Evidence map›Paper›PMID 33859946›Full record

ArticleFrontiers in oncology2021

PSMA Expression in Glioblastoma as a Basis for Theranostic Approaches: A Retrospective, Correlational Panel Study Including Immunohistochemistry, Clinical Parameters and PET Imaging.

Adrien Holzgreve, Annamaria Biczok, Viktoria C Ruf, Friederike Liesche-Starnecker, Katja Steiger, Maximilian A Kirchner, Marcus Unterrainer, Lena Mittlmeier, Jochen Herms, Jürgen Schlegel and 4 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 2 pooled it
7.5field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 2 syntheses or guidelines pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Review
  6. Diagnostic accuracy of [Neuroradiology · 2026
    Article
  7. Enhancing the efficacy of VEGF inhibitors by co-inhibition of HIF in the treatment of glioblastoma.Apoptosis : an international journal on programmed cell death · 2026
    Review
  8. PSMA expression in hepatic colorectal cancer metastasis.Journal of pathology and translational medicine · 2026
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. CXCR2 expression is associated with prostate-specific membrane antigen expression in hepatocellular carcinoma: reappraisal of tumor microenvironment and angiogenesis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Practical immunomodulatory landscape of glioblastoma multiforme (GBM) therapy.Journal of the Egyptian National Cancer Institute · 2024
    Review
  20. Radiosynthesis and preclinical evaluation of aEJNMMI radiopharmacy and chemistry · 2024
    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

14 authors at 3 institutions in 1 country.

Adrien HolzgreveDepartment of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
Annamaria BiczokDepartment of Neurosurgery, University Hospital, LMU Munich, Munich, Germany.
Viktoria C RufDepartment of Neuropathology, University of Munich (LMU), Munich, Germany.
Friederike Liesche-StarneckerInstitute of Pathology, TUM School of Medicine, Technical University of Munich, Munich, Germany.
Katja SteigerInstitute of Pathology, TUM School of Medicine, Technical University of Munich, Munich, Germany.
Maximilian A KirchnerDepartment of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
Marcus UnterrainerDepartment of Radiology, University Hospital, LMU Munich, Munich, Germany.
Lena MittlmeierDepartment of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
Jochen HermsDepartment of Neuropathology, University of Munich (LMU), Munich, Germany.
Jürgen SchlegelInstitute of Pathology, TUM School of Medicine, Technical University of Munich, Munich, Germany.
Peter BartensteinDepartment of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
Jörg-Christian TonnDepartment of Neurosurgery, University Hospital, LMU Munich, Munich, Germany.
Nathalie L AlbertDepartment of Nuclear Medicine, University Hospital, LMU Munich, Munich, Germany.
Bogdana SuchorskaDepartment of Neurosurgery, University Hospital, LMU Munich, Munich, Germany.
LMU Klinikum · DELudwig-Maximilians-Universität München · DETechnical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe aim of the current study was to enlighten the evolution of prostate-specific membrane antigen (PSMA) expression in glioblastoma between initial diagnosis and recurrence in order to provide preliminary insight for further clinical investigations into innovative PSMA-directed treatment concepts in neuro-oncology.

methodsPatients who underwent resection for de-novo glioblastoma (GBM) and had a re-resection in case of a recurrent tumor following radiochemotherapy and subsequent chemotherapy were included (n = 16). Histological and immunohistochemical stainings were performed at initial diagnosis and at recurrence (n = 96 tissue specimens). Levels of PSMA expression both in endothelial and non-endothelial cells as well as vascular density (CD34) were quantified

resultsPSMA expression was found to be present in all GBM tissue samples at initial diagnosis as well as in all but one case of recurrent tumor samples. The level of PSMA expression in glioblastoma varied inter-individually both in endothelial and non-endothelial cells. Likewise, the temporal evolution of PSMA expression highly varied in between patients. The level of vascular PSMA expression at recurrence and its change between initial diagnosis and recurrence was associated with post recurrence survival time: Patients with high vascular PSMA expression at recurrence as well as patients with increasing PSMA expression throughout the disease course survived shorter than patients with low vascular PSMA expression or decreasing vascular PSMA expression. There was no significant correlation of PSMA expression with MGMT promoter methylation status or Ki-67 labelling index.

conclusionPSMA is expressed in glioblastoma both at initial diagnosis and at recurrence. High vascular PSMA expression at recurrence seems to be a negative prognostic marker. Thus, PSMA expression in GBM might present a promising target for theranostic approaches in recurrent glioblastoma. Especially PSMA PET imaging and PSMA-directed radioligand therapy warrant further studies in brain tumor patients.

Indexed as

glioblastoma (GBM)gliomaimmunohistochemistry (IHC)positron emission tomography (PET)prognosisprostate specific membrane antigen (PSMA)radionuclide therapy (PSMA-RLT)theranostic

Identifiers

PMID33859946
PMCPMC8042319
OpenAlexW3140882615

What OpenQuestion holds

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LicenceCC BY
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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.