Evidence map›Paper›PMID 27066453›Full record

ReviewFrontiers in oncology2016

Prognostic Significance of Carbonic Anhydrase IX Expression in Cancer Patients: A Meta-Analysis.

Simon J A van Kuijk, Ala Yaromina, Ruud Houben, Raymon Niemans, Philippe Lambin, Ludwig J Dubois

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 2 pooled it
10.6field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 2 syntheses or guidelines pooled it, 153 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Di-Journal of medicinal chemistry · 2025
    Article
  9. Tumor Hypoxia and CD8Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2025
    Article
  10. Article
  11. Review
  12. IL-22 regulates MASTL expression in intestinal epithelial cells.American journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

22 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

6 authors at 2 institutions in 1 country.

Simon J A van KuijkDepartment of Radiation Oncology (MAASTRO Lab), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre , Maastricht , Netherlands.
Ala YarominaDepartment of Radiation Oncology (MAASTRO Lab), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre , Maastricht , Netherlands.
Ruud HoubenDepartment of Radiation Oncology, MAASTRO Clinic , Maastricht , Netherlands.
Raymon NiemansDepartment of Radiation Oncology (MAASTRO Lab), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre , Maastricht , Netherlands.
Philippe LambinDepartment of Radiation Oncology (MAASTRO Lab), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre , Maastricht , Netherlands.
Ludwig J DuboisDepartment of Radiation Oncology (MAASTRO Lab), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Centre , Maastricht , Netherlands.
Maastro Clinic · NLMaastricht University Medical Centre · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypoxia is a characteristic of many solid tumors and an adverse prognostic factor for treatment outcome. Hypoxia increases the expression of carbonic anhydrase IX (CAIX), an enzyme that is predominantly found on tumor cells and is involved in maintaining the cellular pH balance. Many clinical studies investigated the prognostic value of CAIX expression, but most have been inconclusive, partly due to small numbers of patients included. The present meta-analysis was therefore performed utilizing the results of all clinical studies to determine the prognostic value of CAIX expression in solid tumors. Renal cell carcinoma was excluded from this meta-analysis due to an alternative mechanism of upregulation. 958 papers were identified from a literature search performed in PubMed and Embase. These papers were independently evaluated by two reviewers and 147 studies were included in the analysis. The meta-analysis revealed strong significant associations between CAIX expression and all endpoints: overall survival [hazard ratio (HR) = 1.76, 95% confidence interval (95%CI) 1.58-1.98], disease-free survival (HR = 1.87, 95%CI 1.62-2.16), locoregional control (HR = 1.54, 95%CI 1.22-1.93), disease-specific survival (HR = 1.78, 95%CI 1.41-2.25), metastasis-free survival (HR = 1.82, 95%CI 1.33-2.50), and progression-free survival (HR = 1.58, 95%CI 1.27-1.96). Subgroup analyses revealed similar associations in the majority of tumor sites and types. In conclusion, these results show that patients having tumors with high CAIX expression have higher risk of locoregional failure, disease progression, and higher risk to develop metastases, independent of tumor type or site. The results of this meta-analysis further support the development of a clinical test to determine patient prognosis based on CAIX expression and may have important implications for the development of new treatment strategies.

Indexed as

cancercarbonic anhydrase IXhypoxiameta-analysisprognosis

Identifiers

PMID27066453
PMCPMC4810028
OpenAlexW2330872052

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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.