Borrelia burgdorferi basic membrane proteins A and B participate in the genesis of Lyme arthritis.
Borrelia burgdorferi basic membrane proteins A and B participate in the genesis of Lyme arthritis.
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DOI:
10.1084/jem.20070962
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发表时间:
2008-01-21
期刊:
影响因子:
--
通讯作者:
Fikrig E
中科院分区:
文献类型:
--
作者:
Pal U;Wang P;Bao F;Yang X;Samanta S;Schoen R;Wormser GP;Schwartz I;Fikrig E
Lyme arthritis results from colonization of joints by Borrelia burgdorferi and the ensuing host response. Using gene array–based differential analysis of B. burgdorferi gene expression and quantitative reverse trancription-polymerase chain reaction, we identified two paralogous spirochete genes, bmpA and bmpB, that are preferentially up-regulated in mouse joints compared with other organs. Transfer of affinity-purified antibodies against either BmpA or BmpB into B. burgdorferi–infected mice selectively reduced spirochete numbers and inflammation in the joints. B. burgdorferi lacking bmpA/B were therefore generated to further explore the role of these proteins in the pathogenesis of Lyme disease. B. burgdorferi lacking bmpA/B were infectious in mice, but unable to persist in the joints, and they failed to induce severe arthritis. Complementation of the mutant spirochetes with a wild-type copy of the bmpA and bmpB genes partially restored the original phenotype. These data delineate a role for differentially produced B. burgdorferi antigens in spirochete colonization of mouse joints, and suggest new strategies for the treatment of Lyme arthritis.
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DOI:
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