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. 2024 Oct;55(5):909-925.
doi: 10.1007/s10735-024-10240-2. Epub 2024 Aug 12.

Exploration of N6-methyladenosine modification in ascorbic acid 2-glucoside constructed stem cell sheets

Zhiye Yao  1 , Liang Chen  1 , Yumei Liu  1 , Bowen Feng  2 , Caisheng Liu  3 , Yanling Chen  1 , Shaoru He  4
Affiliations

Exploration of N6-methyladenosine modification in ascorbic acid 2-glucoside constructed stem cell sheets

Zhiye Yao et al. J Mol Histol. 2024 Oct.

Abstract

The aim of this study was to explore the mechanism of bone marrow stem cells (BMSCs) sheets constructed with different doses of Ascorbic acid 2-glucoside (AA-2G) in conjunction with N6-methyladenosine (m6A)-associated epigenetic genes analysing transcriptome sequencing data. Experimental groups of BMSCs induced by different AA-2G concentrations were set up, and the tissue structures were observed by histological staining of cell slices and scanning electron microscopy. Expression patterns of DEGs were analysed using short-time sequence expression mining software, and DEGs associated with m6A were selected for gene ontology analysis and pathway analysis. The protein-protein interaction (PPI) network of DEGs was analysed and gene functions were predicted using the search tool of the Retrieve Interacting Genes database. There were 464 up-regulated DEGs and 303 down-regulated DEGs between the control and high-dose AA-2G treatment groups, and 175 up-regulated DEGs and 37 down-regulated DEGs between the low and high-dose AA-2G treatment groups. The profile 7 exhibited a gradual increase in gene expression levels over AA-2G concentration. In contrast, profile 0 exhibited a gradual decrease in gene expression levels over AA-2G concentration. In the PPI network of m6A-related DEGs in profile 7, the cluster of metallopeptidase inhibitor 1 (Timp1), intercellular adhesion molecule 1 (Icam1), insulin-like growth factor 1 (Igf1), matrix metallopeptidase 2 (Mmp2), serpin family E member 1 (Serpine1), C-X-C motif chemokine ligand 2 (Cxcl2), galectin 3 (Lgals3) and angiopoietin-1 (Angpt1) was the top hub gene cluster. The expression of all hub genes was significantly increased after AA-2G intervention (P < 0.05), and the expression of Igf1 and Timp1 increased with increasing intervention concentration. The m6A epigenetic modifications were involved in the AA-2G-induced formation of BMSCs. Igf1, Serpine1 and Cxcl2 in DEGs were enriched for tissue repair, promotion of endothelial and epithelial proliferation and regulation of apoptosis.

Keywords: Ascorbic acid 2-glucoside; Bone marrow stem cells; N6-methyladenosine; Ribonucleic acid sequencing; Tissue repair.

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