人类基因组中的古老病毒DNA与神经退行性疾病有关
Rodrigo R R Duarte1, Douglas F Nixon2, Timothy R Powell1
1Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Division of Infectious Diseases, Weill Cornell Medicine, Cornell University, New York, NY, the United States of America.
Brain, behavior, and immunity
|October 14, 2024
概括
人体内源逆转录病毒 (HERVs) 与神经退行性疾病有关. 这项研究发现了与肌缩性侧面硬化症和多发性硬化症相关的特定HERV表达特征,这表明了新的治疗点.
科学领域:
- 基因组学就是基因组学.
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
背景情况:
- 人体内源逆转录病毒 (HERV) 是人类基因组中集成的古老逆转录病毒序列.
- 以前的研究表明,HERVs与神经退行性疾病之间存在联系,但它们的确切作用尚不清楚.
- 确定HERVs对神经系统疾病的病因贡献是一个重大挑战.
研究的目的:
- 研究神经退行性疾病的遗传风险与大脑中HERV表达之间的关联.
- 为了精确的分析,利用一个逆转录全组关联研究 (rTWAS) 方法.
- 为了确定与神经退行性疾病易感性相关的特定HERV表达特征.
主要方法:
- 对阿尔茨海默病,肌缩性侧面硬化症,多发性硬化症和帕金森病的遗传关联统计数据的分析.
- 使用792个皮质大脑样本计算HERV表达模型.
- 应用严格的统计标准,包括多次测试校正和精细映射,以确定强大的关联.
主要成果:
- 确定12个与神经退行性疾病易感性相关的HERV表达特征.
- 在染色体12q14上发现了特定的HERV (MER61_12q14.2) 与肌缩性侧面硬化症风险之间的强有力的关联.
- 在染色体1p36.32a上检测出另一种HERV (ERVLE_1p36.32a) 与多发性硬化症风险之间的强有力的关联.
- 同表达分析表明,这些HERVs可能通过血膜分子参与细胞粘附.
结论:
- HERV表达特征与易受肌缩性侧面硬化症和多发性硬化症的敏感性密切相关.
- 这些发现突出了导致神经退行性疾病的新型分子机制.
- 鉴定到的HERV关联为神经退行性疾病的治疗干预提供了潜在的新目标.
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