitable stimulated cells to produce, all produce high-caliber IL-10 naturally external from SLE patient's B cell and scavenger cell.Llorente etc., Arthritis Rheum. 40: 249-60 (1997).In several researchs, the researchist has proved the dependency between IL-10 serum level and the disease activity.In addition, show all with in vitro study in the body that blocking-up IL-10 produces the clinical manifestation that can alleviate SLE.Referring to, for example, Gonzalez-Amaro etc., J.Autoimmunity 11:395-402 (1998).

Up to now, by using the inhibitive ability of immunity treatment, for example, glucocorticosteroid and endoxan have been treated one of performance of SLE, lupus nephritis.Although be that effectively these treatments are nonspecific, and there is the significant toxicity that hinders long-term treatment.Thereby the specificity neutralizing antibody may be effective antagonist of IL-10, allows the inhibition effect of removing IL-10 and keeps the integrity of the rest part of immune response network.

Using antibody in vivo is the immunogenicity of antibody as the most important limitation of therapeutical agent.Most of monoclonal antibodies derive from rodent, reuse the immunoreactive generation that causes at therapeutic antibodies in the mankind.This immune response minimum can cause the loss that treatment is renderd a service, and conference causes the anaphylaxis of potential lethality.The immunogenic initial effort that reduces rodent animal antibody comprises the generation chimeric antibody, and wherein mouse variable region and human constant region merge.Liu etc., Proc.Natl.Acad.Sci.USA?84：3439(1987)。Yet, develop the intensive anti-antibody reaction that at human variable region with the mouse of the heterozygote of human variable region and mouse constant region injection, prompting keeps complete rodent Fv zone in this chimeric antibody still may produce unwanted immunogenicity in the patient.

What generally believe is that the complementary determining region of variable domains (CDR) ring comprises the binding site of antibody molecule.Therefore, attempt rodent CDR ring is transplanted to that (that is humanization) further minimizes the rodent sequence on people's class framework.Jones etc., Nature 321: 522 (1986); Verhoeyen etc., Science 239: 1534 (1988).Yet the exchange of CDR ring still can not as one man produce the antibody that has with initial antibody identical combination character.The variation that relates to the framework residue (FR) of CDR ring support in humanized antibody also is that preservation antigen is required in conjunction with affinity.Kabat etc., J.Immunol. 147: 1709 (1991).Although reported in many humanized antibody constructs and to have used CDR to transplant and the framework residue keeps, very difficult predict concrete sequence whether can produce have expectation in conjunction with character, be the antibody of biological property sometimes.Referring to, for example, Queen etc., Proc.Natl.Acad.Sci.USA 86: 10029 (1989), Gorman etc., Proc.Natl.Acad.Sci.USA 88: 4181 (1991), and Hodgson, Bio/Technology 9: 421 (1991).In addition, formerly researchs of great majority have used different human sequences to be used for light chain and the weight chain variable sequence of animal, make that the character of prediction of this research is insecure.Use the sequence of known antibodies, or more typically, had those antibody of known x-ray structure, the sequence of antibody NEW and KOL.Referring to, for example, Jones etc. see above; Verhoeyen etc. see above; With Gorman etc., see above.Only the humanization construct of minority has been reported definite sequence information.

The invention provides the human IL-10 of identification and adjust its activity, particularly the active Humanized monoclonal antibodies of lacking of proper care about autoimmunity.Humanized antibody should provide not relevant with current treatment toxicity and the treatment of nonspecific replaceability to select.

Summary of the invention

Provide a kind of humanization recombinant antibody molecule or its binding fragment at this in conjunction with IL-10, comprise: at least one antibody chain variable region or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:3 by the SEQ ID NO:2 of SEQ ID NO:1, the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one antibody heavy chain variable region or its binding fragment, comprise the polypeptide of at least one aminoacid sequence of group of the SEQ ID NO:8 of SEQ ID NO:7 with SEQ ID NO:6, CDR2 of being selected from CDR1 and CDR3; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically.Also provide antibody at this, wherein said light chain of antibody or its binding fragment comprise the polypeptide of the variable region with SEQ ID NO:4.In a specific embodiment, described light chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:5 and the polypeptide of constant region.In a specific embodiment, described heavy chain of antibody or its binding fragment comprise the polypeptide of the variable region with SEQ ID NO:9.In another specific embodiment, described heavy chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:10 and the polypeptide of constant region.

Further providing at this is a kind of chimeric recombinant antibody molecule or its binding fragment in conjunction with IL-10, comprise: at least one antibody chain variable region or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:3 by the SEQ ID NO:2 of SEQ ID NO:1, the CDR2 of CDR1 and CDR3 constitutes; With at least one antibody heavy chain variable region or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:8 by the SEQ ID NO:7 of SEQ IDNO:6, the CDR2 of CDR1 and CDR3 constitutes.

Also provide a kind of humanization recombinant antibody molecule or its binding fragment in conjunction with IL-10 at this, comprise: at least one light chain of antibody or its binding fragment comprise the polypeptide with the aminoacid sequence that is selected from the group that the SEQID NO:13 by the SEQ ID NO:12 of SEQ ID NO:11, the CDR2 of CDR1 and CDR3 constitutes; And framework region, the aminoacid sequence of wherein said framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one heavy chain of antibody or its binding fragment, comprise polypeptide with the aminoacid sequence that is selected from the group that the SEQ ID NO:17 by the SEQ ID NO:16 of SEQ IDNO:15, the CDR2 of CDR1 and CDR3 constitutes; And framework region, the aminoacid sequence of wherein said framework region all is the human immunoglobulin aminoacid sequence all or basically.In a specific embodiment, described light chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:14 and the polypeptide of constant region.In another specific embodiment, described heavy chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:18 and the polypeptide of constant region.

Further providing at this is a kind of chimeric recombinant antibody molecule or its binding fragment in conjunction with IL-10, comprise: at least one light chain of antibody or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQID NO:13 by the SEQ ID NO:12 of SEQ ID NO:11, the CDR2 of CDR1 and CDR3 constitutes; With at least one heavy chain of antibody or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:17 by the SEQ ID NO:16 of SEQ ID NO:15, the CDR2 of CDR1 and CDR3 constitutes.

In one embodiment, antibody described above further comprises CH, and wherein said CH comprises γ 1, γ 2, γ 3 or γ 4 human heavy chain constant regions or its variant.In one embodiment, above-mentioned antibody further comprises constant region of light chain, and wherein said constant region of light chain comprises lambda or the human constant region of light chain of kappa.In some embodiments, the binding fragment of these antibody is to be selected from by Fab, Fab ', Fab '-SH, Fv, scFv, F (ab ') ₂And the antibody fragment of the group of double antibody (diabody) formation.

Further provide the immunoreactive method of inhibition in the human experimenter at this, comprise to its experimenter of needs and use antibody or its binding fragment that is specific to IL-10 with the amount of the biologic activity of effective blocking-up IL-10, wherein said antibody is antibody disclosed herein.The immune response of Yi Zhiing is reaction body fluid or cell by this method.In one embodiment, the experimenter of treatment suffers from systemic lupus erythematosus in this way.In another embodiment, described experimenter suffers from immunologic thrombocytopenic purpura (ITC).In another embodiment, described experimenter suffers from lupus nephritis.In further embodiment, described experimenter suffers from HIV.In another embodiment, described experimenter suffers from hepatitis C.In a specific embodiment, suppressing immunoreactive method in the human experimenter comprises to its experimenter of needs and uses the antibody that is specific to IL-10 or its binding fragment of amount that (1) effectively blocks the biologic activity of IL-10, wherein said antibody is antibody disclosed herein and (2) immunosuppression reagent.

Provide a kind of composition at this, comprise antibody or its binding fragment, with pharmaceutically acceptable carrier or thinner combination, wherein said antibody is one of above disclosed antibody.

Further provide the isolating nucleic acid of the polypeptide of the above disclosed antibody of coding.Also provide expression vector at this, comprise the isolated nucleic acid sequences that can be operatively connected with control sequence, described control sequence is by the host cell identification with described carrier transfection.Provide the host cell that comprises described carrier at this, described carrier comprises described isolated nucleic acid sequences.Further provide the method for producing polypeptide at this, be included in to cultivate under the condition of expressing described nucleotide sequence and comprise the host cell of described carrier, thereby produce described polypeptide, and reclaim described polypeptide from host cell.

Provide the isolated nucleic acid sequences that coding is specific to the antibody of IL-10 at this, comprise the light chain and heavy chain of nucleotide sequence with SEQ ID NO:19 with nucleotide sequence of SEQ ID NO:20.In further embodiment, described light chain is deposited in American type culture collection (ATCC) on April 20th, 2004, preserving number is PTA-5923, described heavy chain is deposited in American type culture collection (ATCC) on April 20th, 2004, has ATCC preserving number PTA-5922.

Provide the isolated nucleic acid sequences that coding is specific to the antibody of IL-10 at this, comprise the light chain and heavy chain of nucleotide sequence with SEQ ID NO:21 with nucleotide sequence of SEQ ID NO:22.In further embodiment, described light chain is deposited in American type culture collection (ATCC) on April 20th, 2004, has ATCC preserving number PTA-5927, described heavy chain is deposited in American type culture collection (ATCC) on April 20th, 2004, has ATCC preserving number PTA-5926.

Further provide the isolated nucleic acid sequences of the binding fragment of encoding antibody at this, described antibody is by above-mentioned nucleic acid sequence encoding.In one embodiment, described binding fragment is to be selected from by Fab, Fab ', Fab '-SH, Fv, scFv and F (ab ') ₂The antibody fragment of the group that constitutes.

Providing the receptor kind of identifying humanized antibody at this is the method for sequence, comprises step: a) identify the non-human antibody with desired biological activity; B) determine non-human antibody V _HAnd V _LThe aminoacid sequence of structural domain; And c) be that sequence compares with non-human antibody's sequence and lineup's class kind, the wherein said substep that relatively comprises: 1) give non-human V _HAnd V _LThe sequence distribution residue numbering of structural domain sequence; 2) describe CDR and FR zone in the sequence; 3) be that predetermined numerical score is distributed in each identical residue position of sequence at non-human with human the kind; With 4) to produce each human kind be total score value of sequence to all residue score values of summation; And d) mankind that will have the highest total residue score value to plant be that Sequence Identification is a sequence as the receptor kind.In one embodiment, described method further comprises substep: 5) at substep (4) afterwards, for the kind with identical total residue score value is a sequence, be each identical residue position distribute digital score value 1 of sequence with human the kind to the non-human of in substep (3), not scoring; 6) to produce each human kind be total score value of sequence to all residue score values of summation.In specific embodiment, described non-human antibody is specific to IL-10 and suppresses the biologic activity of IL-10.In specific embodiment, for V _HAnd V _LThe district is respectively as distributing to residue with numerical score in table 2 and 3.

Further provide the antibody that produces by aforesaid method at this.

Description of drawings

[0023) accompanying drawing 1A has shown the variable light chain with respect to anti-human IL-10 antibody 12G8, is sequence distribution residue numbering and numerical score to potential receptor kind.

Accompanying drawing 1B has shown the variable heavy chain with respect to anti-human IL-10 antibody 12G8, and giving potential receptor kind is sequence distribution residue numbering and numerical score.

Accompanying drawing 1C has shown the variable light chain with respect to anti-human IL-10 antibody 11D8, and giving potential receptor kind is sequence distribution residue numbering and numerical score.

Accompanying drawing 1D has shown the variable heavy chain with respect to anti-human IL-10 antibody 12D8, and giving potential receptor kind is sequence distribution residue numbering and numerical score.

Accompanying drawing 2A is as describing the concentration-time distribution curve of the 12G8 antibody that i.v. uses in the EXAMPLE III.Particularly, Fig. 2 A represents that the concentration time after the intravenously bullet of 0.03mg/kg-30mg/kg is used distributes.

Accompanying drawing 2B is as describing concentration-time distribution curve of the 12G8 that s.c. uses in the EXAMPLE III.Particularly, Fig. 2 B represents that the concentration time after the subcutaneous bullet of 0.03mg/kg-30mg/kg is used distributes.

Accompanying drawing 3A has shown and has used the anti-IL-10 antibody of humanization SCH708980, has given the resistance that Leishmania major is infected in the IL-10 transgenic mice.Infection is by determining with the swelling of kind of calliper palmula in the specified time.Use 12G8 antibody as what describe in the example VI.

Accompanying drawing 3B has shown and has used rat anti IL-10 antibody 12G8, has given the resistance that Leishmania major is infected in the IL-10 transgenic mice.Infection is by determining with the swelling of kind of calliper palmula in the specified time.Use 12G8 antibody as what describe in the example VI.

Embodiment

For disclosed clearness, rather than limit, detailed description of the invention is divided into following trifle.

A. definition

If not definition in addition, all technology of Shi Yonging and scientific terminology have a common identical meanings of understanding of those of ordinary skill of the technical field of the invention herein.By reference they are intactly merged at these all patents of quoting, application, disclosed application and other publications.If the definition of setting forth in this section is opposite or inconsistent with the definition that the patent that is incorporated in this by reference, application, disclosed application and other publications are set forth, the definition of setting forth in this section is better than being incorporated in by reference this definition.

As used herein, " a " or " an " means " at least one " or " one or more ".

As used herein, term " antibody " is meant any type of antibody or its fragment that shows desired biological activity.Thereby, on the most wide in range implication, use it, and contain monoclonal antibody (comprising full length monoclonal antibodies), polyclonal antibody, multi-specificity antibody (for example, bi-specific antibody) and antibody fragment especially, as long as they have represented desired biological activity.

