For five decades, the University of California, San Francisco (UCSF) has played a significant role in medical research, with six faculty members earning Nobel Prizes in physiology or medicine since 1901. This achievement places UCSF among the leading U.S. medical schools for Nobel recognition.
David Julius, Ph.D., a professor of physiology at UCSF, received the 2021 Nobel Prize for his work on how humans sense pain, heat, and touch. By studying substances such as tarantula toxins and capsaicin from chili peppers, Julius identified a family of proteins essential to sensory pathways in the nervous system. “Science is a lot like real estate: It’s about location, location, location,” said Julius after receiving his award. His research has advanced understanding of pain at the molecular level and supports efforts to develop safer pain treatments.
Shinya Yamanaka, M.D., Ph.D., an anatomy professor at UCSF, was recognized for discovering how mature cells can be reprogrammed into pluripotent stem cells by introducing specific genes. This finding allows mature cells to regain their ability to become various cell types and has opened new avenues for disease research and therapy development.
Elizabeth Blackburn, Ph.D., professor of biochemistry and biophysics at UCSF, discovered that chromosomes have protective end caps called telomeres. Her work showed that telomeres protect genetic information during cell division but shorten over time as cells age. The study of telomeres now contributes to cancer research and aging science.
Stanley Prusiner, M.D., a neurology professor at UCSF, identified prions—infectious proteins responsible for diseases such as Kuru and Creutzfeldt–Jakob disease—in 1982. Prusiner’s discovery revealed that misfolded proteins could cause neurodegenerative diseases by inducing other proteins to misfold as well.
Former UCSF Chancellor J. Michael Bishop and Harold E. Varmus made discoveries about the origins of cancer by identifying oncogenes—mutated genes capable of causing cancer—in normal cells. Their work demonstrated that certain cancers are linked to genetic mutations within healthy cells rather than external factors alone. This led to targeted therapies such as Herceptin for breast cancer patients.
These achievements reflect UCSF’s ongoing contributions to scientific knowledge and its impact on medicine worldwide.



