Gut microbiota-derived propionate mediates the neuroprotective effect of osteocalcin in a mouse model of Parkinson’s disease
Autor: | Yu-ying Yang, Wei Qing Wang, Chang Shan, Yan yun Gu, Qian qian Zhuang, Xiao ke Kong, Jian-min Liu, Hong Yan Zhao, Yan ling Gong, Si yue Zhuang, Shu-min Wang, Guang Ning, Bei Tao, Yan fang Hou, Sheng-Tian Li, Xing zhi Guo, Arijit Ghosh, Ke cheng Zhu, Li hao Sun |
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Rok vydání: | 2021 |
Předmět: |
Male
Microbiology (medical) Agonist medicine.medical_specialty Parkinson's disease medicine.drug_class Osteocalcin Gut microbiota Gut flora Microbiology Neuroprotection lcsh:Microbial ecology Receptors G-Protein-Coupled Mice 03 medical and health sciences 0302 clinical medicine Internal medicine Propionate medicine Animals Infusions Parenteral Oxidopamine 030304 developmental biology chemistry.chemical_classification 0303 health sciences biology Dopaminergic Neurons Research Dopaminergic Parkinson Disease Fecal Microbiota Transplantation medicine.disease biology.organism_classification Anti-Bacterial Agents Gastrointestinal Microbiome Disease Models Animal Neuroprotective Agents Endocrinology chemistry Disease Progression Parkinson’s disease biology.protein lcsh:QR100-130 Enteric nervous system Propionates 030217 neurology & neurosurgery |
Zdroj: | Microbiome Microbiome, Vol 9, Iss 1, Pp 1-17 (2021) |
ISSN: | 2049-2618 |
Popis: | Background Parkinson’s disease (PD) is a neurodegenerative disorder with no absolute cure. The evidence of the involvement of gut microbiota in PD pathogenesis suggests the need to identify certain molecule(s) derived from the gut microbiota, which has the potential to manage PD. Osteocalcin (OCN), an osteoblast-secreted protein, has been shown to modulate brain function. Thus, it is of interest to investigate whether OCN could exert protective effect on PD and, if yes, whether the underlying mechanism lies in the subsequent changes in gut microbiota. Results The intraperitoneal injection of OCN can effectively ameliorate the motor deficits and dopaminergic neuronal loss in a 6-hydroxydopamine-induced PD mouse model. The further antibiotics treatment and fecal microbiota transplantation experiments confirmed that the gut microbiota was required for OCN-induced protection in PD mice. OCN elevated Bacteroidetes and depleted Firmicutes phyla in the gut microbiota of PD mice with elevated potential of microbial propionate production and was confirmed by fecal propionate levels. Two months of orally administered propionate successfully rescued motor deficits and dopaminergic neuronal loss in PD mice. Furthermore, AR420626, the agonist of FFAR3, which is the receptor of propionate, mimicked the neuroprotective effects of propionate and the ablation of enteric neurons blocked the prevention of dopaminergic neuronal loss by propionate in PD mice. Conclusions Together, our results demonstrate that OCN ameliorates motor deficits and dopaminergic neuronal loss in PD mice, modulating gut microbiome and increasing propionate level might be an underlying mechanism responsible for the neuroprotective effects of OCN on PD, and the FFAR3, expressed in enteric nervous system, might be the main action site of propionate. |
Databáze: | OpenAIRE |
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