Jerry L MuCullough, Ph.D., is the Chairman of the Department of Dermatology at the University of California, Irvine where he has been Director of Dermatology Research and Immunofluorescence Laboratories since 1979. Dr. McCullough is also a pioneer in the field of Dermatopharmacology. His major focus of research has been on studies relating to the basic pathophysiology of psoriasis and other hyperproliferative skin diseases. His work on in vitro and in vivo models has resulted in the development of topical drug formulations for psoriasis, including methotrexate and hematoporphyrin derivative. The many patents that the University of California has filed on his behalf, each involving new therapies for skin disorders, exemplify the relevance of his research productivity. Dr. McCullough received his Ph.D. in pharmacology at Yale University.