151
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Rickert V, Wagenhäuser L, Nordbeck P, Wanner C, Sommer C, Rost S, Üçeyler N. Stratification of Fabry mutations in clinical practice: a closer look at α-galactosidase A-3D structure. J Intern Med 2020; 288:593-604. [PMID: 32583479 DOI: 10.1111/joim.13125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/25/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND Fabry disease (FD) is an X-linked lysosomal storage and multi-system disorder due to mutations in the α-galactosidase A (α-GalA) gene. We investigated the impact of individual amino acid exchanges in the α-GalA 3D-structure on the clinical phenotype of FD patients. PATIENTS AND METHODS We enrolled 80 adult FD patients with α-GalA missense mutations and stratified them into three groups based on the amino acid exchange location in the α-GalA 3D-structure: patients with active site mutations, buried mutations and other mutations. Patient subgroups were deep phenotyped for clinical and laboratory parameters and FD-specific treatment. RESULTS Patients with active site or buried mutations showed a severe phenotype with multi-organ involvement and early disease manifestation. Patients with other mutations had a milder phenotype with less organ impairment and later disease onset. α-GalA activity was lower in patients with active site or buried mutations than in those with other mutations (P < 0.01 in men; P < 0.05 in women) whilst lyso-Gb3 levels were higher (P < 0.01 in men; <0.05 in women). CONCLUSIONS The type of amino acid exchange location in the α-GalA 3D-structure determines disease severity and temporal course of symptom onset. Patient stratification using this parameter may become a useful tool in the management of FD patients.
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Affiliation(s)
- V Rickert
- From the, Department of Neurology, University of Würzburg, Würzburg, Germany
| | - L Wagenhäuser
- From the, Department of Neurology, University of Würzburg, Würzburg, Germany
| | - P Nordbeck
- Fabry Centre for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany.,Department of Internal Medicine, Division of Cardiology, University of Würzburg, Würzburg, Germany
| | - C Wanner
- Fabry Centre for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany.,Department of Internal Medicine, Division of Nephrology, University of Würzburg, Würzburg, Germany
| | - C Sommer
- From the, Department of Neurology, University of Würzburg, Würzburg, Germany.,Fabry Centre for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany
| | - S Rost
- Institute of Human Genetics, University of Würzburg, Würzburg, Germany
| | - N Üçeyler
- From the, Department of Neurology, University of Würzburg, Würzburg, Germany.,Fabry Centre for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany
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152
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Sawada T, Kido J, Sugawara K, Matsumoto S, Takada F, Tsuboi K, Ohtake A, Endo F, Nakamura K. Detection of novel Fabry disease-associated pathogenic variants in Japanese patients by newborn and high-risk screening. Mol Genet Genomic Med 2020; 8:e1502. [PMID: 33016649 PMCID: PMC7667298 DOI: 10.1002/mgg3.1502] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/13/2020] [Accepted: 08/30/2020] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND In Japan, newborn and high-risk screening for Fabry disease (FD), an inherited X-linked disorder caused by GLA mutations, using dried blood spots was initiated in 2006. In newborn screening, 599,711 newborns were screened by December 2018, and 57 newborns from 54 families with 26 FD-associated variants were detected. In high-risk screening, 18,235 individuals who had symptoms and/or a family history of FD were screened by March 2019, and 236 individuals from 143 families with 101 FD-associated variants were detected. Totally 3, 116 variants were detected; 41 of these were not registered in Fabry-database.org or ClinVar and 33 were definitely novel. Herein, we report the clinical outcomes and discuss the pathogenicity of the 41 variants. METHODS We traced nine newborns and 46 individuals with the 33 novel variants, and nine newborns and 10 individuals with eight other variants not registered in the FD database, and analyzed the information on symptoms, treatments, and outcomes. RESULTS Thirty-eight of the 46 individuals with the 33 novel variants showed symptoms and received enzyme-replacement therapy and/or chaperone treatment. CONCLUSION Delayed diagnosis should be avoided in patients with FD. Our results will help clinicians diagnose FD and determine the appropriate treatment for patients with these variants.
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Affiliation(s)
- Takaaki Sawada
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Jun Kido
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Keishin Sugawara
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Shirou Matsumoto
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
| | - Fumio Takada
- Department of Medical Genetics and GenomicsKitasato University Graduate School of Medical SciencesKanagawaJapan
| | | | - Akira Ohtake
- Department of Pediatrics & Clinical GenomicsFaculty of MedicineSaitama Medical UniversitySaitamaJapan
| | - Fumio Endo
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
- Kumamoto‐Ezuko Medical Center for Disabled ChildrenKumamotoJapan
| | - Kimitoshi Nakamura
- Department of PediatricsGraduate School of Medical SciencesKumamoto UniversityKumamotoJapan
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153
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Nampoothiri S, Yesodharan D, Bhattacherjee A, Ahamed H, Puri RD, Gupta N, Kabra M, Ranganath P, Bhat M, Phadke S, Radha Rama Devi A, Jagadeesh S, Danda S, Sylaja PN, Mandal K, Bijarnia‐Mahay S, Makkar R, Verma IC, Dalal A, Ramaswami U. Fabry disease in India: A multicenter study of the clinical and mutation spectrum in 54 patients. JIMD Rep 2020; 56:82-94. [PMID: 33204599 PMCID: PMC7653245 DOI: 10.1002/jmd2.12156] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 11/18/2022] Open
Abstract
Fabry disease (FD) is a treatable X linked lysosomal storage disorder with a wide phenotypic spectrum. There is a scarcity of published data on the burden of FD in India. This study evaluates the clinical and molecular spectrum of Indian patients with FD. In this multicentric study involving 10 tertiary referral centers in India, we analyzed the clinical course and genotype of 54 patients from 37 families. Family screening identified 19 new patients (35%) from 12 index cases. Then, 33 GLA gene variants were identified in 49/54 (90.7%) which included 11 novel and 22 known pathogenic variants. Of the 54 patients in our cohort, 40 patients had "classical" and 10 patients had a "nonclassical" presentation. The symptoms and signs included kidney dysfunction in 38/54 (70.3%), neuropathic pain in 34/54 (62.9%), left ventricular hypertrophy in 22/49 (44.8%) and stroke in 5/54 (9.2%). Female heterozygotes were 10/54 (18.5%) of whom 2 were index cases. There was a significant delay in reaching the diagnosis of 11.7 years. Enzyme replacement therapy was initiated in 28/54 (51.8%) patients with significant improvement of neuropathic pain and gastrointestinal symptoms. This study highlights the clinical presentation and mutational spectrum of FD in India and suggests that family screening and screening of high-risk groups (hypertrophic cardiomyopathy, idiopathic chronic renal failure and cryptogenic stroke) could be the most cost-effective strategies for early identification of FD.
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Affiliation(s)
- Sheela Nampoothiri
- Department of Pediatric GeneticsAmrita Institute of Medical Sciences and Research CentreCochinKeralaIndia
| | - Dhanya Yesodharan
- Department of Pediatric GeneticsAmrita Institute of Medical Sciences and Research CentreCochinKeralaIndia
| | - Amrita Bhattacherjee
- Diagnostics DivisionCentre for DNA Fingerprinting and Diagnostics (CDFD)HyderabadIndia
| | - Hisham Ahamed
- Department of CardiologyAmrita Institute of Medical Sciences and Research CentreCochinKeralaIndia
| | - Ratna Dua Puri
- Institute of Genetics and GenomicsSir Ganga Ram HospitalNew DelhiIndia
| | - Neerja Gupta
- Division of Genetics, Department of PediatricsAll India Institute of Medical SciencesNew DelhiIndia
| | - Madhulika Kabra
- Division of Genetics, Department of PediatricsAll India Institute of Medical SciencesNew DelhiIndia
| | - Prajnya Ranganath
- Department of Medical GeneticsNizam's Institute of Medical SciencesHyderabadIndia
| | - Meenakshi Bhat
- Department of Clinical GeneticsCentre for Human GeneticsBangaloreIndia
| | - Shubha Phadke
- Department of Medical GeneticsSanjay Gandhi Postgraduate Institute of Medical SciencesLucknowIndia
| | | | - Sujatha Jagadeesh
- Department of Clinical Genetics and Genetic CounselingMediscan SystemsChennaiIndia
| | - Sumita Danda
- Department of Clinical GeneticsChristian Medical College and HospitalVelloreIndia
| | - Padmavathy Narayana Sylaja
- Comprehensive Stroke Care Program, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST)TrivandrumKeralaIndia
| | - Kausik Mandal
- Department of Medical GeneticsSanjay Gandhi Postgraduate Institute of Medical SciencesLucknowIndia
| | | | | | | | - Ashwin Dalal
- Diagnostics DivisionCentre for DNA Fingerprinting and Diagnostics (CDFD)HyderabadIndia
| | - Uma Ramaswami
- Lysosomal Disorders Unit, Institute of Immunity and TransplantationRoyal Free London NHS Foundation TrustLondonUK
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154
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Hopkin RJ, Feldt-Rasmussen U, Germain DP, Jovanovic A, Martins AM, Nicholls K, Ortiz A, Politei J, Ponce E, Varas C, Weidemann F, Yang M, Wilcox WR. Improvement of gastrointestinal symptoms in a significant proportion of male patients with classic Fabry disease treated with agalsidase beta: A Fabry Registry analysis stratified by phenotype. Mol Genet Metab Rep 2020; 25:100670. [PMID: 33163363 PMCID: PMC7606866 DOI: 10.1016/j.ymgmr.2020.100670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/12/2020] [Accepted: 10/12/2020] [Indexed: 12/22/2022] Open
Abstract
Background Fabry disease is an inherited disorder of glycolipid metabolism with progressive involvement of multiple organs, including the gastrointestinal tract, in classically affected male patients. Clinical presentations in males with later-onset Fabry phenotypes are more heterogeneous and largely dependent on the level of residual α-galactosidase A activity. Methods We assessed agalsidase beta treatment outcomes of gastrointestinal symptoms in adult males with classic or later-onset Fabry disease. Self-reports of abdominal pain and diarrhea ('present'/'not present' since previous assessment) at last clinical visit (≥0.5 year of follow-up) were compared with treatment-baseline. Results Classic male patients were considerably younger at first treatment than the fewer males with later-onset phenotypes (36 vs. ~47 years) and reported gastrointestinal symptoms more frequently at baseline (abdominal pain: 56% vs. 13%; diarrhea: 57% vs. 23%). As compared with baseline, significantly fewer classic patients reported abdominal pain after a median of 4.7 years of treatment (N = 171, 56% vs. 41%, P < 0.001). Moreover, significantly fewer patients reported diarrhea after 5.5 years of follow-up (N = 169, 57% vs. 47%, P < 0.05). Among the males with later-onset phenotypes, albeit statistically non-significant, abdominal pain reports reduced after a median of 4.2 years (N = 48, 13% vs. 4%) and diarrhea reports reduced after a median of 4.4 years of treatment (N = 47, 23% vs. 13%). Conclusions Sustained treatment with agalsidase beta was associated with improvement in abdominal pain and diarrhea in a significant proportion of classic male Fabry patients. Males with later-onset phenotypes reported gastrointestinal symptoms much less frequently at baseline as compared with classic patients, and non-significant reductions were observed.
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Affiliation(s)
- Robert J. Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Corresponding author at: Division of Human Genetics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., ML 4006, Cincinnati, OH 45229-3039, USA.
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Dominique P. Germain
- French Referral Centre for Fabry disease, Division of Medical Genetics, Paris Saclay University, Garches, France
| | - Ana Jovanovic
- The Mark Holland Unit, Department of Endocrinology and Metabolic Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - Ana Maria Martins
- Reference Center for Inborn Errors of Metabolism, Federal University of São Paulo, São Paulo, Brazil
| | - Kathleen Nicholls
- Department of Nephrology, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Alberto Ortiz
- Unidad de Dialisis, IIS-Fundación Jiménez Díaz, UAM, IRSIN and REDINREN, Madrid, Spain
| | - Juan Politei
- Neurology Department, Fundación para el Estudio de las Enfermedades Neurometabólicas (FESEN), Buenos Aires, Argentina
| | - Elvira Ponce
- Global Medical Affairs Rare Diseases, Sanofi Genzyme, Cambridge, MA, USA
| | - Carmen Varas
- Fabry Disease Multidisciplinary Team, Hospital San Pablo de Coquimbo, Coquimbo, Chile
| | - Frank Weidemann
- Medical Clinic I, Klinikum Vest, Knappschaftskrankenhaus, Recklinghausen, Germany
| | - Meng Yang
- Epidemiology & Biostatistics, Sanofi Genzyme, Cambridge, MA, USA
| | - William R. Wilcox
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
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155
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Henderson N, Berry L, Laney DA. Fabry Disease practice resource: Focused revision. J Genet Couns 2020; 29:715-717. [DOI: 10.1002/jgc4.1318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Nadene Henderson
- Division of Medical Genetics UPMC Children’s Hospital of Pittsburgh Pittsburgh PA USA
| | - Lisa Berry
- Division of Human Genetics Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Dawn A. Laney
- Department of Human Genetics Emory School of Medicine Atlanta GA USA
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156
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Kant S, Atta MG. Therapeutic advances in Fabry disease: The future awaits. Biomed Pharmacother 2020; 131:110779. [PMID: 33152937 DOI: 10.1016/j.biopha.2020.110779] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/12/2020] [Accepted: 09/17/2020] [Indexed: 02/02/2023] Open
Abstract
Fabry disease (FD) is an X-linked disorder caused by mutations in GLA gene responsible for coding of the lysosomal enzyme alpha-galactosidase A(α-GAL). The resultant accumulation of globotriaosylceramide (Gb-3) leads to multisystemic disease including progressive chronic kidney disease, hypertrophic cardiomyopathy, stroke, angiokeratomas and corneal whorls. Current treatments include enzyme replacement therapy (ERT), along with recent advent of chaperone therapy. ERT has not shown to have dramatic improvement in outcomes for all organ systems, with benefit mostly seen in kidney disease and reduction in left ventricular hypertrophy. ERT, however, is associated with formation of anti-drug antibodies and requirement of long-term venous access, while chaperone therapy can only be used in amenable mutations. A multitude of therapies are now under investigation in various phases of clinical trials. These include pegylated form of α-GAL (pegunigalsidase alpha), gene therapy (both in-vivo and ex-vivo methods), mRNA therapy (inducing production of α-GAL) and substrate reduction therapy (inhibitors of glucosylceramide synthase leading to reduction of Gb-3). This review encapsulates literature pertaining to current and investigational therapies for FD.
