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Li MM, Shi MJ, Feng CC, Yu ZY, Bai XF, Lu-Lu. LncRNA KCNQ1OT1 promotes NLRP3 inflammasome activation in Parkinson's disease by regulating pri-miR-186/mature miR-186/NLRP3 axis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167454. [PMID: 39122224 DOI: 10.1016/j.bbadis.2024.167454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 06/07/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Increasing evidence indicated that neuroinflammation was involved in progression of Parkinson's disease (PD). Long noncoding RNAs (lncRNAs) played important roles in regulating inflammatory processes in multiple kinds of human diseases such as cancer diabetes, cardiomyopathy, and neurodegenerative disorders. The mechanisms by which lncRNAs regulated PD related inflammation and dopaminergic neuronal loss have not yet been fully elucidated. In current study, we intended to explore the function and potential mechanism of lncRNA KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1) in regulating inflammasome activation in PD. Functional assays confirmed that knockdown of KCNQ1OT1 suppress microglial NLR family pyrin domain containing 3 (NLRP3) inflammasome activation and attenuated dopaminergic neuronal loss in PD model mice. As KCNQ1OT1 located in both cytoplasm and nucleus of microglia, we demonstrated that KCNQ1OT1 promoted microglial NLRP3 inflammasome activation by competitive binding with miR-186 in cytoplasm and inhibited pri-miR-186 mediated NLRP3 silencing through recruitment of DiGeorge syndrome critical region gene 8 (DGCR8) in nucleus, respectively. Our study found a novel lncRNA-pri-miRNA/mature miRNA-mRNA regulatory network in microglia mediated NLRP3 inflammasome activation and dopaminergic neuronal loss, provided further insights for the treatment of Parkinson's disease.
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Affiliation(s)
- Meng-Meng Li
- Department of Neurology and Institute of Neurology, Huashan Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai 200040, China.
| | - Mei-Juan Shi
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Chen-Chen Feng
- Department of Geriatrics, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhong-Yu Yu
- Sijing Community Health Service Center of Songjiang District, Shanghai 201600, China
| | - Xiao-Fei Bai
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao 266071, China
| | - Lu-Lu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
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2
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Zhang S, Geng Y, Jiang X, Sun Z, Yan M, Bi J, Tian X, Wang Q. Investigating the mechanisms of inflammation and immune alterations in Parkinson's disease using spatial transcriptomics techniques. Brain Res Bull 2024; 217:111076. [PMID: 39306046 DOI: 10.1016/j.brainresbull.2024.111076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 09/02/2024] [Accepted: 09/09/2024] [Indexed: 10/11/2024]
Abstract
In recent years, overwhelming evidence has emphasized the crucial role of inflammation in the pathogenesis of PD. However, the exact mechanisms by which inflammation damages dopaminergic neurons in PD are still unclear. Therefore, we generated a MPTP-induced PD mouse model and performed spatial transcriptomic sequencing to provide more insight into the process of PD development at specific brain regions. Our results indicate that the pathological changes of PD are mainly manifested in the midbrain, especially in the substantia nigra region, with significant reductions in oligodendrocytes and Agt-labeled astrocytes and an increase in Gfap-labeled astrocytes. Macrophages displayed an increasing trend in the PD environment, indicating a pattern of immune modulation induced by PD. Moreover, pathway analysis revealed significant impairments in ion migration ability, abnormal Ca2+ channels, cAMP signaling, and synaptic damage in PD. Significant downregulation of Mt1 and Mt2 and upregulation of Atp1b2, Gpi1, and Cox6a1 in PD further underscored the occurrence of intense inflammation and immune alterations. On the basis of these findings, we have validated the significant accumulation of Ca2+ in the midbrain tissue in the PD environment by measuring its content. Additionally, we have demonstrated a close association between the reduction of dopaminergic neurons, represented by the midbrain region, and ferroptosis by evaluating the iron content, malondialdehyde (MDA) levels, and the protein expression of GPX4 and TH in the tissue. We propose the hypothesis that PD-related inflammation and immune changes can induce neuronal and oligodendrocyte damage through the induction of ferroptosis, thereby further accelerating the progression of PD.
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Affiliation(s)
- Sen Zhang
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China
| | - Yifan Geng
- Xuzhou Clinical School, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Xing Jiang
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China
| | - Zhiyuan Sun
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China
| | - Min Yan
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China
| | - Jun Bi
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China
| | - Xuewen Tian
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China.
| | - Qinglu Wang
- Graduate School of Education, Shandong Sport University, Jinan, Shandong 250102, China.
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Nelke A, García-López S, Caso JR, Pereira MP. The therapeutic use of clonal neural stem cells in experimental Parkinson´s disease. Stem Cell Res Ther 2024; 15:356. [PMID: 39385216 PMCID: PMC11465761 DOI: 10.1186/s13287-024-03965-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 09/30/2024] [Indexed: 10/12/2024] Open
Abstract
BACKGROUND Parkinson´s disease (PD), the second most common neurodegenerative disease in the world, is characterized by the death or impairment of dopaminergic neurons (DAn) in the substantia nigra pars compacta and dopamine depletion in the striatum. Currently, there is no cure for PD, and treatments only help to reduce the symptoms of the disease, and do not repair or replace the DAn damaged or lost in PD. Cell replacement therapy (CRT) seeks to relieve both pathological and symptomatic PD manifestations and has been shown to have beneficial effects in experimental PD models as well as in PD patients, but an apt cell line to be used in the treatment of PD has yet to be established. The purpose of this study was to examine the effects of the transplantation of hVM1 clone 32 cells, a bankable line of human neural stem cells (hNSCs), in a PD mouse model at four months post-transplant. METHODS Adult (five month-old) C57BL/6JRccHsd male mice were injected with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine and subsequently transplanted with hVM1 clone 32 cells, or buffer, in the left striatum. Four months post-transplant, behavioral effects were explored using the open field and paw print tests, and histological analyses were performed. RESULTS Transplantation of hVM1 clone 32 cells rescued dopaminergic nigrostriatal populations in adult Parkinsonian mice. Motor and neurological deterioration were observed in buffer-treated mice, the latter of which had a tendency to improve in hNSC-transplanted mice. Detection of mast cell migration to the superficial cervical lymph nodes in cell-transplanted mice denoted a peripheral effect. Transplantation of hNSCs also rescued neuroblast neurogenesis in the subgranular zone, which was correlated with dopaminergic recovery and is indicative of local recovery mechanisms. CONCLUSIONS In this proof-of-concept study, the transplantation of hVM1 clone 32 cells provided neuroprotection in adult Parkinsonian mice by restoring the dopaminergic nigrostriatal pathway and hippocampal neurogenesis, demonstrating the efficacy of cell replacement therapy as a treatment for PD.
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Affiliation(s)
- Anna Nelke
- Unit of Molecular Neuropathology, Physiological and pathological processes Program, Centro de Biología Molecular Severo Ochoa UAM-CSIC, Calle Nicolás Cabrera, 1, Madrid, 28049, Spain.
- Department of Molecular Biology, Faculty of Science, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, Madrid, 28049, Spain.
- Institute for Molecular Biology - IUBM (Universidad Autónoma de Madrid), Madrid, Spain.
| | - Silvia García-López
- Unit of Molecular Neuropathology, Physiological and pathological processes Program, Centro de Biología Molecular Severo Ochoa UAM-CSIC, Calle Nicolás Cabrera, 1, Madrid, 28049, Spain
- Department of Molecular Biology, Faculty of Science, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, Madrid, 28049, Spain
- Institute for Molecular Biology - IUBM (Universidad Autónoma de Madrid), Madrid, Spain
| | - Javier R Caso
- Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Centro de Investigación Biomédica en Red de Salud Mental, Instituto de Salud Carlos III (CIBERSAM, ISCIII), Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Instituto Universitario de Investigación Neuroquímica (IUIN-UCM), Avda. Complutense s/n, Madrid, 28040, Spain
| | - Marta P Pereira
- Unit of Molecular Neuropathology, Physiological and pathological processes Program, Centro de Biología Molecular Severo Ochoa UAM-CSIC, Calle Nicolás Cabrera, 1, Madrid, 28049, Spain.
- Department of Molecular Biology, Faculty of Science, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, Madrid, 28049, Spain.
- Institute for Molecular Biology - IUBM (Universidad Autónoma de Madrid), Madrid, Spain.
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Zhang H, Jiao L, Yang S, Li H, Jiang X, Feng J, Zou S, Xu Q, Gu J, Wang X, Wei B. Brain-computer interfaces: the innovative key to unlocking neurological conditions. Int J Surg 2024; 110:5745-5762. [PMID: 39166947 PMCID: PMC11392146 DOI: 10.1097/js9.0000000000002022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024]
Abstract
Neurological disorders such as Parkinson's disease, stroke, and spinal cord injury can pose significant threats to human mortality, morbidity, and functional independence. Brain-Computer Interface (BCI) technology, which facilitates direct communication between the brain and external devices, emerges as an innovative key to unlocking neurological conditions, demonstrating significant promise in this context. This comprehensive review uniquely synthesizes the latest advancements in BCI research across multiple neurological disorders, offering an interdisciplinary perspective on both clinical applications and emerging technologies. We explore the progress in BCI research and its applications in addressing various neurological conditions, with a particular focus on recent clinical studies and prospective developments. Initially, the review provides an up-to-date overview of BCI technology, encompassing its classification, operational principles, and prevalent paradigms. It then critically examines specific BCI applications in movement disorders, disorders of consciousness, cognitive and mental disorders, as well as sensory disorders, highlighting novel approaches and their potential impact on patient care. This review reveals emerging trends in BCI applications, such as the integration of artificial intelligence and the development of closed-loop systems, which represent significant advancements over previous technologies. The review concludes by discussing the prospects and directions of BCI technology, underscoring the need for interdisciplinary collaboration and ethical considerations. It emphasizes the importance of prioritizing bidirectional and high-performance BCIs, areas that have been underexplored in previous reviews. Additionally, we identify crucial gaps in current research, particularly in long-term clinical efficacy and the need for standardized protocols. The role of neurosurgery in spearheading the clinical translation of BCI research is highlighted. Our comprehensive analysis presents BCI technology as an innovative key to unlocking neurological disorders, offering a transformative approach to diagnosing, treating, and rehabilitating neurological conditions, with substantial potential to enhance patients' quality of life and advance the field of neurotechnology.
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Affiliation(s)
- Hongyu Zhang
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
- Harbin Medical University, Harbin
| | - Le Jiao
- Department of Neurosurgery, The First Hospital of Qiqihar, Qiqihar, Heilongjiang Province
| | | | | | | | - Jing Feng
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
- Harbin Medical University, Harbin
| | - Shuhuai Zou
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
- Harbin Medical University, Harbin
| | - Qiang Xu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
- Harbin Medical University, Harbin
| | - Jianheng Gu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
- Harbin Medical University, Harbin
| | - Xuefeng Wang
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University
| | - Baojian Wei
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, People's Republic of China
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Guimarães RP, de Resende MCS, Tavares MM, Belardinelli de Azevedo C, Ruiz MCM, Mortari MR. Construct, Face, and Predictive Validity of Parkinson's Disease Rodent Models. Int J Mol Sci 2024; 25:8971. [PMID: 39201659 PMCID: PMC11354451 DOI: 10.3390/ijms25168971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/09/2024] [Accepted: 08/13/2024] [Indexed: 09/02/2024] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease globally. Current drugs only alleviate symptoms without halting disease progression, making rodent models essential for researching new therapies and understanding the disease better. However, selecting the right model is challenging due to the numerous models and protocols available. Key factors in model selection include construct, face, and predictive validity. Construct validity ensures the model replicates pathological changes seen in human PD, focusing on dopaminergic neurodegeneration and a-synuclein aggregation. Face validity ensures the model's symptoms mirror those in humans, primarily reproducing motor and non-motor symptoms. Predictive validity assesses if treatment responses in animals will reflect those in humans, typically involving classical pharmacotherapies and surgical procedures. This review highlights the primary characteristics of PD and how these characteristics are validated experimentally according to the three criteria. Additionally, it serves as a valuable tool for researchers in selecting the most appropriate animal model based on established validation criteria.
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Affiliation(s)
- Rayanne Poletti Guimarães
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
| | - Maria Clara Souza de Resende
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
| | - Miguel Mesquita Tavares
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
| | - Caio Belardinelli de Azevedo
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
| | - Miguel Cesar Merino Ruiz
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
- Neurological Rehabilitation Unit, Sarah Network of Rehabilitation Hospitals, Brasília 70335-901, Brazil
| | - Márcia Renata Mortari
- Neuropharma Lab, Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília 70910-900, Brazil; (R.P.G.); (M.C.S.d.R.); (M.M.T.); (C.B.d.A.); (M.C.M.R.)
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6
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Li L, Zhang Y, Chen Z, Xu C, Xu Z, Pei H, Wang W, Yao R, Hao C. Cytarabine prevents neuronal damage by enhancing AMPK to stimulate PINK1 / Parkin-involved mitophagy in Parkinson's disease model. Eur J Pharmacol 2024; 977:176743. [PMID: 38880222 DOI: 10.1016/j.ejphar.2024.176743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/16/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Parkinson's disease (PD) is a common age-related neurodegenerative disorder, which may be largely due to the mitochondrial dysfunction and impaired mitophagy. Thus, it is of great importance to seek novel therapeutic strategies for PD targeting mitochondrial function and mitophagy. Cytarabine is a marine-derived antimetabolite used in the treatment of acute leukemia, which is also used in the study of the nervous system. In this study, we found that cytarabine pretreatment significantly inhibited the apoptosis and necrosis in the ROT-induced SH-SY5Y cell PD model and reduced the oxidative stress, as evidenced by the reduced MDA levels and the increased levels of SOD, GSH, and total antioxidant capacity. Cytarabine can also enhance mitochondrial vitality, improve mitochondrial respiratory function, and preserve mitochondrial morphology. Cytarabine also enhanced the expression of the mitophagy-related proteins PINK1, Parkin, VDAC1, and DJ-1, and its actions can be reversed by treatment with AMPK inhibitor - Compound C (CC), suggesting that AMPK activation may be involved in cytarabine-enhanced mitophagy. Furthermore, cytarabine can also ameliorate the motor symptoms in the MPTP-induced PD-like mice model, and attenuate the neuropathy in the substantia nigra (SN) of PD mice, while Compound C antagonized cytarabine's beneficial effects. In summary, marine-derived compound cytarabine could resist neurological damage both in vitro and in vivo by activating AMPK to increase PINK1/Parkin-induced mitophagy, serving as a promising disease modulator for treating neurodegenerative disease.
