Synthetic Biology and Biomaterials Strategies to Deceive the Tumor Microenvironment in CAR-T Immunotherapy.

Chimeric antigen receptor (CAR)-T cell immunotherapy has emerged as a groundbreaking approach in cancer treatment, offering new hope across various malignancies. However, its success against solid tumors remains limited due to critical challenges, including off-tumor, on-target toxicity, immune resistance, poor T cell infiltration into the tumor microenvironment (TME), and T cell exhaustion. In response, interdisciplinary innovations in synthetic biology and biomaterials are redefining how can be engineer smarter, more responsive CAR-T cells.