Journal ArticleDOI
m6 A demethylase Fto regulates the TNF-α-induced inflammatory response in cementoblasts.
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TLDR
A TNF-α-induced decrease in the expression of Fto might play a critical role in the inflammatory response in cementoblasts, and knockdown of F to might upregulate theinflammatory response.Abstract:
OBJECTIVE
Apical periodontitis is the most frequently occurring pathological lesion. Fat mass and obesity-associated protein (Fto) is the first identified RNA N6-methyladenosine demethylase. However, whether Fto regulates apical periodontitis remains unclear. This study aimed to explore the mechanisms of Fto in the tumor necrosis factor-α (TNF-α)-induced inflammatory response.
MATERIALS AND METHODS
We established an apical periodontitis model. An immortalized cementoblast cell line (OCCM-30) cells were exposed to TNF-α. Fto, Il6, Mcp1, and Mmp9 expressions were assessed by qRT-PCR. We knocked down Fto using lentiviruses and detected TNF-α-induced inflammation-related gene expressions and mRNA stability.
RESULTS
Mice with apical periodontitis showed downregulation of Fto expression. OCCM-30 cells exposed to TNF-α showed an upregulation of inflammation-related genes with a decrease in Fto. Furthermore, knockdown of Fto promoted the expressions of Il6, Mcp1, and Mmp9 in TNF-α-treated OCCM-30 cells as compared with negative control cells, whereas it did not affect the mRNA stability. Interestingly, Fto knockdown activated the p65, p38, and ERK1/2 pathways, and it slightly activated the JNK signaling pathway after TNF-α administration in OCCM-30 cells.
CONCLUSION
A TNF-α-induced decrease in the expression of Fto might play a critical role in the inflammatory response in cementoblasts, and knockdown of Fto might upregulate the inflammatory response.read more
Citations
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Journal ArticleDOI
Comprehensive analysis of differences in N6-methyladenosine RNA methylomes in Helicobacter pylori infection
Huan Li,Jiahui Lin,S. Cheng,Jing-Shu Chi,Ju Luo,Yu Tang,Wen-Xia Zhao,Yufeng Shu,Xiaoming Liu,Can-xia Xu +9 more
TL;DR: In this paper , the authors measured the overall level changes of m6A methylation of RNA under H. pylori infection through in vitro and in vivo experiment and found that H.pylori-infected groups had higher m6a modification level.
References
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Journal ArticleDOI
A common variant in the FTO gene is associated with body mass index and predisposes to childhood and adult obesity
Timothy M. Frayling,Nicholas J. Timpson,Michael N. Weedon,Eleftheria Zeggini,Eleftheria Zeggini,Eleftheria Zeggini,Rachel M. Freathy,Cecilia M. Lindgren,John R. B. Perry,Katherine S. Elliott,Katherine S. Elliott,Hana Lango,Nigel W. Rayner,Nigel W. Rayner,Nigel W. Rayner,Beverley M. Shields,Lorna W. Harries,Jeffrey C. Barrett,Jeffrey C. Barrett,Sian Ellard,Christopher J. Groves,Christopher J. Groves,Bridget A. Knight,Ann-Marie Patch,Andy R Ness,Shah Ebrahim,Debbie A Lawlor,Susan M. Ring,Yoav Ben-Shlomo,Marjo-Riitta Järvelin,Marjo-Riitta Järvelin,Ulla Sovio,Ulla Sovio,Amanda J. Bennett,Amanda J. Bennett,David Melzer,Luigi Ferrucci,Ruth J. F. Loos,Inês Barroso,Nicholas J. Wareham,Fredrik Karpe,Fredrik Karpe,Katharine R. Owen,Katharine R. Owen,Lon R. Cardon,Mark Walker,Graham A. Hitman,Graham A. Hitman,Colin N. A. Palmer,Colin N. A. Palmer,Alex S. F. Doney,Alex S. F. Doney,Andrew D. Morris,George Davey Smith,Andrew T. Hattersley,Mark I. McCarthy +55 more
TL;DR: A genome-wide search for type 2 diabetes–susceptibility genes identified a common variant in the FTO (fat mass and obesity associated) gene that predisposes to diabetes through an effect on body mass index (BMI).
Journal ArticleDOI
Topology of the human and mouse m6A RNA methylomes revealed by m6A-seq
Dan Dominissini,Sharon Moshitch-Moshkovitz,Schraga Schwartz,Schraga Schwartz,Mali Salmon-Divon,Lior Ungar,Sivan Osenberg,Sivan Osenberg,Karen Cesarkas,Jasmine Jacob-Hirsch,Ninette Amariglio,Martin Kupiec,Rotem Sorek,Gideon Rechavi,Gideon Rechavi +14 more
TL;DR: The findings suggest that RNA decoration by m6A has a fundamental role in regulation of gene expression, and a subset of stimulus-dependent, dynamically modulated sites is identified.
Journal ArticleDOI
Comprehensive Analysis of mRNA Methylation Reveals Enrichment in 3′ UTRs and near Stop Codons
Kate D. Meyer,Yogesh Saletore,Paul Zumbo,Olivier Elemento,Christopher E. Mason,Samie R. Jaffrey +5 more
TL;DR: A method is presented for transcriptome-wide m(6)A localization, which combines m( 6)A-specific methylated RNA immunoprecipitation with next-generation sequencing (MeRIP-Seq) and reveals insights into the epigenetic regulation of the mammalian transcriptome.
Journal ArticleDOI
N6-methyladenosine-dependent regulation of messenger RNA stability
Xiao Wang,Zhike Lu,Adrian Gomez,Gary C. Hon,Yanan Yue,Dali Han,Ye Fu,Marc Parisien,Qing Dai,Guifang Jia,Bing Ren,Tao Pan,Chuan He +12 more
TL;DR: It is shown that m6A is selectively recognized by the human YTH domain family 2 (YTHDF2) ‘reader’ protein to regulate mRNA degradation and established the role of YTH DF2 in RNA metabolism, showing that binding of Y THDF2 results in the localization of bound mRNA from the translatable pool to mRNA decay sites, such as processing bodies.
Journal ArticleDOI
N6-methyladenosine in nuclear RNA is a major substrate of the obesity-associated FTO.
Guifang Jia,Ye Fu,Xu Zhao,Xu Zhao,Qing Dai,Guanqun Zheng,Ying Yang,Ying Yang,Chengqi Yi,Tomas Lindahl,Tao Pan,Yun-Gui Yang,Yun-Gui Yang,Chuan He +13 more
TL;DR: FTO exhibits efficient oxidative demethylation activity of abundant N6-methyladenosine (m6A) residues in RNA in vitro, and it is shown that FTO partially colocalizes with nuclear speckles, supporting m6A in nuclear RNA as a physiological substrate of FTO.