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Affiliation(s)
- Lanxin Li
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yang Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Zhengqian Chen
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Can Xu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China; Key Laboratory of Marine Drugs, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Zhongqiu Xu
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China; Key Laboratory of Marine Drugs, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Haitao Pei
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Wei Wang
- Key Laboratory of Marine Drugs, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Ruyong Yao
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Cui Hao
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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7
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Guzmán-Sastoque P, Sotelo S, Esmeral NP, Albarracín SL, Sutachan JJ, Reyes LH, Muñoz-Camargo C, Cruz JC, Bloch NI. Assessment of CRISPRa-mediated gdnf overexpression in an In vitro Parkinson's disease model. Front Bioeng Biotechnol 2024; 12:1420183. [PMID: 39175618 PMCID: PMC11338903 DOI: 10.3389/fbioe.2024.1420183] [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: 04/19/2024] [Accepted: 07/25/2024] [Indexed: 08/24/2024] Open
Abstract
Introduction Parkinson's disease (PD) presents a significant challenge in medical science, as current treatments are limited to symptom management and often carry significant side effects. Our study introduces an innovative approach to evaluate the effects of gdnf overexpression mediated by CRISPRa in an in vitro model of Parkinson's disease. The expression of gdnf can have neuroprotective effects, being related to the modulation of neuroinflammation and pathways associated with cell survival, differentiation, and growth. Methods We have developed a targeted delivery system using a magnetite nanostructured vehicle for the efficient transport of genetic material. This system has resulted in a substantial increase, up to 200-fold) in gdnf expression in an In vitro model of Parkinson's disease using a mixed primary culture of astrocytes, neurons, and microglia. Results and Discussion The delivery system exhibits significant endosomal escape of more than 56%, crucial for the effective delivery and activation of the genetic material within cells. The increased gdnf expression correlates with a notable reduction in MAO-B complex activity, reaching basal values of 14.8 μU/μg of protein, and a reduction in reactive oxygen species. Additionally, there is up to a 34.6% increase in cell viability in an In vitro Parkinson's disease model treated with the neurotoxin MPTP. Our study shows that increasing gdnf expression can remediate some of the cellular symptoms associated with Parkinson's disease in an in vitro model of the disease using a novel nanostructured delivery system.
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Affiliation(s)
| | - Sebastián Sotelo
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
| | - Natalia P. Esmeral
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
| | - Sonia Luz Albarracín
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Jhon-Jairo Sutachan
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Luis H. Reyes
- Department of Chemical and Food Engineering, Grupo de Diseño de Productos y Procesos (GDPP), Universidad de los Andes, Bogotá, Colombia
| | | | - Juan C. Cruz
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
- Department of Chemical and Food Engineering, Grupo de Diseño de Productos y Procesos (GDPP), Universidad de los Andes, Bogotá, Colombia
| | - Natasha I. Bloch
- Biomedical Engineering Department, Universidad de los Andes, Bogotá, Colombia
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Lau K, Kotzur R, Richter F. Blood-brain barrier alterations and their impact on Parkinson's disease pathogenesis and therapy. Transl Neurodegener 2024; 13:37. [PMID: 39075566 PMCID: PMC11285262 DOI: 10.1186/s40035-024-00430-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 07/11/2024] [Indexed: 07/31/2024] Open
Abstract
There is increasing evidence for blood-brain barrier (BBB) alterations in Parkinson's disease (PD), the second most common neurodegenerative disorder with rapidly rising prevalence. Altered tight junction and transporter protein levels, accumulation of α-synuclein and increase in inflammatory processes lead to extravasation of blood molecules and vessel degeneration. This could result in a self-perpetuating pathophysiology of inflammation and BBB alteration, which contribute to neurodegeneration. Toxin exposure or α-synuclein over-expression in animal models has been shown to initiate similar pathologies, providing a platform to study underlying mechanisms and therapeutic interventions. Here we provide a comprehensive review of the current knowledge on BBB alterations in PD patients and how rodent models that replicate some of these changes can be used to study disease mechanisms. Specific challenges in assessing the BBB in patients and in healthy controls are discussed. Finally, a potential role of BBB alterations in disease pathogenesis and possible implications for therapy are explored. The interference of BBB alterations with current and novel therapeutic strategies requires more attention. Brain region-specific BBB alterations could also open up novel opportunities to target specifically vulnerable neuronal subpopulations.
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Affiliation(s)
- Kristina Lau
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany
- Center for Systems Neuroscience, Hannover, Germany
| | - Rebecca Kotzur
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany
| | - Franziska Richter
- Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover, Foundation, Bünteweg 17, 30559, Hannover, Germany.
- Center for Systems Neuroscience, Hannover, Germany.
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9
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Ren J, Liu T, You L, Hu M, Zhu J, Wang X, Zhang H, Zhang J, Li Z, Wei S, Geng X. Time association study on a sub-acute mouse model of Parkinson's disease. Heliyon 2024; 10:e34082. [PMID: 39071603 PMCID: PMC11283032 DOI: 10.1016/j.heliyon.2024.e34082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024] Open
Abstract
Parkinson's disease (PD) is a severe neurodegenerative disease that disturbs human health. In the laboratory researches about PD, the mice model induced by intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was widely used. However, there has been controversy about the model effectiveness to simulate PD symptoms and pathology, and the time-varying development of behavioral and pathological characteristic after MPTP treatment remains unclear. In order to solve these problems, we designed a series of experiments to evaluate this PD model at different time points. We constructed the subacute PD mouse model by intraperitoneal injection of MPTP for 5 consecutive days. The rotarod test, open field test and the immunohistochemical staining of tyrosine hydroxylase were conducted at -5, 1, 5, 7, 14, 21 and 28 days after the last injection of MPTP. The results showed that 5 days after the last MPTP administration, typical motor disorders with significant balance function damage in rotarod test began to appear and remained stable throughout the entire experiment. Simultaneously, we also observed the loss of tyrosine hydroxylase (TH) positive cells in the substantia nigra compacta and reduction of TH content in the striatum but this pathological change in the substantia nigra compacta reversed 21 days after injection. Besides, the spontaneous movement of mice in open field test remained unchanged by MPTP. This research indicated the time-dependence of MPTP neurotoxicity that impair the motor function and histological features and confirmed the symptom occurrence time after MPTP injection, which provides a reference for the future research about MPTP-induced PD.
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Affiliation(s)
- Jinfeng Ren
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Tongzheng Liu
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Luyan You
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Minghui Hu
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Jianping Zhu
- College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Xinyu Wang
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Hao Zhang
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Jiayu Zhang
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Zifa Li
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Sheng Wei
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Xiwen Geng
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- High Level Key Disciplines of Traditional Chinese Medicine: Basic Theory of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Shandong Provincial Engineering Research Center for the Prevention and Treatment of Major Brain Diseases with Traditional Chinese Medicine (PTMBD), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
- Chinese Medicine and Brain Science Interdisciplinary Research Center (CMBS), Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
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10
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Thong-Asa W, Wassana C, Sukkasem K, Innoi P, Dechakul M, Timda P. Neuroprotective effect of gallic acid in mice with rotenone-induced neurodegeneration. Exp Anim 2024; 73:259-269. [PMID: 38296489 PMCID: PMC11254496 DOI: 10.1538/expanim.23-0165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/24/2024] [Indexed: 07/12/2024] Open
Abstract
We investigated the effect of gallic acid (Gal) against neurodegenerative pathophysiology relevant to Parkinsion's disease (PD) in mice with rotenone-induced toxicity. Forty male institute of cancer research (ICR) mice were randomly divided into four groups: sham-veh, PD-veh (received subcutaneous injection with 2.5 mg/kg/48 h of rotenone); PD-Gal50; and PD-Gal100 (the latter two groups received subcutaneous injection with 2.5 mg/kg/48 h of rotenone and oral gavage with gallic acid 50 and 100 mg/kg/48 h, respectively). All treatments continued for 5 weeks with motor ability assessments once per week using hanging and rotarod tests. Brain tissue evaluation of oxidative status, together with striatal and substantia nigra par compacta (SNc) histological and immunohistological assessments were performed. The results indicate that rotenone significantly induced muscle weakness and motor coordination deficit from the first week of rotenone injection, and a significant increase in neuronal degeneration was presented in both the striatum and SNc. Decreased tyrosine hydroxylase and increment of glia fibrillary acidic protein expression in SNc were depicted. The deteriorating effects of rotenone were ameliorated by gallic acid treatment, especially 100 mg/kg dose. Rotenone did not induce a significant change of lipid peroxidation indicated, but gallic acid exhibited a significant inhibitory effect on the lipid peroxidation increment. Rotenone showed a significant reduction of superoxide dismutase activity, and neither 50 nor 100 mg/kg of gallic acid could alleviate this enzyme activity. In conclusion, gallic acid ameliorated motor deficits and preserving SNc neurons which led to maintaining of the dopaminergic source, including a nurturing effect on supporting astrocytes in mice with rotenone-induced neurodegeneration.
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Affiliation(s)
- Wachiryah Thong-Asa
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
| | - Chatrung Wassana
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
| | - Kunyarat Sukkasem
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
| | - Pichcha Innoi
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
| | - Montira Dechakul
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
| | - Pattraporn Timda
- Animal Toxicology and Physiology Specialty Research Unit (ATPSRU), Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Jatujak, Bangkok 10900, Thailand
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11
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Mansour HM, Mohamed AF, Khattab MM, El-Khatib AS. Unveiling the therapeutic prospects of EGFR inhibition in rotenone-mediated parkinsonism in rats: Modulation of dopamine D3 receptor. Brain Res 2024; 1834:148893. [PMID: 38554797 DOI: 10.1016/j.brainres.2024.148893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/01/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Parkinson's disease (PD) is characterized by the progressive loss of dopaminergic neurons in the substantia nigra. The dopamine D3 receptor (D3R) plays a significant role in the pathogenesis and treatment of PD. Activation of receptor tyrosine kinases (RTKs) inhibits signaling mediated by G protein-coupled receptor (GPCR). Epidermal growth factor receptors (EGFRs) and dopamine D3 receptors in the brain are directly associated with PD, both in terms of its development and potential treatment. Therefore, we investigated the impact of modulating the EGFR, a member of the RTKs family, and the dopamine D3R, a member of the GPCR family. In the present study, 100 mg/kg of lapatinib (LAP) was administered to rotenone-intoxicated rats for three weeks. Our findings indicate that LAP effectively alleviated motor impairment, improved histopathological abnormalities, and restored dopaminergic neurons in the substantia nigra. This restoration was achieved through the upregulation of dopamine D3R and increase of tyrosine hydroxylase (TH) expression, as well as boosting dopamine levels. Furthermore, LAP inhibited the activity of p-EGFR, GRK2, and SCR. Additionally, LAP exhibited antioxidant properties by inhibiting the 4-hydroxynonenal (4-HNE) and PLCγ/PKCβII pathway, while enhancing the antioxidant defense mechanism by increasing GSH-GPX4 pathway. The current study offers insights into the potential repositioning of LAP as a disease-modifying drug for PD. This could be achieved by modulating the dopaminergic system and curbing oxidative stress.
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Affiliation(s)
- Heba M Mansour
- Central Administration of Biologicals, Innovative Products, and Clinical Studies, Egyptian Drug Authority, EDA, Giza, Egypt
| | - Ahmed F Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Faculty of Pharmacy, King Salman International University (KSIU), South Sinai 46612, Egypt.
| | - Mahmoud M Khattab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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12
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Mou J, Ning XL, Wang XY, Hou SY, Meng FB, Zhou C, Wu JW, Li C, Jia T, Wu X, Wu Y, Chen Y, Li GB. X-ray Structure-Guided Discovery of a Potent Benzimidazole Glutaminyl Cyclase Inhibitor That Shows Activity in a Parkinson's Disease Mouse Model. J Med Chem 2024; 67:8730-8756. [PMID: 38817193 DOI: 10.1021/acs.jmedchem.4c00049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The secretory glutaminyl cyclase (sQC) and Golgi-resident glutaminyl cyclase (gQC) are responsible for N-terminal protein pyroglutamation and associated with various human diseases. Although several sQC/gQC inhibitors have been reported, only one inhibitor, PQ912, is currently undergoing clinic trials for the treatment of Alzheimer's disease. We report an X-ray crystal structure of sQC complexed with PQ912, revealing that the benzimidazole makes "anchor" interactions with the active site zinc ion and catalytic triad. Structure-guided design and optimization led to a series of new benzimidazole derivatives exhibiting nanomolar inhibition for both sQC and gQC. In a MPTP-induced Parkinson's disease (PD) mouse model, BI-43 manifested efficacy in mitigating locomotor deficits through reversing dopaminergic neuronal loss, reducing microglia, and decreasing levels of the sQC/gQC substrates, α-synuclein, and CCL2. This study not only offers structural basis and new leads for drug discovery targeting sQC/gQC but also provides evidence supporting sQC/gQC as potential targets for PD treatment.
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Affiliation(s)
- Jun Mou
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiang-Li Ning
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xin-Yue Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Shu-Yan Hou
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Fan-Bo Meng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Cong Zhou
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jing-Wei Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chunyan Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Tao Jia
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiaoai Wu
- Department of Nuclear Medicine, Laboratory of Clinical Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yongping Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guo-Bo Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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13
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Zhang B, Hu YB, Li G, Yu HX, Cui C, Han YY, Li HX, Li G. Itga5-PTEN signaling regulates striatal synaptic strength and motor coordination in Parkinson's disease. Int J Biol Sci 2024; 20:3302-3316. [PMID: 38993558 PMCID: PMC11234218 DOI: 10.7150/ijbs.96116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/06/2024] [Indexed: 07/13/2024] Open
Abstract
Background: Parkinson's disease (PD) is marked by the loss of dopaminergic neurons in the substantia nigra pars compacta, leading to motor and cognitive dysfunctions. The molecular mechanisms underlying synaptic alterations in PD remain elusive, with a focus on the role of Itga5 in synaptic integrity and motor coordination and TAT-Itga5 was designed to suppress PTEN activity in this investigation. Methods: This study utilized MPTP-induced PD animal models to investigate the expression and role of Itga5 in the striatum. Techniques included quantitative PCR, Western blotting, immunostaining, CRISPR-CasRx-mediated knockdown, electrophysiological assays, behavioral tests, and mass spectrometry. Results: Itga5 expression was significantly reduced in MPTP-induced PD models. In these models, a marked decrease in dendritic spine density and a shift towards thinner spines in striatal GABA neurons were observed, suggesting impaired synaptic integration. Knockdown of Itga5 resulted in reduced dendritic branching, decreased mushroom spines, and increased thin spines, altering synaptic architecture. Electrophysiological analyses revealed changes in action potential and spontaneous excitatory postsynaptic currents, indicating altered synaptic transmission. Motor behavior assessments showed that Itga5 deficiency led to impairments in fine motor control and coordination. Furthermore, Itga5 was found to interact with PTEN, affecting AKT signaling crucial for synaptic development and motor coordination. Conclusion: The study demonstrates that Itga5 plays a critical role in maintaining synaptic integrity and motor coordination in PD. The Itga5-PTEN-AKT pathway represents a potential therapeutic target for addressing synaptic and motor dysfunctions in PD.
