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Richard B. Silverman

Professor

B.S.: Pennsylvania State University 1968; Ph.D.: Harvard University 1974

Research Statement

The research in my group can be summarized as investigations of the molecular mechanisms of action, rational design, and syntheses of potential medicinal agents. The primary focus is basic research into central nervous system disorders, including Parkinson’s disease, cerebral palsy, amyotrophic lateral sclerosis, addiction, and epilepsy. Other therapeutic areas include cancer (melanoma and hepatocellular carcinoma), lysosomal storage diseases, such as Gaucher’s disease, and bacterial infection. Numerous drugs are known to function as specific inhibitors of particular enzymes. For some enzyme targets, where potent reversible inhibitors are desired, computer modeling based on X-ray crystal structures initiates the research (high-throughput screening also may be used). For enzyme targets where inactivators are desired and when little is known about the enzyme’s molecular mechanism of action, chemical model studies are designed to determine reasonable nonenzymatic pathways applicable to the enzyme. For those enzymes, mechanism-based inactivators are designed and synthesized and inactivation mechanisms investigated. The enzymes are isolated from either mammalian tissue or from overexpressed cells containing recombinant enzymes. Collaborations are developed in X-ray crystallography and preclinical studies.

Recent Publications

  • Cinelli, M. A.; Li, H.; Chreifi, G.; Poulos, T. L.; Silverman, R. B. Nitrile In The Hole: Discovery of a Small Auxiliary Pocket in Neuronal Nitric Oxide Synthase Leading to the Development of Potent and Selective 2-Aminoquinoline Inhibitors. J. Med. Chem., 2017, 60(9), 3958-3978.
  • Zheng, J.; Chen, L.; Schwake, M.; Silverman, R. B.; Krainc, D. Design and synthesis of potent quinazolines as selective b-glucocerebrosidase modulators. J. Med. Chem. 2016, 59, 8508-8520.
  • Zigmond, E.; Ya'acov, A. B.; Lee, H.; Lichtenstein, Y.; Shalev, Z.; Smith, Y.; Zolotarov, L.; Ziv, E.; Kalman, R.; Le, H. V.; Lu, H.; Silverman, R. B.; Ilan, Y. Suppression of hepatocellular carcinoma by inhibition of overexpressed ornithine aminotransferase. ACS Med. Chem. Lett. 2015, 6, 840-844.
  • Le, H. V.; Hawker, D. D.; Wu, R.; Doud, E.; Widom, J.; Sanishvili, R.; Liu, D.; Kelleher, N. L.; Silverman, R. B. Design and mechanism of tetrahydrothiophene-based GABA aminotransferase inactivators. J. Am. Chem. Soc. 2015, 137, 4525-4533.
  • Lee, H.; Doud, E. H.; Wu, R.; Sanishvili, R.; Juncosa, J. I.; Liu, D.; Kelleher, N. L.; Silverman, R. B. Mechanism of inactivation of g-aminobutyric acid aminotransferase by (1S,3S)-3-amino-4-difluoromethylenyl-1-cyclopentanoic acid (CPP-115). J. Am. Chem. Soc. 2015, 137, 2628-2640.
  • Trippier, P. C.; Zhao, K. T.; Fox, S. G.; Schiefer, I. T.; Benmohamed, R.; Moran, J.; Kirsch, D. R.; Morimoto, R. I.; Silverman, R. B. Proteasome Activation is a Mechanism for Pyrazolone Small Molecules Displaying Therapeutic Potential in Amyotrophic Lateral Sclerosis. ACS Chem. Neurosci. 2014, 5, 823-829.

Selected Honors/Awards

  • 2017 Creative Invention Award of the American Chemical Society
  • 2014 Fellow of the National Academy of Inventors
  • 2014 Northwestern University Trustee Medal for Faculty Innovation and Entrepreneurship
  • 2014 iCON Innovator Award (iBIO Institute)
  • 2014 Elected to American Academy of Arts & Sciences
  • 2014 Excellence in Medicinal Chemistry Prize of the Israel Chemical Society
  • 2013 Fellow of the Royal Society of Chemistry (UK)
  • 2013 Centenary Prize of the Royal Society of Chemistry
  • 2013 Bristol-Myers Squibb-Edward E. Smissman Award of the American Chemical Society
  • 2013 Roland T. Lakey Award from Wayne State University
  • 2012 Sato Memorial International Award of the Pharmaceutical Society of Japan
  • 2011 Fellow of the American Chemical Society
  • 2011 E. B. Hershberg Award for Important Discoveries in Medicinally Active Substances of the ACS
  • 2011 Alumni Hall of Fame, Central High School of Central High School of Philadelphia
  • 2009 Medicinal Chemistry Hall of Fame of the American Chemical Society
  • 2009 Perkin Medal, Society of Chemical Industry
  • 2008 Alumni Fellow Award, Pennsylvania State University
  • 2003 Arthur C. Cope Senior Scholar Award of the American Chemical Society
  • 1990 Fellow of the American Association for the Advancement of Science
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