Hyaluronic acid (hyaluronan)
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Hyaluronic acid (hyaluronan): a review
Hyaluronic acid (HA) is a high molecular weight biopolysacharide, discovered in 1934, by Karl Meyer and his assistant, John Palmer in the vitreous of bovine eyes. Hyaluronic acid is a naturally occurring biopolymer, which has important biological functions in bacteria and higher animals including humans. It is found in most connective tissues and is particularly concentrated in synovial fluid, ...
متن کاملLocalisation of hyaluronan in the human intestinal wall.
By using biotin labelled proteoglycan core protein and an avidin enzyme system, hyaluronan (hyaluronic acid) was visualised in specimens of human jejunum. Intense staining for hyaluronan was seen in the loose connective tissue of the villi and of lamina propria while the epithelial layer was unstained. The muscularis mucosae showed only faint staining. The accumulation of hyaluronan in the sube...
متن کاملIdentification of IHABP, a 95 kDa intracellular hyaluronate binding protein.
The extracellular matrix component hyaluronan is believed to play important roles in various processes of organogenesis, cell migration and cancer. Recognition of and binding to hyaluronan is mediated by cell surface receptors. Three of them, CD44, ICAM-1 and RHAMM (receptor for hyaluronic acid mediated motility), have been identified. A cDNA clone designated RHAMM turned out to possess transfo...
متن کاملIdentification of a Novel Hyaluronic Acid Binding Protein in Human Breast Cancer Using a Monoclonal Antibody
The ubiquitous hyaluronan has diverse biological roles in vertebrates. These include acting as a vital structural component of connective tissues, the formation of loose hydrated matrices that allow cells to divide and migrate (e.g. during development), cell-cell interaction and a role in intracellular signaling. The interaction between hyaluronan and its binding proteins HABP (Hyaladherins) ar...
متن کاملInteraction of CD44 and hyaluronic acid enhances biliary epithelial proliferation in cholestatic livers.
Biliary epithelia express high levels of CD44 in hepatobiliary diseases. The role of CD44-hyaluronic acid interaction in biliary pathology, however, is unclear. A rat model of hepatic cholestasis induced by bile duct ligation was employed for characterization of hepatic CD44 expression and extracellular hyaluronan distribution. Cell culture experiments were employed to determine whether hyaluro...
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