Evidence map›Paper›PMID 22431736›Full record

ArticleThe Journal of biological chemistry2012

Endocannabinoids stimulate human melanogenesis via type-1 cannabinoid receptor.

Mariangela Pucci, Nicoletta Pasquariello, Natalia Battista, Monia Di Tommaso, Cinzia Rapino, Filomena Fezza, Michela Zuccolo, Roland Jourdain, Alessandro Finazzi Agrò, Lionel Breton and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.8field-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

39 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Review
  3. Lipidome Complexity in Physiological and Pathological Skin Pigmentation.International journal of molecular sciences · 2025
    Review
  4. Review
  5. Article
  6. Cannabinoids and Their Receptors in Skin Diseases.International journal of molecular sciences · 2023
    Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Topical cannabidiol (CBD) in skin pathology - A comprehensive review and prospects for new therapeutic opportunities.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2022
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  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

11 authors at 4 institutions in 2 countries.

Mariangela PucciDepartment of Biomedical Sciences, University of Teramo, 64100 Teramo, Italy.
Nicoletta Pasquariello
Natalia Battista
Monia Di Tommaso
Cinzia Rapino
Filomena Fezza
Michela Zuccolo
Roland Jourdain
Alessandro Finazzi Agrò
Lionel Breton
Mauro Maccarrone
University of Teramo · ITEuropean Brain Research Institute · ITL'Oréal (France) · FRUniversity of Rome Tor Vergata · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We show that a fully functional endocannabinoid system is present in primary human melanocytes (normal human epidermal melanocyte cells), including anandamide (AEA), 2-arachidonoylglycerol, the respective target receptors (CB(1), CB(2), and TRPV1), and their metabolic enzymes. We also show that at higher concentrations AEA induces normal human epidermal melanocyte apoptosis (∼3-fold over controls at 5 μM) through a TRPV1-mediated pathway that increases DNA fragmentation and p53 expression. However, at lower concentrations, AEA and other CB(1)-binding endocannabinoids dose-dependently stimulate melanin synthesis and enhance tyrosinase gene expression and activity (∼3- and ∼2-fold over controls at 1 μM). This CB(1)-dependent activity was fully abolished by the selective CB(1) antagonist SR141716 or by RNA interference of the receptor. CB(1) signaling engaged p38 and p42/44 mitogen-activated protein kinases, which in turn activated the cyclic AMP response element-binding protein and the microphthalmia-associated transcription factor. Silencing of tyrosinase or microphthalmia-associated transcription factor further demonstrated the involvement of these proteins in AEA-induced melanogenesis. In addition, CB(1) activation did not engage the key regulator of skin pigmentation, cyclic AMP, showing a major difference compared with the regulation of melanogenesis by α-melanocyte-stimulating hormone through melanocortin 1 receptor.

Indexed as

Endocannabinoidsalpha-MSHAnimalsApoptosisArachidonic AcidsBlotting, WesternCannabinoid Receptor ModulatorsCells, CulturedCyclic AMPCyclic AMP Response Element-Binding ProteinDose-Response Relationship, DrugGene ExpressionGlyceridesHeLa CellsHumansMalealpha-MSHanandamideArachidonic AcidsCannabinoid Receptor ModulatorsCyclic AMPCyclic AMP Response Element-Binding ProteinEndocannabinoidsGlyceridesglyceryl 2-arachidonateMelaninsMicrophthalmia-Associated Transcription FactorMitogen-Activated Protein KinasesMonophenol MonooxygenasePiperidinesPolyunsaturated AlkamidesPyrazolesReceptor, Cannabinoid, CB1Rimonabant

Identifiers

PMID22431736
PMCPMC3346111
OpenAlexW2140834096

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.