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Affiliation(s)
- Sam Kant
- Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mohamed G Atta
- Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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157
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van der Veen SJ, Hollak CEM, van Kuilenburg ABP, Langeveld M. Developments in the treatment of Fabry disease. J Inherit Metab Dis 2020; 43:908-921. [PMID: 32083331 PMCID: PMC7540041 DOI: 10.1002/jimd.12228] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 12/19/2022]
Abstract
Enzyme replacement therapy (ERT) with recombinant α-galactosidase A (r-αGAL A) for the treatment of Fabry disease has been available for over 15 years. Long-term treatment may slow down disease progression, but cardiac, renal, and cerebral complications still develop in most patients. In addition, lifelong intravenous treatment is burdensome. Therefore, several new treatment approaches have been explored over the past decade. Chaperone therapy (Migalastat; 1-deoxygalactonojirimycin) is the only other currently approved therapy for Fabry disease. This oral small molecule aims to improve enzyme activity of mutated α-galactosidase A and can only be used in patients with specific mutations. Treatments currently under evaluation in (pre)clinical trials are second generation enzyme replacement therapies (Pegunigalsidase-alfa, Moss-aGal), substrate reduction therapies (Venglustat and Lucerastat), mRNA- and gene-based therapy. This review summarises the knowledge on currently available and potential future options for the treatment of Fabry disease.
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Affiliation(s)
- Sanne J. van der Veen
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAZAmsterdamThe Netherlands
| | - Carla E. M. Hollak
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAZAmsterdamThe Netherlands
| | - André B. P. van Kuilenburg
- Department of Clinical Chemistry, Gastroenterology & MetabolismAmsterdam UMC, University of AmsterdamAZAmsterdamThe Netherlands
| | - Mirjam Langeveld
- Department of Endocrinology and MetabolismAmsterdam UMC, University of AmsterdamAZAmsterdamThe Netherlands
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158
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Wang WT, Sung SH, Liao JN, Hsu TR, Niu DM, Yu WC. Cardiac manifestations in patients with classical or cardiac subtype of Fabry disease. J Chin Med Assoc 2020; 83:825-829. [PMID: 32649415 PMCID: PMC7478196 DOI: 10.1097/jcma.0000000000000379] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Fabry disease (FD) is an X-linked lysosomal storage disorder engendered by a deficiency of the enzyme α-galactosidase A, leading to systemic accumulation of glycolipids. Studies have reported that the cardiac subtype of FD has a later onset and minimal extracardiac involvement. However, whether the severity of cardiac involvement differs between the classic and cardiac subtypes of FD remains unclear. METHODS We enrolled consecutive patients with classic FD (n = 22; median age [25th-75th percentile], 47.0 [32.75-56.25] years; men, 72.7%) as well as age- and sex-matched patients with a later-onset cardiac subtype of FD who were selected from our cohort of patients with IVS4 919G>A mutation. FD was diagnosed on the basis of clinical symptoms/signs and pedigree screening of index case, plasma α-galactosidase activity, and molecular analysis. Data on clinical manifestations, laboratory findings, and echocardiogram findings were collected before enzyme replacement treatment. Disease severity was evaluated using the Mainz Severity Score Index score. RESULTS All female patients demonstrated heterozygous mutations, with five, one, and four of them showing normal α-galactosidase activity, classic FD, and cardiac subtype of FD, respectively. The distributions of left ventricular performance indices and comorbidities, including hypertension, diabetes mellitus, and dyslipidemia, were similar between the two groups. Moreover, MSSI cardiovascular scores did not differ significantly between the groups (classic vs cardiac subtype, 10.0 [2.0-12.5] vs 10.5 [9.0-15.25]; p = 0.277). CONCLUSION Cardiac manifestations are similar between patients with classic and cardiac subtype of FD.
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Affiliation(s)
- Wei-Ting Wang
- Department of Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Shih-Hsien Sung
- Department of Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Jo-Nan Liao
- Department of Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Ting-Rong Hsu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Dau-Ming Niu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Wen-Chung Yu
- Department of Medicine, Division of Cardiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Address correspondence. Dr. Wen-Chung Yu, Department of Medicine, Division of Cardiology, Taipei Veterans General Hospital, 201, Section 2, Shi-Pai Road, Taipei 112, Taiwan, ROC. Email address: (W.-C. Yu)
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159
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Körver S, Geurtsen GJ, Hollak CEM, van Schaik IN, Longo MGF, Lima MR, Dijkgraaf MGW, Langeveld M. Cognitive functioning and depressive symptoms in Fabry disease: A follow-up study. J Inherit Metab Dis 2020; 43:1070-1081. [PMID: 32510623 PMCID: PMC7540266 DOI: 10.1002/jimd.12271] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/19/2020] [Accepted: 06/04/2020] [Indexed: 12/13/2022]
Abstract
Patients with Fabry disease (FD) have a high prevalence of depressive symptoms and can suffer from cognitive impairment, negatively affecting their life. The course of cognitive functioning and depressive symptoms in FD is unknown. The aim of this prospective cohort study was to describe changes in cognitive functioning and depressive symptoms and to identify related variables in patients with FD over 1 year. Assessments were conducted twice, using a neuropsychological test battery and the Centre of Epidemiological Studies Depression scale (CESD). Eighty-one patients were included of which 76 patients (94%) completed both assessments (age: 44 years, 34% men, 75% classical phenotype). A significant decrease in cognitive functioning was found in four patients (5%), with patients regressing from excellent to average/good. Changes were not related to sex, phenotype, stroke, IQ or CESD scores. CESD scores ≥16 were present in 29 patients (38%) at baseline. Using the reliable change index a decrease in CESD scores was found in six patients (8%). Decreased CESD scores were independently related to employing a positive and problem solving coping style and increased CESD scores to an avoiding and brooding coping style and worsening health perception. We found no major changes in cognitive functioning in patients with FD during 1 year follow-up making it an unsuitable outcome in FD treatment trials. Considering the high prevalence of persistent depressive symptoms, assessment of depressive symptoms should be part of routine follow-up. Altering coping styles and health perception may improve psychological well-being in FD.
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Affiliation(s)
- Simon Körver
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Gert J. Geurtsen
- Department of Medical PsychologyAmsterdam UMC, Location AMC, University of Amsterdam, Amsterdam NeuroscienceAmsterdamThe Netherlands
| | - Carla E. M. Hollak
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Ivo N. van Schaik
- Department of Neurology, Amsterdam UMC, Location AMCUniversity of AmsterdamAmsterdamThe Netherlands
- Spaarne GasthuisHaarlemThe Netherlands
| | - Maria G. F. Longo
- Department of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Marjana R. Lima
- Department of RadiologyHospital Moinhos de VentoPorto AlegreBrazil
| | - Marcel G. W. Dijkgraaf
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, Location AMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Mirjam Langeveld
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
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160
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Variables Associated with Glomerular Hyperfiltration in Fabry Disease Patients. Nephrourol Mon 2020. [DOI: 10.5812/numonthly.105759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Fabry disease is a genetic disorder caused by the deficiency of the lysosomal α-galactosidase A enzyme. This failure generates the storage of globotriaosylceramide in different cells with a progressive multi-organ involvement. Objectives: To report the prevalence of glomerular hyperfiltration in Fabry disease patients and the association with clinical variables. Methods: Adult patients (≥ 18 years) at the moment of FD diagnosis were evaluated. The variables studied were: central and peripheral nervous system compromise, presence of arterial hypertension, cardiac arrhythmia, left ventricular hypertrophy, albuminuria/proteinuria, cornea verticillata, gastrointestinal involvement, treatment with inhibitors of the renin-angiotensin-aldosterone system, deafness, and presence of angiokeratomas. Results: Forty-eight adults with Fabry disease (35.9 ± 11.7 years), 28 women (58.3%), and 20 men (41.7%) were analyzed. Nine (18.8%) patients with glomerular hyperfiltration, including six females and three males (mean age: 28.8 years), were detected. A significant association between and central nervous system (P = 0.021) and peripheral nervous system (P = 0.001) compromise, cardiac arrhythmia (P = 0.001), cornea verticillata (P = 0.009), and gastrointestinal involvement (P = 0.009) was observed. However, no association was found between glomerular hyperfiltration and proteinuria or treatment with inhibitors of the renin-angiotensin-aldosterone system. Conclusions: This research showed a higher prevalence of glomerular hyperfiltration in the younger group and a significant association between glomerular hyperfiltration and some typical manifestations of classic Fabry patients. Although more studies are needed, it is concluded that other mechanisms than glomerular hyperfiltration, like injury by glycosphingolipids deposit into the filtration barrier, might influence the protein loss in Fabry nephropathy.
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161
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Onay H, Bolat H, Kılıç Yıldırım G, Kose E, Kalkan Uçar S, Aşıkovalı S, Özkınay F, Çoker M. Analysis of the alpha galactosidase gene: mutation profile and description of two novel mutations with extensive literature review in Turkish population. J Pediatr Endocrinol Metab 2020; 33:1245-1250. [PMID: 32813676 DOI: 10.1515/jpem-2020-0056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/16/2020] [Indexed: 11/15/2022]
Abstract
Objectives Fabry disease (FD, OMIM #301500) is a rare and progressive X-linked lysosomal storage disorder. FD is caused by mutations in the GLA gene on chromosome Xq22. Methods In this article, we aimed to present the largest sample of GLA mutation spectrum including common and novel variants in Turkish population. GLA gene sequence analysis was performed on the subjects who applied to the department of medical genetics with the preliminary diagnosis of FD between 2013 and 2018. Results We detected 22 different mutations as two novel [(p.F69S(c.206T>C), p.P205A (c.613C>G)] and 20 previously reported GLA mutations in 47 individuals from 22 unrelated families. These mutations included 14 missense mutations, four nonsense mutations, two small deletions, one small deletion/insertion and one small insertion. Major clinical findings of the female case with p.F69S(c.206T>C) mutation were cornea verticillata, acroparesthesia, angiokeratoma, psychiatric and gastrointestinal symptoms. Other novel mutation (p.P205A [c.613C>G]) was carried by a male case presenting gastrointestinal symptoms. Conclusions We described clinical findings of two cases that had novel mutations to provide more insight in genotype-phenotype correlation. We presented the largest mutation spectrum in Turkish population and reviewed previous mutations in this article.
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Affiliation(s)
- Hüseyin Onay
- Department of Medical Genetics, Ege University Faculty of Medicine, Izmir, Turkey
| | - Hilmi Bolat
- Department of Medical Genetics, Balıkesir Atatürk City Hospital, Balikesir, Turkey
| | - Gonca Kılıç Yıldırım
- Department of Pediatrics, Division of Pediatric Metabolism and Nutrition, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Engin Kose
- Department of Pediatrics, Division of Pediatric Metabolism and Nutrition, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Sema Kalkan Uçar
- Department of Pediatrics, Division of Pediatric Metabolism and Nutrition, Ege University Faculty of Medicine, Izmir, Turkey
| | - Semih Aşıkovalı
- Department of Medical Genetics, Ege University Faculty of Medicine, Izmir, Turkey
| | - Ferda Özkınay
- Department of Medical Genetics, Ege University Faculty of Medicine, Izmir, Turkey.,Department of Pediatrics, Division of Pediatric Genetics, Ege University Faculty of Medicine, Izmir, Turkey
| | - Mahmut Çoker
- Department of Pediatrics, Division of Pediatric Metabolism and Nutrition, Ege University Faculty of Medicine, Izmir, Turkey
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162
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Predicting the Development of Anti-Drug Antibodies against Recombinant alpha-Galactosidase A in Male Patients with Classical Fabry Disease. Int J Mol Sci 2020; 21:ijms21165784. [PMID: 32806627 PMCID: PMC7460974 DOI: 10.3390/ijms21165784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
Fabry Disease (FD) is a rare, X-linked, lysosomal storage disease that mainly causes renal, cardiac and cerebral complications. Enzyme replacement therapy (ERT) with recombinant alpha-galactosidase A is available, but approximately 50% of male patients with classical FD develop inhibiting anti-drug antibodies (iADAs) that lead to reduced biochemical responses and an accelerated loss of renal function. Once immunization has occurred, iADAs tend to persist and tolerization is hard to achieve. Here we developed a pre-treatment prediction model for iADA development in FD using existing data from 120 classical male FD patients from three European centers, treated with ERT. We found that nonsense and frameshift mutations in the α-galactosidase A gene (p = 0.05), higher plasma lysoGb3 at baseline (p < 0.001) and agalsidase beta as first treatment (p = 0.006) were significantly associated with iADA development. Prediction performance of a Random Forest model, using multiple variables (AUC-ROC: 0.77) was compared to a logistic regression (LR) model using the three significantly associated variables (AUC-ROC: 0.77). The LR model can be used to determine iADA risk in individual FD patients prior to treatment initiation. This helps to determine in which patients adjusted treatment and/or immunomodulatory regimes may be considered to minimize iADA development risk.
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163
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Kuntz T, Mitrakos G, Koushk-Jalali B, Oellig F, Eismann L, Tigges C, Kreuter A. [Diffuse hyperkeratotic papules of the lower abdomen and genital region in a 38-year old male patient]. Internist (Berl) 2020; 61:621-625. [PMID: 32367302 DOI: 10.1007/s00108-020-00793-1] [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: 07/29/2024]
Abstract
A patient with diffuse angiokeratomas of the lower abdomen and genital region was diagnosed with Fabry disease on the basis of genetic testing. Fabry disease is an X-linked lysosomal storage disease that can affect several organ systems including the heart or kidneys, resulting in reduced median survival. Pathogenetically, Fabry disease leads to a deficiency of the lysosomal enzyme α‑galactosidase A (α-GAL A). Treatment options include lifelong enzyme replacement therapy or chaperone therapy.
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Affiliation(s)
- T Kuntz
- Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland
| | - G Mitrakos
- Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland
| | - B Koushk-Jalali
- Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland
| | - F Oellig
- Institut für Pathologie, Mülheim an der Ruhr, Deutschland
| | - L Eismann
- Klinik für Urologie, Ludwig-Maximilians-Universität, München, Deutschland
| | - C Tigges
- Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland
| | - A Kreuter
- Klinik für Dermatologie, Venerologie und Allergologie, HELIOS St. Elisabeth Klinik Oberhausen, Universität Witten/Herdecke, Josefstr. 3, 46045, Oberhausen, Deutschland.
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164
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Shimohata H, Yamashita M, Ohgi K, Maruyama H, Takayasu M, Hirayama K, Kobayashi M. Clinical course and pathological findings of two late-onset Fabry hemizygous patients including mulberry cell counts after enzyme replacement therapy. CEN Case Rep 2020; 9:237-242. [PMID: 32189245 PMCID: PMC7320132 DOI: 10.1007/s13730-020-00463-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/03/2020] [Indexed: 10/24/2022] Open
Abstract
Fabry disease is an X-linked inherited lysosomal storage disorder caused by a deficiency of α-galactosidase A activity, resulting in the intracellular accumulation of globotriaosylceramide and related glycosphingolipids. The phenotypes of Fabry disease in both males and females are grouped into two categories: the classical type and the late-onset type. The classical type shows general symptoms including angiokeratoma(s), acroparesthesia, hypohidrosis, corneal opacity, and gastrointestinal symptoms from an early age. The late-onset type shows cardiac or renal (or both) symptoms from a late age. We present herein the clinical course and pathological findings of two late-onset hemizygous Fabry patients after the initiation of enzyme replacement therapy (ERT), along with their mulberry cell counts during treatment. One patient's case was a renal-variant type without general symptoms; he showed stable renal function and mild proteinuria but little histological improvement with no change in the mulberry cell count during ERT. The other patient had a cardiac-variant type with renal pathological abnormality. He achieved a mild improvement of renal pathological findings, and his mulberry cell count gradually decreased during the treatment. These findings indicate that monitoring the mulberry cell count might help assess the efficacy of ERT, as a renal pathology tool.
