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![MayoClinic Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::14592723.png) Mayo Clinic [@MayoClinic](/creator/twitter/MayoClinic) on x 2M followers
Created: 2025-07-14 20:01:04 UTC

Mayo Clinic researchers have discovered a key reason some cancer patients relapse after receiving CAR-T cell therapy. Over time, the engineered immune cells age and lose their ability to fight cancer.  

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[Post Link](https://x.com/MayoClinic/status/1944849649631645785)