Abstract: In one embodiment, the invention provides a method of treating a subject who suffers from a neoplasm (including a cancer such as a radiotherapeutic-resistant cancer) by administering to the subject a therapeutically effective amount of (a) 5-formyl-2?-deoxyuridine (fdU or foUdR) or a 5-formyl-2?-deoxyuridine derivative, optionally in combination with 5-hydroxy-2?-deoxyuridine (hUdR); and (b) at least one composition selected from the group consisting of either 5-fluorouracil (5-FU), a 5-FU prodrug (e.g. 5-fluoro-2?-deoxyuridine (FdU)) or 5-FU metabolite. In a preferred embodiment, a subject who suffers from colorectal cancer (CRC) or metastatic colorectal cancer (mCRC) is treated with a therapeutically-effective amount of fdU and either 5-FU or the 5-FU prodrug 5-fluoro-2?-deoxyuridine (FdU). Related pharmaceutical compositions are also provided.

Abstract: In one embodiment, the invention provides a method of treating a subject who suffers from a neoplasm (including a cancer such as a radiotherapeutic-resistant cancer) by administering to the subject a therapeutically effective amount of (a) 5-formyl-2?-deoxyuridine (fdU or foUdR) or a 5-formyl-2?-deoxyuridine derivative, optionally in combination with 5-hydroxy-2?-deoxyuridine (hUdR); and (b) at least one composition selected from the group consisting of either 5-fluorouracil (5-FU), a 5-FU prodrug (e.g. 5-fluoro-2?-deoxyuridine (FdU)) or 5-FU metabolite. In a preferred embodiment, a subject who suffers from colorectal cancer (CRC) or metastatic colorectal cancer (mCRC) is treated with a therapeutically-effective amount of fdU and either 5-FU or the 5-FU prodrug 5-fluoro-2?-deoxyuridine (FdU). Related pharmaceutical compositions are also provided.

Abstract: In one embodiment, the invention provides a method of treating a subject suffering from a breast cancer tumor which is non-responsive or intrinsically resistant to anti-estrogen therapy comprising administering a therapeutically effective amount of an inhibitor of alternative (ALT) non-homologous end joining (NHEJ) factor to the subject. In another embodiment the invention provides a method of treating a subject who suffers from a pancreatic cancer which is non-responsive to chemotherapy and/or radiation comprising co-administering a therapeutically effective amount of PARP1 inhibitor and a DNA ligase III? inhibitor to the subject. Related diagnostic methods, nucleic acid arrays, devices and kits are also provided.

Abstract: In one embodiment, the invention provides a method of treating a subject suffering from a breast cancer tumor which is non-responsive or intrinsically resistant to anti-estrogen therapy comprising administering a therapeutically effective amount of an inhibitor of alternative (ALT) non-homologous end joining (NHEJ) factor to the subject. In another embodiment the invention provides a method of treating a subject who suffers from a pancreatic cancer which is non-responsive to chemotherapy and/or radiation comprising co-administering a therapeutically effective amount of PARP1 inhibitor and a DNA ligase III? inhibitor to the subject. Related diagnostic methods, nucleic acid arrays, devices and kits are also provided.

Abstract: In one embodiment, the invention provides a method of treating a subject suffering from a breast cancer tumor which is non-responsive or intrinsically resistant to anti-estrogen therapy comprising administering a therapeutically effective amount of an inhibitor of alternative (ALT) non-homologous end joining (NHEJ) factor to the subject. In another embodiment the invention provides a method of treating a subject who suffers from a pancreatic cancer which is non-responsive to chemotherapy and/or radiation comprising co-administering a therapeutically effective amount of PARP1 inhibitor and a DNA ligase III? inhibitor to the subject. Related diagnostic methods, nucleic acid arrays, devices and kits are also provided.