大型抑郁症的大脑和血液生物标志物:系统性审查
Lia J Zallar1,2, Maura B Dupont1,2
1Department of Psychiatry, Columbia University, New York, New York.
JAMA psychiatry
|February 25, 2026
概括
大型抑郁症 (MDD) 研究揭示了大脑和血液分子通路的重叠. 这些发现,包括共享的基因变异,为MDD的新生物标志物和治疗提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 重度抑郁症 (MDD) 是一种复杂的神经精神疾病,具有很高的自杀风险.
- MDD是多基因的,有成千上万的小效应变体被确定,并且具有显著的表观遗传成分.
- 目前对MDD的治疗方法和生物标志物有限,阻碍了精准医学方法.
研究的目的:
- 从MDD研究中整合和重新分析omics数据.
- 在MDD患者的大脑和血液中识别重叠的失调途径.
- 为发现MDD的新生物标志物和治疗点提供信息.
主要方法:
- 使用PubMed,Embase和Web of Science对MDD大脑和血液中的omics研究进行系统审查.
- 包括标准:人类生物标本,在MDD与对照中差异表达/甲基化基因,RNA测序或甲基化概况.
- 欧米克发现与NHGRI-EBI GWAS目录对MDD相关基因变异的比较.
主要成果:
- 分析了54篇文章,揭示了744个不同表达的基因和544个不同甲基化的基因在大脑和血液中改变了相同的方向.
- 43个差异表达的基因和34个差异甲基化的基因与GWAS识别的MDD风险位相重叠.
- 融合的枢纽基因涉及神经发育,炎症,转录调节,亡和线粒体中的途径.
结论:
- 尽管个体基因具有变异性,但在MDD研究中出现了一致的途径改变 (神经发育,线粒体,神经炎症,亡,转录调节).
- 大脑和血液中的重叠分子通路表明可能存在基于血液的生物标志物.
- 在研究不足的大脑区域进行进一步的细胞类型特定的多原子研究对于理解MDD病理生理学和开发向疗法至关重要.
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