4.7 Article

Meta-connectomic analysis maps consistent, reproducible, and transcriptionally relevant functional connectome hubs in the human brain

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COMMUNICATIONS BIOLOGY
卷 5, 期 1, 页码 -

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NATURE PORTFOLIO
DOI: 10.1038/s42003-022-04028-x

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资金

  1. National Natural Science Foundation of China [82021004, 31830034, 81620108016, 82071998, 81671767, 81971690, 81801783]
  2. Changjiang Scholar Professorship Award [T2015027]
  3. National Key Research and Development Project [2018YFA0701402]
  4. Beijing Nova Program [Z191100001119023]
  5. Fundamental Research Funds for the Central Universities [2020NTST29]

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This study identifies consistent and reproducible connectome hubs in the human brain, particularly in the lateral parietal cortex, and reveals their importance in intra- and inter-network communications. Transcriptome analysis further suggests the involvement of neuropeptide signaling pathway, neurodevelopment, and metabolism in these hub regions.
Human brain connectomes include sets of densely connected hub regions. However, the consistency and reproducibility of functional connectome hubs have not been established to date and the genetic signatures underlying robust hubs remain unknown. Here, we conduct a worldwide harmonized meta-connectomic analysis by pooling resting-state functional MRI data of 5212 healthy young adults across 61 independent cohorts. We identify highly consistent and reproducible connectome hubs in heteromodal and unimodal regions both across cohorts and across individuals, with the greatest effects observed in lateral parietal cortex. These hubs show heterogeneous connectivity profiles and are critical for both intra- and inter-network communications. Using post-mortem transcriptome datasets, we show that as compared to non-hubs, connectome hubs have a spatiotemporally distinctive transcriptomic pattern dominated by genes involved in the neuropeptide signaling pathway, neurodevelopmental processes, and metabolic processes. These results highlight the robustness of macroscopic connectome hubs and their potential cellular and molecular underpinnings, which markedly furthers our understanding of how connectome hubs emerge in development, support complex cognition in health, and are involved in disease.

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