Evidence map›Paper›PMID 25026296›Full record

ArticleOncotarget2014

MicroRNA-25 regulates chemoresistance-associated autophagy in breast cancer cells, a process modulated by the natural autophagy inducer isoliquiritigenin.

Zhiyu Wang, Neng Wang, Pengxi Liu, Qianjun Chen, Honglin Situ, Ting Xie, Jianxing Zhang, Cheng Peng, Yi Lin, Jianping Chen

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 126 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
126citing papers in PubMed, 1 pooled it
19.1field-weighted citation impact, top 1% 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

126 citing papers in PubMed, 1 synthesis or guideline pooled it, 226 citations in OpenAlex.

  1. Bioscience reports · 2017
    Pooled it
  2. MiRNAs: main players of cancer drug resistance target ABC transporters.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  3. Review
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  5. An insight into the therapeutic effects of isoliquiritigenin in breast cancer.Naunyn-Schmiedeberg's archives of pharmacology · 2024
    Review
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  7. Article
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  10. Article
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  12. Article
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  17. Article
  18. SUMOylation inhibition enhances dexamethasone sensitivity in multiple myeloma.Journal of experimental & clinical cancer research : CR · 2022
    Article
  19. Review
  20. Role of Circulating Biomarkers in Platinum-Resistant Ovarian Cancer.International journal of molecular sciences · 2021
    Review

66 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

10 authors at 4 institutions in 2 countries.

Zhiyu WangDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine; School of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; These authors contributed equally to this work.
Neng WangSchool of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; These authors contributed equally to this work.
Pengxi LiuDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine.
Qianjun ChenDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine.
Honglin SituDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine.
Ting XieDepartment of Dermatology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Collage of Guangzhou University of Chinese Medicine.
Jianxing ZhangDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine.
Cheng PengDeapartment of Pharmacology, Chengdu University of Traditional Chinese Medicine.
Yi LinDepartment of Mammary Disease, Guangdong Provincial Hospital of Chinese Medicine.
Jianping ChenSchool of Chinese Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China.
Guangdong Provincial Hospital of Traditional Chinese Medicine · CNUniversity of Hong Kong · HKChengdu University of Traditional Chinese Medicine · CNGuangzhou University of Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent findings have revealed that dysregulated miRNAs contribute significantly to autophagy and chemoresistance. Pharmacologically targeting autophagy-related miRNAs is a novel strategy to reverse drug resistance. Here, we report a novel function of isoliquiritigenin (ISL) as a natural inhibitor of autophagy-related miR-25 in killing drug-resistant breast cancer cells. ISL induced chemosensitization, cell cycle arrest and autophagy, but not apoptosis, in MCF-7/ADR cells. ISL also promoted the degradation of the ATP-binding cassette (ABC) protein ABCG2 primarily via the autophagy-lysosome pathway. More importantly, miRNA 3.0 array experiments identified miR-25 as the main target of ISL in triggering autophagy flux. A mechanistic study validated that miR-25 inhibition led to autophagic cell death by directly increasing ULK1 expression, an early regulator in the autophagy induction phase. miR-25 overexpression was demonstrated to block ISL-induced autophagy and chemosensitization. Subsequent in vivo experiments showed that ISL had chemosensitizing potency, as revealed by an increase in LC3-II staining, the downregulation of ABCG2, a reduction in miR-25 expression and the activation of the miR-25 target ULK1. Overall, our results not only indicate that ISL acts as a natural autophagy inducer to increase breast cancer chemosensitivity, but also reveal that miR-25 functions as a novel regulator of autophagy by targeting ULK1.

Indexed as

AnimalsAutophagyBreast NeoplasmsCell Line, TumorCell ProliferationChalconesDown-RegulationDrug Resistance, NeoplasmFemaleHumansMCF-7 CellsMiceMice, Inbred NODMice, SCIDMicroRNAsXenograft Model Antitumor AssaysChalconesisoliquiritigeninMicroRNAsMIRN25 microRNA, human

Identifiers

PMID25026296
PMCPMC4196180
OpenAlexW1710176300

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.