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Choi J, Jang H, Xuan Z, Park D. Emerging roles of ATG9/ATG9A in autophagy: implications for cell and neurobiology. Autophagy 2024:1-15. [PMID: 39099167 DOI: 10.1080/15548627.2024.2384349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 07/01/2024] [Accepted: 07/22/2024] [Indexed: 08/06/2024] Open
Abstract
Atg9, the only transmembrane protein among many autophagy-related proteins, was first identified in the year 2000 in yeast. Two homologs of Atg9, ATG9A and ATG9B, have been found in mammals. While ATG9B shows a tissue-specific expression pattern, such as in the placenta and pituitary gland, ATG9A is ubiquitously expressed. Additionally, ATG9A deficiency leads to severe defects not only at the molecular and cellular levels but also at the organismal level, suggesting key and fundamental roles for ATG9A. The subcellular localization of ATG9A on small vesicles and its functional relevance to autophagy have suggested a potential role for ATG9A in the lipid supply during autophagosome biogenesis. Nevertheless, the precise role of ATG9A in the autophagic process has remained a long-standing mystery, especially in neurons. Recent findings, however, including structural, proteomic, and biochemical analyses, have provided new insights into its function in the expansion of the phagophore membrane. In this review, we aim to understand various aspects of ATG9 (in invertebrates and plants)/ATG9A (in mammals), including its localization, trafficking, and other functions, in nonneuronal cells and neurons by comparing recent discoveries related to ATG9/ATG9A and proposing directions for future research.Abbreviation: AP-4: adaptor protein complex 4; ATG: autophagy related; cKO: conditional knockout; CLA-1: CLArinet (functional homolog of cytomatrix at the active zone proteins piccolo and fife); cryo-EM: cryogenic electron microscopy; ER: endoplasmic reticulum; KO: knockout; PAS: phagophore assembly site; PtdIns3K: class III phosphatidylinositol 3-kinase; PtdIns3P: phosphatidylinositol-3-phosphate; RB1CC1/FIP200: RB1 inducible coiled-coil 1; SV: synaptic vesicle; TGN: trans-Golgi network; ULK: unc-51 like autophagy activating kinase; WIPI2: WD repeat domain, phosphoinositide interacting 2.
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Affiliation(s)
- Jiyoung Choi
- Department of Medical and Biological Sciences, The Catholic University of Korea, Bucheon, South Korea
- Department of Biotechnology, The Catholic University of Korea, Bucheon, South Korea
| | - Haeun Jang
- Department of Medical and Biological Sciences, The Catholic University of Korea, Bucheon, South Korea
| | - Zhao Xuan
- School of Biology and Ecology, University of Maine, Orono, ME, USA
| | - Daehun Park
- Department of Medical and Biological Sciences, The Catholic University of Korea, Bucheon, South Korea
- Department of Biotechnology, The Catholic University of Korea, Bucheon, South Korea
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2
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Pinyomahakul J, Ise M, Kawamura M, Yamada T, Okuyama K, Shibata S, Takizawa J, Abe M, Sakimura K, Takebayashi H. Analysis of Brain, Blood, and Testis Phenotypes Lacking the Vps13a Gene in C57BL/6N Mice. Int J Mol Sci 2024; 25:7776. [PMID: 39063018 PMCID: PMC11277237 DOI: 10.3390/ijms25147776] [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: 06/10/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
The Vps13a gene encodes a lipid transfer protein called VPS13A, or chorein, associated with mitochondria-associated endoplasmic reticulum (ER) membranes (MAMs), mitochondria-endosomes, and lipid droplets. This protein plays a crucial role in inter-organelle communication and lipid transport. Mutations in the VPS13A gene are implicated in the pathogenesis of chorea-acanthocytosis (ChAc), a rare autosomal recessive neurodegenerative disorder characterized by chorea, orofacial dyskinesias, hyperkinetic movements, seizures, cognitive impairment, and acanthocytosis. Previous mouse models of ChAc have shown variable disease phenotypes depending on the genetic background. In this study, we report the generation of a Vps13a flox allele in a pure C57BL/6N mouse background and the subsequent creation of Vps13a knockout (KO) mice via Cre-recombination. Our Vps13a KO mice exhibited increased reticulocytes but not acanthocytes in peripheral blood smears. Additionally, there were no significant differences in the GFAP- and Iba1-positive cells in the striatum, the basal ganglia of the central nervous system. Interestingly, we observed abnormal spermatogenesis leading to male infertility. These findings indicate that Vps13a KO mice are valuable models for studying male infertility and some hematological aspects of ChAc.
