author_facet Kassuhn, Wanja
Klein, Oliver
Darb-Esfahani, Silvia
Lammert, Hedwig
Handzik, Sylwia
Taube, Eliane T.
Schmitt, Wolfgang D.
Keunecke, Carlotta
Horst, David
Dreher, Felix
George, Joshy
Bowtell, David D.
Dorigo, Oliver
Hummel, Michael
Sehouli, Jalid
Blüthgen, Nils
Kulbe, Hagen
Braicu, Elena I.
Kassuhn, Wanja
Klein, Oliver
Darb-Esfahani, Silvia
Lammert, Hedwig
Handzik, Sylwia
Taube, Eliane T.
Schmitt, Wolfgang D.
Keunecke, Carlotta
Horst, David
Dreher, Felix
George, Joshy
Bowtell, David D.
Dorigo, Oliver
Hummel, Michael
Sehouli, Jalid
Blüthgen, Nils
Kulbe, Hagen
Braicu, Elena I.
author Kassuhn, Wanja
Klein, Oliver
Darb-Esfahani, Silvia
Lammert, Hedwig
Handzik, Sylwia
Taube, Eliane T.
Schmitt, Wolfgang D.
Keunecke, Carlotta
Horst, David
Dreher, Felix
George, Joshy
Bowtell, David D.
Dorigo, Oliver
Hummel, Michael
Sehouli, Jalid
Blüthgen, Nils
Kulbe, Hagen
Braicu, Elena I.
spellingShingle Kassuhn, Wanja
Klein, Oliver
Darb-Esfahani, Silvia
Lammert, Hedwig
Handzik, Sylwia
Taube, Eliane T.
Schmitt, Wolfgang D.
Keunecke, Carlotta
Horst, David
Dreher, Felix
George, Joshy
Bowtell, David D.
Dorigo, Oliver
Hummel, Michael
Sehouli, Jalid
Blüthgen, Nils
Kulbe, Hagen
Braicu, Elena I.
Cancers
Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
Cancer Research
Oncology
author_sort kassuhn, wanja
spelling Kassuhn, Wanja Klein, Oliver Darb-Esfahani, Silvia Lammert, Hedwig Handzik, Sylwia Taube, Eliane T. Schmitt, Wolfgang D. Keunecke, Carlotta Horst, David Dreher, Felix George, Joshy Bowtell, David D. Dorigo, Oliver Hummel, Michael Sehouli, Jalid Blüthgen, Nils Kulbe, Hagen Braicu, Elena I. 2072-6694 MDPI AG Cancer Research Oncology http://dx.doi.org/10.3390/cancers13071512 <jats:p>Despite the correlation of clinical outcome and molecular subtypes of high-grade serous ovarian cancer (HGSOC), contemporary gene expression signatures have not been implemented in clinical practice to stratify patients for targeted therapy. Hence, we aimed to examine the potential of unsupervised matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) to stratify patients who might benefit from targeted therapeutic strategies. Molecular subtyping of paraffin-embedded tissue samples from 279 HGSOC patients was performed by NanoString analysis (ground truth labeling). Next, we applied MALDI-IMS paired with machine-learning algorithms to identify distinct mass profiles on the same paraffin-embedded tissue sections and distinguish HGSOC subtypes by proteomic signature. Finally, we devised a novel approach to annotate spectra of stromal origin. We elucidated a MALDI-derived proteomic signature (135 peptides) able to classify HGSOC subtypes. Random forest classifiers achieved an area under the curve (AUC) of 0.983. Furthermore, we demonstrated that the exclusion of stroma-associated spectra provides tangible improvements to classification quality (AUC = 0.988). Moreover, novel MALDI-based stroma annotation achieved near-perfect classifications (AUC = 0.999). Here, we present a concept integrating MALDI-IMS with machine-learning algorithms to classify patients according to distinct molecular subtypes of HGSOC. This has great potential to assign patients for personalized treatment.</jats:p> Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging Cancers
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series Cancers
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title Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_unstemmed Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_full Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_fullStr Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_full_unstemmed Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_short Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_sort classification of molecular subtypes of high-grade serous ovarian cancer by maldi-imaging
topic Cancer Research
Oncology
url http://dx.doi.org/10.3390/cancers13071512
publishDate 2021
physical 1512
description <jats:p>Despite the correlation of clinical outcome and molecular subtypes of high-grade serous ovarian cancer (HGSOC), contemporary gene expression signatures have not been implemented in clinical practice to stratify patients for targeted therapy. Hence, we aimed to examine the potential of unsupervised matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) to stratify patients who might benefit from targeted therapeutic strategies. Molecular subtyping of paraffin-embedded tissue samples from 279 HGSOC patients was performed by NanoString analysis (ground truth labeling). Next, we applied MALDI-IMS paired with machine-learning algorithms to identify distinct mass profiles on the same paraffin-embedded tissue sections and distinguish HGSOC subtypes by proteomic signature. Finally, we devised a novel approach to annotate spectra of stromal origin. We elucidated a MALDI-derived proteomic signature (135 peptides) able to classify HGSOC subtypes. Random forest classifiers achieved an area under the curve (AUC) of 0.983. Furthermore, we demonstrated that the exclusion of stroma-associated spectra provides tangible improvements to classification quality (AUC = 0.988). Moreover, novel MALDI-based stroma annotation achieved near-perfect classifications (AUC = 0.999). Here, we present a concept integrating MALDI-IMS with machine-learning algorithms to classify patients according to distinct molecular subtypes of HGSOC. This has great potential to assign patients for personalized treatment.</jats:p>
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author Kassuhn, Wanja, Klein, Oliver, Darb-Esfahani, Silvia, Lammert, Hedwig, Handzik, Sylwia, Taube, Eliane T., Schmitt, Wolfgang D., Keunecke, Carlotta, Horst, David, Dreher, Felix, George, Joshy, Bowtell, David D., Dorigo, Oliver, Hummel, Michael, Sehouli, Jalid, Blüthgen, Nils, Kulbe, Hagen, Braicu, Elena I.
