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Najib NH, Nies YH, Abd Halim SA, Yahaya MF, Das S, Lim WL, Teoh SL. Modeling Parkinson’s Disease in Zebrafish. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 19:386-399. [DOI: 10.2174/1871527319666200708124117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 05/10/2020] [Accepted: 06/17/2020] [Indexed: 01/04/2023]
Abstract
Parkinson’s Disease (PD) is one of the most common neurodegenerative disorders that affects
the motor system, and includes cardinal motor symptoms such as resting tremor, cogwheel rigidity,
bradykinesia and postural instability. Its prevalence is increasing worldwide due to the increase in
life span. Although, two centuries since the first description of the disease, no proper cure with regard
to treatment strategies and control of symptoms could be reached. One of the major challenges faced
by the researchers is to have a suitable research model. Rodents are the most common PD models
used, but no single model can replicate the true nature of PD. In this review, we aim to discuss another
animal model, the zebrafish (Danio rerio), which is gaining popularity. Zebrafish brain has all the major
structures found in the mammalian brain, with neurotransmitter systems, and it also possesses a
functional blood-brain barrier similar to humans. From the perspective of PD research, the zebrafish
possesses the ventral diencephalon, which is thought to be homologous to the mammalian substantia
nigra. We summarize the various zebrafish models available to study PD, namely chemical-induced
and genetic models. The zebrafish can complement the use of other animal models for the mechanistic
study of PD and help in the screening of new potential therapeutic compounds.
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Affiliation(s)
- Nor H.M. Najib
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Yong H. Nies
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Syarifah A.S. Abd Halim
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Mohamad F. Yahaya
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Wei L. Lim
- Department of Biological Sciences, School of Science and Technology, Sunway University, Selangor, Malaysia
| | - Seong L. Teoh
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Cristina TP, Pablo M, Teresa PM, Lydia VD, Irene AR, Araceli AC, Inmaculada BB, Marta BT, Dolores BR, José CAM, Rocío GR, José GRP, Ismael HF, Silvia J, Labrador MAE, Lydia LM, Carlos MCJ, Posada IJ, Ana RS, Cristina RH, Javier DV, Gómez-Garre P. A genetic analysis of a Spanish population with early onset Parkinson's disease. PLoS One 2020; 15:e0238098. [PMID: 32870915 PMCID: PMC7462269 DOI: 10.1371/journal.pone.0238098] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 08/10/2020] [Indexed: 12/13/2022] Open
Abstract
Introduction Both recessive and dominant genetic forms of Parkinson’s disease have been described. The aim of this study was to assess the contribution of several genes to the pathophysiology of early onset Parkinson’s disease in a cohort from central Spain. Methods/patients We analyzed a cohort of 117 unrelated patients with early onset Parkinson’s disease using a pipeline, based on a combination of a next-generation sequencing panel of 17 genes previously related with Parkinson’s disease and other Parkinsonisms and CNV screening. Results Twenty-six patients (22.22%) carried likely pathogenic variants in PARK2, LRRK2, PINK1, or GBA. The gene most frequently mutated was PARK2, and p.Asn52Metfs*29 was the most common variation in this gene. Pathogenic variants were not observed in genes SNCA, FBXO7, PARK7, HTRA2, DNAJC6, PLA2G6, and UCHL1. Co-occurrence of pathogenic variants involving two genes was observed in ATP13A2 and PARK2 genes, as well as LRRK2 and GIGYF2 genes. Conclusions Our results contribute to the understanding of the genetic architecture associated with early onset Parkinson’s disease, showing both PARK2 and LRRK2 play an important role in Spanish Parkinson’s disease patients. Rare variants in ATP13A2 and GIGYF2 may contribute to PD risk. However, a large proportion of genetic components remains unknown. This study might contribute to genetic diagnosis and counseling for families with early onset Parkinson’s disease.