As used herein, term " IL-10 binding fragment " or " its binding fragment " comprise that still having preserved it basically suppresses the fragment or the derivative of the antibody of the active biologic activity of IL-10.Therefore, term " antibody fragment " or IL-10 binding fragment are meant the part of full length antibody, normally its antigen binding domain or variable region.The example of antibody fragment comprises Fab, Fab ', F (ab ') ₂With the Fv fragment; Double antibody; Linear antibody; The single-chain antibody molecule, for example, sc-Fv; With the multi-specificity antibody that forms by antibody fragment.Typically, binding fragment or derivative have kept its IL-10 to suppress active at least 50%.Preferably, binding fragment or derivative have kept its IL-10 to suppress active at least 60%, 70%, 80%, 90%, 95%, 99% or 100%.Be contemplated that also the IL-10 binding fragment can comprise the bioactive conservative amino acid replacement that does not change it basically.

The term of Shi Yonging " monoclonal antibody " is meant the antibody that obtains from the antibody colony of homogeneity basically herein, that is, except may be with the possible abiogenous sudden change that exists on a small quantity, the single antibody of forming described colony be same.Monoclonal antibody is a high degree of specificity, at single antigenic epitopes.By contrast, Chang Gui (polyclonal) antibody preparation generally comprises the many antibody at (or being specific to) different epi-positions.Modifier " mono-clonal " has shown that antibody is the characteristic that the antibody colony from homogeneity basically obtains, and can not be counted as needs by any special method generation antibody.For example, monoclonal antibody used according to the invention can be by by Kohler etc., Nature, 256: 495 (1975) the hybridoma method preparations of at first describing, maybe can prepare by recombinant DNA method (referring to, for example, U.S. Patent No. 4,816,567)." monoclonal antibody " also can be utilized, for example, Clackson etc., Nature, 352: 624-628 (1991) and Marks etc., J.Mol.Biol. 222: the technology of describing among the 581-597 (1991) is separated from phage antibody library.

Comprise " chimeric " antibody (immunoglobulin (Ig)) especially in this monoclonal antibody, in " chimeric " antibody the part of heavy chain and/or light chain with derive from specific species or belong to the same or homology of corresponding sequence in the antibody of specific antibodies kind or subclass, and the rest part of this chain with derive from another species or belong to the same or homology of corresponding sequence in the antibody of another antibody type or subclass, the fragment that also comprises this antibody, as long as they demonstrate desired biological activity (U.S. Patent No. 4,816,567; With Morrison etc., Proc.Natl.Acad.Sci.USA, 81: 6851-6855 (1984)).

As used herein, term " strand Fv " or " scFv " antibody are meant the V that comprises antibody _HAnd V _LThe antibody fragment of structural domain, wherein these structural domains exist with single polypeptide chain.Usually, the Fv polypeptide further comprises V _HAnd V _LPeptide linker between the structural domain, it allows sFv to be formed for antigen bonded desired results.About the summary of sFv, referring to Pluckthun, THE PHARMACOLOGY OF MONOCLONALANTIBODIES, vol.113, Rosenburg and Moore eds., Springer-Verlag, New York, pp.269-315 (1994).

As used herein, term " double antibody " is meant the little antibody fragment with two antigen binding sites, and described fragment comprises in same polypeptide chain and is connected to variable region of light chain (V _L) variable region of heavy chain (V _H) (V _H-V _L).By using very short so that can not allowing paired joint between two structural domains on the same chain, structural domain is forced to the complementary structure territory pairing with another chain, and produces two antigen binding sites.Double antibody is at for example EP 404,097; WO 93/11161; With Hollinger etc., Proc.Natl.Acad.Sci.USA 90: 6444-6448 has more detailed description in (1993).

As used herein, term " humanized antibody " is meant the antibody formation that contains from the sequence of non-human (for example, mouse) antibody and human antibodies.This antibody is the chimeric antibody that contains the minmal sequence that derives from the non-human immunoglobulin (Ig).Usually, humanized antibody comprises basically all at least one, two variable domains typically, wherein, the FR district that all or all basically hypermutation rings are the human normal immunoglobulin sequences corresponding to hypermutation ring and all or all basically FR districts of non-human immunoglobulin.Humanized antibody randomly also will comprise at least a portion of constant region for immunoglobulin (Fc), the part of the constant region of human normal immunoglobulin typically.

As used herein, term " hypervariable region " is meant the responsible antigen bonded amino-acid residue of antibody.The hypervariable region comprises from the amino-acid residue of " complementary determining region " or " CDR " (promptly, residue 23-34 (L1) in the light chain variable structural domain, the residue 31-35 (HI) of 50-56 (L2) and 89-97 (L3) and weight chain variable structural domain, 50-65 (H2) and 95-102 (H3); Kabat etc., Sequences of Proteins of ImmunologicalInterest, 5th Ed.Public Health Service, National Institutes of Health, Bethesda, Md. (1991)), and/or (promptly from those residues of " hypermutation ring ", residue 26-32 (LI) in the light chain variable structural domain, the 26-32 (H1) in 50-52 (L2) and 91-96 (L3) and the weight chain variable structural domain, 53-55 (H2) and 96-101 (H3); Chothiaand Lesk, J.Mol.Biol. 196: 901-917 (1987)).As used herein, term " framework " or " FR " residue are meant those variable region residues except the hypervariable region residue that is defined herein as the CDR residue.

As used herein, term " conservative property replacement " is meant that amino acid well known by persons skilled in the art replaces, and can carry out under the situation of the biologic activity of the molecule that does not change generation usually.What those skilled in the art approved is, usually, the single amino acids of the non-critical areas of polypeptide replace do not change basically biologic activity (referring to, for example, Watson etc., Molecular Biology of the Gene, The Benjamin/Cummings Pub.Co., p.224 (4th Edition 1987)).This exemplary replacement is preferably carried out according to those of setting forth in the following table 1:

Table 1

Other replacements also are admissible, can empirical ground or next definite according to known conservative property replacement.

As used herein, term " isolated nucleic acid molecule " is meant to be identified and the nucleic acid molecule that separates from least one pollutent nucleic acid molecule, the common and pollutent nucleic acid molecule association at nucleic acid molecule described in the natural origin of antibody nucleic acid.Isolated nucleic acid molecule is different from its naturally occurring form or environment (setting).Therefore isolated nucleic acid molecule is different from the nucleic acid molecule that exists in n cell.Yet isolated nucleic acid molecule comprises the nucleic acid molecule in the cell that is comprised in common expressing antibodies, and in described cell, for example, described nucleic acid molecule is arranged in the chromosome position that is different from n cell.

Express " control sequence " and be meant the necessary dna sequence dna of encoding sequence that expression is operably connected in specific host living beings.For example, being suitable for procaryotic control sequence comprises promotor, randomly comprises and handle sequence and ribosome bind site.The known genuine karyocyte utilizes promotor, polyadenylation signal and enhanser.

When in the functional relationship that is placed in another nucleotide sequence, nucleic acid is " being operably connected ".For example, participate in polypeptide excretory proteinogen if be expressed as, the DNA of presequence (presequence) or secretion leader operationally is connected with the DNA of polypeptide; If influence transcribing of sequence, then promotor or enhanser operationally are connected with encoding sequence; If or with its placement so that the translation, ribosome bind site operationally is connected with encoding sequence.Usually, " being operably connected " meaning refers to that connected dna sequence dna is a successive, and for the secretion leader, is successive and is in read state.Yet enhanser needs not to be successive.Realize connecting by connecting at restriction site easily.If this site does not exist, use synthetic oligonucleotide adapter or joint according to conventional way.

As used herein, statement " cell ", " clone " and " cell culture " are used interchangeably, and all such appointments all comprise filial generation.Thereby word " transformant " and " transformant " comprise primary target cell and deutero-culture thus, do not consider the number of times that shifts.It will also be appreciated that because have a mind to or sudden change unintentionally, all filial generations may not be accurately identical aspect the DNA content.In being also included within according to muton generation with identical function or biologic activity of initial cell transformed screening.When the different appointment of hope, can come clear and definite from context.

As used herein, " polymerase chain reaction " or " PCR " is meant a kind of process or technology, wherein according to the specific fragment of the trace of the amplification of nucleic acid, RNA and/or the DNA that describe in the U.S. Patent No. 4,683,195 for example.Usually, need obtain the terminal of target area or the sequence information beyond it, thus can the design oligonucleotides primer; These primers are same or similar with the relative chain of the template that will increase on sequence.5 ' terminal nucleotide of two primers can overlap with the end of the material that increases.RNA sequence that PCR can be used for increasing specific, from specific dna sequence and the cDNA that transcribes from total cell RNA, phage or the plasmid sequence etc. of total genomic dna.Usually referring to Mullis etc., Cold SpringHarbor Symp.Quant.Biol.51:263 (1987); Erlich, ed., PCRTECHNOLOGY (Stockton Press, N.Y., 1989).As used herein, PCR is considered to one, but is not the example of only nucleic acid polymerase reaction method, is used for the amplification of nucleic acid specimen, comprises the specific fragment of using known nucleic acid to increase as primer and nucleic acid polymerase or producing nucleic acid.

As used herein, term " kind is a sequence " is meant the sequence of not resetting the immunoglobulin D NA sequence of (unrearranged).Can use any suitable source of not resetting immunoglobulin (Ig).

As used herein, term " immunosuppression reagent " is meant and suppresses or adjust immunoreactive natural or synthetic reagent.Described immune response is reaction body fluid or cell.

The B.IL-10 specific antibody

Composition disclosed herein and method relate to regulates the IL-10 activity, particularly in immune response.Especially, compositions herein and method are used the antibody that is specific to cytokine IL-10.IL-10 is powerful cytokine, and the growth, differentiation and the cytokine that relate to immunoreactive various cell types by regulation and control are synthesized and adjusted T cell and B cell response.Noticeable, usually the immunopathogenesis with autoimmune disorders and pathogen-inducible is relevant in the IL-10 generation.Therefore, adjustment and the inhibition active composition of IL-10 and method can change autoimmune disorder and related indication development and continue, with improvement or the relevant immunopathogenesis of reduction pathogenic agent.

The benefit of several uniquenesses is provided with humanization antibody target IL-10 activity.At first, the integrity that keeps immunoreactive rest part with antibody target IL-10 permission specific inhibition of IL-6-10 activity.Under the situation of the immunopathogenesis of many pathogen-inducibles, the active reduction of IL-10 or eliminate the effector immune response that will allow to expect and eliminate pathogenic agent and further pathology does not take place.For the autoimmunity patient, the active reduction of IL-10 or eliminate and will reduce or eliminate a disease and/or the symptom of disease and keep patient's immunological competence.The second, humanization IL-10 antibody has been walked around and immunogenicity rodent animal antibody relative restrictions.Use the human sequence to eliminate the immunogenicity of the exogenous antibody of using, use with allowing therapeutic.

Humanized antibody contains the sequence from non-human and human antibodies.Usually, humanized process has the expectation biologic activity from generation, that is, suppress the active non-human antibody of IL-10 and begin.In case identify non-human antibody, then adopt recombinant means to use non-human and human sequence to produce hybridization sequences with suitable characteristic.

The generation of C.IL-10 specific antibody

Can use any method that is fit to that is used to produce monoclonal antibody.For example, can be with IL-10 or its fragment immunity recipient.Can use any suitable immunization method.Such method can comprise adjuvant, other immunostimulant, repeats reinforced immunological and use one or more immunization routes.

Can use any suitable IL-10 source to be used to produce the non-human antibody of composition disclosed herein and method as immunogen.Such form includes, but are not limited to whole protein, peptide and epi-position, by reorganization known in the art, synthetic, the chemistry or the enzyme liberating means produce.IL-10 is the non-covalent homodimer of acid-sensitive sense, two infiltrations (interpenetrating) polypeptide chain.The length of this cytokine is 160 amino acid, has good conservative sequence, comprises the alpha-helix Pipe bundle structure that is similar to Interferon, rabbit and hematopoietic cytokine.IL-10 human and mouse has 73% amino acid identity, and human IL-10 is activated to mouse and people's cell.IL-10 is the commercially available known Protocols in Molecular Biology production of maybe can using.For the mankind, pigtail rhesus monkey, mangabey, rhesus monkey and owl monkey, mongoose lemur, mouse, rat, cavy, gold hamster, rabbit, cat, dog and other, the GenbankcDNA sequence all is obtainable.Recombinant human IL-10 does not have the glycosylated 17-18kDa polypeptide of N-.

Any type of antigen that is enough to produce the antibody of biologic activity can be used to produce antibody.Thereby causing antigen can be independent single epi-position, a plurality of epi-position or whole protein, or strengthens agent combination with one or more immunogenicities known in the art.Causing antigen can be isolating full length protein, cell surface protein (for example, coming immunity with antigenic at least a portion cells transfected), or soluble protein (for example, only partly coming immunity with proteinic extracellular domain).Antigen can be produced in the cell of modifying hereditarily.The described antigenic DNA that encodes can be genome or non-genomic group (for example, cDNA) and at least a portion in Codocyte outer structure territory.As used herein, term " part " is meant the amino acid or the nucleic acid of the minimum quantity of the immunogenicity epi-position of forming target antigen according to circumstances.Any Genetic carrier that is suitable for transforming target cell be can adopt, adenovirus carrier, plasmid and non-virus carrier included but not limited to, for example cation lipid.

