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Reaction of various lectins to mucin derived from the different layers of rat gastric mucosa: comparison of enzyme-linked lectin binding assay with lectin histochemistry. 2000

H Kodaira, and K Ishihara, and K Hotta, and M Kagoshima, and H Shimada, and K Ishii
Department of Molecular Pharmacology, School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan. kodairah@pharm.kitasato-u.ac.jp

The purpose of this study was to demonstrate that the histochemical staining reactivities of lectins in rat stomach actually represent the gastric mucins, and to estimate the utility of the lectins for mucin histochemistry. In this paper, the lectin histochemistry was compared with an enzyme-linked lectin binding assay (ELLA) of the mucins derived from distinct regions and layers of the Sprague-Dawley rat stomach and it was examined to determine the definite binding and problematic binding of the conventional lectin. Among the 10 different biotinylated lectins, Canavalia ensiformis (ConA), Griffonia simplicifolia II (GS-II), Triticuin vulgaris (WGA), Ricinus communis I (RCA-I), Arachis hypogaea (PNA), Glycine max (SBA), Dolichos biflorus (DBA), Ulex europaeus I (UEA-I), Sambucus nigra (SNA) and Maackia amurensis II (MAL-II), examined in this study, GS-II, SBA, DBA, UEA-I, SNA and MAL-II bound clearly to the mucin of distinct regions and layers of the Sprague-Dawley rat stomach in agreement with the results of ELLA. Namely GS-II lectins preferentially bound to the mucin in the mucous neck cells of the corpus area. SBA and DBA clearly recognized the mucin in the covering epithelial mucous cells in the corpus and antral area. UEA-I was widely bound to all the mucin present in both the corpus and antrum. On the other hand, SNA and MAL-II could not react with the mucin obtained from the gastric mucosa but was specifically bound to the mucin purified from the mucous gel layer. These results suggested that the lectins described above are useful histochemical tools to recognize the mucus present in the different regions and layers of Sprague-Dawley rat gastric mucosa.

UI MeSH Term Description Entries
D007202 Indicators and Reagents Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499) Indicator,Reagent,Reagents,Indicators,Reagents and Indicators
D008297 Male Males
D009077 Mucins High molecular weight mucoproteins that protect the surface of EPITHELIAL CELLS by providing a barrier to particulate matter and microorganisms. Membrane-anchored mucins may have additional roles concerned with protein interactions at the cell surface. Mucin
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005753 Gastric Mucosa Lining of the STOMACH, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. The surface cells produce MUCUS that protects the stomach from attack by digestive acid and enzymes. When the epithelium invaginates into the LAMINA PROPRIA at various region of the stomach (CARDIA; GASTRIC FUNDUS; and PYLORUS), different tubular gastric glands are formed. These glands consist of cells that secrete mucus, enzymes, HYDROCHLORIC ACID, or hormones. Cardiac Glands,Gastric Glands,Pyloric Glands,Cardiac Gland,Gastric Gland,Gastric Mucosas,Gland, Cardiac,Gland, Gastric,Gland, Pyloric,Glands, Cardiac,Glands, Gastric,Glands, Pyloric,Mucosa, Gastric,Mucosas, Gastric,Pyloric Gland
D006651 Histocytochemistry Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods. Cytochemistry
D006735 Horseradish Peroxidase An enzyme isolated from horseradish which is able to act as an antigen. It is frequently used as a histochemical tracer for light and electron microscopy. Its antigenicity has permitted its use as a combined antigen and marker in experimental immunology. Alpha-Peroxidase,Ferrihorseradish Peroxidase,Horseradish Peroxidase II,Horseradish Peroxidase III,Alpha Peroxidase,II, Horseradish Peroxidase,III, Horseradish Peroxidase,Peroxidase II, Horseradish,Peroxidase III, Horseradish,Peroxidase, Ferrihorseradish,Peroxidase, Horseradish
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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