Evidence map›Paper›PMID 27145459›Full record

ArticleOncotarget2016

Heterogeneous PSMA expression on circulating tumor cells: a potential basis for stratification and monitoring of PSMA-directed therapies in prostate cancer.

Tobias M Gorges, Sabine Riethdorf, Oliver von Ahsen, Paulina Nastał Y, Katharina Röck, Marcel Boede, Sven Peine, Andra Kuske, Elke Schmid, Christoph Kneip and 3 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
7.7field-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

52 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. [PSMA radioligand therapy-State of the art].Urologie (Heidelberg, Germany) · 2025
    Review
  5. Organ and tumour dosimetry ofEuropean journal of nuclear medicine and molecular imaging · 2025
    Article
  6. Review
  7. Review
  8. Synthesis of DOTA-BasedMethods and protocols · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Development of [Journal of medicinal chemistry · 2025
    Article
  13. JHU-2545 preferentially shields salivary glands and kidneys during PSMA-targeted imaging.European journal of nuclear medicine and molecular imaging · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Clinical application of circulating tumor cells.Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2023
    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

13 authors at 4 institutions in 1 country.

Tobias M GorgesDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Sabine RiethdorfDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Oliver von AhsenBPH-DD-TRG-CIPL-Biomarker Research, Bayer Pharma AG, Berlin, Germany.
Paulina Nastał YDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Katharina RöckDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Marcel BoedeATURO, Urology Practice, Berlin, Germany.
Sven PeineDepartment of Transfusion Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Andra KuskeDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Elke SchmidBPH-DD-TRG-CIPL-Biomarker Research, Bayer Pharma AG, Berlin, Germany.
Christoph KneipBPH-DD-TRG-CIPL-Biomarker Research, Bayer Pharma AG, Berlin, Germany.
Frank KönigATURO, Urology Practice, Berlin, Germany.
Marion RudolphBPH-DD-TRG-CIPL-Biomarker Research, Bayer Pharma AG, Berlin, Germany.
Klaus PantelDepartment of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Bayer (Germany) · DEUniversity Medical Center Hamburg-Eppendorf · DEUniversität Hamburg · DEAturo · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The prostate specific membrane antigen (PSMA) is the only clinically validated marker for therapeutic decisions in prostate cancer (PC). Characterization of circulating tumor cells (CTCs) obtained from the peripheral blood of PC patients might provide an alternative to tissue biopsies called "liquid biopsy". The aim of this study was to develop a reliable assay for the determination of PSMA on CTCs. PSMA expression was analyzed on tissue samples (cohort one, n = 75) and CTCs from metastatic PC patients (cohort two, n = 29). Specific signals for the expression of PSMA could be seen for different prostate cancer cell line cells (PC3, LaPC4, 22Rv1, and LNCaP) by Western blot, immunohistochemistry (IHC), immunocytochemistry (ICC), and FACS. PSMA expression was found to be significantly increased in patients with higher Gleason grade (p = 0.0011) and metastases in lymph nodes (p = 0.0000085) or bone (p = 0.0020) (cohort one). In cohort two, CTCs were detectable in 20 out of 29 samples (69 %, range from 1 - 1000 cells). Twelve out of 20 CTC-positive patients showed PSMA-positive CTCs (67 %, score 1+ to 3+). We found intra-patient heterogeneity regarding the PSMA status between CTCs and the corresponding primary tumors. The results of our study could help to address the question whether treatment decisions based on CTC PSMA profiling will lead to a measurable benefit in clinical outcome for prostate cancer patients in the near future.

Indexed as

Neoplastic Cells, CirculatingAgedAged, 80 and overBiomarkers, TumorFlow CytometryFluorescent Antibody TechniqueHumansMaleMiddle AgedProstate-Specific AntigenProstatic NeoplasmsBiomarkers, TumorProstate-Specific AntigenCellSearch®circulating tumor cellsprostate cancerPSMA

Identifiers

PMID27145459
PMCPMC5085200
OpenAlexW2345023278

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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.