Elements of the niche for adult stem cell expansion.

Elements of the niche for adult stem cell expansion.
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成人干细胞扩张的小众元素。

DOI:
10.1177/2041731417725464
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发表时间:
2017-01
影响因子:
8.2
通讯作者:
Cheema U
Cheema U
中科院分区:
工程技术1区
文献类型:
--
作者:
Redondo PA;Pavlou M;Loizidou M;Cheema U

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成体干细胞对组织稳态至关重要。这些细胞存在于组织的特定位置,称为壁龛,它保护成体干细胞的保真度,并通过生物物理、生化和细胞介导的机制调节其许多功能。人们对这些机制及其组成部分如何有助于维持干细胞的静止、自我更新、扩展和分化模式的了解越来越多。成体干细胞的体外扩增是理解干细胞生物学、组织工程和再生医学应用的有力工具。然而,这在技术上具有挑战性,因为成体干细胞从其原生微环境中移除会对其可持续性产生负面影响。在这篇综述中,我们概述了仿生生态位的特定元素,以及如何重建这些元素有助于成体干细胞的体外繁殖。
Adult stem cells are crucial for tissue homeostasis. These cells reside within exclusive locations in tissues, termed niches, which protect adult stem cell fidelity and regulate their many functions through biophysical-, biochemical- and cellular-mediated mechanisms. There is a growing understanding of how these mechanisms and their components contribute towards maintaining stem cell quiescence, self-renewal, expansion and differentiation patterns. In vitro expansion of adult stem cells is a powerful tool for understanding stem cell biology, and for tissue engineering and regenerative medicine applications. However, it is technically challenging, since adult stem cell removal from their native microenvironment has negative repercussions on their sustainability. In this review, we overview specific elements of the biomimetic niche and how recreating such elements can help in vitro propagation of adult stem cells.
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