LncRNA GAS5 inhibits microglial M2 polarization and exacerbates demyelination.

LncRNA GAS5 inhibits microglial M2 polarization and exacerbates demyelination.
复制标题

LncRNA GAS5 抑制小胶质细胞 M2 极化并加剧脱髓鞘

DOI:
10.15252/embr.201643668
复制
发表时间:
2017-10
期刊:
影响因子:
7.7
通讯作者:
He C
He C
中科院分区:
生物学2区
文献类型:
--
作者:
Sun D;Yu Z;Fang X;Liu M;Pu Y;Shao Q;Wang D;Zhao X;Huang A;Xiang Z;Zhao C;Franklin RJ;Cao L;He C

文献摘要

参考文献

被引文献

相似文献

炎症的调节对于预防多发性硬化症(MS)的发展或复发至关重要。高M1极化与低M2极化小胶质细胞的比例失衡是MS的一个主要病理特征。在此,通过微阵列筛选,我们确定长链非编码RNA(lncRNA)GAS5是小胶质细胞极化的一种表观遗传调节因子。功能获得和缺失研究表明,GAS5抑制小胶质细胞M2极化。在移植的小胶质细胞中干扰GAS5可减轻实验性自身免疫性脑脊髓炎(EAE)的进展,并在溶血卵磷脂诱导的脱髓鞘模型中促进髓鞘再生。一致的是,在MS患者的阿米巴样小胶质细胞中发现了更高水平的GAS5。此外,功能研究表明,GAS5通过招募多梳抑制复合物2(PRC2)抑制TRF4的转录,TRF4是控制M2巨噬细胞极化的关键因子,从而抑制M2极化。因此,GAS5可能是治疗脱髓鞘疾病的一个有前景的靶点。
The regulation of inflammation is pivotal for preventing the development or reoccurrence of multiple sclerosis (MS). A biased ratio of high‐M1 versus low‐M2 polarized microglia is a major pathological feature of MS. Here, using microarray screening, we identify the long noncoding RNA (lncRNA) GAS5 as an epigenetic regulator of microglial polarization. Gain‐ and loss‐of‐function studies reveal that GAS5 suppresses microglial M2 polarization. Interference with GAS5 in transplanted microglia attenuates the progression of experimental autoimmune encephalomyelitis (EAE) and promotes remyelination in a lysolecithin‐induced demyelination model. In agreement, higher levels of GAS5 are found in amoeboid‐shaped microglia in MS patients. Further, functional studies demonstrate that GAS5 suppresses transcription of TRF4, a key factor controlling M2 macrophage polarization, by recruiting the polycomb repressive complex 2 (PRC2), thereby inhibiting M2 polarization. Thus, GAS5 may be a promising target for the treatment of demyelinating diseases.
DOI: 10.1523/jneurosci.1922-07.2007
发表时间: 2007-10-03
影响因子: 5.3
作者:
Ponomarev, Eugene D.;Maresz, Katarzyna;Dittel, Bonnie N.
通讯作者: Dittel, Bonnie N.
DOI: 10.1016/j.neuroscience.2008.07.062
发表时间: 2008-10-15
期刊: NEUROSCIENCE
影响因子: 3.3
作者:
Guo, W.;Xu, X.;Xiang, Z.
通讯作者: Xiang, Z.
DOI: 10.1038/nn.3469
发表时间: 2013-09
影响因子: 25
作者:
Miron, Veronique E.;Boyd, Amanda;Zhao, Jing-Wei;Yuen, Tracy J.;Ruckh, Julia M.;Shadrach, Jennifer L.;van Wijngaarden, Peter;Wagers, Amy J.;Williams, Anna;Franklin, Robin J. M.;Ffrench-Constant, Charles
通讯作者: Ffrench-Constant, Charles
DOI: 10.3390/genes6030484
发表时间: 2015-07-07
期刊: Genes
影响因子: 3.5
作者:
Pickard MR;Williams GT
通讯作者: Williams GT
DOI: 10.1038/nm1784
发表时间: 2008-07-01
期刊: NATURE MEDICINE
影响因子: 82.9
作者:
Faghihi, Mohammad Ali;Modarresi, Farzaneh;Wahlestedt, Claes
通讯作者: Wahlestedt, Claes