UCSF is combatting treatment resistant metastatic urothelial carcinoma

Sept. 10, 2025

The University of California, San Francisco (UCSF) announced in a press release that they are working to combat treatment resistant metastatic urothelial carcinoma (mUC) and improve those patients’ quality of life and longevity.

The scientists used a CAR T cell therapy they created and mixed it with the diabetes treatment “thiazolidinediones.” The goal of this action was to “enhance NECTIN4 expression and make tumor cells more susceptible to NECTIN4-CAR T therapy.”

The treatment showed favorable results, which are reported in Nature Communications. The authors said, “Our strategy of repurposing rosiglitazone to prime NECTIN4 expression across a population of tumor cells with low to moderate expression significantly enhanced anti-tumor activity of NECTIN4-targeting CAR T therapy. Importantly, our strategy utilizes a transient pulse of rosiglitazone prior to CAR T administration, limiting the potential toxicities of long-term PPARγ agonist use (i.e., edema and cardiotoxicity).”

About the Author

Erin Brady

Managing Editor

Erin Brady is Managing Editor of Medical Laboratory Observer.

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