Intelligent tunable CAR-T cell therapy leads the new trend

Adoptive transfer of T cells engineered with chimeric antigen receptor (CAR) has been proved to have robust anti-tumor effects against hematological malignancies. However, problems about safety and efficacy, such as cytokine release syndrome (CRS), T cell exhaustion and antigen escape are still raised when patients are treated with CAR-T cells. Moreover, CAR-T therapy has limited applications in treating solid tumors, owing to inefficient infiltration and poor functional persistence of CAR-T cells and diverse immunosuppression in tumor microenvironment. In order to overcome these limitations and broad its applications, multiple controllable CAR-T technologies were exploited. In this article, we review the designs of intelligent controlled CAR-T technologies and the innovations that they bring about in recent years.