Evidence map›Paper›PMID 10597217›Full record

ArticleOncogene1999

Telomerase inhibition by peptide nucleic acids reverses 'immortality' of transformed human cells.

M A Shammas, C G Simmons, D R Corey, R J Shmookler Reis

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Computationally designed peptide inhibitors of the ubiquitin E3 ligase SCF(Fbx4).Chembiochem : a European journal of chemical biology · 2013
    Article
  10. Article
  11. Article
  12. Telomeres, lifestyle, cancer, and aging.Current opinion in clinical nutrition and metabolic care · 2011
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Telomere maintenance in laser capture microdissection-purified Barrett's adenocarcinoma cells and effect of telomerase inhibition in vivo.Clinical cancer research : an official journal of the American Association for Cancer Research · 2008
    Article
  18. Article
  19. Article
  20. Review
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

4 authors.

M A ShammasDepartment of Geriatrics, University of Arkansas for Medical Sciences, Little Rock 72205, USA.
C G Simmons
D R Corey
R J Shmookler Reis

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Telomerase activity, the ability to add telomeric repeats to the ends of chromosomes, has been detected in most immortal cell lines including tumor cells, but is low or absent in most diploid, mortal cells such as those of somatic tissues. Peptide nucleic acids (PNAs), analogs of DNA or RNA which bind to complementary nucleic acids with very high affinity, were co-electroporated into immortal human cells along with a selectable plasmid. Introduction of PNAs inverse-complementary to telomerase RNA effectively inhibited telomerase activity in intact cells, shortened telomeres, reduced colony size, and arrested cell proliferation after a lag period of 5-30 cell generations, consistent with suppression of their 'immortality'. Electroporation of selection plasmid alone had no effect, while PNAs of altered sequence were markedly less effective in each assay. This constitutes the first demonstration of cell growth arrest through telomerase inhibition, upon treatment of intact cells with an exogenous compound which can be efficiently delivered in vivo. The phenotype of telomerase-inhibited transformed cells differs from senescence of normal diploid fibroblasts, but rather resembles the crisis state of incompletely transformed cells.

Indexed as

Amino Acid Metabolism, Inborn ErrorsAtaxia TelangiectasiaCell DivisionCell Line, TransformedCell Transformation, NeoplasticCellular SenescenceElectroporationEnzyme InductionEnzyme InhibitorsHumansPeptide Nucleic AcidsRNA, MessengerTelomeraseTransfectionEnzyme InhibitorsPeptide Nucleic AcidsRNA, MessengerTelomerase

Identifiers

PMID10597217

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.