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Affiliation(s)
- Homare Shimohata
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan.
| | - Marina Yamashita
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Kentaro Ohgi
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Hiroshi Maruyama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Mamiko Takayasu
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Kouichi Hirayama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Masaki Kobayashi
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
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165
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Simoncini C, Torri S, Montano V, Chico L, Gruosso F, Tuttolomondo A, Pinto A, Simonetta I, Cianci V, Salviati A, Vicenzi V, Marchi G, Girelli D, Concolino D, Sestito S, Zedde M, Siciliano G, Mancuso M. Oxidative stress biomarkers in Fabry disease: is there a room for them? J Neurol 2020; 267:3741-3752. [PMID: 32719972 PMCID: PMC7674365 DOI: 10.1007/s00415-020-10044-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/14/2020] [Accepted: 07/01/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Fabry disease (FD) is an X-linked lysosomal storage disorder, caused by deficient activity of the alpha-galactosidase A enzyme leading to progressive and multisystemic accumulation of globotriaosylceramide. Recent data point toward oxidative stress signalling which could play an important role in both pathophysiology and disease progression. METHODS We have examined oxidative stress biomarkers [Advanced Oxidation Protein Products (AOPP), Ferric Reducing Antioxidant Power (FRAP), thiolic groups] in blood samples from 60 patients and 77 healthy controls. RESULTS AOPP levels were higher in patients than in controls (p < 0.00001) and patients presented decreased levels of antioxidant defences (FRAP and thiols) with respect to controls (p < 0.00001). In a small group of eight treatment-naïve subjects with FD-related mutations, we found altered levels of oxidative stress parameters and incipient signs of organ damage despite normal lyso-Gb3 levels. CONCLUSIONS Oxidative stress occurs in FD in both treated and naïve patients, highlighting the need of further research in oxidative stress-targeted therapies. Furthermore, we found that oxidative stress biomarkers may represent early markers of disease in treatment-naïve patients with a potential role in helping interpretation of FD-related mutations and time to treatment decision.
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Affiliation(s)
- C Simoncini
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - S Torri
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - V Montano
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - L Chico
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - F Gruosso
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - A Tuttolomondo
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant, Excellence and Internal and Specialized Medicine (Promise) G. D'Alessandro, University of Palermo, Palermo, Italy
| | - A Pinto
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant, Excellence and Internal and Specialized Medicine (Promise) G. D'Alessandro, University of Palermo, Palermo, Italy
| | - I Simonetta
- Internal Medicine and Stroke Care Ward, Department of Promoting Health, Maternal-Infant, Excellence and Internal and Specialized Medicine (Promise) G. D'Alessandro, University of Palermo, Palermo, Italy
| | - V Cianci
- Regional Epilepsy Centre, Great Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - A Salviati
- Lab Functional Genomics, Department of Biotechnology, Univ Verona, Genartis srl, Verona, Italy
| | - V Vicenzi
- Medical Genetics Unit, ASL 9, Verona, Italy
| | - G Marchi
- Internal Medicine Unit, Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Italy
| | - D Girelli
- Internal Medicine Unit, Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Italy
| | - D Concolino
- Department of Medical and Surgical Sciences, Pediatric Unit, "Magna Graecia" University, Catanzaro, Italy
| | - S Sestito
- Department of Medical and Surgical Sciences, Pediatric Unit, "Magna Graecia" University, Catanzaro, Italy
| | - M Zedde
- Azienda Unità Sanitaria Locale, IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - G Siciliano
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - Michelangelo Mancuso
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy.
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166
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Gaballa S, AlJaf A, Lindsay J, Patel K, Hlaing KM. Rare Etiology of Renal Failure in a 25-Year-Old Caucasian Man: Fabry Disease With a Novel Mutation of GLA Gene. Cureus 2020; 12:e9136. [PMID: 32699723 PMCID: PMC7372230 DOI: 10.7759/cureus.9136] [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] [Indexed: 11/21/2022] Open
Abstract
Fabry disease (FD) is an X-linked recessive lysosomal storage disease caused by a mutation of the galactosidase alpha (GLA) gene, leading to deficiency of α-galactosidase A (alpha-Gal A). This deficiency results in a progressive, multiorgan accumulation of glycolipids, most notably globotriaosylceramide (Gb3), leading to multiorgan failure and subsequently premature death. Gb3 accumulation in the podocytes, epithelial, and mesangial cells of the glomeruli results in progressive renal disease and eventually renal failure and hemodialysis (HD). There are two types of FD: early-onset classical type 1 and late-onset type 2. Although nearly a thousand mutations of the GLA gene have been identified, the majority of them are of unknown significance. Herein we report the case of a 25-year-old Caucasian male with no significant medical history who presented with peripheral neuropathy and end-stage renal failure, requiring HD. He was diagnosed with FD based on the electron microscopy findings of renal biopsy and severely reduced alpha-Gal A activity (<0.4 nmol/mL/hour). A novel mutation of c.281G>T; p.Cys94Phe was identified. On discharge from our facility, he was referred to a renal transplant center and genetic counseling.
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Affiliation(s)
- Salem Gaballa
- Internal Medicine, LewisGale Medical Center, Salem, USA
| | - Avan AlJaf
- Internal Medicine, LewisGale Medical Center, Salem, USA
| | - Jane Lindsay
- Internal Medicine, LewisGale Medical Center, Salem, USA
| | - Kashyap Patel
- Internal Medicine, LewisGale Medical Center, Salem, USA
| | - Kyaw M Hlaing
- Internal Medicine, LewisGale Medical Center, Salem, USA
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167
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Michaud M, Mauhin W, Belmatoug N, Garnotel R, Bedreddine N, Catros F, Ancellin S, Lidove O, Gaches F. When and How to Diagnose Fabry Disease in Clinical Pratice. Am J Med Sci 2020; 360:641-649. [PMID: 32723516 DOI: 10.1016/j.amjms.2020.07.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/30/2020] [Accepted: 07/09/2020] [Indexed: 01/27/2023]
Abstract
Fabry disease is a frequent lysosomal storage disorder secondary to the deficiency of alpha-galactosidase A enzyme. This X-linked genetic disease realizes progressive and systemic manifestations that affect both male and female. Fabry disease may present as "classical", as "late-onset" or "non-classical" forms. Symptoms and organ involvements of classical Fabry disease are acral pain crisis, cornea verticillata, hypertrophic cardiomyopathy, stroke and chronic kidney disease with proteinuria. Other common symptoms are often poorly recognized, such as gastrointestinal or ear involvements. In classical Fabry disease, symptoms first appear during childhood or during teenage years in males, but later in females. Patients with non-classical or late-onset Fabry disease have delayed manifestations or a single-organ involvement. Diagnosis is therefore difficult when classical organ involvements are missing, in paucisymptomatic patients or in late-onset forms. Recognition of Fabry disease is important because effective treatments are available. They have to be prescribed early. In male, diagnosis is made with alpha-galactosidase A enzyme activity dosage in leukocyte, that is very low or null in classical forms and under 30 percent in late-onset forms. Diagnosis is more challenging in females who may express normal residual enzyme activity. Other plasmatic biomarkers, such as lyso-globotriaosylceramide are interesting, especially in females. In this review, we aimed to summarize main clinical manifestations of Fabry disease to know when to evoke Fabry disease and propose a practical diagnosis algorithm to know how to diagnose.
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Affiliation(s)
- Martin Michaud
- Department of Internal Medicine, Hopital Joseph Ducuing, Toulouse, France; Competence Center for Lysosomal Storage Diseases, Hopital Joseph Ducuing, Toulouse, France.
| | - Wladimir Mauhin
- Internal Medicine and Rheumatology Department, Diaconesses-Croix Saint Simon Hospital Group, Paris, France; Referral Center for Lysosomal Diseases, site Avron, Paris, France
| | - Nadia Belmatoug
- Department of Internal Medicine, University Hospital Paris Nord Val de Seine, Assistance Publique-Hôpitaux de Paris, Clichy, France; Referral Center for Lysosomal Diseases, University Hospital Paris Nord Val de Seine, Assistance Publique-Hôpitaux de Paris, Clichy, France
| | - Roselyne Garnotel
- Biochemistry Laboratory, American Memorial Hospital Reims, Reims, France
| | - Naiya Bedreddine
- Association des patients de la maladie de Fabry, Marsannay La Cote, France
| | - Florian Catros
- Department of Internal Medicine, Hopital Joseph Ducuing, Toulouse, France; Competence Center for Lysosomal Storage Diseases, Hopital Joseph Ducuing, Toulouse, France
| | - Sophie Ancellin
- Department of Internal Medicine, Hopital Joseph Ducuing, Toulouse, France; Competence Center for Lysosomal Storage Diseases, Hopital Joseph Ducuing, Toulouse, France
| | - Olivier Lidove
- Internal Medicine and Rheumatology Department, Diaconesses-Croix Saint Simon Hospital Group, Paris, France; Referral Center for Lysosomal Diseases, site Avron, Paris, France
| | - Francis Gaches
- Department of Internal Medicine, Hopital Joseph Ducuing, Toulouse, France; Competence Center for Lysosomal Storage Diseases, Hopital Joseph Ducuing, Toulouse, France
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168
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Sezer O, Ceylaner S. Genetic Management Algorithm in High-Risk Fabry Disease Cases; Especially in Female Indexes with Mutations. Endocr Metab Immune Disord Drug Targets 2020; 21:324-337. [PMID: 32640971 DOI: 10.2174/1871530320666200708135826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 05/15/2020] [Accepted: 05/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Fabry Disease (FD, OMIM#301500) is a progressive, life-threatening, multisystemic, rare lysosomal storage disease. Today, approximately 1000 mutations are recorded in the Human Gene Mutation Database (www.hgmd.org) for GLA. Among the identified mutations, genetic variants of unknown significance (GVUS) and novel mutations cause problems in terms of diagnosis and treatment approach. METHODS In our study, 510 high-risk patients were enrolled. 229 out of 510 were Male (45%) (Mean age was 40.8 ±15.0) and 281 of were Female (55%) (Mean age was 39, 7±15.5). The definite diagnosis of the FD was confirmed by GLA gene sequence analysis. GLA mutation was found in 15 cases (3.4%). Family members of the relevant indexes were included in the screening programs according to the X-linked inheritance pattern. And then we conducted family screening on 74 family members of 15 index cases. Of those 74 cases, 39 had mutations (53%). In males, α-GalA activity and in both gender Lyso-Gb3 levels were measured and multisystem evaluation was performed in all cases with the mutation. RESULTS We found six different familial mutation types; two of them pathogenic; p.D170N (1), p.P205S (13), one of them GVUS; p.Q330R (1), three of them likely benign; p.D313Y (12), p.S126G (25), c.-30G>A (2) mutations were detected. CONCLUSION The purpose of this retrospective study is to approach Fabry disease on a genetic basis and to improve its management and to draw attention to the importance of early diagnosis. We also aimed to evaluate the appropriate algorithms to determine whether the mutation is the FD-causing mutation or not.
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Affiliation(s)
- Ozlem Sezer
- Department of Medical Genetics, Samsun Training and Research Hospital, Samsun, Turkey
| | - Serdar Ceylaner
- Department of Medical Genetics, Intergen Genetic Centre, Ankara, Turkey
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Hewavitharana H, Jasinge E, Abeysekera H, Wanigasinghe J. Cornea Verticillata in classical Fabry disease, first from Sri Lanka: a case report. BMC Pediatr 2020; 20:338. [PMID: 32641113 PMCID: PMC7341576 DOI: 10.1186/s12887-020-02237-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/02/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Fabry disease is a rare inborn error of metabolism with profound clinical consequences if untreated. It is caused by the deficiency of α galactosidase A enzyme and is the only lysosomal storage disorder with an X linked inheritance. Confirmation requires genetic analysis of Galactosidase Alpha (GLA) Gene, which is often a challenge in resource-poor settings. Despite these technological limitations, specific clinical features in this condition can establish the diagnosis. CASE PRESENTATION We report on a 13-year old male who presented with an afebrile convulsion with a background history of chronic burning sensation of hands and feet and anhidrosis for 2 years duration with a similar history of episodic acroparesthesia in the other male sibling. The early clinical diagnosis was based on the history and detection of Cornea Verticillata on eye examination. Biochemical confirmation was established with detection of low α galactosidase A enzyme levels and a missense mutation of the Galactosidase Alpha (GLA) Gene (c.136C > T) established the genetic confirmation. CONCLUSION This is the first case of Fabry disease reported in Sri Lanka. Awareness of specific clinical features aided clinical diagnosis long before access to genetic confirmation was available.
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Affiliation(s)
- Hasani Hewavitharana
- Professorial Paediatric Unit, Lady Ridgeway Hospital for Children, Colombo 08, Sri Lanka
| | - Eresha Jasinge
- Department of Chemical Pathology, Lady Ridgeway Hospital for Children, Colombo 08, Sri Lanka
| | - Hiranya Abeysekera
- Department of Paediatric Ophthalmology, Lady Ridgeway Hospital for Children, Colombo 08, Sri Lanka
| | - Jithangi Wanigasinghe
- Department of Paediatrics, Faculty of Medicine, University of Colombo, Colombo 8, Sri Lanka
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170
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Körver S, Longo MGF, Lima MR, Hollak CEM, El Sayed M, van Schaik IN, Vedolin L, Dijkgraaf MGW, Langeveld M. Determinants of cerebral radiological progression in Fabry disease. J Neurol Neurosurg Psychiatry 2020; 91:756-763. [PMID: 32317398 DOI: 10.1136/jnnp-2019-322268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIM It is unclear which patients with Fabry disease (FD) are at risk for progression of white matter lesions (WMLs) and brain infarctions and whether enzyme replacement therapy (ERT) changes this risk. The aim of this study was to determine the effect of ERT and clinical characteristics on progression of WMLs and infarctions on MRI in patients with FD. METHODS MRIs were assessed for WMLs (Fazekas scale), infarctions and basilar artery diameter (BAD). The effect of clinical characteristics (renal and cardiac involvement, cardiovascular risk factors, cardiac complications, BAD) and ERT on WML and infarction progression was evaluated using mixed models. RESULTS One hundred forty-nine patients were included (median age: 39 years, 38% men, 79% classical phenotype). Median follow-up time was 7 years (range: 0-13 years) with a median number of MRIs per patient of 5 (range: 1-14), resulting in a total of 852 scans. Variables independently associated with WML and infarction progression were age, male sex and a classical phenotype. Progression of WMLs and infarctions was not affected by adding ERT to the model, neither for the whole group, nor for early treated patients. Progression was highly variable among patients which could not be explained by other known variables such as hypertension, cholesterol, atrial fibrillation and changes in kidney function, left ventricular mass or BAD. CONCLUSION Progression of WMLs and cerebral infarctions in FD is mainly related to age, sex and phenotype. Additional effects of established cardiovascular risk factors, organ involvement and treatment with ERT are probably small to negligible.
