2020Nauchno-prakticheskii zhurnal «Medicinskaia genetika»Open access

Plasma exosomal alpha-synuclein in inherited forms of Parkinson’s disease

Darya Kulabukhova, А. К. Емельянов, Konstantin Senkevich, E. V. Gracheva, Irina Miliukhina, Н. А. Верлов, Е. Ю. Варфоломеева, А. А. Тимофеева, A. Shvartsman, С. Н. Пчелина

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Abstract

Предполагается, что экзосомы (микровезикулы размером 40-100 нм) могут играть ключевую роль в транспорте патогенных форм альфа-синуклеина при болезни Паркинсона (БП). В настоящем исследовании проведена оценка влияния мутаций в генах GBA и LRRK2 на уровень альфа-синуклеина экзосом плазмы крови. Показано, что мутации в генах GBA и LRRK2 не влияют на уровень альфа-синуклеина экзосом плазмы крови. Parkinson’s disease (PD) is the second most frequent neurodegenerative disorder. Alpha-synuclein misfolding and aggregation resulting in neurototoxicity is a hallmark of PD. Exosomes (extrcellular vesicles 40-100 nm in size) can play a key role in the transport of pathogenic forms of alpha-synuclein. The aim of our work is to evaluate an effect of GBA and LRRK2 mutations on alpha-synuclein level in exosomes derived from peripheral blood plasma. No significant difference was found for exosomal alpha-synuclein levels patients with sporadic, GBA- and LRRK2- associated PD, PD with dementia compared to controls. Our results indicate that mutations in the LRRK2 and GBA genes do not influence on plasma exosomal alpha-synuclein level.

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What this paper is about

Предполагается, что экзосомы (микровезикулы размером 40-100 нм) могут играть ключевую роль в транспорте патогенных форм альфа-синуклеина при болезни Паркинсона (БП). В настоящем исследовании проведена оценка влияния мутаций в генах GBA и LRRK2 на уровень альфа-синуклеина экзосом плазмы крови. Показано, что мутации в генах GBA и LRRK2 не влияют на уровень альфа-синуклеина экзосом плазмы крови. Parkinson’s disease (PD) is the second most frequent neurodegenerative disorder. Alpha-synuclein misfolding and aggregation resulting in neurototoxicity is a hallmark of PD. Exosomes (extrcellular vesicles 40-100 nm in size) can play a key role in the transport of pathogenic forms of alpha-synuclein. The aim of our work is to evaluate an effect of GBA and LRRK2 mutations on alpha-synuclein level in exosomes derived from peripheral blood plasma. No significant difference was found for exosomal alpha-synuclein levels patients with sporadic, GBA- and LRRK2- associated PD, PD with dementia compared to controls. Our results indicate that mutations in the LRRK2 and GBA genes do not influence on plasma exosomal alpha-synuclein level.

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Available abstract

Предполагается, что экзосомы (микровезикулы размером 40-100 нм) могут играть ключевую роль в транспорте патогенных форм альфа-синуклеина при болезни Паркинсона (БП). В настоящем исследовании проведена оценка влияния мутаций в генах GBA и LRRK2 на уровень альфа-синуклеина экзосом плазмы крови. Показано, что мутации в генах GBA и LRRK2 не влияют на уровень альфа-синуклеина экзосом плазмы крови. Parkinson’s disease (PD) is the second most frequent neurodegenerative disorder. Alpha-synuclein misfolding and aggregation resulting in neurototoxicity is a hallmark of PD. Exosomes (extrcellular vesicles 40-100 nm in size) can play a key role in the transport of pathogenic forms of alpha-synuclein. The aim of our work is to evaluate an effect of GBA and LRRK2 mutations on alpha-synuclein level in exosomes derived from peripheral blood plasma. No significant difference was found for exosomal alpha-synuclein levels patients with sporadic, GBA- and LRRK2- associated PD, PD with dementia compared to controls. Our results indicate that mutations in the LRRK2 and GBA genes do not influence on plasma exosomal alpha-synuclein level.

Key concepts: LRRK2, Microvesicles, Alpha-synuclein, Parkinson's disease, Alpha (finance), Exosome, Disease, Cancer research

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