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Exploring the cell signalling in hepatocyte differentiation

机译:探索肝细胞分化中的细胞信号传导

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The liver is the second largest organ in the human body and is responsible for several functions that directly contribute to homeostasis. Hepatocytes are the main parenchymal liver cells that regulate multiple biochemical and metabolic functions and the synthesis of substances important to the body. Mesenchymal stem cells (MSCs) are a group of stem cells derived from the mesoderm, which can be obtained from various tissues. Under certain conditions, MSCs can differentiate into several cell types, including hepatocytes. Post-transcriptional regulations of liver development signalling and hepatocyte differentiation have been demonstrated. At the post-transcriptional level, microRNAs have emerged as precursors for determining cell fate during differentiation. MicroRNAs (miRNAs) are small non-coding RNAs involved in the post-transcriptional regulation of gene expression. They can determine the stem cell fate by repressing the translation of target mRNAs. In this review, we outline signalling pathways involved in stem cell differentiation to hepatocytes and its interplay with liver development. Hepatic differentiation models in two-dimensional and three-dimensional cultures used to analyse signalling mechanisms will be described. We also highlight the possible miRNAs involved in this process and the transdifferentiation signalling mechanisms present in hepatocytes. (C) 2016 Elsevier Inc. All rights reserved.
机译:肝脏是人体第二大器官,负责多种直接促进体内平衡的功能。肝细胞是主要的实质肝细胞,可调节多种生化和代谢功能以及对人体重要的物质的合成。间充质干细胞(MSC)是一组源自中胚层的干细胞,可以从各种组织中获得。在某些条件下,MSC可以分化为几种细胞类型,包括肝细胞。肝脏发育信号和肝细胞分化的转录后调控已得到证明。在转录后水平,microRNA已成为确定分化过程中细胞命运的前体。 MicroRNA(miRNA)是参与基因表达的转录后调控的小型非编码RNA。他们可以通过抑制靶标mRNA的翻译来确定干细胞的命运。在这篇综述中,我们概述了干细胞向肝细胞分化及其与肝脏发育相互作用的信号通路。将描述用于分析信号传导机制的二维和三维文化中的肝分化模型。我们还强调了可能参与此过程的miRNA和肝细胞中存在的转分化信号传导机制。 (C)2016 Elsevier Inc.保留所有权利。

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