Catalase, a therapeutic target in the reversal of estrogen-mediated aging.

Catalase, a therapeutic target in the reversal of estrogen-mediated aging.
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过氧化氢酶,逆转雌激素介导的衰老的治疗靶点。

DOI:
10.1016/j.ymthe.2021.06.020
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发表时间:
2022
期刊:
Molecular therapy : the journal of the American Society of Gene Therapy
影响因子:
--
通讯作者:
Glassberg,MarilynK
Glassberg,MarilynK
中科院分区:
--
文献类型:
--
作者:
Elliot,SharonJ;Catanuto,Paola;Pereira-Simon,Simone;Xia,Xiaomei;Pastar,Irena;Thaller,Seth;Head,CheyanneR;Stojadinovic,Olivera;Tomic-Canic,Marjana;Glassberg,MarilynK

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尽管人们对年龄相关过程的逆转越来越感兴趣,但关于绝经后相关雌激素丢失对细胞功能的影响的数据却很少。我们研究了从年龄小于45岁(绝经前,pre-hASC)或年龄大于55岁(绝经后,post-hASC)的女性中分离的人脂肪间充质干细胞(hASC)。在这项研究中,我们提供了概念证明,可以逆转ASCs与年龄相关的无效功能,以提高其促进组织修复的能力。我们发现hASC后雌激素受体表达减少,雌激素受体活化减少,对17β-雌二醇的敏感性降低。与前hASC相比,这与抗氧化剂(过氧化氢酶和超氧化物歧化酶[SOD]表达)减少和氧化应激增加相关。hASC后过氧化氢酶表达的增加恢复了雌激素受体(ER)的表达及其促进组织修复的功能能力,如人skinex体内愈合和肺损伤的体内小鼠模型所示。我们的研究结果表明,17β-雌二醇下降对hASCs功能的影响可能是可逆的,通过改变氧化应激/抗氧化剂的组成。
Despite increasing interest in the reversal of age-related processes, there is a paucity of data regarding the effects of post-menopausal-associated estrogen loss on cellular function. We studied human adipose-derived mesenchymal stem cells (hASCs) isolated from women younger than 45 years old (pre-menopause, pre-hASC) or older than 55 years old (post-menopause, post-hASC). In this study, we provide proof of concept that the age-related ineffective functionality of ASCs can be reversed to improve their ability in promoting tissue repair. We found reduced estrogen receptor expression, decreased estrogen receptor activation, and reduced sensitivity to 17β-estradiol in post-hASCs. This correlated with decreased antioxidants (catalase and superoxide dismutase [SOD] expression) and increased oxidative stress compared with pre-hASCs. Increasing catalase expression in post-hASCs restored estrogen receptor (ER) expression and their functional capacity to promote tissue repair as shown in human skinex vivowound healing andin vivomouse model of lung injury. Our results suggest that the consequences of 17β-estradiol decline on the function of hASCs may be reversible by changing the oxidative stress/antioxidant composition.
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