Tumor specific anitbodies and uses therefor

Abstract

Provided are isolated antibodies, and fragments and derivatives thereof, which bind to tumor antigens. Also provided are compositions and delivery agents that include the disclosed antibodies and fragments and derivatives thereof; cells that produce the same; methods for producing the same; methods of using the same for detecting, targeting, and/or treating tumors and/or metastatic cells derived therefrom and/or tumor stem cells; and methods for predicting the recurrence of cancer in a subject.

What is claimed is: 
     
         1 . An isolated antibody, or a fragment or derivative thereof, that binds to SEQ ID NO: 4. 
     
     
         2 . The isolated antibody, fragment, or derivative of  claim 1 , wherein the isolated antibody, or fragment or derivative thereof is monoclonal. 
     
     
         3 . The isolated antibody, fragment, or derivative of  claim 1 , which is selected from the group consisting of monoclonal antibody TAB-004, a chimeric derivative thereof, a humanized derivative thereof, a single chain derivative thereof, a Fab fragment thereof, an F(ab′) 2  fragment thereof, an Fv fragment thereof, and an Fab′ fragment thereof, wherein the chimeric derivative, the humanized derivative, the single chain derivative, the Fab fragment thereof, the F(ab′) 2  fragment thereof, the Fv fragment thereof, or the Fab′ fragment thereof binds to SEQ ID NO: 4. 
     
     
         4 . A composition comprising a pharmaceutically acceptable carrier and the antibody, fragment, or derivative of  claim 1 . 
     
     
         5 . The composition of  claim 4 , wherein the active agent is selected from the group consisting of a radioactive molecule, a radionuclide, a sensitizer molecule, an imaging reagent, a radioisotope, a toxin, a cytotoxin, an anti-tumor agent, a chemotherapeutic agent, an immunomodulator, a cytokine, a reporter group, and combinations thereof. 
     
     
         6 . The composition of  claim 5 , wherein the immunomodulator is selected from the group consisting of an indoleamine 2,3-dioxygenase (IDO) inhibitor, an EP2/EP4 receptor antagonist, a CXCR4 antagonist, a vascular endothelial growth factor receptor 1 antagonist, Celebrex, a TGFβR1 antagonist, and a dendritic cell activator. 
     
     
         7 . A method for detecting a cancer cell in a subject, comprising:
 (a) administering to the subject a composition comprising an isolated antibody, or a fragment or derivative thereof, that binds to SEQ ID NO: 4, conjugated to a detectable label; and   (b) detecting the detectable label,   whereby a cancer cell in the subject is detected.   
     
     
         8 . The method of  claim 7 , wherein the cancer cell is present in a tumor of the pancreas, breast, ovary, colon, or rectum, and/or is a metastatic cell derived therefrom. 
     
     
         9 . A method for suppressing tumor growth in a subject, the method comprising administering to a subject bearing a tumor an effective amount of the antibody, fragment, or derivative of  claim 1 . 
     
     
         10 . The method of  claim 9 , wherein the tumor is a tumor of the pancreas, breast, ovary, colon, or rectum, or is a metastatic cell derived therefrom. 
     
     
         11 . The method of  claim 9 , further comprising administering to the subject one or more additional anti-tumor treatments. 
     
     
         12 . The method of  claim 11 , wherein the one or more additional anti-tumor treatments comprise an anti-inflammatory therapy comprising administering to the subject a non-specific cyclooxygenase inhibitor, a cyclooxygenase-2-specific inhibitor, or a combination thereof. 
     
     
         13 . The method of  claim 11 , wherein the one or more additional anti-tumor therapies comprise administering one or more of 4-amino-1-(2-deoxy-2,2-difluoro-β-D-erythro-pentofuranosyl)pyrimidin-2(1H)-on-2′,2′-difluoro-2′-deoxycytidine (gemcitabine), 4-[5-(4-methylphenyl)-3-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide (celecoxib), and pharmaceutically acceptable salts thereof to the subject. 
     
     
         14 . A method for targeting an active agent to a cancer cell in a subject, the method comprising contacting the cancer cell with a composition comprising an antibody, or a fragment or derivative thereof, that binds to SEQ ID NO: 4. 
     
     
         15 . The method of  claim 14 , wherein the cancer cell is selected from the group consisting of a tumor cell, a cancer stem cell, and a circulating cancer stem cell. 
     
     
         16 . The method of  claim 14 , wherein the cancer cell is present in blood, a lymph node, lymph fluid, bone marrow, a solid tumor, or combinations thereof in the subject or isolated from the subject. 
     
     
         17 . The method of  claim 14 , wherein the composition comprises an active agent, and further wherein the active agent comprises a therapeutic agent, a chemotherapeutic agent, an immunomodulator, a toxin, a radiotherapeutic agent, or a combination thereof. 
     
     
         18 . The method of  claim 17 , wherein the immunomodulator is selected from the group consisting of an indoleamine 2,3-dioxygenase (IDO) inhibitor, an EP2/EP4 receptor antagonist, a CXCR4 antagonist, a vascular endothelial growth factor receptor 1 antagonist, Celebrex, a TGFβR1 antagonist, and a dendritic cell activator. 
     
     
         19 . The method of  claim 18 , wherein the IDO inhibitor comprises 1-methyl-DL-tryptophan (1MT) or the dendritic cell activator comprises CpG oligodeoxynucleotides (CpG ODN).