Evidence map›Paper›PMID 31774543›Full record

ArticleActa dermato-venereologica2020

Intra-patient Heterogeneity of BRAF and NRAS Molecular Alterations in Primary Melanoma and Metastases.

Cristina Pellegrini, Ludovica Cardelli, Marina De Padova, Lucia Di Nardo, Valeria Ciciarelli, Tea Rocco, Gianluca Cipolloni, Marco Clementi, Alessio Cortellini, Alessandra Ventura and 2 more

Open access · goldAbstract read
In one paragraph

Article in Acta dermato-venereologica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Precision medicine in cutaneous melanoma-A comprehensive review.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. BRAF Heterogeneity in Melanoma.Current treatment options in oncology · 2021
    Review
  10. Article
  11. 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

12 authors at 1 institution in 1 country.

Cristina PellegriniDermatology Unit, Department of Biotechnological and Applied Clinical Science , University of L'Aquila, Via Vetoio, Coppito, IT-67100 L'Aquila, Italy.
Ludovica Cardelli
Marina De Padova
Lucia Di Nardo
Valeria Ciciarelli
Tea Rocco
Gianluca Cipolloni
Marco Clementi
Alessio Cortellini
Alessandra Ventura
Pietro Leocata
Maria Concetta Fargnoli
San Salvatore Hospital · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in MAPK signalling genes are driver events in melanoma, and have therapeutic relevance in the metastatic and adjuvant setting. This study evaluated the intra-patient heterogeneity of BRAF, NRAS and c-KIT mutational status between 30 primary melanomas and 39 related metastases, using molecular analysis and immunohistochemistry. BRAF mutations were identified in 46.7% of primary melanomas and 48.7% of metastases and NRAS mutations in 20% and 25.6%, respectively. Intra-patient heterogeneity was detected in 13.3% of patients for both BRAF and NRAS genes and was not associated with clinico-pathological characteristics of melanomas or metastases. High consistency was observed between immunostaining and molecular methods for BRAFV600E (k = 0.90; p < 0.001) and NRASQ61R (k = 0.87; p < 0.001). These findings demonstrate a relevant intra-patient heterogeneity between primary and metastatic lesions that is independent of clinical variables and methodological approach.

Indexed as

Genetic HeterogeneityMutationAdultAgedAged, 80 and overBiomarkers, TumorDNA Mutational AnalysisFemaleGenetic Predisposition to DiseaseGTP PhosphohydrolasesHumansMaleMelanomaMembrane ProteinsMiddle AgedPhenotypeBiomarkers, TumorBRAF protein, humanGTP PhosphohydrolasesKIT protein, humanMembrane ProteinsNRAS protein, humanProto-Oncogene Proteins B-rafProto-Oncogene Proteins c-kitBRAFc-KITheterogeneitymelanomametastasesNRAS

Identifiers

PMID31774543
PMCPMC9128895
OpenAlexW2989562494

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.