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Magistrelli L, Ferrari M, Furgiuele A, Milner AV, Contaldi E, Comi C, Cosentino M, Marino F. Polymorphisms of Dopamine Receptor Genes and Parkinson's Disease: Clinical Relevance and Future Perspectives. Int J Mol Sci 2021; 22:ijms22073781. [PMID: 33917417 PMCID: PMC8038729 DOI: 10.3390/ijms22073781] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/26/2021] [Accepted: 04/01/2021] [Indexed: 12/20/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disease caused by loss of dopaminergic neurons in the midbrain. PD is clinically characterized by a variety of motor and nonmotor symptoms, and treatment relies on dopaminergic replacement. Beyond a common pathological hallmark, PD patients may present differences in both clinical progression and response to drug therapy that are partly affected by genetic factors. Despite extensive knowledge on genetic variability of dopaminergic receptors (DR), few studies have addressed their relevance as possible influencers of clinical heterogeneity in PD patients. In this review, we summarized available evidence regarding the role of genetic polymorphisms in DR as possible determinants of PD development, progression and treatment response. Moreover, we examined the role of DR in the modulation of peripheral immunity, in light of the emerging role of the peripheral immune system in PD pathophysiology. A better understanding of all these aspects represents an important step towards the development of precise and personalized disease-modifying therapies for PD.
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Affiliation(s)
- Luca Magistrelli
- PhD Program in Clinical and Experimental Medicine and Medical Humanities, University of Insubria, 21100 Varese, Italy; (L.M.); (A.F.)
- Movement Disorders Centre, Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy; (A.V.M.); (E.C.)
| | - Marco Ferrari
- Centre of Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy; (M.F.); (M.C.); (F.M.)
| | - Alessia Furgiuele
- PhD Program in Clinical and Experimental Medicine and Medical Humanities, University of Insubria, 21100 Varese, Italy; (L.M.); (A.F.)
- Centre of Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy; (M.F.); (M.C.); (F.M.)
| | - Anna Vera Milner
- Movement Disorders Centre, Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy; (A.V.M.); (E.C.)
| | - Elena Contaldi
- Movement Disorders Centre, Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy; (A.V.M.); (E.C.)
- PhD Program in Medical Sciences and Biotechnology, University of Piemonte Orientale, 28100 Novara, Italy
| | - Cristoforo Comi
- Movement Disorders Centre, Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy; (A.V.M.); (E.C.)
- Centre of Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy; (M.F.); (M.C.); (F.M.)
- Correspondence:
| | - Marco Cosentino
- Centre of Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy; (M.F.); (M.C.); (F.M.)
- Center of Research in Neuroscience, University of Insubria, 21100 Varese, Italy
| | - Franca Marino
- Centre of Research in Medical Pharmacology, University of Insubria, 21100 Varese, Italy; (M.F.); (M.C.); (F.M.)
- Center of Research in Neuroscience, University of Insubria, 21100 Varese, Italy
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Wang XX, Feng Y, Li X, Zhu XY, Truong D, Ondo WG, Wu YC. Prodromal Markers of Parkinson's Disease in Patients With Essential Tremor. Front Neurol 2020; 11:874. [PMID: 32982913 PMCID: PMC7477377 DOI: 10.3389/fneur.2020.00874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Essential tremor (ET) is manifested as an isolated syndrome of bilateral upper limb action tremor. Parkinson's disease (PD) is the second most common neurodegenerative disease, with typical motor symptoms of bradykinesia, rigidity, and resting tremor. ET-PD describes the new-onset of PD in ET patients. Recently, numerous studies on epidemiology, genetics, pathology, clinical features, and neuroimaging studies are challenging the idea that ET is an isolated disease, suggesting that patients with ET have the tendency to develop PD. Methods: In this review article, we collected recent findings that reveal prodromal markers of PD in patients with ET. Results: Substantia nigra hyperechogenicity serves as a prodromal marker for predicting the development of PD in patients with ET and provides a reference for therapeutic strategies. Additional potential markers include other neuroimaging, clinical features, heart rate, and genetics, whereas others lack sufficient evidence. Conclusion: In consideration of the limited research of PD in patients with ET, we are still far from revealing the prodromal markers. However, from the existing follow-up studies on ET patients, Substantia nigra hyperechogenicity may enable further exploration of the relationship between ET and PD and the search for pathogenesis-based therapies.
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Affiliation(s)
- Xi-Xi Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai General Hospital of Nanjing Medical University, Nanjing, China
| | - Ya Feng
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuan Li
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Ying Zhu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Daniel Truong
- Orange Coast Memorial Medical Center, The Truong Neurosciences Institute, Fountain Valley, CA, United States.,Department of Neurosciences and Psychiatry, University of California, Riverside, Riverside, CA, United States
| | - William G Ondo
- Weill Cornell Medical School, Methodist Neurological Institute, Houston, TX, United States
| | - Yun-Cheng Wu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yang P, Perlmutter JS, Benzinger TLS, Morris JC, Xu J. Dopamine D3 receptor: A neglected participant in Parkinson Disease pathogenesis and treatment? Ageing Res Rev 2020; 57:100994. [PMID: 31765822 PMCID: PMC6939386 DOI: 10.1016/j.arr.2019.100994] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/13/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022]
Abstract
Parkinson disease (PD) is a neurodegenerative disorder characterized by motor and non-motor symptoms which relentlessly and progressively lead to substantial disability and economic burden. Pathologically, these symptoms follow the loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) associated with abnormal α-synuclein (α-Syn) deposition as cytoplasmic inclusions called Lewy bodies in pigmented brainstem nuclei, and in dystrophic neurons in striatal and cortical regions (Lewy neurites). Pharmacotherapy for PD focuses on improving quality of life and primarily targets dopaminergic pathways. Dopamine acts through two families of receptors, dopamine D1-like and dopamine D2-like; dopamine D3 receptors (D3R) belong to dopamine D2 receptor (D2R) family. Although D3R's precise role in the pathophysiology and treatment of PD has not been determined, we present evidence suggesting an important role for D3R in the early development and occurrence of PD. Agonist activation of D3R increases dopamine concentration, decreases α-Syn accumulation, enhances secretion of brain derived neurotrophic factors (BDNF), ameliorates neuroinflammation, alleviates oxidative stress, promotes neurogenesis in the nigrostriatal pathway, interacts with D1R to reduce PD associated motor symptoms and ameliorates side effects of levodopa (L-DOPA) treatment. Furthermore, D3R mutations can predict PD age of onset and prognosis of PD treatment. The role of D3R in PD merits further research. This review elucidates the potential role of D3R in PD pathogenesis and therapy.
