Owen Witte

Owen Witte (born May 17, 1949) is an American physician-scientist at the University of California, Los Angeles. He is a distinguished professor of microbiology, immunology and molecular genetics in the David Geffen School of Medicine at UCLA, founding director of the UCLA Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, and the UC Regents’ David Saxon Presidential Chair in developmental immunology (1989–present).[1] Witte is also a Howard Hughes Medical Institute investigator (1986–present) and a member of the President’s Cancer Panel (2012 to present).[2]

Owen Witte M.D.
Born (1949-05-17) May 17, 1949
Brooklyn, New York, US
NationalityUnited States
Alma materCornell University (B.S.) Stanford University School of Medicine (M.D.)
Websitewww.stemcell.ucla.edu/member/witte

Witte's research has contributed to the understanding of human leukemias, immune disorders and stem cell activity in cancers of the epithelium. His discovery of the tyrosine kinase activity in the ABL1 protein[3] and the demonstration of the BCR-ABL oncoproteins in leukemias[4] was one of the preclinical discoveries that led to the development of Gleevec, the first targeted therapy for chronic myelogenous leukemia.[1]

Witte also co-discovered the gene for Bruton's tyrosine kinase,[5] a protein essential for normal B-lymphocyte development that, when mutated, causes the onset of X-linked agammaglobulinemia.[6] This finding influenced the development of targeted drugs like Ibrutinib to treat leukemia and lymphoma.[1]

Witte’s current research focuses on characterizing the stem cells for epithelial cancers of the prostate and other organs in order to define new and more targeted therapies.[7][8] Using tissue modeling techniques, Witte discovered the prostate stem cell antigen that is up-regulated in prostate cancer,[9] identified the human prostate stem cell population[10] and determined that the protein N-Myc, which is produced by the gene MYCN, leads to the development of aggressive neuroendocrine prostate cancer tumors.[11]

Education

Witte earned his B.S. degree in microbiology from Cornell University in 1971. He earned his M.D. degree from Stanford University in 1976, specializing in molecular virology, immunology and medicine.

He completed his predoctoral fellowship in the laboratory of Irving Weissman (Stanford University; 1971 to 1976) and his postdoctoral fellowship in the laboratory of Nobel laureate Dr. David Baltimore (MIT; 1976 to 1980).[1]

Awards
  • 1990 Milken Family Medical Foundation Award in Basic Cancer Research
  • 1991 Richard and Hinda Rosenthal Foundation Award of the American Association for Cancer Research
  • 1993 William Dameshek Prize, American Society of Hematology
  • 1996 Elected fellow of the American Academy of Arts and Sciences
  • 1997 Elected member of the National Academy of Sciences
  • 2000 Warren Alpert Foundation Prize
  • 2003 Elected member of the Institute of Medicine
  • 2003 Leukemia and Lymphoma Society’s de Villiers International Achievement Award
  • 2009 Cotlove Award, Academy of Clinical Laboratory Physicians & Scientists
  • 2012-2017 Appointed member of the President’s Cancer Panel
  • 2014 Elected Fellow of the American Association for Cancer Research Academy
  • 2014 The Rowley Prize awarded by the Intl Chronic Myeloid Leukemia Foundation
  • 2015 American Association for Cancer Research G.H.A. Clowes Memorial Award [1][8][12][13]
  • 2016 University Professor by University of California Regents[14]

References
  1. Vogt-James, Mirabai (August 3, 2015). "The 2015 AQACR Clowes Memorial Award for Outstanding Achievement in Basic Cancer Research". Cancer Immunology Research. 3 (8): 846–848. doi:10.1158/2326-6066.CIR-15-0142. PMID 26242762.
  2. "President's Cancer Panel".
  3. Witte ON, Dasgupta A, Baltimore D (February 28, 1980). "Abelson murine leukemia virus protein is phosphorylated in vitro to form phosphotyrosine". Nature. 283 (5750): 826–3l. Bibcode:1980Natur.283..826W. doi:10.1038/283826a0. PMID 6244493. S2CID 4239008.
  4. Konopka JB, Watanabe SM, Witte ON (July 1984). "An alteration of the human c-abl protein in K562 leukemia cells unmasks associated tyrosine kinase activity" (PDF). Cell. 37 (3): 1035–42. doi:10.1016/0092-8674(84)90438-0. PMID 6204766. S2CID 34525263.
  5. Tsukada S; Saffran DC; Rawlings DJ; Parolini O; Allen RC; Klisak I; et al. (January 29, 1993). "Deficient expression of a B-cell cytoplasmic tyrosine kinase in human X-linked agammaglobulinemia". Cell. 72 (2): 279–90. doi:10.1016/0092-8674(93)90667-f. PMID 8425221. S2CID 32339052.
  6. Rawlings DJ; Scharenberg AM; Park H; Wahl MI; Lin S; Kato RM; et al. (February 9, 1996). "Activation of Btk by a phosphorylation mechanism initiated by src family kinases". Science. 271 (5250): 822–5. Bibcode:1996Sci...271..822R. doi:10.1126/science.271.5250.822. PMID 8629002. S2CID 42666246.
  7. "SU2C Scientific Research Teams, Owen N. Witte, M.D." Stand Up To Cancer.
  8. "Owen N. Witte, MD | Class of 2014". American Association for Cancer Research.
  9. Reiter, R.E.; Gu, Z.; Watabe, T.; Thomas, G.; Szigeti, K.; Davis, E.; Wahl, M.; Nisitani, S.; Yamashiro, J.; Le Beau, M.M.; Loda, M.; Witte, O.N. (February 17, 1998). "Prostate stem cell antigen: A cell surface marker overexpressed in prostate cancer". Proceedings of the National Academy of Sciences. 95 (4): 1735–40. Bibcode:1998PNAS...95.1735R. doi:10.1073/pnas.95.4.1735. PMC 19171. PMID 9465086.
  10. Goldstein, A.S.; Huang, J.; Guo, C.; Garraway, I.P.; Witte, O.N. (July 30, 2010). "Identification of a cell-of-origin for human prostate cancer". Science. 329 (5991): 568–71. Bibcode:2010Sci...329..568G. doi:10.1126/science.1189992. PMC 2917982. PMID 20671189.
  11. Lee JK, Phillips JW, Smith BA, Park JW, Stoyanova T, Clark PM, Baertsch R, Sokolov A, Meyerowitz JG, Mathis C, Cheng D, Stuart JM, Gustafson WC, Huang J, Witte ON (April 11, 2016). "N-Myc drives small cell neuroendocrine carcinoma initiated from human prostate epithelial cells". Cancer Cell. 29 (4): 536–547. doi:10.1016/j.ccell.2016.03.001. PMC 4829466. PMID 27050099.
  12. "American Association of Cancer Research". AACR.org.
  13. "The 2014 Rowley Prize is awarded to Dr Owen N. Witte". cml-foundation.org.
  14. Vogt-James, Mirabai. "UC regents appoint Dr. Owen Witte University Professor". UCLA Newsroom.
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