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Frustaci A, Verardo R, Galea N, Alfarano M, Magnocavallo M, Marchitelli L, Sansone L, Belli M, Cristina M, Frustaci E, Russo MA, Chimenti C. Long-Term Clinical-Pathologic Results of Enzyme Replacement Therapy in Prehypertrophic Fabry Disease Cardiomyopathy. J Am Heart Assoc 2024; 13:e032734. [PMID: 38563373 DOI: 10.1161/jaha.123.032734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/04/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND The limited ability of enzyme replacement therapy (ERT) in removing globotriaosylceramide from cardiomyocytes is recognized for advanced Fabry disease cardiomyopathy (FDCM). Prehypertrophic FDCM is believed to be cured or stabilized by ERT. However, no pathologic confirmation is available. We report here on the long-term clinical-pathologic impact of ERT on prehypertrophic FDCM. METHODS AND RESULTS Fifteen patients with Fabry disease with left ventricular maximal wall thickness ≤10.5 mm at cardiac magnetic resonance required endomyocardial biopsy because of angina and ventricular arrhythmias. Endomyocardial biopsy showed coronary small-vessel disease in the angina cohort, and vacuoles in smooth muscle cells and cardiomyocytes ≈20% of the cell surface containing myelin bodies at electron microscopy. Patients received α-agalsidase in 8 cases, and β-agalsidase in 7 cases. Both groups experienced symptom improvement except 1 patients treated with α-agalsidase and 1 treated with β-agalsidase. After ERT administration ranging from 4 to 20 years, all patients had control cardiac magnetic resonance and left ventricular endomyocardial biopsy because of persistence of symptoms or patient inquiry on disease resolution. In 13 asymptomatic patients with FDCM, left ventricular maximal wall thickness and left ventricular mass, cardiomyocyte diameter, vacuole surface/cell surface ratio, and vessels remained unchanged or minimally increased (left ventricular mass increased by <2%) even after 20 years of observation, and storage material was still present at electron microscopy. In 2 symptomatic patients, FDCM progressed, with larger and more engulfed by globotriaosylceramide myocytes being associated with myocardial virus-negative lymphocytic inflammation. CONCLUSIONS ERT stabilizes storage deposits and myocyte dimensions in 87% of patients with prehypertrophic FDCM. Globotriaosylceramide is never completely removed even after long-term treatment. Immune-mediated myocardial inflammation can overlap, limiting ERT activity.
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Affiliation(s)
- Andrea Frustaci
- Cellular and Molecular Cardiology Lab IRCCS L. Spallanzani Rome Italy
| | - Romina Verardo
- Cellular and Molecular Cardiology Lab IRCCS L. Spallanzani Rome Italy
| | - Nicola Galea
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences Sapienza University of Rome Rome Italy
| | - Maria Alfarano
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences Sapienza University of Rome Rome Italy
| | - Michele Magnocavallo
- Cardiology Division, Arrhythmology Unit S. Giovanni Calibita Hospital Rome Italy
| | - Livia Marchitelli
- Department of Radiological, Oncological, and Pathological Anatomy Sciences Sapienza University of Rome Rome Italy
| | - Luigi Sansone
- Department of Human Sciences and Promotion of the Quality of Life San Raffaele Roma Open University Rome Italy
- Laboratory of Molecular and Cellular Pathology IRCCS San Raffaele Roma Rome Italy
| | - Manuel Belli
- Department of Human Sciences and Promotion of the Quality of Life San Raffaele Roma Open University Rome Italy
- Laboratory of Molecular and Cellular Pathology IRCCS San Raffaele Roma Rome Italy
| | - Mario Cristina
- Department of Molecular Medicine Sapienza University of Rome Rome Italy
- MEBIC Consortium and IRCCS San Raffaele Roma Rome Italy
| | - Emanuela Frustaci
- Department of Molecular Medicine Sapienza University of Rome Rome Italy
- Technoscience, Parco Scientifico e Tecnologico Pontino Latina Italy
- MEBIC Consortium and IRCCS San Raffaele Roma Rome Italy
| | | | - Cristina Chimenti
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences Sapienza University of Rome Rome Italy
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Nicholls K, Denaro C, Tchan M, Ellaway C, Bratkovic D, Campbell S, Fookes M, Thomas M. Fabry-specific treatment in Australia: time to align eligibility criteria with international best practices. Intern Med J 2024. [PMID: 38212950 DOI: 10.1111/imj.16327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/20/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND Disease-specific therapy aims to improve symptoms, stabilise current disease and delay progression in patients with Fabry disease. In Australia, treatment access is subject to eligibility criteria initially established in 2004. Patients and their clinicians question why these criteria have remained unchanged despite significant progress in disease understanding. AIMS Appraise the clinical