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Affiliation(s)
- Simon Körver
- Endocrinology and Metabolism, Amsterdam UMC-Locatie AMC, Amsterdam, The Netherlands
| | - Maria G F Longo
- Department of Radiology, Massachusetts General Hospital Institute for Patient Care, Boston, Massachusetts, USA
| | - Marjana R Lima
- Department of Radiology, Hospital Moinhos de Vento, Porto Alegre, RS, Brazil
| | - Carla E M Hollak
- Endocrinology and Metabolism, Amsterdam UMC-Locatie AMC, Amsterdam, The Netherlands
| | - Mohamed El Sayed
- Endocrinology and Metabolism, Amsterdam UMC-Locatie AMC, Amsterdam, The Netherlands
| | - Ivo N van Schaik
- Department of Neurology, Amsterdam UMC-Locatie AMC, Amsterdam, North Holland, The Netherlands.,Spaarne Gasthuis, Haarlem, Noord-Holland, The Netherlands
| | - Leonardo Vedolin
- Imaging Director, Diagnosticos da America SA, Barueri, São Paulo, Brazil
| | - Marcel G W Dijkgraaf
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC-Locatie AMC, Amsterdam, North Holland, The Netherlands
| | - Mirjam Langeveld
- Endocrinology and Metabolism, Amsterdam UMC-Locatie AMC, Amsterdam, The Netherlands
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Prencipe M, Posarelli C, Figus M, Gabbriellini G. Fabry disease due to G171S GLA mutation: An atypical small nerve fiber sparing variant? Eur J Ophthalmol 2020; 31:NP53-NP57. [PMID: 32586128 DOI: 10.1177/1120672120939496] [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: 11/16/2022]
Abstract
INTRODUCTION To describe the ocular manifestations and in vivo confocal microscopic findings in a patient carrying the recently described hemizygous G171S GLA gene mutation. CASE DESCRIPTION A 63-year-old Albanian male patient was evaluated for cataract surgery. Anamnesis showed pacemaker implantation in left ventricular hypertrophy, chronic kidney disease, family history for kidney transplantation, and late onset of sporadic acroparesthesias. Bilateral cornea verticillata, and increased tortuosity in conjunctival and retinal vessels were present. In vivo confocal microscopy revealed clusters of hyper-reflective corneal epithelial cells centripetally extending from the limbus. Interestingly, the nerve fiber number, density, and length in the corneal sub-basal nerve plexus were preserved. Alpha-galactosidase A activity was almost absent and hemizygous c.511G>A mutation (G171S - p.Gly171Ser) of the GLA gene was identified. The patient was referred for initiation of enzyme replacement therapy, and genetic counseling was recommended for at-risk family members. CONCLUSION This is the third reported case of Fabry disease due to GLA G171S mutation. All patients are of Albanian descent. Cornea verticillata and vascular anomalies remain common ocular manifestations, as well as cardiac and renal involvement. Confirming its pathogenicity, this mutation results in a "classic" Fabry disease phenotype, but it seems to be associated with a relative small nerve fiber sparing that may delay a correct diagnosis. The diagnosis of Fabry disease still remains challenging due to its clinical heterogeneity, but a thorough ophthalmological examination can promote early detection and, consequently, early initiation of enzyme replacement therapy.
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Affiliation(s)
- Matteo Prencipe
- Department of Surgical, Medical, Molecular Pathology and of Critical Area, University of Pisa, Pisa, Italy
| | - Chiara Posarelli
- Department of Surgical, Medical, Molecular Pathology and of Critical Area, University of Pisa, Pisa, Italy
| | - Michele Figus
- Department of Surgical, Medical, Molecular Pathology and of Critical Area, University of Pisa, Pisa, Italy
| | - Giovanna Gabbriellini
- Department of Surgical, Medical, Molecular Pathology and of Critical Area, University of Pisa, Pisa, Italy
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172
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Histological changes of a kidney in a recipient who received an allograft from a patient with Fabry disease. J Nephrol 2020; 33:657-659. [PMID: 32535832 DOI: 10.1007/s40620-020-00782-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/08/2020] [Indexed: 10/24/2022]
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Kidney Transplant in Fabry Disease: A Revision of the Literature. ACTA ACUST UNITED AC 2020; 56:medicina56060284. [PMID: 32532136 PMCID: PMC7353860 DOI: 10.3390/medicina56060284] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/03/2020] [Accepted: 06/08/2020] [Indexed: 02/07/2023]
Abstract
Fabry disease is classified as a rare X-linked disease caused by a complete or partial defect of enzyme alpha-galactosidase, due to GLA gene mutations. This disorder leads to intracellular globotriaosylceramide (Gb3) deposition associated with increased Gb3 plasma levels. Most of the symptoms of the disease, involving kidneys, heart and nervous system, result from this progressive Gb3 deposition. The incidence is estimated in 1/50,000 to 1/117,000 in males. Fabry nephropathy begins with microalbuminuria and/or proteinuria, which, in the classic form, appear from childhood. Thus, a progressive decline of renal function can start at a young age, and evolve to kidney failure, requiring dialysis or renal transplantation. Enzyme replacement therapy (ERT), available since 2001 for Fabry disease, has been increasingly introduced into the clinical practice, with overall positive short-term and long-term effects in terms of ventricular hypertrophy and renal function. Kidney transplantation represents a relevant therapeutic option for Fabry nephropathy management, for patients reaching end-stage renal disease, but little is known about long-term outcomes, overall patient survival or the possible role of ERT after transplant. The purpose of this review is to analyze the literature on every aspect related to kidney transplantation in patients with Fabry nephropathy: from the analysis of transplant outcomes, to the likelihood of disease recurrence, up to the effects of ERT and its possible interference with immunosuppression.
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Parini R, Pintos-Morell G, Hennermann JB, Hsu TR, Karabul N, Kalampoki V, Gurevich A, Ramaswami U. Analysis of Renal and Cardiac Outcomes in Male Participants in the Fabry Outcome Survey Starting Agalsidase Alfa Enzyme Replacement Therapy Before and After 18 Years of Age. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2149-2158. [PMID: 32581513 PMCID: PMC7276893 DOI: 10.2147/dddt.s249433] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/28/2020] [Indexed: 11/24/2022]
Abstract
Purpose To determine the impact of initiating enzyme replacement therapy (ERT) with agalsidase alfa early in the course of Fabry disease, we evaluated renal and cardiac outcomes for ≤10 years after ERT initiation in males from the Fabry Outcome Survey (FOS). Patients and Methods Male patients from FOS were stratified into three cohorts by age at ERT initiation: ≤18 years (cohort 1), >18 and ≤30 years (cohort 2), and >30 years (cohort 3). Analysis included age at symptom onset, diagnosis, and ERT initiation; ERT duration; FOS-Mainz Severity Score Index (FOS-MSSI); estimated glomerular filtration rate (eGFR); proteinuria level; and left ventricular mass indexed to height (LVMI). Mixed-effect models estimated renal and cardiac outcomes during follow-up between and within cohorts. Findings The analysis included 560 male patients: 151 (27.0%) in cohort 1, 155 (27.7%) in cohort 2, and 254 (45.4%) in cohort 3. Mean±SD duration of ERT for cohorts 1, 2, and 3 was 6.3±4.3, 8.6±4.9, and 7.9±4.9 years, respectively. Mean±SD baseline FOS-MSSI scores increased with age from 9.8±7.2 in cohort 1 to 24.7±11.4 in cohort 3. Cohort 3 showed the lowest baseline mean±SD value for eGFR (87.1±29.0 mL/min/1.73m2) and highest baseline mean±SD values for proteinuria (801.9±952.6 mg/day) and LVMI (56.7±16.0 g/m2.7) among the three cohorts. Evaluation of mean annual rates of change in eGFR, proteinuria, and LVMI revealed no significant differences in any parameter for cohort 1. For cohort 2, proteinuria and LVMI remained stable, whereas eGFR significantly deteriorated annually (–1.12 mL/min/1.73m2; P<0.001). Cohort 3 demonstrated significant annual deteriorations in eGFR (–2.60 mL/min/1.73m2; P<0.001), proteinuria (+34.10 mg/day; P<0.001), and LVMI (+0.59 g/m2.7; P=0.001). Implications Renal and/or cardiac disease progression appears attenuated in patients starting ERT in childhood or early adulthood versus patients starting ERT in later adulthood. These findings support early ERT initiation in Fabry disease. ClinicalTrials.gov identifier: NCT03289065.
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Affiliation(s)
- Rossella Parini
- Rare Metabolic Diseases Unit, MBBM Foundation, San Gerardo Hospital, Reference Centre for Hereditary Metabolic Disorders (MetabERN), Monza, Italy.,TIGET Institute, IRCCS San Raffaele Hospital, Milan, Italy
| | - Guillem Pintos-Morell
- Division of Rare Diseases, Reference Centre for Hereditary Metabolic Disorders (MetabERN), University Hospital Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain
| | - Julia B Hennermann
- Villa Metabolica, Department of Pediatric and Adolescent Medicine, University Medical Center, Mainz, Germany
| | - Ting-Rong Hsu
- Department of Pediatrics, Taipei Veterans General Hospital and Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Nesrin Karabul
- Department of Neuropaediatric and Inborn Metabolic Disorders (Metabolicum Ruhr), University Children's Hospital and Centre for Rare Diseases, Ruhr University Bochum, Bochum, Germany
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Mauhin W, Benveniste O, Amelin D, Montagner C, Lamari F, Caillaud C, Douillard C, Dussol B, Leguy-Seguin V, D'Halluin P, Noel E, Zenone T, Matignon M, Maillot F, Ly KH, Besson G, Willems M, Labombarda F, Masseau A, Lavigne C, Lacombe D, Maillard H, Lidove O. Cornea verticillata and acroparesthesia efficiently discriminate clusters of severity in Fabry disease. PLoS One 2020; 15:e0233460. [PMID: 32442237 PMCID: PMC7244174 DOI: 10.1371/journal.pone.0233460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/05/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUD Fabry disease (OMIM #301 500), the most prevalent lysosomal storage disease, is caused by enzymatic defects in alpha-galactosidase A (GLA gene; Xq22.1). Fabry disease has historically been characterized by progressive renal failure, early stroke and hypertrophic cardiomyopathy, with a diminished life expectancy. A nonclassical phenotype has been described with an almost exclusive cardiac involvement. Specific therapies with enzyme substitution or chaperone molecules are now available depending on the mutation carried. Numerous clinical and fundamental studies have been conducted without stratifying patients by phenotype or severity, despite different prognoses and possible different pathophysiologies. We aimed to identify a simple and clinically relevant way to classify and stratify patients according to their disease severity. METHODS Based on data from the French Fabry Biobank and Registry (FFABRY; n = 104; 54 males), we applied unsupervised multivariate statistics to determine clusters of patients and identify clinical criteria that would allow an effective classification of adult patients. Thanks to these criteria and empirical clinical considerations we secondly elaborate a new score that allow the severity stratification of patients. RESULTS We observed that the absence of acroparesthesia or cornea verticillata is sufficient to classify males as having the nonclassical phenotype. We did not identify criteria that significantly cluster female patients. The classical phenotype was associated with a higher risk of severe renal (HR = 35.1; p <10-3) and cardiac events (HR = 4.8; p = 0.008) and a trend toward a higher risk of severe neurological events (HR = 7.7; p = 0.08) compared to nonclassical males. Our simple, rapid and clinically-relevant FFABRY score gave concordant results with the validated MSSI. CONCLUSION Acroparesthesia and cornea verticillata are simple clinical criteria that efficiently stratify Fabry patients, defining 3 different groups: females and males with nonclassical and classical phenotypes of significantly different severity. The FFABRY score allows severity stratification of Fabry patients.
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Affiliation(s)
- Wladimir Mauhin
- Internal Medicine Department, Reference Center for Lysosomal Storage Disorders, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France
- UMRS 974, INSERM, Sorbonne Université, Paris, France
| | - Olivier Benveniste
- UMRS 974, INSERM, Sorbonne Université, Paris, France
- Internal Medicine Department, Pitié Salpêtrière University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Damien Amelin
- UMRS 974, INSERM, Sorbonne Université, Paris, France
| | - Clémence Montagner
- Internal Medicine Department, Reference Center for Lysosomal Storage Disorders, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France
| | - Foudil Lamari
- Metabolic Biochemistry Department, Pitié Salpêtrière University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
- Groupe de Recherche Clinique 13 Neurométabolisme, Sorbonne Université, Paris, France
| | - Catherine Caillaud
- Biochemistry, Metabolomic and Proteomic Department, Necker Enfants Malades University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
- UMRS 1151, INSERM, Institute Necker Enfants Malades, Paris Descartes University, Paris, France
| | - Claire Douillard
- Reference Center for Inborn Metabolic Diseases, Jeanne de Flandres Hospital, Lille, France
| | - Bertrand Dussol
- Nephrology Department, Assistance Publique Hôpitaux de Marseille, Marseille, France
- Centre d’Investigation Clinique 1409, INSERM, Aix Marseille Université, Marseille, France
| | - Vanessa Leguy-Seguin
- Internal Medicine and Clinical Immunology Department, Francois Mitterrand Hospital, Dijon, France
| | - Pauline D'Halluin
- Nephrology and Haemodialysis Department, Centre Hospitalier Côte Basque, Bayonne, France
| | - Esther Noel
- Internal Medicine Department, Strasbourg University Hospital, Strasbourg, France
| | - Thierry Zenone
- Internal Medicine Department, Valence Hospital, Valence, France
| | - Marie Matignon
- Nephrology and Renal Transplantation Department, Institut Francilien de Recherche en Néphrologie et Transplantation (IFRNT), Henri-Mondor/Albert-Chenevier University Hospital, Assistance Publique Hôpitaux de Paris, Créteil, France
- UMRS 955, Institut Mondor de Recherche Biomédicale, INSERM, University of Paris-Est-Créteil, Créteil, France
| | - François Maillot
- Internal Medicine Department, Tours University Hospital, Tours, France
- UMRS 1253, University of Tours, Tours, France
| | - Kim-Heang Ly
- Internal Medicine Department, Dupuytren University Hospital, Limoges, France
| | - Gérard Besson
- Neurology Department, Grenoble University Hospital, Grenoble, France
| | - Marjolaine Willems
- Medical Genetics and Rare Diseases Department, Montpellier University Hospital, Montpellier, France
| | | | - Agathe Masseau
- Internal Medicine Department, Hôtel-Dieu University Hospital, Nantes, France
| | - Christian Lavigne
- Internal Medicine and Vascular Diseases Department, Angers University Hospital, Angers, France
| | - Didier Lacombe
- Medical Genetics Department, Bordeaux University Hospital, Bordeaux, France
- INSERM U1211, Bordeaux University, Bordeaux, France
| | - Hélène Maillard
- Internal Medicine Department, Huriez Hospital, University of Lille, Lille, France
| | - Olivier Lidove
- Internal Medicine Department, Reference Center for Lysosomal Storage Disorders, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France
- UMRS 974, INSERM, Sorbonne Université, Paris, France
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Ortiz A, Kanters S, Hamed A, DasMahapatra P, Poggio E, Maski M, Aguiar M, Ponce E, Jansen JP, Ayers D, Goldgrub R, Desnick RJ. Agalsidase beta treatment slows estimated glomerular filtration rate loss in classic Fabry disease patients: results from an individual patient data meta-analysis. Clin Kidney J 2020; 14:1136-1146. [PMID: 33841859 PMCID: PMC8023189 DOI: 10.1093/ckj/sfaa065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 03/26/2020] [Indexed: 01/07/2023] Open
Abstract
Background Fabry disease is a rare, X-linked genetic disorder that, if untreated in patients with the Classic phenotype, often progresses to end-stage kidney disease. This meta-analysis determined the effect of agalsidase beta on loss of estimated glomerular filtration rate (eGFR) in the Classic phenotype using an expansive evidence base of individual patient-level data. Methods The evidence base included four Sanofi-Genzyme studies and six studies from a systematic literature review. These were restricted to Classic Fabry patients meeting the eligibility criteria from Phases III and IV agalsidase beta trials, including 315 patients (161 treated). Linear regression was first used to model annual change in eGFR for each patient and the resulting annualized eGFR slopes were modelled with treatment and covariates using quantile regression. These results were then used to estimate median annualized eGFR change in agalsidase beta treated versus untreated groups. Results Imbalances across treatment groups were found in baseline age, sex and proteinuria, but not in the use of renin–angiotensin system blockers. The adjusted model suggests that treated (agalsidase beta) patients experienced a slower median eGFR decrease [2.46 mL/min/1.73 m2/year slower; 95% confidence interval (CI) 0.63–4.29; P = 0.0087] than comparable untreated patients. The median eGFR decrease was 2.64 mL/min/1.73 m2/year slower (95% CI 0.53–4.78; P = 0.0141) in treated Classic males. Conclusions Using an expansive evidence base and robust modelling approach, these data indicate that agalsidase beta-treated patients with the Classic phenotype conserve their renal function better than untreated patients.
