Zinc finger protein tristetraprolin interacts with CCL3 mRNA and regulates tissue inflammation.
Zinc finger protein tristetraprolin interacts with CCL3 mRNA and regulates tissue inflammation.
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DOI:
10.4049/jimmunol.1101149
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发表时间:
2011-09-01
期刊:
影响因子:
--
通讯作者:
Hwang PM
中科院分区:
文献类型:
--
作者:
Kang JG;Amar MJ;Remaley AT;Kwon J;Blackshear PJ;Wang PY;Hwang PM
Zinc finger protein tristetraprolin (TTP) modulates macrophage inflammatory activity by destabilizing cytokine mRNAs. Here, through a screen of TTP-bound mRNAs in activated human macrophages, we have identified CC chemokine ligand 3 (CCL3) mRNA as the most abundantly bound TTP target mRNA and have characterized this interaction via conserved AU-rich elements. Compared to the wild-type cells, TTP−/− macrophages produced higher levels of LPS-induced CCL3. In addition, the plasma level of CCL3 in TTP−/− mice was markedly higher than that in wild-type mice. To determine the in vivo significance of TTP-regulated CCL3, we generated CCL3−/− TTP−/− double knockout mice. Along with decreased proinflammatory cytokines in their paw joints, there were significant functional and histologic improvements in the inflammatory arthritis of TTP−/− mice when CCL3 was absent although cachexia, reflecting systemic inflammation, was notably unaffected. Furthermore, the marked exacerbation of aortic plaque formation caused by TTP deficiency in the APOE−/− mouse model of atherosclerosis was also rescued by disrupting CCL3. Taken together, our data indicate that the interaction between TTP and CCL3 mRNA plays an important role in modulating localized inflammatory processes in tissues that are dissociated from the systemic manifestations of chronic inflammation.
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DOI:
10.1016/j.bbrc.2006.05.093
发表时间:
2006-07-21
影响因子:
3.1
作者:
Chen, Yu-Ling;Huang, Ya-Lin;Chang, Ching-Jin
通讯作者:
Chang, Ching-Jin
DOI:
10.1016/j.biocel.2003.10.019
发表时间:
2004-10-01
影响因子:
4
作者:
Maurer, M;von Stebut, E
通讯作者:
von Stebut, E
影响因子:
4.9
作者:
Carrick DM;Lai WS;Blackshear PJ
通讯作者:
Blackshear PJ
影响因子:
24
作者:
Libby, Peter;Ridker, Paul M.;Hansson, Goran K.
通讯作者:
Hansson, Goran K.
影响因子:
30.5
作者:
通讯作者:
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