Fibroblast

A fibroblast is a resident connective-tissue cell that produces the extracellular matrix and collagen scaffolds of most soft tissues. During tissue repair, fibroblasts proliferate, migrate directionally into the wound bed and remodel the matrix as new tissue matures.

Directed fibroblast migration depends on focal-adhesion signalling — the FAK-paxillin axis in particular — which couples integrin engagement at the cell membrane to the cytoskeletal machinery that drives forward movement.

In BPC-157 research, published work by Chang and colleagues reports that BPC-157 accelerates outgrowth and migration of cultured rat Achilles tendon fibroblasts through FAK-paxillin signalling.