The American Brain Tumor Association (ABTA) is proud to recognize Darwin Kwok, PhD, current medical student at University of California, San Francisco (UCSF), as a recipient of the ABTA Rubinstein Award, honoring exceptional promise in brain tumor research. Dr. Kwok’s work—and the mentorship that helped shape it—reflects the kind of creativity, collaboration, and patient-centered science that drives meaningful progress for people facing brain tumors.
Dr. Kwok’s journey into medicine and research is deeply personal. He grew up surrounded by science—his mother was a physician who later became a full-time researcher—but his path crystallized during college, when his father was diagnosed with a vestibular schwannoma, a type of brain tumor. Watching his family navigate diagnosis, treatment, and recovery inspired Dr. Kwok to better understand brain tumors and help develop new treatment options. That experience led him to pursue a PhD at UCSF, where he trained under the mentorship of Dr. Hideho Okada and Dr. Joseph Costello.
During his doctoral training, Dr. Kwok focused on uncovering new ways the immune system might recognize and attack brain tumors. His research led to the discovery of a newly identified group of shared tumor-specific targets, created by errors in how tumor cells process genetic information. This work, recently published in Nature, helps open new doors for personalized immunotherapies—treatments designed to help the body’s own immune system better recognize cancer cells. For Dr. Kwok, the science has always been closely connected to patients. He worked directly with families affected by glioma and collaborated on designing experimental vaccines tailored to individual tumors during his PhD and these experiences reinforced his commitment to medicine and led him to pursue a medical degree after finishing his PhD.
Dr. Kwok’s research has found that standard treatments like chemotherapy and radiation don’t just kill brain tumor cells—they also change how the tumor makes its proteins, creating new targets that aren’t found in healthy brain tissue. They found that some of these new targets show up again when tumors return, are shared across patients, and can be recognized by the immune system. This means treatment itself may help create new opportunities for immunotherapy, especially at recurrence, when patients often have the fewest options.
Dr. Okada describes Dr. Kwok as an exceptional mentee known for his creativity, energy, and collaborative nature. Dr. Kwok consistently generates innovative ideas grounded in the latest science, actively mentors junior students, and brings people together to strengthen team-based brain tumor research. Supported by the ABTA Medical Student Summer Fellowship and the Rubinstein Award, he gained protected time to focus on translating discoveries into real, accessible treatments for patients. As an aspiring physician-scientist, Dr. Kwok aims to bridge research and patient care, and he encourages other students to dream big, stay patient-focused, and persevere through challenges—because each step forward helps move the field closer to better outcomes.
