Interpretable Neural ODEs for Gene Regulatory Network Discovery under Perturbations
Keywords: Gene Regulatory Network, Dynamical Systems, Single-cell RNA-sequencing, Neural ODE, Causal model, Causal discovery
Abstract: Modern high-throughput biological datasets with thousands of perturbations provide the opportunity for large-scale discovery of causal graphs that represent the regulatory interactions between genes. Numerous methods have been proposed to infer a directed acyclic graph (DAG) corresponding to the underlying gene regulatory network (GRN) that captures causal gene relationships. However, existing models have restrictive assumptions (e.g. linearity, acyclicity), limited scalability, and/or fail to address the dynamic nature of biological processes such as cellular differentiation. We propose PerturbODE, a novel framework that incorporates biologically informative neural ordinary differential equations (neural ODEs) to model cell state trajectories under perturbations and derive the causal GRN from the neural ODE's parameters. We demonstrate PerturbODE's efficacy in trajectory prediction and GRN inference across simulated and real over-expression datasets.
Primary Area: applications to physical sciences (physics, chemistry, biology, etc.)
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Submission Number: 8602
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