US20160215052A1 - Anti-galectin-1 (gal1) monoclonal antibodies and fragments thereof for neutralizing gal1 - Google Patents

Anti-galectin-1 (gal1) monoclonal antibodies and fragments thereof for neutralizing gal1 Download PDF

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US20160215052A1
US20160215052A1 US14/907,418 US201414907418A US2016215052A1 US 20160215052 A1 US20160215052 A1 US 20160215052A1 US 201414907418 A US201414907418 A US 201414907418A US 2016215052 A1 US2016215052 A1 US 2016215052A1
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gal1
antibody
polypeptide
nucleic acid
protein
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Margaret A. Shipp
Jing Ouyang
Scott J. Rodig
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Dana Farber Cancer Institute Inc
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C07K16/2851—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the lectin superfamily, e.g. CD23, CD72
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K39/0005—Vertebrate antigens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00—Drugs for immunological or allergic disorders
    • A61P37/02—Immunomodulators
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/574—Immunoassay; Biospecific binding assay; Materials therefor for cancer
    • G01N33/57484—Immunoassay; Biospecific binding assay; Materials therefor for cancer involving compounds serving as markers for tumor, cancer, neoplasia, e.g. cellular determinants, receptors, heat shock/stress proteins, A-protein, oligosaccharides, metabolites
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/577—Immunoassay; Biospecific binding assay; Materials therefor involving monoclonal antibodies binding reaction mechanisms characterised by the use of monoclonal antibodies; monoclonal antibodies per se are classified with their corresponding antigens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
    • G01N33/6854—Immunoglobulins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/30—Immunoglobulins specific features characterized by aspects of specificity or valency
    • C07K2317/33—Crossreactivity, e.g. for species or epitope, or lack of said crossreactivity
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/30—Immunoglobulins specific features characterized by aspects of specificity or valency
    • C07K2317/34—Identification of a linear epitope shorter than 20 amino acid residues or of a conformational epitope defined by amino acid residues
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/56—Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
    • C07K2317/565—Complementarity determining region [CDR]
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/76—Antagonist effect on antigen, e.g. neutralization or inhibition of binding
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/90—Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C07K2317/92—Affinity (KD), association rate (Ka), dissociation rate (Kd) or EC50 value

Definitions

  • Galectin-1 (Gal1), a member of a highly conserved family of carbohydrate-binding proteins, modulates immune responses and fosters tumor-immune escape through specific recognition of N-acetyllactosamine (Gal- ⁇ 1-4-NAcGlc) residues on the branches of N- or O-linked glycans (Juszczynski et al. (2007) Proc Natl Acad Sci USA. 104:13134-13139; Rabinovich and Croci (2012) Immunity 36:322-335; Rabinovich and Toscano (2009) Nat. Rev Immunol. 9:338-352; Rubinstein et al (2004) Cancer Cell 5:241-251).
  • the antibody, or antigen-binding fragment thereof is detectably labeled, comprises an effector domain, comprises an Fc domain, and/or is selected from the group consisting of Fv, Fav, F(ab′)2), Fab′, dsFv, scFv, sc(Fv)2, and diabodies fragments.
  • FIG. 7 shows a sequence comparison between mouse Gal1 (mGal1) and hGal1 in the region surrounding and including the epitope that 8F4 mAb binds.
  • binding fragments encompassed within the term “antigen-binding portion” of an antibody include (i) a Fab fragment, a monovalent fragment consisting of the VL, VH, CL, and CH1 domains; (ii) a F(ab′) 2 fragment, a bivalent fragment comprising two Fab fragments linked by a disulfide bridge at the hinge region; (iii) a Fd fragment consisting of the VH and CH1 domains; (iv) a Fv fragment consisting of the VL and VH domains of a single arm of an antibody, (v) a dAb fragment (Ward et al., (1989) Nature 341:544-546), which consists of a VH domain, and (vi) an isolated complementarity determining region (CDR).
  • a Fab fragment a monovalent fragment consisting of the VL, VH, CL, and CH1 domains
  • a F(ab′) 2 fragment a bivalent fragment comprising two Fab fragments linked
  • body fluid refers to fluids that are excreted or secreted from the body as well as fluids that are normally not (e.g. amniotic fluid, aqueous humor, bile, blood and blood plasma, cerebrospinal fluid, cerumen and earwax, cowper's fluid or pre-ejaculatory fluid, chyle, chyme, stool, female ejaculate, interstitial fluid, intracellular fluid, lymph, menses, breast milk, mucus, pleural fluid, pus, saliva, sebum, semen, serum, sweat, synovial fluid, tears, urine, vaginal lubrication, vitreous humor, vomit).