The antibody that can use any suitable method to cause the biological property with expectation suppresses IL-10.What expect is from various mammalian hosts, for example preparation monoclonal antibodies (mAbs) such as mouse, rodent, primates, the mankind.Can, for example, Stites etc. (eds.) BASIC AND CLINICAL IMMUNOLOGY (4th ed.) LangeMedical Publications, Los Altos, CA and the reference of wherein quoting; Harlowand Lane (1988) ANTIBODIES:A LABORATORY MANUAL CSHPress; Goding (1986) MONOCLONAL ANTIBODIES:PRINCIPLESAND PRACTICE (2d ed.) Academic Press, New York finds the explanation of the technology of the such monoclonal antibody of preparation among the NY.Thereby, can obtain monoclonal antibody by the various technology that this area researchist knows.Usually, usually by merging the spleen cell immortalization of the animal that makes personal expectation antigen immune with the myeloma cell.Referring to Kohler and Milstein (1976) Eur.J.Immunol. 6: 511-519.The replaceability method of immortalization comprises with Epstein Barr Virus, oncogene or retrovirus conversion, or additive method known in the art.Referring to, for example, Doyle waits (eds.1994 and regular supplementary issue) CELLAND TISSUE CULTURE:LABORATORY PROCEDURES, John Wileyand Sons, New York, NY.Production of antibodies according to original expectation specificity of antagonism and affinity is screened the colony that originates from single immortality cell, the output of the monoclonal antibody that is produced by this cell can strengthen by various technology, comprises in the peritoneal cavity that is expelled to vertebrate host.Alternatively, people can be according to (1989) Science such as for example Huse 246: the general scheme that 1275-1281 describes is separated the dna sequence dna of coding monoclonal antibody or its binding fragment by the DNA library of screening from human B cell.

Other technology that are fit to are included in the library of selecting antibody in phage or the similar carrier.Referring to, for example, Huse etc., Science 246: 1275-1281 (1989); With Ward etc., Nature 341: 544-546 (1989).Polypeptide of the present invention and antibody can have to be modified or modification ground use, comprises chimeric or humanized antibody.Frequently, polypeptide carries out mark with antibody by covalently or non-covalently being connected the material that detectable signal is provided.Various markers and interconnection technique are known, and report is widely arranged in science and patent documentation.The marker that is fit to comprises radionuclide, enzyme, substrate, cofactor, inhibition, fluorescence part, chemiluminescent moiety, magnetic particle, or the like.Instructed the patent of using such marker to comprise United States Patent(USP) Nos. 3,817,837; 3,850,752; 3,939,350; 3,996,345; 4,277,437; 4,275,149; With 4,366,241.And, can produce recombination immunoglobulin, referring to Cabilly U.S. Patent No. 4,816,567; With (1989) Proc.Nat ' lAcad.Sci.USA such as Queen 86: 10029-10033; Or in transgenic mice, make, referring to (1997) Nature Genetics such as Mendez 15: 146-156; Also referring to Abgenix and Medarex technology.

Can produce antibody or bonding composition by binding substances immune animal with polypeptide, fragment, peptide or epi-position and carrier proteins at the intended fragment of IL-10.Cell preparation monoclonal antibody from secretion expectation antibody.Can screen the next IL-10 of these antibody in conjunction with normal or defective.Usually measure through ELISA, these monoclonal antibodies usually with at least about 1 μ M, more generally at least about 300nM, typically at least about 30nM, preferably at least about 10nM, preferred at least about 3nM or better K _dThe value combination.Also can use the biological assay of describing among the following trifle D to identify suitable non-human antibody.

The humanization of C.IL-10 specific antibody

Can use the source of any suitable non-human antibody as the hypervariable region.Non-human antibody's source includes, but not limited to mouse, wolf, ox and primates.For most part, humanized antibody is human normal immunoglobulin (receptor's antibody), therein receptor's hypervariable region residue by from inhuman species (donor antibody) for example the hypervariable region residue of specificity, affinity and ability mouse, rat, rabbit or non-human primates, that have expectation (capacity) substitute.In some cases, Fv framework region (FR) residue of human normal immunoglobulin is substituted by corresponding inhuman residue.In addition, humanized antibody can comprise the residue that does not neither also exist at receptor's antibody in donor antibody.Carrying out these modifies with the further expectation biologic activity performance of improving antibody.Relevant in detail situation, referring to Jones etc., Nature 321: 522-525 (1986); Reichmann etc., Nature 332: 323-329 (1988); And Presta, Curr.Op.Struct.Biol. 2: 593-596 (1992).

The method of regroup ground engineered antibody has been described, for example, (U.S. Patent No. 4 such as Boss, 816,397), (U.S. Patent No. 4 such as Cabilly, 816,567), Law etc. (the open No.438310 of european patent application) and Winter (european patent application discloses No.239400).

By in the anti-IL-10 antibody dna of humanization, importing suitable Nucleotide variation or synthetic, prepare the aminoacid sequence variant of the anti-IL-10 antibody of humanization by peptide.Such variant comprises, for example, deletes and/or insert and/or replace the residue in (for example, SEQ ID the NO 5 and 10) aminoacid sequence shown in the anti-IL-10F of humanization (ab).Any combination of deleting, inserting and replacing obtains final construct, and condition is that final construct has desired characteristics.Amino acid changes the translation post-treatment that also may change the anti-IL-10 antibody of humanization, for example, changes the number or the position of glycosylation site.

Be used to identify method, be called " L-Ala scanning sudden change ", by Cunningham and Wells, Science as some residue preferred sudden change position, the anti-IL-10 antibody polypeptides of humanization or zone 244: 1081-1085 (1989) describes.At this, (for example identify residue or one group of target residue, charged residue such as arg, asp, his, lys and glu), and replace with neutral or electronegative amino acid (most preferred L-Ala or poly-L-Ala) and to influence amino acid and the antigenic interaction of IL-10.Then by importing further in the site of replacing or other variation improves and shows the amino-acid residue that replacement is had function susceptibility.Thereby, when having determined to import the site of aminoacid sequence variation, needn't pre-determine the character of sudden change itself.For example, in order to analyze performance, carry out ala scanning or random mutation at target codon or zone in given site mutation, and the variant of the anti-IL-10 antibody of humanization of expressing according to the screening active ingredients of expectation.

Aminoacid sequence insert be included in amino and/or C-terminal, length is a residue to the fusion of the polypeptide that contains 100 or more residues, and the interior insertion of the sequence of single or multiple amino-acid residues.The terminal example that inserts comprises anti-IL-10 antibody of humanization with the terminal methionyl residue of N-or the antibody that merges with the epi-position label.Other of the anti-IL-10 antibody molecule of humanization insert enzyme or the N-of polypeptide and the anti-IL-10 antibody of humanization or the fusion of C-end that variant comprises the serum half-life that improves antibody.

The variant of another kind of type is that amino acid is replaced variant.These variants have the different residue that inserts at least one amino-acid residue of removing and the position at it in the anti-IL-10 antibody molecule of humanization.The most interested site of replacing sudden change comprises the hypermutation ring, but the FR change is also expected.Table 2 in method described below and table 3 provide the guidance about changeable hypervariable region residue.Relating to antigen bonded hypervariable region residue or FR residue generally replaces in conservative relatively mode.

The amino acid variant of the another kind of type of antibody has changed the primary glycosylation pattern of antibody.The meaning that changes is the one or more carbohydrate parts that exist in the deletion antibody, and/or adds the one or more glycosylation sites that are not present in the antibody.The glycosylation of antibody typically N-connect or O-connects.The carbohydrate that is meant that N-connects partly is attached on the side chain of asparagine residue.Tripeptide sequence l-asparagine-X-Serine and l-asparagine-X-Threonine, wherein X is any amino acid except that proline(Pro), is the recognition sequence that carbohydrate part enzymatic is attached to the l-asparagine side chain.Thereby any one existence of these tripeptide sequences all produces the potential glycosylation site in polypeptide.The glycosylation that O-connects is meant that one of carbohydrate N-acetylgalactosamine, semi-lactosi or wood sugar are attached on the hydroxy-amino-acid, and modal is Serine or Threonine, and 5-oxyproline or 5-oxylysine also can use.

Can make its one or more (being used for the glycosylation site that N-connects) of containing above-mentioned tripeptide sequence realize easily adding glycosylation site by changing aminoacid sequence to antibody.Also can be by in the sequence of original antibody, adding or replacing one or more Serines or threonine residues (being used for the glycosylation site that O-connects) changes.

The nucleic acid molecule for preparing the aminoacid sequence variant of coding humanization IL-10 specific antibody by the whole bag of tricks known in the art.These methods comprise, but be not limited to, separate (for the aminoacid sequence variant of natural generation), or by oligonucleotide mediated (or fixed point) sudden change from natural origin, PCR sudden change and early the expression cassette of the variant of the anti-IL-10 antibody of humanization of preparation or non-variant pattern suddenly change and prepare.

Usually, the original humanized antibody aminoacid sequence of the aminoacid sequence that the aminoacid sequence variant of the anti-IL-10 antibody of humanization has and light chain or heavy chain (for example, as SEQ IDNO:5 and 10) have an amino acid sequence identity of at least 75%, preferred at least 80%, preferred at least 85%, preferred at least 90%, most preferred at least 95%.Identity or homology to this sequence are defined in the per-cent of amino-acid residue identical with the anti-IL-10 residue of humanization in the candidate sequence at this, if necessary, in aligned sequences with after importing breach, arriving maximum sequence identity per-cent, and do not consider that any conservative property replaces the part as sequence identity.Antagonist sequence of N-end, C-is terminal or inner extension, deletion or insertion, should not be considered to influence sequence identity or homology.

Humanized antibody can be selected from the immunoglobulin (Ig) of any kind, comprises IgM, IgG, IgD, IgA and IgE.Preferably, antibody is IgG antibody.Can use any isotype of IgG, comprise IgG ₁, IgG ₂, IgG ₃And IgG ₄The variant of IgG isotype also is considered.Humanized antibody can comprise from the sequence that surpasses a type or isotype.Realize easily that by screening antibody in biological assay as described below the optimization of essential constant domain sequence is to produce the biological activity of expectation.

Similarly, the light chain of arbitrary type all can be used in compositions herein and the method.Especially, in current composition and method, kappa, lambda or its variant are useful.

Can use any suitable part from non-human antibody's CDR sequence.By replacing, insert or delete at least one residue CDR sequence of suddenling change, make the CDR sequence be different from the mankind and the non-human antibody's sequence that is adopted.What expect is that this sudden change is minimum.Usually, at least 75% humanized antibody residue is 90% corresponding to non-human CDR residue more frequently, and is most preferred greater than 95%.

Can use any suitable part from the FR sequence of human antibodies.By replacing, insert or delete at least one residue FR sequence of suddenling change, make the FR sequence be different from the mankind and the non-human antibody's sequence that is adopted.What expect is that this sudden change is minimum.Usually, at least 75% humanized antibody residue is 90% corresponding to human FR residue more frequently, and is most preferred greater than 95%.

CDR and FR residue are determined according to the standard sequence definition of Kabat.Kabat etc., Sequences of Proteins of Immunological Interest, National Institutesof Health, Bethesda Md. (1987).

Providing the receptor kind of identifying humanized antibody at this is the method for sequence, and the method comprising the steps of: a) identify the non-human antibody with desired biological activity; B) determine non-human antibody V _HAnd V _LThe aminoacid sequence of structural domain; And c) be that sequence compares with non-human antibody's sequence and lineup's class kind, the wherein said substep that relatively comprises: 1) give non-human V sequence distribution residue numbering according to above-mentioned Kabat; 2) describe CDR and FR zone in the sequence according to above-mentioned Kabat; 3) in non-human and human antibodies kind be the identical predetermined numerical score of specific residue position distribution of sequence; With 4) to produce each human kind be the total points of sequence to all residue score values of summation; And d) mankind that will have the highest total residue score value to plant be that Sequence Identification is a sequence as the receptor kind.In one embodiment, described method further comprises substep: 5) at substep (4) afterwards, for the kind with identical total residue score value is a sequence, be each identical FR residue position distribute digital score value 1 of sequence with the human antibodies kind to the non-human of in substep (3), not scoring; 6) to produce each human kind be total score value of sequence to all residue score values of summation.In specific embodiment, described non-human antibody is specific to IL-10 and suppresses the biologic activity of IL-10.Also provide the antibody that produces by aforesaid method at this.

In one embodiment, use following method that IL-10 antibody is carried out humanization.At first, to the non-human V of IL-10 antibody _LAnd V _HStructural domain is cloned and sequence, and measures aminoacid sequence.Then, with non-human V _HSequence and one group of five human V _HPlant is that aminoacid sequence compares.This group of five contains from IGHV1 and IGHV4 subgroup one representative with from the Three Represents of IGHV3 subgroup.V _HSubgroup is at M.-P.Lefranc, Exp.Clin.Immunogenetics, 18: 100-116 has listed in (2001).Especially, with five kinds be sequence relatively from give non-human V according to the Kabat numbering system _HThe beginning of sequence distribution residue numbering.Referring to Kabat etc., U.S.Department of Health and Human Services, NIH Pub.91-3242 (5th Ed., 1991).Then with non-human V _HSequence and five are human to plant is that in the sequence each is compared.Because the V gene only comprises V _HResidue 1-94 only considers these residues in comparison.Next, describe complementary determining region (CDR) and framework region (FR) in the sequence.According at Kabat, etc., U.S.Department of Health andHuman Services, NIH Pub.91-3242 (5th Ed., 1991) and C.Chothia﹠amp; A.M.Lesk, J.Mol.Biol., 196: CDR and FR are described in the combination of the definition that provides among the 901-917 (1987).Therefore, the CDR of use definition is for V _HStructural domain is that CDR1 is residue 26-35, and CDR2 is residue 50-65, and CDR3 is residue 95-102.Following step is included in the residue position distribute digital score value of the evaluation that non-human and human sequence coincide.An example of this score is shown in the following table 2.

max?89

* expression influences CDR conformation, C.Chothia etc., Nature 342: 877-883, (1989).

