Evidence map›Paper›PMID 22389381›Full record

ArticleEndocrine-related cancer2012

Metformin inhibits growth and decreases resistance to anoikis in medullary thyroid cancer cells.

Joanna Klubo-Gwiezdzinska, Kirk Jensen, John Costello, Aneeta Patel, Victoria Hoperia, Andrew Bauer, Kenneth D Burman, Leonard Wartofsky, Vasyl Vasko

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Endocrine-related cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Anoikis: To Die or Not to Die?International journal of molecular sciences · 2026
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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 2 institutions in 1 country.

Joanna Klubo-GwiezdzinskaDepartment of Pediatrics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, Maryland 20814-4712, USA.
Kirk Jensen
John Costello
Aneeta Patel
Victoria Hoperia
Andrew Bauer
Kenneth D Burman
Leonard Wartofsky
Vasyl Vasko
Uniformed Services University of the Health Sciences · USMedStar Washington Hospital Center · US

Funding

NoneU2GPS000658 · PS · NATIONAL AIDS COUNCIL · PI MAGURE, TAPUWA · 2006 to 2007
$200k
6 · The paper itself

Abstract

Medullary thyroid cancer (MTC) is associated with activation of mammalian target of rapamycin (mTOR) signaling pathways. Recent studies showed that the antidiabetic agent metformin decreases proliferation of cancer cells through 5'-AMP-activated protein kinase (AMPK)-dependent inhibition of mTOR. In the current study, we assessed the effect of metformin on MTC cells. For this purpose, we determined growth, viability, migration, and resistance to anoikis assays using two MTC-derived cell lines (TT and MZ-CRC-1). Expressions of molecular targets of metformin were examined in MTC cell lines and in 14 human MTC tissue samples. We found that metformin inhibited growth and decreased expression of cyclin D1 in MTC cells. Treatment with metformin was associated with inhibition of mTOR/p70S6K/pS6 signaling and downregulation of pERK in both TT and MZ-CRC-1 cells. Metformin had no significant effects on pAKT in the cell lines examined. Metformin-inducible AMPK activation was noted only in TT cells. Treatment with AMPK inhibitor (compound C) or AMPK silencing did not prevent growth inhibitory effects of metformin in TT cells. Metformin had no effect on MTC cell migration but reduced the ability of cells to form multicellular spheroids in nonadherent conditions. Immunostaining of human MTC showed over-expression of cyclin D1 in all tumors compared with corresponding normal tissue. Activation of mTOR/p70S6K was detected in 8/14 (57.1%) examined tumors. Together, these findings indicate that growth inhibitory effects in MTC cells are associated with downregulation of both mTOR/6SK and pERK signaling pathways. Expression of metformin's molecular targets in human MTC cells suggests its potential utility for the treatment of MTC in patients.

Indexed as

AMP-Activated Protein Kinase KinasesAnoikisAntineoplastic AgentsCarcinoma, NeuroendocrineCell Line, TumorCell MovementCell ProliferationHumansMetforminMitogen-Activated Protein KinasesProtein Kinase InhibitorsProtein KinasesProto-Oncogene Proteins c-aktRibosomal Protein S6 KinasesSignal TransductionThyroid NeoplasmsAMP-Activated Protein Kinase KinasesAntineoplastic AgentsMetforminMitogen-Activated Protein KinasesMTOR protein, humanProtein Kinase InhibitorsProtein KinasesProto-Oncogene Proteins c-aktRibosomal Protein S6 KinasesTOR Serine-Threonine Kinases

Identifiers

PMID22389381
OpenAlexW2102192525

What OpenQuestion holds

Textmetadata
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.