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Affiliation(s)
- Jitrapa Pinyomahakul
- Division of Neurobiology and Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan; (J.P.)
| | - Masataka Ise
- Division of Neurobiology and Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan; (J.P.)
| | - Meiko Kawamura
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan; (M.K.); (M.A.); (K.S.)
| | - Takashi Yamada
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan; (T.Y.); (J.T.)
| | - Kentaro Okuyama
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan; (K.O.); (S.S.)
| | - Shinsuke Shibata
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan; (K.O.); (S.S.)
| | - Jun Takizawa
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata 951-8510, Japan; (T.Y.); (J.T.)
| | - Manabu Abe
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan; (M.K.); (M.A.); (K.S.)
| | - Kenji Sakimura
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan; (M.K.); (M.A.); (K.S.)
| | - Hirohide Takebayashi
- Division of Neurobiology and Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan; (J.P.)
- Center for Coordination of Research Facilities, Niigata University, Niigata 951-8510, Japan
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Wang M, Li H, Zhou Q, Zhao Q, Wang M, Geng Y, Kang H. Case report: Misdiagnosed orolingual dyskinesia as a consequence of seizures in a chorea-acanthocytosis patient with a novel VPS13A variation from a family with consanguineous marriage. Front Neurol 2024; 15:1352467. [PMID: 38933328 PMCID: PMC11199768 DOI: 10.3389/fneur.2024.1352467] [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: 12/08/2023] [Accepted: 05/16/2024] [Indexed: 06/28/2024] Open
Abstract
Chorea-acanthocytosis (ChAc) is a rare autosomal recessive inherited syndrome with heterogeneous symptoms, which makes it a challenge for early diagnosis. The mutation of VPS13A is considered intimately related to the pathogenesis of ChAc. To date, diverse mutation patterns of VPS13A, consisting of missense, nonsense, and frameshift mutations, have been reported. In this study, we first report a clinical case that was misdiagnosed as epilepsy due to recurrent seizures accompanied by tongue bite for 9 months, which was not rectified until seizures were controlled and involuntary orolingual movements with awareness became prominent and were confirmed to be orolingual dyskinesia. The patient was eventually diagnosed as ChAc based on whole-exome sequencing revealing novel homozygous c.2061dup (frameshift mutation) and c.6796A > T dual mutations in VPS13A. The patient from a family with consanguineous marriage manifested epileptic seizures at onset, including both generalized tonic-clonic seizures and absence but normal long-term electroencephalography, and gradually developed orofacial dyskinesia, including involuntary tongue protrusion, tongue biting and ulcers, involuntary open jaws, occasionally frequent eye blinks, and head swings. The first test of the peripheral blood smear was negative, and repeated checks confirmed an elevated percentage of acanthocytes by 15-21.3%. Structural brain MRI indicated a mildly swollen left hippocampus and parahippocampal gyrus and a progressively decreased volume of the bilateral hippocampus 1 year later, along with atrophy of the head of the caudate nucleus but no progression in 1 year. We deeply analyzed the reasons for long-term misdiagnosis in an effort to achieve a more comprehensive understanding of ChAc, thus facilitating early diagnosis and treatment in future clinical practice.
