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Ruan DD, Zou J, Liao LS, Ji MD, Wang RL, Zhang JH, Zhang L, Gao MZ, Chen Q, Yu HP, Wei W, Li YF, Li H, Lin F, Luo JW, Lin XF. In vitro study of ATP1A3 p.Ala275Pro mutant causing alternating hemiplegia of childhood and rapid-onset dystonia-parkinsonism. Front Neurosci 2024; 18:1415576. [PMID: 39145297 PMCID: PMC11322359 DOI: 10.3389/fnins.2024.1415576] [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: 04/10/2024] [Accepted: 07/11/2024] [Indexed: 08/16/2024] Open
Abstract
Introduction We previously reported that ATP1A3 c.823G>C (p.Ala275Pro) mutant causes varying phenotypes of alternative hemiplegia of childhood and rapid-onset dystonia-parkinsonism in the same family. This study aims to investigate the function of ATP1A3 c.823G>C (p.Ala275Pro) mutant at the cellular and zebrafish models. Methods ATP1A3 wild-type and mutant Hela cell lines were constructed, and ATP1A3 mRNA expression, ATP1A3 protein expression and localization, and Na+-K+-ATPase activity in each group of cells were detected. Additionally, we also constructed zebrafish models with ATP1A3 wild-type overexpression (WT) and p.Ala275Pro mutant overexpression (MUT). Subsequently, we detected the mRNA expression of dopamine signaling pathway-associated genes, Parkinson's disease-associated genes, and apoptosisassociated genes in each group of zebrafish, and observed the growth, development, and movement behavior of zebrafish. Results Cells carrying the p.Ala275Pro mutation exhibited lower levels of ATP1A3 mRNA, reduced ATP1A3 protein expression, and decreased Na+-K+-ATPase activity compared to wild-type cells. Immunofluorescence analysis revealed that ATP1A3 was primarily localized in the cytoplasm, but there was no significant difference in ATP1A3 protein localization before and after the mutation. In the zebrafish model, both WT and MUT groups showed lower brain and body length, dopamine neuron fluorescence intensity, escape ability, swimming distance, and average swimming speed compared to the control group. Moreover, overexpression of both wild-type and mutant ATP1A3 led to abnormal mRNA expression of genes associated with the dopamine signaling pathway and Parkinson's disease in zebrafish, and significantly upregulated transcription levels of bad and caspase-3 in the apoptosis signaling pathway, while reducing the transcriptional level of bcl-2 and the bcl-2/bax ratio. Conclusion This study reveals that the p.Ala275Pro mutant decreases ATP1A3 protein expression and Na+/K+-ATPase activity. Abnormal expression of either wild-type or mutant ATP1A3 genes impairs growth, development, and movement behavior in zebrafish.
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Affiliation(s)
- Dan-dan Ruan
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jing Zou
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Li-sheng Liao
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Hematology, Fujian Provincial Hospital, Fuzhou, China
| | - Ming-dong Ji
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Ruo-li Wang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Emergency, Fujian Provincial Hospital, Fuzhou, China
| | - Jian-hui Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Li Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Nephrology, Fujian Provincial Hospital, Fuzhou, China
| | - Mei-zhu Gao
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Nephrology, Fujian Provincial Hospital, Fuzhou, China
| | - Qian Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Hong-ping Yu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Wen Wei
- Department of Rehabilitation Medicine, Ganzhou Municipal Hospital, Ganzhou, China
| | - Yun-fei Li
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Neurology, Fujian Provincial Hospital, Fuzhou, China
| | - Hong Li
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Fan Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Geriatric Medicine, Fujian Provincial Center for Geriatrics, Fujian Provincial Hospital, Fuzhou, China
| | - Jie-wei Luo
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Xin-fu Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Pediatrics Department, Fujian Provincial Hospital, Fuzhou, China
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Muthaffar OY, Alqarni A, Shafei JA, Bahowarth SY, Alyazidi AS, Naseer MI. Childhood-related neural genotype-phenotype in ATP1A3 mutations: comprehensive analysis. Genes Genomics 2024; 46:475-487. [PMID: 38243045 DOI: 10.1007/s13258-023-01481-8] [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: 09/10/2023] [Accepted: 12/07/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND ATP1A3 is a gene that encodes the ATPase Na + /K + transporting subunit alpha-3 isoenzyme that is widely expressed in GABAergic neurons. It maintains metabolic balance and neurotransmitter movement. These pathways are essential for the proper functioning of the nervous system. A mutation in the ATP1A3 gene demonstrates remarkable genotype-phenotype heterogeneity. OBJECTIVES To provide insight