AI Article Synopsis
- iPMSCs show promise for cell therapy but have limited ability to differentiate into fat cells compared to other stem cells.
- The research highlights that iPMSCs possess higher levels of genome-wide DNA methylation and specific epigenetic modifications that hinder fat cell development.
- Treatment with epigenetic modifiers like Decitabine and EPZ6438 can boost fat cell gene expression and differentiation in iPMSCs, which may enhance their therapeutic applications.
Article Abstract
As a novel type of mesenchymal stem cell, induced pluripotent stem cell-derived mesenchymal stem cells (iPMSCs) have huge potential for cell therapy. iPMSCs exhibited the typical characteristics of MSCs, whereas the tri-lineage differentiation potential is limited, especially the adipogenic propensity. Here, to reveal the molecular mechanism we carried out the epigenetic comparisons between the iPMSCs and the bone marrow-derived mesenchymal stem cells (BMSCs) and embryonic stem cell-derived mesenchymal stem cells (EMSCs). We found that the iPMSCs was significantly higher than the BMSCs in terms of genome-wide DNA methylation. Meanwhile, the adipogenic gene PPARγ promoter region existed hypermethylation. In addition, compared with EMSCs and BMSCs, iPMSCs had significant differences in the histones epigenetic modification of methylation and acetylation, especially high levels of histone 27 lysine trimethylation (H3K27me3). Furthermore, the epigenetic modifiers Decitabine and EPZ6438 effectively upregulated the gene expression of PPARγ and promoted the adipogenic differentiation of iPMSCs via chromatin remodeling. Taken together, our findings set new metrics to the applications for improving the efficiency and the therapeutic potential of iPMSCs.
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| http://dx.doi.org/10.1016/j.bbrc.2019.06.093 | DOI Listing |
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