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Schematic of cell adhesion. Cell adhesion is the process by which cells interact and attach to neighbouring cells through specialised molecules of the cell surface. This process can occur either through direct contact between cell surfaces such as cell junctions or indirect interaction, where cells attach to surrounding extracellular matrix, a gel-like structure containing molecules released ...
For example, adult barnacles achieve pull-off forces as high as 2 MPa (2 N/mm 2). A similarly strong, rapidly adhering glue - which contains 171 different proteins and can adhere to wet, moist and impure surfaces - is produced by the very hard [ 5 ] [ 6 ] limpet species Patella vulgata ; this adhesive material is a very interesting subject of ...
The process is highly regulated by cell adhesion molecules, particularly, the addressin also known as MADCAM1. This antigen is known for its role in tissue-specific adhesion of lymphocytes to high endothelium venules. [23] Through these interactions they play a crucial role in orchestrating circulating lymphocytes.
Note 1: Adhesion requires energy that can come from chemical and/or physical linkages, the latter being reversible when enough energy is applied. Note 2: In biology, adhesion reflects the behavior of cells shortly after contact to the surface. Note 3: In surgery, adhesion is used when two tissues fuse unexpectedly. [1]
This allows for homophilic cell–cell adhesion. [18] The β-catenin–α-catenin linked complex at the adherens junctions allows for the formation of a dynamic link to the actin cytoskeleton. [19] Integrins act as adhesion receptors, transporting signals across the plasma membrane in multiple directions. These molecules are an invaluable part ...
Many studies have postulated that increased production of cell adhesion molecules (CAMs) on the vascular endothelium (blood vessel lining) plays a role in the development of arterial plaque, with the suggestion from both in vitro and in vivo studies that the CAM production is increased by dyslipidemia (abnormal lipid levels in the blood). [3]
This is likely due to distinct cadherins, a calcium-binding membrane protein, expressed by different sponge species and individuals. [5] Cadherins are present in more complex organisms as well. In mouse embryos, E-cadherin on cell membranes is responsible for the adhesion of cells needed for embryonic compaction.
Escherichia coli FimH provides an example of conformation specific immune response which enhances impact on the protein. [19] By studying this particular adhesion, researchers hope to develop adhesion-specific vaccines which may serve as a model for antibody-mediation of pathogen adhesion.