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Affiliation(s)
- Alberto Ortiz
- Unidad de Diálisis, IIS-Fundación Jiménez Díaz, School of Medicine, UAM, IRSIN and REDINREN, Madrid, Spain
| | - Steve Kanters
- Evidence Synthesis and Decision Modeling, Precision HEOR, Vancouver, BC, Canada
| | - Alaa Hamed
- Sanofi Genzyme Health Economics and Value Assessment, Genzyme, Cambridge, MA, USA
| | | | | | - Manish Maski
- Sanofi Genzyme Medical Affairs, Genzyme, Cambridge, MA, USA
| | - Mario Aguiar
- Sanofi Genzyme Medical Affairs, Genzyme, Cambridge, MA, USA
| | - Elvira Ponce
- Sanofi Genzyme Medical Affairs, Genzyme, Cambridge, MA, USA
| | - Jeroen P Jansen
- Evidence Synthesis and Decision Modeling, Precision HEOR, Oakland, CA, USA
| | - Dieter Ayers
- Evidence Synthesis and Decision Modeling, Precision HEOR, Vancouver, BC, Canada
| | - Rachel Goldgrub
- Evidence Synthesis and Decision Modeling, Precision HEOR, Vancouver, BC, Canada
| | - Robert J Desnick
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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A Proteomics-Based Analysis Reveals Predictive Biological Patterns in Fabry Disease. J Clin Med 2020; 9:jcm9051325. [PMID: 32370284 PMCID: PMC7290805 DOI: 10.3390/jcm9051325] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Fabry disease (FD) is an X-linked progressive lysosomal disease (LD) due to glycosphingolipid metabolism impairment. Currently, plasmatic globotriaosylsphingosine (LysoGb3) is used for disease diagnosis and monitoring. However, this biomarker is inconstantly increased in mild forms and in some female patients. Materials and Methods: We applied a targeted proteomic approach to explore disease-related biological patterns that might explain the disease pathophysiology. Forty proteins, involved mainly in inflammatory and angiogenesis processes, were assessed in 69 plasma samples retrieved from the French Fabry cohort (FFABRY) and from 83 healthy subjects. For predictive performance assessment, we also included other LD samples (Gaucher, Pompe and Niemann Pick C). Results: The study yielded four discriminant proteins that include three angiogenesis proteins (fibroblast growth factor 2 (FGF2), vascular endothelial growth factor A (VEGFA), vascular endothelial growth factor C (VEGFC)) and one cytokine interleukin 7 (IL-7). A clear elevation of FGF2 and IL-7 concentrations was observed in FD compared to other LD samples. No correlation was observed between these proteins and globotriaosylsphingosine (LysoGb3). A significant correlation exists between IL-7 and residual enzyme activity in a non-classical phenotype. This highlights the orthogonal biological information yielded by these proteins that might help in stratifying Fabry patients. Conclusion: This work highlights the potential of using proteomics approaches in exploring FD and enhancing FD diagnosis and therapeutic monitoring performances.
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178
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Feriozzi S, Hughes DA. New drugs for the treatment of Anderson-Fabry disease. J Nephrol 2020; 34:221-230. [PMID: 32193835 DOI: 10.1007/s40620-020-00721-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 03/12/2020] [Indexed: 12/22/2022]
Abstract
Enzyme replacement therapy (ERT) of the Anderson-Fabry disease (AFD) has changed the outcome of patients. However, ERT has some limitations: a restricted volume of distribution, requirement for intravenous access, and stimulation of the production of anti-drug antibodies. Studies of new drugs aiming to improve the clinical effectiveness and convenience of therapy have been reported. Migalastat, a pharmacological chaperone, increases available enzymate activity in patients with mutations amenable to the therapy, is now available for clinical practice. It is orally administered, and while clinical trial results are promising, long term real world follow up is awaited. PEGylated enzyme has a longer half-life and potentially reduced antigenicity, compared with standard preparations; investigation of whether a longer dosing interval is viable is under way. Moss-derived enzyme has a higher affinity for mannose receptors, and appears to have access to renal tissue. Substrate reduction therapy is based on reducing the catabolism processes of the glycosphingolipids, and is currently under investigation as monotherapy. Gene therapy has now been initiated in clinical trail of in vivo and ex vivo technologies with early results are emerging. ERT represents a certain milestone of therapy for AFD with Migalastat now a newly available option. Other agents in clinical trial prevent further potential opportunities to improve outcomes in AFD.
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Affiliation(s)
- Sandro Feriozzi
- Nephrology and Dialysis Unit, Belcolle Hospital, Via Sammartinese snc, 01100, Viterbo, Italy.
| | - Derralynn A Hughes
- Lysosomal Storage Disorders Unit, Royal Free London NHS Foundation Trust and University College London, London, UK
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179
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Germain DP, Oliveira JP, Bichet DG, Yoo HW, Hopkin RJ, Lemay R, Politei J, Wanner C, Wilcox WR, Warnock DG. Use of a rare disease registry for establishing phenotypic classification of previously unassigned GLA variants: a consensus classification system by a multispecialty Fabry disease genotype-phenotype workgroup. J Med Genet 2020; 57:542-551. [PMID: 32161151 PMCID: PMC7418626 DOI: 10.1136/jmedgenet-2019-106467] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/13/2019] [Accepted: 01/03/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Fabry disease (α-galactosidase deficiency) is an X-linked genetic disease caused by a variety of pathogenic GLA variants. The phenotypic heterogeneity is considerable, with two major forms, classic and later-onset disease, but adjudication of clinical phenotype is currently lacking for many variants. We aimed to determine consensus phenotypic classification for previously unclassified GLA variants from the GLA-specific fabry-database.org database. METHODS A Fabry disease genotype-phenotype workgroup developed a five-stage iterative system based on expert clinical assessment, published literature and clinical evidence of pathogenicity using a 2-point scoring system based on clinical hallmarks of classic disease. Kaplan-Meier (KM) analysis of severe clinical event-free survival was used as final validation. Results were compared with those from web-based disease databases and in silico pathogenicity prediction programmes. RESULTS Final consensus on classifications of 'pathogenic' was achieved for 32 of 33 GLA variants (26 'classic' phenotype, 171 males; 6 'later-onset' phenotype, 57 males). One variant remained of uncertain significance. KM curves were similar for the known fabry-database.org database phenotypes and when workgroup consensus classifications were added, and the curves retained the same separation between 'classic' and 'later-onset' phenotypes. CONCLUSION The iterative system implemented by a Fabry disease genotype-phenotype workgroup achieved phenotypic classifications for variants that were previously unclassified. Clinical pathogenicity associated with a particular GLA variant defined in affected males appears to have predictive value and also generally correlates with risk for affected females. The newly established classifications can be of benefit to the clinical care of Fabry patients harbouring these variants.
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Affiliation(s)
- Dominique P Germain
- French Referral Centre for Fabry disease, Division of Medical Genetics, University of Versailles, Paris-Saclay University, Montigny, France
| | - João Paulo Oliveira
- Department of Genetics, São João Hospital Centre & Faculty of Medicine, University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal
| | - Daniel G Bichet
- Nephrology Service, Research Center, Hôpital du Sacré-Coeur de Montréal, Montreal, Québec, Canada.,Departments of Medicine, Pharmacology and Physiology, University of Montreal, Montreal, Québec, Canada
| | - Han-Wook Yoo
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, South Korea
| | - Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Juan Politei
- Department of Neurology, Fundación Para el Estudio de Enfermedades Neurómetabolicas (FESEN), Buenos Aires, Argentina
| | - Christoph Wanner
- Division of Nephrology, University Clinic, University of Würzburg, Würzburg, Germany
| | - William R Wilcox
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - David G Warnock
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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180
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Affiliation(s)
- Einar Svarstad
- Department of Medicine, Haukeland University Hospital, Bergen, Norway; and .,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Hans Peter Marti
- Department of Medicine, Haukeland University Hospital, Bergen, Norway; and.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
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181
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Azevedo O, Gago MF, Miltenberger-Miltenyi G, Robles AR, Costa MA, Pereira O, Vide AT, Castelo Branco G, Simões S, Guimarães MJ, Salgado A, Sousa N, Cunha D. Natural history of the late-onset phenotype of Fabry disease due to the p.F113L mutation. Mol Genet Metab Rep 2020; 22:100565. [PMID: 32099817 PMCID: PMC7026617 DOI: 10.1016/j.ymgmr.2020.100565] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The common GLA gene mutation p.F113L causes late-onset phenotype of Fabry disease (FD) with predominant cardiac manifestations. A founder effect of FD due to this mutation was found in the Portuguese region of Guimarães. Our study aims to deepen the knowledge on the natural history of this late-onset variant. METHODS 203 consecutive adult Fabry patients with p.F113L mutation (79 males; mean age 46 ± 18 years), from this region, were submitted at baseline to a predefined diagnostic protocol. The occurrence of FD manifestations was analyzed in each decade of age in both genders. RESULTS In males, left ventricular hypertrophy (40.2%) and late gadolinium enhancement (21.4%) arose over 30 years; heart failure (HF) (21.9%), ventricular tachycardia (8.9%) and conduction disorders over 40 years; and bifascicular (13.1%) and complete atrioventricular blocks (5.9%) beyond 50 years of age. Cardiac manifestations occurred more commonly and 1-2 decades earlier in males; their frequency increased with age. Septum and posterior wall thickness, LV mass, QRS interval duration and pro-BNP levels increased with age in both genders. Mean survival free from HF (64 ± 1 vs. 76 ± 2 years) and pacemaker (71 ± 2 vs. 86 ± 1 years) was higher in females (p < .001). Albuminuria A2/A3 (33.7%), brain white matter lesions (50.3%) and sensorineural deafness (44.7%) arose before 30 years of age in both genders, increasing with age. Renal failure and stroke were rare. Lysosomal inclusions were demonstrated in podocytes of patients with proteinuria. CONCLUSION This study improves the knowledge on natural history of late-onset variants of FD, carrying major impact on clinical decisions and guidelines.
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Affiliation(s)
- Olga Azevedo
- Cardiology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Miguel F. Gago
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Neurology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Gabriel Miltenberger-Miltenyi
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Genetics Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Ana Raquel Robles
- Otorhinolaryngology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Maria Antónia Costa
- Ophthalmology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Olga Pereira
- Dermatology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Ana Teresa Vide
- Neurorradiology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Gonçalo Castelo Branco
- Internal Medicine Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Sónia Simões
- Psychiatry Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Maria José Guimarães
- Pneumology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Ana Salgado
- Radiology Department, Reference Center on Lysosomal Storage Disorders, Hospital Senhora da Oliveira, Guimarães, Portugal, member of the European Reference Network on Hereditary Metabolic Disorders (MetabERN)
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Damião Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Wanner C, Feldt-Rasmussen U, Jovanovic A, Linhart A, Yang M, Ponce E, Brand E, Germain DP, Hughes DA, Jefferies JL, Martins AM, Nowak A, Vujkovac B, Weidemann F, West ML, Ortiz A. Cardiomyopathy and kidney function in agalsidase beta-treated female Fabry patients: a pre-treatment vs. post-treatment analysis. ESC Heart Fail 2020; 7:825-834. [PMID: 32100468 PMCID: PMC7261571 DOI: 10.1002/ehf2.12647] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/20/2019] [Accepted: 01/27/2020] [Indexed: 11/07/2022] Open
Abstract
AIMS Long-term treatment effect studies in large female Fabry patient groups are challenging to design because of phenotype heterogeneity and lack of appropriate comparison groups, and have not been reported. We compared long-term cardiomyopathy and kidney function outcomes after agalsidase beta treatment with preceding treatment-naive outcomes. METHODS AND RESULTS Self-controlled pretreatment and post-treatment comparison (piecewise mixed linear modelling) included Fabry female patients ≥18 years at treatment initiation who received agalsidase beta (0.9-1.1 mg/kg every other week) for ≥2 years, with ≥2 pretreatment and ≥2 post-treatment outcome measurements during 10-year follow-up. Left ventricular posterior wall thickness (LVPWT)/interventricular septal thickness (IVST) and estimated glomerular filtration rate (eGFR, Chronic Kidney Disease Epidemiology Collaboration creatinine equation) analyses included 42 and 86 patients, respectively, aged 50.0 and 46.3 years at treatment initiation, respectively. LVPWT and IVST increased pretreatment (follow-up 3.5 years) but stabilized during 3.6 years of treatment (LVPWT: n = 38, slope difference [95% confidence interval (CI)] = -0.41 [-0.68, -0.15] mm/year, Ppre-post difference <0.01; IVST: n = 38, slope difference = -0.32 [-0.67, 0.02] mm/year, Ppre-post difference = 0.07). These findings were not modified by renal involvement or antiproteinuric agent use. Compared with the treatment-naive period (follow-up 3.6 years), eGFR decline remained modest and stabilized within normal ranges during 4.1 years of treatment (slope difference, 95% CI: -0.13 [-1.15, 0.89] mL/min/1.73m2 /year, Ppre-post difference = 0.80). CONCLUSIONS Cardiac hypertrophy, progressing during pretreatment follow-up, appeared to stabilize during sustained agalsidase beta treatment. eGFR decline remained within normal ranges. This suggests that treatment may prevent further Fabry-related progression of cardiomyopathy in female patients and maintain normal kidney function.
