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- Title
Changes in N6-methyladenosine RNA methylomes of human periodontal ligament cells in response to inflammatory conditions.
- Authors
Xihong Zou; Chaoyi Liu; Xudong Wu; Zhiyao Yuan; Fuhua Yan
- Abstract
Objective: To investigate the changes in the m6A methylation modification profile of human periodontal ligament cells (hPDLCs) in response to inflammatory conditions. Background: Periodontitis is an infectious disease of the periodontal support tissue that leads to the loss of alveolar bone. HPDLCs are primary cells that can repair periodontal tissue defects caused by periodontitis. However, the inflammatory conditions induce inflammatory damage and decrease ossification of hPDLCs. This inflammatory response depends on genetic and epigenetic mechanisms, including m6A methylation. Methods: HPDLCs were cultured with osteogenic induction medium (NC group), while TNF-α (10 ng/mL) a nd I L-1β (5 ng/mL) were added to simulate inflammatory conditions (Inflam group). Then RNA-seq and MeRIP-seq analyses were performed to identify m6A methylation modification in the transcriptome range of hPDLCs. Results: The results showed that the osteogenic differentiation of hPDLCs was inhibited under inflammatory conditions. RNA-seq analysis also revealed that the decreased genes in response to inflammatory conditions were primarily annotated in processes associated with ossification. Compared with the NC group, differentially m6A-methylated genes were primarily enriched in histone modification processes. Among 145 histone modification genes, 25 genes have been reported to be involved in the regulation of osteogenic differentiation, and they include KAT6B, EP300, BMI1, and KDMs (KDM1A, KDM2A, KDM3A, KDM4B, and KDM5A). Conclusion: This study demonstrated that the m6A landscape of hPDLCs was changed in response to inflammation. M6A methylation differences among histone modification genes may act on the osteogenic differentiation of hPDLCs.
- Subjects
RNA analysis; INTERLEUKINS; CELL differentiation; BONE growth; INFLAMMATION; BONE resorption; PERIODONTITIS; OSTEOBLASTS; COMPARATIVE studies; METHYLATION; GENOMES; GENE expression profiling; HISTONES; RESEARCH funding; PERIODONTAL ligament
- Publication
Journal of Periodontal Research, 2023, Vol 58, Issue 2, p444
- ISSN
0022-3484
- Publication type
Article
- DOI
10.1111/jre.13105