Fibroblast migration

Fibroblast migration is a coordinated, actin cytoskeleton-driven process involving cell polarization, protrusion formation, cell adhesion, and contraction, allowing fibroblast cells to move toward sites of tissue injury, inflammation, or remodeling[1][2][5][9]. It is modulated by growth factors such as PDGF, TGF-β, and signaling pathways involving integrins, receptor tyrosine kinases, PI3K, MAPK/ERK, Rho GTPases (Rac, Cdc42), and mechanical and chemotactic cues from the environment[6][8][9]. Dysregulation of this process is implicated in pathological fibrosis and cancer stroma[6][8]. There are many receptors, enzymes, and signaling proteins (e.g., PDGF receptor, TGF-β receptor, integrins, focal adhesion kinase, PI3K, Rho GTPases) that regulate fibroblast migration and can be considered therapeutic targets themselves[6][9]. "Fibroblast migration" does not refer to a protein, gene, or druggable target; it is a cellular behavior regulated by multiple molecules. For structured drug discovery, individual proteins or pathways involved in this process should be specified[2][5][6][9]. "Fibroblast migration" is not a valid molecular target; the term describes a biological process involving complex signaling networks and cellular machinery[2][5][7][9]. To create structured drug-target data, focus should shift to specific molecular mediators within this process.