DSPE-PEG2000-WLSEAGPVVTVRALRGTGSW is a polypeptide targeting tenascin-X (Tenascin-X) that can be conjugated with liposomes and exosomes. DSPE-PEG2000-WLSEAGPVVTVRALRGTGSW specifically binds to Tenascin-X on the surface of cardiomyocytes, mediates receptor-dependent uptake of nanocarriers, enhances targeted drug delivery of cargo to cardiomyocytes, and increases drug accumulation in cardiac tissue. DSPE-PEG2000-WLSEAGPVVTVRALRGTGSW protects cardiomyocytes treated with LPS, alleviates oxidative stress, repairs mitochondrial function, inhibits ferroptosis and apoptosis, and downregulates the secretion of pro-inflammatory cytokines at the same time. DSPE-PEG2000-WLSEAGPVVTVRALRGTGSW improves cardiac injury and pathological morphology in mice with sepsis-induced cardiomyopathy, restores GPX4 expression, and promotes the internalization of cardiomyocyte-derived exosomes, making it suitable for related research on sepsis-induced cardiomyopathy, myocardial ischemia-reperfusion injury, and other conditions[1][2].