  • fluids that are excreted or secreted from the body as well as fluids that are normally not (e.g. amniotic fluid, aqueous humor, bile, blood and blood plasma, cerebrospinal fluid, cerumen and earwax, cowper's fluid or pre-ejaculatory fluid, chyle,
  • CDR refers to a complementarity determining region (CDR) of which three make up the binding character of a light chain variable region (CDR-L1, CDR-L2 and CDR-L3) and three make up the binding character of a heavy chain variable region (CDR-H1, CDR-H2 and CDR-H3).
  • CDRs contribute to the functional activity of an antibody molecule and are separated by amino acid sequences that comprise scaffolding or framework regions.
  • the exact definitional CDR boundaries and lengths are subject to different classification and numbering systems. CDRs may therefore be referred to by Kabat, Chothia, contact or any other boundary definitions.
  • a region having the nucleotide sequence 5′-ATTGCC-3′ and a region having the nucleotide sequence 5′-TATGGC-3′ share 50% homology.
  • the first region comprises a first portion and the second region comprises a second portion, whereby, at least about 50%, and preferably at least about 75%, at least about 90%, or at least about 95% of the nucleotide residue positions of each of the portions are occupied by the same nucleotide residue. More preferably, all nucleotide residue positions of each of the portions are occupied by the same nucleotide residue.
  • a “post-transplantation lymphoproliferative disorder”, “PTLD”, and/or “viral-associated PTLD” each refers to a disorder in which lymphocytes, which are white blood cells produced in the lymphatic tissue (e.g., lymph nodes, spleen, and/or thymus), are over-produced or act abnormally and are caused by or correlated with a virus.
  • Lymphoid cells include thymus derived lymphocytes (T cells); bone marrow-derived lymphocytes (B cells), and natural killer (NK cells), for example. Lymphocytes progress through a number of different stages, including proliferation, activation, and maturation, and lymphoma or aberrant proliferation can develop at each stage.
  • disorders may be malignant neoplasms (and may be classified as aggressive or indolent, or as low, intermediate or high-grade), including those associated with IFN-.gamma., or the disorders may involve non-malignant aberrant expansion of lymphoid cells.
  • LPDs include any monoclonal or polyclonal LPD that is not resolving without treatment and/or that involves excessive cellular proliferation, such as an expanding, monoclonal, polyclonal or oligoclonal, lymphoid neoplasm.
  • Cellular proliferation may be more rapid than normal and may continue after the stimuli that initiated the new growth cease.
  • a neoplasm will show partial or complete lack of structural organization and functional coordination with the normal tissue, and may form a distinct mass of tissue that may be either benign (benign tumor) or malignant (cancer).
  • nucleic acid molecule is intended to include DNA molecules and RNA molecules.
  • a nucleic acid molecule may be single-stranded or double-stranded, but preferably is double-stranded DNA.
  • isolated nucleic acid molecule in reference to nucleic acids encoding antibodies or antibody portions (e.g., V H , V L , CDR3) that bind to Gal1, is intended to refer to a nucleic acid molecule in which the nucleotide sequences encoding the antibody or antibody portion are free of other nucleotide sequences encoding antibodies or antibody portions that bind antigens other than Gal1, which other sequences may naturally flank the nucleic acid in human genomic DNA.
  • an “over-expression” or “significantly higher level of expression” of a marker refers to an expression level in a test sample that is greater than the standard error of the assay employed to assess expression, and is preferably at least twice, and more preferably 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 times or more higher than the expression activity or level of the marker in a control sample (e.g., sample from a healthy subject not having the marker associated disease) and preferably, the average expression level of the marker in several control samples.
  • a control sample e.g., sample from a healthy subject not having the marker associated disease
  • vector refers to a nucleic acid capable of transporting another nucleic acid to which it has been linked.
  • plasmid refers to a circular double stranded DNA loop into which additional DNA segments may be ligated.
  • viral vector Another type of vector is a viral vector, wherein additional DNA segments may be ligated into the viral genome.
  • Certain vectors are capable of autonomous replication in a host cell into which they are introduced (e.g., bacterial vectors having a bacterial origin of replication and episomal mammalian vectors).
  • the nucleic acids may be present in whole cells, in a cell lysate, or in a partially purified or substantially pure form.
