277 SynNotch-CAR T cells demonstrate potent anti-tumor efficacy in a preclinical immunocompetent mouse model for glioblastoma by Yuan Wang, Hideho Okada, Wendell Lim, Tiffany Chen, Takahide Nejo, Akane Yamamichi, Su Phyu, Senthilnath Lakshmanachetty, Payal Watchmaker, Milos Simic, Chanelle Shepherd, Jason Duecker, Olga Troyanskaya, Lia Cardarelli, Sachdev Sidhu