into patients with ATP1A3 mutation. MATERIAL AND METHODS These cases were identified using next generation sequencing. The patients' clinical and genetic data were retrieved. Detailed revision of the literature was conducted to illustrate and compare findings. The clinical, genetical, neuroimaging, and electrophysiological data of all pediatric patients were extracted. RESULTS The study included 14 females and 12 males in addition to two novel females cases. Their mean current age is 6.3 ± 4.24 years. There were 11.54% preterm pregnancies with 5 cases reporting pregnancy complications. Mean age of seizure onset was 1.07 ± 1.06 years. Seizure semiology included generalized tonic-clonic, staring spells, tonic-clonic, and others. Levetiracetam was the most frequently used Anti-seizure medication. The three most frequently reported classical symptoms included alternating hemiplegia of childhood (50%), cerebellar ataxia (50%), and optic atrophy (23.08%). Non-classical symptoms included dystonia (73.08%), paroxysmal dyskinesias (34.62%), and encephalopathy (26.92%). Developmental delay was reported among 84.62% in cognitive, 92.31% in sensorimotor, 80.77% in speech, and 76.92% in socioemotional. EEG and MRI were non-specific. CONCLUSION Our study demonstrated high heterogeneity among patients with pathogenic variants in the ATP1A3 gene. Such variation is multifactorial and can be a predisposition of wide genetic and clinical variables. Many patients shared few similarities in their genetic map including repeatedly reported de novo, heterozygous, mutations in the gene. Clinically, higher females prevalence of atypical presentation was noted. These findings are validated with prior evidence and the comprehensive analysis in this study.
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Affiliation(s)
- Osama Y Muthaffar
- Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Asma Alqarni
- Department of Neurology, Neuroscience Centre, King Faisal Specialist Hospital & Research Centre, 21313, Jeddah, Saudi Arabia
| | - Jumana A Shafei
- Faculty of Medicine, King Abdulaziz University, 23446, Jeddah, Saudi Arabia
| | - Sarah Y Bahowarth
- Faculty of Medicine, King Abdulaziz University, 23446, Jeddah, Saudi Arabia
| | - Anas S Alyazidi
- Faculty of Medicine, King Abdulaziz University, 23446, Jeddah, Saudi Arabia
| | - Muhammad Imran Naseer
- Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, 21589, Jeddah, Saudi Arabia.
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, 21589, Jeddah, Saudi Arabia.
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Tukacs V, Mittli D, Hunyadi-Gulyás É, Darula Z, Juhász G, Kardos J, Kékesi KA. Comparative analysis of hippocampal extracellular space uncovers widely altered peptidome upon epileptic seizure in urethane-anaesthetized rats. Fluids Barriers CNS 2024; 21:6. [PMID: 38212833 PMCID: PMC10782730 DOI: 10.1186/s12987-024-00508-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: 08/24/2023] [Accepted: 10/31/2023] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND The brain extracellular fluid (ECF), composed of secreted neurotransmitters, metabolites, peptides, and proteins, may reflect brain processes. Analysis of brain ECF may provide new potential markers for synaptic activity or brain damage and reveal additional information on pathological alterations. Epileptic seizure induction is an acute and harsh intervention in brain functions, and it can activate extra- and intracellular proteases, which implies an altered brain secretome. Thus, we applied a 4-aminopyridine (4-AP) epilepsy model to study the hippocampal ECF peptidome alterations upon treatment in rats. METHODS We performed in vivo microdialysis in the hippocampus for 3-3 h of control and 4-AP treatment phase in parallel with electrophysiology measurement. Then, we analyzed the microdialysate peptidome of control and treated samples from the same subject by liquid chromatography-coupled tandem mass spectrometry. We analyzed electrophysiological and peptidomic alterations upon epileptic seizure induction by two-tailed, paired t-test. RESULTS We detected 2540 peptides in microdialysate samples by mass spectrometry analysis; and 866 peptides-derived from 229 proteins-were found in more than half of the samples. In addition, the abundance of 322 peptides significantly altered upon epileptic seizure induction. Several proteins of significantly altered peptides are neuropeptides (Chgb) or have synapse- or brain-related functions such as the regulation of synaptic vesicle cycle (Atp6v1a, Napa), astrocyte morphology (Vim), and glutamate homeostasis (Slc3a2). CONCLUSIONS We have detected several consequences of epileptic seizures at the peptidomic level, as altered peptide abundances of proteins that regulate epilepsy-related cellular processes. Thus, our results indicate that analyzing brain ECF by in vivo microdialysis and omics techniques is useful for monitoring brain processes, and it can be an alternative method in the discovery and analysis of CNS disease markers besides peripheral fluid analysis.
