Acute In Vivo Administration of Compound 21 Stimulates Akt and ERK1/2 Phosphorylation in Mouse Heart and Adipose Tissue.

ABSTRACT: The angiotensin II type 2 (AT₂) receptor has a role in promoting insulin sensitivity. However, the mechanisms underlying the AT₂ receptor-induced facilitation of insulin are still not completely understood. Therefore, we investigated whether acute in vivo administration of AT₂ receptor agonist compound 21 (C21) could activate insulin signaling molecules in insulin-target tissues. We report that, in male C57BL/6 mice, an acute (5 min, 0.25 mg/kg; i.v.) injection of C21 induces the phosphorylation of Akt and ERK1/2 at activating residues (Ser473 and Thr202/Tyr204, respectively) in both epididymal white adipose tissue (WAT) and heart tissue. In WAT, the extent of phosphorylation (p) of Akt and ERK1/2 induced by C21 was approximately 65% of the level detected a

SUBMITTER: Quiroga DT 

PROVIDER: S-EPMC10706736 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature