MD-2 binds to bacterial lipopolysaccharide

被引:26
作者
Viriyakosol, S
Kirkland, TN
Soldau, K
Tobias, PS
机构
[1] Univ Calif San Diego, Dept Pathol & Med, Dept Vet Affairs Med Ctr, San Diego, CA 92161 USA
[2] Scripps Res Inst, Dept Immunol, La Jolla, CA 92037 USA
来源
JOURNAL OF ENDOTOXIN RESEARCH | 2000年 / 6卷 / 06期
关键词
D O I
10.1177/09680519000060060201
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Many LPS binding proteins have been described, but the exact nature of the LPS receptors that signal cells remains unclear. MD-2 is a molecule that is found in association with Toll-like receptor 4, which has been shown to be a receptor for LPS. We have produced human MD-2 in baculovirus and tested it for LPS binding. MD-2 binds the lipid A region of LPS without the need for LPS binding protein. These data suggest that MD-2 may be binding LPS as part of the TLR4 receptor complex.
引用
收藏
页码:489 / 491
页数:3
相关论文
共 8 条
[1]   Toll-like receptor-4 mediates lipopolysaccharide-induced signal transduction [J].
Chow, JC ;
Young, DW ;
Golenbock, DT ;
Christ, WJ ;
Gusovsky, F .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1999, 274 (16) :10689-10692
[2]   Soluble CD14 enhances membrane CD14-mediated responses to peptidoglycan: Structural requirements differ from those for responses to lipopolysaccharide [J].
Dziarski, R ;
Viriyakosol, S ;
Kirkland, TN ;
Gupta, D .
INFECTION AND IMMUNITY, 2000, 68 (09) :5254-5260
[3]  
KIRKLAND TN, 1990, J BIOL CHEM, V265, P9520
[4]   Defective LPS signaling in C3H/HeJ and C57BL/10ScCr mice:: Mutations in Tlr4 gene [J].
Poltorak, A ;
He, XL ;
Smirnova, I ;
Liu, MY ;
Van Huffel, C ;
Du, X ;
Birdwell, D ;
Alejos, E ;
Silva, M ;
Galanos, C ;
Freudenberg, M ;
Ricciardi-Castagnoli, P ;
Layton, B ;
Beutler, B .
SCIENCE, 1998, 282 (5396) :2085-2088
[5]   MD-2, a molecule that confers lipopolysaccharide responsiveness on Toll-like receptor 4 [J].
Shimazu, R ;
Akashi, S ;
Ogata, H ;
Nagai, Y ;
Fukudome, K ;
Miyake, K ;
Kimoto, M .
JOURNAL OF EXPERIMENTAL MEDICINE, 1999, 189 (11) :1777-1782
[6]   LIPOPOLYSACCHARIDE-BINDING PROTEIN-MEDIATED COMPLEXATION OF LIPOPOLYSACCHARIDE WITH SOLUBLE CD14 [J].
TOBIAS, PS ;
SOLDAU, K ;
GEGNER, JA ;
MINTZ, D ;
ULEVITCH, RJ .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1995, 270 (18) :10482-10488
[7]   Structure-function analysis of CD14 as a soluble receptor for lipopolysaccharide [J].
Viriyakosol, S ;
Mathison, JC ;
Tobias, PS ;
Kirkland, TN .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2000, 275 (05) :3144-3149
[8]   CD14, A RECEPTOR FOR COMPLEXES OF LIPOPOLYSACCHARIDE (LPS) AND LPS BINDING-PROTEIN [J].
WRIGHT, SD ;
RAMOS, RA ;
TOBIAS, PS ;
ULEVITCH, RJ ;
MATHISON, JC .
SCIENCE, 1990, 249 (4975) :1431-1433