quality of the Australian treatment access criteria. METHODS The Fabry Australia Medical Advisory Committee (N = 6) used the Appraisal of Guidelines for REsearch and Evaluation Global Rating Scale (AGREE II GRS) to assess the clinical quality of the current treatment eligibility criteria. They reviewed the literature, developed 17 clinical statements to help guide reforms of the eligibility criteria and achieved consensus (achievement of ≥75% agreement in the range 5-7 on a 7-point Likert scale) through anonymous voting. The findings were applied to develop proposals for revised classification and treatment initiation criteria. RESULTS The current treatment eligibility criteria underperformed on the AGREE II GRS. They are pragmatic but out-of-step with contemporary data. Consensus was achieved on all 17 proposed clinical statements. There was strong agreement to differentiate classical male Fabry patients to facilitate timelier access to Fabry-specific treatment. There was also agreement on the value of adopting relevant organ involvement criteria in classical female patients and patients with non-classical disease. CONCLUSIONS Australian access criteria are misaligned with current clinical evidence. The clinical statements and proposed classification and initiation criteria should prompt discussions to support more equitable access to treatment and better align Australian practice with contemporary evidence and international guidelines.
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Affiliation(s)
- Kathleen Nicholls
- Department of Nephrology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Charles Denaro
- Department of Internal Medicine and Aged Care, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
- Academy of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Michel Tchan
- Department of Genetic Medicine, Westmead Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Carolyn Ellaway
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Genetic Metabolic Disorders Service, Sydney Children's Hospital Network, Sydney, New South Wales, Australia
| | - Drago Bratkovic
- Department of Internal Medicine and Aged Care, Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | | | - Megan Fookes
- Fabry Australia, Sydney, New South Wales, Australia
| | - Mark Thomas
- Department of Nephrology, Royal Perth Hospital, Perth, Western Australia, Australia
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Avarappattu J, Gaspert A, Spartà G, Rohrbach M. Impact of kidney biopsy on deciding when to initiate enzyme replacement therapy in children with Fabry disease. Pediatr Nephrol 2024; 39:131-140. [PMID: 37470867 PMCID: PMC10673963 DOI: 10.1007/s00467-023-06050-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 05/19/2023] [Accepted: 06/04/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Recommendations on when to start enzyme replacement therapy (ERT) in children with Fabry disease (FD) differ between guidelines. In this study, kidney biopsies of a cohort of 14 untreated children and one treated child were analyzed for their morphologic changes to determine whether early initiation of ERT is indicated. METHODS All pediatric FD patients (< 18 years old) diagnosed between 2003 and 2021 in our department who received a kidney biopsy were enrolled. Clinical symptoms; laboratory parameters regarding kidney function, such as eGFR, plasma urea, protein-creatinine, and albumin/creatinine ratio; and 14 kidney biopsies prior to ERT and one under treatment were retrospectively analyzed. RESULTS A total of 14 patients were enrolled, including 9 male and 5 female children, aged 3-18 years (median age 11). Seven of the enrolled children were 10 years old or younger. Histological analysis of kidney biopsy samples revealed severe vacuolization and accumulation of inclusions in podocytes and renal tubules. The majority of cases had no FD-specific clinical or laboratory features independent of age, gender, or genotype. The youngest FD patient presenting with isolated abnormal kidney biopsy was 3 years old. CONCLUSIONS We demonstrate that histological lesions, typical for FD, can be observed in kidney biopsies at a very young age in patients without classical clinical symptoms or laboratory abnormalities. Thus, we recommend kidney biopsies as a possible tool for early diagnosis of renal involvement in FD. As a consequence of these early biopsy findings without a clinical correlate, an early initiation of ERT should be considered. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Jenny Avarappattu
- Department of Metabolic Medicine and Department of Nephrology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Ariana Gaspert
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Giuseppina Spartà
- Department of Metabolic Medicine and Department of Nephrology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Marianne Rohrbach
- Department of Metabolic Medicine and Department of Nephrology, University Children's Hospital Zurich, Zurich, Switzerland.
