Unknown

Dataset Information

0

BMI1 promotes steroidogenesis through maintaining redox homeostasis in mouse MLTC-1 and primary Leydig cells.


ABSTRACT: In males, aging is accompanied by decline in serum testosterone levels due to impairment of testicular Leydig cells. The polycomb protein BMI1 has recently been identified as an anti-aging factor. In our previous study, BMI1 null mice showed decreased serum testosterone and Leydig cell population, excessive oxidative stress and p16/p19 signaling activation. However, a cause-and-effect relationship between phenotypes and pathways was not investigated. Here, we used the rescue approach to study the role of oxidative stress or p16/p19 in BMI1-mediated steroidogenesis. Our results revealed that treatment with antioxidant NAC, but not down-regulation of p16/p19, largely rescued cell senescence, DNA damage and steroidogenesis in BMI1-deficient mouse MLTC-1 and primary Leydig cells. Collectively, our study demonstrates that BMI1 orchestrates steroidogenesis mainly through maintaining redox homeostasis, and thus, BMI1 may be a novel and potential therapeutic target for treatment of hypogonadism.

SUBMITTER: Gao T 

PROVIDER: S-EPMC7469621 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

altmetric image

Publications

BMI1 promotes steroidogenesis through maintaining redox homeostasis in mouse MLTC-1 and primary Leydig cells.

Gao Tingting T   Lin Meng M   Shao Binbin B   Zhou Qiao Q   Wang Yufeng Y   Chen Xia X   Zhao Dan D   Dai Xiuliang X   Shen Cong C   Cheng Hongbo H   Yang Shenmin S   Li Hong H   Zheng Bo B   Zhong Xingming X   Yu Jun J   Chen Li L   Huang Xiaoyan X  

Cell cycle (Georgetown, Tex.) 20200628 15


In males, aging is accompanied by decline in serum testosterone levels due to impairment of testicular Leydig cells. The polycomb protein BMI1 has recently been identified as an anti-aging factor. In our previous study, BMI1 null mice showed decreased serum testosterone and Leydig cell population, excessive oxidative stress and p16/p19 signaling activation. However, a cause-and-effect relationship between phenotypes and pathways was not investigated. Here, we used the rescue approach to study th  ...[more]

Similar Datasets

| S-EPMC7378207 | biostudies-literature
| S-EPMC4669747 | biostudies-other
| S-EPMC4398762 | biostudies-literature
| S-EPMC7819258 | biostudies-literature
| S-EPMC8273516 | biostudies-literature
| S-EPMC3958737 | biostudies-literature
| S-EPMC10774265 | biostudies-literature
| S-EPMC5744559 | biostudies-literature
| S-EPMC7773251 | biostudies-literature
| S-EPMC2678421 | biostudies-literature