Predictive value of molecular subtyping in NMIBC by RT-qPCR of ERBB2, ESR1, PGR and MKI67 from formalin fixed TUR biopsies
Breyer J, Wirtz RM, Otto W, Laible M, Schlombs K, Erben P, Kriegmair MC, Stoehr R, Eidt S, Denzinger S, Burger M, Hartmann A (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 8
Pages Range: 67684-67695
Journal Issue: 40
DOI: 10.18632/oncotarget.18804
Abstract
Expression of ESR1, PGR, HER2 and Ki67 is important for risk stratification and therapy in breast cancer. Hormone receptor expression can also be found in MIBC, reflecting luminal and basal subtypes of breast cancer. Thus the purpose was to investigate on the mRNA expression of the aforementioned markers and their prognostic value in pT1 bladder cancer. Retrospective analysis of clinical data and Formalin-Fixed Paraffin-Embedded tissues (FFPE) of patients with stage pT1 NMIBC who underwent transurethral resection of the bladder was performed. mRNA expression was measured by single step RT-qPCR. Relative gene expression was determined by normalization to two housekeeping genes (CALM2, B2M) using the 40-??CT method. Correlation of mRNA expression with outcome was assessed using Kaplan-Meier analysis and multivariate Cox regression analysis. From overall 302 patients, 255 samples could be analyzed with valid measurements. Subtype distribution was Luminal-A in 11.4%, Luminal-B in 38.8%, triple negative in 36.9% and ERBB2 in 12.9%, respectively. Kaplan-Meier analysis revealed molecular subtyping being statistical significant for RFS (p=0.0408) and PFS (p=0.0039). Luminal-A patients did have the best RFS and PFS. Multivariate analysis revealed molecular subtyping to be significant for PFS (L-R Chi(2) of 11.89, p=0.0078). Elevated expression of HER2 was statistically significant for PFS (p=0.0025) and discriminated among G3 tumors a high risk group (60% PFS) from a low risk risk group (90% PFS) after 5 year follow-up (p<0.001). Expression of ESR1, PGR and HER2 has predictive value in stage pT1 NMIBC and reveals potential therapeutic targets.
Authors with CRIS profile
Involved external institutions
Universität Regensburg
Germany (DE)
St. Elisabeth-Krankenhaus Köln-Hohenlind
Germany (DE)
Ruprecht-Karls-Universität Heidelberg
Germany (DE)
BioNTech / Biopharmaceutical New Technologies
Germany (DE)
STRATIFYER Molecular Pathology GmbH
Germany (DE)
Germany (DE)
St. Elisabeth-Krankenhaus Köln-Hohenlind
Germany (DE)
Ruprecht-Karls-Universität Heidelberg
Germany (DE)
BioNTech / Biopharmaceutical New Technologies
Germany (DE)
STRATIFYER Molecular Pathology GmbH
Germany (DE)
How to cite
APA:
Breyer, J., Wirtz, R.M., Otto, W., Laible, M., Schlombs, K., Erben, P.,... Hartmann, A. (2017). Predictive value of molecular subtyping in NMIBC by RT-qPCR of ERBB2, ESR1, PGR and MKI67 from formalin fixed TUR biopsies. Oncotarget, 8(40), 67684-67695. https://dx.doi.org/10.18632/oncotarget.18804
MLA:
Breyer, Johannes, et al. "Predictive value of molecular subtyping in NMIBC by RT-qPCR of ERBB2, ESR1, PGR and MKI67 from formalin fixed TUR biopsies." Oncotarget 8.40 (2017): 67684-67695.
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