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2004 OCT 6 - (NewsRx.com & NewsRx.net) -- Glycan arrays lead to the discovery of autoimmunogenic activity of SARS-CoV.
"Using carbohydrate microarrays, we characterized the carbohydrate binding activity of SARS-CoV neutralizing antibodies elicited by an inactivated SARS-CoV vaccine. In these antibodies, we detected undesired autoantibody reactivity specific for the carbohydrate moieties of an abundant human serum glycoprotein asialo-orosomucoid (ASOR). This observation provides important clues for the selection of specific immunologic probes to examine whether SARS-CoV expresses antigenic structures that mimic the host glycan," researchers in the United States and China report.
"We found that lectin PHA-L (Phaseolus vulgaris L.), which is specific for a defined complex carbohydrate of ASOR, stained the SARS-CoV-infected cells specifically and intensively," said Denong Wang at Stanford University in the U.S. and Jiahai Lu at Sun Yat-sen University in China. "Taken together, we present immunologic evidence that a carbohydrate structure of SARS-CoV shares antigenic ...