Evidence map›Paper›PMID 20075985›Full record

ArticleCancer gene therapy2010

Down-regulation of HIF-1alpha by oncolytic reovirus infection independently of VHL and p53.

I-R Cho, S S Koh, H-J Min, E-H Park, S Ratakorn, B H Jhun, S H Jeong, Y H Yoo, H D Youn, R N Johnston and 1 more

Abstract read
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Article in Cancer gene therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Impact of Hypoxia over Human Viral Infections and Key Cellular Processes.International journal of molecular sciences · 2021
    Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. YC-1 induces GBioMedicine · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

11 authors at 5 institutions in 2 countries.

I-R ChoDepartment of Cogno-Mechatronics Engineering, BK21 Nanofusion Technology Team, Pusan National University, Miryang, Republic of Korea.
S S Koh
H-J Min
E-H Park
S Ratakorn
B H Jhun
S H Jeong
Y H Yoo
H D Youn
R N Johnston
Y-H Chung
Pusan National University · KRDong-A University · KRKorea Research Institute of Bioscience and Biotechnology · KRSeoul National University · KRUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many oncolytic viruses are currently being tested as potential cancer therapeutic agents. To be effective, these viruses must replicate and propagate efficiently through the tumor mass. However, it is possible that the hypoxia that characterizes many tumors may be an obstacle to viral therapy because of its inhibition of viral replication and propagation. We, therefore, decided to test how oncolytic reovirus and its target cells respond to hypoxia. We found that reovirus infection suppresses hypoxia inducible factor (HIF)-1alpha protein levels (but not transcript abundance) in colon cancer HCT116 cells under CoCl(2) or hypoxia. Reovirus infection was able to reduce HIF-1alpha levels in both von Hippel Lindau (VHL)-/- renal carcinoma A498 and p53-/- HCT116 cells, indicating that the decrease of HIF-1alpha mediated by reovirus requires neither VHL nor p53 proteins. However, treatment with the inhibitor MG132 restored HIF-1alpha levels, suggesting that reovirus-induced HIF-1alpha decrease needs proteosomal activity. A498 VHL-/- cells with constitutive expression of HIF-1alpha were relatively resistant to reovirus-induced apoptosis when compared with A498 VHL+/+ cells. However, we found that the use of YC-1 to target HIF-1alpha promoted reovirus-induced apoptosis in A498 VHL-/- cells. Accordingly, we propose that reovirus may be used together with YC-1 as a potential therapeutic agent against chemoresistant or radioresistant tumors that are hypoxic and show increased levels of HIF-1alpha.

Indexed as

AnimalsApoptosisBlotting, WesternCell HypoxiaCell Line, TumorDown-RegulationHCT116 CellsHumansHypoxia-Inducible Factor 1, alpha SubunitMiceOncolytic VirusesReverse Transcriptase Polymerase Chain ReactionTumor Suppressor Protein p53Von Hippel-Lindau Tumor Suppressor ProteinHypoxia-Inducible Factor 1, alpha SubunitTumor Suppressor Protein p53Von Hippel-Lindau Tumor Suppressor Protein

Identifiers

PMID20075985
OpenAlexW2041045860

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.