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Li P, Xi Y, Zhang Y, Samad A, Lan W, Wu Y, Zhao J, Chen G, Wu C, Xiong Q. GLA Mutations Suppress Autophagy and Stimulate Lysosome Generation in Fabry Disease. Cells 2024; 13:437. [PMID: 38474401 DOI: 10.3390/cells13050437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/23/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Fabry disease (FD) is an X-linked recessive inheritance lysosomal storage disorder caused by pathogenic mutations in the GLA gene leading to a deficiency of the enzyme alpha-galactosidase A (α-Gal A). Multiple organ systems are implicated in FD, most notably the kidney, heart, and central nervous system. In our previous study, we identified four GLA mutations from four independent Fabry disease families with kidney disease or neuropathic pain: c.119C>A (p.P40H), c.280T>C (C94R), c.680G>C (p.R227P) and c.801+1G>A (p.L268fsX3). To reveal the molecular mechanism underlying the predisposition to Fabry disease caused by GLA mutations, we analyzed the effects of these four GLA mutations on the protein structure of α-galactosidase A using bioinformatics methods. The results showed that these mutations have a significant impact on the internal dynamics and structures of GLA, and all these altered amino acids are close to the enzyme activity center and lead to significantly reduced enzyme activity. Furthermore, these mutations led to the accumulation of autophagosomes and impairment of autophagy in the cells, which may in turn negatively regulate autophagy by slightly increasing the phosphorylation of mTOR. Moreover, the overexpression of these GLA mutants promoted the expression of lysosome-associated membrane protein 2 (LAMP2), resulting in an increased number of lysosomes. Our study reveals the pathogenesis of these four GLA mutations in FD and provides a scientific foundation for accurate diagnosis and precise medical intervention for FD.
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Affiliation(s)
- Ping Li
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Yuqian Xi
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Yanping Zhang
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Abdus Samad
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Wenli Lan
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Ya Wu
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Jiayu Zhao
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Guangxin Chen
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Changxin Wu
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Qiuhong Xiong
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
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Klaewkla M, Prousoontorn J, Charoenwongpaiboon T. A theoretical study on binding and stabilization of galactose and novel galactose analogues to the human α-galactosidase A variant causing Fabry disease. Biophys Chem 2023; 292:106915. [PMID: 36334502 DOI: 10.1016/j.bpc.2022.106915] [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: 06/08/2022] [Revised: 10/15/2022] [Accepted: 10/23/2022] [Indexed: 12/14/2022]
Abstract
α-galactosidase A (α-Gal A) catalyzes the hydrolysis of terminal α-galactosyl moieties from globotriaosylceramide, and mutations in this enzyme lead to the lipid metabolism disorder "Fabry disease". Mutation in α-Gal A possibly causes the protein misfolding, which reduces catalytic activity and stability of the enzyme. A recent study demonstrated that the binding of galactose on the α-Gal A catalytic site significantly increases its stability. Herein, the effect of mutation on secondary structure, structural energy, and galactose affinity of α-Gal A (wild type and A143T variant) was investigated using molecular dynamics simulations and free energy calculations based on MM/GBSA method. The results showed that A143T mutation caused the formation of unusual H-bonds that induced the change in secondary structure and binding affinities toward galactose. The amino acid residues involved in galactose binding were identified. The molecular binding mechanism obtained from this study could be helpful for optimizations and designs of new galactose analogs as pharmacological chaperones against Fabry disease.
