人类大脑的综合功能基因组资源和整合模型
Science (New York, N.Y.)
|December 15, 2018
概括
心理学协会创建了一个大脑资源来了解精神疾病. 这种资源将遗传风险变异与基因联系起来,改善疾病预测和确定关键分子途径.
科学领域:
- 神经科学
- 遗传学
- 计算生物学
背景情况:
- 精神疾病的遗传风险因素已知,但其潜在的分子机制尚未完全理解.
- 了解大脑中的基因调节对于解读复杂的精神疾病至关重要.
研究的目的:
- 为成年人大脑创建一个全面的在线资源,
- 整合多组数据建立基因调控网络并改善精神疾病预测.
主要方法:
- 来自1866个人的大规模数据集,包括大脑活性增强剂,Hi-C数据和单细胞表达特征.
- 对基因表达,染色体,拼接和细胞类型比例进行了表达量特征位置 (eQTL) 分析.
- 整合多种数据集来重建基因表达变异并建立基因调控网络.
主要成果:
- 该资源包括约79,000个大脑活性增强剂和详细的分子概况.
- 细胞类型的比例解释了88%以上的表达变化.
- 一个基因调控网络将全基因组关联研究 (GWAS) 变异与基因联系起来,发现了321个精神分裂症基因.
- 使用这种网络的可解释深度学习模型比多基因风险得分提高了6倍.
结论:
- 心理学资源为剖析精神疾病的分子基础提供了一个强大的平台.
- 整合多种数据和先进的计算模型可以显著提高我们对疾病病因和预测的理解.
- 这项研究确定了与精神疾病有关的关键基因和途径,为未来的治疗策略铺平了道路.
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