ReferenceID 3722
Piperine ameliorates SCA17 neuropathology by reducing ER stress
Mol Neurodegener
BACKGROUND: Spinocerebellar ataxia 17 (SCA17) belongs to the family of neurodegenerative diseases caused by polyglutamine (polyQ) expansion. In SCA17, polyQ expansion occurs in the TATA box binding protein (TBP) and lead
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Record Fields
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- Reference Id
- 3722
- Evidence Id
- 20312
- Core Evidence Id
- 20312
- Source Reference Id
- 720
- Herb2 Reference Id
- HBREF001241
- Subject Paper Key
- HBIN040071_29378605
- Pubmed Id
- 29378605
- Doi
- 10.1186/s13024-018-0236-x
- Paper Title
- Piperine ameliorates SCA17 neuropathology by reducing ER stress
- Paper Abstract
- BACKGROUND: Spinocerebellar ataxia 17 (SCA17) belongs to the family of neurodegenerative diseases caused by polyglutamine (polyQ) expansion. In SCA17, polyQ expansion occurs in the TATA box binding protein (TBP) and leads to the misfolding of TBP and the preferential degeneration in the cerebellar Purkinje neurons. Currently there is no effective treatment for SCA17. Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a recently identified neurotrophic factor, and increasing MANF expression ameliorated SCA17 neuropathology in TBP-105Q knock-in (KI) mouse model, indicating that MANF could be a therapeutic target for treating SCA17. METHODS: In this study, we screened a collection of 2000 FDA-approved chemicals using a stable cell line expressing luciferase reporter, which is driven by MANF promoter. We identified several potential candidates that can induce the expression of MANF. Of these inducers, piperine is an agent that potently induces the luciferase expression or MANF expression. RESULTS: Addition of piperine in both cellular and mouse models of SCA17 alleviated toxicity caused by mutant TBP. Although mutant TBP is primarily localized in the nuclei, the polyQ expansion in TBP is able to induce ER stress, suggesting that nuclear misfolded proteins can also elicit ER stress as cytoplasmic misfolded proteins do. Moreover, piperine plays its protective role by reducing toxicity caused by the ER stress. CONCLUSION: Our study established piperine as a MANF-based therapeutic agent for ER stress-related neuropathology in SCA17.
- Journal
- Mol Neurodegener
- Publish Year
- 2018
- Experiment Subject
- tbp-105q knock-in (ki) mouse,cellular and mouse models of sca17
- Experiment Type
- Animal Experiment
- Phenotype Related
- Toxicity Ii Parkinson's Disease Ii Alzheimer's Disease
- Paper Title Cn
- Paper Title En
- Piperine ameliorates SCA17 neuropathology by reducing ER stress
- Bilingual Status
- semi_complete