The major aim of this Program Project is to understand the molecular pathways that regulate cell growth and trigger specialized cell functions and to delineate how these pathways are altered in a cancer cell. The Program Project seeks to bring together individuals with expertise in cell biology, molecular biology, virology, immunology, biochemistry and pharmacology to address problems relating directly to the molecular biology of cellular signalling. Support is requested to continue the investigation of molecular biology of the signal transduction process with emphasis on the molecular interactions of mitogen, receptors, proto-oncogene products and how these interactions serve to mediate specific events in normal and malignant cells. In Project 1, Dr. Weber will analyze the interaction of the Rous sarcoma virus src protein with the EGF receptors. The Weber laboratory will study the effects of src activity on the synthesis, stability and function of these receptors. In project 2, Dr. J.T. Parsons will study the structure and function of the viral src protein and its non-oncogenic cellular homologue, pp60c-src. The Parsons laboratory will employ a repertoire of src mutants to define the interactions of the src protein with specific targets, the regulation of pp60c-src activity by cellular factors and will attempt to elucidate the precise role of pp60c in the signal transduction pathway. Project 3 (Dr. Garrison) will address the role of G-proteins in the coupling of cellular receptors, in particular the EGF receptor, to various second messenger pathways. The Garrison laboratory will study the role of toxin sensitive G- proteins in EGF receptor mediated signalling. These studies include the identification and cloning of the G-protein genes as well as a more thorough analysis of the regulation of the hepatocyte EGF receptor. In project 4, Dr. Bender will study the molecular mechanisms that regulate the transcriptional attenuation of the c-myb gene, including the identification of specific DNA sequences involved in attenuation and specific cellular factors that actively mediate attenuation. In project 5, Drs. Creutz and S. Parsons will study role of tyrosine protein kinases in secretion an exocytosis. The functional role of the src kinase in the events leading to secretion and the role of tyrosine kinase substrates in mediating molecular events leading to membrane fusion and secretion will be analyzed.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
2P01CA040042-04
Application #
3093764
Study Section
Cancer Special Program Advisory Committee (CAK)
Project Start
1985-09-30
Project End
1993-07-31
Budget Start
1988-09-30
Budget End
1989-07-31
Support Year
4
Fiscal Year
1988
Total Cost
Indirect Cost
Name
University of Virginia
Department
Type
Schools of Medicine
DUNS #
001910777
City
Charlottesville
State
VA
Country
United States
Zip Code
22904
Walters, Dustin M; Lindberg, James M; Adair, Sara J et al. (2013) Inhibition of the growth of patient-derived pancreatic cancer xenografts with the MEK inhibitor trametinib is augmented by combined treatment with the epidermal growth factor receptor/HER2 inhibitor lapatinib. Neoplasia 15:143-55
Guerrero, Michael S; Parsons, J Thomas; Bouton, Amy H (2012) Cas and NEDD9 Contribute to Tumor Progression through Dynamic Regulation of the Cytoskeleton. Genes Cancer 3:371-81
Owen, Katherine A; Abshire, Michelle Y; Tilghman, Robert W et al. (2011) FAK regulates intestinal epithelial cell survival and proliferation during mucosal wound healing. PLoS One 6:e23123
Ohama, Takashi; Brautigan, David L (2010) Endotoxin conditioning induces VCP/p97-mediated and inducible nitric-oxide synthase-dependent Tyr284 nitration in protein phosphatase 2A. J Biol Chem 285:8711-8
Hall, Emily H; Balsbaugh, Jeremy L; Rose, Kristie L et al. (2010) Comprehensive analysis of phosphorylation sites in Tensin1 reveals regulation by p38MAPK. Mol Cell Proteomics 9:2853-63
Slack-Davis, Jill K; Hershey, E Daniel; Theodorescu, Dan et al. (2009) Differential requirement for focal adhesion kinase signaling in cancer progression in the transgenic adenocarcinoma of mouse prostate model. Mol Cancer Ther 8:2470-7
Hall, Emily H; Daugherty, Abbi E; Choi, Colin K et al. (2009) Tensin1 requires protein phosphatase-1alpha in addition to RhoGAP DLC-1 to control cell polarization, migration, and invasion. J Biol Chem 284:34713-22
Molhoek, Kerrington R; McSkimming, Chantel C; Olson, Walter C et al. (2009) Apoptosis of CD4(+)CD25(high) T cells in response to Sirolimus requires activation of T cell receptor and is modulated by IL-2. Cancer Immunol Immunother 58:867-76
Tilghman, Robert W; Parsons, J Thomas (2008) Focal adhesion kinase as a regulator of cell tension in the progression of cancer. Semin Cancer Biol 18:45-52
Vomastek, Tomas; Iwanicki, Marcin P; Burack, W Richard et al. (2008) Extracellular signal-regulated kinase 2 (ERK2) phosphorylation sites and docking domain on the nuclear pore complex protein Tpr cooperatively regulate ERK2-Tpr interaction. Mol Cell Biol 28:6954-66

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