线粒体AR过度活化与子宫乳线粒体缺陷相结合,导致PCOS相关的怀孕流产
Yuehui Zhang1,2, Min Hu2,3,4, Linus R Shao2
1Department of Obstetrics and Gynecology, Key Laboratory and Unit of Infertility in Chinese Medicine, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China.
The Journal of endocrinology
|January 16, 2026
概括
多囊性卵巢综合征 (PCOS) 与由于子宫细胞中的线粒体雄激素受体 (AR) 功能障碍导致的怀孕流产有关. 在大鼠模型中,用花胺治疗恢复了线粒体功能,并预防了胎儿损失.
科学领域:
- 生殖生物学 生殖生物学
- 线粒体医学是指线粒体医学.
- 内分泌学 在内分泌学.
背景情况:
- 核受体 (AR) 失调是多囊性卵巢综合征 (PCOS) 病理生理学的核心.
- 线粒体功能障碍与PCOS病原体有关,并导致不良妊娠结果.
- AR也局限于线粒体,这表明它在线粒体功能中的作用.
研究的目的:
- 在PCOS期间调查线粒体AR在子宫中的作用.
- 探索与PCOS相关的怀孕损失中高雄性,AR和线粒体功能障碍之间的联系.
- 评估AR阻塞在缓解PCOS相关妊娠并发症方面的治疗潜力.
主要方法:
- 在人类和老鼠子宫组织上使用了亚细胞分离,西部斑,qPCR,电子显微镜和ELISA.
- 研究了PCOS患者和由5α-二二 (DHT) 和胰岛素暴露引起的PCOS的小鼠模型.
- 在大鼠模型中评估了花胺治疗的效果.
主要成果:
- 经过PCOS患者和DHT+胰岛素暴露的老鼠在子宫组织中增加了AR mRNA和线粒体AR蛋白.
- 在PCOS和暴露的老鼠中,线粒体呈现出无组织的状体,线粒体DNA (mtDNA) 减少,线粒体生物发生和动态受损.
- 在老鼠中,富lutamide 治疗可以预防胎儿损失,改善线粒体形态,并恢复细胞能量水平 (NAD 和 ATP).
结论:
- 线粒体AR存在于子宫中,其失调有助于PCOS的妊娠损失.
- 脱落细胞中高雄性诱导的,依赖于AR的线粒体功能障碍是PCOS妊娠丧失的关键机制.
- 向AR可能为管理PCOS妊娠并发症提供治疗策略.
相关概念视频
Meiosis vs. Mitosis
69.4K
Cell division is necessary for growth and reproduction in organisms. Mitosis aids cell growth and development by dividing somatic cells. In contrast, meiosis causes the division of germ cells and plays an essential role in sexual reproduction. Due to their unique functional requirements, mitosis and meiosis differ from each other in multiple aspects.
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
69.4K
Animal Mitochondrial Genetics
9.0K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.0K
Electron Transport Chain: Complex I and II
18.5K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
18.5K
Ovarian Cycle
3.5K
The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
3.5K
Teratogenicity
4.0K
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.0K
Disorders of the Female Reproductive System
3.9K
The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
3.9K


