在老鼠老化期间,丸中LINC-RSAS长非编码RNA的细胞类型特异和差异表达下降
Ajay Kumar Danga1, Sukhleen Kour1,2, Anita Kumari1
1Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
Biogerontology
|February 14, 2024
概括
长期跨基因非编码重复丰富的感觉反义 (LINC-RSAS) RNA表达在老老鼠丸中下降. 这种LINC-RSAS的下降可能会导致与年龄相关的丸功能障碍和降低生育能力.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生殖生物学 生殖生物学
背景情况:
- 长非编码RNAs (lncRNAs) 是基因表达和细胞过程的关键调节者.
- 衰老是一种与生理衰退和与年龄有关的疾病相关的自然过程.
- 哺乳动物的丸是复杂的器官,对生殖和男性激素的产生至关重要.
研究的目的:
- 研究老鼠丸中LINC-RSASRNA的表达和局部的与年龄相关的变化.
- 探索LINC-RSAS在丸细胞功能和衰老中的潜在作用.
主要方法:
- 在不同年龄的老鼠丸中对LINC-RSASRNA表达的定量分析.
- 在初级精子细胞,莱迪格细胞和塞尔托利细胞中进行细胞类型特异性表达分析.
- 对基因组DNA甲基化模式的评估.
- 使用培养人类细胞系进行体外研究,以检查LINC-RSAS功能.
主要成果:
- 在老鼠丸中,LINC-RSAS表达遵循从未成熟到成年阶段的增加模式,然后在老老鼠中下降.
- 丸中的基因组DNA甲基化反映了LINC-RSAS的表达模式.
- 在成年大鼠的初级精子细胞,莱迪格细胞和塞尔托利细胞中观察到更高的LINC-RSAS表达.
- 人类细胞系中LINC-RSAS过度表达表明它在细胞周期控制和细胞亡中起作用.
结论:
- 在成年大鼠中,LINC-RSAS RNA在关键丸细胞类型的分子生理学中发挥作用.
- 与LINC-RSAS表达的年龄相关的下降与衰老期间丸功能下降有关.
- LINC-RSAS可能是一个潜在的生物标志物或治疗目标,用于与年龄相关的丸衰退.
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