Evidence map›Paper›PMID 33311552›Full record

ArticleOncogene2021

Merkel cell carcinoma-derived exosome-shuttle miR-375 induces fibroblast polarization by inhibition of RBPJ and p53.

Kaiji Fan, Ivelina Spassova, Jan Gravemeyer, Cathrin Ritter, Kai Horny, Anja Lange, Thilo Gambichler, Niels Ødum, David Schrama, Dirk Schadendorf and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.4field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 47 citations in OpenAlex.

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  6. EmergingFrontiers in cell and developmental biology · 2025
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  15. miRNA-Seq Tissue Diagnostic Signature: A Novel Model for NSCLC Subtyping.International journal of molecular sciences · 2023
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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

12 authors at 7 institutions in 3 countries.

Kaiji FanDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany.ORCID http://orcid.org/0000-0003-4310-4515
Ivelina SpassovaDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany.
Jan GravemeyerDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany.
Cathrin RitterDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany.
Kai HornyDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany.
Anja LangeResearch Group Bioinformatics, Faculty of Biology, University of Duisburg-Essen, Essen, Germany.
Thilo GambichlerSkin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany.
Niels ØdumLEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.
David SchramaDepartment of Dermatology, University Hospital Würzburg, Würzburg, Germany.ORCID http://orcid.org/0000-0002-6931-8194
Dirk SchadendorfGerman Cancer Consortium (DKTK), Essen, Germany.ORCID http://orcid.org/0000-0003-3524-7858
Selma UgurelDepartment of Dermatology, University Hospital Essen, Essen, Germany.
Jürgen C BeckerDepartment of Translational Skin Cancer Research, University Hospital Essen, Essen, Germany. j.becker@dkfz.de.ORCID http://orcid.org/0000-0001-9183-653X
German Cancer Research Center · DEEssen University Hospital · DEGerman Cancer Society · DERuhr University Bochum · DEUniversitätsklinikum Würzburg · DEUniversity of Copenhagen · DKUniversity of Duisburg-Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Merkel cell carcinoma (MCC) is a highly invasive and metastatic skin cancer. While high expression of miR-375 is a characteristic of MCC, it seems not to contribute to the malignant phenotype of MCC cells. miR-375 enrichment in MCC-derived extracellular vesicles suggests its intercellular signaling function. Here, we demonstrate that horizontally transferred miR-375 causes fibroblast polarization toward cancer-associated fibroblasts (CAFs). The polarization is evidenced by phenotypic changes and induction of α-SMA, CXCL2, and IL-1β. Fibroblast polarization is inhibited by specific antagomirs and mimicked by experimental miR-375 expression. Mechanistically, miR-375 downregulates RBPJ and p53, two key players regulating fibroblast polarization. In clinical MCC samples, in situ hybridization located miR-375 in CAFs, which correlated with high α-SMA protein and low RBPJ and TP53 expression; single-cell RNAseq revealed a disparate fibroblast polarization negatively correlating with p53 pathway-related gene expression. Thus, the functional role of miR-375 in MCC is to generate a pro-tumorigenic microenvironment by inducing fibroblast polarization.

Indexed as

ActinsAntagomirsCancer-Associated FibroblastsCarcinogenesisCarcinoma, Merkel CellCell PolarityChemokine CXCL2ExosomesGene Expression Regulation, NeoplasticHumansImmunoglobulin J Recombination Signal Sequence-Binding ProteinInterleukin-1betaMicroRNAsRNA-SeqSignal TransductionSingle-Cell AnalysisACTA2 protein, humanActinsAntagomirsChemokine CXCL2IL1B protein, humanImmunoglobulin J Recombination Signal Sequence-Binding ProteinInterleukin-1betaMicroRNAsMIRN375 microRNA, humanRBPJ protein, humanTP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID33311552
PMCPMC7862059
OpenAlexW3112127388

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.