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Varela-Calais P, Nicolicht P, Paulo Martin R, Yamamoto J, D'Almeida V, Maria Martins A, Bosco Pesquero J. Functional characterization of novel variants found in patients with suspected Fabry disease. Clin Chim Acta 2022; 534:156-160. [PMID: 35870541 DOI: 10.1016/j.cca.2022.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/17/2022] [Indexed: 11/30/2022]
Abstract
The deficiency or absence of the lysosomal hydrolase α-Galactosidase A results in Fabry disease (FD), a rare and underdiagnosed X-linked disorder. The symptoms caused by FD have a direct relation with the variant present in the gene coding α-Galactosidase A (GLA) and enzyme residual activity, and it can vary drastically between men and women of the same family. Here, we present four novel variants found in patients with suspicion of FD. The patients were screened for FD by enzymatic activity and/or DNA sequencing, which showed four novel GLA missense variants. To confirm the potential pathogenicity of these variants, we employed site-directed mutagenesis. GLA wild-type and mutant plasmids were transfected into mammalian cells; RNA and proteins were extracted for expression and enzymatic activity analysis. The patients presented the variants p.Ile133Asn, p.Lys140Thr, p.Lys168Gln and p.Pro323Thr in the GLA. In vitro analysis showed pathogenic potential of three variants and one tolerated variant. The variants p.Ile133Asn and p.Lys168Gln showed no residual activity and, therefore, leading to classical phenotype, and the variant p.Lys140Thr, which presented 22% of residual activity, was considered a mild variant leading to non-classical phenotype. The variant p.Pro323Thr presented 66.7% of residual activity and alone, it is not enough to cause FD.
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Affiliation(s)
- Patrícia Varela-Calais
- Center for Research and Molecular Diagnostic of Genetic Diseases - Department of Biophysics, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Priscila Nicolicht
- Center for Research and Molecular Diagnostic of Genetic Diseases - Department of Biophysics, Federal University of São Paulo, São Paulo, SP, Brazil; Laboratory of Molecular Neurobiology, Universidade Federal de Sao Paulo, Department of Biochemistry, Sao Paulo, Brazil
| | - Renan Paulo Martin
- McKusick-Nathans Department of Genetic Medicine - Johns Hopkins University School of Medicine, Baltimore, MD
| | - Joyce Yamamoto
- Department of Psychobiology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Vânia D'Almeida
- Department of Psychobiology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Ana Maria Martins
- Reference Center in Inborn Errors of Metabolism, Pediatrics Department, Federal University of São Paulo, São Paulo, SP, Brazil
| | - João Bosco Pesquero
- Center for Research and Molecular Diagnostic of Genetic Diseases - Department of Biophysics, Federal University of São Paulo, São Paulo, SP, Brazil.
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Cheong CSY, Khan SU, Ahmed N, Narayanan K. Identification of dual active sites in Caenorhabditis elegans GANA-1 protein: an ortholog of the human α-GAL a and α-NAGA enzymes. J Biomol Struct Dyn 2022:1-16. [PMID: 35694994 DOI: 10.1080/07391102.2022.2084162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Fabry disease (FD) is caused by a defective α-galactosidase A (α-GAL A) enzyme responsible for breaking down globotriaosylceramide (Gb3). To develop affordable therapeutics, more effort is needed to obtain insights into the underlying mechanism of FD and understanding human α-GAL A structure and function in related animal models. We adopted C. elegans as a model to elucidate the sequence and 3D structure of its GANA-1 enzyme and compared it to human α-GAL A. We constructed GANA-1 3D structure by homology modelling and validated the quality of the predicted GANA-1 structure, followed by computational docking of human ligands. The GANA-1 protein shared sequence similarities up to 42.1% with the human α-GAL A in silico and had dual active sites. GANA-1 homology modelling showed that 11 out of 13 amino acids in the first active site of GANA-1 protein overlapped with the human α-GAL A active site, indicating the prospect for substrate cross-reaction. Computational molecular docking using human ligands like Gb3 (first pocket), 4-nitrophenyl-α-D-galactopyranoside (second pocket), α-galactose (second pocket), and N-acetyl-D-galactosamine (second pocket) showed negative binding energy. This revealed that the ligands were able to bind within both GANA-1 active sites, mimicking the human α-GAL A and α-NAGA enzymes. We identified human compounds with adequate docking scores, predicting robust interactions with the GANA-1 active site. Our data suggested that the C. elegans GANA-1 enzyme may possess structural and functional similarities to human α-GAL A, including an intrinsic capability to metabolize Gb3 deposits.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Clerance Su Yee Cheong
