Yan Leyfman
Zihai Li and Yan Leyfman

Yan Leyfman: Dr. Zihai Li Identifies Tex-PSR as Key Driver of T Cell Exhaustion

Yan Leyfman, Medical Oncologist, Co-Founder and Executive Director of MedNews Week, shared a post on LinkedIn:

“Pioneering work led by Dr. Zihai Li, MD, PhD and the team at The Ohio State University College of Medicine uncovers a new hallmark of T cell exhaustion – the proteotoxic stress response (Tex-PSR).

  •  Tex-PSR is marked by increased protein translation, protein aggregation, and stress responses that drive T cell dysfunction in chronic infections and cancer.
  •  Targeting these proteostasis pathways improved cancer immunotherapy responses in preclinical models.
  •  High Tex-PSR levels in patient T cells were linked to poor clinical outcomes.

This discovery opens the door to new strategies for overcoming T cell exhaustion and boosting the effectiveness of immunotherapies.”

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