EP0250569A1 - Herstellung von antikörpern gegen nicht-immunogene moleküle - Google Patents

Herstellung von antikörpern gegen nicht-immunogene moleküle

Info

Publication number
EP0250569A1
EP0250569A1 EP19870900611 EP87900611A EP0250569A1 EP 0250569 A1 EP0250569 A1 EP 0250569A1 EP 19870900611 EP19870900611 EP 19870900611 EP 87900611 A EP87900611 A EP 87900611A EP 0250569 A1 EP0250569 A1 EP 0250569A1
Authority
EP
European Patent Office
Prior art keywords
mammal
agent
antibody
immunogenic
sensitizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19870900611
Other languages
English (en)
French (fr)
Inventor
William D. Matthew
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harvard College
Original Assignee
Harvard College
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harvard College filed Critical Harvard College
Publication of EP0250569A1 publication Critical patent/EP0250569A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies

Definitions

  • This invention relates to antibodies and to methods of making them.
  • Antibodies raised by conventional techniques to a relatively potent antigen such as dinitrophenyl (DNP) will bind to relatively few specific sites on the antigen.
  • Kipps et al. (1978) Proc. Nat'l. Acad. Sci. _7_5: 2914-2917 report that they can increase the number of DNP sites recognized and the amount of DNP antibody produced by diminishing suppressor T-cell activity in mice before they immunize the mice with DNP.
  • Spleens were removed from the treated animals and spleen cells sensitized i ⁇ vitro with preparations containing normal NPF. This procedure yielded antibodies which recognized and inhibited the neurite outgrowth activity of normal NPF.
  • Certain molecules tend not to cause an immunogenic response; such molecules include, for example, functional sites of enzymes and other proteins with highly conserved structures, including hormones, other regulatory molecules, cell surface receptors, certain viral coat proteins, and ubiquitous molecules such as glycosaminoglycans and proteoglycans. It would be extremely useful to produce antibodies which bind such non-immunogenic molecules in order to perform various procedures such as immuno-purifications, immunoassays, or selective immuno-delivery of active molecules.
  • the invention features, in general, producing antibodies which are specific for (i.e., undergo a specific binding reaction with) molecules that are not normally immunogenic.
  • these molecules are not normally immunogenic or non-immunogenic.
  • the method comprises first administering to the mammal a sensitizing agent (either the non-immunogenic molecule or a molecule which has a specific binding site for the non-immunogenic molecule) in order to elicit in the mammal an immune-attenuating response specific for the sensitizing agent.
  • specific binding site includes binding or recognition sites of enzyme/substrate pairs, hormone/receptor pairs, or antigen/antibody pairs.
  • mice are immunized with the non-immunogenic agent, i.e., glycosaminoglycans or proteoglycans such as heparin and hyaluronate, or a synthetic molecule which is non-immunogenic such poly-fucose.
  • the mammals are then immunosuppressed by administering an agent such as cyclophosphamide that is toxic to suppressor T-lymphocytes, and the same sensitizing agent is readministered.
  • the antibodies can be anti-idiotypic antibodies, which can be produced when the non-immunogenic molecule is a first member of a specific binding pair, and the sensitizing agent includes the second member of that pair (or an analog of it) .
  • a hybridoma is formed from an antibody-producing cell of the mammal, and the hybridoma is cultured to produce the antibody in monoclonal form.
  • the invention enables production of antibodies which are able to bind molecules that do not normally elicit an immune response sufficient to make antibody production possible.
  • Specific types of such non-immunogenic molecules are highly conserved enzymes, hormones or other regulatory molecules, cell surface receptors, ubiquitous molecules such as glycosaminoglycans and proteoglycans, or certain viral coat proteins.
  • Figures 1-3 are flow charts of antibody production processes. Immunization and Cyclophosphamide Treatment
  • Fig. 1 is a flow chart of the steps in the process for producing antibodies.
  • monoclonal antibodies which recognize two non-immunogenic glycosaminoglycans (GAG) , chondroitin sulfate and heparin, are made by the following procedure.
  • GAG glycosaminoglycans
  • Six week old female BALB/c mice are immunized intraperitoneally with 1.0 mg of chondroitin sulfate (whale and shark cartilage, Sigma Chemical Co., St. Louis) , and 1.0 mg of porcine heparin (Sigma) attached to positively charged control pore glass (treated with aminopropyltriethoxysilane) , suspended in Freund's complete adjuvant.
  • mice After 24 hours, the mice are injected intraperitoneally with 100-150 mg/kg of the immunosuppressant drug, cyclophosphamide (Cytoxan, Mead Johnson) in saline. After an additional 13 days, 0.5 mg of each GAG in saline is injected intravenously.
  • the spleens of the sensitized-immunosuppressed-sensitized animals are removed and hybridomas are made by fusing antibody-producing cells to NS1 myeloma cells using standard techniques, such as those described by Koehler and Milstein Nature (London) 256:495 (1975) .
  • Hybridomas producing the desired antibodies are screened by solid phase radioimmunoassay and immunohistochemistry.
  • Fig. 2 illustrates generally a method for making an anti-idiotypic antibody which recognizes a non-immunogenic enzyme or a non-immunogenic ligand which is part of a binding pair (e.g. a hormone/receptor pair or other specific binding pairs) .
  • the method is specifically illustrated by making anti-idiotypic antibodies which recognize bacterial and mammalian hyaluronidase using 1.0 mg hyaluronate attached to the positively charged control pore glass for the first immunization, and using 1.0 mg of hyaluronate in saline in the second immunization.
  • the monoclonal antibodies obtained are able to recognize hyaluronidase as evidenced by the fact that hyaluronate inhibits antibody binding to hyaluronidase; the antibodies are able to inhibit the enzymatic activity of hyaluronidase by at least 25%, and the antibodies are able to recognize both mammalian and bacterial hyaluronidases.
  • Fig. 3 illustrates the use of poly-fucose (specifically fucoidan, a sulfated poly-fucose from algae) as a sensitizing agent to recover primary antibodies (Ab,) that bind to fucose as well as secondary or idiotypic antibodies (Ab 2 ) that recognize the enzyme fucosidase or fucose-specific plant lectins.
  • poly-fucose specifically fucoidan, a sulfated poly-fucose from algae
  • anti-idiotypic antibodies which bind to fucose-specific plant lectins and fucosidase are made by the above method using 1.0 mg fucoidan (Sigma) attached to the positively charged control pore glass as a sensitizing agent in the first immunization and 1.0 mg of fucoidan in saline as a sensitizing agent in the second immunization.
  • the fucose-binding monoclonal antibodies are obtained by screening hybridomas with polyfucose.
  • the monoclonal antibodies (Ab 2 ) that bind to fucosidase and fucose-binding plant lectin are obtained by screening with plant lectins.
  • the anti-idiotypic antibodies are able to bind fucose-specific plant lectins as well as mammalian fucosidase. In competitive binding assays, fucose inhibits the anti-idiotypic antibody from binding to lectins.
  • a hybridoma cell line has been prepared by the above technique using hyaluronate as the sensitizing agent. The antibodies produced by that cell line recognize hyaluronidase.
  • a hybridoma cell line has also been prepared by the above techniques using polyfucose as a sensitizing agent. The antibodies produced by that cell line recognize fucosidase as well as fucose-specific plant lectins. A specimen of each cell line will be deposited with a public depository and
  • the method described can be used to raise antibodies to other non-immunogenic molecules, particularly to other glycosoaminoglycans.
  • the method can also be used to raise anti-idiotypic antibodies that
  • the sensitizing agent can be a specific binding partner (or an analog of a specific binding partner) to the non-immunogenic molecule.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Immunology (AREA)
  • Peptides Or Proteins (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
EP19870900611 1985-12-31 1986-12-30 Herstellung von antikörpern gegen nicht-immunogene moleküle Withdrawn EP0250569A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81591185A 1985-12-31 1985-12-31
US815911 1985-12-31

