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Genes associated with cognitive ability and HAR show overlapping expression patterns in human cortical neuron types

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Abstract

GWAS have identified numerous genes associated with human cognition but their cell type expression profiles in the human brain are unknown. These genes overlap with human accelerated regions (HARs) implicated in human brain evolution and might act on the same biological processes. Here, we investigated whether these gene sets are expressed in adult human cortical neurons, and how their expression relates to neuronal function and structure. We find that these gene sets are preferentially expressed in L3 pyramidal neurons in middle temporal gyrus (MTG). Furthermore, neurons with higher expression had larger total dendritic length (TDL) and faster action potential (AP) kinetics, properties previously linked to intelligence. We identify a subset of genes associated with TDL or AP kinetics with predominantly synaptic functions and high abundance of HARs.

Original languageEnglish
Article number4188
Pages (from-to)1-14
Number of pages14
JournalNature Communications
Volume14
Early online date13 Jul 2023
DOIs
Publication statusPublished - 2023

Bibliographical note

Funding Information:
We thank Prof dr. Danielle Posthuma and dr. Christiaan de Leeuw for their insightful comments on earlier drafts of the manuscript and dr. Sophie van der Sluis for the help with the statistical analyses. This study was supported by several grant awards including award U01MH114812 and UM1MH130981-01 from National Institute of Mental Health (NIMH), grant no. 945539 (Human Brain Project SGA3) from the European Union’s Horizon 2020 Framework Program for Research and Innovation, the Netherlands Organization for Scientific Research (NWO) Gravitation program BRAINSCAPES: A Roadmap from Neurogenetics to Neurobiology (NWO: 024.004.012). N.A.G. is supported by VI.Vidi.213.014 grant from the Netherlands Organization for Scientific Research (NWO). H.D.M. is supported by ERC AdG ‘fasthumanneuron’ 101093198.

Publisher Copyright:
© 2023, The Author(s).

Funding

We thank Prof dr. Danielle Posthuma and dr. Christiaan de Leeuw for their insightful comments on earlier drafts of the manuscript and dr. Sophie van der Sluis for the help with the statistical analyses. This study was supported by several grant awards including award U01MH114812 and UM1MH130981-01 from National Institute of Mental Health (NIMH), grant no. 945539 (Human Brain Project SGA3) from the European Union’s Horizon 2020 Framework Program for Research and Innovation, the Netherlands Organization for Scientific Research (NWO) Gravitation program BRAINSCAPES: A Roadmap from Neurogenetics to Neurobiology (NWO: 024.004.012). N.A.G. is supported by VI.Vidi.213.014 grant from the Netherlands Organization for Scientific Research (NWO). H.D.M. is supported by ERC AdG ‘fasthumanneuron’ 101093198.

FundersFunder number
European Commission
European Union’s Horizon 2020 Framework Program for Research and Innovation
Nederlandse Organisatie voor Wetenschappelijk Onderzoek024.004.012
European Research Council101093198
National Institute of Mental Health945539

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