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Affiliation(s)
- Mengying Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Huimin Li
- Department of Neurology, The Central Hospital of Wuhan, Wuhan, Hubei, China
| | - Qing Zhou
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qin Zhao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Man Wang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yumei Geng
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Huicong Kang
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Neurology, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Ghodsinezhad V, Ghoreishi A, Rohani M, Dadfar M, Mohammadzadeh A, Rostami A, Rahimi H. Identification of four novel mutations in VSP13A in Iranian patients with Chorea-acanthocytosis (ChAc). Mol Genet Genomics 2024; 299:39. [PMID: 38519717 DOI: 10.1007/s00438-024-02111-y] [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: 09/07/2023] [Accepted: 01/13/2024] [Indexed: 03/25/2024]
Abstract
Chorea-acanthocytosis (ChAc) is a rare autosomal recessive neurodegenerative disorder characterized by a variety of involuntary movements, predominantly chorea, and the presence of acanthocytosis in peripheral blood smears. ChAc is caused by mutations in the vacuolar protein sorting-associated protein 13A (VPS13A) gene. The aim of the present study was to conduct a clinical and genetic analysis of five patients with suspected ChAc in Iran. This study included five patients who were referred to the genetic department of the Endocrinology and Metabolism Research Institute between 2020 and 2022, with a suspicion of ChAc. Clinical features and the presence of characteristic MRI findings were evaluated in the patients. Whole-exome sequencing (WES) followed by Sanger sequencing was employed to identify the disease-causing variants. The functional effects of novel mutations were analyzed by specific bioinformatics prediction tools. WES and data analysis revealed the presence of five distinct VPS13A mutations in the patients, four of which were novel. These included one nonsense mutation (p.L984X), and three splice site mutations (c.755-1G>A, c.144+1 G>C, c.2512+1G>A). All mutations were validated by Sanger sequencing, and in silico analysis predicted that all mutations were pathogenic. This study provides the first molecular genetic characteristics of Iranian patients with ChAc, identifying four novel mutations in the VPS13A gene. These findings expand the VPS13A variants spectrum and confirm the clinical variability in ChAc patients.
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Affiliation(s)
- Vadieh Ghodsinezhad
- Department of Genetics and Molecular Medicine, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Abdoreza Ghoreishi
- Department of Neurology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Rohani
- Department of Neurology, Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Dadfar
- Skull Base Research Center, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Akbar Mohammadzadeh
- Department of Genetics and Molecular Medicine, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ali Rostami
- Department of Pharmacology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Hamzeh Rahimi
- Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
- Texas Biomedical Research Institute, San Antonio, TX, USA.
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Chen X, Zhang P, Wang L, Zhang Y. Novel heterozygous VPS13A pathogenic variants in chorea-neuroacanthocytosis: a case report. BMC Neurol 2023; 23:350. [PMID: 37794323 PMCID: PMC10548615 DOI: 10.1186/s12883-023-03398-x] [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: 03/04/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Chorea-acanthocytosis (ChAc) is a rare hereditary autosomal recessive neurodegenerative disorder caused by pathogenic variants of the Vacuolar Protein Sorting 13 homolog A (VPS13A) gene. The variant spectrum of VPS13A has not been completely elucidated. This study reports two novel heterozygous VPS13A pathogenic variants in ChAc that expand the variant spectrum of VPS13A. CASE PRESENTATION We described a case of a 29-year-old man with typical clinical manifestations of ChAc, including chorea, orofacial lingual dyskinesia, vocal tics, elevated serum biochemical indicators, increased acanthocytes in peripheral blood, and caudate nucleus atrophy. Next-generation sequencing revealed two heterozygous variants of VPS13A: a nonsense variant (NM_033305.2: c.8215G > T, p. Glu2739Ter) and a deletion variant in the exons 25-31. CONCLUSION The identified nonsense variant gives rise to premature translation termination, while the deletion variant is expected to cause a significant in-frame deletion of amino acid residues in the encoded protein. Both variants are considered to be pathogenic and result in loss-of-function proteins. These findings have implications for the genetic counseling of patients with VPS13A variants.
