Evidence map›Paper›PMID 21968881›Full record

ArticleLeukemia2012

AMP-dependent kinase/mammalian target of rapamycin complex 1 signaling in T-cell acute lymphoblastic leukemia: therapeutic implications.

C Grimaldi, F Chiarini, G Tabellini, F Ricci, P L Tazzari, M Battistelli, E Falcieri, R Bortul, F Melchionda, I Iacobucci and 6 more

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Leukemia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. The effect of metformin on esophageal cancer risk in patients with type 2 diabetes mellitus: a systematic review and meta‑analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021 · on this map
    Pooled it
  2. Review
  3. Review
  4. Cancers · 2024
    Review
  5. Research Progress on the Use of Metformin in Leukemia Treatment.Current treatment options in oncology · 2024
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Mechanisms by Which Obesity Impacts Survival from Acute Lymphoblastic Leukemia.Journal of the National Cancer Institute. Monographs · 2019
    Review
  20. A novel method to establish glucocorticoid resistant acute lymphoblastic leukemia cell lines.Journal of experimental & clinical cancer research : CR · 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

16 authors at 8 institutions in 3 countries.

C GrimaldiDepartment of Human Anatomy, University of Bologna, Bologna, Italy.
F Chiarini
G Tabellini
F Ricci
P L Tazzari
M Battistelli
E Falcieri
R Bortul
F Melchionda
I Iacobucci
P Pagliaro
G Martinelli
A Pession
J T Barata
J A McCubrey
A M Martelli
University of Bologna · ITPoliclinico S.Orsola-Malpighi · ITEast Carolina University · USNational Research Council · ITUniversity of Brescia · ITUniversity of Lisbon · PTUniversity of Trieste · ITUniversity of Urbino · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mammalian target of rapamycin (mTOR) serine/threonine kinase is the catalytic subunit of two multi-protein complexes, referred to as mTORC1 and mTORC2. Signaling downstream of mTORC1 has a critical role in leukemic cell biology by controlling mRNA translation of genes involved in both cell survival and proliferation. mTORC1 activity can be downmodulated by upregulating the liver kinase B1/AMP-activated protein kinase (LKB1/AMPK) pathway. Here, we have explored the therapeutic potential of the anti-diabetic drug, metformin (an LKB1/AMPK activator), against both T-cell acute lymphoblastic leukemia (T-ALL) cell lines and primary samples from T-ALL patients displaying mTORC1 activation. Metformin affected T-ALL cell viability by inducing autophagy and apoptosis. However, it was much less toxic against proliferating CD4(+) T-lymphocytes from healthy donors. Western blot analysis demonstrated dephosphorylation of mTORC1 downstream targets. Unlike rapamycin, we found a marked inhibition of mRNA translation in T-ALL cells treated with metformin. Remarkably, metformin targeted the side population of T-ALL cell lines as well as a putative leukemia-initiating cell subpopulation (CD34(+)/CD7(-)/CD4(-)) in patient samples. In conclusion, metformin displayed a remarkable anti-leukemic activity, which emphasizes future development of LKB1/AMPK activators as clinical candidates for therapy in T-ALL.

Indexed as

Signal TransductionAdenylate KinaseApoptosisBase SequenceCell Line, TumorDNA PrimersFlow CytometryHumansMechanistic Target of Rapamycin Complex 1MetforminMultiprotein ComplexesPhosphorylationPrecursor T-Cell Lymphoblastic Leukemia-LymphomaProtein BiosynthesisProteinsReal-Time Polymerase Chain ReactionAdenylate KinaseDNA PrimersMechanistic Target of Rapamycin Complex 1MetforminMultiprotein ComplexesProteinsRNA, MessengerTOR Serine-Threonine Kinases

Identifiers

PMID21968881
OpenAlexW1986740965

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.