Evidence map›Paper›PMID 33664571›Full record

ArticleInternational journal of nanomedicine2021

Copper Nanoparticles Induce Oxidative Stress via the Heme Oxygenase 1 Signaling Pathway in vitro Studies.

Liping Zou, Guiping Cheng, Chengcheng Xu, Heyu Liu, Yingying Wang, Nianyu Li, Xiaorong Fan, Changhong Zhu, Wei Xia

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% 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, 48 citations in OpenAlex.

  1. Ligand-Engineered CuSmall (Weinheim an der Bergstrasse, Germany) · 2026
    Article
  2. Article
  3. [Gandou Bushen decoction ameliorates ovarian injury in murine hepatolenticular degeneration via the AGE/RAGE/NF-κB signaling pathway].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2025
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  16. The emerging role of copper in depression.Frontiers in neuroscience · 2023
    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

9 authors at 1 institution in 1 country.

Liping ZouInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.ORCID 0000-0003-0917-5344
Guiping ChengInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Chengcheng XuInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Heyu LiuInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Yingying WangInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Nianyu LiInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Xiaorong FanInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Changhong ZhuInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Wei XiaInstitute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
Huazhong University of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe toxicity of copper nanoparticle (CuNP) exposure in the ovaries has attracted attention recently, but the precise molecular mechanism involved requires further investigation. We investigated the cytotoxicity of CuNPs in ovarian granulosa cells and the protective effect of heme oxygenase 1 (HO-1) against CuNP-induced damage.

methodsHuman ovarian granulosa cells (COV434) were treated with CuNPs, and cytotoxicity was evaluated using Cell Counting Kit-8 and flow cytometry assays. Oxidative stress was identified using biochemical markers of oxidation and anti-oxidation. The protein levels of mitogen-activated protein kinase 14 (MAPK14), phospho-MAPK14, nuclear factor erythroid 2-related factor 2 (Nrf2), and HO-1 were measured by immunoblotting. Subsequently, for oxidative stress parameter detection, the cells were pre-treated with hemin to induce HO-1 expression prior to CuNP treatment.

resultsExposure to CuNPs decreased cell viability and the mitochondrial membrane potential, increased the apoptosis rate, and induced oxidative stress. Furthermore, hemin pretreatment induced HO-1 expression in cells, which partially reduced the accumulation of reactive oxygen species induced by CuNPs and increased the levels of antioxidant enzymes.

conclusionCuNPs exert cytotoxic effects on human ovarian granulosa cells by inducing oxidative stress, and may induce HO-1 expression via the MAPK14-Nrf2 signaling pathway. Moreover, HO-1 protects against oxidative stress induced by CuNPs.

Indexed as

AntioxidantsApoptosisCell Line, TumorCell SurvivalCopperHeme Oxygenase-1HumansMembrane Potential, MitochondrialMetal NanoparticlesNeoplasm ProteinsOxidation-ReductionOxidative StressReactive Oxygen SpeciesSignal TransductionAntioxidantsCopperHeme Oxygenase-1Neoplasm ProteinsReactive Oxygen Speciescopper nanoparticlescytotoxicityheme oxygenase 1oxidative stress

Identifiers

PMID33664571
PMCPMC7924257
OpenAlexW3130176833

What OpenQuestion holds

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LicenceCC BY-NC
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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.