After giving residue position distribute digital score value, the score value of all residues of summation.The receptor kind is that sequence is to have that of highest point total.At two or more kinds is that sequence has under the situation of identical score value, then at following residue: 1,3,5-23,25,36,38,40-43,46,66,68,70,72,74,75,77, add 1 (maximum 49) to total points on each position that non-human is identical with the human sequence on the 79-90 and 92.Amount to the residue score value once more, the receptor kind is that sequence is to have that of highest point total.If two or more kinds are sequence and still have identical score value, any one all can be used as the receptor kind is sequence.

If V _LSequence is V _LThe member of kappa subclass, will be from the non-human V of IL-10 specific antibody _LSequence and one group of four human V _LThe kappa kind is that aminoacid sequence compares.The comfortable V.Barbie﹠amp of these four sequence origin; M.-P.Lefranc, Exp.Clin.Immunogenetics 15: 171-183 (1998) and M.-P.Lefranc, Exp.Clin.Immunogenetics 18: determined human V for four that list among the 161-174 (2001) _LA representative of each of subgroup is formed.These four sequences are also corresponding to Kabat etc., U.S.Department of Health and Human Services, NIH Pub.91-3242, four subgroups listing among the pp.103-130 (5th Ed., 1991).Non-human sequence and four kinds be sequence relatively from according to Kabat etc., U.S.Department of Health and HumanServices, NIH Pub.91-3242 (5th Ed., 1991) gives non-human V _LThe sequence residue distributes the beginning of residue numbering.Then with non-human V _LSequence and four are human to plant is that in the sequence each is compared.Because the V gene only comprises V _LResidue 1-95 only considers these residues in comparison.Next, describe complementary determining region (CDR) and framework region (FR) in the sequence.According at Kabat etc., U.S.Department of Health and Human Services, NIHPub.91-3242 (5th Ed., 1991) and C.Chothia﹠amp; A.M.Lesk, J.Mol.Biol., 196: CDR and FR are described in the combination of the definition that provides among the 901-917 (1987).Therefore, the CDR of use definition is for V _LStructural domain is that CDR1 is residue 24-34, and CDR2 is residue 50-56, and CDR3 is residue 89-97.Following step is included in the residue position distribute digital score value of the evaluation that non-human and human sequence coincide.An example of this score is shown in the following table 3.

After giving residue position distribute digital score value, the score value of all residues of summation.The receptor kind is that sequence is to have that of highest point total.Have under the situation with identical score value at two or more kinds of cordings, then at following residue: 1,3,5-23,35,37,39-42,57,59-61,63,65-70 adds 1 to total points on each position that non-human is identical with the human sequence on the 72-86 and 88.Amount to the residue score value once more, the receptor kind is that sequence is to have that of highest point total.If two or more kinds are sequence and still have identical score value, any one all can be used as the receptor kind is sequence.

For the recombinant production of antibody, separate the nucleic acid of encoding antibody, and be inserted into and be used for further clone (amplification of DNA) in the replicable vector or be used for expressing.Utilize conventional procedure easily to separate to encode the DNA of monoclonal antibody and order-checking (for example, utilization can with the heavy chain of encoding antibody and the gene specific bonded oligonucleotide probe of light chain).Many carriers are obtainable.Carrier components generally comprises, but is not limited to, one or more following compositions: signal sequence, replication orgin, one or more marker gene, enhancer element, promotor and transcription termination sequence.

In one embodiment, antibody is in conjunction with the humanization recombinant antibody molecule of IL-10 or its binding fragment, comprise: at least one antibody chain variable region or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:3 (HQYYSGYT) by the SEQ ID NO:2 (NASPLQA) of SEQ ID NO:1 (KTSQNIFENLA), the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one antibody heavy chain variable region or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:8 (HRGFSVWLDY) by the SEQ ID NO:7 (SITLDATYTYYRDSVRG) of SEQ IDNO:6 (GFTFSDYHMA), the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically.In specific embodiment, described light chain of antibody or its binding fragment comprise and have SEQ ID NO:4

(DIQMTQSPSSLSASVGDRVTITCKTSQNIFENLAWYQQKPGKAPKLLIYNASPLQAGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCHQYYSG-YTFGPGTKLELKRT)

The polypeptide of variable region.In a specific embodiment, described light chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:5 and the polypeptide of constant region.Referring to table 4.In a specific embodiment, described heavy chain of antibody or its binding fragment comprise and have SEQID NO:9

(QVQLVESGGGVVQPGRSLRLSCAASGFTTSDYHMAWVRQAPGKGLEWVASITLDATYTYYRDSVRGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARHRGFSVWLDYWGQGTLVTVSS)

The polypeptide of variable region.In another specific embodiment, described heavy chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:10 and the polypeptide of constant region.Referring to table 5.

The plasmid that contains the nucleic acid of coding humanization 12G8 light chain and heavy chain is deposited in American type culture collection (ATCC) on April 20th, 2004, and preserving number is respectively PTA-5923 and PTA-5922.

The full length sequence of the light chain of table 4. humanization 12G8 antibody

The full length amino acid sequence of SEQ ID NO:5 humanization 12G8 antibody

The total length nucleotide sequence of SEQ ID NO:19 humanization 12G8 antibody

--＞variable light chain structural domain

D I Q M T Q S P S S L S A S V G D R V T I T

GAC?ATC?CAG?ATG?ACC?CAG?TCT?CCA?TCC?TCC?CTG?TCT?GCA?TCT?GTA?GGA?GAC?AGA?GTC?ACC?ATC?ACT

C K T S Q N I F E N L A W Y Q Q K P G K A P

TGC?AAG?ACA?AGT?CAG?AAC?ATT?TTT?GAG?AAC?TTG?GCC?TGG?TAT?CAG?CAG?AAA?CCA?GGG?AAA?GCC?CCT

K L L I Y N A S P L Q A G V P S R F S G S G

AAG?CTC?CTG?ATC?TAT?AAT?GCA?AGC?CCT?TTG?CAG?GCC?GGG?GTC?CCA?TCA?AGG?TTC?AGT?GGC?AGT?GGA

S G T D F T L T I S S L Q P E D F A T Y Y C

TCT?GGG?ACA?GAT?TTC?ACT?CTC?ACC?ATC?AGC?AGT?CTG?CAA?CCT?GAA?GAT?TTT?GCA?ACT?TAC?TAC?TGT

--＞the mankind

H Q Y Y S G Y T F G P G T K L E L K R T V A

CAC?CAG?TAT?TAT?AGC?GGG?TAC?ACG?TTT?GGA?CCT?GGG?ACC?AAG?CTG?GAA?CTG?AAA?CGT?ACG?GTG?GCT

The light chain constant domain

A P S V F I F P P S D E Q L K S G T A S V V

GCA?CCA?TCT?GTC?TTC?ATC?TTC?CCG?CCA?TCT?GAT?GAG?CAG?TTG?AAA?TCT?GGA?ACT?GCC?TCT?GTT?GTG

C L L N N F Y P R E A K V Q W K V D N A L Q

TGC?CTG?CTG?AAT?AAC?TTC?TAT?CCC?AGA?GAG?GCC?AAA?GTA?CAG?TGG?AAG?GTG?GAT?AAC?GCC?CTC?CAA

S G N S Q E S V T E Q D S K D S T Y S L S S

TCG?GGT?AAC?TCC?CAG?GAG?AGT?GTC?ACA?GAG?CAG?GAC?AGC?AAG?GAC?AGC?ACC?TAC?AGC?CTC?AGC?AGC

T L T L S K A D Y E K H K V Y A C E V T H Q

ACC?CTG?ACG?CTG?AGC?AAA?GCA?GAC?TAC?GAG?AAA?CAC?AAA?GTC?TAC?GCC?TGC?GAA?GTC?ACC?CAT?CAG

G L S S P V T K S F N R G E C

GGC?CTG?AGC?TCG?CCC?GTC?ACA?AAG?AGC?TTC?AAC?AGG?GGA?GAG?TGT

The full length sequence of the heavy chain of table 5. humanization 12G8 antibody

The full length amino acid sequence of SEQ ID NO:10 humanization 12G8 antibody

The total length nucleotide sequence of SEQ ID NO:20 humanization 12G8 antibody

Q V Q L V E S G G G V V Q P G R S L R L S C

CAG?GTG?CAG?CTG?CTG?GAG?TCT?GGG?GGA?GGC?GTG?GTC?CAG?CCT?GGG?AGG?TCC?CTG?AGA?CTC?TCC?TGT

A A S G F T F S D Y H M A W V R Q A P G K G

GCA?GCC?TCT?GGA?TTC?ACT?TTC?AGT?GAC?TAT?CAT?ATG?GCC?TGG?GTC?CGC?CAG?GCT?CCA?GGC?AAG?GGG

L E W V A S I T L D A T Y T Y Y R D S V R G

CTG?GAG?TGG?GTG?GCA?AGC?ATT?ACT?CTT?GAT?GCT?ACC?TAC?ACT?TAC?TAT?CGC?GAC?TCC?GTG?CGC?GGC

R F T I S R D N S K N T L Y L Q M N S L R A

CGC?TTC?ACC?ATC?TCC?AGA?GAC?AAT?TCC?AAG?AAC?ACG?CTG?TAT?CTG?CAA?ATG?AAC?AGC?CTG?AGA?GCT

E D T A V Y Y C A R H R G F S V W L D Y W G

GAG?GAC?ACG?GCT?GTG?TAT?TAC?TGT?GCG?AGA?CAT?CGA?GGC?TTT?AGC?GTC?TGG?CTT?GAT?TAC?TGG?GGC

--＞IgG 1 constant basis chain structure territory

Q G T L V T V S S A S T K G P S V F P L A P

CAA?GGC?ACC?CTG?GTC?ACC?GTC?TCG?TCG?GCT?AGC?ACC?AAG?GGC?CCA?TCG?GTC?TTC?CCC?CTG?GCA?CCC

S S K S T S G G T A A L G C L V K D Y F P E

TCC?TCC?AAG?AGC?ACC?TCT?GGG?GGC?ACA?GCG?GCC?CTG?GGC?TGC?CTG?GTC?AAG?GAC?TAC?TTC?CCC?GAA

P V T V S W N S G A L T S G V H T F P A V L

CCG?GTG?ACG?GTG?TCG?TGG?AAC?TCA?GGC?GCC?CTG?ACC?AGC?GGC?GTG?CAC?ACC?TTC?CCG?GCT?GTC?CTA

Q S S G L Y S L S S V V T V P S S S L G T Q

CAG?TCC?TCA?GGA?CTC?TAC?TCC?CTC?AGC?AGC?GTG?GTG?ACC?GTG?CCC?TCC?AGC?AGC?TTG?GGC?ACC?CAG

T Y I C N V N H K P S N T K V D K K V E P K

ACC?TAC?ATC?TGC?AAC?GTG?AAT?CAC?AAG?CCC?AGC?AAC?ACC?AAG?GTG?GAC?AAG?AAA?GTT?GAG?CCC?AAA

S C D K T H T C P P C P A P E L L G G P S V

TCT?TGT?GAC?AAA?ACT?CAC?ACA?TGC?CCA?CCG?TGC?CCA?GCA?CCT?GAA?CTC?CTG?GGG?GGA?CCG?TCA?GTC

F L F P P K P K D T L M I S R T P E V T C V

TTC?CTC?TTC?CCC?CCA?AAA?CCC?AAG?GAC?ACC?CTC?ATG?ATC?TCC?CGG?ACC?CCT?GAG?GTC?ACA?TGC?GTG

V V D V S H E D P E V K F N W Y V D G V E V

GTG?GTG?GAC?GTG?AGC?CAC?GAA?GAC?CCT?GAG?GTC?AAG?TTC?AAC?TGG?TAC?GTG?GAC?GGC?GTG?GAG?GTG

H N A K T K P R E E Q Y N S T Y R V V S V L

CAT?AAT?GCC?AAG?ACA?AAG?CCG?CGG?GAG?GAG?CAG?TAC?AAC?AGC?ACG?TAC?CGT?GTG?GTC?AGC?GTC?CTC

T V L H Q D W L N G K E Y K C K V S N K A L

ACC?GTC?CTG?CAC?CAG?GAC?TGG?CTG?AAT?GGC?AAG?GAG?TAC?AAG?TGC?AAG?GTC?TCC?AAC?AAA?GCC?CTC

P A P I E K T I S K A K G Q P R E P Q V Y T

CCA?GCC?CCC?ATC?GAG?AAA?ACC?ATC?TCC?AAA?GCC?AAA?GGG?CAG?CCC?CGA?GAA?CCA?CAG?GTG?TAC?ACC

L P P S R D E L T K N Q V S L T C L V K G F

CTG?CCC?CCA?TCC?CGG?GAT?GAG?CTG?ACC?AAG?AAC?CAG?GTC?AGC?CTG?ACC?TGC?CTG?GTC?AAA?GGC?TTC

Y P S D I A V E W E S N G Q P E N N Y K T T

TAT?CCC?AGC?GAC?ATC?GCC?GTG?GAG?TGG?GAG?AGC?AAT?GGG?CAG?CCG?GAG?AAC?AAC?TAC?AAG?ACC?ACG

P P V L D S D G S F F L Y S K L T V D K S R

CCT?CCC?GTG?CTG?GAC?TCC?GAC?GGC?TCC?TTC?TTC?CTC?TAC?AGC?AAG?CTC?ACC?GTG?GAC?AAG?AGC?AGG

W Q Q G N V F S C S V M H E A L H N H Y T Q

TGG?CAG?CAG?GGG?AAC?GTC?TTC?TCA?TGC?TCC?GTG?ATG?CAT?GAG?GCT?CTG?CAC?AAC?CAC?TAC?ACG?CAG

K S L S L S P G K

AAG?AGC?TCT?TCC?CTG?TCT?CCG?GGT?AAA

In one embodiment, antibody is in conjunction with the humanization recombinant antibody molecule of IL-10 or its binding fragment, comprise: at least one light chain of antibody or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:13 (QQGNEDPWT) by the SEQ ID NO:12 (RASTLES) of SEQ ID NO:11 (RASESVDDYGHSFMH), the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one heavy chain of antibody or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:17 (NRGYDVYFDY) by the SEQ ID NO:16 (VIWSGGSTDYNAAFIS) of SEQ ID NO:15 (GFSLTNYGVH), the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically.In a specific embodiment, described light chain of antibody or its binding fragment comprise the variable region with SEQ ID NO:14 and the polypeptide of constant region.Referring to table 6.In another specific embodiment, described heavy chain of antibody or its binding fragment comprise the variable region with SEQ IDNO:18 and the polypeptide of constant region.Referring to table 7.

