Actin is one of two major cytoskeletal proteins. The antibody can be used to identify smooth muscle tumors. It stains leiomyomas, leiomyosarcomas and pleomorphic adenomas but does not stain carcinomas, melanomas, lymphomas or non-smooth muscle sarcomas. It stains the muscularis and muscularis mucosa of the gastrointestinal tract, the uterine myometrium, medial layer of blood vessels, the mesenchymal components of the prostate, and myoepithelial cells of salivary glands and other organs. The antibody does not stain striated muscle such as skeletal and cardiac muscle, endothelium, connective tissue, epithelium or nerve.
|Tissue Type/Cancer Type|
0.5 mL – Manual – Concentrate, 1 mL – Manual – Concentrate, 6 mL – Manual – RTU, 50 Tests – Automation – Xmatrx, 100 Tests – Automation – i6000, 200 Tests – Automation – Xmatrx, 5 slides – Xmatrx, 5 slides – Manual