IRnet: Immunotherapy response prediction using pathway knowledge-informed graph neural network,Journal of Advanced Research

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IRnet: Immunotherapy response prediction using pathway knowledge-informed graph neural network
Journal of Advanced Research ( IF 11.4 ) Pub Date : 2024-08-07 , DOI: 10.1016/j.jare.2024.07.036
Yuexu Jiang ₁ , Manish Sridhar Immadi ₂ , Duolin Wang ₁ , Shuai Zeng ₁ , Yen On Chan ₃ , Jing Zhou ₄ , Dong Xu ₅ , Trupti Joshi ₆

Affiliation

Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, USA; Christopher S. Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO, USA.
Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, USA.
Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, USA; MU Institute for Data Science and Informatics, University of Missouri-Columbia, Columbia, MO, USA.
Department of Surgery, University of Missouri-Columbia, Columbia, MO, USA.
Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, USA; Christopher S. Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO, USA; MU Institute for Data Science and Informatics, University of Missouri-Columbia, Columbia, MO, USA.
Department of Electrical Engineering and Computer Science, University of Missouri-Columbia, Columbia, MO, USA; Christopher S. Bond Life Sciences Center, University of Missouri-Columbia, Columbia, MO, USA; MU Institute for Data Science and Informatics, University of Missouri-Columbia, Columbia, MO, USA; Department of Biomedical Informatics, Biostatistics and Medical Epidemiology, University of Missouri-Columbia, Columbia, MO, USA.

Introduction

Immune checkpoint inhibitors (ICIs) are potent and precise therapies for various cancer types, significantly improving survival rates in patients who respond positively to them. However, only a minority of patients benefit from ICI treatments.

Objectives

Identifying ICI responders before treatment could greatly conserve medical resources, minimize potential drug side effects, and expedite the search for alternative therapies. Our goal is to introduce a novel deep-learning method to predict ICI treatment responses in cancer patients.

Methods

The proposed deep-learning framework leverages graph neural network and biological pathway knowledge. We trained and tested our method using ICI-treated patients’ data from several clinical trials covering melanoma, gastric cancer, and bladder cancer.

Results

Our results demonstrate that this predictive model outperforms current state-of-the-art methods and tumor microenvironment-based predictors. Additionally, the model quantifies the importance of pathways, pathway interactions, and genes in its predictions. A web server for IRnet has been developed and deployed, providing broad accessibility to users at https://irnet.missouri.edu.

Conclusion

IRnet is a competitive tool for predicting patient responses to immunotherapy, specifically ICIs. Its interpretability also offers valuable insights into the mechanisms underlying ICI treatments.

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