Evidence map›Paper›PMID 18594540›Full record

ArticleBritish journal of cancer2008

Expression of AT1 and AT2 angiotensin receptors in astrocytomas is associated with poor prognosis.

O Arrieta, B Pineda-Olvera, P Guevara-Salazar, N Hernández-Pedro, D Morales-Espinosa, T L Cerón-Lizarraga, C H González-De la Rosa, D Rembao, B Segura-Pacheco, J Sotelo

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
1.2field-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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Unlocking Novel Therapeutic Potential of Angiotensin II Receptor Blockers.International journal of molecular sciences · 2025
    Review
  5. Article
  6. Article
  7. The ATMolecules (Basel, Switzerland) · 2023
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Oncogenic mechanisms in renal insufficiency.Clinical kidney journal · 2021
    Review
  16. Article
  17. Risk of lung cancer and renin-angiotensin blockade: a concise review.Journal of cancer research and clinical oncology · 2021
    Review
  18. Article
  19. Review
  20. Review
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 4 institutions in 2 countries.

O ArrietaExperimental Oncology Laboratory and Medical Oncology Department, Instituto Nacional de Cancerología (INCan), Tlalpan 14080, México. ogar@servidor.unam.mx
B Pineda-Olvera
P Guevara-Salazar
N Hernández-Pedro
D Morales-Espinosa
T L Cerón-Lizarraga
C H González-De la Rosa
D Rembao
B Segura-Pacheco
J Sotelo
Instituto Nacional de Cancerología · COInstituto Nacional de Neurología y Neurocirugía · MXInstituto Nacional de Cancerología · MXUniversidad Autónoma Metropolitana · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Astrocytomas develop intense vascular proliferation, essential for tumour growth and invasiveness. Angiotensin II (ANGII) was initially described as a vasoconstrictor; recent studies have shown its participation in cellular proliferation, vascularisation, and apoptosis. We conducted a prospective study to evaluate the expression of ANGII receptors - AT1 and AT2 - and their relationship with prognosis. We studied 133 tumours from patients with diagnosis of astrocytoma who underwent surgery from 1997 to 2002. AT1 and AT2 were expressed in 52 and 44% of the tumours, respectively, when determined by both reverse transcriptase-polymerase chain reaction and immunohistochemistry. Ten per cent of low-grade astrocytomas were positive for AT1, whereas grade III and IV astrocytomas were positive in 67% (P<0.001). AT2 receptors were positive in 17% of low-grade astrocytomas and in 53% of high-grade astrocytomas (P=0.01). AT1-positive tumours showed higher cellular proliferation and vascular density. Patients with AT1-positive tumours had a lower survival rate than those with AT1-negative (P<0.001). No association to survival was found for AT2 in the multivariate analysis. Expression of AT1 and AT2 is associated with high grade of malignancy, increased cellular proliferation, and angiogenesis, and is thus related to poor prognosis. These findings suggest that ANGII receptors might be potential therapeutic targets for high-grade astrocytomas.

Indexed as

AstrocytomaBrain NeoplasmsFemaleHumansMaleMiddle AgedPrognosisReceptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2Receptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2

Identifiers

PMID18594540
PMCPMC2453037
OpenAlexW1986810093

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.