Xenoantibodies to pig endothelium are expressed in germline configuration and share a conserved immunoglobulin V sub(H) gene structure with antibodies to common infectious agents

Xenoantibodies to pig endothelium are expressed in germline configuration and share a conserved immunoglobulin V sub(H) gene structure with antibodies to common infectious agents

The rejection of pig xenografts in humans is initiated by preformed antibodies that may be related to the natural antibodies that formulate a first line of defense against infectious agents. Immunoglobulin gene variable domains encoding the antibodies that react with similar epitopes expressed on xe...

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Veröffentlicht in:Transplantation 1998-06, Vol.65 (11), p.1515-1518
Hauptverfasser: Kearns-Jonker, M, Fraiman, M, Chu, W, Gochi, E, Michel, J, Wu, Guo-Du, Cramer, D V
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container_end_page 1518
container_issue 11
container_start_page 1515
container_title Transplantation
container_volume 65
creator Kearns-Jonker, M
Fraiman, M
Chu, W
Gochi, E
Michel, J
Wu, Guo-Du
Cramer, D V
description The rejection of pig xenografts in humans is initiated by preformed antibodies that may be related to the natural antibodies that formulate a first line of defense against infectious agents. Immunoglobulin gene variable domains encoding the antibodies that react with similar epitopes expressed on xenoantigens and bacteria may share structurally similar antigen-binding site configurations. We sequenced the V sub(H) immunoglobulin genes and germline progenitors of two rat monoclonal antibodies that recognize pig xenoantigens. Nucleic and amino acid sequences of these xenoantibodies were compared with immunoglobulin genes encoding antibodies that react with bacteria or viruses. V sub(H) genes encoding rat anti-pig xenoantibodies are expressed in germline configuration and share structural similarities, including identical amino acids in key antigenic contact sites that define antibody canonical structural groups, with antibodies to infectious agents.
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title Xenoantibodies to pig endothelium are expressed in germline configuration and share a conserved immunoglobulin V sub(H) gene structure with antibodies to common infectious agents
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