This work aims to gain a better understanding of αSyn species involved in disease spreading. It focuses on αSyn fragments and shows that two of them, αSyn 1-95 and 61-140, fulfill all the criteria of spreading species. Fragment-seeded aggregates had distinct aggregation kinetics, patterns, and proteinase K resistance. They also led to slow-onset toxicity that was reduced with domain-specific antibodies. This study suggests that αSyn fragments might be relevant for spreading, aggregation-fate determination, and differential strain formation. Herein, new insights on the nature of such aggregates and on the possible role of proteases in the pathogenesis of synucleinopathies are discussed.
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This work aims to gain a better understanding of αSyn species involved in disease spreading. It focuses on αSyn fragments and shows that two of them, αSyn 1-95 and 61-140, fulfill all the criteria of spreading species. Fragment-seeded aggregates had distinct aggregation kinetics, patterns, and proteinase K resistance. They also led to slow-onset toxicity that was reduced with domain-specific antibodies. This study suggests that αSyn fragments might be relevant for spreading, aggregation-fate det...
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