Evidence mapPaperPMID 34234193Full record

ArticleScientific reports2021

Metformin-induced ROS upregulation as amplified by apigenin causes profound anticancer activity while sparing normal cells.

Madhuri Shende Warkad, Chea-Ha Kim, Beom-Goo Kang, Soo-Hyun Park, Jun-Sub Jung, Jing-Hui Feng, Gozde Inci, Sung-Chan Kim, Hong-Won Suh, Soon Sung Lim and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Necroptosis in pancreatic cancer: Molecular mechanisms and therapeutic implications.Apoptosis : an international journal on programmed cell death · 2026
    Pooled it
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  14. The Role of Oxidative Stress in Trisomy 21 Phenotype.Cellular and molecular neurobiology · 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

11 authors at 2 institutions in 1 country.

Madhuri Shende WarkadDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Chea-Ha KimDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Beom-Goo KangDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Soo-Hyun ParkFrontBio Inc. #301, Bio-2, Chuncheon BioTown, 32 Soyanggang-ro, Chuncheon-si, Gangwon-do, 24232, Republic of Korea (South Korea).
Jun-Sub JungFrontBio Inc. #301, Bio-2, Chuncheon BioTown, 32 Soyanggang-ro, Chuncheon-si, Gangwon-do, 24232, Republic of Korea (South Korea).
Jing-Hui FengDepartment of Pharmacology, Institute of Natural Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Gozde InciDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Sung-Chan KimDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Hong-Won SuhDepartment of Pharmacology, Institute of Natural Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Soon Sung LimDepartment of Food Science and Nutrition, The Korean Institute of Nutrition, College of Natural Science , Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea).
Jae-Yong LeeDepartment of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University, 1 Hallymdeahak-gil, Chuncheon, 24252, Republic of Korea (South Korea). jyl3746@gmail.com.
Hallym University · KRCTCBio (South Korea) · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metformin increased cellular ROS levels in AsPC-1 pancreatic cancer cells, with minimal effect in HDF, human primary dermal fibroblasts. Metformin reduced cellular ATP levels in HDF, but not in AsPC-1 cells. Metformin increased AMPK, p-AMPK (Thr172), FOXO3a, p-FOXO3a (Ser413), and MnSOD levels in HDF, but not in AsPC-1 cells. p-AMPK and p-FOXO3a also translocated from the cytosol to the nucleus by metformin in HDF, but not in AsPC-1 cells. Transfection of si-FOXO3a in HDF increased ROS levels, while wt-FOXO3a-transfected AsPC-1 cells decreased ROS levels. Metformin combined with apigenin increased ROS levels dramatically and decreased cell viability in various cancer cells including AsPC-1 cells, with each drug used singly having a minimal effect. Metformin/apigenin combination synergistically decreased mitochondrial membrane potential in AsPC-1 cells but to a lesser extent in HDF cells. Metformin/apigenin combination in AsPC-1 cells increased DNA damage-, apoptosis-, autophagy- and necroptosis-related factors, but not in HDF cells. Oral administration with metformin/apigenin caused dramatic blocks tumor size in AsPC-1-xenografted nude mice. Our results suggest that metformin in cancer cells differentially regulates cellular ROS levels via AMPK-FOXO3a-MnSOD pathway and combination of metformin/apigenin exerts anticancer activity through DNA damage-induced apoptosis, autophagy and necroptosis by cancer cell-specific ROS amplification.

Indexed as

Adenosine TriphosphateAMP-Activated Protein KinasesAntineoplastic AgentsApigeninApoptosisAutophagyCell Line, TumorCell SurvivalDrug SynergismFibroblastsForkhead Box Protein O3HumansMetforminModels, BiologicalReactive Oxygen SpeciesSignal TransductionAdenosine TriphosphateAMP-Activated Protein KinasesAntineoplastic AgentsApigeninForkhead Box Protein O3FOXO3 protein, humanMetforminReactive Oxygen Species

Identifiers

PMID34234193
PMCPMC8263563
OpenAlexW3180256722

What Socratic 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 Socratic graph.