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Smerkous D, Mauer M, Tøndel C, Svarstad E, Gubler MC, Nelson RG, Oliveira JP, Sargolzaeiaval F, Najafian B. Development of an automated estimation of foot process width using deep learning in kidney biopsies from patients with Fabry, minimal change, and diabetic kidney diseases. Kidney Int 2024; 105:165-176. [PMID: 37774924 PMCID: PMC10842003 DOI: 10.1016/j.kint.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023]
Abstract
Podocyte injury plays a key role in pathogenesis of many kidney diseases with increased podocyte foot process width (FPW), an important measure of podocyte injury. Unfortunately, there is no consensus on the best way to estimate FPW and unbiased stereology, the current gold standard, is time consuming and not widely available. To address this, we developed an automated FPW estimation technique using deep learning. A U-Net architecture variant model was trained to semantically segment the podocyte-glomerular basement membrane interface and filtration slits. Additionally, we employed a post-processing computer vision approach to accurately estimate FPW. A custom segmentation utility was also created to manually classify these structures on digital electron microscopy (EM) images and to prepare a training dataset. The model was applied to EM images of kidney biopsies from 56 patients with Fabry disease, 15 with type 2 diabetes, 10 with minimal change disease, and 17 normal individuals. The results were compared with unbiased stereology measurements performed by expert technicians unaware of the clinical information. FPW measured by deep learning and by the expert technicians were highly correlated and not statistically different in any of the studied groups. A Bland-Altman plot confirmed interchangeability of the methods. FPW measurement time per biopsy was substantially reduced by deep learning. Thus, we have developed a novel validated deep learning model for FPW measurement on EM images. The model is accessible through a cloud-based application making calculation of this important biomarker more widely accessible for research and clinical applications.
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Affiliation(s)
- David Smerkous
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA; Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, Washington, USA
| | - Michael Mauer
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA; Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Camilla Tøndel
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway; Institute of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Einar Svarstad
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Marie-Claire Gubler
- INSERM U1163, Imagine Institute, Necker-Enfants Malades Hospital, Paris, France
| | - Robert G Nelson
- Chronic Kidney Disease Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona, USA
| | - João-Paulo Oliveira
- Service of Medical Genetics, São João University Hospital; Department of Medical Genetics, Faculty of Medicine and i3S-Institute for Research and Innovation in Health, University of Porto, Porto, Portugal
| | - Forough Sargolzaeiaval
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Behzad Najafian
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA.
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Chang FP, Hsu TR, Hung SC, Sung SH, Yu WC, Niu DM, Najafian B. Cardiomyocyte Globotriaosylceramide Accumulation in Adult Male Patients with Fabry Disease and IVS4 + 919G>A GLA Mutation is Progressive with Age and Correlates with Left Ventricular Hypertrophy and Reduced Left Ventricular Ejection Fraction. medRxiv 2023:2023.12.09.23298489. [PMID: 38168318 PMCID: PMC10760261 DOI: 10.1101/2023.12.09.23298489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Background While cardiovascular complications are the most common cause of mortality in Fabry disease, the relationship between globotriaosylceramide (GL-3) accumulation, the hallmark of Fabry cardiomyopathy, and cardiac hypertrophy has not been fully elucidated. Methods We developed unbiased stereology protocols to quantify the ultrastrcture of Fabry cardiomyopathy. Endomyocardial biopsies from 10 adult male enzyme replacement therapy naïve Fabry patients with IVS4 + 919G>A GLA mutation were studied. The findings were correlated with cardiac MRI and clinical data. Results Ultrastructural parameters showed significant relationships with key imaging and clinical and functional variables. Average cardiomyocyte volume and GL-3 volume per cardiomyocyte were progressively increased with age. Eighty-four percent of left ventricular mass index (LVMI) variability was explained by cardiomyocyte nuclear volume, age and plasma globotriaosylsphingosine with cardiomyocyte nuclear volume being the only independent predictor of LVMI. Septal thickness was directly and left ventricular ejection fraction (LVEF) was inversely correlated with cardiomyocyte GL-3 accumulation. Sixty-five percent of left ventricular ejection fraction (LVEF) variability was explained by cardiomyocyte GL3 volume, serum α-galactosidase-A activity and age with cardiomyocyte GL3 volume being the only independent predictor of LVEF. Residual α-galactosidase-A activity was directly correlated with myocardial microvasculature density. Conclusions The unbiased stereological methods introduced in this study unraveled novel relationships between cardiomyocyte structure and important imaging and clinical parameters. These novel tools can help better understand Fabry cardiomyopathy pathophysiology.
