Evidence map›Paper›PMID 33808676›Full record

ArticleInternational journal of molecular sciences2021

Melanin Distribution in Human Skin: Influence of Cytoskeletal, Polarity, and Centrosome-Related Machinery of

Irene Castellano-Pellicena, Ciaran G Morrison, Mike Bell, Clare O'Connor, Desmond J Tobin

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Skin Development and Disease: A Molecular Perspective.Current issues in molecular biology · 2024
    Review
  11. Ontogeny of Skin Stem Cells and Molecular Underpinnings.Current issues in molecular biology · 2024
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Frontiers in microbiology · 2023
    Article
  18. Review
  19. Article
  20. Review
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

5 authors at 3 institutions in 2 countries.

Irene Castellano-PellicenaThe Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland.ORCID 0000-0001-7383-2877
Ciaran G MorrisonCentre for Chromosome Biology, School of Natural Sciences, National University of Ireland Galway, H91 W2TY Galway, Ireland.ORCID 0000-0003-2401-7029
Mike BellWalgreens Boots Alliance, Nottingham NG90 1BS, UK.
Clare O'ConnorWalgreens Boots Alliance, Nottingham NG90 1BS, UK.ORCID 0000-0003-0085-1094
Desmond J TobinThe Charles Institute of Dermatology, School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland.ORCID 0000-0003-4566-9392
University College Dublin · IEWalgreens Boots Alliance (United Kingdom) · GBOllscoil na Gaillimhe – University of Galway · IE

Funding

Walgreens Boots Alliance UK NA
6 · The paper itself

Abstract

Melanin granules cluster within supra-nuclear caps in basal keratinocytes (KCs) of the human epidermis, where they protect KC genomic DNA against ultraviolet radiation (UVR) damage. While much is known about melanogenesis in melanocytes (MCs) and a moderate amount about melanin transfer from MC to KC, we know little about the fate of melanin once inside KCs. We recently reported that melanin fate in progenitor KCs is regulated by rare asymmetric organelle movement during mitosis. Here, we explore the role of actin, microtubules, and centrosome-associated machinery in distributing melanin within KCs. Short-term cultures of human skin explants were treated with cytochalasin-B and nocodazole to target actin filaments and microtubules, respectively. Treatment effects on melanin distribution were assessed by the Warthin-Starry stain, on centrosome-associated proteins by immunofluorescence microscopy, and on co-localisation with melanin granules by brightfield microscopy. Cytochalasin-B treatment disassembled supra-nuclear melanin caps, while nocodazole treatment moved melanin from the apical to basal KC domain. Centrosome and centriolar satellite-associated proteins showed a high degree of co-localisation with melanin. Thus, once melanin granules are transferred to KCs, their preferred apical distribution appears to be facilitated by coordinated movement of centrosomes and centriolar satellites. This mechanism may control melanin's strategic position within UVR-exposed KCs.

Indexed as

ActinsBiomarkersCell PolarityCells, CulturedCentrosomeCytoplasmic GranulesCytoskeletonFluorescent Antibody TechniqueHumansIn Situ HybridizationKeratinocytesMelaninsMelanocytesPhenotypeSkinActinsBiomarkersMelaninsactincentriolar satellitescentrosomeepidermisex vivo human skinmelanin distributionmicrotubulesskin phototypeStratum basale keratinocytes

Identifiers

PMID33808676
PMCPMC8003549
OpenAlexW3139508732

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.