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Constraint-based metabolic modeling is a powerful way to study the mechanistic basis of cellular states and disease, but effective use demands substantial computational expertise and careful coordination of multi-step analyses. We developed MechAInistic to lower this barrier enabling researchers to ask complex biological questions in natural language. MechAInistic is a multi-agent system harnessing large language models organized around an Architect-Reviewer pattern that that converts a natural-language question into an executable, model-grounded workflow and produces a structured report. It supports pathway comparison, perturbation analysis, drug-target exploration, and literature interpretation across healthy and disease paired states. We evaluated MechAInistic's therapeutic hypothesis generation using two immune-cell use-cases. For rheumatoid arthritis/healthy Naive B models, it identified mitochondrial metabolic rewiring and nominated Devimistat/CPI-613 as an investigational OGDH-centered hypothesis. In CD4+ Th17 multiple sclerosis/healthy models, the workflow identified NADP-dependent isocitrate dehydrogenase as the optimal target and proposed Ivosidenib as an FDA-approved repurposing candidate.
Loecker et al. (Wed,) studied this question.