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Affiliation(s)
- Fu-Pang Chang
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ting-Rong Hsu
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Sheng-Che Hung
- Division of Neuroradiology, Department of Radiology, University of North Carolina Chapel Hill, North Carolina, USA
- Biomedical Research Imaging Center, University of North Carolina Chapel Hill, North Carolina, USA
| | - Shih-Hsien Sung
- Department of Internal Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wen-Chung Yu
- Department of Internal Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Dau-Ming Niu
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Behzad Najafian
- Department of Laboratory Medicine & Pathology, University of Washington, Seattle, USA
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Burlina A, Brand E, Hughes D, Kantola I, Krӓmer J, Nowak A, Tøndel C, Wanner C, Spada M. An expert consensus on the recommendations for the use of biomarkers in Fabry disease. Mol Genet Metab 2023; 139:107585. [PMID: 37207471 DOI: 10.1016/j.ymgme.2023.107585] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/04/2023] [Accepted: 04/14/2023] [Indexed: 05/21/2023]
Abstract
Fabry disease is an X-linked lysosomal storage disorder caused by the accumulation of glycosphingolipids in various tissues and body fluids, leading to progressive organ damage and life-threatening complications. Phenotypic classification is based on disease progression and severity and can be used to predict outcomes. Patients with a classic Fabry phenotype have little to no residual α-Gal A activity and have widespread organ involvement, whereas patients with a later-onset phenotype have residual α-Gal A activity and disease progression can be limited to a single organ, often the heart. Diagnosis and monitoring of patients with Fabry disease should therefore be individualized, and biomarkers are available to support with this. Disease-specific biomarkers are useful in the diagnosis of Fabry disease; non-disease-specific biomarkers may be useful to assess organ damage. For most biomarkers it can be challenging to prove they translate to differences in the risk of clinical events associated with Fabry disease. Therefore, careful monitoring of treatment outcomes and collection of prospective data in patients are needed. As we deepen our understanding of Fabry disease, it is important to regularly re-evaluate and appraise published evidence relating to biomarkers. In this article, we present the results of a literature review of evidence published between February 2017 and July 2020 on the impact of disease-specific treatment on biomarkers and provide an expert consensus on clinical recommendations for the use of those biomarkers.
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Affiliation(s)
- Alessandro Burlina
- Neurological Unit, St. Bassiano Hospital, Via dei Lotti 40, I-36061 Bassano del Grappa, Italy.
| | - Eva Brand
- Internal Medicine, Department of Nephrology, Hypertension and Rheumatology; Interdisciplinary Fabry Center Münster (IFAZ), University Hospital Münster, Münster, Germany
| | - Derralynn Hughes
- Lysosomal Storage Disorders Unit, Royal Free London NHS Foundation Trust, University College London, United Kingdom
| | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, Turku, Finland
| | - Johannes Krӓmer
- Pediatric Neurology and Metabolism, Department of Pediatrics and Adolescent Medicine, University of Ulm, Ulm, Germany
| | - Albina Nowak
- Department of Endocrinology and Clinical Nutrition, University Hospital of Zurich, Zurich, Switzerland
| | - Camilla Tøndel
- Department of Clinical Science, University of Bergen and Department of Paediatrics, Haukeland University Hospital, Bergen, Norway
| | - Christoph Wanner
- Department of Internal Medicine, Division of Nephrology, Fabry Center for Interdisciplinary Therapy (FAZIT), University Hospital of Würzburg, Würzburg, Germany
| | - Marco Spada
- Department of Pediatrics, University of Torino, Torino, Italy
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Hustinx M, Shorrocks AM, Servais L. Novel Therapeutic Approaches in Inherited Neuropathies: A Systematic Review. Pharmaceutics 2023; 15:1626. [PMID: 37376074 DOI: 10.3390/pharmaceutics15061626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/17/2023] [Accepted: 05/27/2023] [Indexed: 06/29/2023] Open
Abstract
The management of inherited neuropathies relies mostly on the treatment of symptoms. In recent years, a better understanding of the pathogenic mechanisms that underlie neuropathies has allowed for the development of disease-modifying therapies. Here, we systematically review the therapies that have emerged in this field over the last five years. An updated list of diseases with peripheral neuropathy as a clinical feature was created based on panels of genes used clinically to diagnose inherited neuropathy. This list was extended by an analysis of published data by the authors and verified by two experts. A comprehensive search for studies of human patients suffering from one of the diseases in our list yielded 28 studies that assessed neuropathy as a primary or secondary outcome. Although the use of various scales and scoring systems made comparisons difficult, this analysis identified diseases associated with neuropathy for which approved therapies exist. An important finding is that the symptoms and/or biomarkers of neuropathies were assessed only in a minority of cases. Therefore, further investigation of treatment efficacy on neuropathies in future trials must employ objective, consistent methods such as wearable technologies, motor unit indexes, MRI or sonography imaging, or the use of blood biomarkers associated with consistent nerve conduction studies.
