Evidence map›Paper›PMID 9218796›Full record

ArticleThe EMBO journal1997

Modulation of murine melanocyte function in vitro by agouti signal protein.

C Sakai, M Ollmann, T Kobayashi, Z Abdel-Malek, J Muller, W D Vieira, G Imokawa, G S Barsh, V J Hearing

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Measurement of Melanin Metabolism in Live Cells by [U-The Journal of investigative dermatology · 2021
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. MC1R: Front and Center in the Bright Side of Dark Eumelanin and DNA Repair.International journal of molecular sciences · 2018
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Targeting protein-trafficking pathways alters melanoma treatment sensitivity.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  17. Article
  18. Article
  19. Microarray analysis sheds light on the dedifferentiating role of agouti signal protein in murine melanocytes via the Mc1r.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  20. Article
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

9 authors at 1 institution in 1 country.

C SakaiLaboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
M Ollmann
T Kobayashi
Z Abdel-Malek
J Muller
W D Vieira
G Imokawa
G S Barsh
V J Hearing
National Cancer Institute · US

Funding

NEI NIH HHS EY07106NIDDK NIH HHS DK28506
6 · The paper itself

Abstract

Molecular and biochemical mechanisms that switch melanocytes between the production of eumelanin or pheomelanin involve the opposing action of two intercellular signaling molecules, alpha-melanocyte-stimulating hormone (MSH) and agouti signal protein (ASP). In this study, we have characterized the physiological effects of ASP on eumelanogenic melanocytes in culture. Following exposure of black melan-a murine melanocytes to purified recombinant ASP in vitro, pigmentation was markedly inhibited and the production of eumelanosomes was decreased significantly. Melanosomes that were produced became pheomelanosome-like in structure, and chemical analysis showed that eumelanin production was significantly decreased. Melanocytes treated with ASP also exhibited time- and dose-dependent decreases in melanogenic gene expression, including those encoding tyrosinase and tyrosinase-related proteins 1 and 2. Conversely, melanocytes exposed to MSH exhibited an increase in tyrosinase gene expression and function. Simultaneous addition of ASP and MSH at approximately equimolar concentrations produced responses similar to those elicited by the hormone alone. These results demonstrate that eumelanogenic melanocytes can be induced in culture by ASP to exhibit features characteristic of pheomelanogenesis in vivo. Our data are consistent with the hypothesis that the effects of ASP on melanocytes are not mediated solely by inhibition of MSH binding to its receptor, and provide a cell culture model to identify novel factors whose presence is required for pheomelanogenesis.

Indexed as

Intercellular Signaling Peptides and ProteinsIntramolecular OxidoreductasesMembrane GlycoproteinsOxidoreductasesAgouti Signaling ProteinAnimalsCells, CulturedCyclic AMPGene Expression RegulationHumansIsomerasesMelaninsMelanocytesMelanocyte-Stimulating HormonesMiceMice, Inbred C57BLAgouti Signaling ProteinCyclic AMPdopachrome isomeraseeumelaninIntercellular Signaling Peptides and ProteinsIntramolecular OxidoreductasesIsomerasesMelaninsMelanocyte-Stimulating HormonesMembrane GlycoproteinsMonophenol MonooxygenaseMSH receptorOxidoreductasespheomelaninProteinsReceptors, Pituitary HormoneRecombinant Fusion ProteinsRNA, Messengertyrosinase-related protein-1TYRP1 protein, humanTyrp1 protein, mouse

Identifiers

PMID9218796
PMCPMC1169979
OpenAlexW1972944775

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.