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Shafi Ullah Khan
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia.,Department of Pharmacy, Abasyn University, Peshawar, Khyber Pakhtunkhwa, Pakistan.,Product & Process Innovation Department, Qarshi Brands (Pvt) Ltd, District Haripur, Khyber Pakhtunkhwa, Pakistan
| | - Nafees Ahmed
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia.,Tropical Medicine and Biology Multidisciplinary Platform, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Kumaran Narayanan
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor Darul Ehsan, Malaysia
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Fabry Disease in Slovakia: How the Situation Has Changed over 20 Years of Treatment. J Pers Med 2022; 12:jpm12060922. [PMID: 35743707 PMCID: PMC9224707 DOI: 10.3390/jpm12060922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 11/17/2022] Open
Abstract
Fabry disease (FD, OMIM#301500) is a rare inborn error of the lysosomal enzyme α-galactosidase (α-Gal A, EC 3.2.1.22) and results in progressive substrate accumulation in tissues with a wide range of clinical presentations. Despite the X-linked inheritance, heterozygous females may also be affected. Hemizygous males are usually affected more severely, with an earlier manifestation of the symptoms. Rising awareness among health care professionals and more accessible diagnostics have positioned FD among the most-common inherited metabolic diseases in adults. An early and correct diagnosis of FD is crucial with a focus on personalised therapy. Preventing irreversible destruction of vital organs is the main goal of modern medicine. The aim of this study was to offer a complex report mapping the situation surrounding FD patients in Slovakia. A total of 48 patients (21 males, 27 females) with FD are registered in the Centre for Inborn Errors of Metabolism in Bratislava, Slovakia. In our cohort, we have identified three novel pathogenic variants in five patients. Three patients presented with the frameshift mutation c.736delA, and two others presented with the missense mutations c.203T>C, c.157A>C. Moreover, we present a new clinical picture of the pathogenic variant c.801+1G>A, which was previously described and associated with the renal phenotype.
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Mahalapbutr P, Klaewkla M, Charoenwongpaiboon T. Unraveling the effect of A143T, P205T and D244N mutations in α-galactosidase A on its catalytic activity and susceptibility to globotriaosylceramide and iminosugar 1-deoxygalactonojirimycin chaperone. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Monte MA, Veroux M, Rodolico MS, Losi V, Di Pino L, Bella R, Lanza G, Monte IP. Fabry's Disease: The Utility of a Multidisciplinary Screening Approach. Life (Basel) 2022; 12:life12050623. [PMID: 35629291 PMCID: PMC9146284 DOI: 10.3390/life12050623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/10/2022] [Accepted: 04/20/2022] [Indexed: 02/07/2023] Open
Abstract
(1) Background: As a lysosomal storage disorder, Fabry’s disease (FD) shows variable clinical manifestations. We applied our multidisciplinary approach to identify any organ damage in a sample of adult patients with different pathogenic variants. (2) Methods: 49 participants (mean age 44.3 ± 14.2 years; 37 females), underwent a multidimensional clinical and instrumental assessment. (3) Results: At diagnosis, mean enzymatic activity was 5.2 ± 4.6 nM/mL/h in females and 1.4 ± 0.5 nM/mL/h in males (normal values > 3.0), whereas globotriaosylsphingosine was 2.3 ± 2.1 nM/L in females and 28.7 ± 3.5 nM/L in males (normal values < 2.0). Overall, cardiovascular, neurological, and audiological systems were the most involved, regardless of the variant detected. Patients with classic variants (10) showed typical multiorgan involvement and, in some cases, prevalent organ damage (cardiovascular, neurological, renal, and ocular). Those with late-onset variants (39) exhibited lower occurrence of multiorgan impairment, although some of them affected the cardiovascular and neurological systems more. In patients with lower enzymatic activity, the most frequent involvement was neurological, followed by peripheral vascular disease. (4) Conclusions: FD patients exhibited wide phenotypic variability, even at single-organ level, likely due to the individual genetic mutation, although other factors may contribute. Compared to the conventional management, a multidisciplinary approach, as that prompted at our Center, allows one to achieve early clinical detection and management.