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Affiliation(s)
- Manon Hustinx
- Department of Paediatrics, MDUK Oxford Neuromuscular Centre and, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford OX1 3DW, UK
- Centre de Référence des Maladies Neuromusculaires, Department of Neurology, University Hospital Liège, and University of Liège, 4000 Liège, Belgium
| | - Ann-Marie Shorrocks
- Department of Paediatrics, MDUK Oxford Neuromuscular Centre and, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford OX1 3DW, UK
| | - Laurent Servais
- Department of Paediatrics, MDUK Oxford Neuromuscular Centre and, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford OX1 3DW, UK
- Centre de Référence des Maladies Neuromusculaires, Department of Paediatrics, University Hospital Liège, and University of Liège, 4000 Liège, Belgium
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8
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Besekar SM, Jogdand SD, Naqvi WM. Fabry Disease and Its Management: A Literature Analysis. Cureus 2023; 15:e37048. [PMID: 37153259 PMCID: PMC10154914 DOI: 10.7759/cureus.37048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023] Open
Abstract
A review was conducted to evaluate interventional therapy for Fabry disease. Fabry disease is a multisystemic X-linked storage disorder that affects the entire body and needs to be treated at an early age. The search was conducted using keywords such as "Fabry disease" and "Management" to review the databases. Seven studies were chosen from the 90 studies, and it was discovered that migalastat and enzyme replacement medication were successful in treating the condition, whereas agalsidase beta failed to have a positive effect on the patient. However, this analysis produced ambiguous conclusions. As only a small number of studies were included in the analysis, additional investigations and evaluations based on randomized controlled trials and case studies are required to determine potential drug-related outcomes. There is a need for future therapeutic research to cure genetically affected illnesses and diseases such as Fabry disease.
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Hopkin RJ, Cabrera GH, Jefferies JL, Yang M, Ponce E, Brand E, Feldt-Rasmussen U, Germain DP, Guffon N, Jovanovic A, Kantola I, Karaa A, Martins AM, Tøndel C, Wilcox WR, Yoo HW, Burlina AP, Mauer M. Clinical outcomes among young patients with Fabry disease who initiated agalsidase beta treatment before 30 years of age: An analysis from the Fabry Registry. Mol Genet Metab 2023; 138:106967. [PMID: 36709533 DOI: 10.1016/j.ymgme.2022.106967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 11/26/2022] [Accepted: 11/26/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND Clinical manifestations of classic Fabry disease (α-galactosidase A deficiency) usually occur in childhood, while complications involving major organs typically develop in adulthood. Outcomes of Fabry-specific treatment among young patients have not been extensively reported. Our aim was to analyze clinical outcomes among patients aged 5-30 years at initiation of treatment with agalsidase beta using data from the Fabry Registry (NCT00196742, sponsor: Sanofi). METHODS Reported GLA variants were predicted to be associated with the classic phenotype or not classified in fabry-database.org. Linear mixed models were conducted to assess changes over ≥2-year follow-up in the estimated glomerular filtration rate (eGFR) stratified by low (LRI) and high (HRI) renal involvement (defined by proteinuria/albuminuria levels), and changes in interventricular septal thickness (IVST) and left ventricular posterior wall thickness (LVPWT) Z-scores stratified by median age at first treatment. Self-reports ('yes'/'no') of abdominal pain, diarrhea, chronic peripheral pain (denoting neuropathic pain), and acute pain crises at baseline were compared with reports after ≥0.5-year and ≥2.5-year follow-up using McNemar's test. RESULTS Male (n = 117) and female patients (n = 59) with LRI initiated treatment at a median age of 19.9 and 23.6 years, respectively, and were followed for a median of 6.3 and 5.0 years, respectively. The eGFR slopes were -1.18 (Pfrom 0 <0.001) and -0.92 mL/min/1.73 m2/year (Pfrom 0 = 0.040), respectively. Males with HRI (n = 23, median UPCR 1.0 g/g), who started treatment at a median age of 26.7 years, had an eGFR slope of -2.39 mL/min/1.73 m2/year (Pfrom 0 <0.001; Pdifference = 0.055, as compared with the slope of -1.18 mL/min/1.73 m2/year for LRI males) during a