Poly(ADP-ribose) drives pathologic α-synuclein neurodegeneration in Parkinson's disease.
Poly(ADP-ribose) drives pathologic α-synuclein neurodegeneration in Parkinson's disease.
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DOI:
10.1126/science.aat8407
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发表时间:
2018-11-02
期刊:
影响因子:
--
通讯作者:
Dawson VL
中科院分区:
文献类型:
--
作者:
Kam TI;Mao X;Park H;Chou SC;Karuppagounder SS;Umanah GE;Yun SP;Brahmachari S;Panicker N;Chen R;Andrabi SA;Qi C;Poirier GG;Pletnikova O;Troncoso JC;Bekris LM;Leverenz JB;Pantelyat A;Ko HS;Rosenthal LS;Dawson TM;Dawson VL
The pathologic accumulation and aggregation of α-synuclein (α-syn) underlies Parkinson’s disease (PD). The molecular mechanisms by which pathologic α-syn causes neurodegeneration in PD is not known. Here we found that pathologic α-syn activates poly (ADP-ribose) (PAR) polymerase-1 (PARP-1) and PAR generation accelerates the formation of pathologic α-syn resulting in cell death via parthanatos. PARP inhibitors or genetic deletion of PARP-1 prevented pathologic α-syn toxicity. In a feed-forward loop, PAR converted pathologic α-syn to a more toxic strain. PAR levels were increased in the cerebral spinal fluid and brains of PD patients suggesting that PARP activation plays a role in PD pathogenesis. Thus, strategies aimed at inhibiting PARP-1 activation could hold promise as a disease modifying therapy to prevent the loss of dopamine (DA) neurons in PD. Poly (ADP-ribose) (PAR) mediates and accelerates neurodegeneration in Parkinson’s disease.
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DOI:
10.1186/s40661-017-0055-8
发表时间:
2017
期刊:
Gynecologic oncology research and practice
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1126/science.aah3374
发表时间:
2016-09-30
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Dawson TM
DOI:
10.1073/pnas.1610099113
发表时间:
2016-08-23
影响因子:
11.1
作者:
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通讯作者:
Hoang, Quyen Q.
DOI:
10.1073/pnas.0606526103
发表时间:
2006-11-28
影响因子:
11.1
作者:
Andrabi, Shaida A.;Kim, No Soo;Dawson, Ted M.
通讯作者:
Dawson, Ted M.
影响因子:
4.6
作者:
Karuppagounder SS;Brahmachari S;Lee Y;Dawson VL;Dawson TM;Ko HS
通讯作者:
Ko HS