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Research Areas

FYN in prostate cancer


FYN is one of the 9 Src-kinases that is particularly upregulated in prostate cancer. Our studies to date have shown that Fyn appears to regulate growth, but to a great extent it appears to regulate directional movement; our lab continues to investigate the means through which this regulation occurs. We are attempting to develop therapies based on FYN inhibition in prostate cancer.

Biology of circulating tumor cells (CTCs)


CTCs are tumor cells shed into the circulation from primary or metastatic tumors. We suspect these cells contain valuable information on the underlying malignant process, and we have been working in collaboration with other scientists to understand this biology. To this end, we have imported next-generation isolation techniques for live CTCs and are employing the latest molecular characterization tools to identify genetic and proteomic information in these cells that may guide therapeutic decision-making.

This research has been funded by:


  • National Cancer Institute
  • Department of Defense
  • Prostate Cancer Foundation
  • St. Anthony Fund for Prostate Cancer Research and Discovery
  • Janice McKinnon Memorial Fund for Neuroendocrine Prostate Cancer Research
  • Michael and Patricia Berns Charitable Fund
  • Steven Spielberg Discovery Fund in Prostate Cancer Research
  • Margaret E. Early Trust
  • Linda Tallen & David Paul Kane Foundation

Contact the Posadas Lab

8700 Beverly Blvd.
Davis Building, Room 5094C
Los Angeles, CA 90048