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Affiliation(s)
- Pengfei Yang
- Department of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA
| | - Joel S Perlmutter
- Department of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA; Department of Neurology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA; Department of Neuroscience, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA; Department of Physical Therapy, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA; Department of Occupational Therapy, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA
| | - Tammie L S Benzinger
- Department of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA
| | - John C Morris
- Department of Neurology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA
| | - Jinbin Xu
- Department of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, St. Louis, MO 63110, USA.
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Tarakad A, Jankovic J. Essential Tremor and Parkinson's Disease: Exploring the Relationship. Tremor Other Hyperkinet Mov (N Y) 2019; 8:589. [PMID: 30643667 PMCID: PMC6329774 DOI: 10.7916/d8md0gvr] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/04/2018] [Indexed: 12/31/2022] Open
Abstract
Background There is longstanding controversy surrounding the possible link between essential tremor (ET) and Parkinson's disease (PD). Inconsistent and unreliable diagnostic criteria may in part account for some of the difficulties in defining the relationship between these two common movement disorders. Methods References for this systematic review were identified using PubMed with the search terms "essential tremor" AND "Parkinson's disease" with articles published in English between 1960 and September 2018 included. Results In this review we provide evidence that some patients diagnosed with ET have an increased risk of developing PD years or decades after onset of action tremor. There are several still unresolved questions about the link between the two disorders including lack of verifiable diagnostic criteria for the two disorders and marked overlap in phenomenology. Here we review clinical, epidemiologic, imaging, pathologic, and genetic studies that address the ET-PD relationship. Several lines of evidence support the association between ET and PD, including overlapping motor and non-motor features, relatively high prevalence of rapid eye movement sleep behavior disorder (26-43%) in ET patients, increased prevalence of PD in patients with longstanding antecedent ET, increased prevalence of ET in family members of patients with PD, and the presence of Lewy bodies in the brains of some ET patients (15-24%). Discussion There is a substantial body of evidence supporting the association between ET and PD within at least a subset of patients, although the nature and possible pathogenic mechanisms of the relationship are not well understood.
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Affiliation(s)
- Arjun Tarakad
- Parkinson’s Disease Center and Movement Disorders Clinic, Baylor College of Medicine Houston, TX, USA
| | - Joseph Jankovic
- Parkinson’s Disease Center and Movement Disorders Clinic, Baylor College of Medicine Houston, TX, USA
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Schmouth JF, Dion PA, Rouleau GA. Genetics of essential tremor: From phenotype to genes, insights from both human and mouse studies. Prog Neurobiol 2014; 119-120:1-19. [DOI: 10.1016/j.pneurobio.2014.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/16/2014] [Accepted: 05/02/2014] [Indexed: 11/30/2022]
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Liang H, Zheng W, Xu H, Lei J, Song Z, Jiang X, Zeng Z, Deng H. No evidence of association between the LINGO4 gene and essential tremor in Chinese Han patients. Parkinsonism Relat Disord 2011; 18:303-5. [PMID: 22104011 DOI: 10.1016/j.parkreldis.2011.10.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 10/01/2011] [Accepted: 10/28/2011] [Indexed: 12/17/2022]
Abstract
Essential tremor (ET) is shown an autosomal dominant mode of inheritance, with no disease-causing gene has been found. Genetic variations in the leucine-rich repeat and lg domain containing nogo receptor-interacting protein genes (LINGO1 and LINGO2) were reported to be associated with an increased risk of developing ET. To explore whether the LINGO4 gene (a homologous gene of the LINGO1 and the LINGO2 genes) plays a role in ET susceptibility, we performed genetic analysis of coding region of the LINGO4 gene in 100 patients with ET from Mainland China. Two nucleotide variants had been identified: (1) T > A transition (rs61746299), predicted to lead to the amino acid change Thr444Ser, and (2) C > T transition (rs1521179), located 12 bp downstream to the end of coding region. To evaluate whether these variants are related to ET susceptibility, we investigated a total of 150 Chinese Han ET patients (77 familial ET and 73 sporadic ET) and 300 sex, age and ethnicity matched normal controls. No significant differences in genotypic and allele distributions between patients and control subjects for rs61746299 and rs1521179 (p = 0.531 and p = 0.867 for genotypic distributions; p = 1.000 and p = 0.844 for allele distributions) were observed, suggesting variants in coding region of the LINGO4 gene may play litter or no role in the risk of ET susceptibility.
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Affiliation(s)
- Hui Liang
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
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Current World Literature. Curr Opin Neurol 2011; 24:409-13. [DOI: 10.1097/wco.0b013e3283499d51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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