NR2F1 regulates regional progenitor dynamics in the mouse neocortex and cortical gyrification in BBSOAS patients

Michele Bertacchi, Anna Lisa Romano, Agnès Loubat, Frederic Tran Mau-Them, Marjolaine Willems, Laurence Faivre, Philippe Khau van Kien, Laurence Perrin, Françoise Devillard, Arthur Sorlin, Paul Kuentz, Christophe Philippe, Aurore Garde, Francesco Neri, Rossella Di Giaimo, Salvatore Oliviero, Silvia Cappello, Ludovico D'Incerti, Carolina Frassoni, Michèle Studer

Research output: Contribution to journalArticlepeer-review

Abstract

The relationships between impaired cortical development and consequent malformations in neurodevelopmental disorders, as well as the genes implicated in these processes, are not fully elucidated to date. In this study, we report six novel cases of patients affected by BBSOAS (Boonstra-Bosch-Schaff optic atrophy syndrome), a newly emerging rare neurodevelopmental disorder, caused by loss-of-function mutations of the transcriptional regulator NR2F1. Young patients with NR2F1 haploinsufficiency display mild to moderate intellectual disability and show reproducible polymicrogyria-like brain malformations in the parietal and occipital cortex. Using a recently established BBSOAS mouse model, we found that Nr2f1 regionally controls long-term self-renewal of neural progenitor cells via modulation of cell cycle genes and key cortical development master genes, such as Pax6. In the human fetal cortex, distinct NR2F1 expression levels encompass gyri and sulci and correlate with local degrees of neurogenic activity. In addition, reduced NR2F1 levels in cerebral organoids affect neurogenesis and PAX6 expression. We propose NR2F1 as an area-specific regulator of mouse and human brain morphology and a novel causative gene of abnormal gyrification.

Original languageEnglish
Article numbere104163
JournalEMBO Journal
Volume39
Issue number13
DOIs
Publication statusPublished - Jul 1 2020

Keywords

  • BBSOAS
  • cell cycle dynamics
  • cortical folding
  • neurodevelopmental disease
  • NR2F1/COUP-TFI

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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