Cited by 92Neurogenesis and neuroplasticity mechanismsAxon Guidance and Neuronal SignalingDevelopmental Biology and Gene Regulation

Permissive corridor and diffusible gradients direct medial ganglionic eminence cell migration to the neocortex

Open access
Wichterle, Hynek, Alvarez-Dolado, Manuel, Erskine, Lynda, Alvarez-Buylla, Arturo·2003·Proceedings of the National Academy of Sciences

Abstract

Young neurons born in the medial ganglionic eminence (MGE) migrate a long distance dorsally, giving rise to several types of interneurons in neocortex. The mechanisms that facilitate selective dorsal dispersion of MGE cells while restricting their movement ventrally into neighboring regions are not known. Using microtransplantation into fetal brain slices and onto dissociated substrate cells on floating filters (spot assay), we demonstrate that ventral forebrain regions neighboring the MGE are nonpermissive for MGE cell migration, whereas the dorsal regions leading to the neocortex are increasingly permissive. Spot assay experiments using filters with different pore sizes indicate that the permissive factors are not diffusible. We also show that MGE cells respond to chemoattractive and inhibitory factors diffusing from the neocortex and ventromedial forebrain, respectively. We propose that the final extent and regional specificity of MGE cell dispersion is largely dictated by contact guidance through a selectively permissive environment, flanked by nonpermissive tissues. In addition, we propose that chemotactic guidance cues superimposed over the permissive corridor facilitate efficient dorsal migration of MGE cells.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.242721899

Cites

42 of 42 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Interneurons move toward the cortex along a gradient of increasing permissivity produced by chemoattractive cues in the developing LGE and pallium.

    “Interneurons migrate toward the cortex following a gradient of increasing permissivity generated by chemoattractive cues produced in the developing LGE and pallium (Marín et al., 2003; Wichterle et al., 2003).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wichterle et al., 2003

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [41]Rakic P. Adv Neurol. 2000;84:1–14. [PubMed] [Google Scholar]

Cited by

Sorted by citations

Authors
Wichterle, H., Alvarez-Dolado, M., Erskine, L., & Alvarez-Buylla, A.
Affiliations
  • University of California, San Francisco (US)
  • The Rockefeller University, New York, NY 10021; Brain Tumor Research Center, University of California, San Francisco, CA 94143-0520; and Department of Pathology, Columbia University, New York, NY 10032
Venue
Proceedings of the National Academy of Sciences
Published
2003-01-06
Volume
100
Issue
2
Pages
727-732
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2046826788
Cited by
92
References
42
Citations by year
2025: 1 · 2022: 1 · 2021: 4 · 2020: 9 · 2019: 3 · 2018: 6 · 2017: 1 · 2016: 1 · 2015: 3 · 2014: 4 · 2013: 6 · 2012: 3
FWCI
1.95
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • National Institute of Child Health and Human Development
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD32116, R37HD032116, R01HD032116)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
medial ganglionic eminence, neuronal migration, neocortex, contact guidance, chemotaxis, interneurons, ventral forebrain, microtransplantation, chemoattractants, inhibiting factors
MeSH terms
Slit Homolog 2 Protein, Animals, Cell Movement, Chemotaxis, Diffusion, Median Eminence, Nerve Tissue Proteins, Neocortex, Intercellular Signaling Peptides and Proteins, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review