Evidence map›Paper›PMID 20042675›Full record

ArticleThe American journal of pathology2010

Expression of the embryonic stem cell transcription factor SOX2 in human skin: relevance to melanocyte and merkel cell biology.

Alvaro C Laga, Chiou-Yan Lai, Qian Zhan, Susan J Huang, Elsa F Velazquez, Qinghong Yang, Mei-Yu Hsu, George F Murphy

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

62 citing papers in PubMed, 100 citations in OpenAlex.

  1. Article
  2. Diagnostic Utility and Clinicopathologic Associations of Histone H3 Lysine 27 Trimethylation (H3K27me3) Immunohistochemistry for Merkel Cell Carcinoma.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2026
    Article
  3. Article
  4. Article
  5. Development and regeneration of Merkel cells.Current topics in developmental biology · 2025
    Review
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  11. Article
  12. Genomic evidence suggests that cutaneous neuroendocrine carcinomas can arise from squamous dysplastic precursors.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2022
    Article
  13. Article
  14. Review
  15. Review
  16. Article
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  20. Review

2 more citing papers are in PubMed but not listed here.

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

8 authors at 1 institution in 1 country.

Alvaro C LagaDepartment of Pathology, Program in Dermatopathology, Boston, MA 02115, USA. alaga@rics.bwh.harvard.edu
Chiou-Yan Lai
Qian Zhan
Susan J Huang
Elsa F Velazquez
Qinghong Yang
Mei-Yu Hsu
George F Murphy
Brigham and Women's Hospital · US

Funding

Targeting Raf in Melanoma: Mechanisms for Effect & Resistance & Opportunities forP50CA093683 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI KUPPER, THOMAS S. · 2001 to 2012
$25.8M
Virus discovery in cutaneous T cell lymphomaP30AR042689 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI KUPPER, THOMAS S. · 1994 to 2010
$6.8M
Melanoma Stem Cells, Vasculogenesis and Neoplastic ProgressionR01CA138231 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI FRANK, MARKUS H. · 2008 to 2012
$1.7M
Cellular Pathology of Graft Versus Host DiseaseR01HL084815 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI MURPHY, GEORGE F · 2006 to 2010
$1.5M
NCI NIH HHS P50 CA093683NCI NIH HHS P50 CA93683NCI NIH HHS R01 CA138231NHLBI NIH HHS R01 HL084815NHLBI NIH HHS R01-HL084815NIAMS NIH HHS P30 AR042689NIAMS NIH HHS P30 AR42689
6 · The paper itself

Abstract

SOX2 is a gene located on chromosome 3q26.33 that encodes a transcription factor important to maintenance of embryonic neural crest stem cell pluripotency. We have identified rare SOX2-immunoreactive cells in normal human skin at or near the established stem cell niches. Three subsets of SOX2-positive cells were defined in these regions: those expressing only SOX2 and those that co-expressed SOX2 and either CK20 or microphthalmia-associated transcription factor, which are consistent with dichotomous differentiation of SOX2-expressing precursors along neuroendocrine (Merkel cell) or melanocytic lines, respectively. Examination of Merkel cell carcinomas confirmed nuclear SOX2 expression in this tumor type. In human patient melanoma, strong nuclear expression of SOX2 was noted in a subset of tumors, and the ability to detect SOX2 in lesional cells significantly correlated with primary tumor thickness in a survey cohort. To assess the potential role of SOX2 in melanoma growth, an in vivo tumorigenesis assay was used. Whereas SOX2 knockdown failed to influence proliferation of cultured melanoma cells in vitro, tumor xenografts generated with the SOX2-knockdown cell line showed significant decrease in mean tumor volume as compared with controls. In aggregate, these findings suggest that SOX2 is a novel biomarker for subpopulations of normal skin cells that reside in established stem cell niches and that might relate to Merkel cell and melanocyte ontogeny and tumorigenesis.

Indexed as

AnimalsCarcinoma, Merkel CellCells, CulturedEmbryonic Stem CellsGene Expression Regulation, NeoplasticHumansMelanocytesMelanomaMerkel CellsMiceMice, SCIDSkinSkin NeoplasmsSOXB1 Transcription FactorsStem Cell NicheTranscription FactorsSOX2 protein, humanSOXB1 Transcription FactorsTranscription Factors

Identifiers

PMID20042675
PMCPMC2808095
OpenAlexW1521228271

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.