Evidence map›Paper›PMID 34053456›Full record

ArticleBiology direct2021

High-fat diet impairs ferroptosis and promotes cancer invasiveness via downregulating tumor suppressor ACSL4 in lung adenocarcinoma.

Yixiang Zhang, Songyu Li, Fengzhou Li, Changsheng Lv, Qing-Kai Yang

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Biology direct, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 50 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 2 pooled it
9.4field-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

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 90 citations in OpenAlex.

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  18. International journal of molecular sciences · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Yixiang ZhangDepartment of Thoracic Surgery, The First Affiliated Hospital of Dalian Medicine University, No. 222 Zhongshan Road, Liaoning, 116000, Dalian, China.
Songyu LiDepartment of Oncology, Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Lvshun South Road, Liaoning, 116044, Dalian, China.
Fengzhou LiDepartment of Thoracic Surgery, The First Affiliated Hospital of Dalian Medicine University, No. 222 Zhongshan Road, Liaoning, 116000, Dalian, China.
Changsheng LvDepartment of Thoracic Surgery, The First Affiliated Hospital of Dalian Medicine University, No. 222 Zhongshan Road, Liaoning, 116000, Dalian, China. 75808900@qq.com.
Qing-Kai YangDepartment of Oncology, Institute of Cancer Stem Cell, Dalian Medical University, 9 Western Lvshun South Road, Liaoning, 116044, Dalian, China. 18098876150@163.com.
Dalian Medical University · CNFirst Affiliated Hospital of Dalian Medical University · CN

Funding

National Natural Science Foundation of China 31471328National Natural Science Foundation of China 81622040
6 · The paper itself

Abstract

backgroundLong-chain acyl-CoA synthetase-4 (ACSL4) is involved in fatty acid metabolism, and aberrant ACSL4 expression could be either tumorigenic or tumor-suppressive in different tumor types. However, the function and clinical significance of ACSL4 in lung adenocarcinoma remain elusive.

resultsACSL4 was frequently downregulated in lung adenocarcinoma when analyzing both the TCGA database and the validation samples, and the lower ACSL4 expression was correlated with a worse prognosis. Using gene set enrichment analysis, we found that high ACSL4 expression was frequently associated with the oxidative stress pathway, especially ferroptosis-related proteins. In vitro functional studies showed that knockdown of ACSL4 increased tumor survival/invasiveness and inhibited ferroptosis, while ACSL4 overexpression exhibited the opposite effects. Moreover, high-fat treatment could also inhibit erastin-induced ferroptosis by affecting ACSL4 expression. The anti-tumor effects of ferroptosis inducers and the anti-ferroptosis effects of the high-fat diet were further validated using the mouse xenograft model.

conclusionsACSL4 plays a tumor-suppressive role in lung adenocarcinoma by suppressing tumor survival/invasiveness and promoting ferroptosis. Our study provided a theoretical reference for the application of ferroptotic inducers and dietary guidance for lung adenocarcinoma patients.

Indexed as

Gene Expression Regulation, NeoplasticA549 CellsAdenocarcinoma of LungAnimalsCell Line, TumorCoenzyme A LigasesDiet, High-FatDown-RegulationFerroptosisHumansLong-Chain-Fatty-Acid-CoA LigaseLung NeoplasmsMiceNeoplasm InvasivenessCoenzyme A LigasesLong-Chain-Fatty-Acid-CoA LigaseFerroptosisHigh-fat dietLong-chain acyl-CoA synthetase-4Lung adenocarcinoma

Identifiers

PMID34053456
PMCPMC8166005
OpenAlexW3165682852

What OpenQuestion holds

Textmetadata
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.