primary antibodies used in this study were directed against 1 ) smooth muscle myosin and 2 ) nonmuscle myosin , components of the cytoskeleton in smooth muscle and nonmuscle cells , respectively , and 3 ) laminin and 4 ) fibronectin , extracellular glycoproteins mediating cell-matrix attachment in smooth muscle and nonmuscle cells , respectively .
C0022984
laminin
C0017968
glycoproteins