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Affiliation(s)
- Bei Zhang
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Yong-Bo Hu
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Gen Li
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 20040, China
| | - Hong-Xiang Yu
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Can Cui
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Ying-Ying Han
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Hong-Xia Li
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Gang Li
- Department of Neurology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
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14
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Shen T, Cui G, Chen H, Huang L, Song W, Zu J, Zhang W, Xu C, Dong L, Zhang Y. TREM-1 mediates interaction between substantia nigra microglia and peripheral neutrophils. Neural Regen Res 2024; 19:1375-1384. [PMID: 37905888 PMCID: PMC11467918 DOI: 10.4103/1673-5374.385843] [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: 02/14/2023] [Revised: 03/22/2023] [Accepted: 05/29/2023] [Indexed: 11/02/2023] Open
Abstract
Microglia-mediated neuroinflammation is considered a pathological feature of Parkinson’s disease. Triggering receptor expressed on myeloid cell-1 (TREM-1) can amplify the inherent immune response, and crucially, regulate inflammation. In this study, we found marked elevation of serum soluble TREM-1 in patients with Parkinson’s disease that positively correlated with Parkinson’s disease severity and dyskinesia. In a mouse model of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson’s disease, we found that microglial TREM-1 expression also increased in the substantia nigra. Further, TREM-1 knockout alleviated dyskinesia in a mouse model of Parkinson’s disease and reduced dopaminergic neuronal injury. Meanwhile, TREM-1 knockout attenuated the neuroinflammatory response, dopaminergic neuronal injury, and neutrophil migration. Next, we established an in vitro 1-methyl-4-phenyl-pyridine-induced BV2 microglia model of Parkinson’s disease and treated the cells with the TREM-1 inhibitory peptide LP17. We found that LP17 treatment reduced apoptosis of dopaminergic neurons and neutrophil migration. Moreover, inhibition of neutrophil TREM-1 activation diminished dopaminergic neuronal apoptosis induced by lipopolysaccharide. TREM-1 can activate the downstream CARD9/NF-κB proinflammatory pathway via interaction with SYK. These findings suggest that TREM-1 may play a key role in mediating the damage to dopaminergic neurons in Parkinson’s disease by regulating the interaction between microglia and peripheral neutrophils.
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Affiliation(s)
- Tong Shen
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou, Jiangsu Province, China
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Guiyun Cui
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Hao Chen
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Long Huang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou, Jiangsu Province, China
| | - Wei Song
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou, Jiangsu Province, China
| | - Jie Zu
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Wei Zhang
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Chuanying Xu
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Liguo Dong
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Yongmei Zhang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou, Jiangsu Province, China
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15
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Wang Y, Wei L, Tan M, Yang Z, Gao B, Li J, Liu Y, Zikereya T, Shi K, Chen W. Aerobic exercise improves motor dysfunction in Parkinson's model mice via differential regulation of striatal medium spiny neuron. Sci Rep 2024; 14:12132. [PMID: 38802497 PMCID: PMC11130133 DOI: 10.1038/s41598-024-63045-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024] Open
Abstract
The striatum plays a crucial role in providing input to the basal ganglia circuit and is implicated in the pathological process of Parkinson's disease (PD). Disruption of the dynamic equilibrium in the basal ganglia loop can be attributed to the abnormal functioning of the medium spiny neurons (MSNs) within the striatum, potentially acting as a trigger for PD. Exercise has been shown to mitigate striatal neuronal dysfunction through neuroprotective and neurorestorative effects and to improve behavioral deficits in PD model mice. In addition, this effect is offset by the activation of MSNs expressing dopamine D2 receptors (D2-MSNs). In the current study, we investigated the underlying neurobiological mechanisms of this effect. Our findings indicated that exercise reduces the power spectral density of the beta-band in the striatum and decreases the overall firing frequency of MSNs, particularly in the case of striatal D2-MSNs. These observations were consistent with the results of molecular biology experiments, which revealed that aerobic training specifically enhanced the expression of striatal dopamine D2 receptors (D2R). Taken together, our results suggest that aerobic training aimed at upregulating striatal D2R expression to inhibit the functional activity of D2-MSNs represents a potential therapeutic strategy for the amelioration of motor dysfunction in PD.
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Affiliation(s)
- Yinhao Wang
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Longwei Wei
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Mingli Tan
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Zizheng Yang
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Bo Gao
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Juan Li
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Yang Liu
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Talifu Zikereya
- Department of Physical Education, China University of Geoscience, Beijing, China
| | - Kaixuan Shi
- Department of Physical Education, China University of Geoscience, Beijing, China.
| | - Wei Chen
- School of Physical Education, Hebei Normal University, Shijiazhuang, China.
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China.
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16
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Chen Y, Wu Z, Li S, Chen Q, Wang L, Qi X, Tian C, Yang M. Mapping the Research of Ferroptosis in Parkinson's Disease from 2013 to 2023: A Scientometric Review. Drug Des Devel Ther 2024; 18:1053-1081. [PMID: 38585257 PMCID: PMC10999190 DOI: 10.2147/dddt.s458026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/05/2024] [Indexed: 04/09/2024] Open
Abstract
Methods Related studies on PD and ferroptosis were searched in Web of Science Core Collection (WOSCC) from inception to 2023. VOSviewer, CiteSpace, RStudio, and Scimago Graphica were employed as bibliometric analysis tools to generate network maps about the collaborations between authors, countries, and institutions and to visualize the co-occurrence and trends of co-cited references and keywords. Results A total of 160 original articles and reviews related to PD and ferroptosis were retrieved, produced by from 958 authors from 162 institutions. Devos David was the most prolific author, with 9 articles. China and the University of Melbourne had leading positions in publication volume with 84 and 12 publications, respectively. Current hot topics focus on excavating potential new targets for treating PD based on ferroptosis by gaining insight into specific molecular mechanisms, including iron metabolism disorders, lipid peroxidation, and imbalanced antioxidant regulation. Clinical studies aimed at treating PD by targeting ferroptosis remain in their preliminary stages. Conclusion A continued increase was shown in the literature within the related field over the past decade. The current study suggested active collaborations among authors, countries, and institutions. Research into the pathogenesis and treatment of PD based on ferroptosis has remained a prominent topic in the field in recent years, indicating that ferroptosis-targeted therapy is a potential approach to halting the progression of PD.
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Affiliation(s)
- Yingfan Chen
- Medical School of Chinese People’s Liberation Army, Beijing, People’s Republic of China
- Department of Traditional Chinese Medicine, the Six Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, People’s Republic of China
| | - Zhenhui Wu
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, People’s Republic of China
| | - Shaodan Li
- Department of Traditional Chinese Medicine, the Six Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, People’s Republic of China
| | - Qi Chen
- Department of Traditional Chinese Medicine, the Six Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, People’s Republic of China
| | - Liang Wang
- Department of Traditional Chinese Medicine, the Six Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, People’s Republic of China
| | - Xiaorong Qi
- Medical School of Chinese People’s Liberation Army, Beijing, People’s Republic of China
| | - Chujiao Tian
- Medical School of Chinese People’s Liberation Army, Beijing, People’s Republic of China
| | - Minghui Yang
- Department of Traditional Chinese Medicine, the Six Medical Center of Chinese People’s Liberation Army General Hospital, Beijing, People’s Republic of China
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17
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Dong H, Zhang X, Duan Y, He Y, Zhao J, Wang Z, Wang J, Li Q, Fan G, Liu Z, Shen C, Zhang Y, Yu M, Fei J, Huang F. Hypoxia inducible factor-1α regulates microglial innate immune memory and the pathology of Parkinson's disease. J Neuroinflammation 2024; 21:80. [PMID: 38555419 PMCID: PMC10981320 DOI: 10.1186/s12974-024-03070-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
Neuroinflammation is one of the core pathological features of Parkinson's disease (PD). Innate immune cells play a crucial role in the progression of PD. Microglia, the major innate immune cells in the brain, exhibit innate immune memory effects and are recognized as key regulators of neuroinflammatory responses. Persistent modifications of microglia provoked by the first stimuli are pivotal for innate immune memory, resulting in an enhanced or suppressed immune response to second stimuli, which is known as innate immune training and innate immune tolerance, respectively. In this study, LPS was used to establish in vitro and in vivo models of innate immune memory. Microglia-specific Hif-1α knockout mice were further employed to elucidate the regulatory role of HIF-1α in innate immune memory and MPTP-induced PD pathology. Our results showed that different paradigms of LPS could induce innate immune training or tolerance in the nigrostriatal pathway of mice. We found that innate immune tolerance lasting for one month protected the dopaminergic system in PD mice, whereas the effect of innate immune training was limited. Deficiency of HIF-1α in microglia impeded the formation of innate immune memory and exerted protective effects in MPTP-intoxicated mice by suppressing neuroinflammation. Therefore, HIF-1α is essential for microglial innate immune memory and can promote neuroinflammation associated with PD.
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Affiliation(s)
- Hongtian Dong
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Xiaoshuang Zhang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Yufei Duan
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Yongtao He
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Jiayin Zhao
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Zishan Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Jinghui Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Qing Li
- School of Life Science and Technology, Tongji University, 1239 Shipping Road, Shanghai, 200092, China
| | - Guangchun Fan
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Zhaolin Liu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Chenye Shen
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Yunhe Zhang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China
| | - Mei Yu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China.
| | - Jian Fei
- School of Life Science and Technology, Tongji University, 1239 Shipping Road, Shanghai, 200092, China.
- Shanghai Engineering Research Center for Model Organisms, Shanghai Model Organisms Center, INC., Shanghai, 201203, China.
| | - Fang Huang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, 138 Yixueyuan Road, Shanghai, 200032, China.
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Olubodun-Obadun TG, Ishola IO, Folarin OR, Oladoja FA, Gilbert TT, Aniekwensi IM, Bisiriyu A, Joseph-Iwebi NA, Adebanjo FO, Olopade JO, Adeyemi OO. Cajanus cajan (L) Millsp seeds extract prevents rotenone-induced motor- and non-motor features of Parkinson disease in mice: Insight into mechanisms of neuroprotection. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117623. [PMID: 38128890 DOI: 10.1016/j.jep.2023.117623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cajanus cajan (L) Millsp (Fabaceae) seed decoction is used by traditional healers in Nigeria as nerve tonic, hence, could be beneficial in the treatment of Parkinson's disease (PD), a progressive and debilitating neurodegenerative disease that imposes great burden on the healthcare system globally. AIM OF THE STUDY This study aimed at investigating the neuroprotective effect of ethanol seed extract of Cajanus cajan (CC) in the treatment of rotenone-induced motor symptoms and non-motor symptoms associated with PD. MATERIALS AND METHODS To assess the protective action of CC on rotenone-induced motor- and non-motor symptoms of PD, mice were first pretreated with CC (50, 100 or 200 mg/kg, p.o.) an hour before oral administration of rotenone (1 mg/kg, p.o, 0.5% in carboxyl-methylcellulose) for 28 consecutive days and weekly behavioural tests including motor assessment (open field test (OFT), rotarod, pole and cylinder tests) and non-motor assessment (novel object recognition (NOR), Y-maze test (YM), forced swim and tail suspension, gastric emptying and intestinal fluid accumulation tests) were carried out. The animals were euthanized on day 28 followed by the collection of brain for assessment of oxidative stress, inflammatory markers and immunohistochemical analysis of the striatum (STR) and substantia nigra (SN). Phytochemicals earlier isolated from CC were docked with protein targets linked with PD pathology such as; catechol-O-methyltransferase (COMT), tyrosine hydroxylase (TH) and Leucine rich receptor kinase (LRRK). RESULTS this study showed that CC significantly reduced rotenone-induced spontaneous motor impairment in OFT, pole, cylinder and rotarod tests in mice as well as significant improvement in non-motor features (significant reversal of rotenone-induced deficits discrimination index and spontaneous alternation behaviour in NORT and YM test, respectively, reduction in immobility time in forced swim/tail suspension test, gastrointestinal disturbance in intestinal transit time in mice. Moreso, rotenone-induced neurodegeneration, oxidative stress and neuroinflammation were significantly attenuated by CC administration. In addition, docking analysis showed significant binding affinity of CC phytochemicals with COMT, TH and LRRK2 receptors. CONCLUSION Cajanus cajan seeds extract prevented both motor and non-motor features of Parkinson disease in mice through its antioxidant and anti-inflammatory effects. Hence, could be a potential phytotherapeutic adjunct in the management of Parkinson disease.
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Affiliation(s)
- Taiwo G Olubodun-Obadun
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria
| | - Ismail O Ishola
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria.
| | - Oluwabusayo R Folarin
- Department of Biomedical Laboratory Science, College of Medicine, University of Ibadan, Ibadan, Oyo state, Nigeria
| | - Farouk A Oladoja
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | | | - Ifunanya M Aniekwensi
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria
| | - Afolabi Bisiriyu
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria
| | - Nkem A Joseph-Iwebi
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria
| | - Foluke O Adebanjo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - James O Olopade
- Department of Veterinary Anatomy, University of Ibadan, Ibadan, Nigeria
| | - Olufunmilayo O Adeyemi
- Department of Pharmacology, Therapeutics, and Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos state, Nigeria
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19
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Niu B, Zhao M, Gao X, Xu J, Yu L. TMT-based quantitative proteomics analysis of neuroprotective effects of Forsythoside A on the MPTP-induced Parkinson's disease mouse model. Exp Neurol 2024; 373:114642. [PMID: 38056584 DOI: 10.1016/j.expneurol.2023.114642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/26/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Parkinson's disease (PD) is a prevalent neurodegenerative disorder characteristized by the presence of dyskinesia and the progressive loss of dopaminergic neurons. Although certain drugs can mitigate the symptoms of PD, they are unable to delay the disease progression, and their prolonged use may result in complications. Therefore, there exists an urgent necessity to identify potential agents that can effectively delay PD progression with fewer side effects. Recent research has unveiled that several traditional Chinese medicines (TCM) exhibit neuroprotective properties in various models pertinent to PD. Forsythoside A (FSA), the primary bioactive compound derived from TCM Lianqiao, has undergone extensive research in animal models of Alzheimer's disease and cerebral ischemia. However, the investigation into the impact of FSA on PD is limited in existing research. In this study, we aimed to evaluate the neuroprotective effects of FSA on MPTP-induced PD mouse model. FSA demonstrated significant improvements in the behavioral and neuropathological changes triggered by MPTP in mice. Furthermore, it exerted a suppressive effect on the activations of astrocyte and microglia. Meanwhile, Tandem mass tag (TMT)-based quantitative proteomics of striatal tissue and bioinformatics analysis were performed to elucidate the underlying mechanisms of FSA on PD mouse model. Proteomics demonstrated a total of 68 differentially expressed proteins (DEPs) were identified between HFSA and MPTP groups including 26 upregulated and 42 downregulated. Systematic bioinformatics analysis of the 68 DEPs illustrated that they were predominantly related to estrogen signaling pathway and calcium signaling pathway. The related DEPs (PLCβ4, Grm2, HPAC and Cox4i1) expression levels were verified by Western blot. FSA effectively restored the altered expression of the four DEPs induced by MPTP. Summarily, FSA exerted remarkable neuroprotective effects in MPTP-induced mice. Further, our research may provide proteomics insights that contribute to the further exploration of FSA as a potential treatment for PD.