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Affiliation(s)
- Tejera-Parrado Cristina
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Mir Pablo
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- * E-mail: (PG-G); (MP)
| | - Periñán María Teresa
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | | | - Abreu-Rodríguez Irene
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | | | - Bernal-Bernal Inmaculada
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Bonilla-Toribio Marta
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Buiza-Rueda Dolores
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | | | | | | | - Huertas-Fernández Ismael
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Jesús Silvia
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Miguel A-Espinosa Labrador
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | | | | | - Ignacio J. Posada
- Servicio de Neurología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | | | - Del Val Javier
- Servicio de Neurología, Fundación Jiménez Díaz, Madrid, Spain
| | - Pilar Gómez-Garre
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- * E-mail: (PG-G); (MP)
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Li N, Wang L, Zhang J, Tan EK, Li J, Peng J, Duan L, Chen C, Zhou D, He L, Peng R. Whole-exome sequencing in early-onset Parkinson's disease among ethnic Chinese. Neurobiol Aging 2020; 90:150.e5-150.e11. [DOI: 10.1016/j.neurobiolaging.2019.12.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 12/27/2019] [Indexed: 12/18/2022]
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Phenotypic Landscape of Schizophrenia-Associated Genes Defines Candidates and Their Shared Functions. Cell 2019; 177:478-491.e20. [PMID: 30929901 DOI: 10.1016/j.cell.2019.01.048] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/15/2018] [Accepted: 01/27/2019] [Indexed: 01/25/2023]
Abstract
Genomic studies have identified hundreds of candidate genes near loci associated with risk for schizophrenia. To define candidates and their functions, we mutated zebrafish orthologs of 132 human schizophrenia-associated genes. We created a phenotype atlas consisting of whole-brain activity maps, brain structural differences, and profiles of behavioral abnormalities. Phenotypes were diverse but specific, including altered forebrain development and decreased prepulse inhibition. Exploration of these datasets identified promising candidates in more than 10 gene-rich regions, including the magnesium transporter cnnm2 and the translational repressor gigyf2, and revealed shared anatomical sites of activity differences, including the pallium, hypothalamus, and tectum. Single-cell RNA sequencing uncovered an essential role for the understudied transcription factor znf536 in the development of forebrain neurons implicated in social behavior and stress. This phenotypic landscape of schizophrenia-associated genes prioritizes more than 30 candidates for further study and provides hypotheses to bridge the divide between genetic association and biological mechanism.
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The genetics of Parkinson disease. Ageing Res Rev 2018; 42:72-85. [PMID: 29288112 DOI: 10.1016/j.arr.2017.12.007] [Citation(s) in RCA: 330] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/18/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022]
Abstract
About 15% of patients with Parkinson disease (PD) have family history and 5-10% have a monogenic form of the disease with Mendelian inheritance. To date, at least 23 loci and 19 disease-causing genes for parkinsonism have been found, but many more genetic risk loci and variants for sporadic PD phenotype have been identified in various association studies. Investigating the mutated protein products has uncovered potential pathogenic pathways that provide insights into mechanisms of neurodegeneration in familial and sporadic PD. To commemorate the 200th anniversary of Parkinson's publication of An Essay on the Shaking Palsy, we provide a comprehensive and critical overview of the current clinical, neuropathological, and genetic understanding of genetic forms of PD. We also discuss advances in screening for genetic PD-related risk factors and how they impact genetic counseling and contribute to the development of potential disease-modifying therapies.
