Evidence map›Paper›PMID 22735790›Full record

ArticleGynecologic oncology2012

Metformin impairs the growth of liver kinase B1-intact cervical cancer cells.

Xuxian Xiao, Qiongqiong He, Changming Lu, Kaitlin D Werle, Rui-Xun Zhao, Jianfeng Chen, Ben C Davis, Rutao Cui, Jiyong Liang, Zhi-Xiang Xu

Abstract read
In one paragraph

Article in Gynecologic oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Review
  7. Autophagy in Cancer: A Metabolic Perspective.Sub-cellular biochemistry · 2022
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  10. Corilagin prevents SARS-CoV-2 infection by targeting RBD-ACE2 binding.Phytomedicine : international journal of phytotherapy and phytopharmacology · 2021
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  13. Autophagy Paradox of Cancer: Role, Regulation, and Duality.Oxidative medicine and cellular longevity · 2021
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  14. Article
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  16. Roles of AMP-Activated Protein Kinase (AMPK) in Mammalian Reproduction.Frontiers in cell and developmental biology · 2020
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  20. Metformin Inhibit Lung Cancer Cell Growth and Invasion in Vitro as Well as Tumor Formation in Vivo Partially by Activating PP2A.Medical science monitor : international medical journal of experimental and clinical research · 2019
    Article
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 3 institutions in 1 country.

Xuxian XiaoDivision of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Qiongqiong He
Changming Lu
Kaitlin D Werle
Rui-Xun Zhao
Jianfeng Chen
Ben C Davis
Rutao Cui
Jiyong Liang
Zhi-Xiang Xu
University of Alabama at Birmingham · USBoston University · USThe University of Texas MD Anderson Cancer Center · US

Funding

Treatment of HIV- and HIV+ Patients with HPV16+ CIN2/3 Using pNGLV4a-hCRTE6E7L2 DNA vaccine administered intramuscularly via electroporationP50CA098252 · NCI · JOHNS HOPKINS UNIVERSITY · PI Richard Bruce Roden · 2003 to 2026
$53.5M
The role of LKB1 in the maintenance of genomic stability.R01CA133053 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI XU, ZHI-XIANG · 2009 to 2013
$1.2M
NCI NIH HHS P50 CA098252NCI NIH HHS P50CA098252NCI NIH HHS R01 CA133053NCI NIH HHS R01CA133053
6 · The paper itself

Abstract

objectiveMetformin is one of the most widely used drugs for the treatment of type 2 diabetes. Recent investigations demonstrated that application of metformin reduces cancer risk. The present study aimed to determine the role of liver kinase B1 (LKB1) in the response of cervical cancer cells to metformin.

methodsLKB1 expression and the integrity of LKB1-AMPK signaling were determined with immunoblot in 6 cervical cancer cell lines. Cellular sensitivity to metformin was analyzed with MTT assay.

resultsMetformin inhibited growth of cervical cancer cells, C33A, Me180, and CaSki, but was less effective against HeLa, HT-3, and MS751 cells. Analyzing the expression status and the integrity of LKB1-AMPK-mTOR signaling, we found that cervical cancer cells sensitive to metformin were LKB1 intact and exerted an integral AMPK-mTOR signaling response after the treatment. Ectopic expression of LKB1 with stable transduction system or inducible expression construct in endogenous LKB1 deficient cells improved the activation of AMPK, promoted the inhibition of mTOR, and prompted the sensitivity of cells to metformin. In contrast, knock-down of LKB1 compromised cellular response to metformin. Our further investigation demonstrated that metformin could induce both apoptosis and autophagy in cervical cancer cells when LKB1 is expressed.

conclusionsMetformin is a potential drug for the treatment of cervical cancers, in particular to those with intact LKB1 expression. Administration of cell metabolism agonists may enhance LKB1 tumor suppression, inhibit cell growth, and reduce tumor cell viability via the activation of LKB1-AMPK signaling.

Indexed as

AMP-Activated Protein Kinase KinasesAMP-Activated Protein KinasesApoptosisAutophagyCell Growth ProcessesCell Line, TumorCell SurvivalFemaleHeLa CellsHumansMetforminProtein Serine-Threonine KinasesSignal TransductionTOR Serine-Threonine KinasesUterine Cervical NeoplasmsAMP-Activated Protein Kinase KinasesAMP-Activated Protein KinasesMetforminMTOR protein, humanProtein Serine-Threonine KinasesSTK11 protein, humanTOR Serine-Threonine Kinases

Identifiers

PMID22735790
PMCPMC3432698
OpenAlexW1987557660

What OpenQuestion holds

Textmetadata
LicenceTDM
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.