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Affiliation(s)
- Marco Angelo Monte
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.A.M.); (V.L.); (L.D.P.); (G.L.)
| | - Massimiliano Veroux
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.V.); (R.B.)
| | | | - Valentina Losi
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.A.M.); (V.L.); (L.D.P.); (G.L.)
| | - Luigi Di Pino
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.A.M.); (V.L.); (L.D.P.); (G.L.)
| | - Rita Bella
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.V.); (R.B.)
| | - Giuseppe Lanza
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.A.M.); (V.L.); (L.D.P.); (G.L.)
- Clinical Neurophysiology Research Unit, Oasi Research Institute-IRCCS, Via Conte Ruggero 73, 94018 Troina, Italy
| | - Ines Paola Monte
- Department of Surgery and Medical-Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy; (M.A.M.); (V.L.); (L.D.P.); (G.L.)
- Correspondence:
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Sawada T, Kido J, Sugawara K, Nakamura K. High-Risk Screening for Fabry Disease: A Nationwide Study in Japan and Literature Review. Diagnostics (Basel) 2021; 11:diagnostics11101779. [PMID: 34679477 PMCID: PMC8534369 DOI: 10.3390/diagnostics11101779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/26/2022] Open
Abstract
Fabry disease (FD) is an X-linked inherited disorder caused by mutations in the GLA gene, which encodes the lysosomal enzyme α-galactosidase A (α-Gal A). FD detection in patients at an early stage is essential to achieve sufficient treatment effects, and high-risk screening may be effective. Here, we performed high-risk screening for FD in Japan and showed that peripheral neurological manifestations are important in young patients with FD. Moreover, we reviewed the literature on high-risk screening in patients with renal, cardiac, and central neurological manifestations. Based on the results of this study and review of research abroad, we believe that FD can be detected more effectively by targeting individuals based on age. In recent years, the methods for high-risk screening have been ameliorated, and high-risk screening studies using GLA next-generation sequencing have been conducted. Considering the cost-effectiveness of screening, GLA sequencing should be performed in individuals with reduced α-Gal A activity and females with certain FD manifestations and/or a family history of FD. The findings suggest that family analysis would likely detect FD patients, although GLA sequencing of asymptomatic family members requires adequate genetic counseling.
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Affiliation(s)
- Takaaki Sawada
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto City 860-8556, Japan
| | - Jun Kido
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
- Correspondence: ; Tel.: +81-096-373-5191; Fax: +81-096-373-5335
| | - Keishin Sugawara
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
| | - Kimitoshi Nakamura
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
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Malvagia S, Ferri L, Della Bona M, Borsini W, Cirami CL, Dervishi E, Feriozzi S, Gasperini S, Motta S, Mignani R, Trezzi B, Pieruzzi F, Morrone A, Daniotti M, Donati MA, la Marca G. Multicenter evaluation of use of dried blood spot compared to conventional plasma in measurements of globotriaosylsphingosine (LysoGb3) concentration in 104 Fabry patients. Clin Chem Lab Med 2021; 59:1516-1526. [PMID: 33915609 DOI: 10.1515/cclm-2021-0316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/20/2021] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Fabry disease (FD) is an X-linked lysosomal storage disorder, resulting from a deficiency of the enzyme α-galactosidase A, responsible for breaking down glycolipids such as globotriaosylceramide and its deacylated derivative, globotriaosylsphingosine (LysoGb3). Here, we compare the levels of LysoGb3 in dried blood spots (DBS) and plasma in patients with classic and late-onset phenotypes. METHODS LysoGb3 measurements were performed in 104 FD patients, 39 males and 65 females. Venous blood was collected. A portion was spotted onto filter paper and another portion separated to obtain plasma. The LysoGb3 concentrations in DBS and plasma were determined by highly sensitive electrospray ionization liquid chromatography tandem mass spectrometry. Agreement between different matrices was assessed using linear regression and Bland Altman analysis. RESULTS The method on DBS was validated by evaluating its precision, accuracy, matrix effect, recovery, and stability. The analytical performances were verified by comparison of a total of 104 paired DBS and plasma samples from as many FD patients (representing 46 GLA variants). There was a strong correlation between plasma and the corresponding DBS LysoGb3 concentrations, with few exceptions. Discrepancies were observed in anemic patients with typically low hematocrit levels compared to the normal range. CONCLUSIONS The method proved to be efficient for the rapid analysis of LysoGb3. DBS provides a convenient, sensitive, and reproducible method for measuring LysoGb3 levels for diagnosis, initial phenotypic assignment, and therapeutic monitoring in patients with FD.
