Evidence map›Paper›PMID 26015562›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Neural Hedgehog signaling maintains stem cell renewal in the sensory touch dome epithelium.

Ying Xiao, Daniel T Thoresen, Jonathan S Williams, Chaochen Wang, James Perna, Ralitsa Petrova, Isaac Brownell

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.5field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. GPCRs as key regulators in wound healing.Frontiers in cell and developmental biology · 2026
    Review
  3. Development and regeneration of Merkel cells.Current topics in developmental biology · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Cellular and molecular mechanisms of Hedgehog signalling.Nature reviews. Molecular cell biology · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Sex-Dependent Reduction in Mechanical Allodynia in the Sural-Sparing Nerve Injury Model in Mice Lacking Merkel Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  16. Review
  17. Review
  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Ying XiaoDermatology Branch, Center of Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892;
Daniel T ThoresenDermatology Branch, Center of Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892;
Jonathan S WilliamsDermatology Branch, Center of Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892;
Chaochen WangLaboratory of Genetics and Physiology, National Institute of Diabetes and Digestive and Kidney Disease, National Institutes of Health, Bethesda, MD 20892;
James PernaDepartment of Molecular, Cell and Development Biology, University of California, Santa Cruz, CA 95064;
Ralitsa PetrovaDevelopmental Biology Program, Sloan Kettering Institute, New York, NY 10065; Biochemistry and Structural Biology, Cell and Developmental Biology, and Molecular Biology (BCMB) Graduate Program, Weill Cornell Medical School, New York, NY 10065.
Isaac BrownellDermatology Branch, Center of Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892; isaac.brownell@nih.gov.
National Institutes of Health · USKettering University · USNational Cancer Institute · USUniversity of California, Santa Cruz · US

Funding

Development and regulation of stem cell lineages in skinZIABC011393 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BROWNELL, ISAAC · 2011 to 2021
$6.7M
Intramural NIH HHS
6 · The paper itself

Abstract

The touch dome is a highly patterned mechanosensory structure in the epidermis composed of specialized keratinocytes in juxtaposition with innervated Merkel cells. The touch dome epithelium is maintained by tissue-specific stem cells, but the signals that regulate the touch dome are not known. We identify touch dome stem cells that are unique among epidermal cells in their activated Hedgehog signaling and ability to maintain the touch dome as a distinct lineage compartment. Skin denervation reveals that renewal of touch dome stem cells requires a perineural microenvironment, and deleting Sonic hedgehog (Shh) in neurons or Smoothened in the epidermis demonstrates that Shh is an essential niche factor that maintains touch dome stem cells. Up-regulation of Hedgehog signaling results in neoplastic expansion of touch dome keratinocytes but no Merkel cell neoplasia. These findings demonstrate that nerve-derived Shh is a critical regulator of lineage-specific stem cells that maintain specialized sensory compartments in the epidermis.

Indexed as

Signal TransductionTouchAnimalsEpithelial CellsHedgehog ProteinsHomeostasisMiceSensory Receptor CellsStem CellsHedgehog ProteinsHedgehogMerkel cellperineural nichestem celltouch dome

Identifiers

PMID26015562
PMCPMC4466733
OpenAlexW1599076673

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.