Abstract
Alpha2-macroglobulin (α2M) is an acute phase protein released to the serum upon challenges such as cardiac hypertrophy and infarction. Here we report on the role of α2M in the induction of hypertrophic cell growth, contractile responsiveness of rat ventricular cardiomyocytes, and on the underlying extracellular regulated kinase 1,2 (ERK1,2) and phosphoinositide 3-kinase (PI3-kinase)/Akt pathways.