author_facet Kassuhn, Wanja, Klein, Oliver, Darb-Esfahani, Silvia, Lammert, Hedwig, Handzik, Sylwia, Taube, Eliane T., Schmitt, Wolfgang D., Keunecke, Carlotta, Horst, David, Dreher, Felix, George, Joshy, Bowtell, David D., Dorigo, Oliver, Hummel, Michael, Sehouli, Jalid, Blüthgen, Nils, Kulbe, Hagen, Braicu, Elena I., Kassuhn, Wanja, Klein, Oliver, Darb-Esfahani, Silvia, Lammert, Hedwig, Handzik, Sylwia, Taube, Eliane T., Schmitt, Wolfgang D., Keunecke, Carlotta, Horst, David, Dreher, Felix, George, Joshy, Bowtell, David D., Dorigo, Oliver, Hummel, Michael, Sehouli, Jalid, Blüthgen, Nils, Kulbe, Hagen, Braicu, Elena I.
author_sort kassuhn, wanja
container_issue 7
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container_volume 13
description <jats:p>Despite the correlation of clinical outcome and molecular subtypes of high-grade serous ovarian cancer (HGSOC), contemporary gene expression signatures have not been implemented in clinical practice to stratify patients for targeted therapy. Hence, we aimed to examine the potential of unsupervised matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) to stratify patients who might benefit from targeted therapeutic strategies. Molecular subtyping of paraffin-embedded tissue samples from 279 HGSOC patients was performed by NanoString analysis (ground truth labeling). Next, we applied MALDI-IMS paired with machine-learning algorithms to identify distinct mass profiles on the same paraffin-embedded tissue sections and distinguish HGSOC subtypes by proteomic signature. Finally, we devised a novel approach to annotate spectra of stromal origin. We elucidated a MALDI-derived proteomic signature (135 peptides) able to classify HGSOC subtypes. Random forest classifiers achieved an area under the curve (AUC) of 0.983. Furthermore, we demonstrated that the exclusion of stroma-associated spectra provides tangible improvements to classification quality (AUC = 0.988). Moreover, novel MALDI-based stroma annotation achieved near-perfect classifications (AUC = 0.999). Here, we present a concept integrating MALDI-IMS with machine-learning algorithms to classify patients according to distinct molecular subtypes of HGSOC. This has great potential to assign patients for personalized treatment.</jats:p>
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spelling Kassuhn, Wanja Klein, Oliver Darb-Esfahani, Silvia Lammert, Hedwig Handzik, Sylwia Taube, Eliane T. Schmitt, Wolfgang D. Keunecke, Carlotta Horst, David Dreher, Felix George, Joshy Bowtell, David D. Dorigo, Oliver Hummel, Michael Sehouli, Jalid Blüthgen, Nils Kulbe, Hagen Braicu, Elena I. 2072-6694 MDPI AG Cancer Research Oncology http://dx.doi.org/10.3390/cancers13071512 <jats:p>Despite the correlation of clinical outcome and molecular subtypes of high-grade serous ovarian cancer (HGSOC), contemporary gene expression signatures have not been implemented in clinical practice to stratify patients for targeted therapy. Hence, we aimed to examine the potential of unsupervised matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) to stratify patients who might benefit from targeted therapeutic strategies. Molecular subtyping of paraffin-embedded tissue samples from 279 HGSOC patients was performed by NanoString analysis (ground truth labeling). Next, we applied MALDI-IMS paired with machine-learning algorithms to identify distinct mass profiles on the same paraffin-embedded tissue sections and distinguish HGSOC subtypes by proteomic signature. Finally, we devised a novel approach to annotate spectra of stromal origin. We elucidated a MALDI-derived proteomic signature (135 peptides) able to classify HGSOC subtypes. Random forest classifiers achieved an area under the curve (AUC) of 0.983. Furthermore, we demonstrated that the exclusion of stroma-associated spectra provides tangible improvements to classification quality (AUC = 0.988). Moreover, novel MALDI-based stroma annotation achieved near-perfect classifications (AUC = 0.999). Here, we present a concept integrating MALDI-IMS with machine-learning algorithms to classify patients according to distinct molecular subtypes of HGSOC. This has great potential to assign patients for personalized treatment.</jats:p> Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging Cancers
spellingShingle Kassuhn, Wanja, Klein, Oliver, Darb-Esfahani, Silvia, Lammert, Hedwig, Handzik, Sylwia, Taube, Eliane T., Schmitt, Wolfgang D., Keunecke, Carlotta, Horst, David, Dreher, Felix, George, Joshy, Bowtell, David D., Dorigo, Oliver, Hummel, Michael, Sehouli, Jalid, Blüthgen, Nils, Kulbe, Hagen, Braicu, Elena I., Cancers, Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging, Cancer Research, Oncology
title Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_full Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_fullStr Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_full_unstemmed Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_short Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
title_sort classification of molecular subtypes of high-grade serous ovarian cancer by maldi-imaging
title_unstemmed Classification of Molecular Subtypes of High-Grade Serous Ovarian Cancer by MALDI-Imaging
topic Cancer Research, Oncology
url http://dx.doi.org/10.3390/cancers13071512