Cell adhesion is the phenomenon that a cell binds to a surface, extracellular matrix or other cell by cell adhesion molecules such as selectins, cadherins and integrins and immunoglobulin superfamily members.
ProcessFirstly, hydrolysis of cell adhesion molecules takes place through extracellular enzymes. Eukaryoten
Eukaryotic protozoa cleaves all kinds of adhesion molecules. An example of a diseased protozoan is the malaria parasite (Plasmodium falciparum), which binds circumsporozoite to hepatic cells by means of the adhesion molecule and to the red blood cells using another adhesion molecule, the merozoite surface protein. Defects in cell adhesion are usually the result of a disturbed separation of adhesion molecules. Prokaryoten
The adhesion molecules of prokaryotes are commonly called adhesins. Adhesives may appear on the pilus, the whipstick or the cell surface. Adhesion of bacteria causes tropics among plants. Viruses
Viruses also have adhesion molecules to bind to host cells. For example, the influenza virus has a surface that is covered with hemagglutinin. This allows this virus to recognize sialic acid on the surface of other molecules. Hiv has an adhesion molecule called gp120, which involves a connection to the lymphocyte-derived protein CD4. Also see
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