using immunofluorescence , immunoblotting , and immunoprecipitation experiments , evidence is presented that ( 1 ) the alloantigen leka is not expressed in endothelial cells of an individual whose platelets are of the leka/pia1 phenotype , whereas the pia1 alloantigen is readily detectable in these cells , ( 2 ) that in contrast to hel cells , which express platelet gp iib/iiia and are of the leka/pia1 phenotype , platelet gp iib is immunologically undetectable in 12-o-tetradecanoyl-phorbol-13-acetate ( tpa ) -treated k562 cells despite the presence of platelet gp iiia , and ( 3 ) that peripheral blood mononuclear cells do not express platelet gp iib or gp iiia on their cell surface .
C0007634
cells
C1321301
peripheral blood mononuclear cells