Cleaved high molecular weight kininogen stimulates JNK/FOXO4/MnSOD pathway for induction of endothelial progenitor cell senescence
Cleaved high molecular weight kininogen stimulates JNK/FOXO4/MnSOD pathway for induction of endothelial progenitor cell senescence
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裂解的高分子量激肽原刺激 JNK/FOXO4/MnSOD 途径诱导内皮祖细胞衰老
DOI:
10.1016/j.bbrc.2014.06.112
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发表时间:
2012-04
影响因子:
3.1
通讯作者:
Yi Wu
中科院分区:
文献类型:
--
作者:
Xuemei Zhu;Xichen Zheng;Yi Wu
ObjectiveRecently we have reported that cleaved high molecular weight kininogen (HKa) accelerates the onset of endothelial progenitor cells (EPCs) senescence by induction of reactive oxygen species (ROS). However, the mechanisms by which HKa induces production of ROS remain unknown. In this study, we have shown that HKa induces EPC senescence via stimulation of c-Jun N-terminal kinases (JNK)-related pathway.Methods and resultsTreatment of human EPCs with HKa for 72 h stimulated JNK phosphorylation at Thr183/Tyr185, and FOXO4 phosphorylation at Thr451, Concomitantly, upregulated the expression of MnSOD at protein and mRNA levels in a concentration-dependent manner. HKa increased intracellular level of H2O2, without affecting the expression of catalase. To narrow down the functional domain of HKa, recombinant proteins of human HK heavy chain (HC, 19–380aa) and light chain (LC, 390–644aa) were generated. HC, but not LC, increased senescence of EPCs and intracellular ROS levels, to a similar extent with HKa. Moreover, HC at 50 nM increased FOXO4 phosphorylation at Thr451 and the protein level of MnSOD in EPCs.ConclusionThese results demonstrate that HKa accelerates the onset of EPC senescence by stimulating JNK/FOXO4/MnSOD pathway, its effect is mediated by the HC.
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DOI:
--
发表时间:
2007
期刊:
Arteriosclerosis, thrombosis, and vascular biology
影响因子:
--
作者:
Yi Wu;V. Rizzo;Yuchuan Liu;Irma M. Sainz;N. G. Schmuckler;R. Colman
通讯作者:
Yi Wu;V. Rizzo;Yuchuan Liu;Irma M. Sainz;N. G. Schmuckler;R. Colman
DOI:
10.1016/s0021-9258(18)53802-3
发表时间:
1993-02
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
S. Kunapuli;R. D. Dela Cadena;R. Colman
通讯作者:
S. Kunapuli;R. D. Dela Cadena;R. Colman
影响因子:
37.8
作者:
Schmidt-Lucke, C;Rössig, L;Zeiher, AM
通讯作者:
Zeiher, AM
DOI:
10.1161/atvbaha.107.148759
发表时间:
2007-09
期刊:
Arteriosclerosis, Thrombosis, and Vascular Biology
影响因子:
--
作者:
Yi Wu;V. Rizzo;Yuchuan Liu;Irma M. Sainz;N. G. Schmuckler;R. Colman
通讯作者:
Yi Wu;V. Rizzo;Yuchuan Liu;Irma M. Sainz;N. G. Schmuckler;R. Colman
影响因子:
9.2
作者:
Schieber, Michael;Chandel, Navdeep S.
通讯作者:
Chandel, Navdeep S.