Evidence map›Paper›PMID 21666701›Full record

ArticleActa pharmacologica Sinica2011

Inhibition of hypoxia-inducible carbonic anhydrase-IX enhances hexokinase II inhibitor-induced hepatocellular carcinoma cell apoptosis.

Su-jong Yu, Jung-hwan Yoon, Jeong-hoon Lee, Sun-jung Myung, Eun-sun Jang, Min-sun Kwak, Eun-ju Cho, Ja-june Jang, Yoon-jun Kim, Hyo-suk Lee

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In one paragraph

Article in Acta pharmacologica Sinica, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

22 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  7. CA10 is associated with HBV-related hepatocarcinogenesis.Biochemistry and biophysics reports · 2022
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  16. Targeting carbonic anhydrase IX activity and expression.Molecules (Basel, Switzerland) · 2015
    Review
  17. Article
  18. Article
  19. Review
  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 1 institution in 1 country.

Su-jong YuDepartment of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul 110-744, Korea.
Jung-hwan Yoon
Jeong-hoon Lee
Sun-jung Myung
Eun-sun Jang
Min-sun Kwak
Eun-ju Cho
Ja-june Jang
Yoon-jun Kim
Hyo-suk Lee
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe hypoxic condition within large or infiltrative hypovascular tumors produces intracellular acidification, which could activate many signaling pathways and augment cancer cell growth and invasion. Carbonic anhydrase-IX (CA-IX) is an enzyme lowering pH. This study is to examine whether hypoxia induces CA-IX in hepatocellular carcinoma (HCC) cells, and to evaluate its clinical implication in HCC patients.

methodsHuman HCC cell lines (Huh-7 and HepG2 cells) were used, and cell growth was assessed using MTS assay. CA-IX expression and apoptotic/kinase signaling were evaluated using immunoblotting. The cells were transfected with CA-IX-specific siRNA, or treated with its inhibitor 4-(2-aminoethyl) benzenesulfonamide (CAI#1), and/or the hexokinase II inhibitor, 3-bromopyruvate (3-BP). A clinic pathological analysis of 69 patients who underwent an HCC resection was performed using a tissue array.

resultsIncubation of HCC cells under hypoxia (1% O₂, 5% CO₂, 94% N₂) for 36 h significantly increased CA-IX expression level. CAI#1 (400 μmol/L) or CA-IX siRNA (100 μmol/L) did not influence HCC cell growth and induce apoptosis. However, CAI#1 or CA-IX siRNA at these concentrations enhanced the apoptosis induced by 3-BP (100 μmol/L). This enhancement was attributed to increased ER stress and JNK activation, as compared with 3-BP alone. Furthermore, a clinic pathological analysis of 69 HCC patients revealed that tumor CA-IX intensity was inversely related to E-cadherin intensity.

conclusionInhibition of hypoxia-induced CA-IX enhances hexokinase II inhibitor-induced HCC apoptosis. Furthermore, CA-IX expression profiles may have prognostic implications in HCC patients. Thus, the inhibition of CA-IX, in combination with a hexokinase II inhibitor, may be therapeutically useful in patients with HCCs that are aggressively growing in a hypoxic environment.

Indexed as

Antigens, NeoplasmAntineoplastic AgentsApoptosisBenzenesulfonamidesCarbonic Anhydrase InhibitorsCarbonic Anhydrase IXCarbonic AnhydrasesCarcinoma, HepatocellularCell HypoxiaCell Line, TumorGene Expression Regulation, NeoplasticHep G2 CellsHexokinaseHumansLiver NeoplasmsPyruvates4-(2-aminoethyl)benzenesulfonamideAntigens, NeoplasmAntineoplastic AgentsBenzenesulfonamidesbromopyruvateCA9 protein, humanCarbonic Anhydrase InhibitorsCarbonic Anhydrase IXCarbonic AnhydrasesHexokinasePyruvatesRNA, Small InterferingSulfonamides

Identifiers

PMID21666701
PMCPMC4003119
OpenAlexW2138864156

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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.