Compositions and methods for the diagnosis and treatment of tumor

Abstract

The present invention is directed to compositions of matter useful for the diagnosis and treatment of tumor in mammals and to methods of using those compositions of matter for the same.

1 . A method of inhibiting proliferation of a cancer cell that expresses a polypeptide comprising an amino acid sequence having at least 80% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO: 10,    said method comprising contacting said cancer cell with an antibody that specifically binds to the polypeptide shown in SEQ ID NO:26 or the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, thereby inhibiting the proliferation of said cancer cell.    
     
     
         2 . The method of  claim 1 , wherein said antibody is a monoclonal antibody.  
     
     
         3 . The method of  claim 1 , wherein said antibody is an antibody fragment.  
     
     
         4 . The method of  claim 1 , wherein said antibody is a chimeric, human, or humanized antibody.  
     
     
         5 . The method of  claim 1 , wherein said antibody is conjugated to a growth inhibitory agent.  
     
     
         6 . The method of  claim 1 , wherein said antibody is conjugated to a cytotoxic agent.  
     
     
         7 . The method of  claim 6 , wherein said cytotoxic agent is selected from the group consisting of a toxin, an antibiotic, a radioactive isotope, and a nucleolytic enzyme.  
     
     
         8 . The method of  claim 7 , wherein the cytotoxic agent is a toxin.  
     
     
         9 . The method of  claim 8 , wherein the toxin is selected from the group consisting of a maytansinoid and a calicheamicin.  
     
     
         10 . The method of  claim 9 , wherein the toxin is a maytansinoid.  
     
     
         11 . The method of  claim 1 , wherein said antibody is produced in bacteria.  
     
     
         12 . The method of  claim 1 , wherein said antibody is produced in CHO cells.  
     
     
         13 . The method of  claim 1 , wherein said cancer cell is further exposed to radiation treatment or a chemotherapeutic agent.  
     
     
         14 . The method of  claim 1 , wherein the cancer cell expresses a polypeptide comprising an amino acid sequence having at least 95% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         15 . The method of  claim 1 , wherein the cancer cell expresses a polypeptide comprising: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         16 . The method of  claim 1 , wherein the cancer cell is a breast cancer cell, lung cancer cell, colon cancer cell, rectal cancer cell, kidney cancer cell, ovarian cancer cell, pancreatic cancer cell, uterine cancer cell, bone cancer cell, skin cancer cell, bladder cancer cell, esophagus cancer cell, or soft tissue cancer cell.  
     
     
         17 . The method of  claim 16 , wherein the cancer cell is a colon cancer cell.  
     
     
         18 . A method of therapeutically treating a mammal having a tumor comprising cells that express a polypeptide comprising an amino acid sequence having at least 80% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO: 26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10,    said method comprising administering to said mammal a therapeutically effective amount of an antibody that specifically binds to the polypeptide shown in shown in SEQ ID NO:26 or the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, thereby effectively treating said mammal.    
     
     
         19 . The method of  claim 18 , wherein said antibody is a monoclonal antibody.  
     
     
         20 . The method of  claim 18 , wherein said antibody is an antibody fragment.  
     
     
         21 . The method of  claim 18 , wherein said antibody is a chimeric, human, or humanized antibody.  
     
     
         22 . The method of  claim 18 , wherein said antibody is conjugated to a growth inhibitory agent.  
     
     
         23 . The method of  claim 18 , wherein said antibody is conjugated to a cytotoxic agent.  
     
     
         24 . The method of  claim 23 , wherein said cytotoxic agent is selected from the group consisting of a toxin, an antibiotic, a radioactive isotope, and a nucleolytic enzyme.  
     
     
         25 . The method of  claim 24 , wherein the cytotoxic agent is a toxin.  
     
     
         26 . The method of  claim 25 , wherein the toxin is selected from the group consisting of a maytansinoid and a calicheamicin.  
     
     
         27 . The method of  claim 26 , wherein the toxin is a maytansinoid.  
     
     
         28 . The method of  claim 18 , wherein said antibody is produced in bacteria.  
     
     
         29 . The method of  claim 18 , wherein said antibody is produced in CHO cells.  
     
     
         30 . The method of  claim 18 , wherein the cells are further exposed to radiation treatment or a chemotherapeutic agent.  
     
