Apical Cell Membrane Growth Factor

摘要

The apical membrane of a polarized cell is a part of the plasma membrane that forms its luminal surface, distinct from the basolateral membrane. For example epithelial cells membrane has their apical surface exposed to the body exterior, or depending on their location an internal open space like the intestinal lumen. Apical cell membranes of stereo cilia are protected with a glycocalyx composed of silica acid containing glycoproteins and glycolipids which includes gangliosides, 183 creating a dense negative charge field that generally prevents fusion of adjacent stereo cilia.