Evidence map›Paper›PMID 35011574›Full record

ArticleCells2021

miR-140-5p Attenuates Hypoxia-Induced Breast Cancer Progression by Targeting Nrf2/HO-1 Axis in a Keap1-Independent Mechanism.

Megharani Mahajan, Sandhya Sitasawad

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.1field-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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
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  5. miR-145-5p Inhibits HER2-Positive Breast Cancer Cells via Targeting ARF6.International journal of general medicine · 2025
    Article
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  16. MicroRNAs and Gene Regulatory Networks Related to Cleft Lip and Palate.International journal of molecular sciences · 2023
    Review
  17. Hypoxia-driven ncRNAs in breast cancer.Frontiers in oncology · 2023
    Review
  18. Review
  19. Article
  20. 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

2 authors at 1 institution in 1 country.

Megharani MahajanRedox Biology Laboratory, National Centre for Cell Science (NCCS), Pune 411007, India.ORCID 0000-0002-6259-5754
Sandhya SitasawadRedox Biology Laboratory, National Centre for Cell Science (NCCS), Pune 411007, India.
National Centre for Cell Science · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypoxia and oxidative stress significantly contribute to breast cancer (BC) progression. Although hypoxia-inducible factor 1α (Hif-1α) is considered a key effector of the cellular response to hypoxia, nuclear factor erythroid 2-related factor 2 (Nrf2), a master antioxidant transcription factor, is a crucial factor essential for Hif-1α-mediated hypoxic responses. Hence, targeting Nrf2 could provide new treatment strategies for cancer therapy. miRNAs are potential regulators of hypoxia-responsive genes. In a quest to identify novel hypoxia-regulated miRNAs involved in the regulation of Nrf2, we found that miR-140-5p significantly affects the expression of Nrf2 under hypoxia. In our study, miR-140-5p expression is downregulated in BC cells under hypoxic conditions. We have identified Nrf2 as a direct target of miR-140-5p, as confirmed by the luciferase assay. Knockdown of miR-140-5p under normoxic conditions significantly enhanced Nrf2/HO-1 signaling and tumor growth, angiogenesis, migration, and invasion in BC. In contrast, overexpression of miR-140-5p under hypoxic conditions revealed opposite results. Further silencing Nrf2 expression mimicked the miR-140-5p-induced anti-tumor effects. Consistent with the knockdown of miR-140-5p in vitro, mice injected with miR-140-5p-KD cells exhibited dramatically reduced miR-140-5p levels, increased Nrf2 levels, and increased tumor growth. In contrast, tumor growth is potently suppressed in mice injected with miR-140-5p-OE cells. Collectively, the above results demonstrate the importance of the Nrf2/HO-1 axis in cancer progression and, thus, targeting Nrf2 by miR-140-5p could be a better strategy for the treatment of Nrf2-driven breast cancer progression.

Indexed as

Disease ProgressionAnimalsApoptosisBase SequenceBreast NeoplasmsCarcinogenesisCell Line, TumorCell MovementCell ProliferationCell SurvivalDisease Models, AnimalFemaleGene Expression Regulation, NeoplasticHeme Oxygenase-1Hypoxia-Inducible Factor 1, alpha SubunitKelch-Like ECH-Associated Protein 1Heme Oxygenase-1HIF1A protein, humanHypoxia-Inducible Factor 1, alpha SubunitKelch-Like ECH-Associated Protein 1MicroRNAsMirn140 microRNA, humanNF-E2-Related Factor 2angiogenesisbreast cancermetastasismiR-140-5pNrf2

Identifiers

PMID35011574
PMCPMC8750786
OpenAlexW4200161329

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.