Biomaterial Database

Immunochemical characterization of the hyaluronic acid-hyaluronectin interaction. 1982

B Delpech

The interaction between hyaluronic acid (HA) and hyaluronectin (HN) was analyzed by gel chromatography and by the effects of HA on the immunological precipitation of HN. This interaction led to formation of larger molecules, as shown by gel permeation. No inhibition of immune precipitation occurred in liquid phase after addition of HA, but the precipitates in unstained gels were rendered transparent, giving the appearance of inhibition. However, after staining of the gels the precipitates appeared normal. Moreover, a non-linear decrease of the diffusion rate in antibody-containing gel was observed as a function of HA concentration at HA:HN weight ratios of 0.75 x 10(-3) and higher. A faster movement during electrophoresis, depending on the HA:HN ratio, suppressed the precipitation line when tested by electrosyneresis and produced an increase in migration distance when tested by Laurell's electroimmunoassay. These results show that in the immunochemical detection and quantitation of NH by these techniques consideration should always be given to the amount of HA in the samples.

UI	MeSH Term	Description	Entries
D007122	Immunoelectrophoresis	A technique that combines protein electrophoresis and double immunodiffusion. In this procedure proteins are first separated by gel electrophoresis (usually agarose), then made visible by immunodiffusion of specific antibodies. A distinct elliptical precipitin arc results for each protein detectable by the antisera.
D001923	Brain Chemistry	Changes in the amounts of various chemicals (neurotransmitters, receptors, enzymes, and other metabolites) specific to the area of the central nervous system contained within the head. These are monitored over time, during sensory stimulation, or under different disease states.	Chemistry, Brain,Brain Chemistries,Chemistries, Brain
D002352	Carrier Proteins	Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes.	Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D005779	Immunodiffusion	Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.	Gel Diffusion Tests,Diffusion Test, Gel,Diffusion Tests, Gel,Gel Diffusion Test,Immunodiffusions,Test, Gel Diffusion,Tests, Gel Diffusion
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006820	Hyaluronic Acid	A natural high-viscosity mucopolysaccharide with alternating beta (1-3) glucuronide and beta (1-4) glucosaminidic bonds. It is found in the UMBILICAL CORD, in VITREOUS BODY and in SYNOVIAL FLUID. A high urinary level is found in PROGERIA.	Amo Vitrax,Amvisc,Biolon,Etamucine,Healon,Hyaluronan,Hyaluronate Sodium,Hyvisc,Luronit,Sodium Hyaluronate,Acid, Hyaluronic,Hyaluronate, Sodium,Vitrax, Amo
D018960	Hyaluronan Receptors	Acidic sulfated integral membrane glycoproteins expressed in several alternatively spliced and variable glycosylated forms on a wide variety of cell types including mature T-cells, B-cells, medullary THYMOCYTES; GRANULOCYTES; MACROPHAGES; erythrocytes, and fibroblasts. Their interaction with HYALURONIC ACID mediates binding of lymphocytes to high endothelial VENULES.	Antigens, CD44,CD44 Antigens,Hyaluronan-Binding Protein,Receptors, Hyaluronan,CD44 Antigen,Chondroitin Sulfate Proteoglycan 8,Hyaluronan Receptor,Hyaluronic Acid Binding Protein,Antigen, CD44,Hyaluronan Binding Protein,Receptor, Hyaluronan