  • a nucleic acid is “isolated” or “rendered substantially pure” when purified away from other cellular components or other contaminants, e.g., other cellular nucleic acids or proteins, by standard techniques, including alkaline/SDS treatment, CsCl banding, column chromatography, agarose gel electrophoresis and others well known in the art (see, F. Ausubel, et al., ed. Current Protocols in Molecular Biology, Greene Publishing and Wiley Interscience, New York (1987)).
  • an immortal cell line typically a myeloma
  • lymphocytes typically splenocytes
  • the culture supernatants of the resulting hybridoma cells are screened to identify a hybridoma producing a monoclonal antibody that binds a neutralizing epitope of Gal1.
  • determinations can be based on the normalized expression level.
  • Expression levels are normalized by correcting the absolute expression level by comparing its expression to the expression of a non-target gene, e.g., a housekeeping or other reference gene that is constitutively expressed. Suitable genes for normalization include housekeeping genes such as the actin gene, or epithelial cell-specific genes. This normalization allows the comparison of the expression level in one sample, e.g., a subject sample, to another sample, e.g., a normal sample, or between samples from different sources.
  • Common expression systems include E. coli host cells and plasmid vectors, insect host cells and Baculovirus vectors, and mammalian host cells and vectors.
  • host cells include, without limitation, prokaryotic cells (such as bacteria) and eukaryotic cells (such as yeast cells, mammalian cells, insect cells, plant cells, etc.).
  • prokaryotic cells such as bacteria
  • eukaryotic cells such as yeast cells, mammalian cells, insect cells, plant cells, etc.
  • Specific examples include E. coli, Kluyveromyces or Saccharomyces yeasts, mammalian cell lines (e.g., Vero cells.
  • a polypeptide of interest or fragment thereof can be synthesized chemically, ribosomally in a cell free system, or ribosomally within a cell.
  • Chemical synthesis can be carried out using a variety of art recognized methods, including stepwise solid phase synthesis, semi-synthesis through the conformationally-assisted re-ligation of peptide fragments, enzymatic ligation of cloned or synthetic peptide segments, and chemical ligation.
  • Native chemical ligation employs a chemoselective reaction of two unprotected peptide segments to produce a transient thioester-linked intermediate. The transient thioester-linked intermediate then spontaneously undergoes a rearrangement to provide the full length ligation product having a native peptide bond at the ligation site.
  • such antibodies can also be generated by making heterohybridomas by fusing hybridomas or other cells making different antibodies, followed by identification of clones producing and co-assembling the desired antibodies. They can also be generated by chemical or genetic conjugation of complete immunoglobulin chains or portions thereof such as Fab and Fv sequences.
  • the antibody component can bind to a polypeptide or a fragment thereof of one or more biomarkers of the present invention, including one or more immunoinhibitory biomarkers described herein.
  • nucleotide triplet An important and well known feature of the genetic code is its redundancy, whereby, for most of the amino acids used to make proteins, more than one coding nucleotide triplet may be employed (illustrated above). Therefore, a number of different nucleotide sequences may code for a given amino acid sequence. Such nucleotide sequences are considered functionally equivalent since they result in the production of the same amino acid sequence in all organisms (although certain organisms may translate some sequences more efficiently than they do others). Moreover, occasionally, a methylated variant of a purine or pyrimidine may be found in a given nucleotide sequence. Such methylations do not affect the coding relationship between the trinucleotide codon and the corresponding amino acid.
  • Assay formats can be generated in many different forms and include assays based on cell-free systems, e.g. purified proteins or cell lysates, as well as cell-based assays which utilize intact cells. Simple binding assays can also be used to detect agents which modulate Gal1 activity, for example, by inhibiting the formation of a Gal1-glycan complex or interaction.
  • Gal1 and a substrate such as lactoasamine sequences (Gal ⁇ 1,4 GlcNAc or poly-LacNAc residues on N-glycans and/or O-glycans, such as complex N-glycans or core 2 O-glycans) can be detected by a variety of methods. Modulation of the complex's formation can be quantified using, for example, detectably labeled proteins such as radiolabeled, fluorescently labeled, or enzymatically labeled polypeptides or binding partners, by immunoassay, or by chromatographic detection.
  • detectably labeled proteins such as radiolabeled, fluorescently labeled, or enzymatically labeled polypeptides or binding partners
  • immunoassay or by chromatographic detection.
  • preparations of a binding partner and a test compound are incubated in the polypeptide presenting wells of the plate, and the amount of complex trapped in the well can be quantified.
  • Exemplary methods for detecting such complexes include immunodetection of complexes using antibodies reactive with the binding partner, or which are reactive with the polypeptide and compete with the binding partner; as well as enzyme-linked assays which rely on detecting an enzymatic activity associated with the binding partner, either intrinsic or extrinsic activity. In the instance of the latter, the enzyme can be chemically conjugated or provided as a fusion protein with the binding partner.
