Analytical Cellular Pathology (Jan 2010)
p21/waf1 and Smooth-Muscle Actin α Expression in Stromal Fibroblasts of Oral Cancers
Abstract
Background: Concerted alterations between stromal fibroblasts and neoplastic cells underline the carcinogenic process. Activation of alpha-smooth muscle actin (SMA) expression, a cytoskeleton protein normally expressed only in myoepithelial cells, is considered a landmark for the activation of stromal fibroblasts with little however being known regarding the mechanism governing the expression of SMA in the stroma.