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Li S, Wang D, Liu D, Meng X, Wang Z, Guo X, Liu Q, Liu P, Li S, Wang S, Yang R, Xu Y, Wang L, Kang J. Neurotransmitter accumulation and Parkinson's disease-like phenotype caused by anion channelrhodopsin opto-controlled astrocytic mitochondrial depolarization in substantia nigra pars compacta. MedComm (Beijing) 2024; 5:e568. [PMID: 38756440 PMCID: PMC11094672 DOI: 10.1002/mco2.568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 05/18/2024] Open
Abstract
Parkinson's disease (PD) is a mitochondria-related neurodegenerative disease characterized by locomotor deficits and loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNc). Majority of PD research primarily focused on neuronal dysfunction, while the roles of astrocytes and their mitochondria remain largely unexplored. To bridge the gap and investigate the roles of astrocytic mitochondria in PD progression, we constructed a specialized optogenetic tool, mitochondrial-targeted anion channelrhodopsin, to manipulate mitochondrial membrane potential in astrocytes. Utilizing this tool, the depolarization of astrocytic mitochondria within the SNc in vivo led to the accumulation of γ-aminobutyric acid (GABA) and glutamate in SNc, subsequently resulting in excitatory/inhibitory imbalance and locomotor deficits. Consequently, in vivo calcium imaging and interventions of neurotransmitter antagonists demonstrated that GABA accumulation mediated movement deficits of mice. Furthermore, 1 h/day intermittent astrocytic mitochondrial depolarization for 2 weeks triggered spontaneous locomotor dysfunction, α-synuclein aggregation, and the loss of DA neurons, suggesting that astrocytic mitochondrial depolarization was sufficient to induce a PD-like phenotype. In summary, our findings suggest the maintenance of proper astrocytic mitochondrial function and the reinstatement of a balanced neurotransmitter profile may provide a new angle for mitigating neuronal dysfunction during the initial phases of PD.
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Affiliation(s)
- Sen‐Miao Li
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- The Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Dian‐Dian Wang
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- The Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Dan‐Hua Liu
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- The Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Xiao‐Yan Meng
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- The Academy of Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Zhizhong Wang
- College of Electrical and Information EngineeringZhengzhou UniversityZhengzhouChina
| | - Xitong Guo
- Zhengzhou University of TechnologyZhengzhouChina
| | - Qian Liu
- North China University of Water Resources and Electric PowerZhengzhouChina
| | - Pei‐Pei Liu
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Shu‐Ang Li
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Songwei Wang
- College of Electrical and Information EngineeringZhengzhou UniversityZhengzhouChina
| | - Run‐Zhou Yang
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yuming Xu
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- NHC Key Laboratory of Prevention and Treatment of Cerebrovascular DiseaseZhengzhou UniversityZhengzhouChina
- Henan Key Laboratory of Cerebrovascular DiseasesZhengzhou UniversityZhengzhouChina
| | - Longde Wang
- Department of NeurologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
- NHC Key Laboratory of Prevention and Treatment of Cerebrovascular DiseaseZhengzhou UniversityZhengzhouChina
- Henan Key Laboratory of Cerebrovascular DiseasesZhengzhou UniversityZhengzhouChina
| | - Jian‐Sheng Kang
- Clinical Systems Biology LaboratoriesThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
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Zarrabian S, Jamali S, Fazli-Tabaei S, Haghparast A. Dopaminergic and nitric oxide systems interact to regulate the electrical activity of neurons in the medial septal nucleus in rats. Exp Brain Res 2022; 240:2581-2594. [PMID: 35976391 DOI: 10.1007/s00221-022-06435-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 07/13/2022] [Indexed: 11/04/2022]
Abstract
Research characterizing the neuronal substrate of anxiety has implicated different brain areas, including the medial septal nucleus (m-SEPT). Previous reports indicated a role of dopamine and nitric oxide (NO) in anxiety-related behaviors. In this study, the extracellular single-unit recording was performed from the m-SEPT in adult male albino Wistar rats. Baseline activity was recorded for 5 min, and the post-injection recording was performed for another 5 min after the microinjection of each drug. The results showed that (1) both D1- and D2-like receptor agonists (SKF-38393 and quinpirole) enhanced the firing rate of m-SEPT neurons; (2) both D1- and D2-like antagonists (SCH-23390 and sulpiride) attenuated the firing rate of m-SEPT neurons; (3) L-arginine (NO precursor) increased the firing rate of m-SEPT neurons, but a non-specific NOS inhibitor, L-NAME, elicited no significant alterations; (4) the non-specific NOS inhibitor reversed the enhanced firing rate produced by SKF-38393 and quinpirole; (5) neither of the dopaminergic antagonists changed the enhanced activity resulted from the application of the NO precursor. These results contribute to our understanding of the complex neurotransmitter interactions in the m-SEPT and showed that both dopaminergic and NO neurotransmission are involved in the modulation of the firing rate of neurons in the m-SEPT.
