Reactions of monoclonal antibodies to human MN blood groups with red blood cells of subhuman primates.
Immunological Investigations(2009)
Abstract
All 12 samples of chimpanzee erythrocytes tested were agglutinated by the commercial polyclonal anti-M reagent of rabbit origin, but none was agglutinated by monoclonal anti-M reagent of murine origin. This, as well as results of absorption experiments, showed that the polyclonal and monoclonal anti-M reagents detect different M epitopes. Polyclonal anti-N reagent of rabbit origin and monoclonal reagent of murine origin obtained by immunization with N blood group substance did not react with any chimpanzee erythrocyte samples. On the other hand, monoclonal anti-N reagent originating from immunization with M blood group substance agglutinated two of the 12 tested chimpanzee erythrocyte samples. This and other experimental results strongly suggested that the latter monoclonal anti-N reagent combined with "N" antigen, i.e., an antigen present on glycophorin B of human M as well as N erythrocytes; apparently erythrocytes of some chimpanzees contain also this antigen.
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Key words
blood groups,monoclonal antibody
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