Assessing the invasive potential of bladder cancer
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Assessing the invasive potential of bladder cancer : development and validation of a new preclinical assay. / Bolenz, Christian; Gorzelanny, Christian; Knauf, Daniel; Keil, Tanja; Steidler, Annette; Halter, Natalia; Martini, Thomas; Schneider, Stefan W.
in: J UROLOGY, Jahrgang 189, Nr. 5, 05.2013, S. 1939-44.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Assessing the invasive potential of bladder cancer
T2 - development and validation of a new preclinical assay
AU - Bolenz, Christian
AU - Gorzelanny, Christian
AU - Knauf, Daniel
AU - Keil, Tanja
AU - Steidler, Annette
AU - Halter, Natalia
AU - Martini, Thomas
AU - Schneider, Stefan W
N1 - Copyright © 2013 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.
PY - 2013/5
Y1 - 2013/5
N2 - PURPOSE: We developed and validated an electrophysiological method for standardized preclinical assessment of the invasive potential of urothelial carcinoma of the bladder.MATERIALS AND METHODS: Human UMUC-3, RT-112, HT-1197 and T24/83 bladder urothelial carcinoma cells, and UROtsa benign urothelial cells were co-cultivated with high resistance MDCK-C7 cells seeded below a 0.4 μm pore membrane of an insert to avoid physical contact and cellular migration. Transepithelial electrical resistance in Ω cm(2) across the MDCK-C7 monolayer was measured longitudinally. Invasive potential coefficients were calculated based on the secretion of proteolytic factors by invading cells.RESULTS: Consistent transepithelial electrical resistance breakdown patterns were reproduced in 14 or more independent samples of each cell line. Coefficients of invasive potential were significantly higher in bladder urothelial carcinoma than UROtsa cells, including a mean ± SD of 1.5 ± 0.32 vs 9.9 ± 4.97 in UMUC-3, 12.5 ± 6.61 in T24/83, 20.5 ± 4.24 in RT-112 and 21.0 ± 5.15 in HT-1197 cells (p <0.001). No correlation was found between the secretion patterns of matrix metalloproteinase-1, 2 and 9, and invasive potential. Stimulation of UROtsa cells with recombinant human epidermal growth factor up-regulated matrix metalloproteinase-9 secretion and significantly increased invasive potential a mean of 1.3 ± 0.22 vs 14.6 ± 3.28 after stimulation with 10 ng/ml epidermal growth factor (p <0.001).CONCLUSIONS: We developed a highly sensitive translational tool to study the initial process of metastatic spread of urothelial carcinoma of the bladder. The presented electrophysiological invasion assay enables reliable quantification of the invasive potential of bladder urothelial carcinoma cells before physical transmigration. It can be used to identify key molecules for bladder urothelial carcinoma invasion and develop new therapeutic strategies.
AB - PURPOSE: We developed and validated an electrophysiological method for standardized preclinical assessment of the invasive potential of urothelial carcinoma of the bladder.MATERIALS AND METHODS: Human UMUC-3, RT-112, HT-1197 and T24/83 bladder urothelial carcinoma cells, and UROtsa benign urothelial cells were co-cultivated with high resistance MDCK-C7 cells seeded below a 0.4 μm pore membrane of an insert to avoid physical contact and cellular migration. Transepithelial electrical resistance in Ω cm(2) across the MDCK-C7 monolayer was measured longitudinally. Invasive potential coefficients were calculated based on the secretion of proteolytic factors by invading cells.RESULTS: Consistent transepithelial electrical resistance breakdown patterns were reproduced in 14 or more independent samples of each cell line. Coefficients of invasive potential were significantly higher in bladder urothelial carcinoma than UROtsa cells, including a mean ± SD of 1.5 ± 0.32 vs 9.9 ± 4.97 in UMUC-3, 12.5 ± 6.61 in T24/83, 20.5 ± 4.24 in RT-112 and 21.0 ± 5.15 in HT-1197 cells (p <0.001). No correlation was found between the secretion patterns of matrix metalloproteinase-1, 2 and 9, and invasive potential. Stimulation of UROtsa cells with recombinant human epidermal growth factor up-regulated matrix metalloproteinase-9 secretion and significantly increased invasive potential a mean of 1.3 ± 0.22 vs 14.6 ± 3.28 after stimulation with 10 ng/ml epidermal growth factor (p <0.001).CONCLUSIONS: We developed a highly sensitive translational tool to study the initial process of metastatic spread of urothelial carcinoma of the bladder. The presented electrophysiological invasion assay enables reliable quantification of the invasive potential of bladder urothelial carcinoma cells before physical transmigration. It can be used to identify key molecules for bladder urothelial carcinoma invasion and develop new therapeutic strategies.
KW - Biological Assay
KW - Carcinoma, Transitional Cell
KW - Electric Impedance
KW - Humans
KW - Neoplasm Invasiveness
KW - Tumor Cells, Cultured
KW - Urinary Bladder Neoplasms
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
KW - Validation Studies
U2 - 10.1016/j.juro.2012.10.007
DO - 10.1016/j.juro.2012.10.007
M3 - SCORING: Journal article
C2 - 23063805
VL - 189
SP - 1939
EP - 1944
JO - J UROLOGY
JF - J UROLOGY
SN - 0022-5347
IS - 5
ER -
