BCL-6 regulates chemokine gene transcription in macrophages

被引:138
作者
Toney, LM
Cattoretti, G
Graf, JA
Merghoub, T
Pandolfi, PP
Dalla-Favera, R
Ye, BH
Dent, AL [1 ]
机构
[1] Indiana Univ, Sch Med, Dept Microbiol & Immunol, Indianapolis, IN 46202 USA
[2] Indiana Univ, Sch Med, Walther Oncol Ctr, Indianapolis, IN 46202 USA
[3] Walther Oncol Ctr, Indianapolis, IN 46208 USA
[4] Columbia Univ Coll Phys & Surg, Inst Canc Genet, New York, NY 10032 USA
[5] Columbia Univ Coll Phys & Surg, Dept Pathol, New York, NY 10032 USA
[6] Cornell Univ, Grad Sch Med Sci, Mem Sloan Kettering Canc Ctr, Sloan Kettering Div,Dept Human Genet, New York, NY 10021 USA
[7] Cornell Univ, Grad Sch Med Sci, Mem Sloan Kettering Canc Ctr, Sloan Kettering Div,Mol Biol Program, New York, NY 10021 USA
[8] Albert Einstein Coll Med, Dept Cell Biol, Bronx, NY 10461 USA
[9] Albert Einstein Coll Med, Ctr Comprehens Canc, Bronx, NY 10461 USA
关键词
D O I
10.1038/79749
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The transcriptional repressor protein BCL-6, implicated in the pathogenesis of B cell lymphoma, regulates lymphocyte differentiation and inflammation. We investigated the mechanism for the T helper cell subset 2 (T(H)2)-type inflammation that occurs in BCL-6(-/-) mice. Using chimeric mice we found that the T(H)2-type inflammation is dependent upon nonlymphoid cells. We identified three chemokines, MCP-1, MCP-3 and MRP-1,which are negatively regulated by BCL-6 in macrophages. Promoter analysis revealed that BCL-6 is a potent repressor of MCP-1 transcription. Our results provide a mechanism for the regulation of T(H)2-type inflammation by BCL-6 and link TH2 differentiation to innate immunity.
引用
收藏
页码:214 / 220
页数:7
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