The potential role of integrin alpha 6 in human mesenchymal stem cells.

The potential role of integrin alpha 6 in human mesenchymal stem cells.
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DOI:
10.3389/fgene.2022.968228
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发表时间:
2022
影响因子:
3.7
通讯作者:
Chaudhry, G. Rasul
Chaudhry, G. Rasul
中科院分区:
生物学3区
文献类型:
--
作者:
Al-Obaide, Mohammed;Ishmakej, Albi;Brown, Christina;Mazzella, Matteo;Agosta, Patrina;Perez-Cruet, Mick;Chaudhry, G. Rasul

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人类间充质干细胞(MSC)是从各种成人和围产期组织中分离出来的。尽管来自多个来源的间充质干细胞表现出相似的形态和细胞表面标记,但它们的特性不同。在这项研究中,我们确定整合素 α 6 (ITGA6) 和 ITGA6 反义 RNA (ITGA6-AS1) 的表达与增殖、细胞大小和分化潜力相关。 MSCs中ITGA6的表达与ITGA6-AS1呈负相关。在脐带胎盘交界处、脐带组织和华顿胶中的 MSC 中,ITGA6 的表达较高,但 ITGA6-AS1 的表达较低。相比之下,胎盘间充质干细胞中 ITGA6 表达较低,而 ITGA6-AS1 表达较高。生物信息学分析表明,ITGA6 基因组 DNA 从反向链转录 ITGA6-AS1,与 ITGA6 外显子 2 重叠。此外,我们还确定了 ITGA6 的几个推定启动子 (P1-P10)。 ITGA6-P10 CG丰富,含有CGI。 EMBOSS Cpgplot 软件显示 CGI 长度为 180 bp,从 P10 序列的核苷酸 125 延伸到 304。我们认为间充质干细胞中 ITGA6 的转录后调控是由 ITGA6-AS1 控制的,这可能是导致人类 MSC 功能和细胞命运异质性的关键因素。这些结果可能为揭示 ITGA6 调节机制的研究提供进一步的动力,从而有助于维持或改善间充质干细胞的特性。
Human mesenchymal stem cells (MSCs) are isolated from various adult and perinatal tissues. Although mesenchymal stem cells from multiple sources exhibit similar morphology and cell surface markers, they differ in their properties. In this study, we determined that the expression of integrin alpha 6 (ITGA6) and ITGA6 antisense RNA (ITGA6-AS1) correlates with the proliferation, cell size, and differentiation potential. The expression of ITGA6 was inversely correlated with ITGA6-AS1 in MSCs. The expression of ITGA6 was higher, but ITGA6-AS1 was lower in MSCs from cord placenta junction, cord tissue, and Wharton’s jelly. In contrast, ITGA6 expression was lower, while ITGA6-AS1 was higher in MSCs from the placenta. The bioinformatic analysis showed that ITGA6 genomic DNA transcribes ITGA6-AS1 from the reverse strand, overlapping ITGA6 exon-2. Additionally, we identify several putative promoters (P1-P10) of ITGA6. ITGA6-P10 is CG rich and contains CGI. EMBOSS Cpgplot software revealed a CGI length of 180 bp that extends from nucleotide 125 to 304 of the P10 sequence. We suggest that the post-transcriptional regulation of the ITGA6 in mesenchymal stem cells is controlled by the ITGA6-AS1, which could be a critical factor responsible for the heterogeneity in function and cell fate of human MSCs. These results may provide further impetus for investigations to unravel the mechanisms of ITGA6 regulation that could help maintain or improve the properties of mesenchymal stem cells.
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发表时间: 2019-02-01
期刊: STEM CELLS
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影响因子: 4.3
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