Rejuvenation of Mesenchymal Stem Cells to Ameliorate Skeletal Aging.

Rejuvenation of Mesenchymal Stem Cells to Ameliorate Skeletal Aging.
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间充质干细胞再生以改善骨骼老化。

DOI:
10.3390/cells12070998
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发表时间:
2023-03-24
期刊:
影响因子:
6
通讯作者:
--
中科院分区:
生物学2区
文献类型:
--
作者:

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高龄是许多慢性和衰弱骨骼疾病的共同危险因素,包括骨质疏松症和牙周炎。间充质干细胞具有多种衰老表型,包括开始衰老、固有的再生能力丧失以及通过分泌因子加重炎症微环境。本文就MSC衰老的分子机制和表观遗传学机制,如氧化应激积累、DNA损伤和线粒体功能障碍等方面的研究进展作一综述。衰老的MSCs加重了局部炎症,破坏了骨重建和骨脂平衡,从而促进了老年性骨病的进展。针对衰老的MSCs的各种年轻化策略可能为恢复骨骼衰老提供一种有前途的范例。
Advanced age is a shared risk factor for many chronic and debilitating skeletal diseases including osteoporosis and periodontitis. Mesenchymal stem cells develop various aging phenotypes including the onset of senescence, intrinsic loss of regenerative potential and exacerbation of inflammatory microenvironment via secretory factors. This review elaborates on the emerging concepts on the molecular and epigenetic mechanisms of MSC senescence, such as the accumulation of oxidative stress, DNA damage and mitochondrial dysfunction. Senescent MSCs aggravate local inflammation, disrupt bone remodeling and bone-fat balance, thereby contributing to the progression of age-related bone diseases. Various rejuvenation strategies to target senescent MSCs could present a promising paradigm to restore skeletal aging.
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