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Huo Z, Luo X, Zhan X, Chu Q, Xu Q, Yao J, Pang H. Genetic analysis of indel markers in three loci associated with Parkinson's disease. PLoS One 2017; 12:e0184269. [PMID: 28873462 PMCID: PMC5584932 DOI: 10.1371/journal.pone.0184269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 08/21/2017] [Indexed: 11/19/2022] Open
Abstract
The causal mutations and genetic polymorphisms associated with susceptibility to Parkinson’s disease (PD) have been extensively described. To explore the potential contribution of insertion (I)/deletion (D) polymorphisms (indels) to the risk of PD in a Chinese population, we performed genetic analyses of indel loci in ACE, DJ-1, and GIGYF2 genes. Genomic DNA was extracted from venous blood of 348 PD patients and 325 age- and sex-matched controls without neurodegenerative disease. Genotyping of the indel loci was performed by fragment length analysis after PCR and DNA sequencing. Our results showed a statistically significant association for both allele X (alleles without 5) vs. 5 (odds ratio = 1.378, 95% confidence interval = 1.112–1.708, P = 0.003) and genotype 5/X+X/X vs. 5/5 (odds ratio = 1.681, 95% confidence interval = 1.174–2.407, P = 0.004) in the GIGYF2 locus; however, no significant differences were detected for the ACE and DJ-1 indels. After stratification by gender, no significant differences were observed in any indels. These results indicate that the GIGYF2 indel may be associated with increased risk of PD in northern China.
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Affiliation(s)
- Zhixin Huo
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
| | - Xiaoguang Luo
- Department of Neurology, 1st Affiliated Hospital of China Medical University, Shenyang, P.R., China
| | - Xiaoni Zhan
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
| | - Qiaohong Chu
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
| | - Qin Xu
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
| | - Jun Yao
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
| | - Hao Pang
- Department of Forensic Genetics and Biology, China Medical University, Shenyang North New Area, Shenyang, P.R., China
- * E-mail:
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Regeneration, Plasticity, and Induced Molecular Programs in Adult Zebrafish Brain. BIOMED RESEARCH INTERNATIONAL 2015; 2015:769763. [PMID: 26417601 PMCID: PMC4568348 DOI: 10.1155/2015/769763] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 09/25/2014] [Accepted: 09/25/2014] [Indexed: 12/20/2022]
Abstract
Regenerative capacity of the brain is a variable trait within animals. Aquatic vertebrates such as zebrafish have widespread ability to renew their brains upon damage, while mammals have—if not none—very limited overall regenerative competence. Underlying cause of such a disparity is not fully evident; however, one of the reasons could be activation of peculiar molecular programs, which might have specific roles after injury or damage, by the organisms that regenerate. If this hypothesis is correct, then there must be genes and pathways that (a) are expressed only after injury or damage in tissues, (b) are biologically and functionally relevant to restoration of neural tissue, and (c) are not detected in regenerating organisms. Presence of such programs might circumvent the initial detrimental effects of the damage and subsequently set up the stage for tissue redevelopment to take place by modulating the plasticity of the neural stem/progenitor cells. Additionally, if transferable, those “molecular mechanisms of regeneration” could open up new avenues for regenerative therapies of humans in clinical settings. This review focuses on the recent studies addressing injury/damage-induced molecular programs in zebrafish brain, underscoring the possibility of the presence of genes that could be used as biomarkers of neural plasticity and regeneration.
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The contribution of GIGYF2 to Parkinson's disease: a meta-analysis. Neurol Sci 2015; 36:2073-9. [PMID: 26152800 DOI: 10.1007/s10072-015-2316-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 06/30/2015] [Indexed: 01/11/2023]
Abstract
The contribution of the gene of GIGYF2, Grb10-Interacting GYF Protein 2, to Parkinson's disease (PD) is still ambiguous. To explore the contribution of GIGYF2 to PD at the genetic level, we analyzed the relationship between all reported GIGYF2 variants (including mutations and polymorphisms) and PD through a meta-analysis. Databases including Medline, Embase, etc., were searched to find relevant studies. All eligible publications have to meet the strict inclusion and exclusion criteria listed. Two authors independently selected trials, assessed the article's quality and extracted data. Odds ratios (ORs) and relative risks with 95 % confidence intervals (CIs) were used to evaluate the strength of associations. All analyses were carried out by using the Review Manager software package v.5.2. More than 100 variants of GIGYF2 were reported either or both in patients and controls in 10 included publications. The 10 publications totally included 5466 patients and 6517 controls. We conducted meta-analyses for the following variants: N56S, N457T, Del LPQQQQQQ 1209-1216, Del Q 1210 (rs10555297), rs12328151, rs2289912, rs2305138, rs3816334, A572A and H1171R. The ORs for N56S were 2.86 (95 % CI 1.10, 7.41) for PD and 4.75 (95 % CI 1.35, 16.68) for FPD. And the OR for N457T in FPD was 4.53 (95 % CI 1.04, 19.66). On the other hand, other variants involved in meta-analyses were not related to PD. This research results suggest that the N56S and N457T of GIGYF2 are risk factors for PD in Caucasians, but not in Asians.
