Intracellular α-synuclein assemblies are sufficient to alter nanoscale diffusion in the striatal extracellular space.

ABSTRACT: α-synucleinopathies progression involves the spread of α-synuclein aggregates through the extracellular space (ECS). Single-particle tracking studies showed that α-synuclein-induced neurodegeneration increases ECS molecular diffusivity. To disentangle the consequences of neuronal loss versus α-synuclein-positive intracellular assemblies formation, we performed near-infrared single-particle tracking to characterise ECS rheology in the striatum of mouse models of α-synucleinopathies. We showed that intracellular α-synuclein assemblies, without neurodegeneration, suffice to alter nanoscale diffusion in the striatal ECS.

SUBMITTER: Estaun-Panzano J 

PROVIDER: S-EPMC11686398 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature