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Pull-down of Calmodulin-binding Proteins
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Propofol Regulates Neural Stem Cell Proliferation and Differentiation via Calmodulin-Dependent Protein Kinase

Chao Liang1, Fang Du, Jiaxing Wang

  • 1From the Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.

Anesthesia and Analgesia
|October 11, 2018
PubMed
Abstract

Insights

Propofol impairs neural stem cell (NSC) development by inhibiting proliferation, migration, and differentiation. This occurs via the calmodulin-dependent protein kinase II/5

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Pharmacology

Background:

  • Propofol is known to cause neurodegeneration and long-term cognitive deficits.
  • The molecular mechanisms underlying propofol's effects on early embryonic neural stem cell (NSC) neurogenesis remain unclear.
  • Understanding these mechanisms is crucial for mitigating potential developmental risks associated with propofol exposure.

Purpose of the Study:

  • To investigate the role of propofol in inhibiting NSC neurogenesis during early embryonic development.
  • To elucidate the underlying molecular mechanisms of propofol-induced neurogenesis inhibition.

Main Methods:

  • In vivo administration of propofol to pregnant mice and subsequent analysis of embryonic brain tissue.
  • Isolation and in vitro treatment of primary mouse NSCs with propofol.
  • Utilized RNA sequencing (RNA-seq), qPCR, Western blot, and siRNA to analyze gene expression and signaling pathways, including CaMKII/AMPK/ATF5.

Main Results:

  • Propofol significantly inhibited NSC proliferation, migration, and differentiation.
  • RNA-seq revealed downregulation of calcium-dependent genes following propofol treatment.
  • Propofol's effects were linked to the CaMKII/pS485/AMPK/ATF5 signaling pathway.

Conclusions:

  • Propofol inhibits key processes of NSC development: proliferation, differentiation, and migration.
  • These inhibitory effects are, in part, mediated by the CaMKII/pS485/AMPK/ATF5 signaling pathway.
  • This study provides critical insights into the molecular basis of propofol's neurodevelopmental toxicity.

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