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Role of alpha-synuclein in autophagy modulation of primary human T lymphocytes.

Abstract : It has been demonstrated that α-synuclein can aggregate and contribute to the pathogenesis of some neurodegenerative diseases and it is capable of hindering autophagy in neuronal cells. Here, we investigated the implication of α-synuclein in the autophagy process in primary human T lymphocytes. We provide evidence that: (i) knocking down of the α-synuclein gene resulted in increased autophagy, (ii) autophagy induction by energy deprivation was associated with a significant decrease of α-synuclein levels, (iii) autophagy inhibition by 3-methyladenine or by ATG5 knocking down led to a significant increase of α-synuclein levels, and (iv) autophagy impairment, constitutive in T lymphocytes from patients with systemic lupus erythematosus, was associated with abnormal accumulation of α-synuclein aggregates. These results suggest that α-synuclein could be considered as an autophagy-related marker of peripheral blood lymphocytes, potentially suitable for use in the clinical practice.
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T Colasanti, M Vomero, C Alessandri, C Barbati, A Maselli, et al.. Role of alpha-synuclein in autophagy modulation of primary human T lymphocytes.. Cell Death and Disease, Nature Publishing Group, 2014, 5, pp.e1265. ⟨10.1038/cddis.2014.211⟩. ⟨pasteur-01197320⟩



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