Evidence map›Paper›PMID 23922990›Full record

ArticlePloS one2013

Telomerase contributes to fludarabine resistance in primary human leukemic lymphocytes.

May Shawi, Tsz Wai Chu, Veronica Martinez-Marignac, Y Yu, Sergei M Gryaznov, James B Johnston, Susan P Lees-Miller, Sarit E Assouline, Chantal Autexier, Raquel Aloyz

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Review
  3. Telomerase and drug resistance in cancer.Cellular and molecular life sciences : CMLS · 2017
    Review
  4. Article
  5. Review
  6. Article
  7. Telomeres, telomerase and colorectal cancer.World journal of gastroenterology · 2014
    Review
  8. 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 5 institutions in 2 countries.

May ShawiDepartment of Medicine, Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.
Tsz Wai Chu
Veronica Martinez-Marignac
Y Yu
Sergei M Gryaznov
James B Johnston
Susan P Lees-Miller
Sarit E Assouline
Chantal Autexier
Raquel Aloyz
Jewish General Hospital · CAMcGill University · CAUniversity of Calgary · CACancerCare Manitoba · CAMenlo School · US

Funding

Canadian Institutes of Health Research MOP-81215
6 · The paper itself

Abstract

We report that Imetelstat, a telomerase inhibitor that binds to the RNA component of telomerase (hTR), can sensitize primary CLL lymphocytes to fludarabine in vitro. This effect was observed in lymphocytes from clinically resistant cases and with cytogenetic abnormalities associated with bad prognosis. Imetelstat mediated-sensitization to fludarabine was not associated with telomerase activity, but with the basal expression of Ku80. Since both Imetelstat and Ku80 bind hTR, we assessed 1) if Ku80 and Imetelstat alter each other's binding to hTR in vitro and 2) the effect of an oligonucleotide complementary to the Ku binding site in hTR (Ku oligo) on the survival of primary CLL lymphocytes exposed to fludarabine. We show that Imetelstat interferes with the binding of Ku70/80 (Ku) to hTR and that the Ku oligo can sensitize CLL lymphocytes to FLU. Our results suggest that Ku binding to hTR may contribute to fludarabine resistance in CLL lmphocytes. This is the first report highlighting the potentially broad effectiveness of Imetelstat in CLL, and the potential biological and clinical implications of a functional interaction between Ku and hTR in primary human cancer cells.

Indexed as

AdultAgedAged, 80 and overAntineoplastic AgentsCatalytic DomainChromosome DeletionChromosomes, Human, Pair 11Chromosomes, Human, Pair 17DNA HelicasesDrug Resistance, NeoplasmEnzyme ActivationGene Expression Regulation, LeukemicHistonesHumansIndolesKu AutoantigenAntineoplastic AgentsDNA HelicasesfludarabineH2AX protein, humanHistonesimetelstatIndolesKu AutoantigenNiacinamideOligonucleotidesTelomeraseVidarabineXRCC5 protein, human

Identifiers

PMID23922990
PMCPMC3726637
OpenAlexW2026542497

What OpenQuestion 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 OpenQuestion graph.