PMID- 32568105 OWN - NLM STAT- MEDLINE DCOM- 20210819 LR - 20210819 IS - 1877-718X (Electronic) IS - 1877-7171 (Linking) VI - 10 IP - 3 DP - 2020 TI - Fasudil Promotes alpha-Synuclein Clearance in an AAV-Mediated alpha-Synuclein Rat Model of Parkinson's Disease by Autophagy Activation. PG - 969-979 LID - 10.3233/JPD-191909 [doi] AB - BACKGROUND: Parkinson's disease (PD) is the second most common neurodegenerative disorder, but the disease-modifying therapies focusing on the core pathological changes are still unavailable. Rho-associated protein kinase (ROCK) has been suggested as a promising target for developing neuroprotective therapies in PD. OBJECTIVE: We aimed to explore the promotion of alpha-synuclein (alpha-syn) clearance in a rat model. METHODS: In a rat model induced by unilateral injection of adeno-associated virus of serotype 9 (AAV9) expressing A53T alpha-syn (AAV9-A53T-alpha-syn) into the right substantia nigra, we aimed to investigate whether Fasudil could promote alpha-syn clearance and thereby attenuate motor impairments and dopaminergic deficits. RESULTS: In our study, treatment with Fasudil (5 mg/kg rat weight/day) for 8 weeks significantly improved the motor deficits in the Cylinder and Rotarod tests. In the in vivo positron emission tomography imaging with the ligand 18F-dihydrotetrabenazine, Fasudil significantly enhanced the dopaminergic imaging in the injected striatum of the rat model (p < 0.05 vs. vehicle group, p < 0.01 vs. left striatum in Fasudil group). The following mechanistic study confirmed that Fasudil could promote the autophagic clearance of alpha-syn by Becline 1 and Akt/mTOR pathways. CONCLUSION: Our study suggested that Fasudil, the ROCK2 inhibitor, could attenuate the anatomical and behavioral lesions in the Parkinsonian rat model by autophagy activation. Our results identify Fasudil as a drug with high translational potential as disease-modifying treatment for PD and other synucleinopathies. FAU - Yang, Yu-Jie AU - Yang YJ AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. AD - Institute of Biomedical Science, Fudan University, Shanghai, China. FAU - Bu, Lu-Lu AU - Bu LL AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. AD - Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China. FAU - Shen, Cong AU - Shen C AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Ge, Jing-Jie AU - Ge JJ AD - PET Center, Fudan University, Shanghai, China. FAU - He, Shu-Jin AU - He SJ AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Yu, Hui-Ling AU - Yu HL AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Tang, Yi-Lin AU - Tang YL AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Jue, Zhao AU - Jue Z AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Sun, Yi-Min AU - Sun YM AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Yu, Wen-Bo AU - Yu WB AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Zuo, Chuan-Tao AU - Zuo CT AD - PET Center, Fudan University, Shanghai, China. FAU - Wu, Jian-Jun AU - Wu JJ AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Wang, Jian AU - Wang J AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. FAU - Liu, Feng-Tao AU - Liu FT AD - Department of Neurology & National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China. AD - Department of Neurology, Huashan Hospital North, Fudan University, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Parkinsons Dis JT - Journal of Parkinson's disease JID - 101567362 RN - 0 (Snca protein, rat) RN - 0 (alpha-Synuclein) RN - VTD58H1Z2X (Dopamine) SB - IM MH - Animals MH - Autophagy/physiology MH - Disease Models, Animal MH - Dopamine/*metabolism MH - Dopaminergic Neurons/*metabolism MH - Female MH - Neurodegenerative Diseases/metabolism MH - Parkinson Disease/drug therapy/*metabolism MH - Rats, Sprague-Dawley MH - Substantia Nigra/metabolism/pathology MH - alpha-Synuclein/*metabolism OTO - NOTNLM OT - A53T alpha-synuclein OT - Fasudil OT - Parkinson's disease OT - macroautophagy OT - positron emission tomography OT - vesicular monoamine transporter 2 EDAT- 2020/06/23 06:00 MHDA- 2021/08/20 06:00 CRDT- 2020/06/23 06:00 PHST- 2020/06/23 06:00 [pubmed] PHST- 2021/08/20 06:00 [medline] PHST- 2020/06/23 06:00 [entrez] AID - JPD191909 [pii] AID - 10.3233/JPD-191909 [doi] PST - ppublish SO - J Parkinsons Dis. 2020;10(3):969-979. doi: 10.3233/JPD-191909.