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Affiliation(s)
- Xi Chen
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Shantou University Medical College, Shantou, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Piao Zhang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Lijuan Wang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Yuhu Zhang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China.
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China.
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Wu Q, Li Z, Cheng Y, Hu H, Gao H, Wang J, Han D. Acupuncture for treating symptoms associated with chorea-acanthocytosis: A CARE-compliant case report. Explore (NY) 2023; 19:127-130. [PMID: 34819264 DOI: 10.1016/j.explore.2021.11.002] [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: 10/30/2021] [Accepted: 11/06/2021] [Indexed: 01/25/2023]
Abstract
BACKGROUND Chorea-acanthocytosis (ChAc) is the most common type of neuroacanthocytosis syndromes. Characteristic movement disorders of ChAc are choreiform movements affecting both trunk and extremities. Acanthocytosis in peripheral blood smear, elevated serum creatine kinase, atrophy of heads of caudate nuclei and dilation of the anterior horn of the lateral ventricles in magnetic resonance imaging could assist the diagnosis of ChAc. OBJECTIVE We aimed to report on the use of acupuncture to successfully improve ChAc symptoms. METHOD A patient with definite ChAc was admitted, who had suffered from involuntary tongue protrusion for about 10 years. Acupuncture treatment was administrated for 3 times a week for 2 months. The chorea tremor control area, Baihui (GV20), Sishencong (EX-HN1), Shenting (GV24), Benshen (GB13, bilateral), Yintang (GV29), Neiguan (PC6, bilateral), Tongli (HT5, bilateral), Zusanli (ST36, bilateral), Sanyinjiao (SP6, bilateral), Dicang (ST4, bilateral), Chengjiang (CV24), Lianquan (CV23), Jinjin (EX-HN12) and Yuye (EX-HN13) were selected as acupunture points. RESULTS Previous drug dosage was reduced and the frequency of involuntary tongue protrusion was significantly reduced. Other clinical symptoms were also well controlled. Peripheral blood smear still indicated an increased proportion of red lineage, but blood analyses revealed improvement at follow-up. CONCLUSIONS For patients who do not response well to conventional medical treatments, acupuncture might be used as an alternative treatment for symptoms related to ChAc.
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Affiliation(s)
- Qiqi Wu
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zengtu Li
- Department of Massage, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingying Cheng
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hantong Hu
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hong Gao
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiawei Wang
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Dexiong Han
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
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Sassenbach L. Identification of novel proteins involved in P2X7-mediated signaling cascades. Purinergic Signal 2022; 18:495-498. [PMID: 35960424 PMCID: PMC9832184 DOI: 10.1007/s11302-022-09893-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 07/28/2022] [Indexed: 01/14/2023] Open
Abstract
High concentration of extracellular ATP acts as a danger signal that is sensed by the P2X7 receptor (P2X7R). This ATP-gated ion channel has been shown to induce multiple metabotropic events such as changes in plasma membrane composition and morphology, ectodomain shedding, activation of lipases, kinases, and transcription factors as well as cytokine release. The specific signaling pathways and molecular mechanisms remain largely obscure. Using an unbiased genome-scale CRISPR/Cas9 screening approach in a murine T cell line, Ryoden et al. (2022, 2020) identified three proteins involved in P2X7 regulation and signaling: Essential for Reactive Oxygen Species (EROS) is essential for P2X7 folding and maturation, and Xk and Vsp13a are required for P2X7-mediated phosphatidyl serine exposure and cell lysis. They further provide evidence for an interaction of Xk and Vsp13a at the plasma membrane and confirm the role of Xk in ATP-induced cytolysis in primary CD25+CD4+ T cells from Xk-/- mice.
