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

Area of Science:

• Stem Cell Biology
• Epigenetics
• Biomaterials Engineering

Background:

• Bone marrow stem cells (BMSCs) are crucial for tissue regeneration.
• Ascorbic acid 2-glucoside (AA-2G) is a vitamin C derivative used to enhance cell culture.
• N6-methyladenosine (m6A) epigenetic modifications play a role in gene regulation and cellular processes.

Purpose of the Study:

• To investigate the mechanism of BMSC sheet construction using AA-2G.
• To analyze the role of m6A-associated epigenetic genes in AA-2G-induced BMSC differentiation.
• To identify key genes and pathways involved in BMSC sheet formation under AA-2G treatment.

Main Methods:

• BMSCs were cultured with varying concentrations of AA-2G.
• Transcriptome sequencing was performed to analyze gene expression patterns.
• Bioinformatic analyses, including differential gene expression (DEG) analysis, gene ontology, pathway analysis, and protein-protein interaction (PPI) network construction, were utilized.

Main Results:

• Significant numbers of up-regulated and down-regulated DEGs were identified between control and AA-2G treatment groups.
• Specific gene expression profiles showed concentration-dependent changes with AA-2G.
• A key cluster of hub genes (Timp1, Icam1, Igf1, Mmp2, Serpine1, Cxcl2, Lgals3, Angpt1) was identified in the m6A-related DEG PPI network, with Igf1 and Timp1 expression increasing with AA-2G concentration.

Conclusions:

• m6A epigenetic modifications are involved in AA-2G-induced BMSC sheet formation.
• AA-2G treatment significantly impacts gene expression in BMSCs.
• Enriched genes such as Igf1, Serpine1, and Cxcl2 are implicated in tissue repair, proliferation, and apoptosis regulation.