This proposal describes plans for the continuation of a comprehensive research program involving synthesis, mechanistic/mode of action, biological, and computer modeling studies directed at understanding the molecular basis of tumor promotion (a human health problem), the regulation and biochemistry of protein kinase C (a novel target for new drug development), the rational design of cancer chemotherapeutic agents based on protein kinase C, and more generally of molecules of interest in cancer and medicinal research. Five projects are proposed for investigation. A major continuation study will be directed at the synthesis of phorbol and ingenol analogues, the most potent tumor promoters known, and at an investigation of the structural basis for their tumor promoting activity. A second major project is directed at the synthesis and biochemical mode of action of resiniferatoxin, one of the most potent irritants known, an exciting probe for the study of neuronal receptors, and a lead for the development of new drugs for relief of neuralgic pain. A third major study involves efforts directed at the synthesis and biochemical mode of action of calphostin, a new, light-activatable phorbol ester antagonist and a potential lead for the development of new anti-AIDS drugs. A fourth major project is focussed on cyclic diacyl glycerols (cDAGs), a new family of potent PKC activators, on the synthesis of new metabolically stable cDAG analogues, and on the investigation of how lipid structure in these and other molecules functioning at lipid bilayers affects the affinity and selectivity of PKC isozyme recognition. A final major project seeks to define the tertiary structure of the regulatory domain of PKC through the use of photoaffinity labeling, synthesis, computer modeling, and NMR studies. Overall, this research program is expected to be of significant value in chemistry, biology, and medicine.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Method to Extend Research in Time (MERIT) Award (R37)
Project #
2R37CA031841-13
Application #
3482238
Study Section
Medicinal Chemistry Study Section (MCHA)
Project Start
1981-07-01
Project End
1998-05-31
Budget Start
1993-06-01
Budget End
1994-05-31
Support Year
13
Fiscal Year
1993
Total Cost
Indirect Cost
Name
Stanford University
Department
Type
Schools of Arts and Sciences
DUNS #
800771545
City
Stanford
State
CA
Country
United States
Zip Code
94305
McKinlay, Colin J; Benner, Nancy L; Haabeth, Ole A et al. (2018) Enhanced mRNA delivery into lymphocytes enabled by lipid-varied libraries of charge-altering releasable transporters. Proc Natl Acad Sci U S A 115:E5859-E5866
Haabeth, Ole A W; Blake, Timothy R; McKinlay, Colin J et al. (2018) mRNA vaccination with charge-altering releasable transporters elicits human T cell responses and cures established tumors in mice. Proc Natl Acad Sci U S A 115:E9153-E9161
Khan, Tapan K; Wender, Paul A; Alkon, Daniel L (2018) Bryostatin and its synthetic analog, picolog rescue dermal fibroblasts from prolonged stress and contribute to survival and rejuvenation of human skin equivalents. J Cell Physiol 233:1523-1534
Marsden, Matthew D; Wu, Xiaomeng; Navab, Sara M et al. (2018) Characterization of designed, synthetically accessible bryostatin analog HIV latency reversing agents. Virology 520:83-93
Ryckbosch, Steven M; Wender, Paul A; Pande, Vijay S (2017) Molecular dynamics simulations reveal ligand-controlled positioning of a peripheral protein complex in membranes. Nat Commun 8:6
McKinlay, Colin J; Vargas, Jessica R; Blake, Timothy R et al. (2017) Charge-altering releasable transporters (CARTs) for the delivery and release of mRNA in living animals. Proc Natl Acad Sci U S A 114:E448-E456
Staveness, Daryl; Abdelnabi, Rana; Near, Katherine E et al. (2016) Inhibition of Chikungunya Virus-Induced Cell Death by Salicylate-Derived Bryostatin Analogues Provides Additional Evidence for a PKC-Independent Pathway. J Nat Prod 79:680-4
Pavlovic, Igor; Thakor, Divyeshsinh T; Vargas, Jessica R et al. (2016) Cellular delivery and photochemical release of a caged inositol-pyrophosphate induces PH-domain translocation in cellulo. Nat Commun 7:10622
Hsu, Hsiao-Tieh; Trantow, Brian M; Waymouth, Robert M et al. (2016) Bioorthogonal Catalysis: A General Method To Evaluate Metal-Catalyzed Reactions in Real Time in Living Systems Using a Cellular Luciferase Reporter System. Bioconjug Chem 27:376-82
McKinlay, Colin J; Waymouth, Robert M; Wender, Paul A (2016) Cell-Penetrating, Guanidinium-Rich Oligophosphoesters: Effective and Versatile Molecular Transporters for Drug and Probe Delivery. J Am Chem Soc 138:3510-7

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