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Affiliation(s)
- Lukas Sassenbach
- Walther-Straub-Institute of Pharmacology and Toxicology, Faculty of Medicine, LMU Munich, Munich, Germany.
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Kaminska J, Soczewka P, Rzepnikowska W, Zoladek T. Yeast as a Model to Find New Drugs and Drug Targets for VPS13-Dependent Neurodegenerative Diseases. Int J Mol Sci 2022; 23:ijms23095106. [PMID: 35563497 PMCID: PMC9104724 DOI: 10.3390/ijms23095106] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 12/10/2022] Open
Abstract
Mutations in human VPS13A-D genes result in rare neurological diseases, including chorea-acanthocytosis. The pathogenesis of these diseases is poorly understood, and no effective treatment is available. As VPS13 genes are evolutionarily conserved, the effects of the pathogenic mutations could be studied in model organisms, including yeast, where one VPS13 gene is present. In this review, we summarize advancements obtained using yeast. In recent studies, vps13Δ and vps13-I2749 yeast mutants, which are models of chorea-acanthocytosis, were used to screen for multicopy and chemical suppressors. Two of the suppressors, a fragment of the MYO3 and RCN2 genes, act by downregulating calcineurin activity. In addition, vps13Δ suppression was achieved by using calcineurin inhibitors. The other group of multicopy suppressors were genes: FET4, encoding iron transporter, and CTR1, CTR3 and CCC2, encoding copper transporters. Mechanisms of their suppression rely on causing an increase in the intracellular iron content. Moreover, among the identified chemical suppressors were copper ionophores, which require a functional iron uptake system for activity, and flavonoids, which bind iron. These findings point at areas for further investigation in a higher eukaryotic model of VPS13-related diseases and to new therapeutic targets: calcium signalling and copper and iron homeostasis. Furthermore, the identified drugs are interesting candidates for drug repurposing for these diseases.
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Affiliation(s)
- Joanna Kaminska
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, 02-106 Warsaw, Poland; (J.K.); (P.S.)
| | - Piotr Soczewka
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, 02-106 Warsaw, Poland; (J.K.); (P.S.)
| | - Weronika Rzepnikowska
- Neuromuscular Unit, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland;
| | - Teresa Zoladek
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, 02-106 Warsaw, Poland; (J.K.); (P.S.)
- Correspondence:
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Reichel F, Kräter M, Peikert K, Glaß H, Rosendahl P, Herbig M, Rivera Prieto A, Kihm A, Bosman G, Kaestner L, Hermann A, Guck J. Changes in Blood Cell Deformability in Chorea-Acanthocytosis and Effects of Treatment With Dasatinib or Lithium. Front Physiol 2022; 13:852946. [PMID: 35444561 PMCID: PMC9013823 DOI: 10.3389/fphys.2022.852946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/08/2022] [Indexed: 12/29/2022] Open
Abstract
Misshaped red blood cells (RBCs), characterized by thorn-like protrusions known as acanthocytes, are a key diagnostic feature in Chorea-Acanthocytosis (ChAc), a rare neurodegenerative disorder. The altered RBC morphology likely influences their biomechanical properties which are crucial for the cells to pass the microvasculature. Here, we investigated blood cell deformability of five ChAc patients compared to healthy controls during up to 1-year individual off-label treatment with the tyrosine kinase inhibitor dasatinib or several weeks with lithium. Measurements with two microfluidic techniques allowed us to assess RBC deformability under different shear stresses. Furthermore, we characterized leukocyte stiffness at high shear stresses. The results showed that blood cell deformability–including both RBCs and leukocytes - in general was altered in ChAc patients compared to healthy donors. Therefore, this study shows for the first time an impairment of leukocyte properties in ChAc. During treatment with dasatinib or lithium, we observed alterations in RBC deformability and a stiffness increase for leukocytes. The hematological phenotype of ChAc patients hinted at a reorganization of the cytoskeleton in blood cells which partly explains the altered mechanical properties observed here. These findings highlight the need for a systematic assessment of the contribution of impaired blood cell mechanics to the clinical manifestation of ChAc.
