上皮质激素及其受体作为一种新的丸系统,涉及到精子生成的发展
Ali AbuMadighem1, Eitan Rubin1, Eden Arazi1
1The Shraga Segal Dept. Microbiology, Immunology and Genetics, Israel; The Center of Advanced Research and Education in Reproduction (CARER), Israel; Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Life sciences
|February 20, 2025
概括
研究人员确定了黑色皮质素受体2 (MC2R) 作为精子干细胞 (SSC) 的新型标记物. 上皮质激素 (ACTH) 在体外给予显著促进了SSC发育和精子生成.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 内分泌学 在内分泌学.
背景情况:
- 精子干细胞 (SSC) 对于持续的精子生产至关重要.
- 识别特定的SSC标志物对于理解它们的生物学和生育能力的保护至关重要.
- 激素信号在SSC发育中的作用需要进一步阐明.
研究的目的:
- 为了确定SSC特有的新的功能性膜相关标记物.
- 为了研究SSCs的体外开发.
- 探索上腺皮质激素 (ACTH) 对SSCs的影响.
主要方法:
- 酶分离和光激活细胞分类 (FACS) 的精子细胞从小鼠的精子管 (STs).
- 用于基因表达分析的RNA测序 (RNAseq).
- 在体外甲基纤维素培养系统 (MCS) 用ACTH评估SSC的发展.
- 免疫光染色以定位人类和小鼠丸中的MC2R和ACTH.
主要成果:
- RNAseq在Thy1-阳性SSC中发现了高色皮质素受体2 (MC2R) 表达.
- 阳性MC2R细胞定位在ST外围,并与已知的SSC标记物 (PLZF,CDH1) 共同表达.
- 实验室内ACTH的使用显著增强了前微生物和中微生物/后微生物细胞的发育.
结论:
- 黑色皮质蛋白受体2 (MC2R) 被确定为一种新的,功能性的,与膜相关的SSC标记物.
- ACTH系统代表了精子生成的新调节途径.
- MC2R和ACTH系统对男性生育能力保护策略有潜力.
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