Evidence map›Paper›PMID 19775291›Full record

ArticleBrain pathology (Zurich, Switzerland)2010

Leptin and its receptor are overexpressed in brain tumors and correlate with the degree of malignancy.

Mirko Riolfi, Rita Ferla, Luis Del Valle, Sergio Piña-Oviedo, Laura Scolaro, Rocco Micciolo, Micol Guidi, Marianna Terrasi, Gian Luigi Cetto, Eva Surmacz

Open access · greenAbstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 11% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Obesity and cancer: focus on leptin.Molecular biology reports · 2023
    Review
  8. Association of High Serum Leptin Level with Papillary Thyroid Carcinoma: A Case-Control Study.International journal of hematology-oncology and stem cell research · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. The Effect of the Leptin and Leptin Receptor Expression on the Efficacy of Neoadjuvant Chemotherapy in Breast Cancer.Medical science monitor : international medical journal of experimental and clinical research · 2019
    Article
  15. Article
  16. The influence of leptin on the process of carcinogenesis.Contemporary oncology (Poznan, Poland) · 2019
    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 4 institutions in 2 countries.

Mirko RiolfiSbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA 19122, USA.
Rita Ferla
Luis Del Valle
Sergio Piña-Oviedo
Laura Scolaro
Rocco Micciolo
Micol Guidi
Marianna Terrasi
Gian Luigi Cetto
Eva Surmacz
Temple University · USUniversity of Ferrara · ITUniversity of Trento · ITUniversity of Verona · IT

Funding

VIRAL MODEL FOR TUMOR PATHOGENESIS IN BRAINP01NS036466 · NINDS · TEMPLE UNIV OF THE COMMONWEALTH · PI KHALILI, KAMEL · 1996 to 2007
$6.6M
Involvement of Survivin in the Development of PMLR01NS055644 · NINDS · TEMPLE UNIV OF THE COMMONWEALTH · PI DEL VALLE, LUIS · 2007 to 2011
$1.5M
NINDS NIH HHS P01 NS036466NINDS NIH HHS P01NS036466NINDS NIH HHS R01 NS055644
6 · The paper itself

Abstract

Although leptin and its receptor (ObR) have emerged as important cancer biomarkers, the role of the leptin system in brain tumor development remains unknown. We screened 87 human brain tumor biopsies using immunohistochemistry and detected leptin and ObR in 55.2% and 60.9% cases, respectively. In contrast, leptin and ObR were absent in 14 samples of normal brain tissue. The presence of leptin correlated with ObR with overall concordance 80.5%. The leptin/ObR system was highly expressed in glioblastomas and anaplastic astrocytomas, while lower expression of both markers was noted in low-grade astrocytomas and gangliogliomas. The association between leptin/ObR and the degree of tumor malignancy was highly significant (P < 0.001). Using double immunofluorescence of glioblastoma tissues, we found co-expression of leptin with ObR and with the proliferation marker Ki-67 in 87% and 64% of cells, respectively. The leptin/ObR-positive tissues also expressed activated forms of STAT3 and Akt. In line with this finding, ObR-positive glioblastoma cells responded to leptin with cell growth and induction of the STAT3 and Akt pathways as well as inactivation of the cell cycle suppressor Rb. In summary, our data demonstrate that the leptin/ObR system is expressed in malignant brain tumors and might be involved in tumor progression.

Indexed as

Blotting, WesternBrainBrain NeoplasmsCell CountCell Line, TumorCell ProliferationFluorescent Antibody TechniqueGliomaHumansImmunohistochemistryKi-67 AntigenLeptinOncogene Protein v-aktReceptors, LeptinSignal TransductionSTAT3 Transcription FactorKi-67 AntigenLEPR protein, humanLeptinOncogene Protein v-aktReceptors, LeptinSTAT3 protein, humanSTAT3 Transcription Factor

Identifiers

PMID19775291
PMCPMC2864337
OpenAlexW2146973836

What OpenQuestion holds

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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.