کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1929327 1050452 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
α-Synuclein modulates neurite outgrowth by interacting with SPTBN1
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
α-Synuclein modulates neurite outgrowth by interacting with SPTBN1
چکیده انگلیسی

α-Synuclein is the major component of Lewy bodies and Lewy neurites, the pathological hallmarks of surviving neuronal cells in Parkinson’s disease patients. However, the physiological role played by α-synuclein remains unclear. In this study, spectrin beta non-erythrocyte 1 (SPTBN1) interacted with α-synuclein in phage display assays using a normalized human brain cDNA library. A direct interaction between α-synuclein and SPTBN1 was confirmed by GST pull-down and co-immunoprecipitation assays. SPTBN1 and α-synuclein proteins colocalized in N2a neuronal cells. Transfection of SPTBN1 caused human SH-SY5Y dopaminergic neuron cells to inappropriately induce neurites, which extended from cell bodies. Cotransfection with α-synuclein reversed SPTBN1-induced excessive neurite branching in SH-SY5Y cells, and only a single neurite extended from each neuron. These results suggest that α-synuclein modulates neurite outgrowth by interacting with cytoskeletal proteins such as SPTBN1.


► SPTBN1 was identified as an α-synuclein-interacting partner in a phage display screen.
► SPTBN1 specifically interacted with α-synuclein in vitro and in neuronal cells.
► Overexpression of SPTBN1 induced excessive neurite formation from dopaminergic neuronal cell bodies.
► Cotransfection with α-synuclein reversed SPTBN1-induced neurite branching.
► α-Synuclein may modulate neurite outgrowth by interacting with the cytoskeletal protein SPTBN1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 424, Issue 3, 3 August 2012, Pages 497–502
نویسندگان
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