Mohammad Rashidian, PhD

Lloyd J. Old STAR | Dana-Farber Cancer Institute

T cell therapies have shown enormous promise in cancer treatment, but they often fail against solid tumors. This is in part due to exhaustion:  T cells gradually lose their ability to persist, multiply, and continue attacking cancer, limiting long-term effectiveness.

Dr. Rashidian’s research centers on a newly discovered signaling system inside T cells that appears to control whether these immune cells remain strong and long-lasting or become exhausted. Early findings suggest this signaling hub coordinates multiple pathways that help T cells maintain stem-like qualities, survive longer, and sustain potent anti-tumor activity. This project will define how the signaling hub functions and why it enables T cells to resist exhaustion even within the hostile environment of solid tumors.

By understanding how durable T cell responses are naturally maintained, this work could guide the development of next-generation immunotherapies capable of producing longer-lasting anti-cancer responses.

Much like the original discovery of immune checkpoints transformed cancer therapy, this newly identified signaling pathway may open an entirely new therapeutic direction for overcoming T cell exhaustion and improving outcomes for patients with solid tumors.

Research Focus

Solid Tumors

Projects and Grants

Discovery of a signaling hub that unlocks durable, exhaustion-resistant anti-tumor T-cell immunity

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Mohammad Rashidian
Dana-Farber Cancer Institute
CRI Lloyd J. Old STAR
T cell exhaustion remains a major challenge. If we can understand how to potentially inhibit T cell exhaustion, or reverse that exhaustion, it can unlock a lot of potential for developing next-generation immunotherapeutics.

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