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Affiliation(s)
- Sabrina Malvagia
- Newborn Screening, Clinical Chemistry and Pharmacology Lab, Meyer Children's University Hospital, Florence, Italy
| | - Lorenzo Ferri
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy
| | - Maria Della Bona
- Newborn Screening, Clinical Chemistry and Pharmacology Lab, Meyer Children's University Hospital, Florence, Italy
| | | | | | - Egrina Dervishi
- Nephrology Dialysis Transplant Unit, Careggi Hospital, Florence, Italy
| | - Sandro Feriozzi
- Nephrology and Dialysis Unit, Belcolle Hospital, Viterbo, Italy
| | - Serena Gasperini
- Pediatric Rare Diseases Unit, Department of Pediatrics, MBBM Foundation, San Gerardo Hospital, Monza, Italy
| | - Serena Motta
- Pediatric Rare Diseases Unit, Department of Pediatrics, MBBM Foundation, San Gerardo Hospital, Monza, Italy
| | - Renzo Mignani
- Department of Nephrology, Infermi Hospital, Rimini, Italy
| | - Barbara Trezzi
- Clinical Nephrology, School of Medicine and Surgery, University of Milano, Milan, Italy
| | - Federico Pieruzzi
- Clinical Nephrology, School of Medicine and Surgery, University of Milano-Bicocca and Nephrology and Dialysis Unit, ASST-Monza San Gerardo Hospital, Monza, Italy
| | - Amelia Morrone
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy.,Department of Neurofarba, University of Florence, Florence, Italy
| | - Marta Daniotti
- Metabolic Disease Unit, Meyer Children's University Hospital, Florence, Italy
| | - Maria Alice Donati
- Metabolic Disease Unit, Meyer Children's University Hospital, Florence, Italy
| | - Giancarlo la Marca
- Newborn Screening, Clinical Chemistry and Pharmacology Lab, Meyer Children's University Hospital, Florence, Italy.,Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
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Dwyer B, Hu J, Madduri A, Lundberg D, Miller B, Gill J, Meiyappan M, Pan C, Miller T, Zhang B. Affinity purification of human alpha galactosidase utilizing a novel small molecule biomimetic of alpha-D-galactose. Protein Expr Purif 2020; 177:105752. [PMID: 32949707 DOI: 10.1016/j.pep.2020.105752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Abstract
Alpha galactosidase (a-Gal) is an acidic hydrolase that plays a critical role in hydrolyzing the terminal alpha-galactoyl moiety from glycolipids and glycoproteins. There are over a hundred mutations reported for the GLA gene that encodes a-Gal that result in reduced protein synthesis, protein instability, and reduction in function. The deficiencies of a-Gal can cause Fabry disease, a rare lysosomal storage disorder (LSD) caused by the failure to catabolize alpha-d-galactoyl glycolipid moieties. The current standard of care for Fabry disease is enzyme replacement therapy (ERT) where the purified recombinant form of human a-Gal is given to patients. The manufacture of a-Gal is currently performed utilizing traditional large-scale chromatography processes. Developing an affinity resin for the purification of a-Gal would reduce the complexity of the manufacturing process, reduce costs, and potentially produce a higher quality a-Gal. After the evaluation of many small molecules, a commercially available small molecule biomimetic, N-5-Carboxypentyl-1-deoxygalactonojirimycin (N5C-DGJ), was utilized for the development of a novel small molecule biomimetic affinity resin for a-Gal. Affinity purified a-Gal demonstrated a purity greater than 90%, exhibited expected thermal stability and specific activity. Complementing this affinity purification is the development of an elution buffer system that confers an increased thermal stability to a-Gal. The N5C-DGJ affinity resin tolerated sodium hydroxide sanitization with no loss of binding capacity, making it amenable to large scale purification processes and potential use in manufacturing. This novel method for purifying the challenging a-Gal enzyme can be extended to other enzyme replacement therapies.
