Anti-cd3 antibodies and methods of use thereof

Abstract

The present invention is related to antibodies directed to the antigen CD3 and uses of such antibodies. In particular, the present invention provides fully human monoclonal antibodies directed to CD3. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementarity determining regions (CDR's), specifically from FRI through FR4 or CDRI through CDR3, are provided. Hybridomas or other cell lines expressing such immunoglobulin molecules and monoclonal antibodies are also provided.

1 . A method for alleviating one or more symptoms of cytokine release syndrome, the method comprising administering an anti-CD3 antibody to a subject in need thereof in an amount sufficient to alleviate one or more symptoms of cytokine release syndrome in the subject, wherein the anti-CD3 antibody has a heavy chain with three complementarity determining regions (CDRs), comprising a VH CDR1 comprising the amino acid sequence GYGMH (SEQ ID NO:27); a VH CDR2 comprising the amino acid sequence VIWYDGSKKYYVDSVKG (SEQ ID NO:28); and a VH CDR3 comprising the amino acid sequence QMGYWHFDL (SEQ ID NO:29); and a light chain with three CDRs, comprising a VL CDR1 comprising the amino acid sequence RASQSVSSYLA (SEQ ID NO:30); a VL CDR2 comprising the amino acid sequence DASNRAT (SEQ ID NO:31); and a VL CDR3 comprising the amino acid QQRSNWPPLT (SEQ ID NO:32). The use of  claim 1 , wherein said antibody or fragment thereof inhibits binding of the murine anti-human OKT3 monoclonal antibody to a T-lymphocyte. 
     
     
         2 . The method of  claim 1 , wherein said subject is a human. 
     
     
         3 . The method of  claim 1 , wherein the one or more symptoms are selected from fever, chills, nausea, vomiting, hypotension, and dyspnea. 
     
     
         4 . The method of  claim 1 , wherein levels of one or more cytokines are reduced. 
     
     
         5 . The method of  claim 1 , wherein said antibody comprises a heavy chain variable amino acid sequence comprising SEQ ID NO: 2 and a light chain variable amino acid sequence comprising SEQ ID NO: 4. 
     
     
         6 . The method of  claim 1 , wherein the antibody further comprises a mutation in the heavy chain at an amino acid residue at position 234, 235, 265, or 297 or combinations thereof, and reduces the release of cytokines from a T-cell. 
     
     
         7 . The method of  claim 6 , wherein said mutation results in an alanine or glutamic acid residue at said position. 
     
     
         8 . The method of  claim 7 , the antibody is an IgG1 isotype and contains at least a first mutation at position 234 and a second mutation at position 235, wherein said first mutation results in an alanine residue at position 234 and said second mutation results in a glutamic acid residue at position 235.