Convergent molecular, cellular, and cortical neuroimaging signatures of major depressive disorder.
IF: 12.779
Cited by: 38


Major depressive disorder emerges from the complex interactions of biological systems that span genes and molecules through cells, networks, and behavior. Establishing how neurobiological processes coalesce to contribute to depression requires a multiscale approach, encompassing measures of brain structure and function as well as genetic and cell-specific transcriptional data. Here, we examine anatomical (cortical thickness) and functional (functional variability, global brain connectivity) correlates of depression and negative affect across three population-imaging datasets: UK Biobank, Brain Genomics Superstruct Project, and Enhancing NeuroImaging through Meta Analysis (ENIGMA; combined n ≥ 23,723). Integrative analyses incorporate measures of cortical gene expression, postmortem patient transcriptional data, depression genome-wide association study (GWAS), and single-cell gene transcription. Neuroimaging correlates of depression and negative affect were consistent across three independent datasets. Linking ex vivo gene down-regulation with in vivo neuroimaging, we find that transcriptional correlates of depression imaging phenotypes track gene down-regulation in postmortem cortical samples of patients with depression. Integrated analysis of single-cell and Allen Human Brain Atlas expression data reveal somatostatin interneurons and astrocytes to be consistent cell associates of depression, through both in vivo imaging and ex vivo cortical gene dysregulation. Providing converging evidence for these observations, GWAS-derived polygenic risk for depression was enriched for genes expressed in interneurons, but not glia. Underscoring the translational potential of multiscale approaches, the transcriptional correlates of depression-linked brain function and structure were enriched for disorder-relevant molecular pathways. These findings bridge levels to connect specific genes, cell classes, and biological pathways to in vivo imaging correlates of depression.


gene expression
major depressive disorder
somatostatin interneurons

MeSH terms

Cerebral Cortex
Depressive Disorder, Major
Gene Expression Profiling
Gene Expression Regulation
Gene Ontology
Gene Regulatory Networks
Genome-Wide Association Study
Multifactorial Inheritance
Signal Transduction
Single-Cell Analysis


Anderson, Kevin M
Collins, Meghan A
Kong, Ru
Fang, Kacey
Li, Jingwei
He, Tong
Chekroud, Adam M
Yeo, B T Thomas
Holmes, Avram J

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