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Affiliation(s)
- Bo Niu
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan 528000, China.
| | - Minhong Zhao
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan 528000, China.
| | - Xiu'an Gao
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan 528000, China.
| | - Jiangping Xu
- School of Pharmaceutical Sciences, Southern Medical University, Key Laboratory of Mental Health of the Ministry of Education, Guangzhou 510515, China.
| | - Linzhong Yu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
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20
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Pinjala P, Tryphena KP, Kulkarni A, Goswami PG, Khatri DK. Dimethyl Fumarate Exerts a Neuroprotective Effect by Enhancing Mitophagy via the NRF2/BNIP3/PINK1 Axis in the MPP + Iodide-Induced Parkinson's Disease Mice Model. J Alzheimers Dis Rep 2024; 8:329-344. [PMID: 38405353 PMCID: PMC10894611 DOI: 10.3233/adr-230128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/28/2023] [Indexed: 02/27/2024] Open
Abstract
Background Parkinson's disease (PD) is a progressive neurodegenerative disorder linked to the loss of dopaminergic neurons in the substantia nigra. Mitophagy, mitochondrial selective autophagy, is critical in maintaining mitochondrial and subsequently neuronal homeostasis. Its impairment is strongly implicated in PD and is associated with accelerated neurodegeneration. Objective To study the positive effect of dimethyl fumarate (DMF) on mitophagy via the NRF2/BNIP3/PINK1 axis activation in PD disease models. Methods The neuroprotective effect of DMF was explored in in vitro and in vivo PD models. MTT assay was performed to determine the DMF dose followed by JC-1 assay to study its mitoprotective effect in MPP+ exposed SHSY5Y cells. For the in vivo study, C57BL/6 mice were divided into six groups: Normal Control (NC), Disease Control (DC), Sham (Saline i.c.v.), Low Dose (MPP+ iodide+DMF 15 mg/kg), Mid Dose (MPP+ iodide+DMF 30 mg/kg), and High Dose (MPP+ iodide+DMF 60 mg/kg). The neuroprotective effect of DMF was assessed by performing rotarod, open field test, and pole test, and biochemical parameter analysis using immunofluorescence, western blot, and RT-PCR. Results DMF treatment significantly alleviated the loss of TH positive dopaminergic neurons and enhanced mitophagy by increasing PINK1, Parkin, BNIP3, and LC3 levels in the MPP+ iodide-induced PD mice model. DMF treatment groups showed good locomotor activity and rearing time when compared to the DC group. Conclusions DMF confers neuroprotection by activating the BNIP3/PINK1/Parkin pathway, enhancing the autophagosome formation via LC3, and improving mitophagy in PD models, and could be a potential therapeutic option in PD.
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Affiliation(s)
- Poojitha Pinjala
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Kamatham Pushpa Tryphena
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Amrita Kulkarni
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Prince Giri Goswami
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Dharmendra Kumar Khatri
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
- Department of Pharmacology, Shobhaben Pratapbai Patel School of Pharmacy and Technology Management, SVKM’s Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-be-University, Mumbai, India
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21
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Qian Q, Luo WL. A network pharmacology method explores the molecular mechanism of Coptis chinensis for the treatment of Alzheimer's disease. Medicine (Baltimore) 2024; 103:e37103. [PMID: 38306514 PMCID: PMC10843322 DOI: 10.1097/md.0000000000037103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/08/2024] [Indexed: 02/04/2024] Open
Abstract
To predict the molecular mechanisms of action of Coptis chinensis in the treatment of Alzheimer's disease using network pharmacology. The active ingredients and targets of Coptis chinensis were obtained from the Traditional Chinese Medicine System Pharmacology Database. Target information for Alzheimer's disease was screened using the GeneCard and OMIM databases. The Venn diagram tool was used to identify the intersecting targets of Coptis chinensis and Alzheimer's disease. The obtained target information was entered into the STRING database to construct a protein-protein interaction network. The R language was used to perform Gene ontology and Kyoto Encyclopedia of Genes and Genomes analyses of significant targets. Auto Dock Vina software was used for molecular docking. Fourteen effective active ingredients and 158 key targets associated with Coptis chinensis were identified. There were 1113 targets related to Alzheimer's disease genes. A drug-component-disease-target network was constructed and 84 key targets were identified for the treatment of Alzheimer's disease by Coptis chinensis. The main signaling pathways were the PI3K-Akt, AGE-RAGE, MAPK, HIF-1, TNF, and relaxin signaling pathways. The molecular docking results showed that berberine has a high affinity for Alzheimer's Disease. Coptis chinensis could play a multi-target and multi-pathway role against Alzheimer's disease, which has guiding significance for clinical research.
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Affiliation(s)
- Qian Qian
- Chengdu Shuangnan Hospital, Chengdu, China
| | - Wen Lan Luo
- Chengdu Public Health Clinical Medical Center, Chengdu, China
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22
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Lu H, Chai J, Xu Z, Wu J, He S, Liao H, Huang P, Huang X, Chen X, Jiang H, Qu S, Xu X. Cath-KP, a novel peptide derived from frog skin, prevents oxidative stress damage in a Parkinson's disease model. Zool Res 2024; 45:108-124. [PMID: 38114437 PMCID: PMC10839659 DOI: 10.24272/j.issn.2095-8137.2023.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/11/2023] [Indexed: 12/21/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative condition that results in dyskinesia, with oxidative stress playing a pivotal role in its progression. Antioxidant peptides may thus present therapeutic potential for PD. In this study, a novel cathelicidin peptide (Cath-KP; GCSGRFCNLFNNRRPGRLTLIHRPGGDKRTSTGLIYV) was identified from the skin of the Asiatic painted frog ( Kaloula pulchra). Structural analysis using circular dichroism and homology modeling revealed a unique αββ conformation for Cath-KP. In vitro experiments, including free radical scavenging and ferric-reducing antioxidant analyses, confirmed its antioxidant properties. Using the 1-methyl-4-phenylpyridinium ion (MPP +)-induced dopamine cell line and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD mice, Cath-KP was found to penetrate cells and reach deep brain tissues, resulting in improved MPP +-induced cell viability and reduced oxidative stress-induced damage by promoting antioxidant enzyme expression and alleviating mitochondrial and intracellular reactive oxygen species accumulation through Sirtuin-1 (Sirt1)/Nuclear factor erythroid 2-related factor 2 (Nrf2) pathway activation. Both focal adhesion kinase (FAK) and p38 were also identified as regulatory elements. In the MPTP-induced PD mice, Cath-KP administration increased the number of tyrosine hydroxylase (TH)-positive neurons, restored TH content, and ameliorated dyskinesia. To the best of our knowledge, this study is the first to report on a cathelicidin peptide demonstrating potent antioxidant and neuroprotective properties in a PD model by targeting oxidative stress. These findings expand the known functions of cathelicidins, and hold promise for the development of therapeutic agents for PD.
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Affiliation(s)
- Huanpeng Lu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jinwei Chai
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Zijian Xu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jiena Wu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Songzhe He
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Hang Liao
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Peng Huang
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiaowen Huang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xi Chen
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Haishan Jiang
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Shaogang Qu
- Department of Neurology, Ganzhou Hospital-Nanfang Hospital, Southern Medical University, Ganzhou, Jiangxi 341001, China
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Guangzhou, Guangdong 510515, China
- Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou, Guangdong 510515, China. E-mail:
| | - Xueqing Xu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China. E-mail:
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23
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Fu J, Gao X, Lu Y, Lu F, Wang Y, Chen P, Wang C, Yuan C, Liu S. Integrated proteomics and metabolomics reveals metabolism disorders in the α-syn mice and potential therapeutic effect of Acanthopanax senticosus extracts. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116878. [PMID: 37419226 DOI: 10.1016/j.jep.2023.116878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acanthopanax senticosus (Rupr.et.Maxim.)Harms(AS) is an extract of Eleutherococcus senticocus Maxim(Rupr.et.Maxim.). In modern medical interpretation, Acanthopanax senticosus can be used to treat Parkinson's disease, and a large number of modern pharmacological and clinical studies also support this application. Our study demonstrated that AS extracts can increase the activity of various antioxidant enzymes and improve the symptoms of Parkinson's disease in mice. AIM OF THE STUDY The current study looked at the protective effect of Acanthopanax senticosus extracts(ASE) in preventing PD. METHODS AND MATERIALS First, the α-syn-overexpressing mice were chosen as suitable models for Parkinson's disease in vivo. HE staining was used to observe the pathological changes in the substantia nigra. Meanwhile, TH expression in substantia nigra was analyzed by immunohistochemistry. Behavioral and biochemical tests evaluated neuroprotective effects of ASE on PD mice. Subsequently, combined with proteomics and metabolomics analysis, the changes in brain proteins and metabolites in mice treated with ASE for PD were studied. Finally, Western blot was used to detect metabolome-related and proteomic proteins in the brain tissue of α-syn mice. RESULTS Forty-nine common differentially expressed proteins were screened by proteomics analysis, among which 28 were significantly up-regulated,and 21 were significantly down-regulated. Metabolomics analysis showed that twenty-five potentially important metabolites were involved in the therapeutic effect of ASE on PD. Most of the different proteins and metabolites were considered to be enriched in a variety of species in metabolic pathways, including glutathione metabolism and alanine aspartate and glutamate metabolism and other pathways, which means that ASE may have molecular mechanisms to ameliorate PD dysfunction. In addition, we found that decreases in glutathione and glutathione disulfide levels may play a critical role in these systemic changes and warrant further investigation. In the glutathione metabolic pathway, ASE also acts on GPX4, GCLC and GCLM. CONCLUSIONS ASE can effectively relieve behavioral symptoms of α-syn mice and relieve oxidative stress in brain tissue. These findings suggest that ASE offers a potential solution to target these pathways for the treatment of PD.
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Affiliation(s)
- Jiaqi Fu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Xin Gao
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Yi Lu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Fang Lu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Yu Wang
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Pingping Chen
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Chongzhi Wang
- Tang Center for Herbal Medicine Research, Department of Anesthesia and Critical Care, University of Chicago, Chicago, IL, 60637, USA
| | - Chunsu Yuan
- Tang Center for Herbal Medicine Research, Department of Anesthesia and Critical Care, University of Chicago, Chicago, IL, 60637, USA
| | - Shumin Liu
- Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China.
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24
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Ma XZ, Chen LL, Qu L, Li H, Wang J, Song N, Xie JX. Gut microbiota-induced CXCL1 elevation triggers early neuroinflammation in the substantia nigra of Parkinsonian mice. Acta Pharmacol Sin 2024; 45:52-65. [PMID: 37674043 PMCID: PMC10770039 DOI: 10.1038/s41401-023-01147-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/25/2023] [Indexed: 09/08/2023] Open
Abstract
Gut microbiota disturbance and systemic inflammation have been implicated in the degeneration of dopaminergic neurons in Parkinson's disease (PD). How the alteration of gut microbiota results in neuropathological events in PD remains elusive. In this study, we explored whether and how environmental insults caused early neuropathological events in the substantia nigra (SN) of a PD mouse model. Aged (12-month-old) mice were orally administered rotenone (6.25 mg·kg-1·d-1) 5 days per week for 2 months. We demonstrated that oral administration of rotenone to ageing mice was sufficient to establish a PD mouse model and that microglial activation and iron deposition selectively appeared in the SN of the mice prior to loss of motor coordination and dopaminergic neurons, and these events could be fully blocked by microglial elimination with a PLX5622-formulated diet. 16 S rDNA sequencing analysis showed that the gut microbiota in rotenone-treated mice was altered, and mice receiving faecal microbial transplantation (FMT) from ageing mice treated with rotenone for 2 months exhibited the same pathology in the SN. We demonstrated that C-X-C motif chemokine ligand-1 (CXCL1) was an essential molecule, as intravenous injection of CXCL1 mimicked almost all the pathology in serum and SN induced by oral rotenone and FMT. Using metabolomics and transcriptomics analyses, we identified the PPAR pathway as a key pathway involved in rotenone-induced neuronal damage. Inhibition of the PPARγ pathway was consistent in the above models, whereas its activation by linoleic acid (60 mg·kg-1·d-1, i.g. for 1 week) could block these pathological events in mice intravenously injected with CXCL1. Altogether, these results reveal that the altered gut microbiota resulted in neuroinflammation and iron deposition occurring early in the SN of ageing mice with oral administration of rotenone, much earlier than motor symptoms and dopaminergic neuron loss. We found that CXCL1 plays a crucial role in this process, possibly via PPARγ signalling inhibition. This study may pave the way for understanding the "brain-gut-microbiota" molecular regulatory networks in PD pathogenesis. The aged C57BL/6 male mice with rotenone intragastric administration showed altered gut microbiota, which caused systemic inflammation, PPARγ signalling inhibition and neuroinflammation, brain iron deposition and ferroptosis, and eventually dopaminergic neurodegeneration in PD.
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Affiliation(s)
- Xi-Zhen Ma
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China
| | - Lei-Lei Chen
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China
| | - Le Qu
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China
| | - Hui Li
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China
| | - Jun Wang
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China
| | - Ning Song
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China.
| | - Jun-Xia Xie
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266021, China.
