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Keywords = cryoasservation

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15 pages, 2190 KB  
Article
Ex Vivo Fluorescence Confocal Microscopy (FCM) Ensures Representative Tissue in Prostate Cancer Biobanking: A Feasibility Study
by Ulf Titze, Johannes Sommerkamp, Clara Stege, Fried Schneider, Christoph Brochhausen, Birte Schulz, Barbara Titze, Furat Abd Ali, Sasa Pokupic, Karl-Dietrich Sievert and Torsten Hansen
Int. J. Mol. Sci. 2022, 23(20), 12103; https://doi.org/10.3390/ijms232012103 - 11 Oct 2022
Cited by 11 | Viewed by 3210
Abstract
Background: Biobanking of prostate carcinoma is particularly challenging due to the actual cancer within the organ often without clear margins. Frozen sections are to date the only way to examine the biobank material for its tumor content. We used ex vivo fluorescence confocal [...] Read more.
Background: Biobanking of prostate carcinoma is particularly challenging due to the actual cancer within the organ often without clear margins. Frozen sections are to date the only way to examine the biobank material for its tumor content. We used ex vivo fluorescence confocal microscopy (FCM) to analyze biobank samples prior to cryoasservation. Methods: 127 punch biopsies were acquired from prostatectomy-specimens from 40 patients. These biopsies were analyzed with a Vivascope 2500-G4 prior to their transfer to the biobank. In difficult cases, larger samples of the prostatectomy specimens were FCM scanned in order to locate tumor foci. After patient acquisition, all samples were taken from the biobank and analyzed. We compared the results of the FCM examinations with the results of conventional histology and measured the DNA content. Results: With upstream FCM, the tumor content of biobank samples could be determined with high confidence. The detection rate of representative biobank samples was increased due to the rapid feedback. The biobank samples were suitable for further molecular analysis. Conclusion: FCM allows for the first time lossless microscopic analysis of biobank samples prior to their cryoasservation and guarantees representative tumor and normal tissue for further molecular analysis. Full article
(This article belongs to the Special Issue Urogenital Tumors: From Molecular Basis to Therapy)
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