Evidence map›Paper›PMID 32868414›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Defining an amyloid link Between Parkinson's disease and melanoma.

Dexter N Dean, Jennifer C Lee

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.1field-weighted citation impact, top 18% 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

17 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Modulation of infiltrating CD206The European respiratory journal · 2025
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Linking Parkinson's Disease and Melanoma: Interplay Between α-Synuclein and Pmel17 Amyloid Formation.Movement disorders : official journal of the Movement Disorder Society · 2021
    Review
  14. Article
  15. Review
  16. Raman spectral imaging ofBiophysical chemistry · 2021
    Article
  17. 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

2 authors at 1 institution in 1 country.

Dexter N DeanLaboratory of Protein Conformation and Dynamics, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.ORCID 0000-0002-2279-3393
Jennifer C LeeLaboratory of Protein Conformation and Dynamics, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892 leej4@nhlbi.nih.gov.ORCID 0000-0003-0506-8349
National Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An epidemiological connection exists between Parkinson's disease (PD) and melanoma. α-Synuclein (α-syn), the hallmark pathological amyloid observed in PD, is also elevated in melanoma, where its expression is inversely correlated with melanin content. We present a hypothesis that there is an amyloid link between α-syn and Pmel17 (premelanosomal protein), a functional amyloid that promotes melanogenesis. Using SK-MEL 28 human melanoma cells, we show that endogenous α-syn is present in melanosomes, the organelle where melanin polymerization occurs. Using in vitro cross-seeding experiments, we show that α-syn fibrils stimulate the aggregation of a Pmel17 fragment constituting the repeat domain (RPT), an amyloidogenic domain essential for fibril formation in melanosomes. The cross-seeded fibrils exhibited α-syn-like ultrastructural features that could be faithfully propagated over multiple generations. This cross-seeding was unidirectional, as RPT fibrils did not influence α-syn aggregation. These results support our hypothesis that α-syn, a pathogenic amyloid, modulates Pmel17 aggregation in the melanosome, defining a molecular link between PD and melanoma.

Indexed as

alpha-SynucleinCell Line, Tumorgp100 Melanoma AntigenHumansMelanomaMelanosomesParkinson DiseaseProtein AggregatesProtein Domainsalpha-Synucleingp100 Melanoma AntigenPMEL protein, humanProtein Aggregatesaggregationalpha-synucleinfibrilfunctional amyloid

Identifiers

PMID32868414
PMCPMC7502734
OpenAlexW3081758214

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.