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Carbohydrate-specific monoclonal antibodies bind to human granulocytes and stimulate antibody-dependent cellular cytotoxicity. 1989

P F Spitalnik, and S L Spitalnik, and J M Danley, and A F Lopez, and M A Vadas, and C I Civin, and V Ginsburg
Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia 19104.

Mouse monoclonal antibodies which specifically recognize human granulocytes are used to study the classification, differentiation, and function of these cells. Mouse monoclonal antibody WEM-G1 specifically binds to human neutrophils and eosinophils. It also affects granulocyte function by stimulating granulocyte-mediated antibody-dependent cellular cytotoxicity. Biochemical studies presented here show that WEM-G1 recognizes the sugar sequence 3-fucosyllactosamine, Gal beta 1-4[Fuc alpha 1-3]GlcNAc. This sequence is present in granulocyte glycolipids and in glycoproteins of average approximate Mr 165,000 and 105,000. WEM-G1 is thus similar to other monoclonal antibodies that recognize this sequence on granulocytes and various other cells. Some of these 3-fucosyllactosamine-specific antibodies affect several other granulocyte functions. Knowledge of the biochemical structure of the WEM-G1 antigen suggested testing granulocyte function with other monoclonal antibodies of similar specificity. Antibodies recognizing both the identical oligosaccharide structure and a related sequence, Gal beta 1-4GlcNAc-R, were also found to stimulate granulocyte-mediated antibody-dependent cellular cytotoxicity.

UI MeSH Term Description Entries
D009504 Neutrophils Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes. LE Cells,Leukocytes, Polymorphonuclear,Polymorphonuclear Leukocytes,Polymorphonuclear Neutrophils,Neutrophil Band Cells,Band Cell, Neutrophil,Cell, LE,LE Cell,Leukocyte, Polymorphonuclear,Neutrophil,Neutrophil Band Cell,Neutrophil, Polymorphonuclear,Polymorphonuclear Leukocyte,Polymorphonuclear Neutrophil
D009844 Oligosaccharides Carbohydrates consisting of between two (DISACCHARIDES) and ten MONOSACCHARIDES connected by either an alpha- or beta-glycosidic link. They are found throughout nature in both the free and bound form. Oligosaccharide
D011233 Precipitin Tests Serologic tests in which a positive reaction manifested by visible CHEMICAL PRECIPITATION occurs when a soluble ANTIGEN reacts with its precipitins, i.e., ANTIBODIES that can form a precipitate. Precipitin Test,Test, Precipitin,Tests, Precipitin
D002236 Carbohydrate Conformation The characteristic 3-dimensional shape of a carbohydrate. Carbohydrate Linkage,Carbohydrate Conformations,Carbohydrate Linkages,Conformation, Carbohydrate,Conformations, Carbohydrate,Linkage, Carbohydrate,Linkages, Carbohydrate
D002241 Carbohydrates A class of organic compounds composed of carbon, hydrogen, and oxygen in a ratio of Cn(H2O)n. The largest class of organic compounds, including STARCH; GLYCOGEN; CELLULOSE; POLYSACCHARIDES; and simple MONOSACCHARIDES. Carbohydrate
D004804 Eosinophils Granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin. Eosinophil
D006017 Glycolipids Any compound containing one or more monosaccharide residues bound by a glycosidic linkage to a hydrophobic moiety such as an acylglycerol (see GLYCERIDES), a sphingoid, a ceramide (CERAMIDES) (N-acylsphingoid) or a prenyl phosphate. (From IUPAC's webpage) Glycolipid
D006023 Glycoproteins Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins. C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006098 Granulocytes Leukocytes with abundant granules in the cytoplasm. They are divided into three groups according to the staining properties of the granules: neutrophilic, eosinophilic, and basophilic. Mature granulocytes are the NEUTROPHILS; EOSINOPHILS; and BASOPHILS. Granulocyte
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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