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Affiliation(s)
- Christoph Wanner
- Department of Medicine, Division of Nephrology, University Hospital Würzburg, Würzburg, Germany
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ana Jovanovic
- The Mark Holland Unit, Department of Endocrinology and Metabolic Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - Aleš Linhart
- 2nd Department of Medicine, Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Meng Yang
- Epidemiology & Biostatistics, Sanofi Genzyme, Cambridge, MA, USA
| | - Elvira Ponce
- Global Medical Affairs Rare Diseases, Sanofi Genzyme, Cambridge, MA, USA
| | - Eva Brand
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Münster, Münster, Germany
| | - Dominique P Germain
- French Referral Center for Fabry Disease, Division of Medical Genetics and INSERM U1179, University of Versailles, Paris-Saclay University, Montigny, France
| | - Derralynn A Hughes
- Lysosomal Storage Disorder Unit, Royal Free London NHS Foundation Trust and, University College London, London, UK
| | - John L Jefferies
- Department of Medicine, Division of Cardiovascular Diseases, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ana Maria Martins
- Department of Paediatrics, Federal University of São Paulo, São Paulo, Brazil
| | - Albina Nowak
- Department of Internal Medicine, University Hospital of Zürich, University of Zürich, Zürich, Switzerland
| | - Bojan Vujkovac
- Department of Internal Medicine, General Hospital Slovenj Gradec, Slovenj Gradec, Slovenia
| | - Frank Weidemann
- Medical Clinic I, Klinikum Vest, Knappschaftskrankenhaus, Recklinghausen, Germany
| | - Michael L West
- Department of Medicine, Division of Nephrology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Alberto Ortiz
- Unidad de Dialisis, IIS-Fundación Jiménez Díaz, UAM, IRSIN, REDINREN, Madrid, Spain
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Rozenfeld PA, de Los Angeles Bolla M, Quieto P, Pisani A, Feriozzi S, Neuman P, Bondar C. Pathogenesis of Fabry nephropathy: The pathways leading to fibrosis. Mol Genet Metab 2020; 129:132-141. [PMID: 31718986 DOI: 10.1016/j.ymgme.2019.10.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Kidney is one of the main target organs in Fabry disease, a lysosomal X-linked genetic disorder. Renal involvement is characterized by proteinuria and progressive chronic kidney disease leading to end-stage renal disease. Pathogenic mechanisms in the progression of renal damage in Fabry disease are not thoroughly known yet. The lysosomal Gb3 deposition is the first step of complex pathological pathways resulting in renal sclerosis/fibrosis. Our hypothesis is that Fabry disease associated cellular alterations in tubular cells induce the production of TGF-β1, which mediate transdifferentiation of renal cells into myofibroblasts resulting in fibrosis of renal tissue. OBJECTIVES The aim of this work is to study the mechanisms leading to fibrosis in kidney from human Fabry patients. METHODS Fifteen renal biopsies from naïve Fabry patients were included. Histological and immunohistochemical analysis was carried out. RESULTS Positive staining for TGF-β1 was found in tubular epithelial cells in biopsies from Fabry patients. Apoptosis was determined by active caspase 3 staining in tubular and mesangial glomerular cells. Due to TGF-β1 is the main profibrotic cytokine and induces accumulation of myofibroblasts, we performed a study for its marker α-smooth muscle actin (α-SMA). This study revealed expression of α-SMA on pericytes surrounding peritubular capillaries, smooth muscle cells of blood vessels, mesangial cells and periglomerular zone. TGF-β1 is produced mainly by tubular cells in Fabry kidney biopsies probably inducing cellular trans-differentiation of renal cells into myofibroblasts. A positive staining for a marker of myofibroblasts was present, affirming the presence of those profibrotic cells. CONCLUSIONS These results show for the first time that TGF-β1 is expressed in human renal tissue from Fabry patients, and that this profibrotic cytokine is mainly produced by proximal tubular cells. In addition both, peritubular interstitium and glomeruli, presented cells positive for myofibroblasts markers.
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Affiliation(s)
- Paula Adriana Rozenfeld
- IIFP, Universidad Nacional de La Plata, CONICET, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, 47 y 115 (1900), La Plata, Argentina.
| | | | - Pedro Quieto
- Servicio de Nefrología, Hospital Rodolfo Rossi, Calle 37 N° 193 (1900), La Plata, Argentina
| | - Antonio Pisani
- Chair of Nephrology, Department of Public Health, University Federico II of Naples, Italy
| | - Sandro Feriozzi
- Nephrology and Dialysis Unit, Belcolle Hospital, Viterbo, Italy
| | - Pablo Neuman
- Servicio de Diálisis y Nefrologia, IPENSA, Calle 59 N°434 (1900), La Plata, Argentina
| | - Constanza Bondar
- IIFP, Universidad Nacional de La Plata, CONICET, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, 47 y 115 (1900), La Plata, Argentina
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184
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Körver S, Geurtsen GJ, Hollak CEM, van Schaik IN, Longo MGF, Lima MR, Vedolin L, Dijkgraaf MGW, Langeveld M. Depressive symptoms in Fabry disease: the importance of coping, subjective health perception and pain. Orphanet J Rare Dis 2020; 15:28. [PMID: 31992347 PMCID: PMC6986064 DOI: 10.1186/s13023-020-1307-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/14/2020] [Indexed: 12/20/2022] Open
Abstract
Background Despite the high prevalence of depressive symptoms in Fabry disease (FD), it is unclear which patient characteristics are important in relation to these symptoms. Additionally, the impact of coping styles in relation to depressive symptoms in FD has been unexplored. Determining the impact of different factors relating to depressive symptoms in FD can guide both prevention and treatment of these symptoms. Methods Depressive symptoms (Center for Epidemiologic Studies Depression scale (CESD)) and coping styles (Utrecht Coping List) were assessed in a Dutch FD cohort. Other potentially important variables were identified from FD literature and assessed in this cohort. Relations were evaluated using multiple linear models. Results Potentially important variables in FD literature were: pain, unemployment, health perception, being single, comorbidities and stroke. Employed coping styles were “avoidance and brooding”, “positivity and problem solving” and “seeking social support”. Thirty-one of the 81 FD patients (38%) had depressive symptoms. CESD-scores were lower in patients with better health perception and more “positivity and problem solving” and higher in patients with more pain and “avoidance and brooding”. The best model explained 70% (95%CI: 54–76%) of observed variance of the CESD. Conclusions Depressive symptoms in FD are related to pain, negative health perception and use of specific coping styles. Psychological interventions could be employed to alter coping behavior and alleviate depressive symptoms.
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Affiliation(s)
- Simon Körver
- Department of Endocrinology and Metabolism, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Gert J Geurtsen
- Department of Medical Psychology, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Carla E M Hollak
- Department of Endocrinology and Metabolism, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Ivo N van Schaik
- Department of Neurology, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Maria G F Longo
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Marjana R Lima
- Department of Radiology, Hospital Moinhos de Vento, Porto Alegre, Brazil
| | | | - Marcel G W Dijkgraaf
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Mirjam Langeveld
- Department of Endocrinology and Metabolism, Amsterdam UMC, location AMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
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Abstract
Fabry disease is a rare lysosomal disorder characterized by deficient or absent α-galactosidase A activity resulting from mutations in the GLA gene. Migalastat (Galafold™), a pharmacological chaperone, stabilizes and facilitates trafficking of amenable mutant forms of α-galactosidase A enzyme from the endoplasmic reticulum to lysosomes and increases its lysosomal activity. Oral migalastat is the first pharmacological chaperone approved for treating patients [aged ≥ 18 years (USA and Canada) or ≥ 16 years in other countries] with Fabry disease who have a migalastat-amenable GLA mutation. In the FACETS trial in enzyme replacement therapy (ERT)-naive patients with GLA mutations amenable or non-amenable to migalastat, there was no significant difference between the migalastat and placebo groups for the proportion of patients achieving a ≥ 50% reduction in the number of globotriaosylceramide (GL-3) inclusions/kidney interstitial capillary (KIC) at 6 months [primary endpoint; intent-to-treat (ITT) population]. In the modified ITT population (i.e. patients with migalastat-amenable GLA mutations), relative to placebo, migalastat treatment significantly reduced the mean number of GL-3 inclusions/KIC and plasma lyso-globotriaosylsphingosine levels at 6 months. Among evaluable patients, migalastat maintained renal function and reduced cardiac mass after ≤ 24 months’ therapy. In the ATTRACT trial in ERT-experienced patients, renal function was maintained during 18 months of migalastat or ERT; however, migalastat significantly reduced cardiac mass compared with ERT. Migalastat was generally well tolerated in both of these trials. Given its convenient oral regimen and the limited therapeutic options available, migalastat is an important treatment option for Fabry disease in patients with migalastat-amenable GLA mutations.
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Rickert V, Kramer D, Schubert AL, Sommer C, Wischmeyer E, Üçeyler N. Globotriaosylceramide-induced reduction of K Ca1.1 channel activity and activation of the Notch1 signaling pathway in skin fibroblasts of male Fabry patients with pain. Exp Neurol 2019; 324:113134. [PMID: 31778662 DOI: 10.1016/j.expneurol.2019.113134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/01/2019] [Accepted: 11/24/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND Fabry disease (FD) is an X-linked lysosomal storage disorder that leads to cellular globotriaosylceramide (Gb3) accumulation due to mutations in the gene encoding α-galactosidase A. Trigger-induced acral burning pain is an early FD symptom of unknown pathophysiology. We aimed at investigating the potential role of skin fibroblasts in nociceptor sensitization. PATIENTS AND METHODS We enrolled 40 adult FD patients and ten healthy controls, who underwent a 6-mm skin punch biopsy at the lower leg. Dermal fibroblasts were cultivated and analyzed for Gb3 load. Fibroblast electrical activity was assessed using patch-clamp analysis at baseline and upon incubation with agalsidase-α for 24 h. We investigated gene expression of CC motif chemokine ligand 2 (CCL2), Ca2+activated K+-channel 1.1 (KCa1.1), interferone-γ (IFN-γ), transforming growth factor-β1 (TGF-β1), and transmembrane receptor notch homolog 1 (Notch1) using quantitative real-time-PCR, and protein levels of KCa1.1 by ELISA. Gene expression was determined at baseline and after fibroblast stimulation with tumor necrosis factor-α (TNF), modeling inflammation as a common pain trigger in FD. RESULTS Total Gb3 load was higher in FD fibroblasts than in control fibroblasts (p < .01). Upon increase of intracellular Ca2+ concentrations, we detected differential electrical activity of KCa1.1 in fibroblasts obtained from patients with FD. Gene expression (p < .05) and protein levels of KCa1.1 (p < .05) were higher in fibroblasts from FD patients compared to control fibroblasts, whereas electric channel activity was lower in FD fibroblasts. After incubation with agalsidase-α, we observed an over-proportionate increase of KCa1.1 activity in FD fibroblasts reaching 7-fold the currents of control cells (p < .01). Gene expression studies revealed higher mRNA levels of CCL2, INF-γ, and Notch1 in FD fibroblasts compared to controls at baseline and after TNF incubation (p < .05 each), while TGF-β1 was higher in FD fibroblasts only after incubation with TNF (p < .05). CONCLUSIONS Gb3 deposition in skin fibroblasts may impair KCa1.1 activity and activate the Notch1 signaling pathway. The resulting increase in pro-inflammatory mediator expression may contribute to cutaneous nociceptor sensitization as a potential mechanism of FD-associated pain.
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Affiliation(s)
| | - Daniela Kramer
- Department of Neurology, University of Würzburg, Germany
| | | | - Claudia Sommer
- Department of Neurology, University of Würzburg, Germany; Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Germany
| | - Erhard Wischmeyer
- Molecular Electrophysiology, Institute of Physiology, Center of Mental Health, University of Würzburg, 97080 Würzburg, Germany
| | - Nurcan Üçeyler
- Department of Neurology, University of Würzburg, Germany; Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Germany.
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Farhat F, Tarabaih M, Kattan J, Assi T. [A breast cancer case in the only Lebanese family with Fabry disease]. Bull Cancer 2019; 106:1065-1066. [PMID: 31586526 DOI: 10.1016/j.bulcan.2019.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/20/2019] [Accepted: 06/27/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Fadi Farhat
- Hôpital universitaire de Hammoud, département d'hématologie-oncologie, Sidon, Liban
| | - Mohamad Tarabaih
- Hôpital universitaire de Hammoud, département d'hématologie-oncologie, Sidon, Liban
| | - Joseph Kattan
- Hôtel-Dieu de France, département d'hématologie-oncologie, Beyrouth, Liban
| | - Tarek Assi
- Hôpital universitaire de Hammoud, département d'hématologie-oncologie, Sidon, Liban; Université Saint-Joseph, faculté de médicine, département d'hématologie-oncologie, Beyrouth, Liban.
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188
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Symptoms and Quality of Life in Patients with Fabry Disease: Results from an International Patient Survey. Adv Ther 2019; 36:2866-2880. [PMID: 31435831 PMCID: PMC6822826 DOI: 10.1007/s12325-019-01061-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Fabry disease is an X-linked lysosomal storage disorder caused by a deficiency of α-galactosidase A. Symptoms include neuropathic pain and gastrointestinal problems, such as diarrhoea. To inform and support the design of a Phase III clinical trial for a new oral treatment for Fabry disease, this study evaluated patients' experiences of Fabry disease symptoms, the impact of symptoms on their quality of life, and their views on participating in clinical trials. METHODS An online survey questionnaire was distributed to patients with Fabry disease, through relevant patient organisations. The questionnaire consisted mainly of quantitative, closed questions with pre-defined response options. Fabry-specific pain intensity and its impact on quality of life were rated on a scale from 0 to 10. RESULTS In total, 367 patients completed the survey, of whom half reported frequent pain, moderate to severe pain, and pain in their hands and feet. Pain frequency, intensity and location were similar for males and females. There was no clear association between Fabry-specific pain and the use of enzyme replacement therapy (ERT), with moderate to severe pain reported by 80.4% of participants receiving ERT and by 75.0% of participants not receiving ERT. Of participants who were receiving ERT, 35.7% said they were willing to discontinue it to take part in a clinical trial testing a new oral drug for treating Fabry disease. Gastrointestinal symptoms were more heterogeneous in nature and frequency than Fabry-specific pain, but still affected a significant proportion of participants. CONCLUSIONS Both male and female patients with Fabry disease experience significant Fabry-specific pain, which affects their quality of life. Furthermore, frequent diarrhoea affects many patients. The symptoms occur independently of the use of ERT. This suggests the healthcare needs of patients with Fabry disease are not being fully met, and additional treatments are required to improve symptoms and quality of life. FUNDING This study was sponsored by Actelion Pharmaceuticals Ltd. Study sponsorship was transferred to Idorsia Pharmaceuticals Ltd in July 2018.
