CXCR4/CXCL12 hyperexpression plays a pivotal role in the pathogenesis of lupus.
CXCR4/CXCL12 hyperexpression plays a pivotal role in the pathogenesis of lupus.
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DOI:
10.4049/jimmunol.0801920
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发表时间:
2009-04-01
期刊:
影响因子:
--
通讯作者:
Mohan C
中科院分区:
文献类型:
--
作者:
Wang A;Fairhurst AM;Tus K;Subramanian S;Liu Y;Lin F;Igarashi P;Zhou XJ;Batteux F;Wong D;Wakeland EK;Mohan C
Among various surface molecules screened, CXCR4 was significantly up-regulated on monocytes, neutrophils, B-cell subsets, and plasma cells in multiple murine models of lupus with active nephritis, including B6.Sle1Yaa, BXSB, and MRL.lpr. TLR-mediated signaling and inflammatory cytokines accounted in part for this increase. Increased CXCR4 expression was associated with functional consequences, including increased migration and enhanced B-cell survival. Simultaneously, the ligand for CXCR4, CXCL12, was significantly upregulated in the nephritic kidneys. Treatment with a peptide antagonist of CXCR4 prolonged survival and reduced serum autoantibodies, splenomegaly, intra-renal leukocyte trafficking and end organ disease in a murine model of lupus. These findings underscore the pathogenic role of CXCR4/CXCL12 in lymphoproliferative lupus and lupus nephritis and highlight this axis as a promising therapeutic target in this disease.
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