Cited by 158Neurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology ResearchDevelopmental Biology and Gene Regulation

Times of generation of glutamic acid decarboxylase immunoreactive neurons in mouse somatosensory cortex

Fairén, Alfonso, Cobas, Alberto, Fonseca, Montserrat·1986·Journal of Comparative Neurology

Abstract

The birth dates of neurons showing glutamic acid decarboxylase (GAD) immunoreactivity have been determined in mouse somatosensory cortex. Pregnant C57Bl mice received pulse injections of (3H)thymidine from E10 through E17 (E0 being the day of mating). The distributions of thymidine-labeled, GAD-positive and nonimmunoreactive (non-GAD) cells as a function of depth under the pial surface were recorded in adult animals. The maximum rate of generation of GAD-positive neurons occurred at E14, whereas the generation of non-GAD neurons reached its maximum rate at E13. Except for those in layer I, GAD-positive neurons followed an inside-out sequence of positioning. GAD-positive neurons born at E12 and E13 were located in layers VI-IV. GAD-positive neurons born at E14 were found throughout the cortical thickness, with a maximum in layer IV. The GAD-positive neurons labeled after pulses at E15 or E16 or E17 were limited to the superficial strata, forming a band that became narrower as it moved toward the pial surface with increase in age of pulse labeling. GAD-positive neurons in layer I were generated at a constant rate during the whole embryonic period analyzed. Non-GAD neurons also followed an inside-out spatiotemporal gradient. Two partially overlapping phases were distinguished in non-GAD neurogenesis. During the first phase (from E12 to E14) neurons populating adult layers VI and V originated, while neurons located in layers IV through I were generated during the second phase (from E13 to E17). Since GAD-immunoreactive neurons form a heterogeneous population, we envisage further studies in order to test whether differences exist in birth dates among the classes.

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Crossref · 10.1002/cne.902510105

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  • MGE-derived interneurons adopt their laminar distribution following an inside-out sequence correlated with birthdate, similar to pyramidal cells.

    “MGE-derived interneurons adopt their laminar distribution following an ‘inside-out’ sequence that correlates with their birthdate, similar to pyramidal cells”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Fairén et al., 1986

  • MGE-derived interneurons laminate in the cortex according to birth order in the same inside-out manner as principal cells: early born cells migrate deeper than those born later.

    “MGE-derived interneurons laminate in the cortex according to birth order in the same inside-out manner as PCs: early born cells migrate deeper than those born later”

    From Hippocampal GABAergic Inhibitory Interneurons (2017) · cites this paper as [310]

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Authors
Fairén, A., Cobas, A., & Fonseca, M.
Affiliations
Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Fairén, Alfonso
Venue
Journal of Comparative Neurology
Publisher
Wiley
Published
1986-09
Volume
251
Issue
1
Pages
67-83
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W2149671983
Cited by
158
References
71
Citations by year
2025: 1 · 2022: 2 · 2021: 4 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 2 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 8 · 2012: 9
FWCI
3.19
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
glutamic acid decarboxylase, GABAergic neurons, somatosensory cortex, neurogenesis, embryonic development, cortical layers, mice
MeSH terms
Animals, Glutamate Decarboxylase, Histocytochemistry, Mice, Inbred C57BL, Neurons, Somatosensory Cortex, Mice

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