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Xie J, Wei Q, Deng H, Li G, Ma L, Zeng H. Negative regulation of Grb10 Interacting GYF Protein 2 on insulin-like growth factor-1 receptor signaling pathway caused diabetic mice cognitive impairment. PLoS One 2014; 9:e108559. [PMID: 25268761 PMCID: PMC4182477 DOI: 10.1371/journal.pone.0108559] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 08/25/2014] [Indexed: 12/28/2022] Open
Abstract
Heterozygous Gigyf2⁺/⁻ mice exhibits histopathological evidence of neurodegeneration such as motor dysfunction. Several lines of evidence have demonstrated the important role of insulin-like growth factor-1 receptor (IGF1R) signaling pathway in the neuropathogenic process of cognitive impairment, while decreased Grb10-Interacting GYF Protein 2 (GIGYF2) expression can alter IGF1R trafficking and its downstream signaling pathways. Growth factor receptor-bound protein 10 (Grb10), a suppressor of IGF1R pathway, has been shown to play a critical role in regulating diabetes-associated cognitive impairment. It remains unknown whether endogenous GIGYF2 expression contributes to the development of diabetes-associated cognitive impairment. Using streptozotocin (STZ)-induced diabetic mice model, we first demonstrated that a significantly increased level of GIGYF2 expression was correlated with a significant decrease in the expression of phosphorylated IGF1R as well as the phosphorylation of AKT and ERK1/2, two signaling pathways downstream of IGF1R, in the hippocampus of diabetic mice. On the contrary, in situ knockdown of GIGYF2 expression in hippocampus resulted in increased expression of phosphorylated IGF1R expression and correspondingly reversed the down-regulation of ERK1/2 phsophorylation but had no obvious effect on Grb10 expression. Functionally, knockdown of GIGYF2 expression markedly ameliorated diabetes-associated cognitive dysfunction as well as the ultrastructural pathology and abnormal neurobehavioral changes. These results suggest that increased expression of GIGYF2 might contribute to the development of diabetes-associated cognitive disorder via negatively regulating IGF1R signaling pathway. Therefore, down-regulation of GIGYF2 expression may provide a potential novel approach to treat diabetes-associated cognitive impairment caused by aberrant IGF1R signaling pathway.
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MESH Headings
- Animals
- Carrier Proteins/agonists
- Carrier Proteins/antagonists & inhibitors
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cognition
- Cognition Disorders/complications
- Cognition Disorders/genetics
- Cognition Disorders/physiopathology
- Cognition Disorders/therapy
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/physiopathology
- GRB10 Adaptor Protein/genetics
- GRB10 Adaptor Protein/metabolism
- Gene Expression Regulation
- Genetic Therapy
- Hippocampus/metabolism
- Hippocampus/physiopathology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitogen-Activated Protein Kinase 1/genetics
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/genetics
- Mitogen-Activated Protein Kinase 3/metabolism
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Receptors, Somatomedin/genetics
- Receptors, Somatomedin/metabolism
- Signal Transduction
- Streptozocin
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Affiliation(s)
- Jing Xie
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qianping Wei
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Huacong Deng
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Gang Li
- Department of Mental Health, The Mental Health Center of Jiulongpo District, Chongqing, China
| | - Lingli Ma
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hui Zeng
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Dai D, Wang Y, Zhou X, Tao J, Jiang D, Zhou H, Jiang Y, Pan G, Ru P, Ji H, Li J, Zhang Y, Yin H, Xu M, Duan S. Meta-analyses of seven GIGYF2 polymorphisms with Parkinson's disease. Biomed Rep 2014; 2:886-892. [PMID: 25279164 DOI: 10.3892/br.2014.324] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 07/08/2014] [Indexed: 12/11/2022] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder that affects ~2% of the global population aged ≥65 years. Grb10-interacting GYF protein-2 (GIGYF2) can influence the development of PD through the regulation of insulin-like growth factor-1. The aim of the present meta-analysis study was to establish the contribution of GIGYF2 polymorphisms to PD. The study was conducted based on nine eligible studies consisting of 7,246 PD patients and 7,544 healthy controls. The results indicated that the GIGYF2 C.3630A>G polymorphism increased the risk of PD by 37% [P=0.008; odds ratio (OR), 1.37; 95% confidence interval (CI), 1.08-1.73] and that the GIGYF2 C.167G>A polymorphism was significantly associated with PD (P=0.003; OR, 3.67; 95% CI, 1.56-8.68). The meta-analyses of the other five GIGYF2 polymorphisms (C.1378C>A, C.1554G>A, C.2940A>G, C.1370C>A and C.3651G>A) did not reveal any significant associations. The present meta-analyses of the GIGYF2 genetic polymorphisms may provide a comprehensive overview of this PD candidate gene for future studies.
