Graphene quantum dots target Parkinson’s‑related protein aggregates

Researchers from Poznan University of Medical Sciences, Polish Academy of Sciences, Hirosaki University Graduate School of Medicine, University of Amsterdam, Florida Polytechnic University and Jagiellonian University have shown that graphene quantum dots (GQDs) can disrupt the harmful aggregation of the protein α‑synuclein (ASN), which plays a central role in Parkinson’s disease and multiple system atrophy (MSA). In these disorders, ASN assembles into stable protein clusters inside brain cells, damaging them over time; the study demonstrates that properly engineered GQDs can interfere with this clustering process and help reduce the toxic protein load.

The team synthesized custom GQDs and carried out a detailed physicochemical characterization, including their surface chemistry, charge, optical behavior and crystalline structure. This allowed them to link specific material features to biological activity, an important step for rational design of nanomaterials that interact with proteins in a controlled way. They then evaluated the GQDs in a multi‑stage experimental pipeline that covered cell‑free aggregation assays, human dermal fibroblasts, primary murine dopaminergic neurons and an in vivo MSA mouse model.

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