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Erschienen in: Journal of Cancer Research and Clinical Oncology 5/2016

24.02.2016 | Original Article – Cancer Research

Transcripts of circulating tumor cells detected by a breast cancer-specific platform correlate with clinical stage in bladder cancer patients

verfasst von: Tilman Todenhöfer, Jörg Hennenlotter, Nathalie Dorner, Ursula Kühs, Stefan Aufderklamm, Steffen Rausch, Simone Bier, Johannes Mischinger, Doreen Schellbach, Siegfried Hauch, Natalie Feniuk, Jens Bedke, Georgios Gakis, Arnulf Stenzl, Christian Schwentner

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 5/2016

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Abstract

Purpose

There is increasing interest in circulating tumor cells (CTCs) as a biomarker in bladder cancer (BC). In the present pilot study, we used a platform originally developed for detection of breast cancer CTCs to assess breast cancer-associated transcripts in CTCs of patients with different stages of BC. Moreover, transcripts specific for cancer stem cells and epithelial mesenchymal transition (EMT) were assessed.

Methods

We prospectively enrolled 83 BC patients and 29 controls. The AdnaTest® system was used to enrich epithelial cells in peripheral blood and to detect breast cancer-associated, stem cell-specific or EMT-specific transcripts. Test results were correlated with clinical and pathological stage.

Results

A positive AdnaTest® BreastCancerDetect was present in 6.9 % of controls (group A), 6.7, 15.0 and 18.7 % of patients with non-muscle-invasive BC (B), cM0 muscle-invasive BC (C) and metastatic BC (D) (p = 0.13). Stem cell-specific transcripts in group A, B, C and D were detected in 10.3, 10.0, 22.5 and 31.3 % (p = 0.03). EMT-associated transcripts were present in 3.5, 3.3, 15.0 and 18.7 % (p = 0.03). In group C, epithelial and stem-like transcripts correlated with tumor stage (p = 0.01 and 0.04).

Conclusions

CTCs with expression of breast cancer-associated transcripts are present in a considerable proportion of patients with BC. EMT and stem cell-specific transcripts of CTCs correlate with clinical stage and can be detected in patients negative for epithelial transcripts. The prognostic relevance of AdnaTest® results in BC patients and potential implications for therapy decisions remain to be determined in prospective studies.
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Metadaten
Titel
Transcripts of circulating tumor cells detected by a breast cancer-specific platform correlate with clinical stage in bladder cancer patients
verfasst von
Tilman Todenhöfer
Jörg Hennenlotter
Nathalie Dorner
Ursula Kühs
Stefan Aufderklamm
Steffen Rausch
Simone Bier
Johannes Mischinger
Doreen Schellbach
Siegfried Hauch
Natalie Feniuk
Jens Bedke
Georgios Gakis
Arnulf Stenzl
Christian Schwentner
Publikationsdatum
24.02.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Journal of Cancer Research and Clinical Oncology / Ausgabe 5/2016
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-016-2129-0

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