  • the Gal1 agent expressing a neutralizing Gal1 epitope can be generated in whole cells, taking advantage of cell culture techniques to support the subject assay.
  • the agent can be constituted in a prokaryotic or eukaryotic cell culture system. This allows for an environment more closely approximating that which therapeutic use of the modulator would require, including the ability of the agent to gain entry into or contact a cell.
  • certain of the in vivo embodiments of the assay are amenable to high through-put analysis of candidate agents.
  • fusion proteins can be introduced into the cell by recombinant techniques (such as through the use of an expression vector), as well as by microinjecting the fusion protein itself or mRNA encoding the fusion protein.
  • the reporter gene construct can provide, upon expression, a selectable marker.
  • one or more unit doses of the immunogen are given at one, two or three time points.
  • the optimal number and timing of boosts can readily be determined using routine experimentation. Exemplary “prime-boost” regimens are described in U.S. Pat. No. 6,210,663 and WO 00/44410.
  • One method according to the present invention involves “priming” a mammalian subject by administration of a priming composition. “Priming,” as used herein, means any method whereby a first immunization using an antigen permits the generation of an immune response to the antigen upon a second immunization with the same antigen, wherein the second immune response is greater than that achieved where the first immunization is not provided.
  • the boosting compositions can include proteins or peptides (intact and denatured), heat-killed recombinant vaccines, inactivated whole microorganisms, antigen-presenting cells pulsed with the instant proteins or infected/transfected with a nucleic acid molecule encoding same, and the like, all with or without adjuvants, chemokines and/or cytokines.
  • promoters which are activatable by infection with a virus such as the ⁇ - and ⁇ -interferon promoters, and promoters which are activatable by a hormone, such as estrogen.
  • promoters which can be used include the Moloney virus LTR, the CMV promoter, and the mouse albumin promoter.
  • a promoter can be constitutive or inducible.
  • RNA viruses include an alphavirus, a poxvirus, an arena virus, a vaccinia virus, a polio virus, and the like. They offer several attractive features for various mammalian cells (Friedmann (1989) Science. 244:1275-1281; Ridgeway, 1988, supra; Baichwal and Sugden. 1986, supra; Coupar et al., 1988; Horwich et al. (1990) J. Virol., 64:642-650).
  • adjuvants or agents that can add to the effectiveness of immunogens include aluminum hydroxide, aluminum phosphate, aluminum potassium sulfate (alum), beryllium sulfate, silica, kaolin, carbon, water-in-oil emulsions, and oil-in-water emulsions.
  • intranasal, inhalation, etc. or for systemic administration, e.g. i.m., i.p., i.v., and the like.
  • Treatment can be initiated with smaller dosages which are less than the effective dose of the compound. Thereafter, in one embodiment, the dosage should be increased by small increments until the optimum effect under the circumstances is reached.
  • the total daily dosage can be divided and administered in portions during the day if desired.
  • pharmaceutically-acceptable carrier means a pharmaceutically-acceptable material, composition or vehicle, such as a liquid or solid filler, diluent, excipient, solvent or encapsulating material, involved in carrying or transporting the subject chemical from one organ, or portion of the body, to another organ, or portion of the body.
  • a pharmaceutically-acceptable material such as a liquid or solid filler, diluent, excipient, solvent or encapsulating material, involved in carrying or transporting the subject chemical from one organ, or portion of the body, to another organ, or portion of the body.
  • Each carrier must be “acceptable” in the sense of being compatible with the other ingredients of the formulation and not injurious to the subject.
  • materials which can serve as pharmaceutically-acceptable carriers include: (1) sugars, such as lactose, glucose and sucrose: (2) starches, such as corn starch and potato starch; (3) cellulose, and its derivatives, such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; (4) powdered tragacanth; (5) malt; (6) gelatin; (7) talc; (8) excipients, such as cocoa butter and suppository waxes; (9) oils, such as peanut oil, cottonseed oil, safflower oil, sesame oil, olive oil, corn oil and soybean oil; (10) glycols, such as propylene glycol; (11) polyols, such as glycerin, sorbitol, mannitol and polyethylene glycol; (12) esters, such as ethyl oleate and ethyl laurate; (13) agar; (14) buffering agents, such as magnesium hydroxide and aluminum hydrox
  • SPR Surface Plasmon Resonance
  • BIAcore Biomolecular Interaction Analysis

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