Evidence map›Paper›PMID 30518684›Full record

ArticleJCI insight2018

IL-6 mediates platinum-induced enrichment of ovarian cancer stem cells.

Yinu Wang, Xingyue Zong, Sumegha Mitra, Anirban Kumar Mitra, Daniela Matei, Kenneth P Nephew

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% 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

80 citing papers in PubMed, 1 synthesis or guideline pooled it, 118 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. A Randomized Phase II Trial of Epigenetic Priming with Guadecitabine and Carboplatin in Platinum-resistant, Recurrent Ovarian Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2020
    Trial
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  19. Chromatin Organization Governs Transcriptional Response and Plasticity of Cancer Stem Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  20. Review

20 more citing papers are in PubMed but not listed here.

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

6 authors at 4 institutions in 1 country.

Yinu WangMedical Sciences, Cell, Molecular and Cancer Biology Program, Indiana University School of Medicine, Indiana University Bloomington (IUB), Bloomington, Indiana, USA.
Xingyue ZongMedical Sciences, Cell, Molecular and Cancer Biology Program, Indiana University School of Medicine, Indiana University Bloomington (IUB), Bloomington, Indiana, USA.
Sumegha MitraDepartment of Obstetrics and Gynecology, Indiana University School of Medicine.
Anirban Kumar MitraMedical Sciences, Cell, Molecular and Cancer Biology Program, Indiana University School of Medicine, Indiana University Bloomington (IUB), Bloomington, Indiana, USA.
Daniela MateiDepartment of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Kenneth P NephewMedical Sciences, Cell, Molecular and Cancer Biology Program, Indiana University School of Medicine, Indiana University Bloomington (IUB), Bloomington, Indiana, USA.
Northwestern University · USIndiana University · USIndiana University Health · USIndiana University School of Medicine

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In high-grade serous ovarian cancer (OC), chemotherapy eliminates the majority of tumor cells, leaving behind residual tumors enriched in OC stem cells (OCSC). OCSC, defined as aldehyde dehydrogenase-positive (ALDH+), persist and contribute to tumor relapse. Inflammatory cytokine IL-6 is elevated in residual tumors after platinum treatment, and we hypothesized that IL-6 plays a critical role in platinum-induced OCSC enrichment. We demonstrate that IL-6 regulates stemness features of OCSC driven by ALDH1A1 expression and activity. We show that platinum induces IL-6 secretion by cancer-associated fibroblasts in the tumor microenvironment, promoting OCSC enrichment in residual tumors after chemotherapy. By activating STAT3 and upregulating ALDH1A1 expression, IL-6 treatment converted non-OCSC to OCSC. Having previously shown altered DNA methylation in OCSC, we show here that IL-6 induces DNA methyltransferase 1 (DNMT1) expression and the hypomethylating agent (HMA) guadecitabine induced differentiation of OCSC and reduced - but did not completely eradicate - OCSC. IL-6 neutralizing antibody (IL-6-Nab) combined with HMA fully eradicated OCSC, and the combination blocked IL-6/IL6-R/pSTAT3-mediated ALDH1A1 expression and eliminated OCSC in residual tumors that persisted in vivo after chemotherapy. We conclude that IL-6 signaling blockade combined with an HMA can eliminate OCSC after platinum treatment, supporting this strategy to prevent tumor recurrence after standard chemotherapy.

Indexed as

Aldehyde DehydrogenaseAldehyde Dehydrogenase 1 FamilyAnimalsAzacitidineCell Line, TumorCytokinesDisease ProgressionDNA (Cytosine-5-)-Methyltransferase 1DNA MethylationDrug TherapyEpigenomicsFemaleHumansImmunotherapyInterleukin-6MiceAldehyde DehydrogenaseAldehyde Dehydrogenase 1 FamilyALDH1A1 protein, humanAzacitidineCytokinesDNA (Cytosine-5-)-Methyltransferase 1DNMT1 protein, humanguadecitabineInterleukin-6PlatinumRetinal DehydrogenaseSTAT3 protein, humanSTAT3 Transcription FactorCancerEpigeneticsImmunotherapyInflammationStem cells

Identifiers

PMID30518684
PMCPMC6328027
OpenAlexW2902849689

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.