Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology

Bladder cancer (BC) is the most common urinary malignancy; however accurate diagnosis and prediction of recurrence after therapies remain elusive. This study aimed to develop a biosignature of immunotherapy-based responses using gene expression data. Publicly available BC datasets were collected, an...

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Main Authors: Hyuna Cho, Feng Tong, Sungyong You, Sungyoung Jung, Won Hwa Kim, Jayoung Kim
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Open Journal of Engineering in Medicine and Biology
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Online Access:https://ieeexplore.ieee.org/document/9758656/
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author Hyuna Cho
Feng Tong
Sungyong You
Sungyoung Jung
Won Hwa Kim
Jayoung Kim
author_facet Hyuna Cho
Feng Tong
Sungyong You
Sungyoung Jung
Won Hwa Kim
Jayoung Kim
author_sort Hyuna Cho
collection DOAJ
description Bladder cancer (BC) is the most common urinary malignancy; however accurate diagnosis and prediction of recurrence after therapies remain elusive. This study aimed to develop a biosignature of immunotherapy-based responses using gene expression data. Publicly available BC datasets were collected, and machine learning (ML) approaches were applied to identify a novel biosignature to differentiate patient subgroups. Immune phenotyping of BC in the IMvigor210 dataset included three subtypes: inflamed, excluded, and desert immune. Immune phenotypes were analyzed with gene expressions using traditional but powerful classification methods such as random forests, Deep Neural Networks (DNN), Support Vector Machines (SVM) together with boosting and feature selection methods. Specifically, DNN yielded the highest area under the curve (AUC) with precision and recall (PR) curves and receiver operating characteristic (ROC) curves for each phenotype (<inline-formula><tex-math notation="LaTeX">$0.711 \pm 0.092$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$0.86 \pm 0.039$</tex-math></inline-formula>, respectively) resulting in the identification of gene expression features useful for immune phenotype classification. Our results suggest significant potential to further develop and utilize machine learning algorithms for analysis of BC and its precaution. In conclusion, the findings from this study present a novel gene expression assay that can accurately discriminate BC patients from controls. Upon further validation in independent cohorts, this gene signature could be developed into a predictive test that can support clinical evaluation and patient care.
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spelling doaj-art-858d39bc761746ad9acf1ecf21e14bb82025-07-02T00:07:04ZengIEEEIEEE Open Journal of Engineering in Medicine and Biology2644-12762022-01-013475710.1109/OJEMB.2022.31635339758656Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision OncologyHyuna Cho0Feng Tong1https://orcid.org/0000-0002-3693-5700Sungyong You2https://orcid.org/0000-0003-3513-1783Sungyoung Jung3https://orcid.org/0000-0002-0749-0394Won Hwa Kim4Jayoung Kim5https://orcid.org/0000-0002-3683-4627Graduate School of Artificial Intelligence (GSAI), Pohang University of Science and Technology, Pohang, South KoreaDepartment of Computer Science and Engineering, University of Texas at Arlington, Arlington, TX, USADepartment of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USADepartment of Electrical Engineering, University of Texas at Arlington, Arlington, TX, USAGraduate School of Artificial Intelligence (GSAI), Pohang University of Science and Technology, Pohang, South KoreaDepartment of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USABladder cancer (BC) is the most common urinary malignancy; however accurate diagnosis and prediction of recurrence after therapies remain elusive. This study aimed to develop a biosignature of immunotherapy-based responses using gene expression data. Publicly available BC datasets were collected, and machine learning (ML) approaches were applied to identify a novel biosignature to differentiate patient subgroups. Immune phenotyping of BC in the IMvigor210 dataset included three subtypes: inflamed, excluded, and desert immune. Immune phenotypes were analyzed with gene expressions using traditional but powerful classification methods such as random forests, Deep Neural Networks (DNN), Support Vector Machines (SVM) together with boosting and feature selection methods. Specifically, DNN yielded the highest area under the curve (AUC) with precision and recall (PR) curves and receiver operating characteristic (ROC) curves for each phenotype (<inline-formula><tex-math notation="LaTeX">$0.711 \pm 0.092$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$0.86 \pm 0.039$</tex-math></inline-formula>, respectively) resulting in the identification of gene expression features useful for immune phenotype classification. Our results suggest significant potential to further develop and utilize machine learning algorithms for analysis of BC and its precaution. In conclusion, the findings from this study present a novel gene expression assay that can accurately discriminate BC patients from controls. Upon further validation in independent cohorts, this gene signature could be developed into a predictive test that can support clinical evaluation and patient care.https://ieeexplore.ieee.org/document/9758656/Artificial algorithmbiomarkerbladder cancergene expressionimmunotherapymachine learning
spellingShingle Hyuna Cho
Feng Tong
Sungyong You
Sungyoung Jung
Won Hwa Kim
Jayoung Kim
Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
IEEE Open Journal of Engineering in Medicine and Biology
Artificial algorithm
biomarker
bladder cancer
gene expression
immunotherapy
machine learning
title Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
title_full Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
title_fullStr Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
title_full_unstemmed Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
title_short Prediction of the Immune Phenotypes of Bladder Cancer Patients for Precision Oncology
title_sort prediction of the immune phenotypes of bladder cancer patients for precision oncology
topic Artificial algorithm
biomarker
bladder cancer
gene expression
immunotherapy
machine learning
url https://ieeexplore.ieee.org/document/9758656/
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AT sungyongyou predictionoftheimmunephenotypesofbladdercancerpatientsforprecisiononcology
AT sungyoungjung predictionoftheimmunephenotypesofbladdercancerpatientsforprecisiononcology
AT wonhwakim predictionoftheimmunephenotypesofbladdercancerpatientsforprecisiononcology
AT jayoungkim predictionoftheimmunephenotypesofbladdercancerpatientsforprecisiononcology