     
         31 . The method of  claim 18 , wherein the cells express a polypeptide comprising an amino acid sequence having at least 95% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         32 . The method of  claim 18 , wherein the cells express a polypeptide comprising: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         33 . The method of  claim 18 , wherein the cells are breast cancer cells, lung cancer cells, colon cancer cells, rectal cancer cells, kidney cancer cells, ovarian cancer cells, pancreatic cancer cells, uterine cancer cells, bone cancer cells, skin cancer cells, bladder cancer cells, esophagus cancer cells, or soft tissue cancer cells.  
     
     
         34 . The method of  claim 33 , wherein the cells are colon cancer cells.  
     
     
         35 . A method of diagnosing the presence of a tumor in a mammal, said method comprising detecting the level of expression of a gene encoding a polypeptide comprising an amino acid sequence having at least 80% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10,    in a test sample of tissue cells obtained from said mammal, wherein a higher level of expression of the gene encoding said polypeptide in the test sample, as compared to a control sample, is indicative of the presence of a tumor in the mammal from which the test sample was obtained.    
     
     
         36 . The method of  claim 35 , wherein detecting the level of expression of a gene encoding said polypeptide comprises employing an oligonucleotide in an in situ hybridization or RT-PCR analysis.  
     
     
         37 . The method of  claim 35 , wherein detecting the level of expression of a gene encoding said polypeptide comprises employing an antibody in an immunohistochemistry analysis.  
     
     
         38 . The method of  claim 35 , wherein the method comprises detecting the level of expression of a gene encoding a polypeptide comprising an amino acid sequence having at least 95% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         39 . The method of  claim 35 , wherein the method comprises detecting the level of expression of a gene encoding a polypeptide comprising: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         40 . The method of  claim 35 , wherein the tumor is a breast tumor, lung tumor, colon tumor, rectal tumor, kidney tumor, ovarian tumor, pancreatic tumor, uterine tumor, bone tumor, skin tumor, bladder tumor, esophagus tumor, or soft tissue tumor.  
     
     
         41 . The method of  claim 40 , wherein the tumor is a colon tumor.  
     
     
         42 . A method of diagnosing the presence of a tumor in a mammal, said method comprising contacting a test sample of tissue cells obtained from said mammal with an antibody that specifically binds to the polypeptide shown in shown in SEQ ID NO:26 or the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, and detecting the formation of a complex between said antibody and a polypeptide in the test sample, wherein the formation of a complex is indicative of the presence of a tumor in said mammal.  
     
     
         43 . The method of  claim 42 , wherein said antibody is detectably labeled.  
     
     
         44 . The method of  claim 42 , wherein said test sample of tissue cells is obtained from an individual suspected of having a tumor.  
     
     
         45 . The method of  claim 42 , wherein the tumor is a breast tumor, lung tumor, colon tumor, rectal tumor, kidney tumor, ovarian tumor, pancreatic tumor, uterine tumor, bone tumor, skin tumor, bladder tumor, esophagus tumor, or soft tissue tumor.  
     
     
         46 . A method of detecting overexpression of a gene encoding a polypeptide comprising an amino acid sequence having at least 80% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10;    wherein the method comprises detecting the level of expression of the gene encoding said polypeptide in a cancer cell, wherein a higher level of expression of the gene encoding said polypeptide in the cancer cell, as compared to a control sample, indicates that the gene encoding said polypeptide is overexpressed.    
     
     
         47 . The method of  claim 46 , wherein detecting the level of expression of the gene encoding said polypeptide comprises employing an oligonucleotide in an in situ hybridization or RT-PCR analysis.  
     
     
         48 . The method of  claim 46 , wherein detecting the level of expression of the gene encoding said polypeptide comprises employing an antibody in an immunohistochemistry analysis.  
     
     
         49 . The method of  claim 46 , wherein the method comprises detecting overexpression of a gene encoding a polypeptide comprising an amino acid sequence having at least 95% amino acid sequence identity to: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         50 . The method of  claim 46 , wherein the method comprises detecting overexpression of a gene encoding a polypeptide comprising: 
 (a) the polypeptide shown in SEQ ID NO:26,    (b) the polypeptide shown in SEQ ID NO:26 lacking its associated signal peptide, or    (c) a polypeptide encoded by a nucleic acid comprising the nucleotide sequence shown in SEQ ID NO:10.    
     
     
         51 . The method of  claim 46 , wherein the cancer cell is a breast cancer cell, lung cancer cell, colon cancer cell, rectal cancer cell, kidney cancer cell, ovarian cancer cell, pancreatic cancer cell, uterine cancer cell, bone cancer cell, skin cancer cell, bladder cancer cell, esophagus cancer cell, or soft tissue cancer cell.  
     
     
         52 . The method of  claim 51 , wherein the cancer cell is a colon cancer cell.