Developmental signals control chromosome segregation fidelity during pluripotency and neurogenesis by modulating replicative stress

Anchel de Jaime-Soguero, Janina Hattemer, Anja Bufe, Alexander Haas, Jeroen van den Berg, Vincent van Batenburg, Biswajit Das, Barbara di Marco, Stefania Androulaki, Nicolas Böhly, Jonathan J M Landry, Brigitte Schoell, Viviane S Rosa, Laura Villacorta, Yagmur Baskan, Marleen Trapp, Vladimir Benes, Andrei Chabes, Marta Shahbazi, Anna JauchUlrike Engel, Annarita Patrizi, Rocio Sotillo, Alexander van Oudenaarden, Josephine Bageritz, Julieta Alfonso, Holger Bastians, Sergio P Acebrón

Research output: Contribution to journal/periodicalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Human development relies on the correct replication, maintenance and segregation of our genetic blueprints. How these processes are monitored across embryonic lineages, and why genomic mosaicism varies during development remain unknown. Using pluripotent stem cells, we identify that several patterning signals-including WNT, BMP, and FGF-converge into the modulation of DNA replication stress and damage during S-phase, which in turn controls chromosome segregation fidelity in mitosis. We show that the WNT and BMP signals protect from excessive origin firing, DNA damage and chromosome missegregation derived from stalled forks in pluripotency. Cell signalling control of chromosome segregation declines during lineage specification into the three germ layers, but re-emerges in neural progenitors. In particular, we find that the neurogenic factor FGF2 induces DNA replication stress-mediated chromosome missegregation during the onset of neurogenesis, which could provide a rationale for the elevated chromosomal mosaicism of the developing brain. Our results highlight roles for morphogens and cellular identity in genome maintenance that contribute to somatic mosaicism during mammalian development.

Original languageEnglish
Pages (from-to)7404
JournalNature Communications
Volume15
Issue number1
DOIs
Publication statusPublished - 28 Aug 2024

Keywords

  • Chromosome Segregation
  • Neurogenesis/genetics
  • Animals
  • DNA Replication
  • Humans
  • Mice
  • DNA Damage
  • Signal Transduction
  • Pluripotent Stem Cells/metabolism
  • Bone Morphogenetic Proteins/metabolism
  • Fibroblast Growth Factor 2/metabolism
  • Mitosis
  • Mosaicism

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