Gut mucosal cells transfer α-synuclein to the vagus nerve.
Gut mucosal cells transfer α-synuclein to the vagus nerve.
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DOI:
10.1172/jci.insight.172192
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发表时间:
2023-12-08
期刊:
影响因子:
8
通讯作者:
Liddle RA
中科院分区:
文献类型:
--
作者:
Chandra R;Sokratian A;Chavez KR;King S;Swain SM;Snyder JC;West AB;Liddle RA
Epidemiological and histopathological findings have raised the possibility that misfolded α-synuclein protein might spread from the gut to the brain and increase the risk of Parkinson’s disease. Although past experimental studies in mouse models have relied on gut injections of exogenous recombinant α-synuclein fibrils to study gut-to-brain α-synuclein transfer, the possible origins of misfolded α-synuclein within the gut have remained elusive. We recently demonstrated that sensory cells of intestinal mucosa express α-synuclein. Here, we employed mouse intestinal organoids expressing human α-synuclein to observe the transfer of α-synuclein protein from epithelial cells in organoids to cocultured nodose neurons devoid of α-synuclein. In mice expressing human α-synuclein, but no mouse α-synuclein, α-synuclein fibril-templating activity emerged in α-synuclein–seeded fibril aggregation assays in intestine, vagus nerve, and dorsal motor nucleus. In newly engineered transgenic mice that restrict pathological human α-synuclein expression to intestinal epithelial cells, α-synuclein fibril-templating activity transfered to the vagus nerve and dorsal motor nucleus. Subdiaphragmatic vagotomy prior to induction of α-synuclein expression in intestinal epithelial cells effectively protected the hindbrain from emergence of α-synuclein fibril-templating activity. Overall, these findings highlight a potential non-neuronal source of fibrillar α-synuclein protein that might arise in gut mucosal cells.
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影响因子:
4
作者:
Gustafsson G;Lööv C;Persson E;Lázaro DF;Takeda S;Bergström J;Erlandsson A;Sehlin D;Balaj L;György B;Hallbeck M;Outeiro TF;Breakefield XO;Hyman BT;Ingelsson M
通讯作者:
Ingelsson M
影响因子:
25
作者:
Buchanan KL;Rupprecht LE;Kaelberer MM;Sahasrabudhe A;Klein ME;Villalobos JA;Liu WW;Yang A;Gelman J;Park S;Anikeeva P;Bohórquez DV
通讯作者:
Bohórquez DV
影响因子:
4.6
作者:
Dieriks BV;Park TI;Fourie C;Faull RL;Dragunow M;Curtis MA
通讯作者:
Curtis MA
影响因子:
16.2
作者:
Bendor JT;Logan TP;Edwards RH
通讯作者:
Edwards RH
影响因子:
15.9
作者:
Bohorquez, Diego V.;Shahid, Rafiq A.;Liddle, Rodger A.
通讯作者:
Liddle, Rodger A.