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Affiliation(s)
- Felix Reichel
- Max-Planck-Institut für die Physik des Lichts and Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Martin Kräter
- Max-Planck-Institut für die Physik des Lichts and Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Kevin Peikert
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, University of Rostock, Rostock, Germany
- Division for Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, Dresden, Germany
| | - Hannes Glaß
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, University of Rostock, Rostock, Germany
| | - Philipp Rosendahl
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Maik Herbig
- Max-Planck-Institut für die Physik des Lichts and Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Alejandro Rivera Prieto
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Alexander Kihm
- Department of Experimental Physics, Saarland University, Saarbrücken, Germany
| | - Giel Bosman
- Department of Biochemistry, Radboud UMC, Nijmegen, Netherlands
| | - Lars Kaestner
- Department of Experimental Physics, Saarland University, Saarbrücken, Germany
- Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany
| | - Andreas Hermann
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, University of Rostock, Rostock, Germany
- Division for Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, Dresden, Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Rostock/Greifswald, Rostock, Germany
- Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Jochen Guck
- Max-Planck-Institut für die Physik des Lichts and Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
- *Correspondence: Jochen Guck,
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Mitchell SD, Albin RL, Dauer WT, Goudreau JL, Sidiropoulos C. Heterozygous VPS13A and PARK2 Mutations in a Patient with Parkinsonism and Seizures. Case Rep Neurol 2021; 13:341-346. [PMID: 34248567 PMCID: PMC8255736 DOI: 10.1159/000515805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/05/2021] [Indexed: 01/09/2023] Open
Abstract
Neuroacanthocytosis (NA) is a diverse group of disorders in which nervous system abnormalities co-occur with irregularly shaped red blood cells called acanthocytes. Chorea-acanthocytosis is the most common of these syndromes and is an autosomal recessive disease caused by mutations in the vacuolar protein sorting 13A (VPS13A) gene. We report a case of early onset parkinsonism and seizures in a 43-year-old male with a family history of NA. Neurologic examinations showed cognitive impairment and marked parkinsonian signs. MRI showed bilateral basal ganglia gliosis. He was found to have a novel heterozygous mutation in the VPS13A gene, in addition a heterozygous mutation in the PARK2 gene. His clinical picture was atypical for typical chorea-acanthocytosis (ChAc). The compound heterozygous mutations of VPS13A and PARK2 provide the most plausible explanation for this patient's clinical symptoms. This case adds to the phenotypic diversity of ChAc. More research is needed to fully understand the roles of epistatic interactions on phenotypic expression of neurodegenerative diseases.