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Affiliation(s)
- Shahram Zarrabian
- Department of Anatomical Sciences and Cognitive Neuroscience, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Shole Jamali
- Student Research Committee, Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soheila Fazli-Tabaei
- Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, P.O. Box 19615-1178, Tehran, Iran.
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Wilson L, Lee CA, Mason CF, Khodjaniyazova S, Flores KB, Muddiman DC, Sombers LA. Simultaneous Measurement of Striatal Dopamine and Hydrogen Peroxide Transients Associated with L-DOPA Induced Rotation in Hemiparkinsonian Rats. ACS MEASUREMENT SCIENCE AU 2022; 2:120-131. [PMID: 36785724 PMCID: PMC9838821 DOI: 10.1021/acsmeasuresciau.1c00030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder commonly treated with levodopa (L-DOPA), which eventually induces abnormal involuntary movements (AIMs). The neurochemical contributors to these dyskinesias are unknown; however, several lines of evidence indicate an interplay of dopamine (DA) and oxidative stress. Here, DA and hydrogen peroxide (H2O2) were simultaneously monitored at discrete recording sites in the dorsal striata of hemiparkinsonian rats using fast-scan cyclic voltammetry. Mass spectrometry imaging validated the lesions. Hemiparkinsonian rats exhibited classic L-DOPA-induced AIMs and rotations as well as increased DA and H2O2 tone over saline controls after 1 week of treatment. By week 3, DA tone remained elevated beyond that of controls, but H2O2 tone was largely normalized. At this time point, rapid chemical transients were time-locked with spontaneous bouts of rotation. Striatal H2O2 rapidly increased with the initiation of contraversive rotational behaviors in lesioned L-DOPA animals, in both hemispheres. DA signals simultaneously decreased with rotation onset. The results support a role for these striatal neuromodulators in the adaptive changes that occur with L-DOPA treatment in PD and reveal a precise interplay between DA and H2O2 in the initiation of involuntary locomotion.
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Affiliation(s)
- Leslie
R. Wilson
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Christie A. Lee
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Catherine F. Mason
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Sitora Khodjaniyazova
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Kevin B. Flores
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - David C. Muddiman
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Leslie A. Sombers
- Department
of Chemistry, Department of Mathematics, Molecular Education, Technology,
and Research Innovation Center (METRIC), Center for Research in Scientific
Computation, and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
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Li H, Wu Y, Huang N, Zhao Q, Yuan Q, Shao B. γ-Aminobutyric Acid Promotes Osteogenic Differentiation of Mesenchymal Stem Cells by Inducing TNFAIP3. Curr Gene Ther 2021; 20:152-161. [PMID: 32951573 DOI: 10.2174/1566523220999200727122502] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Osteoporosis is the most common metabolic bone disease. There is still an unmet need for novel therapeutic agents that could be beneficial as osteoporosis treatments. It has been reported that the neurotransmitter γ-aminobutyric acid (GABA) might be associated with human bone formation. However, the precise mechanism remains unclear. OBJECTIVE To investigate the effect of GABA on bone metabolism and explore the possible role of TNFAIP3 in this process. METHODS GABA had little effect on the proliferation of human mesenchymal stem cells (hMSCs) and RAW 264.7 cells, as indicated by the cell counting kit-8 (CCK-8) assay. The results showed that GABA enhanced the intensity of ALP staining, ALP activity, and accumulation of Ca2+ mineralized nodules in hMSCs during osteogenic induction. RESULTS The qRT-PCR results indicated that GABA treatment significantly increased the mRNA expression of osteogenic genes in hMSCs. In RAW 264.7 cells, TRAP staining showed that GABA did not alter the number or size of osteoclasts or the expression of osteoclastic genes, which suggests that GABA does not affect osteoclastic differentiation. Mechanistically, GABA treatment significantly induced the sustained expression of TNFAIP3. Furthermore, by knocking down TNFAIP3, the osteogenic effect of GABA was antagonized, which suggests that TNFAIP3 mediates the effects of GABA in hMSCs. CONCLUSION Our results suggested that GABA treatment positively regulated osteogenic differentiation by upregulating TNFAIP3, while no obvious effect on osteoclastic differentiation was detected. Therefore, our results provide a potential gene therapy for the treatment of osteoporosis and low bone mineral density.
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Affiliation(s)
- Hanwen Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yongyao Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Ning Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Qi Zhao
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Quan Yuan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Bin Shao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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