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通过循环雌激素对海马转录基因组的差异调节
Javed Iqbal1,2, Maryam Bibi3, Geng-Di Huang1,2
1Shenzhen Graduate School, Peking University, Shenzhen, China.
Functional & integrative genomics
|September 21, 2023
概括
雌激素的波动会影响雌性大鼠的海马基因表达. 这项研究确定了238个不同表达的基因,揭示了在不同雌性周期阶段活跃的独特分子通路.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 内分泌学 在内分泌学.
背景情况:
- 雌激素 (E2) 显著影响海马突触结构和可塑性.
- 月经周期期间E2的波动与女性认知,情绪和行为的变化有关.
- 了解E2在海马中的分子作用对于破译它在神经功能和疾病中的作用至关重要.
研究的目的:
- 为了研究E2水平在前期 (PE) 和前期 (DE) 阶段对雌性大鼠海马基因表达的影响.
- 通过使用RNA测序,在PE和DE阶段之间的海马体中识别差异表达基因 (DEGs).
- 阐明受E2介导基因表达变化影响的功能途径.
主要方法:
- 进行RNA测序 (RNA-seq) 在年轻雌性大鼠的海马组织上,在雌性周期的PE和DE阶段进行.
- 使用1.5倍变化值和FDR调整的p值<0.05.05进行了差异基因表达分析.
- 用基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 路径分析来解释DEGs的功能意义.
- 使用定量实时PCR (qPCR) 验证了所选DEGs的表达水平.
主要成果:
- 在PE和DE阶段之间,共确定了238个DEG,它们对E2的波动有反应.
- 功能分析表明,较高的E2水平 (PE阶段) 与大多数DEGs的基因转录增加有关.
- 在PE阶段,KEGG分析显示了参与神经活性联体受体相互作用和细胞粘附的基因的上调,而与胆汁分泌和凝结级联相关的DEG在DE阶段被上调.
结论:
- 这项研究提供了海马的综合性转录基因概况,以应对雌性大鼠在雌性性周期中的E2变化.
- 已识别的DEG和相关途径提供了对E2对海马功能影响的基础神经分子机制的基本见解.
- 这些发现为进一步研究E2波动,海马体可塑性和相关认知和情绪障碍之间的关系奠定了基础.
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