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Affiliation(s)
- Brian Dwyer
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA.
| | - Jun Hu
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
| | | | | | - Brian Miller
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
| | - John Gill
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
| | | | - Clark Pan
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
| | - Tom Miller
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
| | - Bohong Zhang
- Takeda Pharmaceuticals, Cambridge, MA, 02142, USA
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Yagci ZB, Esvap E, Ozkara HA, Ulgen KO, Olmez EO. Inflammatory response and its relation to sphingolipid metabolism proteins: Chaperones as potential indirect anti-inflammatory agents. MOLECULAR CHAPERONES IN HUMAN DISORDERS 2019; 114:153-219. [DOI: 10.1016/bs.apcsb.2018.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Cairns T, Müntze J, Gernert J, Spingler L, Nordbeck P, Wanner C. Hot topics in Fabry disease. Postgrad Med J 2018; 94:709-713. [PMID: 30559317 PMCID: PMC6581083 DOI: 10.1136/postgradmedj-2018-136056] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/06/2018] [Accepted: 12/01/2018] [Indexed: 01/17/2023]
Abstract
Fabry disease is a rare inborn error of the enzyme α-galactosidase (α-Gal) and results in lysosomal substrate accumulation in tissues with a wide range of clinical presentations. The disease has attracted a lot of interest over the last years, in particular since enzyme replacement therapy (ERT) has become widely available in 2001. With rising awareness and rising numbers of (diagnosed) patients, physicians encounter new challenges. Over 900 α-Gal gene mutations are currently known, some with doubtful clinical significance, posing diagnostic and prognostic difficulties for the clinician and a lot of uncertainty for patients. Another challenge are patients who develop neutralising antibodies to ERT, which possibly leads to reduced therapy effectiveness. In this article, we summarise the latest developments in the science community regarding diagnostics and management of this rare lysosomal storage disorder and offer an outlook to future treatments.
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Affiliation(s)
- Tereza Cairns
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Jonas Müntze
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Judith Gernert
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Lisa Spingler
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Peter Nordbeck
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Christoph Wanner
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
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Muhammed MT, Aki-Yalcin E. Homology modeling in drug discovery: Overview, current applications, and future perspectives. Chem Biol Drug Des 2018; 93:12-20. [PMID: 30187647 DOI: 10.1111/cbdd.13388] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/29/2018] [Accepted: 08/04/2018] [Indexed: 02/06/2023]
Abstract
Homology modeling is one of the computational structure prediction methods that are used to determine protein 3D structure from its amino acid sequence. It is considered to be the most accurate of the computational structure prediction methods. It consists of multiple steps that are straightforward and easy to apply. There are many tools and servers that are used for homology modeling. There is no single modeling program or server which is superior in every aspect to others. Since the functionality of the model depends on the quality of the generated protein 3D structure, maximizing the quality of homology modeling is crucial. Homology modeling has many applications in the drug discovery process. Since drugs interact with receptors that consist mainly of proteins, protein 3D structure determination, and thus homology modeling is important in drug discovery. Accordingly, there has been the clarification of protein interactions using 3D structures of proteins that are built with homology modeling. This contributes to the identification of novel drug candidates. Homology modeling plays an important role in making drug discovery faster, easier, cheaper, and more practical. As new modeling methods and combinations are introduced, the scope of its applications widens.
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Affiliation(s)
- Muhammed Tilahun Muhammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey.,Department of Basic Biotechnology, Institute of Biotechnology, Ankara University, Ankara, Turkey
| | - Esin Aki-Yalcin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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