Folic acid derived-P5779 mimetics regulate DAMP-mediated inflammation through disruption of HMGB1:TLR4:MD-2 axes.

Folic acid derived-P5779 mimetics regulate DAMP-mediated inflammation through disruption of HMGB1:TLR4:MD-2 axes.
复制标题

DOI:
10.1371/journal.pone.0193028
复制
发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Al-Abed Y
Al-Abed Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Sun S;He M;Wang Y;Yang H;Al-Abed Y

文献摘要

参考文献

被引文献

相似文献

高迁移率族蛋白1(HMGB1)是一种损伤相关分子模式(DAMP)蛋白,介导感染或损伤后的炎症反应。此前,我们报道了一种HMGB1的多肽抑制剂(P5779),它通过直接阻断HMGB1/MD-2结合而发挥作用。在这里,指纹相似性搜索和对接研究表明,叶酸衍生药物的功能是P5779模拟表位。分子动力学(MD)模拟研究表明,叶酸模拟了P5779在TLR4和MD-2交叉处的结合。在表面等离子体共振(SPR)研究中,这些药物显示与TLR4/MD-2直接结合,但不与HMGB1结合。此外,这些P5779模拟表位抑制HMGB1和MD-2的结合,并在纳摩尔范围内抑制HMGB1诱导的人巨噬细胞释放肿瘤坏死因子。我们从我们的发现断言,它们的抗炎作用可能是通过TLR4依赖的信号发挥作用的。
High mobility group box 1 (HMGB1) is a damage-associated molecular pattern (DAMP) protein that mediates inflammatory responses after infection or injury. Previously, we reported a peptide inhibitor of HMGB1 (P5779) that acts by directly interrupting HMGB1/MD-2 binding. Here, fingerprint similarity search and docking studies suggest folic acid derived-drugs function as P5779 mimetopes. Molecular dynamic (MD) simulation studies demonstrate that folic acid mimics the binding of P5779 at the TLR4 and MD-2 intersection. In surface plasmon resonance (SPR) studies, these drugs showed direct binding to TLR4/MD-2 but not HMGB1. Furthermore, these P5779 mimetopes inhibit HMGB1 and MD-2 binding and suppress HMGB1-induced TNF release in human macrophages in the nanomolar range. We assert from our findings that their demonstrated anti-inflammatory effects may be working through TLR4-dependent signaling.
DOI: 10.1016/j.jim.2004.04.019
发表时间: 2004-06-01
影响因子: 2.2
作者:
Li, JH;Wang, HC;Yang, H
通讯作者: Yang, H
DOI: 10.1063/1.445869
发表时间: 1983-01-01
影响因子: 4.4
作者:
JORGENSEN, WL;CHANDRASEKHAR, J;KLEIN, ML
通讯作者: KLEIN, ML
DOI: 10.1152/ajpcell.00616.2005
发表时间: 2006-12-01
影响因子: 5.5
作者:
Bell, Charles W.;Jiang, Weiwen;Pisetsky, David S.
通讯作者: Pisetsky, David S.
DOI: 10.1021/jm030644s
发表时间: 2004-03-25
影响因子: 7.3
作者:
Halgren, TA;Murphy, RB;Banks, JL
通讯作者: Banks, JL
DOI: 10.1021/jm051256o
发表时间: 2006-10-19
影响因子: 7.3
作者:
Friesner, Richard A.;Murphy, Robert B.;Mainz, Daniel T.
通讯作者: Mainz, Daniel T.