2. Academic Validation
  3. A small molecule 20C from Gastrodia elata inhibits α-synuclein aggregation and prevents progression of Parkinson's disease

A small molecule 20C from Gastrodia elata inhibits α-synuclein aggregation and prevents progression of Parkinson's disease

  • Cell Death Dis. 2023 Sep 6;14(9):594. doi: 10.1038/s41419-023-06116-0.
Ye Peng 1,  Jun-Rui Ye 2,  Sha-Sha Wang 3,  Wen-Bin He 4,  Zhong-Ping Feng 5,  Hong-Shuo Sun 5,  Shi-Feng Chu 6,  Zhao Zhang 7,  Nai-Hong Chen 8 9 10
Affiliations

Affiliations

  • 1 School of Pharmacy, Minzu University of China, Beijing, 100081, China.
  • 2 State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medical & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
  • 3 Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
  • 4 Shanxi University of Chinese Medicine, National International Joint Research Center for Molecular Chinese Medicine, Taiyuan, 030024, China.
  • 5 Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada.
  • 6 State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medical & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China. chushifeng@imm.ac.cn.
  • 7 State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medical & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China. zhangzhao@imm.ac.cn.
  • 8 School of Pharmacy, Minzu University of China, Beijing, 100081, China. chennh@imm.ac.cn.
  • 9 State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medical & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China. chennh@imm.ac.cn.
  • 10 Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China. chennh@imm.ac.cn.
PMID: 37673867 DOI: 10.1038/s41419-023-06116-0
Abstract

Parkinson's disease (PD) is pathologically manifested by the aggregation of α-synuclein, which has been envisioned as a promising disease-modifying target for PD. Here, we identified 20C, a bibenzyl compound derived from Gastrodia elata, able to inhibit the aggregation of A53T variants of α-synuclein directly in vitro. Computational analysis revealed that 20C binds to cavities in mature α-synuclein fibrils, and it indeed displays a strong interaction with α-synuclein and reduced their β-sheet structure by microscale thermophoresis and circular dichroism, respectively. Moreover, incubating neural cells with 20C reduced the amounts of α-synuclein inclusions significantly. The treatment of A53T α-Syn transgenic mice with 20C significantly reduces the toxic α-synuclein levels, improves behavioral performance, rescues dopaminergic neuron, and enhances functional connections between SNc and PD associated brain areas. The transcriptome analysis of SNc demonstrated that 20C improves mitochondrial dynamics, which protects mitochondrial morphology and function against α-synuclein induced degeneration. Overall, 20C appears to be a promising candidate for the treatment of PD.

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