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Cerón-Rodríguez M, Ramón-García G, Barajas-Colón E, Franco-Álvarez I, Salgado-Loza JL. Renal globotriaosylceramide deposits for Fabry disease linked to uncertain pathogenicity gene variant c.352C>T/p.Arg118Cys: A family study. Mol Genet Genomic Med 2019; 7:e981. [PMID: 31566927 PMCID: PMC6825844 DOI: 10.1002/mgg3.981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 08/26/2019] [Accepted: 08/29/2019] [Indexed: 01/09/2023] Open
Abstract
Background Fabry disease (FD) has an extensive phenotypic expression associated with GLA gene variants. The GLA gene variant c.352C>T/p.Arg118Cys was considered with uncertain pathogenicity because of the finding of high residual alpha‐galactosidase A (α‐Gal A) enzyme activity, the absence of Mendelian segregation with an FD phenotype with many individuals remaining asymptomatic at old ages and the lack of globotriaosylceramide (Gb3) deposits in tissues. Gb3 deposits are found in kidneys before the progression to overt microalbuminuria and decreased glomerular filtration. Methods We describe a family with c.352C>T/p.Arg118Cys variant and pathognomonic signs of FD renal damage in masculine children. Results The proband died of end‐stage renal failure and we analyzed GLA gene in his offspring and found the variant in all daughters and five of seven grandchildren. In patients who we measure plasma and urinary Gb3, α‐Gal A enzyme activity, and plasma globotriaosylsphingosine (Lyso‐Gb3), these were normal or almost normal. A kidney biopsy was performed in two boys and one girl with normal renal function and characteristic signs of FD as enlarged and vacuolated epithelial cells, myelin figures, myelin‐like figures, lamellated structures in podocytes and endothelial cells, were found in boys. These boys received agalsidase beta 1 mg/kg IV infusion every other week to prevent further renal damage. Conclusion This is the first report that shows a link between FD renal Gb3 deposits and c.352C>T/p.Arg118Cys variant, supporting pathogenicity of a variant considered until now with uncertain pathogenicity.
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Affiliation(s)
| | - Guillermo Ramón-García
- Department of Pathology, Hospital Infantil de México, Federico Gómez, Mexico City, México
| | - Edgar Barajas-Colón
- Department of Nephrology, Hospital Infantil de México, Federico Gómez, Mexico City, México
| | - Isidro Franco-Álvarez
- Department of Nephrology, Hospital Infantil de México, Federico Gómez, Mexico City, México
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Doykov ID, Heywood WE, Nikolaenko V, Śpiewak J, Hällqvist J, Clayton PT, Mills P, Warnock DG, Nowak A, Mills K. Rapid, proteomic urine assay for monitoring progressive organ disease in Fabry disease. J Med Genet 2019; 57:38-47. [PMID: 31519711 DOI: 10.1136/jmedgenet-2019-106030] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 07/04/2019] [Accepted: 07/24/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Fabry disease is a progressive multisystemic disease, which affects the kidney and cardiovascular systems. Various treatments exist but decisions on how and when to treat are contentious. The current marker for monitoring treatment is plasma globotriaosylsphingosine (lyso-Gb3), but it is not informative about the underlying and developing disease pathology. METHODS We have created a urine proteomic assay containing a panel of biomarkers designed to measure disease-related pathology which include the inflammatory system, lysosome, heart, kidney, endothelium and cardiovascular system. Using a targeted proteomic-based approach, a series of 40 proteins for organ systems affected in Fabry disease were multiplexed into a single 10 min multiple reaction monitoring Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) assay and using only 1 mL of urine. RESULTS Six urinary proteins were elevated in the early-stage/asymptomatic Fabry group compared with controls including albumin, uromodulin, α1-antitrypsin, glycogen phosphorylase brain form, endothelial protein receptor C and intracellular adhesion molecule 1. Albumin demonstrated an increase in urine and could indicate presymptomatic disease. The only protein elevated in the early-stage/asymptomatic patients that continued to increase with progressive multiorgan involvement was glycogen phosphorylase brain form. Podocalyxin, fibroblast growth factor 23, cubulin and Alpha-1-Microglobulin/Bikunin Precursor (AMBP) were elevated only in disease groups involving kidney disease. Nephrin, a podocyte-specific protein, was elevated in all symptomatic groups. Prosaposin was increased in all symptomatic groups and showed greater specificity (p<0.025-0.0002) according to disease severity. CONCLUSION This work indicates that protein biomarkers could be helpful and used in conjunction with plasma lyso-Gb3 for monitoring of therapy or disease progression in patients with Fabry disease.
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Affiliation(s)
- Ivan D Doykov
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK
| | - Wendy E Heywood
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK.,NIHR Great Ormond Street Biomedical Research Centre, Great Ormond Street Hospital and UCL Great Ormond Street Institute of Child Health, London, UK
| | - Valeria Nikolaenko
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK.,NIHR Great Ormond Street Biomedical Research Centre, Great Ormond Street Hospital and UCL Great Ormond Street Institute of Child Health, London, UK
| | - Justyna Śpiewak
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK
| | - Jenny Hällqvist
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK
| | - Peter Theodore Clayton
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK
| | - Philippa Mills
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK
| | - David G Warnock
- Division of Nephrology, Department of Medicine, University of Alabama, Birmingham, Alabama, USA
| | - Albina Nowak
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich and University of Zurich, Raemistrasse, Zurich, Switzerland
| | - Kevin Mills
- Centre for Inborn Errors of Metabolism, UCL Institute of Child Health Library, London, UK .,NIHR Great Ormond Street Biomedical Research Centre, Great Ormond Street Hospital and UCL Great Ormond Street Institute of Child Health, London, UK
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191
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Giau VV, Bagyinszky E, Youn YC, An SSA, Kim SY. Genetic Factors of Cerebral Small Vessel Disease and Their Potential Clinical Outcome. Int J Mol Sci 2019; 20:ijms20174298. [PMID: 31484286 PMCID: PMC6747336 DOI: 10.3390/ijms20174298] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/27/2019] [Accepted: 09/01/2019] [Indexed: 12/23/2022] Open
Abstract
Cerebral small vessel diseases (SVD) have been causally correlated with ischemic strokes, leading to cognitive decline and vascular dementia. Neuroimaging and molecular genetic tests could improve diagnostic accuracy in patients with potential SVD. Several types of monogenic, hereditary cerebral SVD have been identified: cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CARASIL), cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), cathepsin A-related arteriopathy with strokes and leukoencephalopathy (CARASAL), hereditary diffuse leukoencephalopathy with spheroids (HDLS), COL4A1/2-related disorders, and Fabry disease. These disorders can be distinguished based on their genetics, pathological and imaging findings, clinical manifestation, and diagnosis. Genetic studies of sporadic cerebral SVD have demonstrated a high degree of heritability, particularly among patients with young-onset stroke. Common genetic variants in monogenic disease may contribute to pathological progress in several cerebral SVD subtypes, revealing distinct genetic mechanisms in different subtype of SVD. Hence, genetic molecular analysis should be used as the final gold standard of diagnosis. The purpose of this review was to summarize the recent discoveries made surrounding the genetics of cerebral SVD and their clinical significance, to provide new insights into the pathogenesis of cerebral SVD, and to highlight the possible convergence of disease mechanisms in monogenic and sporadic cerebral SVD.
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Affiliation(s)
- Vo Van Giau
- Department of Bionano Technology & Gachon Bionano Research Institute, Gachon University, Seongnam-si, Gyeonggi-do 461-701, Korea
| | - Eva Bagyinszky
- Department of Bionano Technology & Gachon Bionano Research Institute, Gachon University, Seongnam-si, Gyeonggi-do 461-701, Korea
| | - Young Chul Youn
- Department of Neurology, Chung-Ang University College of Medicine, Seoul 06973, Korea.
| | - Seong Soo A An
- Department of Bionano Technology & Gachon Bionano Research Institute, Gachon University, Seongnam-si, Gyeonggi-do 461-701, Korea.
| | - Sang Yun Kim
- Department of Neurology, Seoul National University College of Medicine & Neurocognitive Behavior Center, Seoul National University Bundang Hospital, Seoul 06973, Korea
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Martins AM, Cabrera G, Molt F, Suárez‐Obando F, Valdés RA, Varas C, Yang M, Politei JM. The clinical profiles of female patients with Fabry disease in Latin America: A Fabry Registry analysis of natural history data from 169 patients based on enzyme replacement therapy status. JIMD Rep 2019; 49:107-117. [PMID: 31497488 PMCID: PMC6718114 DOI: 10.1002/jmd2.12071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Fabry disease is an X-linked lysosomal storage disorder with heterogeneous clinical expression in female patients ranging from asymptomatic to severe clinical presentations as in classic males. We assessed clinical profiles and compared natural history data of female patients eventually initiated on enzyme replacement therapy ("ERT-recipients") with those remaining untreated ("ERT-naïve"). METHODS We analyzed Fabry Registry data from 93 ERT-recipients, collected prior to ERT initiation, and 76 ERT-naïve females with classic or unclassified phenotypes from four Latin American countries and evaluated Fabry symptoms, interventricular septum thickness, left ventricular posterior wall thickness, estimated glomerular filtration rate, and severe clinical events. RESULTS For 169 patients with available data, median age of first Fabry symptom manifestation was 12.7 years with peripheral pain as predominant first symptom, and diagnostic delay of 10.3 years from the first reported symptom. Female patients had high symptomatic burden during natural history follow-up, with 83% reporting peripheral pain, 69%-79% cold/heat intolerance or abnormal sweating, and 32% gastrointestinal symptoms. ERT-recipients reported similar age at first symptom as ERT-naïve patients but they were older at diagnosis (median 39.2 vs 24.4 years, P < .01) and last follow-up (median 43.4 vs 28.2 years, P < .01). Reported Fabry symptom frequencies and abnormal echocardiography findings were higher in ERT-recipients. Functional renal assessments were normal and similar. CONCLUSIONS Female patients from Latin America have notable diagnostic delays and high symptomatic burden. ERT was prescribed late in females with advanced age at diagnosis and advanced disease. There remained many female patients who had been diagnosed at younger age, had substantial Fabry manifestations, but did not receive disease-specific treatment.
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Affiliation(s)
- Ana M. Martins
- Reference Center for Inborn Errors of MetabolismFederal University of São PauloSão PauloSPBrazil
| | | | - Fernando Molt
- Departamento de Clínicas, Facultad de MedicinaUniversidad Católica del NorteCoquimboChile
- Fabry Disease Multidisciplinary TeamHospital San Pablo de CoquimboCoquimboChile
| | - Fernando Suárez‐Obando
- Instituto de Genética Humana, Facultad de Medicina, Hospital Universitario San IgnacioPontificia Universidad JaverianaBogotaColombia
| | - Régulo A. Valdés
- National Dialysis Coordinator of Social Security of PanamaPanama CityPanama
| | - Carmen Varas
- Fabry Disease Multidisciplinary TeamHospital San Pablo de CoquimboCoquimboChile
| | - Meng Yang
- Sanofi GenzymeCambridgeMassachusetts
| | - Juan M. Politei
- Department of NeurologyFundación Para el Estudio de Enfermedades Neurometabólicas (FESEN)Buenos AiresArgentina
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193
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Pietilä-Effati P, Saarinen JT, Löyttyniemi E, Autio R, Saarenhovi M, Haanpää MK, Kantola I. Natural course of Fabry disease with the p. Arg227Ter (p.R227*) mutation in Finland: Fast study. Mol Genet Genomic Med 2019; 7:e00930. [PMID: 31411008 PMCID: PMC6785458 DOI: 10.1002/mgg3.930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/06/2019] [Accepted: 07/23/2019] [Indexed: 12/02/2022] Open
Abstract
Background Fabry disease is caused by a deficient or an absent alfa‐galactosidase A activity and is an X‐linked disorder that results in organ damage and a shortened life span, especially in males. The severity of the disease depends on the type of mutation, gender, skewed X‐chromosome inactivation, and other still unknown factors. Methods In this article, we describe the natural course of a common classic Fabry disease mutation, p.Arg227Ter or p.R227*, in Finland. Results Four males and ten females belonged to two extended families. The mean age was 46 years (SD 18.4). Six patients (43%) had cardiac hypertrophy, three patients (21%) had ischemic stroke, and none had severe kidney dysfunction. Three patients had atrial fibrillation; two patients who had atrial fibrillation also had pacemakers. All males over 30 years of age had at least one of the following manifestations: cardiac hypertrophy, stroke, or proteinuria. In females, the severity of Fabry disease varied from classic multiorgan disease to a condition that mimicked the attenuated cardiac variant. No one was totally asymptomatic without any signs of Fabry disease. Cardiac magnetic resonance imaging was performed on nine of 14 patients was the most sensitive for detecting early cardiac manifestations. Five patients (55%) had late gadolinium enhancement‐positive segments. Conclusion Cardiac involvement should be effectively detected in females before considering them asymptomatic mutation carriers.
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Affiliation(s)
| | | | | | - Reijo Autio
- Department of Radiology, Vaasa Central Hospital, Vaasa, Finland
| | - Maria Saarenhovi
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, University of Turku, Turku, Finland
| | - Maria K Haanpää
- Department of Clinical Genetics, Turku University Hospital, Turku, Finland
| | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, University of Turku, Turku, Finland
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194
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L'Imperio V, Smith A, Pisani A, D'Armiento M, Scollo V, Casano S, Sinico RA, Nebuloni M, Tosoni A, Pieruzzi F, Magni F, Pagni F. MALDI imaging in Fabry nephropathy: a multicenter study. J Nephrol 2019; 33:299-306. [PMID: 31292888 DOI: 10.1007/s40620-019-00627-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/25/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND The current study evaluates the application of histology and in situ proteomics (MALDI-MSI) in Fabry nephropathy (FN), showing investigative and classification role for this coupled approach. METHODS A retrospective series of 14 formalin fixed paraffin embedded (FFPE) renal biopsies with diagnosis of FN and 1 biopsy from a patient bearing a galactosidase-α (GLA) genetic variant of unknown significance (GVUS, c.376A>G) have been classified for clinical characteristics. Groups were compared for histological differences (following the ISGFN scoring system). Moreover, renal biopsies from these cases have been analyzed with MALDI-MSI as previously described to find proteomic signatures among different mutations and phenotypes. RESULTS Comparison of clinical features revealed lower mean 24 h proteinuria in females (225 mg/24 h) than in males (1477.5 mg/24 h, p = 0.006). As for clinical characteristics, females significantly differed from males only for lower arterial sclerosis, with a mean value of 0.82 vs. 1.05 (p = 0.001). Proteomic analysis demonstrated specific signatures in different subgroups of FN patients. Moreover, MALDI correctly classified cases with undetermined mutation or GVUS. CONCLUSIONS The present study demonstrated the feasible application of MALDI-MSI in the analysis of FN FFPE renal biopsies, allowing the detection of putative signatures for phenotypic distinction and demonstrating genetic classification capabilities.
