Antibodies that inhibit tslp activity

Abstract

The invention is directed to purified and isolated novel TSLP polypeptides, the nucleic acids encoding such polypeptides, processes for production of recombinant forms of such polypeptides, antibodies generated against these polypeptides, fragmented peptides derived from these polypeptides, and the uses of the above.

1 . An isolated antibody or antibody fragment that specifically binds to a polypeptide selected from the group consisting of:
 (a) a polypeptide consisting of the amino acid sequence set forth in SEQ ID NO:2;   (b) a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2; and   (c) a polypeptide encoded by the nucleic acid molecule consisting of the nucleotide sequence set forth in SEQ ID NO:1,   wherein said antibody or antibody fragment inhibits TSLP-mediated B lineage cell proliferation.   
     
     
         2 . The isolated antibody or antibody fragment of  claim 1 , wherein said antibody specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2. 
     
     
         3 . The isolated antibody or antibody fragment of  claim 1 , wherein said antibody specifically binds to a polypeptide encoded by the nucleic acid molecule consisting of the nucleotide sequence set forth in SEQ ID NO:1. 
     
     
         4 . The antibody of  claim 1 , wherein the antibody is a monoclonal antibody. 
     
     
         5 . The antibody fragment of  claim 1 , wherein the fragment is a Fab or F(ab′) 2 . 
     
     
         6 . A hybridoma that produces the antibody of  claim 1 . 
     
     
         7 . The hybridoma of  claim 6 , wherein said antibody specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2. 
     
     
         8 . A pharmaceutical composition comprising the antibody or antibody fragment of  claim 1  in a physiologically acceptable carrier. 
     
     
         9 . The pharmaceutical composition of  claim 8 , wherein said antibody or antibody fragment specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2. 
     
     
         10 . An isolated antibody or antibody fragment that specifically binds to a polypeptide selected from the group consisting of:
 (a) a polypeptide consisting of the amino acid sequence set forth in SEQ ID NO:2;   (b) a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2; and   (c) a polypeptide encoded by the nucleic acid molecule consisting of the nucleotide sequence set forth in SEQ ID NO:1,   wherein said antibody or antibody fragment inhibits TSLP-mediated B lineage cell development.   
     
     
         11 . The isolated antibody or antibody fragment of  claim 10 , wherein said antibody specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2. 
     
     
         12 . The isolated antibody or antibody fragment of  claim 10 , wherein said antibody specifically binds to a polypeptide encoded by the nucleic acid molecule consisting of the nucleotide sequence set forth in SEQ ID NO:1. 
     
     
         13 . The antibody of  claim 10 , wherein the antibody is a monoclonal antibody. 
     
     
         14 . The antibody fragment of  claim 10 , wherein the fragment is a Fab or F(ab′) 2 . 
     
     
         15 . A hybridoma that produces the antibody of  claim 10 . 
     
     
         16 . The hybridoma of  claim 15 , wherein said antibody specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2. 
     
     
         17 . A pharmaceutical composition comprising the antibody or antibody fragment of  claim 10  in a physiologically acceptable carrier. 
     
     
         18 . The pharmaceutical composition of  claim 17 , wherein said antibody or antibody fragment specifically binds to a polypeptide consisting of the amino acid sequence of amino acids 29 through 159 or 35 through 159 of SEQ ID NO:2.