Spatial multi-omics reveals region-specific molecular signatures in a 6-OHDA model of Parkinson’s disease

Description

Sun Young Lee leads a twelve-author team mapping Parkinson's disease chemistry in place, layering metabolite imaging and protein measurement over the two brain regions the disease hits hardest. Their 2026 study used a toxin model of Parkinson's in rodents, imaging small molecules where they sit and sorting cells by laser to read their proteins in the substantia nigra and striatum.

Each region carried a distinct molecular signature in both layers, as expected at the lesion sites. Less expected were wide off-target changes rippling through connected circuits far from the damage, showing the model's footprint is anything but local. The authors argue that even a simple toxin model involves broad network reorganization, not just dopamine cell death. They present the spatial multi-omics approach as a foundation. It can be used to follow how that reorganization unfolds over time and across the brain.

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Source: https://europepmc.org/article/MED/PMC13597527