James Waschek

Biography

Dr. Waschek is a Professor of Psychiatry and Biobehavioral Science at the David Geffen School of Medicine at the University of California at Los Angeles (UCLA), and is an expert in the molecular and cellular biology and physiological actions of neuropeptides. Dr. Waschek received a Ph.D. in Pharmaceutical Chemistry in 1984 from the University of California at San Francisco, after which he took a postdoctoral position at the National Institutes of Health (NIH). In 1988 he came to UCLA, where his research has centered on three broad, but related topics: 1) CNS development, degeneration, injury, and repair, 2) neuroinflammatory conditions such as multiple sclerosis, and maternal inflammation-induced perinatal white matter disease, and 3) brain tumor pathogenesis. A past and continuing objective has been to better understand the biological roles of neuropeptides in these processes, especially the two related peptides PACAP and VIP (pituitary adenylyl cyclase activating peptide and vasoactive intestinal peptide, respectively). A major contribution in this area was his discovery first reported in 1998 that PACAP and functional PACAP receptors are highly expressed in the murine neural tube and other germinal centers, and that PACAP acts in part via cAMP and protein kinase A to regulate neural patterning and proliferation via antagonism of hedgehog signaling. Using gene targeting and other approaches, he found this interaction to be relevant not only during brain development, but also in the pathogenesis of malignant pediatric brain tumors. In other work, he has demonstrated growth factor-like actions of PACAP in the maturation of white matter (myelin) and in axon regeneration after injury.

Research Interest

inflammatory responses after nerve injury and in other pathologies such as lung and liver injury, colitis, cystitis, viral infection, and in an animal model of multiple sclerosis.