Publications (1)

Publication Number Publication Date
EP0250569A1 true EP0250569A1 (de) 1988-01-07

Family

ID=25219163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870900611 Withdrawn EP0250569A1 (de) 1985-12-31 1986-12-30 Herstellung von antikörpern gegen nicht-immunogene moleküle

Country Status (2)

Country Link
EP (1) EP0250569A1 (de)
WO (1) WO1987004186A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1191275C (zh) * 1999-06-11 2005-03-02 宝生物工程株式会社 抗岩藻多糖抗体

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8704186A1 *

Also Published As

Publication number Publication date
WO1987004186A1 (en) 1987-07-16

Similar Documents

Publication Publication Date Title
CA1308677C (en) Monoclonal antibody capable of recognizing arteriosclerotic lesions and agents for detecting and treating arteriosclerosis
JPH07198718A (ja) 心筋トロポニンtに対する特異的抗体を用いる心筋トロポニンtの測定方法
EP0827512A1 (de) FÜR-i(STAPHYLOCOCCUS AUREUS) SPEZIFISCHER ANTIKÖRPER UND SEINE VERWENDUNG
CA2082643A1 (en) Inhibitors of factor xii activation and applications thereof
US5478926A (en) Monoclonal antibody against human IgE
AU624440B2 (en) Anti-fucosylcermiade monoclonal antibody
EP0250569A1 (de) Herstellung von antikörpern gegen nicht-immunogene moleküle
EP0131834B1 (de) Monoklonaler Antikörper mit Spezifität gegen nur einen Typ eines Isozyms der schweren Kette des menschlichen Herzmyosins
van den Wall et al. Shared idiotypes in mesangial deposits in IgA nephropathy are not disease-specific
EP0410813B1 (de) Monoklonaler Antikörper gegen menschliches BCDF und Immuntestverfahren unter dessen Verwendung
Lamarre et al. Production and characterization of monoclonal antibodies specific for the functional domains of poly (ADP-ribose) polymerase
EP0519728A2 (de) Anti-TCF-II monoklonale Antikörper und ihre Verwendung zur Bestimmung von TCF-II
US6310184B1 (en) Anti-fibroblast growth factor-8 monoclonal antibody
JPH0739439B2 (ja) モノクローナル抗体及びその使用方法
EP0690071B1 (de) Inhibitor und anti-Inhibitor monoklonale Antikörper gegen Meerrettichperoxidase
EP0445750A1 (de) Monoklonaler Antikörper gegen mit Krebs assoziierte humane Galactosyltransferase
JPH08109200A (ja) 抗C5aレセプター抗体、その製造法および用途
JP3452946B2 (ja) 抗TGF−βマスキングプロテインモノクローナル抗体
JP2008520654A (ja) ヒトβig−h3により誘導される遺伝子H−3に対する単クローン抗体およびその用途
JP3047926B2 (ja) マウスインターロイキン−6レセプターに対する抗体及びその使用
US6471963B1 (en) Purified antigenic material and its use in the diagnosis and treatment of diabetes
JP2868808B2 (ja) 活性化血小板抗原測定試薬
DE19807389C2 (de) Monoklonale Antikörper gegen Glycodelin A, Verfahren zu ihrer Herstellung und ihre Verwendung
EP0488277B1 (de) Antikörper gegen Hamsterimmunglobulinen
JPH02219596A (ja) 心筋ミオシン重鎖に対する単一クローン抗体

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19871001

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MATTHEW, WILLIAM, D.