Expression of glycolipid blood group antigens in single human kidneys: change in antigen expression of rejected ABO incompatible kidney grafts.

Total neutral glycolipid fractions were separated into molecular species on thin-layer chromatography plates and detected by immunostaining with monoclonal anti-blood group antibodies. Blood group A antigens based on type 1, 2, 3 and 4 carbohydrate core saccharides were present in kidneys of A1 and A1B individuals. Blood group A2 individuals expressed only small amounts of A antigen compared to A1 individuals especially of the type 3 and 4 compounds. Kidneys from non-secretor individuals contained less A antigen compared to secretor individuals, and in both groups a variation in the antigen expression between single individuals was noted. Blood group A type 2 and 3 (which is an extension of A type 2) antigens were present both as basic 6 and 9 sugar structures as well as extended saccharide chains migrating in the 8 to 11 sugar interval. In contrast, the type 1 chain based A and Lewis antigens were only present as their basic 5 to 7 sugar chains, and no elongated structures were found. Four cases of A2 kidneys initially transplanted into O recipients and removed after 5, 12, 21 days and 4 years, respectively, were also analyzed. Two of these kidneys, originating from the same donor, showed a difference in A antigen expression. The kidney functioning for four years (lost due to chronic rejection) completely lacked X antigen with five sugar residues (present in all other individuals) and contained a large amount of A antigens.(ABSTRACT TRUNCATED AT 250 WORDS)

Bäcker, A E (författare)
Clausen, H (författare)
Hakomori, S (författare)
Rydberg, Lennart,1944Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk kemi/transfusionsmedicin,Institute of Laboratory Medicine, Dept of Clinical Chemistry/Transfusion Medicine(Swepub:gu)xrydle (författare)
Samuelsson, B E (författare)
Breimer, Michael,1951Gothenburg University,Göteborgs universitet,Institutionen för de kirurgiska disciplinerna, Avdelningen för kirurgi,Institute of Surgical Sciences, Department of Surgery(Swepub:gu)xbremi (författare)
Göteborgs universitetInstitutionen för laboratoriemedicin, Avdelningen för klinisk kemi/transfusionsmedicin (creator_code:org_t)

Av författaren/redakt...: Ulfvin, A; Bäcker, A E; Clausen, H; Hakomori, S; Rydberg, Lennart ...; Samuelsson, B E; visa fler...; Breimer, Michael ...; visa färre...

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