Smoothelin (SMTN) Antibody – Mouse Monoclonal

Smoothelin is a constituent of the smooth muscle cell (SMC) cytoskeleton. Antibodies directed to smoothelin are useful tools to monitor SMC differentiation. Smoothelin is exclusively expressed in fully differentiated (contractile) SMCs. RNA and protein analyses revealed a broad species distribution of this protein. Cells with SMC-like characteristics, such as myofibroblasts and myoepithelial cells, as well as skeletal and cardiac muscle do not contain smoothelin. Confocal scanning laser microscopy of tissue sections and cells in culture show a filamentous organization of smoothelin colocalizing with actin stress fibers. In immunoblots two molecular weight isoforms are detected i.e. a 59 kDa isoform specific for visceral SMC (smoothelin A), and an isoform with a molecular weight of approximately 100 kDa in vascular SMC (smoothelin B). Human smoothelin is encoded by a single copy gene which is loCated on chromosome 22.

van der Loop, F. T., Schaart, G., Timmer, E. D., Ramaekers, F. C., and van Eys, G. J. (1996). Smoothelin, a novel cytoskeletal protein specific for smooth muscle cells, J Cell Biol 134, 401-11. Wehrens, X. H., Mies, B., Gimona, M., Ramaekers, F. C., Van Eys, G. J., and Small, J. V. (1997). Localization of smoothelin in avian smooth muscle and identifiCation of a vascular-specific isoform, FEBS Lett 405, 315-20. van der Loop, F. T., Gabbiani, G., Kohnen, G., Ramaekers, F. C., and van Eys, G. J. (1997). Differentiation of smooth muscle cells in Human blood vessels as defined by smoothelin, a novel marker for the contractile phenotype, Arterioscler Thromb Vasc Biol 17, 665-71. Christen, T., Bochaton-Piallat, M. L., Neuville, P., Rensen, S., Redard, M., van Eys, G., and Gabbiani, G. (1999). Cultured porcine coronary artery smooth muscle cells. A new model with advanced differentiation, Circ Res 85, 99-107. Johansson, B., Eriksson, A., Ramaekers, F., and Thornell, L. (1999). Smoothelin in adult and developing Human arteries and myocardium, Histochem Cell Biol 112, 291-9. Johansson, B., Eriksson, A., Ramaekers, F., and Thornell, L. E. (1999). Smoothelin and intermediate filament proteins in Human aortocoronary saphenous vein by-pass grafts, Histochem J 31, 723-7. Deruiter, M. C., Rensen, S. S., Coolen, G. P., Hierck, B. P., Bergwerff, M., Debie, W. M., Gittenberger-De Groot, A. C., and Van Eys, G. J. (2001). Smoothelin expression during Chicken embryogenesis: detection of an embryonic isoform, Dev Dyn 221, 460-3. Council, L., Hameed, O. (2009). Differential expression of immunohistochemical markers in bladder smooth muscle and myofibroblasts, and the potential utility of desmin, smoothelin, and vimentin in staging of bladder carcinoma Modern Pathology 22, 639-50. Coco, D.P., Hirsch, M.S., Hornick, J.L. (2009). Smoothelin is a specific marker for smooth muscle neoplasms of the gastrointestinal tract. Am J Surg Pathol 33, 1795-1801.

Small volumes of anti-SMTN antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS570102 is an antibody targeting SMTN. Also known as Mouse anti Smoothelin. Reactive in Canine, Chicken, Feline, Human, Monkey, Swine. Host: Mouse.