Biomaterial scaffolds induce a TH2 response in volumetric muscle wounds.

Kaitlyn Sadtler, PhD – Published in Science

Engineering a healing immune response

Infections, surgeries, and trauma can all cause major tissue damage. Biomaterial scaffolds, which help to guide regenerating tissue, are an exciting emerging therapeutic strategy to promote tissue repair. Sadtler et al. tested how biomaterial scaffolds interact with the immune system in damaged tissue to promote repair (see the Perspective by Badylak). Scaffolds derived from cardiac muscle and bone extracellular matrix components trigger a tissue-reparative T cell immune response in mice with injured muscles.