相关实验视频
Updated: Sep 13, 2025

08:20
A Hyperandrogenic Mouse Model to Study Polycystic Ovary Syndrome
Published on: October 2, 2018
11.4K
通过高雄激素作用介导的YAP激活驱动PCOS中的卵巢炎症和热:对卵泡功能障碍的含义
Tianyue Xu1, Yu Xiang1, Zichao Huang1
1Reproduction Medicine Centre, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China.
Journal of ovarian research
|July 31, 2025
概括
多囊性卵巢综合征 (PCOS) 中的过高雄激素主义通过激活YAP增加卵巢炎症,导致卵泡功能受损. 抑制YAP可能会恢复PCOS的卵巢健康.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 多囊性卵巢综合征 (PCOS) 的特点是高雄性和慢性炎症,导致卵巢功能障碍.
- 在PCOS中,高雄性和炎症之间的确切联系尚未完全理解.
- 河马通路,特别是YAP,与炎症反应有关.
研究的目的:
- 调查YAP在高雄激素诱导的卵巢炎症和PCOS中的炎中所扮演的角色.
- 在PCOS模型中探索YAP抑制的治疗潜力.
主要方法:
- 已确立的体内PCOS小鼠模型使用脱水氨 (DHEA) 并用YAP抑制剂Verteporfin (VP) 治疗.
- 使用用治疗的KGN细胞创建了体外PCOS模型,通过lentivirus进行YAP敲击.
- 在卵巢组织和KGN细胞中评估了YAP,炎症和热的水平.
主要成果:
- 在小鼠卵巢中,DHEA治疗增加了YAP,炎症和 pyroptosis; 维特波芬逆转了这些效应.
- 丸激素在KGN细胞中增加了YAP,炎症和热.
- 在KGN细胞中YAP的淘汰减少了激素诱导的炎症和热.
结论:
- 在PCOS中,过高雄激素性高调节核YAP,加剧卵巢炎症和热.
- YAP激活会破坏卵巢炎症微环境,损害卵泡功能.
- 针对YAP可能为PCOS相关的卵巢功能障碍提供治疗策略.
相关概念视频
Oogenesis
64.4K
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
64.4K
Hormonal Control of the Ovarian Cycle
2.9K
The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
2.9K
Abnormal Proliferation
4.6K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K
GPCRs Regulate Adenylyl Cylase Activity
5.9K
Some GPCRs transmit signals through adenylyl cyclase (AC), a transmembrane enzyme. AC helps synthesize second messenger cyclic adenosine monophosphate (cAMP). AC catalyzes cyclization reaction and converts ATP to cAMP by releasing a pyrophosphate. The pyrophosphate is further hydrolyzed to phosphate by the enzyme pyrophosphatase, which drives cAMP synthesis to completion. However, cAMP is rapidly degraded to 5′ AMP by the enzymes phosphodiesterase (PDE), preventing overstimulation of...
5.9K
Folliculogenesis
1.1K
Folliculogenesis is the development of ovarian follicles, the specialized structures within the ovarian cortex where oogenesis, or egg development, occurs. This process is essential for female reproductive health and begins during fetal development when primordial follicles are formed. Each primordial follicle comprises a primary oocyte in the center, surrounded by a single layer of squamous pre-granulosa cells. These follicles remain dormant in late prophase I of meiosis until triggered by...
1.1K
PI3K/mTOR/AKT Signaling Pathway
4.0K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
4.0K