The plasmid that contains humanization 11D8 heavy chain and light chain is deposited in ATCC on April 20th, 2004, and preserving number is respectively PTA-5926 and PTA-5927.

The full length sequence of the light chain of table 6. humanization 11D8 antibody

The full length amino acid sequence of SEQ ID NO:14 humanization 11D8 antibody

The full length nucleotide sequence of SEQ ID NO:21 humanization 11D8 antibody

E I V L T Q S P G T L S L S P G E R A T

GAA?ATT?GTG?TTG?ACG?CAG?TCT?CCA?GGC?ACC?CTG?TCT?TTG?TCT?CCA?GGG?GAA?AGA?GCC?ACC

L S C R A S E S V D D Y G H S F M H W Y

CTC?TCC?TGC?AGA?GCC?AGT?GAA?AGT?GTT?GAT?GAT?TAT?GGC?CAT?AGT?TTT?ATG?CAC?TGG?TAC

Q Q K P G Q A P R L L I Y R A S T L E S

CAG?CAG?AAA?CCT?GGC?CAG?GCT?CCC?AGG?CTC?CTC?ATC?TAT?CGT?GCA?TCC?ACC?CTA?GAA?TCT

G I P D R F S G S G S G T D F T L T I S

GGC?ATC?CCA?GAC?AGG?TTC?AGT?GGC?AGT?GGG?TCT?GGG?ACA?GAC?TTC?ACT?CTC?ACC?ATC?AGC

R L E P E D F A V Y Y C Q Q G N E D P W

AGA?CTG?GAG?CCT?GAA?GAT?TTT?GCA?GTG?TAT?TAC?TGT?CAG?CAA?GGT?AAT?GAG?GAT?CCG?TGG

T F G Q G T K V E I K R T V A A P S V F

ACG?TTC?GGT?CAA?GGT?ACC?AAG?GTG?GAA?ATC?AAG?CGT?ACG?GTG?GCT?GCA?CCA?TCT?GTC?TTC

I F P P S D E Q L K S G T A S V V C L L

ATC?TTC?CCG?CCA?TCT?GAT?GAG?CAG?TTG?AAA?TCT?GGA?ACT?GCC?TCT?GTT?GTG?TGC?CTG?CTG

N N F Y P R E A K V Q W K V D N A L Q S

AAT?AAC?TTC?TAT?CCC?AGA?GAG?GCC?AAA?GTA?CAG?TGG?AAG?GTG?GAT?AAC?GCC?CTC?CAA?TCG

G N S Q E S V T E Q D S K D S T Y S L S

GGT?AAC?TCC?CAG?GAG?AGT?GTC?ACA?GAG?CAG?GAC?AGC?AAG?GAC?AGC?ACC?TAC?AGC?CTC?AGC

S T L T L S K A D Y E K H K V Y A C E V

AGC?ACC?CTG?ACG?CTG?AGC?AAA?GCA?GAC?TAC?GAG?AAA?CAC?AAA?GTC?TAC?GCC?TGC?GAA?GTC

T H Q G L S S P V T K S F N R G E C

ACC?CAT?CAG?GGC?CTG?AGC?TCG?CCC?GTC?ACA?AAG?AGC?TTC?AAC?AGG?GGA?GAG?TGT

The full length sequence of the heavy chain of table 7. humanization 11D8 antibody

The full length amino acid sequence of SEQ ID NO:18 humanization 11D8 antibody

The full length nucleotide sequence of SEQ ID NO:22 humanization 11D8 antibody

Q V Q L V E S G G G V V Q P G R S

CAG?GTG?CAG?CTG?GTG?GAG?TCT?GGG?GGA?GGC?GTG?GTC?CAG?CCT?GGG?AGG?TCC

L R L S C A A S G F S L T N Y G V H W V

CTG?AGA?CTC?TCC?TGT?GCA?GCC?TCT?GGT?TTC?TCA?TTA?ACA?AAC?TAT?GGT?GTA?CAC?TGG?GTC

R Q A P G K G L E W V A V I W S G G S T

CGC?CAG?GCT?CCA?GGC?AAG?GGG?CTG?GAG?TGG?GTG?GCA?GTG?ATA?TGG?AGT?GGT?GGA?AGC?ACA

D Y N A A F I S R F T I S R D N S K N T

GAC?TAT?AAT?GCA?GCT?TTC?ATA?TCC?CGA?TTC?ACC?ATC?TCC?AGA?GAC?AAT?TCC?AAG?AAC?ACG

L y L Q M N S L R A E D T A V Y Y C A R

CTG?TAT?CTG?CAA?ATG?AAC?AGC?CTG?AGA?GCT?GAG?GAC?ACG?GCT?GTG?TAT?TAC?TGT?GCG?AGA

N R G Y D V Y F D Y W G Q G T L V T V S

AAT?AGG?GGG?TAC?GAC?GTC?TAC?TTT?GAC?TAC?TGG?GGC?CAA?GGC?ACC?CTT?GTC?ACA?GTC?TCG

S A S T K G P S V F P L A P S S K S T S

TCG?GCT?AGC?ACC?AAG?GGC?CCA?TCG?GTC?TTC?CCC?CTG?GCA?CCC?TCC?TCC?AAG?AGC?ACC?TCT

G G T A A L G C L V K D Y F P E P V T V

GGG?GGC?ACA?GCG?GCC?CTC?GGC?TGC?CTG?GTC?AAG?GAC?TAC?TTC?CCC?GAA?CCG?GTG?ACG?GTG

S W N S G A L T S G V H T F P A V L Q S

TCG?TGG?AAC?TCA?GGC?GCC?CTG?ACC?AGC?GGC?GTG?CAC?ACC?TTC?CCG?GCT?GTC?CTA?CAG?TCC

S G L Y S L S S V V T V P S S S L G T Q

TCA?GGA?CTC?TAC?TCC?CTC?AGC?AGC?GTG?GTG?ACC?GTG?CCC?TCC?AGC?AGC?TTG?GGC?ACC?CAG

T Y I C N V N H K P S N T K V D K K V E

ACC?TAC?ATC?TGC?AAC?GTG?AAT?CAC?AAG?CCC?AGC?AAC?ACC?AAG?GTG?GAC?AAG?AAA?GTT?GAG

P K S C D K T H T C P P C P A P E L L G

CCC?AAA?TCT?TGT?GAC?AAA?ACT?CAC?ACA?TGC?CCA?CCG?TGC?CCA?GCA?CCT?GAA?CTC?CTG?GGG

G P S V F L F P P K P K D T L M I S R T

GGA?CCG?TCA?GTC?TTC?CTC?TTC?CCC?CCA?AAA?CCC?AAG?GAC?ACC?CTC?ATG?ATC?TCC?CGG?ACC

P E V T C V V V D V S H E D P E V K F N

CCT?GAG?GTC?ACA?TGC?GTG?GTG?GTG?GAC?GTG?AGC?CAC?GAA?GAC?CCT?GAG?GTC?AAG?TTC?AAC

W Y V D G V E V H N A K T K P R E E Q Y

TGG?TAC?GTG?GAC?GGC?GTG?GAG?GTG?CAT?AAT?GCC?AAG?ACA?AAG?CCG?CGG?GAG?GAG?CAG?TAC

N S T Y R V V S V L T V L H Q D W L N G

AAC?AGC?ACG?TAC?CGT?GTG?GTC?AGC?GTC?CTC?ACC?GTC?CTG?CAC?CAG?GAC?TGG?CTG?AAT?GGC

K E Y K C K V S N K A L P A P I E K T I

AAG?GAG?TAC?AAG?TGC?AAG?GTC?TCC?AAC?AAA?GCC?CTC?CCA?GCC?CCC?ATC?GAG?AAA?ACC?ATC

S K A K G Q P R E P Q V Y T L P P S R D

TCC?AAA?GCC?AAA?GGG?CAG?CCC?CGA?GAA?CCA?CAG?GTG?TAC?ACC?CTG?CCC?CCA?TCC?CGG?GAT

E L T K N Q V S L T C L V K G F Y P S D

GAG?CTG?ACC?AAG?AAC?CAG?GTC?AGC?CTG?ACC?TGC?CTG?GTC?AAA?GGC?TTC?TAT?CCC?AGC?GAC

I A V E W E S N G Q P E N N Y K T T P P

ATC?GCC?GTG?GAG?TGG?GAG?AGC?AAT?GGG?CAG?CCG?GAG?AAC?AAC?TAC?AAG?ACC?ACG?CCT?CCC

V L D S D G S F F L Y S K L T V D K S R

GTG?CTG?GAC?TCC?GAC?GGC?TCC?TTC?TTC?CTC?TAC?AGC?AAG?CTC?ACC?GTG?GAC?AAG?AGC?AGG

W Q Q G N V F S C S V M H E A L H N H Y

TGG?CAG?CAG?GGG?AAC?GTC?TTC?TCA?TGC?TCC?GTG?ATG?CAT?GAG?GCT?CTG?CAC?AAC?CAC?TAC

T Q K S L S L S P G K

ACG?CAG?AAG?AGC?CTC?TCC?CTG?TCT?CCG?GGT?AAA

Also provide a kind of chimeric recombinant antibody molecule or its binding fragment in conjunction with IL-10, comprise: at least one antibody chain variable region or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQID NO:3 by the SEQ ID NO:2 of SEQ ID NO:1, the CDR2 of CDR1 and CDR3 constitutes; With at least one antibody heavy chain variable region or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:8 by the SEQ ID NO:7 of SEQ ID NO:6, the CDR2 of CDR1 and CDR3 constitutes.

In specific embodiment, chimeric recombinant antibody molecule has the heavy chain of listing among the light chain listed among the SEQ ID NO:23 and the SEQ ID NO:24.Referring to table 8.The nucleic acid of coding 12G8 chimeric antibody light chain and heavy chain is deposited in ATCC on April 20th, 2004, and preserving number is respectively PTA-5925 and PTA-5924.

The sequence of the anti-human IL-10 antibody of the chimeric 12G8 of table 8.

