TY - JOUR
T1 - Post-translational modifications of soluble α-synuclein regulate the amplification of pathological α-synuclein
AU - Zhang, Shujing
AU - Zhu, Ruowei
AU - Pan, Buyan
AU - Xu, Hong
AU - Olufemi, Modupe F.
AU - Gathagan, Ronald J.
AU - Li, Yuanxi
AU - Zhang, Luyan
AU - Zhang, Jasmine
AU - Xiang, Wenxuan
AU - Kagan, Eliot Masahiro
AU - Cao, Xingjun
AU - Yuan, Chaoxing
AU - Kim, Soo Jung
AU - Williams, Christopher K.
AU - Magaki, Shino
AU - Vinters, Harry V.
AU - Lashuel, Hilal A.
AU - Garcia, Benjamin A.
AU - James Petersson, E.
AU - Trojanowski, John Q.
AU - Lee, Virginia M.Y.
AU - Peng, Chao
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Nature America, Inc.
PY - 2023/2
Y1 - 2023/2
N2 - Cell-to-cell transmission and subsequent amplification of pathological proteins promote neurodegenerative disease progression. Most research on this has focused on pathological protein seeds, but how their normal counterparts, which are converted to pathological forms during transmission, regulate transmission is less understood. Here we show in cultured cells that phosphorylation of soluble, nonpathological α-synuclein (α-Syn) at previously identified sites dramatically affects the amplification of pathological α-Syn, which underlies Parkinsonʼs disease and other α-synucleinopathies, in a conformation- and phosphorylation site-specific manner. We performed LC–MS/MS analyses on soluble α-Syn purified from Parkinsonʼs disease and other α-synucleinopathies, identifying many new α-Syn post-translational modifications (PTMs). In addition to phosphorylation, acetylation of soluble α-Syn also modified pathological α-Syn transmission in a site- and conformation-specific manner. Moreover, phosphorylation of soluble α-Syn could modulate the seeding properties of pathological α-Syn. Our study represents the first systematic analysis how of soluble α-Syn PTMs affect the spreading and amplification of pathological α-Syn, which may affect disease progression.
AB - Cell-to-cell transmission and subsequent amplification of pathological proteins promote neurodegenerative disease progression. Most research on this has focused on pathological protein seeds, but how their normal counterparts, which are converted to pathological forms during transmission, regulate transmission is less understood. Here we show in cultured cells that phosphorylation of soluble, nonpathological α-synuclein (α-Syn) at previously identified sites dramatically affects the amplification of pathological α-Syn, which underlies Parkinsonʼs disease and other α-synucleinopathies, in a conformation- and phosphorylation site-specific manner. We performed LC–MS/MS analyses on soluble α-Syn purified from Parkinsonʼs disease and other α-synucleinopathies, identifying many new α-Syn post-translational modifications (PTMs). In addition to phosphorylation, acetylation of soluble α-Syn also modified pathological α-Syn transmission in a site- and conformation-specific manner. Moreover, phosphorylation of soluble α-Syn could modulate the seeding properties of pathological α-Syn. Our study represents the first systematic analysis how of soluble α-Syn PTMs affect the spreading and amplification of pathological α-Syn, which may affect disease progression.
UR - http://www.scopus.com/inward/record.url?scp=85146637444&partnerID=8YFLogxK
U2 - 10.1038/s41593-022-01239-7
DO - 10.1038/s41593-022-01239-7
M3 - Article
C2 - 36690898
AN - SCOPUS:85146637444
SN - 1097-6256
VL - 26
SP - 213
EP - 225
JO - Nature neuroscience
JF - Nature neuroscience
IS - 2
ER -