Exosomal microRNA communication between tissues during organogenesis.

Exosomal microRNA communication between tissues during organogenesis.
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DOI:
10.1080/15476286.2017.1361098
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发表时间:
2017-12-02
期刊:
影响因子:
4.1
通讯作者:
Hoffman MP
Hoffman MP
中科院分区:
生物学3区
文献类型:
--
作者:
Hayashi T;Hoffman MP

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上皮-间充质相互作用是协调发育器官中多种细胞类型的细胞增殖、模式化和功能分化所必需的。这种微妙的协调依赖于各种分泌的分子,这些分子提供发育信号来介导这些组织相互作用。最近,据报道,成熟的间充质来源的microRNA(miRNAs)在胎鼠唾液腺装载到外泌体,并运输到上皮细胞,在那里他们影响祖细胞增殖。外泌体miRNAs调节参与祖细胞中DNA甲基化的基因的上皮表达以影响形态发生。因此,外泌体miRNA是跨越器官内组织边界的移动的遗传信号。这些发现提出了许多关于miRNA信号如何启动以协调器官发生以及它们是否是上皮-间充质相互作用的主调节剂的问题。使用外泌体miRNA用于受损成人器官再生的治疗应用的开发是一个有前途的研究领域。
Epithelial-mesenchymal interactions are required to coordinate cell proliferation, patterning, and functional differentiation of multiple cell types in a developing organ. This exquisite coordination is dependent on various secreted molecules that provide developmental signals to mediate these tissue interactions. Recently, it was reported that mature mesenchymal-derived microRNAs (miRNAs) in the fetal mouse salivary gland are loaded into exosomes, and transported to the epithelium where they influence progenitor cell proliferation. The exosomal miRNAs regulated epithelial expression of genes involved in DNA methylation in progenitor cells to influence morphogenesis. Thus, exosomal miRNAs are mobile genetic signals that cross tissue boundaries within an organ. These findings raise many questions about how miRNA signals are initiated to coordinate organogenesis and whether they are master regulators of epithelial-mesenchymal interactions. The development of therapeutic applications using exosomal miRNAs for the regeneration of damaged adult organs is a promising area of research.
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