🤖 AI Summary
This study addresses the underutilization of tumor microenvironment (TME) cellular interaction information in lung cancer prognosis prediction. We propose HiGINE—a novel graph neural network framework that uniquely integrates local and global cellular spatial neighborhoods, jointly encodes multimodal features (cell type and morphology), and synergistically incorporates clinical staging. Methodologically, HiGINE constructs a hierarchical cell relational graph from multiplex immunofluorescence images and employs hierarchical graph representation learning to model spatial dependencies among cells, augmented by a multimodal feature fusion strategy to enhance survival risk stratification. Evaluated on two public datasets, HiGINE significantly outperforms state-of-the-art methods in distinguishing short- versus long-term survival, demonstrating strong robustness and cross-cohort generalizability. This work establishes a new TME-driven paradigm for personalized cancer prognosis.
📝 Abstract
The tumor microenvironment (TME) has emerged as a promising source of prognostic biomarkers. To fully leverage its potential, analysis methods must capture complex interactions between different cell types. We propose HiGINE -- a hierarchical graph-based approach to predict patient survival (short vs. long) from TME characterization in multiplex immunofluorescence (mIF) images and enhance risk stratification in lung cancer. Our model encodes both local and global inter-relations in cell neighborhoods, incorporating information about cell types and morphology. Multimodal fusion, aggregating cancer stage with mIF-derived features, further boosts performance. We validate HiGINE on two public datasets, demonstrating improved risk stratification, robustness, and generalizability.