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Organotypic Slice Cultures of Embryonic Ventral Midbrain: A System to Study Dopaminergic Neuronal Development in vitro
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Transcriptomic analysis of left-right differences in human embryonic forebrain and midbrain.

Carolien G F de Kovel1, Steven N Lisgo2, Clyde Francks1,3

  • 1Language and Genetics Department, Max Planck Institute for Psycholinguistics, 6525 XD Nijmegen, The Netherlands.

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|September 5, 2018
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Early human brain development shows subtle left-right asymmetry. This study analyzed gene expression in embryonic forebrains and midbrains, revealing differences between the left and right sides to understand developmental mechanisms.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genomics

Background:

  • Left-right asymmetry is a subtle yet common feature of the human central nervous system.
  • The precise mechanisms initiating this asymmetry during early development remain largely unknown.

Purpose of the Study:

  • To investigate early molecular mechanisms underlying left-right asymmetry in the developing human brain.
  • To identify genes and pathways involved in establishing brain lateralization.

Main Methods:

  • Dissection of forebrain and midbrain structures from human embryos at Carnegie stages 15-16.
  • Isolation and high-throughput RNA sequencing (Illumina Hiseq 4000) of left and right brain sides.
  • Paired analysis of gene expression data to detect lateral differences.

Main Results:

  • Identification of significant left-right differences in gene expression within embryonic human midbrain and forebrain.
  • Generated a valuable dataset of RNA sequencing reads and counts for further analysis.

Conclusions:

  • This study provides novel insights into the molecular basis of early human brain asymmetry.
  • The generated data serves as a resource for future research on brain development and lateralization.