MicroRNA let-7c regulates macrophage polarization.
MicroRNA let-7c regulates macrophage polarization.
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DOI:
10.4049/jimmunol.1202496
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发表时间:
2013-06-15
期刊:
影响因子:
--
通讯作者:
Liu G
中科院分区:
文献类型:
--
作者:
Banerjee S;Xie N;Cui H;Tan Z;Yang S;Icyuz M;Abraham E;Liu G
Macrophages demonstrate a high level of plasticity, with the ability to undergo dynamic transition between M1 and M2 polarized phenotypes. The role of miRNAs in regulating macrophage polarization has been largely undefined. In this study, we found that microRNA let-7c is expressed at a higher level in M-BMM (M2 macrophages) than in GM-BMM (M1 macrophages). let-7c levels are also greater in alveolar macrophages from fibrotic lungs as compared to those from normal lungs. let-7c expression was decreased when M-BMM converted to GM-BMM whereas increased when GM-BMM converted to M-BMM. LPS stimulation reduced let-7c expression in M-BMM. We found that overexpression of let-7c in GM-BMM diminished M1 phenotype expression while promoting polarization to the M2 phenotype. In contrast, knockdown of let-7c in M-BMM promoted M1 polarization, and diminished M2 phenotype expression. We found that let-7c targets C/EBP-δ, a transcriptional factor that plays an important role in inflammatory response. Furthermore, we found that let-7c regulates bactericidal and phagocytic activities of macrophages, two functional phenotypes implicated in macrophage polarization. Our data suggest that the microRNA let-7c plays an important role in regulating macrophage polarization.
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DOI:
10.1016/j.bbagrm.2012.06.001
发表时间:
2012-11
影响因子:
4.7
作者:
Hou, Weihong;Tian, Qing;Steuerwald, Nury M.;Schrum, Laura W.;Bonkovsky, Herbert L.
通讯作者:
Bonkovsky, Herbert L.
DOI:
10.4049/jimmunol.0804362
发表时间:
2009-08-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Hu G;Zhou R;Liu J;Gong AY;Eischeid AN;Dittman JW;Chen XM
通讯作者:
Chen XM
影响因子:
4.4
作者:
Lacey, Derek C.;Achuthan, Adrian;Hamilton, John A.
通讯作者:
Hamilton, John A.
影响因子:
5.5
作者:
Fleetwood, Andrew J.;Dinh, Hang;Hamilton, John A.
通讯作者:
Hamilton, John A.
影响因子:
64.5
作者:
Grishok, A;Pasquinelli, AE;Mello, CC
通讯作者:
Mello, CC