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Alpha-synuclein Oligomer (α-syn Oligomer)

Target: α-syn Oligomer
Molecular classification: Protein aggregate, Oligomer

Overview

Alpha-synuclein oligomers are soluble, non-fibrillar aggregates formed by the assembly of several alpha-synuclein (α-syn) monomers. These oligomeric species are highly heterogeneous in terms of size, structure, and stability and play a central role in the pathogenesis of synucleinopathies. They disrupt cellular membranes, induce mitochondrial dysfunction, and promote oxidative stress. Alpha-synuclein oligomers represent promising targets for diagnostic biomarker development and therapeutic intervention strategies aimed at halting neurodegenerative progression.

Other names: Alpha-synuclein aggregatesα-syn OligomersSoluble alpha-synucleinNon-fibrillar alpha-synuclein aggregatesAlpha-synuclein protofibrils

Biological functions

Synaptic vesicle regulation (indirectly, via monomer)Membrane disruptionMitochondrial dysfunction inductionOxidative stress inductionProtein aggregationCross-seeding with other proteins

Disease associations

Parkinson's diseaseSynucleinopathiesLewy body dementiaMultiple system atrophy

Safety considerations

Targeting soluble oligomers without affecting monomeric functionOff-target effects due to structural heterogeneityBlood-brain barrier penetration for therapeutics

Biomarkers

Cerebrospinal fluid alpha-synuclein oligomer levelsPlasma alpha-synuclein oligomer levels

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