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Affiliation(s)
- Dongjun Dai
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Yunliang Wang
- Department of Neurology, The 148 Central Hospital of People's Liberation Army, Zibo, Shandong 255300, P.R. China
| | - Xingyu Zhou
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Jianmin Tao
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Danjie Jiang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Hanlin Zhou
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Yi Jiang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Guanghui Pan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Ping Ru
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Huihui Ji
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
| | - Jinfeng Li
- Department of Neurology, The 148 Central Hospital of People's Liberation Army, Zibo, Shandong 255300, P.R. China
| | - Yuzheng Zhang
- Department of Neurology, The 148 Central Hospital of People's Liberation Army, Zibo, Shandong 255300, P.R. China
| | - Honglei Yin
- Department of Neurology, The 148 Central Hospital of People's Liberation Army, Zibo, Shandong 255300, P.R. China
| | - Mingqing Xu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Xuhui, Shanghai 200240, P.R. China
| | - Shiwei Duan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
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Chai C, Lim KL. Genetic insights into sporadic Parkinson's disease pathogenesis. Curr Genomics 2014; 14:486-501. [PMID: 24532982 PMCID: PMC3924245 DOI: 10.2174/1389202914666131210195808] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 09/09/2013] [Accepted: 10/22/2013] [Indexed: 12/23/2022] Open
Abstract
Intensive research over the last 15 years has led to the identification of several autosomal recessive and dominant
genes that cause familial Parkinson’s disease (PD). Importantly, the functional characterization of these genes has
shed considerable insights into the molecular mechanisms underlying the etiology and pathogenesis of PD. Collectively;
these studies implicate aberrant protein and mitochondrial homeostasis as key contributors to the development of PD, with
oxidative stress likely acting as an important nexus between the two pathogenic events. Interestingly, recent genome-wide
association studies (GWAS) have revealed variations in at least two of the identified familial PD genes (i.e. α-synuclein
and LRRK2) as significant risk factors for the development of sporadic PD. At the same time, the studies also uncovered
variability in novel alleles that is associated with increased risk for the disease. Additionally, in-silico meta-analyses of
GWAS data have allowed major steps into the investigation of the roles of gene-gene and gene-environment interactions
in sporadic PD. The emergent picture from the progress made thus far is that the etiology of sporadic PD is multi-factorial
and presumably involves a complex interplay between a multitude of gene networks and the environment. Nonetheless,
the biochemical pathways underlying familial and sporadic forms of PD are likely to be shared.