The aminoacid sequence of SEQ ID NO:23 light chain

The nucleotide sequence of SEQ ID NO:25 light chain

--＞signal sequence

M A P V Q L L G L L V L F L P A M R C

ATG?GCT?CCA?GTT?CAA?CTT?TTA?GGG?CTT?TTG?GTG?CTC?TTC?CTC?CCA?GCC?ATG?AGA?TGT

Ripe IgG

--＞rat 12G8 light chain variable structural domain

D I Q M T Q S P S L L S A S V G D R V T L N

GAC?ATC?CAG?ATG?ACC?CAG?TCT?CCT?TCA?CTC?CTG?TCT?GCA?TCT?GTG?GGA?GAC?AGA?GTC?ACT?CTC?AAC

C K T S Q N I F E N L A W Y Q Q K L R E P P

TGC?AAG?ACA?AGT?CAG?AAC?ATT?TTT?GAG?AAC?TTG?GCC?TGG?TAT?CAG?CAA?AAG?CTT?AGA?GAA?CCT?CCC

K L L I F N A S P L Q A G I P S R F S G S G

AAA?CTC?CTG?ATT?TTT?AAT?GCA?AGC?CCT?TTG?CAA?GCG?GGC?ATC?CCT?TCA?AGG?TTC?AGT?GGC?AGT?GGA

S G T D F T L T I T S L Q P E D V A T Y F C

TCT?GGT?ACA?GAT?TTC?ACA?CTC?ACC?ATC?ACC?AGC?CTG?CAG?CCT?GAG?GAT?GTT?GCC?ACA?TAT?TTC?TGC

--＞the mankind

H Q Y Y S G Y T F G P G T K L E L K R T V A

Constant light chain structural domain

A P S V F I F P P S D E Q L K S G T A S V V

C L L N N F Y P R E A K V Q W K V D N A L Q

S G N S Q E S V T E Q D S K D S T Y S L S S

T L T L S K A D Y E K H K V Y A C E V T H Q

G L S S P V T K S F N R G E C

GGC?CTG?AGC?TCG?CCC?GTC?ACA?AAG?AGC?TTC?AAC?AGG?GGA?GAG?TGT?TAA

The aminoacid sequence of SEQ ID NO:24 heavy chain

The nucleotide sequence of SEQ ID NO:26 heavy chain

M D I R L S L V F L V L F M K D V Q C

ATG?GAC?ATC?AGG?CTC?AGC?TTG?GTT?TTC?CTT?GTC?CTT?TTT?ATG?AAA?GAT?GTC?CAG?TGT

Ripe IgG

--＞rat 12G8 variable heavy chain structural domain

E V Q L V E S G G G L V R P G G S L R L S C

GAG?GTG?CAG?TTG?GTG?GAG?TCT?GGA?GGA?GGC?TTG?GTG?CGG?CCT?GGA?GGG?TCC?CTG?AGA?CTC?TCC?TGT

T A S G F T F S D Y H M A W V R Q S P D K G

ACA?GCC?TCA?GGA?TTC?ACT?TTC?AGT?GAC?TAT?CAC?ATG?GCC?TGG?GTC?CGC?CAG?TCT?CCA?GAC?AAG?GGT

L E W V A S I T L D A T Y T Y Y R D S V R G

CTG?GAG?TGG?GTC?GCA?AGC?ATT?ACT?CTT?GAT?GCT?ACC?TAC?ACT?TAC?TAT?CGC?GAC?TCC?GTG?AGG?GGC

R F T I S R N N A K T T L Y L Q M D S L R S

CGA?TTC?ACC?ATC?TCC?CGA?AAT?AAT?GCA?AAA?ACC?ACC?CTT?TAC?CTG?CAA?ATG?GAC?AGT?CTG?AGG?TCT

E D T A T F Y C T R H R G F S V W L D Y W G

GAG?GAC?ACG?GCC?ACT?TTT?TAC?TGT?ACA?AGA?CAT?CGA?GGC?TTT?AGC?GTC?TGG?CTT?GAT?TAC?TGG?GGC

--＞IgG 1 heavy chain

Q G V M V T V S S A S T K G P S V F P L A P

CAA?GGA?GTC?ATG?GTC?ACT?GTC?TCT?TCA?GCT?AGC?ACC?AAG?GGC?CCA?TCG?GTC?TTC?CCC?CTG?GCA?CCC

S S K S T S G G T A A L G C L V K D Y F P E

P V T V S W N S G A L T S G V H T F P A V L

Q S S G L Y S L S S V V T V P S S S L G T Q

T Y I C N V N H K P S N T K V D K K V E P K

S C D K T H T C P P C P A P E L L G G P S V

F L F P P K P K D T L M I S R T P E V T C V

V V D V S H E D P E V K F N W Y V D G V E V

H N A K T K P R E E Q Y N S T Y R V V S V L

T V L H Q D W L N G K E Y K C K V S N K A L

P A P I E K T I S K A K G Q P R E P Q V Y T

Provide the isolated nucleic acid sequences that coding is specific to the antibody of IL-10 at this, comprise the light chain and heavy chain of nucleotide sequence with SEQ ID NO:19 with nucleotide sequence of SEQ ID NO:20.Referring to table 4 and 5.

Provide the isolated nucleic acid sequences that coding is specific to the antibody of IL-10 at this, comprise the light chain and heavy chain of nucleotide sequence with SEQ ID NO:21 with nucleotide sequence of SEQ ID NO:22.Referring to table 6 and 7.

Further provide the isolated nucleic acid sequences of the binding fragment of encoding antibody at this, described antibody is by above-mentioned nucleic acid sequence encoding.In one embodiment, described binding fragment is to be selected from by Fab, Fab ', Fab '-SH, Fv, scFv, F (ab ') ₂The antibody fragment of the group that constitutes with double antibody.

Bi-specific antibody also is useful in method and composition of the present invention.As used herein, term " bi-specific antibody " is meant the antibody that has the binding specificity of at least two different epitopes, generally is monoclonal antibody.In one embodiment, epi-position is from identical antigen.In another embodiment, epi-position is from two different antigens.The method of making bi-specific antibody is known in the art.For example, can utilize two heavy chain immunoglobulin/light chains of coexpression to produce bi-specific antibody to coming regroup ground.Referring to, for example, Milstein etc., Nature 305: 537-39 (1983).Alternatively, can utilize chemistry to connect and prepare bi-specific antibody.Referring to, for example, Brennan etc., Science 229: 81 (1985).Bi-specific antibody comprises bispecific antibody fragment.Referring to, for example, Hollinger etc., Proc.Natl.Acad.Sci.U.S.A.90:6444-48 (1993), Gruber etc., J.Immunol.152:5368 (1994).

D. the biologic activity of the anti-IL-10 antibody of humanization

Can according to external inhibition biological activity or suitable in conjunction with affinity screen have expect in the anti-IL-10 antibody of humanization, at the antibody of the feature of this evaluation.In order to screen antibody in conjunction with the epi-position on the human IL-10, described epi-position by the target antibody combination (for example, those of blocking-up cytokine and its receptors bind), can carry out conventional intersection blocking-up (cross-blocking) analyzes, for example at ANTIBODIES, A LABORATORYMANUAL describes among the Cold Spring Harbor Laboratory, Ed Harlow and David Lane (1988).Alternatively, can carry out epitope mapping, for example, Champe etc., J.Biol.Chem. 270: describe among the 1388-1394 (1995), determine whether combining target epi-position of antibody.Can use the Scatchard of standard to analyze to measure antibody affinity (for example, to human IL-10 affinity).Preferred humanized antibody is to be no more than about 1 * 10 ^-7Preferably be no more than about 1 * 10 ^-8Preferredly be no more than about 1 * 10 ^-9Be no more than about 2 * 10 with most preferred ^-10The Kd value and human IL-10 bonded those.

Antibody and its fragment useful in present composition and method are the antibody and the fragment of biologic activity.As used herein, term " biologic activity " is meant and can and brings into play the antibody or the antibody fragment of biological effect directly or indirectly in conjunction with the epitope of expectation.Usually, these effects are caused by the failure of IL-10 and its receptors bind.As used herein, term " specificity " is meant the selective binding of antibody and target antigen epi-position.Can by under the situation of given condition combination relatively with IL-10 combine and with the combining of uncorrelated antigen or antigen mixture, detect the binding specificity of antibody.If antibody and combining of IL-10 are and at least 10 times of the bonded of uncorrelated antigen or antigen mixture that preferred 50 times, then it is considered to specific.

Inhibition IL-10 specific antibody can suppress the biologic activity of IL-10 by any way, include but not limited to the generation of IL-1, IFN-Y, PGE2, IL-12, TNF, CC and CXC chemokine and the cell surface expression of MHC II class antigen, CD54, CD80 and CD86.Can measure the biological activity of IL-10 specific antibody by any useful method.Referring to, for example, US Patent No s:6,239,260 and 6,207,154.In an example, use mouse mast cell line MC9/2 in analysis of cell proliferation, to evaluate biological activity.Referring to Thompson-Snipes etc., J.Exp.Med. 173: 507-10 (1991).IL-10 stimulates the propagation of this clone, thereby can identify inhibiting antibody by its ability that reduces propagation.The ED of the propagation of MC9/2 clone ₅₀Generally be 0.5-1.0ng/ml.With respect under the situation that does not have antibody or have the propagation of cell under the situation of non-binding antibody, if antibody suppresses the propagation of cell, then antibody is inhibition for propagation.Can use any suitable method to measure propagation.Usually, by (for example, evaluating radiolabeled Nucleotide ³The H-thymidine) mixing of DNA measured propagation.In another embodiment, measure propagation by ATP fluorescence.Preferably, useful antibody suppresses bioactive 80%, preferred 95%, most preferred 99% of IL-10 in present composition.

E. the use of the anti-IL-10 antibody of humanization

Provide the immunoreactive method of inhibition in the human experimenter at this, comprise with the amount of the biologic activity of effective blocking-up IL-10 and use antibody or its binding fragment that is specific to IL-10 to its experimenter of needs, wherein said antibody is in conjunction with the humanization recombinant antibody molecule of IL-10 or its binding fragment, comprise: at least one antibody chain variable region or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:3 by the SEQ ID NO:2 of SEQ ID NO:1, the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one antibody heavy chain variable region or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:8 by the SEQ ID NO:7 of SEQ ID NO:6, the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically.

Further provide and in the human experimenter, suppress immunoreactive method, comprise with the amount of the biologic activity of effective blocking-up IL-10 and use antibody or its binding fragment that is specific to IL-10 to its experimenter of needs, wherein said antibody is in conjunction with the humanization recombinant antibody molecule of IL-10 or its binding fragment, comprise: at least one light chain of antibody or its binding fragment comprise the polypeptide with at least one aminoacid sequence that is selected from the group that the SEQ ID NO:13 by the SEQ ID NO:12 of SEQ ID NO:11, the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically; With at least one heavy chain of antibody or its binding fragment, comprise polypeptide with at least one aminoacid sequence that is selected from the group that the SEQID NO:17 by the SEQ ID NO:16 of SEQ ID NO:15, the CDR2 of CDR1 and CDR3 constitutes; And framework region, wherein the aminoacid sequence of framework region all is the human immunoglobulin aminoacid sequence all or basically.

The immune response of Yi Zhiing is reaction body fluid or cell by this method.Can use the inhibition of method mensuration well known in the art to body fluid and cell response.For example, in the disease relevant with high-caliber autoreactivity antibody, for example, and SLE, with respect to the serum level before the treatment, the minimizing of the serum level of these antibody is the indications that suppress humoral response.Similarly, can use known analyzed in vitro to measure the immunoreactive inhibition of pair cell, for example, the activation phenotype of peripheral blood lymphocyte is chemically examined or identified by for example wandering cells analysis of accounts to propagation and cytotoxicity.Referring to, CURRENT PROTOCOLS INIMMUNOLOGY, up-to-date version.In one embodiment, the experimenter of treatment suffers from systemic lupus erythematosus in this way.In another embodiment, described experimenter suffers from immunologic thrombocytopenic purpura (ITC).In another embodiment, described experimenter suffers from lupus nephritis.In further embodiment, described experimenter suffers from HIV.In another embodiment, described experimenter suffers from hepatitis C.

Provide a kind of composition at this, comprise antibody or its binding fragment, with pharmaceutically acceptable carrier or thinner combination, wherein said antibody is one of antibody disclosed herein.

Any experimenter that can be benefited from the treatment of IL-10 specific antibody can use at this composition that provides and method and treat.Any experimenter this method and composition that provides can be provided treat.Such experimenter is the Mammals that suffers from the immunopathogenesis of autoimmune disorder or symptom or pathogen-inducible, and is preferably human.In a specific embodiment, the experimenter suffers from SLE, lupus nephritis, rheumatoid arthritis, ITC, HIV or hepatitis C.The veterinary science purposes of disclosed method and composition is also expected.

As used herein, " inhibition " or " treatment (treat) " or " treatment (treatment) " comprise the development that delays the symptom relevant with the immunopathogenesis of autoimmune disorder or pathogen-inducible and/or reduce will or the severity of the expection this symptom that can develop.These terms further comprise and improve existing uncontrolled or unwanted autoimmunity immunopathogenesis symptom relevant or pathogen-inducible, prevent other symptom and improve or prevent the basic reason of this symptom.Thereby these terms represent to give vertebrate subject useful result, and described experimenter suffers from the immunopathogenesis disease or the symptom of autoimmunity or pathogen-inducible, or the possibility that develops this disease or symptom is arranged.

As used herein, term " treatment significant quantity " or " significant quantity " are meant the quantity of IL-10 specific antibody, when individually or with combination with other therapeutic agents ground when cell, tissue or experimenter use, for prevention or improvement disease or the situation relevant with the immunopathogenesis of autoimmune disorder or pathogen-inducible, or advancing of disease is effective.The treatment effective dose further is meant the quantity of the compound of the improvement that is enough to cause symptom, for example, and the treatment of relevant medical situation, healing, prevention or improvement, or the raising of the ratio aspect of the treatment of this situation, healing, prevention or improvement.When the single activeconstituents that is applied to use separately, the treatment effective dose singly refers to this composition.When being applied to make up, the treatment effective dose is meant the amount of the combination of the activeconstituents that produces result of treatment, and no matter combination, order still are side by side to use.

Antibody useful in current method is (from any source deutero-, unrestrictedly comprise from reorganization and nonrecombinant source) can be administered to the experimenter of needs separately, or in pharmaceutical composition, use, the carrier or the mixed with excipients that are fit to of antibody and doses in described pharmaceutical composition are treated or are improved various imbalances.This composition also can contain (outside isolating protein and the carrier) thinner, weighting agent, salt, damping fluid, stablizer, solubilizing agent and other materials well known in the art.Term " pharmaceutically acceptable " meaning refers to the not non-toxic material of the validity of the biologic activity of interferon activity composition.The feature of carrier depends on route of administration.

