Yuan Yuan, MD, PhD, is a breast medical oncologist and physician scientist who specializes in triple-negative breast cancer and breast cancer immunotherapy. She is the director of breast cancer disease research group and medical director for breast oncology at Cedars-Sinai Cancer. Her training includes a fellowship in hematology and medical oncology at New York University Medical Center and a rotation at Memorial Sloan Kettering Cancer Center in New York, received her medical degree in China and holds a PhD in biochemistry and molecular biology from the University of California, Riverside. Yuan’s research focus is triple-negative breast cancer, a fast-growing and often aggressive form of the disease.   To that end, Yuan’s research aims to expand the number of triple-negative breast cancer patients who can benefit from immune checkpoint inhibitors—a number that currently stands at just 30 percent. She and her team are testing a novel immunotherapy combination to turn “immune-cold” tumors, which cannot be penetrated by the body’s immune system, into “immune-hot” tumors that readily respond to immunotherapies.