Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer

Abstract Transurethral resection of bladder tumor (TUR-BT) and radical cystectomy (RC) are standard treatment options for bladder cancer (BC). Neoadjuvant chemotherapy (NAC) prior to RC improves outcome of some patients but currently there are no valid biomarkers to identify patients who benefit fro...

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Main Authors: Matias Blomqvist, Ilmari Koskinen, Eliisa Löyttyniemi, Tuomas Mirtti, Peter J. Boström, Pekka Taimen
Format: Article
Language:English
Published: Nature Portfolio 2021-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-93245-1
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author Matias Blomqvist
Ilmari Koskinen
Eliisa Löyttyniemi
Tuomas Mirtti
Peter J. Boström
Pekka Taimen
author_facet Matias Blomqvist
Ilmari Koskinen
Eliisa Löyttyniemi
Tuomas Mirtti
Peter J. Boström
Pekka Taimen
author_sort Matias Blomqvist
collection DOAJ
description Abstract Transurethral resection of bladder tumor (TUR-BT) and radical cystectomy (RC) are standard treatment options for bladder cancer (BC). Neoadjuvant chemotherapy (NAC) prior to RC improves outcome of some patients but currently there are no valid biomarkers to identify patients who benefit from NAC. Presence of cancer stem cells (CSC) has been associated with poor outcome and resistance to chemotherapy in various cancers. Here we studied the expression of stem cell markers ALDH1, SOX2 and SSEA-4 with immunohistochemistry in tissue microarray material consisting of 195 BC patients treated with RC and 74 patients treated with TUR-BT followed by NAC and RC. Post-operative follow-up data of up to 22 years was used. Negative to weak cytoplasmic SOX2 staining was associated with lymphovascular invasion and non-organ confined disease. It was also associated with shortened cancer-specific survival, but the finding was not statistically significant. Contrary to previous reports, none of the other tested biomarkers were associated with cancer-specific mortality or clinicopathological characteristics. Neither were they associated with response to NAC. Despite the promising results of previously published studies, our results suggest that CSC markers ALDH1, SOX2 and SSEA-4 have little if any prognostic or predictive value in BC treated with RC.
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spelling doaj.art-a983ad99b731480d86231b5faa38df2f2022-12-21T21:47:30ZengNature PortfolioScientific Reports2045-23222021-07-011111910.1038/s41598-021-93245-1Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancerMatias Blomqvist0Ilmari Koskinen1Eliisa Löyttyniemi2Tuomas Mirtti3Peter J. Boström4Pekka Taimen5Institute of Biomedicine and FICAN West Cancer Centre, University of TurkuDepartment of Urology, Helsinki University Hospital and University of HelsinkiDepartment of Biostatistics, University of TurkuDepartment of Pathology, University of Helsinki and Helsinki University HospitalDepartment of Urology and FICAN West Cancer Centre, University of Turku and Turku University HospitalInstitute of Biomedicine and FICAN West Cancer Centre, University of TurkuAbstract Transurethral resection of bladder tumor (TUR-BT) and radical cystectomy (RC) are standard treatment options for bladder cancer (BC). Neoadjuvant chemotherapy (NAC) prior to RC improves outcome of some patients but currently there are no valid biomarkers to identify patients who benefit from NAC. Presence of cancer stem cells (CSC) has been associated with poor outcome and resistance to chemotherapy in various cancers. Here we studied the expression of stem cell markers ALDH1, SOX2 and SSEA-4 with immunohistochemistry in tissue microarray material consisting of 195 BC patients treated with RC and 74 patients treated with TUR-BT followed by NAC and RC. Post-operative follow-up data of up to 22 years was used. Negative to weak cytoplasmic SOX2 staining was associated with lymphovascular invasion and non-organ confined disease. It was also associated with shortened cancer-specific survival, but the finding was not statistically significant. Contrary to previous reports, none of the other tested biomarkers were associated with cancer-specific mortality or clinicopathological characteristics. Neither were they associated with response to NAC. Despite the promising results of previously published studies, our results suggest that CSC markers ALDH1, SOX2 and SSEA-4 have little if any prognostic or predictive value in BC treated with RC.https://doi.org/10.1038/s41598-021-93245-1
spellingShingle Matias Blomqvist
Ilmari Koskinen
Eliisa Löyttyniemi
Tuomas Mirtti
Peter J. Boström
Pekka Taimen
Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
Scientific Reports
title Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
title_full Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
title_fullStr Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
title_full_unstemmed Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
title_short Prognostic and predictive value of ALDH1, SOX2 and SSEA-4 in bladder cancer
title_sort prognostic and predictive value of aldh1 sox2 and ssea 4 in bladder cancer
url https://doi.org/10.1038/s41598-021-93245-1
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