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25
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Panda SR, Panja P, Soni U, Naidu VGM. Neurobehavioral Analysis to Assess Olfactory and Motor Dysfunction in Parkinson's Disease. Methods Mol Biol 2024; 2761:511-528. [PMID: 38427259 DOI: 10.1007/978-1-0716-3662-6_35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative condition, primarily affecting dopaminergic neurons. It is defined by motor impairments, such as bradykinesia, stiffness, resting tremor, and postural instability. The striatum, a structure essential for motor control, is impaired in function due to the significant loss of dopaminergic neurons in the substantia nigra and the development of Lewy bodies in the surviving nigral dopaminergic neurons. Olfactory impairment is one of the earliest indications of neurodegenerative disorders like PD that appear years before motor symptoms and cognitive decline development. Olfactory dysfunction is the most common nonmotor PD sign in at least 90% of cases, frequently occurring 5-10 years before motor disturbances. Surprisingly, even though olfactory impairment is intimately linked to PD and is thought to be a potential biomarker, little is known about the brain process underlying this failure. Exposure to environmental toxins has been linked to olfactory dysfunction, leading to nigral neurodegeneration and loss of motor functions. Behavioral neuroscience plays a significant role in identifying and characterizing these olfactory and motor symptoms. In preclinical research, novel treatment approaches are being evaluated in rodent models by behavioral phenotyping to ensure their efficacy. This chapter describes neurobehavioral analysis to assess olfactory and motor dysfunction in rodent models of Parkinson's disease.
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Affiliation(s)
- Samir Ranjan Panda
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India
| | - Pallabi Panja
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India
| | - Ujjawal Soni
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India
| | - V G M Naidu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
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Xu W, Dai Y. Lipid Carrier Nanostructured Astilbin Ameliorates Rotenone-Induced Neurodegeneration in Mice Brain via Modulation of GSK3β-Nrf2 Signaling Pathways. J Oleo Sci 2024; 73:371-387. [PMID: 38433001 DOI: 10.5650/jos.ess23173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Astilbin is a flavanonol, found in St John's wort (Hypericum perforatum) and many other plants. It has been demonstrated that astilbin contains anti-inflammatory, antioxidant, and immune-suppressive properties. However, the bioavailability of astilbin remains a question for which drug delivery-based nanoparticles can be utilized. We formulated a nanostructured lipid carrier loaded with astilbin (NLC-AS) and tested its effects on the rotenone exposed PC12 cells and in a neurodegenerative mice model of Parkinson's disease (PD) induced by rotenone. Results show that rotenone caused dose-dependent inhibition of PC12 cell growth with about 50% cell death at 2 µM rotenone. Rotenone caused apoptosis in PC12 cells which was reduced to a notable level by NLC-AS through suppression of oxidative stress, especially via elevation of GSH and total antioxidant capacity, and inhibition of monoamine oxidase. Rotenone significantly augmented neurodegeneration in mouse brains by triggering apoptosis and oxidative damage, while NLC-AS treatment halted these processes. Rotenone-exposed mice showed neuronal deficits and impaired neurocognitive functions like loss of memory and learning restrictions which were restored to a remarkable level by NLC-AS administration. The protective effect of NLC-AS was mediated through the inhibition of GSK3β and induction of Nrf2 genes in the brain tissues. These findings suggest that NLC-AS administration may efficiently regulate the signs of PD in mice and prevent neurodegeneration and neurocognitive dysfunctions.
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Affiliation(s)
- Wenyuan Xu
- Department of Acupuncture, First Affiliated Hospital, Heilongjiang University of Chinese Medicine
| | - You Dai
- The Fourth Departments of Cardiovascular Disease First Affiliated Hospital, Heilongjiang University of Chinese Medicine
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27
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Park M, Ha J, Lee Y, Choi HS, Kim BS, Jeong YK. Low-moderate dose whole-brain γ-ray irradiation modulates the expressions of glial fibrillary acidic protein and intercellular adhesion molecule-1 in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson's disease mouse model. Neurobiol Aging 2023; 132:175-184. [PMID: 37837733 DOI: 10.1016/j.neurobiolaging.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/22/2023] [Accepted: 06/24/2023] [Indexed: 10/16/2023]
Abstract
The anti-inflammatory efficacy of radiation therapy (RT) with single fractions below 1.0 Gy has been demonstrated in Alzheimer's disease mouse models. As neuroinflammation is also a major pathological feature of Parkinson's disease (PD), RT may also be effective in PD treatment. Therefore, this study aimed to investigate the anti-inflammatory effect of low-moderate dose RT (LMDRT, 0.6 Gy/single dose, for 5 days) exposure in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP; 30 mg/kg, intraperitoneally, for 5 consecutive days)-induced PD mouse model. Importantly, LMDRT reduced the levels of glial fibrillary acidic protein and intercellular adhesion molecule-1 (CD54) in the striatum region, which increased following MPTP administration. LMDRT also modulated inflammatory gene expression patterns in the substantia nigra region of the MPTP-treated mice. However, LMDRT had no direct effects on the severe loss of dopaminergic neurons and impaired motor behavior in the rotarod test. These results indicate that LMDRT has anti-inflammatory effects by modulating neuroinflammatory factors, including glial fibrillary acidic protein and intercellular adhesion molecule-1, but showed no behavioral improvements or neuroprotection in the MPTP-induced mouse model of PD.
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MESH Headings
- Animals
- Mice
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/metabolism
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/pharmacology
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/therapeutic use
- Brain/metabolism
- Brain/radiation effects
- Disease Models, Animal
- Dopaminergic Neurons/pathology
- Glial Fibrillary Acidic Protein/metabolism
- Intercellular Adhesion Molecule-1/metabolism
- Intercellular Adhesion Molecule-1/pharmacology
- Intercellular Adhesion Molecule-1/therapeutic use
- Mice, Inbred C57BL
- Parkinson Disease/metabolism
- Parkinson Disease/radiotherapy
- Substantia Nigra/metabolism
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Affiliation(s)
- Mijeong Park
- Radiological and Medical Support Center, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Jimin Ha
- Radiological and Medical Support Center, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea; Division of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Yuri Lee
- Radiological and Medical Support Center, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea; Division of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hoon-Seong Choi
- Research Animal Resource Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Byoung Soo Kim
- Division of Applied RI, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Youn Kyoung Jeong
- Radiological and Medical Support Center, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea.
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28
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Yang C, Wang W, Deng P, Wang X, Zhu L, Zhao L, Li C, Gao H. Fibroblast growth factor 21 ameliorates behavior deficits in Parkinson's disease mouse model via modulating gut microbiota and metabolic homeostasis. CNS Neurosci Ther 2023; 29:3815-3828. [PMID: 37334756 PMCID: PMC10651963 DOI: 10.1111/cns.14302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/28/2023] [Accepted: 05/30/2023] [Indexed: 06/20/2023] Open
Abstract
AIMS The effects of FGF21 on Parkinson's disease (PD) and its relationship with gut microbiota have not been elucidated. This study aimed to investigate whether FGF21 would attenuate behavioral impairment through microbiota-gut-brain metabolic axis in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induced PD mice model. METHODS Male C57BL/6 mice were rendomized into 3 groups: vehicle (CON); MPTP 30 mg/kg/day i.p. injection (MPTP); FGF21 1.5 mg/kg/d i.p. injection plus MPTP 30 mg/kg/day i.p. injection (FGF21 + MPTP). The behavioral features, metabolimics profiling, and 16 s rRNA sequencing were performed after FGF21 treatment for 7 days. RESULTS MPTP-induced PD mice showed motor and cognitive deficits accompanied by gut microbiota dysbiosis and brain-region-specific metabolic abnormalities. FGF21 treatment dramatically attenuated motor and cognitive dysfunction in PD mice. FGF21 produced a region-specific alteration in the metabolic profile in the brain in ways indicative of greater ability in neurotransmitter metabolism and choline production. In addition, FGF21 also re-structured the gut microbiota profile and increased the relative abundance of Clostridiales, Ruminococcaceae, and Lachnospiraceae, thereby rescuing the PD-induced metabolic disorders in the colon. CONCLUSION These findings indicate that FGF21 could affect behavior and brain metabolic homeostasis in ways that promote a favorable colonic microbiota composition and through effects on the microbiota-gut-brain metabolic axis.
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Affiliation(s)
- Changwei Yang
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
- School of Public healthFujian Medical UniversityFuzhouChina
| | - Wuqiong Wang
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - Pengxi Deng
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - Xinyi Wang
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - Lin Zhu
- School of Public healthFujian Medical UniversityFuzhouChina
| | - Liangcai Zhao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
| | - Chen Li
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health)WenzhouChina
| | - Hongchang Gao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouChina
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health)WenzhouChina
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29
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Bai XB, Xu S, Zhou LJ, Meng XQ, Li YL, Chen YL, Jiang YH, Lin WZ, Chen BY, Du LJ, Tian GC, Liu Y, Duan SZ, Zhu YQ. Oral pathogens exacerbate Parkinson's disease by promoting Th1 cell infiltration in mice. MICROBIOME 2023; 11:254. [PMID: 37978405 PMCID: PMC10655362 DOI: 10.1186/s40168-023-01685-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 09/29/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is a common chronic neurological disorder with a high risk of disability and no cure. Periodontitis is an infectious bacterial disease occurring in periodontal supporting tissues. Studies have shown that periodontitis is closely related to PD. However, direct evidence of the effect of periodontitis on PD is lacking. Here, we demonstrated that ligature-induced periodontitis with application of subgingival plaque (LIP-SP) exacerbated motor dysfunction, microglial activation, and dopaminergic neuron loss in 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD mice. RESULTS The 16S rRNA gene sequencing revealed that LIP-SP induced oral and gut dysbiosis. Particularly, Veillonella parvula (V. parvula) and Streptococcus mutans (S. mutans) from oral ligatures were increased in the fecal samples of MPTP + LIP-SP treated mice. We further demonstrated that V. parvula and S. mutans played crucial roles in LIP-SP mediated exacerbation of motor dysfunction and neurodegeneration in PD mice. V. parvula and S. mutans caused microglial activation in the brain, as well as T helper 1 (Th1) cells infiltration in the brain, cervical lymph nodes, ileum and colon in PD mice. Moreover, we observed a protective effect of IFNγ neutralization on dopaminergic neurons in V. parvula- and S. mutans-treated PD mice. CONCLUSIONS Our study demonstrates that oral pathogens V. parvula and S. mutans necessitate the existence of periodontitis to exacerbate motor dysfunction and neurodegeneration in MPTP-induced PD mice. The underlying mechanisms include alterations of oral and gut microbiota, along with immune activation in both brain and peripheral regions. Video Abstract.
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Affiliation(s)
- Xue-Bing Bai
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Shuo Xu
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
- Department of Periodontology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Lu-Jun Zhou
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xiao-Qian Meng
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yu-Lin Li
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yan-Lin Chen
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yi-Han Jiang
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Wen-Zhen Lin
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Bo-Yan Chen
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Lin-Juan Du
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Guo-Cai Tian
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yan Liu
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Sheng-Zhong Duan
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China.
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
- Laboratory of Oral Microbiota and Systemic Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Ya-Qin Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
- College of Stomatology, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
- National Center for Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
- National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai, 200011, China.
- Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
- Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai, 200011, China.
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Kongsui R, Promsrisuk T, Klimaschewski L, Sriraksa N, Jittiwat J, Thongrong S. Pinostrobin mitigates neurodegeneration through an up-regulation of antioxidants and GDNF in a rat model of Parkinson's disease. F1000Res 2023; 12:846. [PMID: 38434672 PMCID: PMC10904945 DOI: 10.12688/f1000research.134891.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2023] [Indexed: 03/05/2024] Open
Abstract
Background: One of the most common neurodegenerative diseases is Parkinson's disease (PD); PD is characterized by a reduction of neurons containing dopamine in the substantia nigra (SN), which leads to a lack of dopamine (DA) in nigrostriatal pathways, resulting in motor function disorders. Oxidative stress is considered as one of the etiologies involved in dopaminergic neuronal loss. Thus, we aimed to investigate the neuroprotective effects of pinostrobin (PB), a bioflavonoid extracted from Boesenbergia rotunda with antioxidative activity in PD. Methods: Rats were treated with 40 mg/kg of PB for seven consecutive days before and after 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD. After completing the experiment, the brains including SN and striatum were used for histological studies and biochemical assays. Results: PB treatment demonstrated a reduction of free radicals in the SN as indicated by significantly decreased MDA levels, whereas the antioxidative enzymes (SOD and GSH) were significantly increased. Furthermore, PB treatment significantly increased glial cell line-derived neurotrophic factor (GDNF) immunolabelling which has neurotrophic and neuroprotective effects on the survival of dopaminergic neurons. Furthermore, PB treatment was shown to protect CA1 and CA3 neurons in the hippocampus and dopaminergic neurons in the SN. DA levels in the SN were increased after PB treatment, leading to the improvement of motor function of PD rats. Conclusions: These results imply that PB prevents MPTP-induced neurotoxicity via its antioxidant activities and increases GDNF levels, which may contribute to the therapeutic strategy for PD.
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Affiliation(s)
- Ratchaniporn Kongsui
- Division of Physiology, School of Medical Sciences, University of Phayao, Mueang Phayao District, Phayao, 56000, Thailand
| | - Tichanon Promsrisuk
- Division of Physiology, School of Medical Sciences, University of Phayao, Mueang Phayao District, Phayao, 56000, Thailand
| | - Lars Klimaschewski
- Division of Neuroanatomy, Department of Anatomy Histology and Embryology, Innsbruck Medical University, Innsbruck, 6020, Austria
| | - Napatr Sriraksa
- Division of Physiology, School of Medical Sciences, University of Phayao, Mueang Phayao District, Phayao, 56000, Thailand
| | - Jinatta Jittiwat
- Faculty of Medicine, Mahasarakham University, Maha Sarakham, Maha Sarakham, 44000, Thailand
| | - Sitthisak Thongrong
- Division of Anatomy, School of Medical Sciences, University of Phayao, Mueang Phayao District, Phayao, 56000, Thailand
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31
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Yuan Y, Ma X, Mi X, Qu L, Liang M, Li M, Wang Y, Song N, Xie J. Dopaminergic neurodegeneration in the substantia nigra is associated with olfactory dysfunction in mice models of Parkinson's disease. Cell Death Discov 2023; 9:388. [PMID: 37865662 PMCID: PMC10590405 DOI: 10.1038/s41420-023-01684-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 10/03/2023] [Accepted: 10/13/2023] [Indexed: 10/23/2023] Open
Abstract
Olfactory dysfunction represents a prodromal stage in Parkinson's disease (PD). However, the mechanisms underlying hyposmia are not specified yet. In this study, we first observed an early olfactory dysfunction in mice with intragastric rotenone administration, consistent with dopaminergic neurons loss and α-synuclein pathology in the olfactory bulb. However, a much severer olfactory dysfunction was observed without severer pathology in olfactory bulb when the loss of dopaminergic neurons in the substantia nigra occurred. Then, we established the mice models by intrastriatal α-synuclein preformed fibrils injection and demonstrated the performance in the olfactory discrimination test was correlated to the loss of dopaminergic neurons in the substantia nigra, without any changes in the olfactory bulb analyzed by RNA-sequence. In mice with intranasal ferric ammonium citrate administration, we observed olfactory dysfunction when dopaminergic neurodegeneration in substantia nigra occurred and was restored when dopaminergic neurons were rescued. Finally we demonstrated that chemogenetic inhibition of dopaminergic neurons in the substantia nigra was sufficient to cause hyposmia and motor incoordination. Taken together, this study shows a direct relationship between nigral dopaminergic neurodegeneration and olfactory dysfunction in PD models and put forward the understandings that olfactory dysfunction represents the early stage of neurodegeneration in PD progression.
