Actin (Smooth Muscle) is an actin that marks smooth blood, which react with a-SMA but not cross-react with actins of skeletal muscle and myocardium. This antibody can react with actin in smooth muscle cells of blood vessels, intestines and myometrium, as well as myoepithelial cells of breast and salivary glands.
Staining Tissue
As Figure shows:
Breast cancer tissue stained with SMA