Pharmaceutical composition of the present invention also can contain other immunosuppression reagent or immunomodulatory reagent.Can use any suitable immunosuppression reagent, include but not limited to anti-inflammatory agent, cortical steroid, ciclosporin, tacrolimus (promptly, FK-506), sirolimus, Interferon, rabbit, solvable cytokine receptor are (for example, sTNRF and sIL-lR), in and the reagent of cytokine activity (for example, English husband monoclonal antibody, etanercept), Mycophenolate Mofetil, 15-deoxyspergualin, neurosedyn, glug too miaow that, imuran, come fluorine Lip river rice, endoxan, methotrexate, or the like.Pharmaceutical composition also can adopt the other treatment form, for example phototherapy and radiotherapy.

In another embodiment, provide test kit, it contains and carries out at the necessary reagent of the chemical examination of this method that provides.Provide the locellus test kit especially at this, comprise one or more containers, wherein first container comprises one or more antibody that is specific to IL-10, and one or more other containers comprise one or more following reagent: reconstruct reagent, use reagent.Described container can be glass, plastics or the test piece of plastics or paper (strips).In one embodiment, test kit also contains written instruction.

When this methods of treatment that provides or purposes are provided, be applied the Mammals that is suitable for the situation of IL-10 treatment to having at the antibody of this treatment significant quantity that provides.Described antibody can be used separately according to the method that provides at this, or with the other treatment combined administration, for example, adopt the treatment of other immune-regulating factors (for example, cytokine), immunosuppression preparation etc.When using altogether, can side by side or sequentially use with bioactive agents at this antibody that provides with one or more bioactive agents.If sequentially use, the attending doctor will determine and bioactive agents combined administration proteinic proper order of the present invention.

Individually or the toxicity and the therapeutic efficacy of the antibody compositions of using with other immunosuppression agent combination can measure by the standard pharmaceutical program in cell culture or the laboratory animal, for example, measure LD ₅₀(to 50% lethal dose of colony) and ED ₅₀(colony 50% in the treatment effective dosage).Dose ratio between poisonous and result of treatment is a therapeutic index, and it can be represented as LD ₅₀And ED ₅₀Between ratio.The antibody that shows high therapeutic index is preferred.Can be used to prepare the dosage range that is used for the mankind from the data of these cell culture assays and zooscopy acquisition.The dosage of this compound preferably is in and comprises very little or do not have toxic ED ₅₀The circulation composition scope in.Depend on the formulation of employing and the route of administration of use, dosage can change in this scope.

Preparation and use the technology of the antibody of present method can be at REMINGTON ' SPHARMACEUTICAL SCIENCES, Mack Publishing Co., Easton finds in the up-to-date version of Pa..The mode of using is not a particularly important.The route of administration that is fit to for example can comprise, mouthful, the using of rectum, that wear mucous membrane or intestines; Parenteral sending comprises the injection in intramuscular, subcutaneous, the marrow, and in the sheath, directly in intraventricular, intravenous, endoperitoneal, the nose or intraocular injection.The antibody that is used for pharmaceutical composition or is used to put into practice method of the present invention is used and can be carried out with various conventional route, for example, injection orally ingestible, suction, topical application or skin, subcutaneous, endoperitoneal, parenteral, endarterial or intravenous.It is preferred that patient's intravenously is used.

Replaceability ground can be the focus of feature with the immunopathogenesis by what described antibody is injected directly into arthritic joint or pathogen-inducible for example with part rather than general mode administration of antibodies, usually with the form of bank or extended release preparation.In addition, can be in the targeted delivery of drugs system administration of antibodies, for example in the liposome that is coated with tissue specificity antibody, for example arthritic joint of target or pathogen-inducible be the focus of feature with the immunopathogenesis.Described liposome target illing tissue is also optionally absorbed by illing tissue.

Thereby can use on one or more physiology acceptable carrier to prepare in a conventional way according to the pharmaceutical composition that current method is used, described carrier comprises vehicle and the auxiliary of being convenient to active compound is processed into the goods that can pharmaceutically use.These pharmaceutical compositions can be according to known mode itself, for example, mixing, dissolving, the granulation by routine, makes sugar-coat, grinding, emulsification, sealing, embedding or freeze-drying process and makes.Proper formula depends on the route of administration of selection.When using, can add liquid vehicle, for example the oil in water, oil, animal or plant source, for example peanut oil, mineral oil, soya-bean oil or sesame oil or synthetic oil with liquid form.The liquid form of pharmaceutical composition can further contain physiological salt solution, glucose or other saccharide solutions, or glycol, for example ethylene glycol, propylene glycol or polyoxyethylene glycol.When using with liquid form, pharmaceutical composition contains the protein of the present invention of about by weight 0.5 to 90% protein of the present invention and preferred about 1 to 50%.

When the antibody of the method herein by intravenous injection, skin or subcutaneous injection administering therapeutic significant quantity, form pyrogen-free, the acceptable aqueous solution of parenteral that protein of the present invention will be in.Prepare the acceptable protein soln of this parenteral, with due regard to pH, isotonicity, stability etc. are in those skilled in the art's limit of power.Be used for intravenous injection, skin or hypodermic preferred pharmaceutical composition, except that protein of the present invention, should contain isotonic excipient, for example sodium chloride injection, Ringer ' s injection liquid, glucose injection, dextrose ﹠ sodium chloride injection, Lactated Ringer ' s injection liquid or other vehicle known in the art.Pharmaceutical composition of the present invention also can contain stablizer, sanitas, damping fluid, antioxidant or other additives well known by persons skilled in the art.In order to inject, medicament of the present invention can be formulated in the aqueous solution, preferably in the physiology compatible buffers for example in Hanks ' solution, Ringer ' s solution or the normal saline buffer solution.For wearing mucosal administration, the permeate agent that will be suitable for the obstacle that need see through is used in the prescription.This permeate agent is well known in the art.

Use for suction, use the propelling agent that is fit to, for example, Refrigerant 12, trichlorofluoromethane, dichloro tetrafluoro ethane, carbonic acid gas or other gas that is fit to are sent the antibody that is used for according to current method use with the form that aerosol spray presents easily from the packing material or the atomizer of pressurization.For the aerosol of pressurization, dose unit can be determined by the quantity that provides a valve to send metering.For example, the anther sac of the gelatin that uses in sucker or insufflator and cartridge case can be formulated as and contain compound and suitable powder base, for example powdered mixture of lactose or starch.Described compound can be formulated as by injection and is used for parenteral administration, for example, and by bolus injection or successive infusion.The preparation that is used to inject can exist by unit dosage, for example, and in the ampoule or multi-dose container of the sanitas that has interpolation.Composition can adopt the form of suspension, solution or emulsion in oil or water vehicle, can contain prescription reagent, for example suspends, stablizes and/or dispersion reagent.

The pharmaceutical preparation that is used for parenteral administration comprises the aqueous solution of the active compound of water-soluble form.In addition, the suspension of active compound can be prepared as oily injection suspensions according to circumstances.The lipophilicity solvent or the vehicle that are fit to comprise fatty oil, for example sesame oil, or Acrawax, for example ethyl oleate or triglyceride level, or liposome.Water injection suspension liquid can contain the material of the viscosity that improves suspension, for example sodium carboxymethyl-cellulose, sorbyl alcohol or dextran.Choose wantonly, suspension also can contain suitable stablizer or improve the reagent of the solvability of compound with permission preparation highly concentrated solution.Alternatively, activeconstituents can be that the powder form is used for before use and the vehicle that is fit to, for example, and aseptic apirogen water body plan.

The quantity of useful antibody will depend on the character and the severity of situation to be treated in disclosed method in pharmaceutical composition of the present invention, and depend on the elapsed character of treatment formerly of patient.At last, the attending doctor will determine the used of the present invention proteinic quantity of each independent patient of treatment.Be contemplated that dosage will change according to age, body weight and the reaction of single patient.Originally, the attending doctor will use the antibody of the current method of low dosage, and observe reaction.Can use more heavy dose of antibody of the present invention up to obtaining best result of treatment to the patient, during this time no longer further improve dosage.Expectation be that the various pharmaceutical compositions that are used to put into practice method herein should contain the of the present invention antibody of the about 0.01 μ g of every kg body weight to about 100mg (preferred about 0.1 μ g is to about 10mg, and preferred about 0.1 μ g arrives about 1mg).When using, being used for therapeutic composition of the present invention is pyrogen-free, the acceptable form of physiology in the nature of things.Except when also can randomly be included in treatment useful reagent in the aforesaid composition outside the antibody of preceding method, can replaceability ground or additionally with method of the present invention in composition side by side or sequentially use.Can select definite preparation, route of administration and dosage according to patient's situation by doctor independently.Referring to, for example, Fingl etc., THE PHARMACOLOGICAL BASIS OF THERAPEUTICS (latest edition).Can adjust dose quantity respectively and at interval so that the blood plasma level or the minimum effective concentration (MEC) of the active part that is enough to keep the desired therapeutic effect to be provided.To change for every kind of compound MEC, but can estimate according to vitro data; For example, use chemical examination described here to reach the necessary concentration of 50-90% biological activity restraining effect.

This antibody that provides can be individually or with other treatment form combined administration.Also can use individually or with other antibody that are accredited as the active inhibition of IL-10 or other immunosuppression agent combination at this antibody that provides.

Relating to autoimmune any disease can treat with current method.Preferably, the autoimmune disorders of available IL-10 specific antibody treatment is characterised in that unusual IL-10 expression level and/or lacks the cell that is fit to that promptly, Th1 mediates, reaction.This disease includes, but not limited to systemic lupus erythematosus (SLE), immunologic thrombocytopenic purpura (ITC), lupus nephritis, diabetes, insulin-dependent diabetes (IDDM), rheumatoid arthritis (RA).

Any disease that relates to the immunopathogenesis of pathogen-inducible can be treated with current approach.Preferably, the immunopathogenesis of the pathogen-inducible of available IL-10 specific antibody treatment is characterised in that unusual IL-10 expression level and/or lacks the cell that is fit to that promptly, Th1 mediates, reaction.This disease includes, but not limited to HIV, hepatitis C, visceral leishmaniasis (visceral leishmaniasis), malaria, filaricide, leprosy, pulmonary tuberculosis, moniliosis and M.avium and infects.

Understand broad scope of the present invention best with reference to following examples, it does not mean that and limits the invention to specific embodiment.

F. embodiment

Example I. general method

Describe or with reference to some standard methods, for example, Maniatis etc. (1982) MOLECULAR CLONING, A LABORATORY MANUAL, Cold SpringHarbor Laboratory, Cold Spring Harbor Press; Sambrook etc. (1989) MOLECULAR CLONING:A LABORATORY MANUAL, (2d ed.), Vols.1-3, CSH Press, NY; Ausubel etc., BIOLOGY, Greene PublishingAssociates, Brooklyn, NY; Or AusubeI etc. (1987 and supplementary issue) CURRENTPROTOCOLS IN MOLECULAR BIOLOGY, Greene/Wiley, New York.Method of purifying protein comprises such method, as ammonium sulfate precipitation, column chromatography, electrophoresis, centrifugal, crystallization, etc.Referring to, for example, Ausubel etc. (1987 and regular supplementary issue); Deutscher (1990) " Guide to Protein Purification " in METH.ENZYMOL., other volumes in vol.182 and this cover book series; With producer's data about the use of protein purification product, for example Pharmacia, Piscataway, N.J. or Bio-Rad, Richmond, CA.Allow and suitable fragment merges in conjunction with recombinant technology, for example FLAG sequence or coordinator, it can be removed sequence by proteolytic enzyme and merges.Referring to, for example, Hochuli (1990) " Purification of Recombinant Proteins with Metal ChelateAbsorbent " in Setlow (ed.) GENETIC ENGINEERING, PRINCIPLEAND METHODS 12:87-98, Plenum Press, N.Y.; With (1992) QIAEXPRESS:THE HIGH LEVEL EXPRESSION ﹠amp such as Crowe; PROTEINPURIFICATION SYSTEM, Qiagen, Inc., Chatsworth, CA.

Carry out the computer sequential analysis, for example, use the available software program, comprise those of originating from GCG (U.Wisconsin) and GenBank.Also used the public's sequence library, for example from GenBank's etc.

Example II. the humanization of anti-human IL-10 antibody

As the humanization of describing among the above trifle C that carries out the human IL-10 antibody of rat anti 12G8.Accompanying drawing 1 has shown and has distributed the residue numbering and for being that the corresponding digital score value is distributed in the identical residue position of sequence with the kind of checking.Shown the 12G8 variable region of the light chain (accompanying drawing 1A) of the anti-human IL-10 antibody of 12G8 and heavy chain (accompanying drawing 1B) and the calculating that resists the variable region of the light chain (accompanying drawing 1C) of human IL-10 antibody and heavy chain (accompanying drawing 1D) to carry out to 11D8.

EXAMPLE III. the pharmacokinetics of anti-human IL-10 antibody 12G8

Purpose: in mouse model, obtain estimation to t1/2 and subcutaneous bioavailability in the body of 12F8 antibody.

Antibody: administration of antibodies in the vehicle of 10mM sodium-acetate, 8% sucrose, pH 5.25.

Mouse:

(ICR) the BR female mice is available from Charles RiverLaboratories.

