Modulating the stem cell niche for tissue regeneration.

Modulating the stem cell niche for tissue regeneration.
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DOI:
10.1038/nbt.2978
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发表时间:
2014-08
影响因子:
46.9
通讯作者:
Watt, Fiona M.
Watt, Fiona M.
中科院分区:
工程技术1区
文献类型:
--
作者:
Lane, Steven W.;Williams, David A.;Watt, Fiona M.

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再生医学领域对于治疗目前难以治愈的疾病具有相当大的希望。虽然许多研究人员采用细胞移植的策略进行组织修复,但另一种治疗方法是操纵干细胞微环境或小生境,以促进内源性干细胞的修复。这个利基市场是高度动态的,有多种干预机会。这些包括施用靶向小生境的特定方面(如细胞-细胞和细胞-细胞外基质相互作用)的小分子、生物制剂或生物材料,以刺激干细胞的扩增或分化,或引起分化细胞向干细胞的逆转。然而,在治疗上靶向利基方面存在若干挑战,尤其是实现递送和反应的特异性。我们设想,再生医学中的成功治疗将涉及针对干细胞和小生境细胞的不同因素组合,根据干细胞-小生境相互作用的动力学在不同时间应用以实现恢复。
The field of regenerative medicine holds considerable promise for treating diseases that are currently intractable. Although many researchers are adopting the strategy of cell transplantation for tissue repair, an alternative approach to therapy is to manipulate the stem cell microenvironment, or niche, to facilitate repair by endogenous stem cells. The niche is highly dynamic, with multiple opportunities for intervention. These include administration of small molecules, biologics or biomaterials that target specific aspects of the niche, such as cell-cell and cell–extracellular matrix interactions, to stimulate expansion or differentiation of stem cells, or to cause reversion of differentiated cells to stem cells. Nevertheless, there are several challenges in targeting the niche therapeutically, not least that of achieving specificity of delivery and responses. We envisage that successful treatments in regenerative medicine will involve different combinations of factors to target stem cells and niche cells, applied at different times to effect recovery according to the dynamics of stem cell–niche interactions.
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