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Affiliation(s)
- Yu Yuan
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
- Lingang Laboratory, Shanghai, 200031, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Xizhen Ma
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Xiaoqing Mi
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Le Qu
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Meiyu Liang
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Mengyu Li
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Youcui Wang
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Ning Song
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China.
| | - Junxia Xie
- Institute of Brain Science and Disease, School of Basic Medicine, Shandong Provincial Collaborative Innovation Center for Neurodegenerative Disorders, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China.
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Ren Z, Sun H, Xiu S, Yang N, Liu Y, Chan P. Investigation of rhodamine derivative on behavioral impairment in a double neurotoxin lesion of substantia nigra and locus coeruleus dysfunctional mice. Eur J Pharmacol 2023; 956:175944. [PMID: 37536627 DOI: 10.1016/j.ejphar.2023.175944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/11/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Although multiple mechanisms have been studied, there is still a lack of effective treatment on non-motor symptoms in Parkinson's disease (PD) patients. Therapeutic effects of 5-(4-hydroxy-3-dimethoxybenzylidene)-thiazolidinone (RD-1), one of rhodamine derivatives, on motor recovery have been previously demonstrated, but its effects on non-motor symptoms remain unclear. Herein, we explored the beneficial effects of RD-1 on PD-related non-motor symptoms and changes in synaptic plasticity in the mesencephalon. To investigate its therapeutic effects in the non-motor symptoms of Parkinsonian model, we employed male C57BL/6N mice and double injection with noradrenergic specific neurotoxin N-2-Chloroethyl-N-ethyl-2-bromobenzylamine hydrochloride, followed 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Next, we performed behavioral tests, histological analyses and immunoblotting. Our findings showed that RD-1 significantly alleviated locomotor abnormality, motor disturbance, anxiety/depression-like behavior and memory deficit. It rescued the levels of tyrosine hydroxylase in substantia nigra, and striatum. Moreover, RD-1 upregulated expression levels of α-synuclein, synapsin II, postsynaptic density 95 and vesicle-associated membrane protein 2. The restoration of synaptic function may underlie the neuroprotective effects of RD-1 in double lesioned mice, confirming its protective effect for dopaminergic neurodegeneration.
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Affiliation(s)
- Zhili Ren
- Department of Neurobiology, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing Institute of Geriatrics, Beijing, China.
| | - Hong Sun
- Department of Neurobiology, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing Institute of Geriatrics, Beijing, China
| | - Shuangling Xiu
- Department of Endocrinology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Nan Yang
- Department of Pharmacology, Institute of Basic Medical Sciences, Peking Union Medical College, Beijing, 100005, China
| | - Yanyong Liu
- Department of Pharmacology, Institute of Basic Medical Sciences, Peking Union Medical College, Beijing, 100005, China.
| | - Piu Chan
- Department of Neurobiology, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital of Capital Medical University, Beijing Institute of Geriatrics, Beijing, China; Clinical Center for Parkinson's Disease, Capital Medical University, Key Laboratory for Neurodegenerative Disease of the Ministry of Education, Beijing Key Laboratory for Parkinson's Disease, Beijing, China; Beijing Institute of Brain Disorders, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
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Wang L, Bai Y, Tao Y, Shen W, Zhou H, He Y, Wu H, Huang F, Shi H, Wu X. Bear bile powder alleviates Parkinson's disease-like behavior in mice by inhibiting astrocyte-mediated neuroinflammation. Chin J Nat Med 2023; 21:710-720. [PMID: 37777320 DOI: 10.1016/s1875-5364(23)60449-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Indexed: 10/02/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease in middle-aged and elderly people. In particular, increasing evidence has showed that astrocyte-mediated neuroinflammation is involved in the pathogenesis of PD. As a precious traditional Chinese medicine, bear bile powder (BBP) has a long history of use in clinical practice. It has numerous activities, such as clearing heat, calming the liver wind and anti-inflammation, and also exhibits good therapeutic effect on convulsive epilepsy. However, whether BBP can prevent the development of PD has not been elucidated. Hence, this study was designed to explore the effect and mechanism of BBP on suppressing astrocyte-mediated neuroinflammation in a mouse model of PD. PD-like behavior was induced in the mice by intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) (30 mg·kg-1) for five days, followed by BBP (50, 100, and 200 mg·kg-1) treatment daily for ten days. LPS stimulated rat C6 astrocytic cells were used as a cell model of neuroinflammation. THe results indicated that BBP treatment significantly ameliorated dyskinesia, increased the levels of tyrosine hydroxylase (TH) and inhibited astrocyte hyperactivation in the substantia nigra (SN) of PD mice. Furthermore, BBP decreased the protein levels of glial fibrillary acidic protein (GFAP), cyclooxygenase 2 (COX2) and inducible nitric oxide synthase (iNOS), and up-regulated the protein levels of takeda G protein-coupled receptor 5 (TGR5) in the SN. Moreover, BBP significantly activated TGR5 in a dose-dependent manner, and decreased the protein levels of GFAP, iNOS and COX2, as well as the mRNA levels of GFAP, iNOS, COX2, interleukin (IL) -1β, IL-6 and tumor necrosis factor-α (TNF-α) in LPS-stimulated C6 cells. Notably, BBP suppressed the phosphorylation of protein kinase B (AKT), inhibitor of NF-κB (IκBα) and nuclear factor-κB (NF-κB) proteins in vivo and in vitro. We also observed that TGR5 inhibitor triamterene attenuated the anti-neuroinflammatory effect of BBP on LPS-stimulated C6 cells. Taken together, BBP alleviates the progression of PD mice by suppressing astrocyte-mediated inflammation via TGR5.
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Affiliation(s)
- Lupeng Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yuyan Bai
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yanlin Tao
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wei Shen
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Houyuan Zhou
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yixin He
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hui Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Fei Huang
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hailian Shi
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Qi Y, Zhang Z, Li Y, Zhao G, Huang J, Zhang Y, Xue J, Tang X. Whether the Subacute MPTP-Treated Mouse is as Suitable as a Classic Model of Parkinsonism. Neuromolecular Med 2023; 25:360-374. [PMID: 36913134 DOI: 10.1007/s12017-023-08740-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 01/08/2023] [Indexed: 03/14/2023]
Abstract
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mice model is one of the most common animal models for Parkinson's disease (PD). It is classified into three types: acute, subacute, and chronic intoxication models. The subacute model has attracted much attention for its short period and similarity to PD. However, whether subacute MPTP intoxication in mouse mimics the movement and cognitive disorders of PD still remains highly controversial. Therefore, the present study reassessed the behavioral performances of subacute MPTP intoxication in mice using open field, rotarod, Y maze, and gait analysis at different time points (1, 7, 14, and 21 days) after modeling. Results of the current study showed that although MPTP-treated mice using subacute regimen showed severe dopaminergic neuronal loss and evident astrogliosis, they failed to display significant motor and cognitive deficits. Besides, expression of mixed lineage kinase domain-like (MLKL), a marker of necroptosis, was also significantly increased in the ventral midbrain and striatum of MPTP-intoxicated mice. This evidently implies that necroptosis may play an important role in MPTP-induced neurodegeneration. In conclusion, the findings of the present study suggest that subacute MPTP-intoxicated mice may not be a suitable model for studying parkinsonism. However, it can help in revealing the early pathophysiology of PD and studying the compensatory mechanisms which occur in early PD that prevent the emergence of behavioral deficits.
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Affiliation(s)
- Yue Qi
- Department of Human Anatomy, School of Basic Medical Sciences, Gannan Medical University, Harmonious Avenue, Zhang Gong District, Ganzhou, 341000, China
| | - Ziwei Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Gannan Medical University, Harmonious Avenue, Zhang Gong District, Ganzhou, 341000, China
| | - Yanning Li
- Department of Forensic Medicine, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Guojian Zhao
- School of Rehabilitation Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Jinyong Huang
- School of Rehabilitation Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Yi Zhang
- Department of Forensic Medicine, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, 341000, China
| | - Jinhua Xue
- Department of Pathophysiology, School of Basic Medical Sciences, Gannan Medical University, Harmonious Avenue, Zhang Gong District, Ganzhou, 341000, China.
| | - Xiaolu Tang
- Department of Human Anatomy, School of Basic Medical Sciences, Gannan Medical University, Harmonious Avenue, Zhang Gong District, Ganzhou, 341000, China.
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Li H, Gao M, Chen Z, Zhou Z, Li W, Zhang X, Jiang X, Luo L, Li F, Wang G, Zhang Y, Huang X, Zhu J, Fan S, Wu X, Huang C. Hordenine improves Parkinsonian-like motor deficits in mice and nematodes by activating dopamine D2 receptor-mediated signaling. Phytother Res 2023; 37:3296-3308. [PMID: 36883794 DOI: 10.1002/ptr.7790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 02/12/2023] [Accepted: 02/17/2023] [Indexed: 03/09/2023]
Abstract
Parkinson's disease (PD) is a chronic neurodegenerative disease characterized by selective loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) and the striatum, leading to dopamine (DA) deficiency in the striatum and typical motor symptoms. A small molecule as a dietary supplement for PD would be ideal for practical reasons. Hordenine (HOR) is a phenolic phytochemical marketed as a dietary supplement found in cereals and germinated barley, as well as in beer, a widely consumed beverage. This study was aimed to identify HOR as a dopamine D2 receptor (DRD2) agonist in living cells, and investigate the alleviative effect and mechanism of HOR on PD-like motor deficits in mice and nematodes. Our results firstly showed that HOR is an agonist of DRD2, but not DRD1, in living cells. Moreover, HOR could improve the locomotor dysfunction, gait, and postural imbalance in MPTP- or 6-OHDA-induced mice or Caenorhabditis elegans, and prevent α-synuclein accumulation via the DRD2 pathway in C. elegans. Our results suggested that HOR could activate DRD2 to attenuate the PD-like motor deficits, and provide scientific evidence for the safety and reliability of HOR as a dietary supplement.
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Affiliation(s)
- Hongli Li
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Min Gao
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ziyu Chen
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhenyu Zhou
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wei Li
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Physiology, and Institute for Brain Sciences, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xiaoyang Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Physiology, and Institute for Brain Sciences, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xi Jiang
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lingling Luo
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fei Li
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Gaorui Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xingxu Huang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Jingning Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Physiology, and Institute for Brain Sciences, School of Life Sciences, Nanjing University, Nanjing, China
| | - Shengjie Fan
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Cheng Huang
- Drug Discovery Laboratory, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Rocha E, Chamoli M, Chinta SJ, Andersen JK, Wallis R, Bezard E, Goldberg M, Greenamyre T, Hirst W, Kuan WL, Kirik D, Niedernhofer L, Rappley I, Padmanabhan S, Trudeau LE, Spillantini M, Scott S, Studer L, Bellantuono I, Mortiboys H. Aging, Parkinson's Disease, and Models: What Are the Challenges? AGING BIOLOGY 2023; 1:e20230010. [PMID: 38978807 PMCID: PMC11230631 DOI: 10.59368/agingbio.20230010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Parkinson's disease (PD) is a chronic, neurodegenerative condition characterized by motor symptoms such as bradykinesia, rigidity, and tremor, alongside multiple nonmotor symptoms. The appearance of motor symptoms is linked to progressive dopaminergic neuron loss within the substantia nigra. PD incidence increases sharply with age, suggesting a strong association between mechanisms driving biological aging and the development and progression of PD. However, the role of aging in the pathogenesis of PD remains understudied. Numerous models of PD, including cell models, toxin-induced models, and genetic models in rodents and nonhuman primates (NHPs), reproduce different aspects of PD, but preclinical studies of PD rarely incorporate age as a factor. Studies using patient neurons derived from stem cells via reprogramming methods retain some aging features, but their characterization, particularly of aging markers and reproducibility of neuron type, is suboptimal. Investigation of age-related changes in PD using animal models indicates an association, but this is likely in conjunction with other disease drivers. The biggest barrier to drawing firm conclusions is that each model lacks full characterization and appropriate time-course assessments. There is a need to systematically investigate whether aging increases the susceptibility of mouse, rat, and NHP models to develop PD and understand the role of cell models. We propose that a significant investment in time and resources, together with the coordination and sharing of resources, knowledge, and data, is required to accelerate progress in understanding the role of biological aging in PD development and improve the reliability of models to test interventions.