Experimental design: mouse is accepted intravenously (i.v. side tail vein) or subcutaneous (in s.c. nape portion or the omoplate or side) single antibody bolus injection.Antibody dosage comprises 0.03,0.3,3.0 and the every mouse of 30mg/kg.Observe mouse up to back 28 days of injection.During this time cycle, mouse is weighed and takes serum sample.For 12G8 (SCH708980) group (group 1-8), after injection 0.5,1,3,6,10,16 hour, the 1st, 2,3,5,7,10,14,21 and 28 day,, take serum sample with 5 mouse/time points.In vehicle group (group 9), only before injection, injection used 5 mouse/time point to take serum sample in back 1 hour, 14 days or 21 days.Use specific ELISA to measure serum il-10 level and serum 12G8 antibody horizontal.

Pharmacokinetic parameter is measured.Use WinNonlin Pro v4.0 estimation or calculate all parameters.For the case of non-partitioned analysis, use Model 200 (SC) or Model 201 (IV).The input data are standardized group of arithmetical mean concentration-time datas of dosage.For group 2-4 and 6-8, input dosage is nominal standard dose.For

group

1 and 5, input dosage is 0.014mg/kg.For partition analysis, use Model 3 (SC) or Model 7 (IV).The input data are the standardized single animal concentration-time datas of dosage.All couplings are used the weight (wt=1) of homogeneous to each data point.For group 2-4 and 6-8, input dosage is nominal standard dose.For

group

1 and 5, input dosage is 0.014mg/kg.The coupling of using visual inspection to assess, to estimate/parameters calculated, residual and AIC﹠amp; The SBC index is carried out the comparison of SE.

In following table, shown the general introduction of reclaiming to drug solns.

The general introduction of table 9. body weight, dosage level, administration strength of solution (mean value ± SD)

Below the form of Xian Shiing has been summarized from the data of having accepted the group of 12G8 antibody by the i.v. injection.

The case of non-partitioned method parameter of table 10.IV pill administration group

The partition method parameter of table 11.IV pill administration group

Below the form of Xian Shiing has been summarized from the data of having accepted the group of 12F8 antibody by the s.c. injection.

The case of non-partitioned method parameter of table 12.SC pill administration group

* owing to underestimated IV AUC, bioavailability may be high.

The partition method parameter of table 13.SC pill administration group

The concentration time that has shown the 12F8 antibody that uses various dosage and approach in Fig. 2 distributes.

Conclusion: for except that lowest dosage levels all the group, dosage all nominal 20% in.The chances are because the existence of anti-SCH708980 (humanization 12G8) antibody can be observed in

group

7 or 8 in back 10 days in injection to be lower than expection concentration.(A) IV pill pharmacokinetics.Transformation period, clearance rate and distribution volume are being seen for other IgG1 monoclonal antibodies all to be typical.The distribution volume approximately equal is in the serum volume or be a bit larger tham the serum volume, shows minimum EV distribution.T1/2 was 10 to 17 days scope.The rising of AUC is general and dosage is proportional, shows the linear PK on the dosage range of test.(B) SC pill pharmacokinetics.Peak concentration generally is and dose proportional, reaches in 1-2 days after administration, shows uptake rate and amplitude consistent on the dosage range of test.The rising of AUC is general and dosage is proportional, shows linear PK.The transformation period scope was eliminated at 8-14 days in the end eventually, was similar to other IgG1 monoclonal antibodies.Absolute bioavailability is very high, scope=70-100%, although owing to underestimated IV AUC, estimated value＞90% may be high.

EXAMPLE IV. use the KinExA technology that Humanized anti-human class IL-10 antibody SCH 708980 (12G8) are measured equilibrium dissociation constant (Kd)

Use KinExA 3000 (Sapidyne Instruments Inc.) to measure the equilibrium dissociation constant (Kd) of humanized antibody SCH 708980.KinExA has used the kinetics exclusion to analyze the principle of (Kinetic Exclusion Assay) method according to the concentration of compound antibody not in the mixture of measuring antibody, antigen and antibody-antigenic compound.By mixture being exposed to the very short time in the immobilized antigen of solid phase, measure the concentration of free antibodies.In fact, this is by making liquid phase Ag-Ab mixture flow realize that through antigen coated particle described particle is trapped in the wandering cells.The data of using the conventional software analysis to produce from instrument.Use mathematical theory calculated equilibrium constant according to following supposition:

1. reversible in conjunction with equation in conjunction with following equilibrated:

K _on[Ab][Ag]＝K _off[AbAg]

2. antibody and antigen 1: 1 combination, total antibody equals immune complex and adds free antibodies

3. instrument signal and free antibodies concentration linear dependence.

The material that uses: at the monoclonal humanized antibody SCH 708980 (h12G8) of recombinant human IL-10; Recombinant human IL-10 (hIL-10); Recombined small-mouse IL-10 (mIL-10), reorganization dog IL-10 (dog IL-10); The PMMA particle, 98 microns (Sapidyne, Cat No.440198); Neutravidin (Pierce, Cat No.31000); EZ-link TFPPEO-Biotin (Pierce, Cat No.21219); Biotinylated rhIL-10; With the anti-HuIgG of Cy5 bonded goat (H+L) (Jackson Immunoresearch LaboratoriesCat.No 109-175-088, lot 49069).

The PMMA particle wraps quilt according to the scheme of producer with biotinylated rhIL5.For the biotinylation of rhIL5, use EZ-link TFP PEO-Biotin according to the recommendation (Pierce bulletin 0874) of producer.All experimental procedures are carried out according to KinExA 3000 handbooks.

Experiment condition: all carries out in duplicate.For hIL-10, use following condition:

Sample volume: 1.5ml

Sample flow rate: 0.25ml/min

Marker volume: 0.5ml

Marker flow velocity: 0.25ml/min

MAb concentration: 0.1nM

The highest Ag (hIL-10) concentration: 4.0nM

Minimum Ag (hIL-10) concentration: 3.91pM

Prepare antigenic twice serial dilution thing, and mix with the antibody of constant density.With mixture at room temperature (RT) hatching 2 hours to reach balance.

For mIL-10, use following condition:

Sample volume: 0.5ml

Sample flow rate: 0.25ml/min

Marker volume: 0.5ml

Marker flow velocity: 0.25ml/min

MAb concentration: 1nM

The highest Ag (mIL-10) concentration: 50nM

Minimum Ag (mIL-10) concentration: 48.8pM

Prepare antigenic twice serial dilution thing, and mix with the antibody of constant density.Mixture is hatched 2 hours to reach balance at RT.

For dog IL-10, use following condition:

Sample volume: 2ml

Sample flow rate: 0.25ml/min

Marker volume: 1ml

Marker flow velocity: 0.25ml/min

MAb concentration: 0.1nM

The highest Ag (mIL-10) concentration: 5.0nM

Minimum Ag (mIL-10) concentration: 4.88pM

The result is shown in the following table.

Table 14. uses the 12F8 antibody equilibrium dissociation constant (Kd) of KinExA technology

EXAMPLE V. use combining of recombinant il-10 that competitive electrochemiluminescence chemical examination (ECLA) measures anti-hIL-10 monoclonal antibody and hIL-10-Ra and different sources.

Technological overview. the electrochemiluminescence technology is by IGEN, and (Gaithersburg MD) develops Inc, is used in the M series M8/384 analyser that is used for this work.The electrochemiluminescence technology has been used stable ruthenium metallo-chelate (Ori-TAG), and under the situation that has tripropyl amine (TPA), it produces electrochemiluminescence when applying voltage.Paramagnetic ball, diameter is several microns, serves as solid phase and is convenient to analytic dynamics fast.Ball/mixture guiding is captured on the electrode by applying magnetic through wandering cells.Apply voltage, measure the electrochemiluminescence that produces.

The material .96 hole polypropylene flat board (Costar, Cat.No.3365, Fisher Sci.Cat.No.07200697) that uses; The chemical examination damping fluid of 0.1%BSA, 0.05% polysorbas20, PBS pH 7.5; Paramagnetic ball (Streptavidin-Dynabeads, Igen, Inc., Cat.No.110029); Recombinant human IL-10 dipolymer (hIL-10-dimer); Recombinant human IL-10 monomer (hIL-10-mono); Recombined small-mouse IL-10 (mIL-10); Reorganization dog IL-10 (cynoIL-10); With the reorganization hIL-10Ra (hIL-10Ra): the protein of FLAG-mark.Use Ori-Tag-NHS ester (Igen, Inc.Cat.No.110034) the anti-FLAG M2 monoclonal antibody of preparation Ori-Tag mark (OriTag marker: IgG attacked ratio 8: 1) according to the scheme of producer.Anti-Flag M2 monoclonal antibody is available from Sigma (Cat.No.F3165).Use rat anti hIgG monoclonal antibody as above to prepare the anti-hIgG 1A2 monoclonal antibody of Ori-Tag mark.(Jackson ImmunoresearchLaboratories, Inc.PA Cat.No.112-005-143) as above prepare the mouse IgG of the Chinese People's Anti-Japanese Military and Political College antibody of Ori-Tag mark from the mouse IgG of the polyclone goat Chinese People's Anti-Japanese Military and Political College (H+L) antibody.Use TFP-PEO-vitamin H (Pierce, Cat.No.21219) preparation biotinylated recombinant human IL-10 (hIL-10-vitamin H) according to the recommendation (Pierce bulletin 0874) of producer.As preparation rat anti hIL-10mAb 12G8 described here (r12G8): the anti-hIL-10mAb 12G8 of JES3.12G8 and humanization (h12G8-1).

Scheme. all unlabelled IL-10 goods (mIL-10, dog IL-10, hIL-10 dipolymer, hIL-10 monomer) are carried out 1/3 serial dilution of 50 microlitres chemical examination damping fluid in 96 hole microtiter plates, since the 3 μ g/ml in first hole.All samples carries out in duplicate.The 50 μ lhIL-10-vitamin Hs of 25ng/ml are added in each hole, add hIL-10Ra (100ng/ml 50 μ l) or anti-hIL-10mAb (10ng/ml 50 μ l) subsequently.In each hole, add 50 microlitre Ori-Tag bonded second antibody with the concentration of 500ng/ml.For hIL-10Ra, r12G8 and h12G8, correspondingly use following Ori-Tag binding substances: anti-FLAG M2-OriTag, the mouse IgG-OriTag of the Chinese People's Anti-Japanese Military and Political College and anti-hIgG 1A2-OriTag.At last, add streptavidin-Dynabeads of 50 μ l 0.1mg/ml to each hole.After at room temperature hatching one hour, handle dull and stereotyped with M series M8/384 analyser.With respect to control sample, calculate the inhibition per-cent of the signal of unmarked IL-10 goods.In order to mark and draw data and to calculate IC ₅₀, use GraphPad Prism software.

The result is shown in the following table.

Table 15. uses ELCA to measure in conjunction with affinity

The result of the sign of general introduction rat 12G8 antibody and humanization 12G8 antibody (SCH708980) in following table.

Table 16

Example VI. neutralization in the body of Humanized anti-human class IL-10 antibody

Neutralization effectiveness in the body of assessment SCH 708980 and JES.12G8 in mouse Leishnaania major model.In this model, usually CB6F1 mouse that parasitic infection is had a resistance becomes susceptible by the genetically modified heterozygosis of human IL-10 under the control of MHC II class promotor.With 15 * 10 ⁶Stationary phase, L. major parasite carried out s.c. palmula 3 days before attacking, and beginning is weekly with SCH 708980 or JES.12G8s.c. injection CB6F1 or CB6F1-huIL-10Tg mouse.Come the monitoring disease development by measuring palmula swelling weekly.Accompanying drawing 3 has shown that SCH708980 (humanization 12G8) and parent rat 12G8 are with the neutralized protective effect of IL-10 of the mode of dose-dependently.

Can carry out many modifications and variations of the present invention are not deviated from its spirit and scope, this is conspicuous for those skilled in the art.Specific implementations described here only provides by way of example, and the present invention will be come together to limit by the full breadth of the clauses and subclauses of subsidiary claim and the equivalent that this claim is enjoyed; By specific embodiment restriction, described embodiment is not presented in this by way of example in the present invention.

Citation to above-mentioned publication or file does not mean that any above-mentioned content of approval is the prior art of being correlated with, and it does not constitute any approval to the interior perhaps date of these publications or file yet.Be incorporated in this by reference at this United States Patent (USP) of quoting and other publications.

Claims

1. the receptor kind of identifying humanized antibody is the method for sequence, and the method comprising the steps of:

A) identify non-human antibody with desired biological activity;

B) determine non-human antibody V _HAnd V _LThe aminoacid sequence of structural domain; With

C) be that sequence compares with described non-human antibody's sequence and lineup's class kind, the wherein said substep that relatively comprises:

1) gives non-human V _HAnd V _LThe sequence distribution residue numbering of structural domain sequence;

2) describe CDR and FR zone in the sequence;

3) be that predetermined numerical score is distributed in each identical residue position of sequence at non-human with human the kind; With

4) to produce each human kind be total score value of sequence to all residue score values of summation; With

D) mankind that will have the highest total residue score value to plant be that Sequence Identification is a sequence as the receptor kind.

2. the method for claim 1 further comprises substep:

A) afterwards, for the kind with identical total residue score value is a sequence, be each identical residue position distribute digital score value 1 of sequence with human the kind to the non-human of in substep (3), not scoring at substep (4);

B) to produce each human kind be total score value of sequence to all residue score values of summation.

3. the process of claim 1 wherein described V _HScore according to table 2 in the zone.

4. the process of claim 1 wherein described V _LScore according to table 3 in the zone.

5. the process of claim 1 wherein that described non-human antibody is specific to IL-10 and suppresses the biologic activity of IL-10.