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Affiliation(s)
- Chou Chai
- Duke-NUS Graduate Medical School, Singapore
| | - Kah-Leong Lim
- Duke-NUS Graduate Medical School, Singapore ; Department of Physiology, National University of Singapore, Singapore ; Neurodegeneration Research Laboratory, National Neuroscience Institute, Singapore
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Follow-up study of variants of the GIGYF2 gene in Chinese patients with Parkinson’s disease. J Clin Neurosci 2012; 18:1699-701. [PMID: 22115759 DOI: 10.1016/j.jocn.2011.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 05/21/2011] [Accepted: 05/29/2011] [Indexed: 11/20/2022]
Abstract
The Grb10-interacting GYF protein-2 gene (GIGYF2) is a PARK11 gene that reportedly has a causal role in familial Parkinson’s disease (PD) among populations from Italy and France. However, no comprehensive study of the GIGYF2 gene has been conducted among PD patients from mainland China. In our previous study, the GIGYF2 gene was directly sequenced, and nine missense variants and 14 polymorphisms were identified. For these 14 polymorphisms, in the present study we performed a case–control analysis for 300 PD patients and 200 healthy controls from mainland China. The c.297T>C p.Ala99Ala polymorphism was associated with increased risk with respect to the pathogenesis of sporadic PD. In conclusion, within the Chinese population, the c.297T>C p.Ala99Ala polymorphism of the GIGYF2 gene may be associated with an increased risk of developing PD.
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Soldà G, Robusto M, Primignani P, Castorina P, Benzoni E, Cesarani A, Ambrosetti U, Asselta R, Duga S. A novel mutation within the MIR96 gene causes non-syndromic inherited hearing loss in an Italian family by altering pre-miRNA processing. Hum Mol Genet 2011; 21:577-85. [PMID: 22038834 PMCID: PMC3259013 DOI: 10.1093/hmg/ddr493] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The miR-96, miR-182 and miR-183 microRNA (miRNA) family is essential for differentiation and function of the vertebrate inner ear. Recently, point mutations within the seed region of miR-96 were reported in two Spanish families with autosomal dominant non-syndromic sensorineural hearing loss (NSHL) and in a mouse model of NSHL. We screened 882 NSHL patients and 836 normal-hearing Italian controls and identified one putative novel mutation within the miR-96 gene in a family with autosomal dominant NSHL. Although located outside the mature miR-96 sequence, the detected variant replaces a highly conserved nucleotide within the companion miR-96*, and is predicted to reduce the stability of the pre-miRNA hairpin. To evaluate the effect of the detected mutation on miR-96/mir-96* biogenesis, we investigated the maturation of miR-96 by transient expression in mammalian cells, followed by real-time reverse-transcription polymerase chain reaction (PCR). We found that both miR-96 and miR-96* levels were significantly reduced in the mutant, whereas the precursor levels were unaffected. Moreover, miR-96 and miR-96* expression levels could be restored by a compensatory mutation that reconstitutes the secondary structure of the pre-miR-96 hairpin, demonstrating that the mutation hinders precursor processing, probably interfering with Dicer cleavage. Finally, even though the mature miR-96 sequence is not altered, we demonstrated that the identified mutation significantly impacts on miR-96 regulation of selected targets. In conclusion, we provide further evidence of the involvement of miR-96 mutations in human deafness and demonstrate that a quantitative defect of this miRNA may contribute to NSHL.
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Affiliation(s)
- Giulia Soldà
- Dipartimento di Biologia e Genetica per Scienze Mediche, Università degli Studi di Milano, Milan, Italy.
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Abstract
The zebrafish, Danio rerio, has been established as an excellent vertebrate model for the study of developmental biology and gene function. It also has proven to be a valuable model to study human diseases. Here, we reviewed recent publications using zebrafish to study the pathology of human neurodegenerative diseases including Parkinson's, Huntington's, and Alzheimer's. These studies indicate that zebrafish genes and their human homologues have conserved functions with respect to the etiology of neurodegenerative diseases. The characteristics of the zebrafish and the experimental approaches to which it is amenable make this species a useful complement to other animal models for the study of pathologic mechanisms of neurodegenerative diseases and for the screening of compounds with therapeutic potential.
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Affiliation(s)
- Yanwei Xi
- Department of Biology, Center for Advanced Research in Environmental Genomics, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N6N5, Canada
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