Regulatory T cells and Toll-like receptors: What is the missing link?

被引:51
作者
Dai, Jie [1 ]
Liu, Bei [2 ]
Li, Zihai [2 ]
机构
[1] Schering Plough Biopharma, Palo Alto, CA 94304 USA
[2] Univ Connecticut, Sch Med, Neag Comprehens Canc Ctr, Ctr Immunotherapy Canc & Infect Dis,Dept Immunol, Farmington, CT 06030 USA
基金
美国国家卫生研究院;
关键词
Heat shock protein; gp96; Toll-like receptor; TLR4; Regulatory T cells; FoxP3; KINASE-C-THETA; ADAPTIVE IMMUNE-RESPONSES; SURFACE EXPRESSION; DENDRITIC CELLS; PKC-THETA; DIFFERENTIAL REGULATION; INNATE IMMUNITY; CUTTING EDGE; B-CELLS; PROTEIN;
D O I
10.1016/j.intimp.2009.01.027
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Toll-like receptors (TLRs) are critical sensors for microbial products and are important in initiating both innate and adaptive immune defenses against pathogens. Emerging evidence suggests that TLRs are also expressed by regulatory T cells (Treg) that constitute an important immune suppressive cellular mechanism to curtail TLR hyperactivity to avoid sepsis and autoimmune diseases. This review brings up to dale on the expression of functional TLRs on Treg and the functional impact of TLR activation on Treg biology. We argue that the suppressive function of Treg can be augmented or attenuated depending on the nature of TLR stimulations. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:528 / 533
页数:6
相关论文
共 72 条
[1]   Cutting edge: Cell surface expression and lipopolysaccharide signaling via the Toll-like receptor 4-MD-2 complex on mouse peritoneal macrophages [J].
Akashi, S ;
Shimazu, R ;
Ogata, H ;
Nagai, Y ;
Takeda, K ;
Kimoto, M ;
Miyake, K .
JOURNAL OF IMMUNOLOGY, 2000, 164 (07) :3471-3475
[2]   Novel signal transduction pathway utilized by extracellular HSP70 -: Role of Toll-like receptor (TLR) 2 AND TLR4 [J].
Asea, A ;
Rehli, M ;
Kabingu, E ;
Boch, JA ;
Baré, O ;
Auron, PE ;
Stevenson, MA ;
Calderwood, SK .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2002, 277 (17) :15028-15034
[3]  
Bausinger H, 2002, EUR J IMMUNOL, V32, P3708, DOI 10.1002/1521-4141(200212)32:12<3708::AID-IMMU3708>3.0.CO
[4]  
2-C
[5]   FOXP3 regulates TLR10 expression in human T regulatory cells [J].
Bell, Michael P. ;
Svingen, Phyllis A. ;
Rahman, Meher K. ;
Xiong, Yuning ;
Faubion, William A., Jr. .
JOURNAL OF IMMUNOLOGY, 2007, 179 (03) :1893-1900
[6]   Antigen-induced translocation of PKC-θ to membrane rafts is required for T cell activation [J].
Bi, K ;
Tanaka, Y ;
Coudronniere, N ;
Sugie, K ;
Hong, SJ ;
van Stipdonk, MJB ;
Altman, A .
NATURE IMMUNOLOGY, 2001, 2 (06) :556-563
[7]   Regulatory T cells selectively express toll-like receptors and are activated by lipopolysaccharide [J].
Caramalho, I ;
Lopes-Carvalho, T ;
Ostler, D ;
Zelenay, S ;
Haury, M ;
Demengeot, J .
JOURNAL OF EXPERIMENTAL MEDICINE, 2003, 197 (04) :403-411
[8]   Direct stimulation of human T cells via TLR5 and TLR7/8:: Flagellin and R-848 up-regulate proliferation and IFN-γ production by memory CD4+ T cells [J].
Caron, G ;
Duluc, D ;
Frémaux, I ;
Jeannin, P ;
David, C ;
Gascan, H ;
Delneste, Y .
JOURNAL OF IMMUNOLOGY, 2005, 175 (03) :1551-1557
[9]   TLR9 ligand enhances proliferation of rat CD4+ T cell and modulates suppressive activity mediated by CD4+ CD25+ T cell [J].
Chiffoleau, Elise ;
Heslan, Jean-Marie ;
Heslan, Michele ;
Louvet, Cedric ;
Condamine, Thomas ;
Cuturi, Maria-Cristina .
INTERNATIONAL IMMUNOLOGY, 2007, 19 (02) :193-201
[10]   TLRs, NLRs and RLRs: a trinity of pathogen sensors that co-operate in innate immunity [J].
Creagh, Emma M. ;
O'Neill, Luke A. J. .
TRENDS IN IMMUNOLOGY, 2006, 27 (08) :352-357