Evidence map›Paper›PMID 18451152›Full record

ArticleCancer research2008

Dual function of pancreatic endoplasmic reticulum kinase in tumor cell growth arrest and survival.

Aparna C Ranganathan, Shishir Ojha, Antonis Kourtidis, Douglas S Conklin, Julio A Aguirre-Ghiso

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

67 citing papers in PubMed, 112 citations in OpenAlex.

  1. Organelle contact sites in cancer cells.Cell death & disease · 2026
    Review
  2. Review
  3. Cancer Cell Dormancy in the Bone Microenvironment.Current osteoporosis reports · 2025
    Review
  4. Review
  5. Article
  6. Review
  7. Stress response regulation of mRNA translation: Implications for antioxidant enzyme expression in cancer.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Review
  8. How much do we know about the metastatic process?Clinical & experimental metastasis · 2024
    Review
  9. Article
  10. Review
  11. A PERK-Specific Inhibitor Blocks Metastatic Progression by Limiting Integrated Stress Response-Dependent Survival of Quiescent Cancer Cells.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
  12. Article
  13. Unfolded protein response and angiogenesis in malignancies.Biochimica et biophysica acta. Reviews on cancer · 2023
    Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

7 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Aparna C RanganathanDepartment of Biomedical Sciences, School of Public Health, Center for Excellence in Cancer Genomics, University at Albany, State University of New York, Rensselaer, New York, USA.
Shishir Ojha
Antonis Kourtidis
Douglas S Conklin
Julio A Aguirre-Ghiso
University at Albany, State University of New York · US

Funding

Functional Determinants of Metastatic DormancyR01CA109182 · NCI · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI AGUIRRE-GHISO, JULIO A. · 2005 to 2025
$8.3M
Mechanisms of cancer dormancy and drug resistanceF32CA117621 · NCI · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI SERTIL, APARNA RANGANATHAN · 2005 to 2007
$151k
NCI NIH HHS CA109182NCI NIH HHS F32 CA117621NCI NIH HHS R01 CA109182
6 · The paper itself

Abstract

Pancreatic endoplasmic reticulum kinase (PERK)-eIF2 alpha signaling, a component of the endoplasmic reticulum (ER) stress response, has been proposed as a therapeutic target due to its importance to cell survival in hypoxic tumors. In this study, we show that in addition to promoting survival, PERK can also suppress tumor growth of advanced carcinomas. Our results show that in squamous carcinoma T-HEp3 cells, which display low PERK-eIF2 alpha signaling, inducible activation of an Fv2E-PERK fusion protein results in a strong G(0)-G(1) arrest in vitro. Most importantly, Fv2E-PERK activation, in addition to promoting survival in vitro, inhibits T-HEp3 and SW620 colon carcinoma growth in vivo. Increased PERK activation is linked to enhanced p-eIF2 alpha levels, translational repression, and a decrease in Ki67, pH 3, and cycD1/D3 levels, but not to changes in angiogenesis or apoptosis. Experimental reduction of PERK activity, or overexpression of GADD34 in a spontaneously arising in vivo quiescent variant of HEp3 cells that displays strong basal PERK-eIF2 alpha activation, reverts their quiescent phenotype. We conclude that the growth-inhibitory function of PERK is preserved in tumors and upon proper reactivation can severely inhibit tumor growth through induction of quiescence. This is an important consideration in the development of PERK-based therapies, as its inhibition may facilitate the proliferation of slow-cycling or dormant tumor cells.

Indexed as

Cell ProliferationAnimalsApoptosisCarcinoma, Squamous CellCell SurvivalChick EmbryoeIF-2 KinaseEukaryotic Initiation Factor-2Gene Expression Regulation, NeoplasticHumansMiceMice, Inbred BALB CMice, NudeSignal TransductionTumor Cells, CulturedeIF-2 KinaseEukaryotic Initiation Factor-2

Identifiers

PMID18451152
PMCPMC2587150
OpenAlexW2080034938

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.