Fibrin gel enhances the antitumor effects of chimeric antigen receptor T cells in glioblastoma.

Ogunnaike, Edikan A; Valdivia, Alain; Yazdimamaghani, Mostafa; Leon, Ernesto; Nandi, Seema; Hudson, Hannah; Du, Hongwei; Khagi, Simon et al. · Sci Adv · 2021

basic_science · Level V

Where this comes from

Abstract

Regional delivery of chimeric antigen receptor (CAR) T cells in glioblastoma represents a rational therapeutic approach as an alternative to intravenous administration to avoid the blood-brain barrier impediment. Here, we developed a fibrin gel that accommodates CAR-T cell loading and promotes their gradual release. Using a model of subtotal glioblastoma resection, we demonstrated that the fibrin-based gel delivery of CAR-T cells within the surgical cavity enables superior antitumor activity compared to CAR-T cells directly inoculated into the tumor resection cavity.