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Affiliation(s)
- Steven D Mitchell
- Department of Neurology, Michigan State University, East Lansing, Michigan, USA
| | - Roger L Albin
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.,VAAAHS GRECC, Ann Arbor, Michigan, USA
| | - William T Dauer
- Department of Neurology and Neurotherapeutics, O'Donnell Brain Institute, Dallas, Texas, USA.,Department of Neuroscience, University of Texas Southwestern, Dallas, Texas, USA
| | - John L Goudreau
- Department of Neurology, Michigan State University, East Lansing, Michigan, USA
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Vaisfeld A, Bruno G, Petracca M, Bentivoglio AR, Servidei S, Vita MG, Bove F, Straccia G, Dato C, Di Iorio G, Sampaolo S, Peluso S, De Rosa A, De Michele G, Barghigiani M, Galatolo D, Tessa A, Santorelli F, Chiurazzi P, Melone MAB. Neuroacanthocytosis Syndromes in an Italian Cohort: Clinical Spectrum, High Genetic Variability and Muscle Involvement. Genes (Basel) 2021; 12:genes12030344. [PMID: 33652783 PMCID: PMC7996727 DOI: 10.3390/genes12030344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 01/12/2023] Open
Abstract
Neuroacanthocytosis (NA) syndromes are a group of genetically defined diseases characterized by the association of red blood cell acanthocytosis, progressive degeneration of the basal ganglia and neuromuscular features with characteristic persistent hyperCKemia. The main NA syndromes include autosomal recessive chorea-acanthocytosis (ChAc) and X-linked McLeod syndrome (MLS). A series of Italian patients selected through a multicenter study for these specific neurological phenotypes underwent DNA sequencing of the VPS13A and XK genes to search for causative mutations. Where it has been possible, muscle biopsies were obtained and thoroughly investigated with histochemical assays. A total of nine patients from five different families were diagnosed with ChAC and had mostly biallelic changes in the VPS13A gene (three nonsense, two frameshift, three splicing), while three patients from a single X-linked family were diagnosed with McLeod syndrome and had a deletion in the XK gene. Despite a very low incidence (only one thousand cases of ChAc and a few hundred MLS cases reported worldwide), none of the 8 VPS13A variants identified in our patients is shared by two families, suggesting the high genetic variability of ChAc in the Italian population. In our series, in line with epidemiological data, McLeod syndrome occurs less frequently than ChAc, although it can be easily suspected because of its X-linked mode of inheritance. Finally, histochemical studies strongly suggest that muscle pathology is not simply secondary to the axonal neuropathy, frequently seen in these patients, but primary myopathic alterations can be detected in both NA syndromes.
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Affiliation(s)
- Alessandro Vaisfeld
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
| | - Giorgia Bruno
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Martina Petracca
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
| | - Anna Rita Bentivoglio
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Serenella Servidei
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurofisiopatologia, 00168 Rome, Italy
| | - Maria Gabriella Vita
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
| | - Francesco Bove
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Giulia Straccia
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Clemente Dato
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Giuseppe Di Iorio
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Simone Sampaolo
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Silvio Peluso
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Anna De Rosa
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Giuseppe De Michele
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Melissa Barghigiani
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Daniele Galatolo
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Alessandra Tessa
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Filippo Santorelli
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Pietro Chiurazzi
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC Genetica Medica, 00168 Roma, Italy
- Correspondence: ; Tel.: +39-338-8361006
| | - Mariarosa Anna Beatrice Melone
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Temple University, Philadelphia, PA 19122-6078, USA
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Tada Y, Hamaguchi T, Ikeda Y, Iwasa K, Nishida Y, Nakamura M, Sano A, Yamada M. Chorea-acanthocytosis with a novel mutation in the vacuolar protein sorting 13 homolog a gene: A case report. J Neurol Sci 2020; 412:116731. [DOI: 10.1016/j.jns.2020.116731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 11/27/2022]
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14
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Discriminating chorea-acanthocytosis from Huntington's disease with single-case voxel-based morphometry analysis. J Neurol Sci 2020; 408:116545. [DOI: 10.1016/j.jns.2019.116545] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 01/22/2023]
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15
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Verkkoniemi-Ahola A, Kuuluvainen L, Kivirikko S, Myllykangas L, Pöyhönen M. Chorea-acanthocytosis associated with two novel heterozygous mutations in the VPS13A gene. J Neurol Sci 2019; 408:116555. [PMID: 31759222 DOI: 10.1016/j.jns.2019.116555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Auli Verkkoniemi-Ahola
- Clinical Neurosciences, Neurology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Liina Kuuluvainen
- Department of Clinical Genetics, Helsinki University Hospital, Department of Medical Genetics, University of Helsinki, Helsinki, Finland.
| | - Sirpa Kivirikko
- Department of Clinical Genetics, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Liisa Myllykangas
- Department of Pathology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Minna Pöyhönen
- Department of Clinical Genetics, Helsinki University Hospital, Department of Medical Genetics, University of Helsinki, Helsinki, Finland
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