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Affiliation(s)
- Emily Rocha
- Pittsburgh Institute for Neurodegenerative Diseases and Department of Neurology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Shankar J Chinta
- Buck Institute for Research on Aging, Novato, CA, USA
- Touro University California, College of Pharmacy, Vallejo, CA, USA
| | | | - Ruby Wallis
- The Healthy Lifespan Institute, Sheffield, United Kingdom
| | | | | | - Tim Greenamyre
- Pittsburgh Institute for Neurodegenerative Diseases and Department of Neurology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - We-Li Kuan
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | - Deniz Kirik
- Brain Repair and Imaging in Neural Systems (BRAINS), Lund, Sweden
| | - Laura Niedernhofer
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Irit Rappley
- Recursion pharmaceuticals, Salt Lake City, UT, USA
| | | | - Louis-Eric Trudeau
- Department of pharmacology and physiology, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Maria Spillantini
- Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom
| | | | - Lorenz Studer
- The Center for Stem Cell Biology and Developmental Biology Program, Sloan-Kettering Institute for Cancer Research, New York, NY, USA
| | - Ilaria Bellantuono
- The Healthy Lifespan Institute, Sheffield, United Kingdom
- Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
| | - Heather Mortiboys
- The Healthy Lifespan Institute, Sheffield, United Kingdom
- Department of Neuroscience, Sheffield Institute of Translational Neuroscience (SITraN), University of Sheffield, Sheffield, United Kindgom
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Amo-Aparicio J, Daly J, Højen JF, Dinarello CA. Pharmacologic inhibition of NLRP3 reduces the levels of α-synuclein and protects dopaminergic neurons in a model of Parkinson's disease. J Neuroinflammation 2023; 20:147. [PMID: 37349821 PMCID: PMC10286423 DOI: 10.1186/s12974-023-02830-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/11/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) is characterized by a progressive degeneration of dopaminergic neurons, which leads to irreversible loss of peripheral motor functions. Death of dopaminergic neurons induces an inflammatory response in microglial cells, which further exacerbates neuronal loss. Reducing inflammation is expected to ameliorate neuronal loss and arrest motor dysfunctions. Because of the contribution of the NLRP3 inflammasome to the inflammatory response in PD, we targeted NLRP3 using the specific inhibitor OLT1177®. METHODS We evaluated the effectiveness of OLT1177® in reducing the inflammatory response in an MPTP neurotoxic model of PD. Using a combination of in vitro and in vivo studies, we analyzed the effects of NLRP3 inhibition on pro-inflammatory markers in the brain, α-synuclein aggregation, and dopaminergic neuron survival. We also determined the effects of OLT1177® on locomotor deficits associated with MPTP and brain penetrance. RESULTS Treatment with OLT1177® prevented the loss of motor function, reduced the levels of α-synuclein, modulated pro-inflammatory markers in the nigrostriatal areas of the brain, and protected dopaminergic neurons from degeneration in the MPTP model of PD. We also demonstrated that OLT1177® crosses the blood-brain barrier and reaches therapeutic concentrations in the brain. CONCLUSIONS These data suggest that targeting the NLRP3 inflammasome by OLT1177® may be a safe and novel therapeutic approach to arrest neuroinflammation and protect against neurological deficits of Parkinson's disease in humans.
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Affiliation(s)
- Jesus Amo-Aparicio
- Department of Medicine, University of Colorado, 12700 E 19th Ave, Aurora, CO, 80045, USA.
| | - Jonathan Daly
- Department of Medicine, University of Colorado, 12700 E 19th Ave, Aurora, CO, 80045, USA
| | - Jesper Falkesgaard Højen
- Department of Medicine, University of Colorado, 12700 E 19th Ave, Aurora, CO, 80045, USA
- Department of Clinical Medicine, Aarhus University, 8200, Aarhus, Denmark
| | - Charles A Dinarello
- Department of Medicine, University of Colorado, 12700 E 19th Ave, Aurora, CO, 80045, USA
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Alghamdi AM, Al-Abbasi FA, AlGhamdi SA, Fatima F, Alzarea SI, Kazmi I. Rosinidin inhibits NF-κB/ Nrf2/caspase-3 expression and restores neurotransmitter levels in rotenone-activated Parkinson's disease. Saudi J Biol Sci 2023; 30:103656. [PMID: 37187936 PMCID: PMC10176079 DOI: 10.1016/j.sjbs.2023.103656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/22/2023] [Accepted: 04/16/2023] [Indexed: 05/17/2023] Open
Abstract
Objectives The examination was sighted to study the preventive effects of rosinidin against rotenone-activated Parkinson's disease in rats. Methods Animals were randamoized into five groups: I-saline, II-rotenone (0.5 mg/kg/b.wt.), III- IV-10 and 20 mg/kg rosinidin after rotenone and V-20 mg/kg rosinidin per se for 28 days and were assigned for behavioral analysis., Biochemical parameters i.e. lipid peroxidation, endogenous antioxidants, nitrite level, neurotransmitter levels, proinflammatory biomarkers such as interleukin- 6 (IL-6), tumor necrosis factor-α, IL-1β, nuclear factor kappa B, nuclear factor erythroid 2-related factor 2, and caspase-3 were assessed on the 29th day of the research. Results Rosinidin augmented the effectiveness of rotenone on akinesia, catalepsy, forced-swim test, rotarod, and open-field test. Biochemical findings indicated that treatment of rosinidin showed restoring neuroinflammatory cytokines, antioxidants, and neurotransmitter levels in rotenone-injected rats. Conclusion As a result of rosinidin treatment, the brain was protected from oxidative stress-induced neuronal damage and inhibited neuroinflammatory cytokines.
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Affiliation(s)
- Amira M. Alghamdi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Shareefa A. AlGhamdi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Farhat Fatima
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Aljouf, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Corresponding author.
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Wang Z, Cui J, Li D, Ran S, Huang J, Chen G. Morin exhibits a neuroprotective effect in MPTP-induced Parkinson's disease model via TFEB/AMPK-mediated mitophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154866. [PMID: 37209604 DOI: 10.1016/j.phymed.2023.154866] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is one of the most common neurodegenerative diseases in the world. Mitophagy has been implicated in PD etiology for decades and its pharmacological activation is recognized as a promising treatment strategy for PD. For mitophagy initiation, low mitochondrial membrane potential (ΔΨm) is essential. We identified a natural compound morin that could induce mitophagy without affecting ΔΨm. Morin is a flavonoid that can be isolated from fruits like mulberry. PURPOSE To reveal the effect of morin on the PD mice model and their potential underlying molecular mechanism. METHODS Mitophagy process induced by morin in N2a cells meditation were measured using flow cytometry and immunofluorescence. JC-1 fluorescence dye used to detect the mitochondrial membrane potential (ΔΨm). The TFEB nuclear translocation were examined by immunofluorescence staining and western blot assay. The PD mice model was induced by MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) intraperitoneal administration. RESULTS We found that morin also promoted nuclear translocation of the mitophagy regulator TFEB and activated the AMPK-ULK1 pathway. In MPTP-induced PD in vivo models, morin protected DA neurons from MPTP neurotoxicity and ameliorated behavioral deficit. CONCLUSION Although morin was previously reported to be neuroprotective in PD, the detailed molecular mechanisms remain to be elucidated. For the first time, we report morin served as a novel and safe mitophagy enhancer underlying AMPK-ULK1 pathway and exhibited anti-Parkinsonian effects indicating its potential as a clinical drug for PD treatment.
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Affiliation(s)
- Ziying Wang
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
| | - Jinshuai Cui
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Dongni Li
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Shuzhen Ran
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Junqing Huang
- Formula-pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Gang Chen
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
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Yildirim S, Oylumlu E, Ozkan A, Sinen O, Bulbul M, Goksu ET, Ertosun MG, Tanriover G. ZINC (Zn) AND ADIPOSE-DERIVED MESENCHYMAL STEM CELLS (AD-MSCs) ON MPTP-INDUCED PARKINSON'S DISEASE MODEL: A COMPARATIVE EVALUATION OF BEHAVIORAL AND IMMUNOHISTOCHEMICAL RESULTS. Neurotoxicology 2023; 97:1-11. [PMID: 37146888 DOI: 10.1016/j.neuro.2023.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/19/2023] [Accepted: 05/01/2023] [Indexed: 05/07/2023]
Abstract
Parkinson's disease (PD) is characterized by the loss of dopaminergic neurons and sustained neuroinflammation due to microglial activation. Adipose tissue-derived mesenchymal stem cells (AD-MSCs) secrete neuroprotective factors to prevent neuronal damage. Furthermore, Zn regulates stem cell proliferation and differentiation and has immunomodulatory functions. Our in vivo study aimed to investigate whether Zn affects the activities of AD-MSCs in the MPTP-induced mouse model. Male C57BL/6 mice were randomly divided into six groups (n=6): Control, Zn, PD, PD+Zn, PD+(AD-MSC), PD+(AD-MSC)+Zn. MPTP toxin (20mg/kg) was dissolved in saline and intraperitoneally injected into experimental groups for two days with 12h intervals. On the 3rd day, AD-MSCs were given to the right lateral ventricle of the PD+(AD-MSC) and PD+(AD-MSC)+Zn groups by stereotaxic surgery. Then, ZnSO4H2O was administered intraperitoneally for 4 days at 2mg/kg. Seven days post MPTP injection, the motor activities of the mouse were evaluated. Then immunohistochemical analyzes were performed in SNpc. Our results showed that motor activity was lower in Group PD. AD-MSC and Zn administration have improved this impairment. MPTP caused a decrease in TH and BDNF expressions in dopaminergic neurons in Group PD. However, TH and BDNF expressions were more intense in the other groups. MCP-1, TGF-β, and IL-10 expressions increased in administered groups compared to the Group PD. The present study indicates that Zn's individual and combined administration with AD-MSCs reduces neuronal damage in the MPTP-induced mouse model. In addition, anti-inflammatory responses that emerge with Zn and AD-MSCs may have a neuroprotective effect.
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Affiliation(s)
- Sendegul Yildirim
- Akdeniz University, Faculty of Medicine, Department of Histology and Embryology, Antalya, Turkey
| | - Ece Oylumlu
- Akdeniz University, Faculty of Medicine, Department of Histology and Embryology, Antalya, Turkey
| | - Ayse Ozkan
- Izmir Bakircay University, Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | - Osman Sinen
- Akdeniz University, Faculty of Medicine, Department of Physiology, Antalya, Turkey
| | - Mehmet Bulbul
- Akdeniz University, Faculty of Medicine, Department of Physiology, Antalya, Turkey
| | - Ethem Taner Goksu
- Akdeniz University, Faculty of Medicine, Department of Neurosurgery, Antalya, Turkey
| | - Mustafa Gokhan Ertosun
- Akdeniz University, Faculty of Medicine, Department of Plastic, Reconstructive and Aesthetic Surgery, Antalya, Turkey
| | - Gamze Tanriover
- Akdeniz University, Faculty of Medicine, Department of Histology and Embryology, Antalya, Turkey; Akdeniz University, Faculty of Medicine, Department of Medical Biotechnology, Antalya, Turkey.
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Cai H, Zhang P, Li T, Li M, Zhang L, Cui C, Lei J, Yang J, Ren K, Ming J, Tian B. Amygdalo-nigral circuit mediates stress-induced vulnerability to the parkinsonian toxin MPTP. CNS Neurosci Ther 2023. [PMID: 36914579 DOI: 10.1111/cns.14151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 03/16/2023] Open
Abstract
AIMS The aim was to investigate the effect of mood disorders on parkinsonian toxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced motor disability, substantia nigra pars compacta (SNc) dopaminergic (DA) neurons loss. Also, the neural circuit mechanism was elucidated. METHODS The depression-like (physical stress, PS) and anxiety-like (emotional stress, ES) mouse models were established by the three-chamber social defeat stress (SDS). The features of Parkinson's disease were reproduced by MPTP injection. Viral-based whole-brain mapping was utilized to resolve the stress-induced global changes in direct inputs onto SNc DA neurons. Calcium imaging and chemogenetic techniques were applied to verify the function of the related neural pathway. RESULTS We found that PS mice, but not ES mice, showed worse movement performance and more SNc DA neuronal loss than control mice after MPTP administration. The projection from the central amygdala (CeA) to the SNcDA was significantly increased in PS mice. The activity of SNc-projected CeA neurons was enhanced in PS mice. Activating or inhibiting the CeA-SNcDA pathway could mimic or block PS-induced vulnerability to MPTP. CONCLUSIONS These results indicated that projections from CeA to SNc DA neurons contribute to SDS-induced vulnerability to MPTP in mice.
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Affiliation(s)
- Hongwei Cai
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Clinical College of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Pei Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei, China
| | - Tongxia Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ming Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lijun Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chi Cui
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jie Lei
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian Yang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kun Ren
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jie Ming
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Bo Tian
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei, China
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42
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Presti-Silva SM, Herlinger AL, Martins-Silva C, Pires RGW. Biochemical and behavioral effects of rosmarinic acid treatment in an animal model of Parkinson's disease induced by MPTP. Behav Brain Res 2023; 440:114257. [PMID: 36526017 DOI: 10.1016/j.bbr.2022.114257] [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: 09/12/2022] [Revised: 12/02/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease worldwide. The main therapeutic approach available nowadays relieves motor symptoms but does not prevent or stop neurodegeneration. Rosmarinic acid (RA), an ester of caffeic and 3,4-dihydroxyphenylacetic acids, is obtained from numerous plant species such as Salvia officinalis L. (sage) and Rosmarinus officinalis (rosemary). This compound has a wide spectrum of biological activities, such as antioxidant and anti-inflammatory, and could be an additional therapy for neurodegenerative disorders. Here we evaluated the potential neuroprotective effects of RA treatment in a murine model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Mice were separated into four groups: CN, Control/saline; RA, Rosmarinic acid/vehicle; MPTP, MPTP/saline; MPTP+RA, MPTP/RA. RA (20 mg/kg, or vehicle) was administered orally by intra-gastric gavage for 14 days, one hour before MPTP or saline injection. MPTP groups received the drug (30 mg/kg, intraperitoneally) once a day for five days (fourth to the eighth day of the experiment). MPTP-treated animals displayed hyperlocomotion behavior, which was significantly prevented by RA treatment. In addition, RA treatment increased dopaminergic signaling in the parkinsonian mice and improved the monoaminergic system in healthy animals. Analysis of alterations in the striatal mRNA expression of dopaminergic system components showed that MAO-A expression was increased in the MPTP+AR group. Overall, this study brings new evidence of the potential neuroprotective properties of RA not only in preventing behavioral features observed in PD, but also by improving neurotransmission in the healthy brain.
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Affiliation(s)
- Sarah Martins Presti-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Alice Laschuk Herlinger
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Rita Gomes Wanderley Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil.
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Wang Y, Pu Z, Zhang Y, Du Z, Guo Z, Bai Q. Exercise training has a protective effect in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine mice model with improved neural and intestinal pathology and modified intestinal flora. Behav Brain Res 2023; 439:114240. [PMID: 36455673 DOI: 10.1016/j.bbr.2022.114240] [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: 09/16/2022] [Revised: 11/25/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease with the exact etiology still unclear, but gut microbial disorders are thought to be related to the initiation and progression of it. Exercise training has a significant effect on the intestinal flora, so to investigate the promotion effect of exercise training on Parkinson's disease, we performed a rotarod walking training (5 times a week at 25 rpm for 20 min for 8 weeks) on a chronic mouse model of Parkinson's disease induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and observed the locomotor function of mice, function of dopaminergic neurons, intestinal mucosal barrier condition, intestinal inflammation and the structure and composition of intestinal flora. The results showed in these PD mice, exercise training improved their motility, increased the dopamine (DA) content in the striatum, along with promoted the gene expression of tyrosine hydroxylase and brain-derived neurotrophic factor in the striatum, which suggests this exercise training might protect striatal dopaminergic neurons from MPTP damage; the results also showed exercise training promoted recovery from ileal pathology, reduced the gene expression of intestinal inflammatory factors, and significantly altered the composition and structure of the intestinal flora in these mice.
