There are several types of cell-cell adhesion, each serving different functions within tissues:
Tight Junctions: These junctions create a watertight seal between epithelial cells, preventing the passage of molecules and ions through the space between cells. Adherens Junctions: These are formed by cadherins and connect the actin cytoskeleton of adjacent cells, providing mechanical stability. Desmosomes: These junctions connect intermediate filaments of adjacent cells, giving tissues resistance to mechanical stress. Gap Junctions: These allow the direct transfer of small molecules and ions between neighboring cells, facilitating cellular communication.