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Affiliation(s)
- Vanda Tukacs
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
- Laboratory of Proteomics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
| | - Dániel Mittli
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
- Laboratory of Proteomics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
| | - Éva Hunyadi-Gulyás
- Laboratory of Proteomics Research, Biological Research Centre, Hungarian Research Network (HUN-REN), Temesvári Körút 62, Szeged, 6726, Hungary
| | - Zsuzsanna Darula
- Laboratory of Proteomics Research, Biological Research Centre, Hungarian Research Network (HUN-REN), Temesvári Körút 62, Szeged, 6726, Hungary
- Single Cell Omics Advanced Core Facility, Hungarian Centre of Excellence for Molecular Medicine, Temesvári Körút 62, Szeged, 6726, Hungary
| | - Gábor Juhász
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
- Laboratory of Proteomics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
- InnoScience Hungary Ltd., Bátori Út 9, Mátranovák, 3142, Hungary
| | - József Kardos
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary
| | - Katalin Adrienna Kékesi
- ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary.
- Laboratory of Proteomics, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary.
- InnoScience Hungary Ltd., Bátori Út 9, Mátranovák, 3142, Hungary.
- Department of Physiology and Neurobiology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary.
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Alyamani SA, Aldhalaan HM, Almuhaizea MA, Abukhalid MF. Expanding the Allelic spectrum in ATP1A3-related disorders with 3 novel mutations and clinic features. NEUROSCIENCES (RIYADH, SAUDI ARABIA) 2023; 28:195-198. [PMID: 37482377 PMCID: PMC10519661 DOI: 10.17712/nsj.2023.3.20220131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 06/13/2023] [Indexed: 07/25/2023]
Abstract
OBJECTIVES To describe the complex phenotype of ATP1A3 and second to report new mutation of ATP1A3. METHODS This is a retrospective chart review of 7 patients who was diagnosed with ATP1A3 mutation based on whole exome sequencing (WES) result and the following information were collected; age, age of onset, developmental ability, seizure type, family history, MRI, WES report. The data collection started a year ago January 2021 in King Faisal Specialist Hospital and Research Centre, Riyadh, KSA. This has been cleared for publication by the Office of Research Affairs, and the Publication Number is 2225429. RESULTS Five females and 2 males had onset ages of 0-3 years (mean=18 months). All had some degree of intellectual dysfunction, 6 had seizures (85%), 4 had neurologic abnormalities, 1 had autistic features and one had mild dystonia. CONCLUSION Our small-cohort observations confirm that ATP1A3 mutations express a wide range of phenotypes, usually including some degree of cognitive-behavioral dysfunction (100% of patients), seizures (85% of patients), and AHC (71% of patients). Moreover, they further expand the evolving allelic spectrum of these disorders by identifying 3 novel mutations.
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Affiliation(s)
- Suad A. Alyamani
- From the Department of Neuroscience Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Hesham M. Aldhalaan
- From the Department of Neuroscience Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Mohammed A. Almuhaizea
- From the Department of Neuroscience Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Musaad F. Abukhalid
- From the Department of Neuroscience Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
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