title: Modeling resistance to pathway-targeted therapy in ovarian cancer.
abstract: A detailed understanding of the biochemical pathways that are responsible for cancer initiation and maintenance is critical to designing targeted cancer therapy. Although we have accumulated knowledge about individual molecular changes that underlie cancer development, we are still learning how multiple biochemical pathways cooperate in cancer. This cooperation and cross-talk between redundant biochemical pathways appear to be the main reasons for the failure of therapeutic agents that are designed to interfere with a specific molecular target. In order to simulate the cooperation of several biochemical pathways in cancer development, we have engineered mouse ovarian cancer cell lines and tumors with different combinations of defined genetic alterations. We have used this system to determine the functional contributions of individual pathways that are necessary for cell proliferation and tumor maintenance, as well as to test the molecular mechanisms of tumor resistance to pathway-targeted therapy.
authors.affiliation: Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA. dxing@partners.org
authors.forename: Deyin
authors.initials: D
authors.lastname: Xing
authors.forename: Sandra
authors.initials: S
authors.lastname: Orsulic
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000378:metabolism; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology; D001671:Biochemistry / Q000379:methods; D018797:Cell Cycle Proteins; D002460:Cell Line; D045744:Cell Line, Tumor; D019008:Drug Resistance, Neoplasm; D004791:Enzyme Inhibitors / Q000494:pharmacology; D039561:Eukaryotic Initiation Factor-4E / Q000378:metabolism; D005260:Female; D006801:Humans; D051379:Mice; D008954:Models, Biological; D008962:Models, Theoretical; D010051:Ovarian Neoplasms / Q000188:drug therapy* / Q000473:pathology; D010750:Phosphoproteins / Q000378:metabolism; D011494:Protein Kinases / Q000378:metabolism; D058570:TOR Serine-Threonine Kinases
chemical_list: D048868:Adaptor Proteins, Signal Transducing; D000970:Antineoplastic Agents; D018797:Cell Cycle Proteins; C087000:EIF4EBP1 protein, human; D004791:Enzyme Inhibitors; D039561:Eukaryotic Initiation Factor-4E; D010750:Phosphoproteins; D011494:Protein Kinases; C546842:MTOR protein, human; C546843:mTOR protein, mouse; D058570:TOR Serine-Threonine Kinases