RESUMO
Human leukocyte typing sera of known specificities were used to test the leukocyte antigens of vervet monkeys. The results suggest that these leukocytes contained an antigen resembling the HL-A7 antigen of human leukocytes. This is similar to a previous observation with leukocytes from baboons. These findings are consistent with the suggestion that the 4a/4b complex is the precursor substance from which the other specificities have evolved.
Assuntos
Cercopithecus/imunologia , Chlorocebus aethiops/imunologia , Antígenos de Histocompatibilidade/análise , Animais , Testes Imunológicos de Citotoxicidade , HaplorrinosRESUMO
Soluble blood group substances, isolated from the red blood cells of humans, baboons, and vervet monkeys by ethanol extraction, possessed serologically active specificities for the following antigens: A, B, H, Lea, LebL, P, P19 Pk and I. Human red blood cells lacking any of these specificities by the direct hemagglutination test also lacked the related antigens in their soluble extract. The only exception was in "Bombay" Oh cells, from which soluble H substance could be readily isolated. Soluble substances obtained from baboon and vervet monkey red blood cells, which lack the human variety of A, B, and H antigens on their red blood cells, inhibited both human and lectin anti-H reagents. The detection of "hidden" H activity in Oh cells will pose some important questions regarding membrane characteristics and the role of immune surveilance.
Assuntos
Antígenos de Grupos Sanguíneos , Cercopithecus/sangue , Chlorocebus aethiops/sangue , Eritrócitos/imunologia , Haplorrinos/sangue , Papio/sangue , Sistema ABO de Grupos Sanguíneos , Animais , Epitopos , Etanol , Testes de Inibição da Hemaglutinação , Humanos , Sistema do Grupo Sanguíneo I , Antígenos do Grupo Sanguíneo de Lewis , Sistema do Grupo Sanguíneo PRESUMO
A study was made of the distribution of the A-B-O blood groups in two subspecies of baboons, Papio ursinus orientalis and P.u. occidentalis. The former had a significantly higher frequency of the A gene. Although there was no baboon of group O in either sample, the results for P.u. orientalis were consistent with the postulate that there was an amorphic O gene of low frequency as well as the genes A and B. For P.u. occidentalis the results suggested the presence of only two genes A and B.
