Cancer biologists bring in the B-cell reinforcements for immunotherapy

Cancer is the second-leading cause of death in the United States, according to a 2026 Cancer Research Institute report. Cancer biologists are keenly aware of this statistic, as it drives innovations that revolutionize cancer care—innovations like immunotherapy. Immunotherapy fights cancer using the body's own immune system, often by boosting the performance of specialized adaptive immune cells called T cells.

Yet not all patients benefit from standard-of-care T cell immunotherapies. Salk Institute scientist Daniel Hollern wants to change that—and he thinks B cells offer new pathways to enhance the immune system’s attack on cancer cells. Hollern’s lab is working to close the research gap that has shrouded B cells in mystery and prevented them from reaching their full clinical potential.

His latest study, published in Cell Reports, reveals that B cells play a multifaceted role in promoting T cell antitumor activity.

The study is the first to show that B cells can regulate killer T cell function, prompting a slew of new questions about how these interactions work. The insights lay the foundation for harnessing B cells in immunotherapy, which has the potential to radically change the future of cancer care.

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