New CAR T-cell therapy shows promise against aggressive HER2+ breast cancer

One-third of HER2-positive (HER2+) tumors express the P95HER2 protein, which associates with an aggressive form of breast cancer with a poorer prognosis. Investigators of the Vall d’Hebron Institute of Oncology’s (VHIO) Growth Factors Group, in collaboration with researchers of the Cancer Research Program of Hospital del Mar Research Institute (HMRI), Barcelona, have developed novel chimeric antigen receptor (CAR) T-cell therapy that can produce a potent antitumor response against p95HER2-expressing cells.