LncRNA HOXA-AS2 regulates microglial polarization via recruitment of PRC2 and epigenetic modification of PGC-1α expression.
LncRNA HOXA-AS2 regulates microglial polarization via recruitment of PRC2 and epigenetic modification of PGC-1α expression.
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LncRNA HOXA-AS2 通过招募 PRC2 和 PGC-1 α 表达的表观遗传修饰来调节小胶质细胞极化
DOI:
10.1186/s12974-021-02267-z
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发表时间:
2021-09-12
影响因子:
9.3
通讯作者:
Xiao Q
中科院分区:
文献类型:
--
作者:
Yang X;Zhang Y;Chen Y;He X;Qian Y;Xu S;Gao C;Mo C;Chen S;Xiao Q
Microglia-mediated neuroinflammation plays an important role in Parkinson’s disease (PD), and it exerts proinflammatory or anti-inflammatory effects depending on the M1/M2 polarization phenotype. Hence, promoting microglia toward the anti-inflammatory M2 phenotype is a potential therapeutic approach for PD. Long noncoding RNAs (lncRNAs) are crucial in the progression of neurodegenerative diseases, but little is known about their role in microglial polarization in PD. In our study, we profiled the expression of lncRNAs in the peripheral blood mononuclear cells (PBMCs) of PD patients using a microarray. RT-qPCR was used to evaluate the lncRNA levels and mRNA levels of cytokines and microglial cell markers both in vitro and in vivo. RIP and ChIP assays were analyzed for the underlying mechanism of lncRNA regulating microglial polarization. We found that HOXA-AS2 was upregulated in the PBMCs of PD patients and negatively associated with peroxisome proliferator-activated receptor gamma coactivator-1a (PGC-1α) expression. Moreover, HOXA-AS2 knockdown significantly repressed microglial M1 polarization and promoted M2 polarization by regulating PGC-1α expression. Mechanistic investigations demonstrated that HOXA-AS2 could directly interact with polycomb repressive complex 2 (PRC2) and modulate the histone methylation of the promoter of PGC-1α. Our findings identify the upregulated lncRNA HOXA-AS2 promotes neuroinflammation by regulating microglial polarization through interacts with the PRC2 complex and epigenetically silencing PGC-1α. HOXA-AS2 may be a potential therapeutic target for microglia-mediated neuroinflammation in patients with PD. The online version contains supplementary material available at 10.1186/s12974-021-02267-z.
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影响因子:
11
作者:
HUGHES, AJ;DANIEL, SE;LEES, AJ
通讯作者:
LEES, AJ
影响因子:
168.9
作者:
Kalia, Lorraine V.;Lang, Anthony E.
通讯作者:
Lang, Anthony E.
影响因子:
9.3
作者:
Li Y;Yin C;Liu B;Nie H;Wang J;Zeng D;Chen R;He X;Fang J;Du J;Liang Y;Jiang Y;Fang J;Liu B
通讯作者:
Liu B
影响因子:
11.2
作者:
Eschbach, Judith;von Einem, Bjoern;Mueller, Kathrin;Bayer, Hanna;Scheffold, Annika;Morrison, Bradley E.;Rudolph, K. Lenhard;Thal, Dietmar R.;Witting, Anke;Weydt, Patrick;Otto, Markus;Fauler, Michael;Liss, Birgit;McLean, Pamela J.;La Spada, Albert R.;Ludolph, Albert C.;Weishaupt, Jochen H.;Danzer, Karin M.
通讯作者:
Danzer, Karin M.
影响因子:
64.5
作者:
Kopp F;Mendell JT
通讯作者:
Mendell JT