MALDI imaging-based identification of prognostically relevant signals in bladder cancer using large-scale tissue microarrays

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MALDI imaging-based identification of prognostically relevant signals in bladder cancer using large-scale tissue microarrays. / Steurer, Stefan; Singer, Julius Magnus; Rink, Michael; Chun, Felix; Dahlem, Roland; Simon, Ronald; Burandt, Eike; Stahl, Phillip; Terracciano, Luigi; Schlomm, Thorsten; Wagner, Walter; Höppner, Wolfgang; Omidi, Maryam; Kraus, Olga; Kwiatkowski, Marcel; Doh, Ousman; Fisch, Margit; Soave, Armin; Sauter, Guido; Wurlitzer, Marcus; Schlüter, Hartmut; Minner, Sarah.

in: UROL ONCOL-SEMIN ORI, Jahrgang 32, Nr. 8, 01.11.2014, S. 1225-33.

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@article{4a9ba1f6cd5e4a0ebb2d3a3d76f21cfd,
title = "MALDI imaging-based identification of prognostically relevant signals in bladder cancer using large-scale tissue microarrays",
abstract = "OBJECTIVE: Although most patients with urinary bladder cancer present with noninvasive and low-malignant stages of the disease, about 20% eventually develop life-threatening metastatic tumors. This study was designed to evaluate the potential of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) to identify molecular markers predicting the clinical course of bladder cancer.MATERIALS AND METHODS: We employed MALDI-MSI to a bladder cancer tissue microarray including paraffin-embedded tissue samples from 697 patients with clinical follow-up data to search for prognostically relevant associations.RESULTS: Analysis of our MALDI imaging data revealed 40 signals in the mass spectra (m/z signals) associated with epithelial structures. The presence of numerous m/z signals was statistically related to one or several phenotypical findings including tumor aggressiveness (stage, grade, or nodal status; 30 signals), solid (5 signals) or papillary (3 signals) growth patterns, and increased (6 signals) or decreased (12 signals) cell proliferation, as determined by Ki-67 immunohistochemistry. Two signals were linked with tumor recurrence in noninvasive (pTa category) tumors, of which one was also related to progression from pTa-category to pT1-category disease. The absence of one m/z signal was linked with decreased survival in the subset of 102 muscle-invasive cancers.CONCLUSION: Our data demonstrate the suitability of combining MSI and large-scale tissue microarrays to simultaneously identify and validate clinically useful molecular markers in urinary bladder cancer.",
author = "Stefan Steurer and Singer, {Julius Magnus} and Michael Rink and Felix Chun and Roland Dahlem and Ronald Simon and Eike Burandt and Phillip Stahl and Luigi Terracciano and Thorsten Schlomm and Walter Wagner and Wolfgang H{\"o}ppner and Maryam Omidi and Olga Kraus and Marcel Kwiatkowski and Ousman Doh and Margit Fisch and Armin Soave and Guido Sauter and Marcus Wurlitzer and Hartmut Schl{\"u}ter and Sarah Minner",
note = "Copyright {\textcopyright} 2014 Elsevier Inc. All rights reserved.",
year = "2014",
month = nov,
day = "1",
doi = "10.1016/j.urolonc.2014.06.007",
language = "English",
volume = "32",
pages = "1225--33",
journal = "UROL ONCOL-SEMIN ORI",
issn = "1078-1439",
publisher = "Elsevier Inc.",
number = "8",

}

RIS

TY - JOUR

T1 - MALDI imaging-based identification of prognostically relevant signals in bladder cancer using large-scale tissue microarrays

AU - Steurer, Stefan

AU - Singer, Julius Magnus

AU - Rink, Michael

AU - Chun, Felix

AU - Dahlem, Roland

AU - Simon, Ronald

AU - Burandt, Eike

AU - Stahl, Phillip

AU - Terracciano, Luigi

AU - Schlomm, Thorsten

AU - Wagner, Walter

AU - Höppner, Wolfgang

AU - Omidi, Maryam

AU - Kraus, Olga

AU - Kwiatkowski, Marcel

AU - Doh, Ousman

AU - Fisch, Margit

AU - Soave, Armin

AU - Sauter, Guido

AU - Wurlitzer, Marcus

AU - Schlüter, Hartmut

AU - Minner, Sarah

N1 - Copyright © 2014 Elsevier Inc. All rights reserved.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - OBJECTIVE: Although most patients with urinary bladder cancer present with noninvasive and low-malignant stages of the disease, about 20% eventually develop life-threatening metastatic tumors. This study was designed to evaluate the potential of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) to identify molecular markers predicting the clinical course of bladder cancer.MATERIALS AND METHODS: We employed MALDI-MSI to a bladder cancer tissue microarray including paraffin-embedded tissue samples from 697 patients with clinical follow-up data to search for prognostically relevant associations.RESULTS: Analysis of our MALDI imaging data revealed 40 signals in the mass spectra (m/z signals) associated with epithelial structures. The presence of numerous m/z signals was statistically related to one or several phenotypical findings including tumor aggressiveness (stage, grade, or nodal status; 30 signals), solid (5 signals) or papillary (3 signals) growth patterns, and increased (6 signals) or decreased (12 signals) cell proliferation, as determined by Ki-67 immunohistochemistry. Two signals were linked with tumor recurrence in noninvasive (pTa category) tumors, of which one was also related to progression from pTa-category to pT1-category disease. The absence of one m/z signal was linked with decreased survival in the subset of 102 muscle-invasive cancers.CONCLUSION: Our data demonstrate the suitability of combining MSI and large-scale tissue microarrays to simultaneously identify and validate clinically useful molecular markers in urinary bladder cancer.

AB - OBJECTIVE: Although most patients with urinary bladder cancer present with noninvasive and low-malignant stages of the disease, about 20% eventually develop life-threatening metastatic tumors. This study was designed to evaluate the potential of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) to identify molecular markers predicting the clinical course of bladder cancer.MATERIALS AND METHODS: We employed MALDI-MSI to a bladder cancer tissue microarray including paraffin-embedded tissue samples from 697 patients with clinical follow-up data to search for prognostically relevant associations.RESULTS: Analysis of our MALDI imaging data revealed 40 signals in the mass spectra (m/z signals) associated with epithelial structures. The presence of numerous m/z signals was statistically related to one or several phenotypical findings including tumor aggressiveness (stage, grade, or nodal status; 30 signals), solid (5 signals) or papillary (3 signals) growth patterns, and increased (6 signals) or decreased (12 signals) cell proliferation, as determined by Ki-67 immunohistochemistry. Two signals were linked with tumor recurrence in noninvasive (pTa category) tumors, of which one was also related to progression from pTa-category to pT1-category disease. The absence of one m/z signal was linked with decreased survival in the subset of 102 muscle-invasive cancers.CONCLUSION: Our data demonstrate the suitability of combining MSI and large-scale tissue microarrays to simultaneously identify and validate clinically useful molecular markers in urinary bladder cancer.

U2 - 10.1016/j.urolonc.2014.06.007

DO - 10.1016/j.urolonc.2014.06.007

M3 - SCORING: Journal article

C2 - 25131659

VL - 32

SP - 1225

EP - 1233

JO - UROL ONCOL-SEMIN ORI

JF - UROL ONCOL-SEMIN ORI

SN - 1078-1439

IS - 8

ER -