Overview
BPC-157 (Body Protection Compound 157) is a synthetic pentadecapeptide derived from a protective protein isolated in human gastric juice. In preclinical models it has become one of the most studied reference compounds for tissue repair, vascular integrity, and gut-axis signaling.
Proposed mechanisms
Published rodent studies describe several converging pathways: upregulation of vascular endothelial growth factor receptor 2 (VEGFR2), activation of nitric oxide (NO) signaling, and modulation of growth-hormone receptor expression in fibroblasts. Together these are thought to drive the angiogenic and granulation-tissue effects reported after injury.
Additional literature points to interactions with the dopaminergic, serotonergic, and gut-brain axes, which is why BPC-157 frequently appears in models of colitis, esophageal lesions, and stress-induced gastric damage.
What the data does and does not show
Most published evidence is preclinical (rat and mouse models, in-vitro assays). Human pharmacokinetic and safety data remain limited. Researchers working with BPC-157 should treat it as an investigational reference standard and design studies around well-characterized animal protocols.
Practical notes for the lab
Lyophilized BPC-157 is typically reconstituted in bacteriostatic water and stored short-term at 2–8 °C. Repeated freeze-thaw cycles degrade pentadecapeptides, so aliquoting after reconstitution is standard practice.