Evidence map›Paper›PMID 22145922›Full record

ArticleCancer science2012

Downregulating hypoxia-inducible factor-2α improves the efficacy of doxorubicin in the treatment of hepatocellular carcinoma.

Changjun He, Xue-Pu Sun, Haiquan Qiao, Xian Jiang, Dongdong Wang, Xiangguo Jin, Xuesong Dong, Jizhou Wang, Hongchi Jiang, Xueying Sun

Open access · bronzeAbstract read
In one paragraph

Article in Cancer science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Effects of Sensitized Sorafenib with a Paeoniflorin and Geniposide Mixture on Liver Cancer via the NF-Evidence-based complementary and alternative medicine : eCAM · 2022
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Liposomal curcumin and its application in cancer.International journal of nanomedicine · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. 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 2 institutions in 2 countries.

Changjun HeThe Hepatosplenic Surgery Center, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Xue-Pu Sun
Haiquan Qiao
Xian Jiang
Dongdong Wang
Xiangguo Jin
Xuesong Dong
Jizhou Wang
Hongchi Jiang
Xueying Sun
Harbin Medical University · CNUniversity of Auckland · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hypoxic microenvironment inside solid tumors, including hepatocellular carcinoma (HCC), is a major cause of tumor resistance to chemotherapy. The recently identified hypoxia-inducible factor (HIF)-2 executes the hypoxia response. Its expression feature and transcriptional targets indicate a possible dominance of HIF-2 in regulating genes in HCC. The aim of the present study was to determine whether transfection of siRNA targeting HIF-2α could enhance the efficacy of doxorubicin, the most commonly used drug in the treatment of HCC. Transfection of HIF-2 siRNA into human HCC cells downregulated the expression of HIF-2α, vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-α, and cyclin D1, but had little effect on the expression of HIF-1α, fms-related tyrosine kinase-1 (Flt-1), the glucose transporter (GLUT)-1, and lactate dehydrogenase A (LDHA). Doxorubicin itself only downregulated VEGF expression. Furthermore, HIF-2 siRNA inhibited proliferation, induced cell cycle arrest at the G(0)/G(1) phase, and acted synergistically with doxorubicin to inhibit the growth of human HCC cells in vitro. Transfection of HIF-2 siRNA also downregulated tumoral expression of HIF-2α, VEGF, TGF-α, and cyclin D1 in vivo, and acted synergistically with doxorubicin to suppress the growth of HepG2 tumors established in immunodeficient mice by inhibiting cell proliferation, tumor angiogenesis and microvessel perfusion. The results of the present study suggest that targeting HIF-2α with siRNA warrants investigation as a potential strategy to enhance the efficacy of doxorubicin in the treatment of HCC.

Indexed as

AnimalsAntineoplastic AgentsBasic Helix-Loop-Helix ProteinsBlotting, WesternCarcinoma, HepatocellularCell Line, TumorDown-RegulationDoxorubicinEndothelial PAS Domain-Containing Protein 1Gene Expression Regulation, NeoplasticGenetic TherapyHumansImmunohistochemistryLiver NeoplasmsMaleMiceAntineoplastic AgentsBasic Helix-Loop-Helix ProteinsDoxorubicinEndothelial PAS Domain-Containing Protein 1RNA, Small Interfering

Identifiers

PMID22145922
PMCPMC7712417
OpenAlexW1971106657

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.