微RNA媒介抑制质细胞系衍生的神经营养因子表达是由精神分裂症相关的非编码多态度调节的
Gergely Keszler1, Bálint Vékony2, Zsuzsanna Elek1
1Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, 1094 Budapest, Hungary.
International journal of molecular sciences
|April 27, 2024
概括
质细胞系衍生的神经营养因子 (GDNF) 基因,rs11111'G'等位基因的特定遗传变异与精神分裂症有关. 这种变异可能会通过微RNA调节减少GDNF表达,影响多巴胺基神经元的存活率.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 质细胞系衍生神经营养因子 (GDNF) 对于多巴胺基神经元的存活和分化至关重要.
- 在精神分裂症患者中观察到GDNF的血水平降低.
- 在精神分裂症发病过程中GDNF遗传变异的作用需要进一步调查.
研究的目的:
- 研究GDNF基因中的单核酸多态 (SNPs) 与精神分裂症之间的关联.
- 探索与精神分裂症相关的rs11111 SNP在3'未翻译区域 (3'-UTR) 的功能影响.
- 确定微RNA (miRNA) 在调解rs11111多态对GDNF表达的影响中的作用.
主要方法:
- 对GDNF基因中5个非编码SNP的病例控制关联分析与精神分裂症.
- 影响rs11111 SNP的miRNA结合部位的in silico预测.
- 在HEK293T细胞中进行Luciferase报告测试,以评估rs11111 SNP和hsa-miR-1185-2-3p对GDNF 3"-UTR活性的影响.
主要成果:
- 在GDNF 3"-UTR中的rs11111 SNP的"G"等位基因与精神分裂症有显著的关联.
- 在基分析中预测rs11111'G'等位基产生特定miRNA的结合点.
- 路西法酶试验证实,hsa-miR-1185-2-3p以miRNA依赖的方式抑制GDNF表达,特别是当"G"等位基因存在时.
结论:
- 在精神分裂症患者中更常见的rs11111'G'等位基因可能通过miRNA相互作用降低GDNF表达的调节.
- 这种依赖于miRNA的GDNF下调可能有助于精神分裂症的发病.
- 这些发现突出了一个潜在的遗传和分子机制,将GDNF通路调节失调与精神分裂症联系起来.
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