Evidence map›Paper›PMID 21386910›Full record

ArticlePloS one2011

Cytoplasmic Skp2 expression is increased in human melanoma and correlated with patient survival.

Guangdi Chen, Yabin Cheng, Zhizhong Zhang, Magdalena Martinka, Gang Li

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
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  11. Tissue prognostic biomarkers in primary cutaneous melanoma.Virchows Archiv : an international journal of pathology · 2014
    Review
  12. Article
  13. Immunohistochemical expression of Skp2 protein in oral nevi and melanoma.Medicina oral, patologia oral y cirugia bucal · 2013
    Article
  14. Article
  15. Role of SKP1-CUL1-F-box-protein (SCF) E3 ubiquitin ligases in skin cancer.Journal of genetics and genomics = Yi chuan xue bao · 2013
    Review
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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 1 country.

Guangdi ChenDepartment of Dermatology and Skin Science, Jack Bell Research Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.
Yabin Cheng
Zhizhong Zhang
Magdalena Martinka
Gang Li
Vancouver Coastal Health · CAVancouver Coastal Health Research Institute · CAUniversity of British Columbia · CA

Funding

Canadian Institutes of Health Research MOP-84559Canadian Institutes of Health Research MOP-93810
6 · The paper itself

Abstract

backgroundS-phase kinase protein 2 (Skp2), an F-box protein, targets cell cycle regulators via ubiquitin-mediated degradation. Skp2 is frequently overexpressed in a variety of cancers and associated with patient survival. In melanoma, however, the prognostic significance of subcellular Skp2 expression remains controversial.

methodsTo investigate the role of Skp2 in melanoma development, we constructed tissue microarrays and examined Skp2 expression in melanocytic lesions at different stages, including 30 normal nevi, 61 dysplastic nevi, 290 primary melanomas and 146 metastatic melanomas. The TMA was assessed for cytoplasmic and nuclear Skp2 expression by immunohistochemistry. The Kaplan-Meier method was used to evaluate the patient survival. The univariate and multivariate Cox regression models were performed to estimate the hazard ratios (HR) at five-year follow-up.

resultsCytoplasmic but not nuclear Skp2 expression was gradually increased from normal nevi, dysplastic nevi, primary melanomas to metastatic melanomas. Cytoplasmic Skp2 expression correlated with AJCC stages (I vs II-IV, P<0.001), tumor thickness (≤2.00 vs >2.00 mm, P<0.001) and ulceration (P = 0.005). Increased cytoplasmic Skp2 expression was associated with a poor five-year disease-specific survival of patients with primary melanoma (P = 0.018) but not metastatic melanoma (P>0.05).

conclusionThis study demonstrates that cytoplasmic Skp2 plays an important role in melanoma pathogenesis and its expression correlates with patient survival. Our data indicate that cytoplasmic Skp2 may serve as a potential biomarker for melanoma progression and a therapeutic target for this disease.

Indexed as

AdolescentAdultAgedAged, 80 and overAlgorithmsBiomarkers, TumorChildCohort StudiesCytoplasmDisease ProgressionFemaleGene Expression Regulation, NeoplasticHumansMaleMelanomaMiddle AgedBiomarkers, TumorS-Phase Kinase-Associated Proteins

Identifiers

PMID21386910
PMCPMC3046256
OpenAlexW2023821657

What OpenQuestion 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 OpenQuestion graph.