Arginase‐II Induces Vascular Smooth Muscle Cell Senescence and Apoptosis Through p66Shc and p53 Independently of Its l ‐Arginine Ureahydrolase Activity: Implications for Atherosclerotic Plaque Vulnerability

Arg-II, independently of its l-arginine ureahydrolase activity, promotes mitochondrial dysfunction leading to VSMC senescence/apoptosis through complex positive crosstalk among S6K1-JNK, ERK, p66Shc, and p53, contributing to atherosclerotic vulnerability phenotypes in mice.