Assembly of adherens junctions is required for sphingosine 1-phosphate-induced matriptase accumulation and activation at mammary epithelial cell-cell contacts.
Authors:Hung RJ, Hsu IaW, Dreiling JL, Lee MJ, Williams CA, Oberst MD, Dickson RB, Lin CY
Journal:Am J Physiol Cell Physiol
PubMed ID:15075215
Sphingosine 1-phosphate (S1P), a bioactive phospholipid, simultaneously induces actin cytoskeletal rearrangements and activation of matriptase, a membrane-associated serine protease in human mammary epithelial cells. In this study, we used a monoclonal antibody selective for activated, two-chain matriptase to examine the functional relationship between these two S1P-induced events. Ten minutes after ... More