Scientists just cracked the mystery of why cancer immunotherapy fails

Scientists at Ohio State University discovered why cancer immunotherapy often fails by identifying a hidden stress response called TexPSR that overwhelms T cells with misfolded proteins, similar to Alzheimer's plaques, causing these crucial immune cells to become "exhausted" and unable to fight tumors effectively. When researchers blocked this stress pathway in preclinical studies, exhausted T cells regained their cancer-fighting abilities, potentially opening new treatment approaches.