T cell-responsive macroporous hydrogels for in situ T cell expansion and enhanced antitumor efficacy

Autor: Rimsha Bhatta, Joonsu Han, Yusheng Liu, Yang Bo, Hua Wang
Rok vydání: 2023
Předmět:
Zdroj: Biomaterials. 293:121972
ISSN: 0142-9612
DOI: 10.1016/j.biomaterials.2022.121972
Popis: Adoptive T cell therapy has demonstrated great promise for treating cancer and other diseases. While extensive effort has been made to improve ex vivo expansion of T cells, strategies for maintaining the proliferation and function of T cells post adoptive transfer are still lacking. Here we report an injectable T cell-responsive macroporous hydrogel that enables in situ activation and expansion of T cells. The macroporous gel is composed of a polymeric network with dispersed macropores (∼150 μm) that are large enough to home T cells. In the presence of T cells that can gradually disrupt the gel network surrounding the macropores, activation cues can be gradually released for in situ activation and expansion of T cells. This T cell-responsive macroporous gel enables expansion of effector T cells in vivo, is stable over weeks upon subcutaneous injection, and results in enhanced CD8
Databáze: OpenAIRE