Abstract
Alpha-synuclein (α-syn) and amyloid-beta peptide (Aβ) accumulation cause neurodegenerative diseases. The accumulation of neurotoxins, like Aβ, tau, and α-syn is related to aging therefore studying aging mediated neurodegenerative disease is important. In this study, we used A53T tg mice in this mice behavioral and motor abnormalities could be promoted by Aβ and α-syn interaction, and we decided to prevent this interaction and their associated accumulation in the SN brain region in the A53T tg mice by Hericium erinaceus treatment. Three-month-old A53T mice were separated into three groups A53T, A53T+ low dose alcohol extracted mycelium (3.2 mg/30 g BW/day), and A53T+ high dose alcohol extracted mycelium (6.4 mg/30 g BW/day). Age-matched normal mice were used as a control. Our results confirmed that Hericium erinaceus mycelia extract prevented the formation of Aβ-mediated α-syn accumulation in the SN brain region of A53T tg mice by activating SIRT-1/ERK-1/2 mediated autophagy. We confirmed that SIRT-1/ERK-1/2 mediated autophagy via Hericium erinaceus treatment prevents Aβ and α-syn accumulation and regulates dopamine neuron survival. Our study makes significant contribution because we reported for the first time that Hericium erinaceus mycelia prevents the formation and accumulation of Aβ and α-syn in A53T tg mice by regulating SIRT-1/ERK-1/2 mediated autophagy.
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