Document 0129 DOCN M95B0129 TI Specificity and cross-reactivity of anti-galactocerebroside antibodies. DT 9511 AU McAlarney T; Ogino M; Apostolski S; Latov N; Department of Neurology, College of Physicians and Surgeons of; Columbia University, New York, N.Y. 10032, USA. SO Immunol Invest. 1995 May;24(4):595-606. Unique Identifier : AIDSLINE MED/95347775 AB Anti-galactocerebroside (GalC) antibodies have been reported to inhibit myelin formation, cause demyelination, and block HIV-I infection of neural cells. We examined the binding of 3 monoclonal and polyclonal anti-GalC antibodies to a panel of purified glycolipids by ELISA and by an immunospot assay on nitrocellulose blots. All 3 antibodies bound strongly to GM1 ganglioside, monogalactosyl diglyceride, and asialo-GM1, and 2 of the antibodies bound to GD1b and psychosine. The anti-GalC antibodies also bound to 3 glycoprotein bands in human neuroblastoma cells on Western blot, and binding to the proteins was abolished by pre-treatment with pronase or with periodate which oxidizes the terminal carbohydrate residues. These results indicate that anti-GalC antibodies cross react with oligosaccharide determinants of other glycolipids and glycoproteins, and that these cross-reactivities may be responsible for some of the biological effects of the anti-GalC antibodies. DE Animal Antibody Specificity Antigenic Determinants/IMMUNOLOGY Antigens, Neoplasm/IMMUNOLOGY/ISOLATION & PURIF Autoantibodies/IMMUNOLOGY Carbohydrate Sequence Comparative Study Cross Reactions Enzyme-Linked Immunosorbent Assay Galactosylceramides/*IMMUNOLOGY Glycolipids/IMMUNOLOGY/ISOLATION & PURIF Glycoproteins/IMMUNOLOGY/ISOLATION & PURIF Human IgM/IMMUNOLOGY Mice Molecular Sequence Data Motor Neuron Disease/IMMUNOLOGY Neoplasm Proteins/IMMUNOLOGY/ISOLATION & PURIF Neuroblastoma/CHEMISTRY/IMMUNOLOGY Rabbits Sensation Disorders/IMMUNOLOGY Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. Tumor Cells, Cultured JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).