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Affiliation(s)
- Vincenzo L'Imperio
- Department of Medicine and Surgery, Pathology, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Andrew Smith
- Department of Medicine and Surgery, Clinical Proteomics and Metabolomics Unit, University of Milano-Bicocca, Monza, Italy
| | - Antonio Pisani
- Chair of Nephrology, University Federico II, Naples, Italy
| | - Maria D'Armiento
- Department of Biomorphological and Functional Sciences, Section of Anatomic Pathology, Federico II University, Naples, Italy
| | - Viviana Scollo
- Department of Medicine and Surgery, Nephrology Unit, University of Milano-Bicocca, Monza, Italy
| | - Stefano Casano
- Department of Medicine and Surgery, Pathology, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy
| | - Renato Alberto Sinico
- Department of Medicine and Surgery, Nephrology Unit, University of Milano-Bicocca, Monza, Italy
| | - Manuela Nebuloni
- Research Center for Renal Immunopathology, University of Milan, Milan, Italy.,Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Antonella Tosoni
- Research Center for Renal Immunopathology, University of Milan, Milan, Italy.,Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, Milan, Italy
| | - Federico Pieruzzi
- Department of Medicine and Surgery, Nephrology Unit, University of Milano-Bicocca, Monza, Italy
| | - Fulvio Magni
- Department of Medicine and Surgery, Clinical Proteomics and Metabolomics Unit, University of Milano-Bicocca, Monza, Italy
| | - Fabio Pagni
- Department of Medicine and Surgery, Pathology, San Gerardo Hospital, University of Milano-Bicocca, Monza, Italy. .,Research Center for Renal Immunopathology, University of Milan, Milan, Italy.
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195
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Körver S, van de Schraaf SAJ, Geurtsen GJ, Hollak CEM, van Schaik IN, Langeveld M. The Mini Mental State Examination does not accurately screen for objective cognitive impairment in Fabry Disease. JIMD Rep 2019; 48:53-59. [PMID: 31392113 PMCID: PMC6606981 DOI: 10.1002/jmd2.12036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 01/31/2023] Open
Abstract
Fabry disease (FD) patients may suffer from objective cognitive impairment (OCI). This study assessed the accuracy of the Mini Mental State Examination (MMSE) to screen for OCI in FD patients. Presence or absence of OCI was established using a neuropsychological test battery. For different MMSE cutoffs sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and clinical utility index (CUI) to identify OCI were calculated. Eighty-one patients were included (mean age 44.5 ± 14.3, 35% men, 74% classical phenotype) of which 13 patients (16%) had OCI. The median MMSE score was 29 (range: 25-30). MMSE cutoffs ≤28 and ≤29 had the highest sensitivity and specificity, with higher specificity reached at cutoff ≤28 (sensitivity: .46, specificity: .73) and higher sensitivity at cutoff ≤29 (sensitivity: .92, specificity: .40). PPV was low for both cutoffs (PPV ≤28: .25, PPV ≤29: .23) resulting in a low positive CUI (case finding ability). The results of our study indicate that the MMSE does not accurately screen for OCI in FD, with poor sensitivity-specificity trade-off at all cutoffs. The low PPV shows that the majority of FD patients that score below the cutoffs do not suffer from OCI. Administering the MMSE as a screening test will lead to unnecessary referrals for neuropsychological testing, which is time consuming and burdensome. Screening tools designed to accurately detect mild (executive) impairment might prove more appropriate to screen for OCI in FD.
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Affiliation(s)
- Simon Körver
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Sara A. J. van de Schraaf
- Department of Medical PsychologyAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Gert J. Geurtsen
- Department of Medical PsychologyAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Carla E. M. Hollak
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Ivo N. van Schaik
- Department of NeurologyAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
| | - Mirjam Langeveld
- Department of Endocrinology and MetabolismAmsterdam UMC, Location AMC, University of AmsterdamAmsterdamThe Netherlands
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196
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Ramaswami U, Bichet DG, Clarke LA, Dostalova G, Fainboim A, Fellgiebel A, Forcelini CM, An Haack K, Hopkin RJ, Mauer M, Najafian B, Scott CR, Shankar SP, Thurberg BL, Tøndel C, Tylki-Szymanska A, Bénichou B, Wijburg FA. Low-dose agalsidase beta treatment in male pediatric patients with Fabry disease: A 5-year randomized controlled trial. Mol Genet Metab 2019; 127:86-94. [PMID: 30987917 DOI: 10.1016/j.ymgme.2019.03.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/06/2019] [Accepted: 03/30/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Fabry disease is a rare, X-linked, lifelong progressive lysosomal storage disorder. Severely deficient α-galactosidase A activity in males is associated with the classic phenotype with early-onset, multisystem manifestations evolving to vital organ complications during adulthood. We assessed the ability of 2 low-dose agalsidase beta regimens to lower skin, plasma, and urine globotriaosylceramide (GL-3) levels, and influence clinical manifestations in male pediatric Fabry patients. METHODS In this multicenter, open-label, parallel-group, phase 3b study, male patients aged 5-18 years were randomized to receive agalsidase beta at 0.5 mg/kg 2-weekly (n = 16) or 1.0 mg/kg 4-weekly (n = 15) for 5 years. All had plasma/urine GL-3 accumulation but no clinically evident organ involvement. The primary outcome was GL-3 accumulation in superficial skin capillary endothelium (SSCE). RESULTS The mean age was 11.6 (range: 5-18) years and all but one of the 31 patients had classic GLA mutations. In the overall cohort, shifts from non-0 to 0-scores for SSCE GL-3 were significant at years 1, 3, and 5, but results were variable. Plasma GL-3 normalized and urine GL-3 reduced substantially. Higher anti-agalsidase beta antibody titers were associated with less robust SSCE GL-3 clearance and higher urine GL-3 levels. Renal function remained stable and normal. Most Fabry signs and symptoms tended to stabilize; abdominal pain was significantly reduced (-26.3%; P = .0215). No new clinical major organ complications were observed. GL-3 accumulation and cellular and vascular injury were present in baseline kidney biopsies (n = 7). Treatment effects on podocyte GL-3 content and foot process width were highly variable. Fabry arteriopathy overall increased in severity. Two patients withdrew and 2 had their agalsidase beta dose increased. CONCLUSIONS Our findings increase the limited amount of available data on long-term effects of enzyme replacement therapy in pediatric, classic Fabry patients. The low-dose regimens studied here over a period of 5 years did not demonstrate a consistent benefit among the patients in terms of controlling symptomatology, urine GL-3 levels, and pathological histology. The current available evidence supports treatment of pediatric, classic male Fabry patients at the approved agalsidase beta dose of 1.0 mg/kg 2-weekly if these patients are considered for enzyme replacement therapy with agalsidase beta.
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Affiliation(s)
- Uma Ramaswami
- Lysosomal Disorders Unit, Institute of Immunity and Transplantation, Royal Free London NHS Foundation Trust, University College of London, London, United Kingdom.
| | - Daniel G Bichet
- Nephrology Service, Research Center, Hôpital du Sacré-Coeur de Montréal and University of Montreal, Montreal, QC, Canada
| | - Lorne A Clarke
- Child and Family Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Gabriela Dostalova
- 2nd Department of Internal Medicine and Department of Cardiovascular Medicine, Charles University Prague, General University Hospital Prague, Prague, Czech Republic
| | - Alejandro Fainboim
- Hospital de Niños Ricardo Gutierrez, Hospital de Dia Polivalente, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Andreas Fellgiebel
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Mainz, Germany
| | - Cassiano M Forcelini
- Faculty of Medicine, Universidade de Passo Fundo, and Hospital São Vicente de Paulo, Passo Fundo, RS, Brazil
| | | | - Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College Medicine, Cincinnati, OH, USA
| | - Michael Mauer
- Departments of Pediatrics and Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Behzad Najafian
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - C Ronald Scott
- Division of Genetic Medicine, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Suma P Shankar
- Departments of Human Genetics and Ophthalmology, Emory University School of Medicine, Decatur, GA, USA
| | | | - Camilla Tøndel
- Departments of Pediatrics and Clinical Medicine, Haukeland University Hospital, Bergen, Norway
| | - Anna Tylki-Szymanska
- Department of Pediatric Nutrition and Metabolic Diseases, The Children's Memorial Health Institute, Warsaw, Poland
| | | | - Frits A Wijburg
- Department of Pediatric Metabolic Diseases, Emma Children's Hospital and Amsterdam Lysosome Center "Sphinx", Academic Medical Center, University Hospital of Amsterdam, Amsterdam, the Netherlands
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197
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Contemporary View of Magnetic Resonance Imaging in Fabry Disease. CURRENT CARDIOVASCULAR IMAGING REPORTS 2019. [DOI: 10.1007/s12410-019-9498-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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198
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Tandem mass spectrometry analysis of urinary podocalyxin and podocin in the investigation of podocyturia in women with preeclampsia and Fabry disease patients. Clin Chim Acta 2019; 495:67-75. [PMID: 30898510 DOI: 10.1016/j.cca.2019.03.1615] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Podocytes are highly differentiated visceral cells, and several related specific proteins, such as podocalyxin and podocin are potential tools for the evaluation of podocyturia. However, precise quantitation of podocyturia-related proteins is complex and often unreliable. METHOD A reversed-phase ultra-performance liquid chromatography coupled to tandem mass spectrometry method was developed and validated to quantify podocalyxin and podocin levels in urine supernatant by using specific cleavable peptides and standards. Urine samples from women with normotensive or hypertensive pregnancies, gestational diabetes and preeclampsia, as well as treated and untreated Fabry patients, and gender-matched controls were investigated. RESULTS The multiplex analysis shows that podocalyxin levels were higher than podocin levels in patients, the former being particularly higher in pregnant women. Women with preeclampsia had abnormal urine levels of both proteins with a higher sensitivity for podocalyxin. Slightly increased levels of podocin were also observed in Fabry males, while both proteins were increased in untreated Fabry females. Correlations were established between podocalyxin and podocin levels and clinical parameters associated with Fabry disease and preeclampsia. CONCLUSIONS This methodology makes possible the precise, simultaneous and reliable analysis of podocalyxin and podocin levels, and offers a valuable tool for the evaluation of podocyturia.
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199
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Oliveira JP, Ferreira S. Multiple phenotypic domains of Fabry disease and their relevance for establishing genotype- phenotype correlations. APPLICATION OF CLINICAL GENETICS 2019; 12:35-50. [PMID: 30881085 PMCID: PMC6407513 DOI: 10.2147/tacg.s146022] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fabry disease (FD) is a rare X-linked glycosphingolipidosis resulting from deficient α-galactosidase A (AGAL) activity, caused by pathogenic mutations in the GLA gene. In males, the multisystemic involvement and the severity of tissue injury are critically dependent on the level of AGAL residual enzyme activity (REA) and on the metabolic load of the disease, but organ susceptibility to damage varies widely, with heart appearing as the most vulnerable to storage pathology, even with relatively high REA. The expression of FD can be conceived as a multidomain phenotype, where each of the component domains is the laboratory or clinical expression of the causative GLA mutation along a complex pathophysiologic cascade pathway. The AGAL enzyme activity is the most clinically useful marker of the protein phenotype. The metabolic phenotype and the pathologic phenotype are diverse expressions of the storage pathology, respectively, assessed by biochemical and histological/ultrastructural methods. The storage phenotypes are the direct consequences of enzyme deficiency and hence, together with the enzymatic phenotype, constitute the more specific diagnostic markers of FD. In the pathophysiology cascade, the clinical phenotypes are most distantly linked to the underlying genetic causation, being critically influenced by the patients’ gender and age, and modulated by the effects of variation in other genetic loci, of polygenic inheritance and of environmental risk factors. A major challenge in the clinical phenotyping of patients with FD is the differential diagnosis between its nonspecific, later-onset complications, particularly the cerebrovascular, cardiac and renal, and similar chronic illnesses that are common in the general population. Comprehensive phenotyping, whenever possible performed in hemizygous males, is therefore crucial for grading the severity of pathogenic GLA variants, to clarify the phenotypic correlations of hypomorphic alleles, to define benign polymorphisms, as well as to establish the pathogenicity of variants of uncertain significance.
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Affiliation(s)
- João Paulo Oliveira
- Department of Genetics, Faculty of Medicine, University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal, .,Service of Medical Genetics, São João University Hospital Centre, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal.,i3S - Institute for Research and Innovation in Health / [Instituto de Investigação e Inovação em Saúde], University of Porto, 4200-135 Porto, Portugal,
| | - Susana Ferreira
- Department of Genetics, Faculty of Medicine, University of Porto, Alameda Hernâni Monteiro, 4200-319 Porto, Portugal, .,i3S - Institute for Research and Innovation in Health / [Instituto de Investigação e Inovação em Saúde], University of Porto, 4200-135 Porto, Portugal,
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200
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Germain DP, Nicholls K, Giugliani R, Bichet DG, Hughes DA, Barisoni LM, Colvin RB, Jennette JC, Skuban N, Castelli JP, Benjamin E, Barth JA, Viereck C. Efficacy of the pharmacologic chaperone migalastat in a subset of male patients with the classic phenotype of Fabry disease and migalastat-amenable variants: data from the phase 3 randomized, multicenter, double-blind clinical trial and extension study. Genet Med 2019; 21:1987-1997. [PMID: 30723321 PMCID: PMC6752321 DOI: 10.1038/s41436-019-0451-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/22/2019] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Outcomes in patients with Fabry disease receiving migalastat during the phase 3 FACETS trial (NCT00925301) were evaluated by phenotype. METHODS Data were evaluated in two subgroups of patients with migalastat-amenable GLA variants: "classic phenotype" (n = 14; males with residual peripheral blood mononuclear cell α-galactosidase A <3% normal and multiorgan system involvement) and "other patients" (n = 36; males not meeting classic phenotype criteria and all females). Endpoints included estimated glomerular filtration rate (eGFR), left ventricular mass index (LVMi), Gastrointestinal Symptoms Rating Scale diarrhea subscale (GSRS-D), renal peritubular capillary (PTC) globotriaosylceramide (GL-3) inclusions, and plasma globotriaosylsphingosine (lyso-Gb3). RESULTS Baseline measures in the classic phenotype patients suggested a more severe phenotype. At month 24, mean (SD) annualized change in eGFRCKD-EPI with migalastat was -0.3 (3.76) mL/min/1.73 m2 in the classic phenotype subgroup; changes in LVMi, GSRS-D, and lyso-Gb3 were -16.7 (18.64) g/m2, -0.9 (1.66), and -36.8 (35.78) nmol/L, respectively. At month 6, mean PTC GL-3 inclusions decreased with migalastat (-0.8) and increased with placebo (0.3); switching from placebo to migalastat, PTC inclusions decreased by -0.7. Numerically smaller changes in these endpoints were observed in the other patients. CONCLUSION Migalastat provided clinical benefit to patients with Fabry disease and amenable variants, regardless of disease severity.
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Affiliation(s)
- Dominique P Germain
- Division of Medical Genetics and Inserm U1179, University of Versailles, Paris-Saclay University, Montigny, France.
| | - Kathy Nicholls
- Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Roberto Giugliani
- Medical Genetics Service, HCPA, and Department of Genetics, UFRGS, Porto Alegre, Brazil
| | - Daniel G Bichet
- Department of Nephrology, Hôpital du Sacré-Coeur, University of Montreal, Montreal, QC, Canada
| | - Derralynn A Hughes
- Royal Free NHS Foundation Trust and University College London, London, UK
| | - Laura M Barisoni
- Department of Pathology, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Robert B Colvin
- Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - J Charles Jennette
- School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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