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Affiliation(s)
- Yongjun Wang
- Chongqing Technology and Business University, No. 19 Xue Fu Road, Nanan District, Chongqing 401334, PR China.
| | - Zhengjia Pu
- School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China.
| | - Yiran Zhang
- School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China.
| | - Zhaohui Du
- Chongqing Technology and Business University, No. 19 Xue Fu Road, Nanan District, Chongqing 401334, PR China.
| | - Zeming Guo
- School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China.
| | - Qunhua Bai
- School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China.
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Ruan S, Xie J, Wang L, Guo L, Li Y, Fan W, Ji R, Gong Z, Xu Y, Mao J, Xie J. Nicotine alleviates MPTP-induced nigrostriatal damage through modulation of JNK and ERK signaling pathways in the mice model of Parkinson's disease. Front Pharmacol 2023; 14:1088957. [PMID: 36817162 PMCID: PMC9932206 DOI: 10.3389/fphar.2023.1088957] [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: 11/03/2022] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction: Nicotine (Nic) has previously been proven to reduce neurodegeneration in the models of Parkinson's disease (PD). The present study is intended to investigate the detailed mechanisms related to the potential neuroprotective effects of Nic in vivo. Methods: We established a PD model using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced C57BL6 mice (25 mg/kg/d, 5 d, i.p.) to investigate the neuropharmacological modulation of Nic pretreatment (2.5 mg/kg/d, 5 d, i.p., 30 min before MPTP injection) from the perspectives of neurobehavioral assessment, the pathological alterations, microglial cell inflammation and MAPK signaling pathways in specific brain regions. Results: The open field test, elevated plus maze, rotarod and traction test suggested that Nic pretreatment could significantly improve MPTP-induced motor impairment and had an anxiolytic effect. Nic was found to improve neuroapoptosis, enhance tyrosine hydroxylase activity, and reduce the accumulation of the phosphorylated α-synuclein in the substantia nigra and striatal regions of PD mice by TUNEL and immunohistochemical assays. Immuno-fluorescent method for labeling Iba1 and CD68 indicated that Nic remarkably alleviates the activation of microglia which represents the M1 polarization state in the mice brain under MPTP stimulation. No significant difference in the expression of p38/MAPK pathway was found in the nigrostriatal regions, while Nic could significantly inhibit the elevated p-JNK/JNK ratio and increase the declined p-ERK/ERK ratio in the substantia nigra of MPTP-exposed brains, which was further confirmed by the pretreatment of CYP2A5 inhibitor to decline the metabolic activity of Nic. Discussion: The molecular signaling mechanism by which Nic exerts its neuroprotective effects against PD may be achieved by regulating the JNK and ERK signaling pathways in the nigra-striatum related brain regions.
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Affiliation(s)
- Sisi Ruan
- Flavour Science Research Center, College of Chemistry, Zhengzhou University, Zhengzhou, China,Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jiqing Xie
- Technology and Research Center, China Tobacco Jiangsu Industrial Co., Ltd.,, Nanjing, China
| | - Linhai Wang
- Flavour Science Research Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Lulu Guo
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Yan Li
- Flavour Science Research Center, College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Wu Fan
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Rongzhan Ji
- Technology and Research Center, China Tobacco Jiangsu Industrial Co., Ltd.,, Nanjing, China
| | - Zhenlin Gong
- Technology and Research Center, China Tobacco Jiangsu Industrial Co., Ltd.,, Nanjing, China
| | - Yan Xu
- Department of Medical Genetics and Cell Biology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China,*Correspondence: Yan Xu, ; Jian Mao,
| | - Jian Mao
- Flavour Science Research Center, College of Chemistry, Zhengzhou University, Zhengzhou, China,Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China,*Correspondence: Yan Xu, ; Jian Mao,
| | - Jianping Xie
- Flavour Science Research Center, College of Chemistry, Zhengzhou University, Zhengzhou, China,Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
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45
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Magalhães JD, Cardoso SM. Mitochondrial signaling on innate immunity activation in Parkinson disease. Curr Opin Neurobiol 2023; 78:102664. [PMID: 36535149 DOI: 10.1016/j.conb.2022.102664] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease characterized by the accumulation of alpha-synuclein (aSyn) in the nigrostriatal pathway that is followed by severe neuroinflammatory response. PD etiology is still puzzling; however, the mitocentric view might explain the vast majority of molecular findings not only in the brain, but also at systemic level. While neuronal degeneration is tightly associated with mitochondrial dysfunction, the causal role between aSyn accumulation and mitochondrial dysfunction still requires further investigation. Moreover, mitochondrial dysfunction can elicit an inflammatory response that may be transmitted locally but also in a long range through systemic circulation. Furthermore, mitochondrial-driven innate immune activation may involve the synthesis of antimicrobial peptides, of which aSyn poses as a good candidate. While there is still a need to clarify disease-elicited mechanisms and how aSyn has the ability to modulate mitochondrial and cellular dysfunction, recent studies provide insightful views on mitochondria-inflammation axis in PD etiology.
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Affiliation(s)
- João D Magalhães
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Programme in Biomedicine and Experimental Biology (PDBEB), Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Sandra Morais Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute of Cellular and Molecular Biology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
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46
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Endothelial LRP1-ICD Accelerates Cognition-Associated Alpha-Synuclein Pathology and Neurodegeneration through PARP1 Activation in a Mouse Model of Parkinson's Disease. Mol Neurobiol 2023; 60:979-1003. [PMID: 36394710 DOI: 10.1007/s12035-022-03119-4] [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: 05/18/2022] [Accepted: 11/03/2022] [Indexed: 11/19/2022]
Abstract
Parkinson's disease (PD) is characterized by progressive loss of dopaminergic neurons and accumulation of misfolded alpha-synuclein (αSyn) into Lewy bodies. In addition to motor impairment, PD commonly presents with cognitive impairment, a non-motor symptom with poor outcome. Cortical αSyn pathology correlates closely with vascular risk factors and vascular degeneration in cognitive impairment. However, how the brain microvasculature regulates αSyn pathology and neurodegeneration remains unclear. Here, we constructed a rapidly progressive PD model by injecting alpha-synuclein preformed fibrils (αSyn PFFs) into the cerebral cortex and striatum. Brain capillaries in mice with cognitive impairment showed a reduction in diameter and length after 6 months, along with string vessel formation. The intracellular domain of low-density lipoprotein receptor-related protein-1 (LRP1-ICD) was upregulated in brain microvascular endothelium. LRP1-ICD promoted αSyn PFF uptake and exacerbated endothelial damage and neuronal apoptosis. Then, we overexpressed LRP1-ICD in brain capillaries using an adeno-associated virus carrying an endothelial-specific promoter. Endothelial LRP1-ICD worsened αSyn PFF-induced vascular damage, αSyn pathology, or neuron death in the cortex and hippocampus, resulting in severe motor and cognitive impairment. LRP1-ICD increased the synthesis of poly(adenosine 5'-diphosphate-ribose) (PAR) in the presence of αSyn PFFs. Inhibition of PAR polymerase 1 (PARP1) prevented vascular-derived injury, as did loss of PARP1 in the endothelium, which was further implicated in endothelial cell proliferation and inflammation. Together, we demonstrate a novel vascular mechanism of cognitive impairment in PD. These findings support a role for endothelial LRP1-ICD/PARP1 in αSyn pathology and neurodegeneration, and provide evidence for vascular protection strategies in PD therapy.
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Sajwan-Khatri M, Senthilkumaran B. MPTP induces neurodegeneration by modulating dopaminergic activity in catfish brain. Neurotoxicol Teratol 2023; 95:107146. [PMID: 36481438 DOI: 10.1016/j.ntt.2022.107146] [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: 08/16/2022] [Revised: 11/10/2022] [Accepted: 11/27/2022] [Indexed: 12/12/2022]
Abstract
Tyrosine hydroxylase (Th) is an allosteric rate-limiting enzyme in catecholamine (CA) biosynthesis. The CAs, dopamine (DA), norepinephrine (NE), and epinephrine are important neurotransmitters wherein DA contributes a key role in the central nervous system of vertebrates. The present study evaluated DA and Th's significance in DA-ergic activity and neurodegeneration upon 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) exposure in catfish. Further, the expression of certain brain-and ovary-related genes measured through qPCR were downregulated upon MPTP treatment which is in accordance with the decreased levels of L-Dopa, DA, and NE levels estimated through HPLC-ECD. Additionally, TEM analysis depicted structural disarray of brain upon MPTP exposure and also decreased serum levels of testosterone, 11-ketotestosterone, and estradiol-17β. MPTP treatment, in vitro, using primary brain cell culture resulted in diminished cell viability and increased ROS levels leading to elevated apoptotic cells significantly. Consequently, the study highlights the MPTP-induced neurodegeneration of the Th and DA-ergic activity in corroboration with female brain-related genes downregulation, also gonadal function as evidenced by depleted sex steroids level and low expression of ovary-related genes.
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Affiliation(s)
- Mamta Sajwan-Khatri
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad 500046, Telangana, India.
| | - Balasubramanian Senthilkumaran
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad 500046, Telangana, India.
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48
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Santoro M, Fadda P, Klephan KJ, Hull C, Teismann P, Platt B, Riedel G. Neurochemical, histological, and behavioral profiling of the acute, sub-acute, and chronic MPTP mouse model of Parkinson's disease. J Neurochem 2023; 164:121-142. [PMID: 36184945 PMCID: PMC10098710 DOI: 10.1111/jnc.15699] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/25/2022] [Accepted: 09/30/2022] [Indexed: 02/04/2023]
Abstract
Parkinson's disease (PD) is a heterogeneous multi-systemic disorder unique to humans characterized by motor and non-motor symptoms. Preclinical experimental models of PD present limitations and inconsistent neurochemical, histological, and behavioral readouts. The 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD is the most common in vivo screening platform for novel drug therapies; nonetheless, behavioral endpoints yielded amongst laboratories are often discordant and inconclusive. In this study, we characterized neurochemically, histologically, and behaviorally three different MPTP mouse models of PD to identify translational traits reminiscent of PD symptomatology. MPTP was intraperitoneally (i.p.) administered in three different regimens: (i) acute-four injections of 20 mg/kg of MPTP every 2 h; (ii) sub-acute-one daily injection of 30 mg/kg of MPTP for 5 consecutive days; and (iii) chronic-one daily injection of 4 mg/kg of MPTP for 28 consecutive days. A series of behavioral tests were conducted to assess motor and non-motor behavioral changes including anxiety, endurance, gait, motor deficits, cognitive impairment, circadian rhythm and food consumption. Impairments in balance and gait were confirmed in the chronic and acute models, respectively, with the latter showing significant correlation with lesion size. The sub-acute model, by contrast, presented with generalized hyperactivity. Both, motor and non-motor changes were identified in the acute and sub-acute regime where habituation to a novel environment was significantly reduced. Moreover, we report increased water and food intake across all three models. Overall, the acute model displayed the most severe lesion size, while across the three models striatal dopamine content (DA) did not correlate with the behavioral performance. The present study demonstrates that detection of behavioral changes following MPTP exposure is challenging and does not correlate with the dopaminergic lesion extent.
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Affiliation(s)
- Matteo Santoro
- Institute of Medical SciencesUniversity of AberdeenAberdeenUK
- Present address:
Department of Neurosurgery, School of MedicineStanford UniversityPalo AltoCaliforniaUSA
| | - Paola Fadda
- Department of NeuroscienceUniversity of CagliariCagliariItaly
| | - Katie J. Klephan
- Newcastle UniversitySchool of Biomedical, Nutritional, and Sport SciencesNewcastle upon TyneUK
- Present address:
AccuRXLondonLondonUK
| | - Claire Hull
- Institute of Medical SciencesUniversity of AberdeenAberdeenUK
| | - Peter Teismann
- Institute of Medical SciencesUniversity of AberdeenAberdeenUK
| | - Bettina Platt
- Institute of Medical SciencesUniversity of AberdeenAberdeenUK
| | - Gernot Riedel
- Institute of Medical SciencesUniversity of AberdeenAberdeenUK
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49
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Jiang Z, Yin X, Wang M, Wang Y, Li F, Gao Y, Han G, Gao Z, Wang Z. β-Hydroxybutyrate alleviates pyroptosis in MPP+/MPTP-induced Parkinson’s disease models via inhibiting STAT3/NLRP3/GSDMD pathway. Int Immunopharmacol 2022; 113:109451. [DOI: 10.1016/j.intimp.2022.109451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/28/2022] [Accepted: 11/10/2022] [Indexed: 11/22/2022]
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50
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Neuroprotective Effects of Nicotinamide against MPTP-Induced Parkinson's Disease in Mice: Impact on Oxidative Stress, Neuroinflammation, Nrf2/HO-1 and TLR4 Signaling Pathways. Biomedicines 2022; 10:biomedicines10112929. [PMID: 36428497 PMCID: PMC9687839 DOI: 10.3390/biomedicines10112929] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/04/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Nicotinamide (NAM) is the amide form of niacin and an important precursor of nicotinamide adenine dinucleotide (NAD), which is needed for energy metabolism and cellular functions. Additionally, it has shown neuroprotective properties in several neurodegenerative diseases. Herein, we sought to investigate the potential protective mechanisms of NAM in an intraperitoneal (i.p) 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinson's disease (PD) mouse model (wild-type mice (C57BL/6N), eight weeks old, average body weight 25-30 g). The study had four groups (n = 10 per group): control, MPTP (30 mg/kg i.p. for 5 days), MPTP treated with NAM (500 mg/kg, i.p for 10 days) and control treated with NAM. Our study showed that MPTP increased the expression of α-synuclein 2.5-fold, decreased tyrosine hydroxylase (TH) 0.5-fold and dopamine transporters (DAT) levels up to 0.5-fold in the striatum and substantia nigra pars compacta (SNpc), and impaired motor function. However, NAM treatment significantly reversed these PD-like pathologies. Furthermore, NAM treatment reduced oxidative stress by increasing the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) between 0.5- and 1.0-fold. Lastly, NAM treatment regulated neuroinflammation by reducing Toll-like receptor 4 (TLR-4), phosphorylated nuclear factor-κB, tumor (p-NFκB), and cyclooxygenase-2 (COX-2) levels by 0.5- to 2-fold in the PD mouse brain. Overall, these findings suggest that NAM exhibits neuroprotective properties and may be an effective therapeutic agent for PD.
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