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Publication : A single-cell transcriptomic landscape of cadmium-hindered brain development in mice.

First Author  Ma Q Year  2024
Journal  Commun Biol Volume  7
Issue  1 Pages  997
PubMed ID  39147853 Mgi Jnum  J:353337
Mgi Id  MGI:7712316 Doi  10.1038/s42003-024-06685-6
Citation  Ma Q, et al. (2024) A single-cell transcriptomic landscape of cadmium-hindered brain development in mice. Commun Biol 7(1):997
abstractText  The effects of neurotoxicant cadmium (Cd) exposure on brain development have not been well elucidated. To investigate this, we have herein subjected pregnant mice to low-dose Cd throughout gestation. Using single-cell RNA sequencing (scRNA-seq), we explored the cellular responses in the embryonic brain to Cd exposure, and identified 18 distinct cell subpopulations that exhibited varied responses to Cd. Typically, Cd exposure impeded the development and maturation of cells in the brain, especially progenitor cells such as neural progenitor cells (NPCs) and oligodendrocyte progenitor cells (OPCs). It also caused significant cell subpopulation shifts in almost all the types of cells in the brain. Additionally, Cd exposure reduced the dendritic sophistication of cortical neurons in the offspring. Importantly, these changes led to aberrant Ca(2+) activity in the cortex and neural behavior changes in mature offspring. These data contribute to our understanding of the effects and mechanisms of Cd exposure on brain development and highlight the importance of controlling environmental neurotoxicant exposure at the population level.
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