median follow-up of 5.6 years. Echocardiographic variables were stable among males, regardless of age, and among young females (median follow-up >5.5 years and ≥4.5 years, respectively). Older females (treatment initiation at median age 27.5 years) had a slope of LVPWT Z-scores of 0.18/year (n = 12, Pfrom 0 = 0.028), whereas IVST Z-scores remained stable (n = 13, 0.10/year, Pfrom 0 = 0.304) during a median follow-up of ≥3.7 years. These slopes did not significantly differ from slopes of younger females. Reports of chronic peripheral pain and acute pain crises by males, and of diarrhea and acute pain crises by females, significantly reduced after a median follow-up of ≥4.0 years. After a median follow-up of ≥5.4 years, reports of all four symptoms significantly decreased among males, whereas among females only reports of abdominal pain significantly decreased. CONCLUSIONS During sustained treatment with agalsidase beta in young Fabry patients with a predicted classic phenotype or with unclassified GLA variants with similar characteristics, the decline in eGFR was modest among male and female patients with LRI. The greater decline in eGFR among older, proteinuric (i.e., HRI) males may suggest a benefit of earlier treatment. Overall, echocardiographic variables remained stable, particularly among males and younger females. Significant reductions in symptom reports occurred primarily among males after longer follow-up and were less noticeable among females. These observed trends are suggestive of an overall improvement after treatment in young patients, but warrant larger longitudinal studies.
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Affiliation(s)
- Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | | | - John L Jefferies
- The Cardiovascular Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | | | | | - Eva Brand
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Münster, Münster, Germany
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, and Department of Clinical Medicine, Faculty of Health and Clinical Sciences, Copenhagen University, Copenhagen, Denmark
| | - Dominique P Germain
- French Referral Center for Fabry disease, Division of Medical Genetics, University of Versailles and APHP - Paris Saclay University, Garches, France
| | - Nathalie Guffon
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Femme Mère Enfant, Bron Cedex, France
| | - Ana Jovanovic
- Mark Holland Metabolic Unit, Salford Royal NHS Foundation Trust, Salford, UK
| | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, University of Turku, Turku, Finland
| | - Amel Karaa
- Department of Genetics, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ana M Martins
- Reference Center for Inborn Errors of Metabolism, Federal University of São Paulo, São Paulo, Brazil
| | - Camilla Tøndel
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway, and Department of Clinical Science, University of Bergen, Bergen, Norway
| | - William R Wilcox
- Division of Medical Genetics, Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Han-Wook Yoo
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | | | - Michael Mauer
- Departments of Pediatrics and Medicine, University of Minnesota, Minneapolis, MN, USA
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Tøndel C, Thurberg BL, DasMahapatra P, Lyn N, Maski M, Batista JL, George K, Patel H, Hariri A. Clinical relevance of globotriaosylceramide accumulation in Fabry disease and the effect of agalsidase beta in affected tissues. Mol Genet Metab 2022; 137:328-341. [PMID: 36334424 DOI: 10.1016/j.ymgme.2022.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
Fabry disease (FD) is a rare lysosomal storage disorder, characterized by a reduction in α-galactosidase A enzyme activity and the progressive accumulation of globotriaosylceramide (GL3) and its metabolites in the cells of various organs. Agalsidase beta, an enzyme replacement therapy (ERT), is approved for use in patients with FD in Europe, Canada, Australia, South America, and Asia, and is the only ERT approved for use in the United States. In this review, we discuss the clinical relevance of GL3 accumulation, the effect of agalsidase beta on GL3 in target tissues, and the association between treatment-related tissue GL3 clearance and long-term structure, function, or clinical outcomes. Accumulation of GL3 in the kidney, heart, vasculature, neurons, skin, gastrointestinal tract and auditory system correlates to cellular damage and irreversible organ damage, as a result of sclerosis, fibrosis, apoptosis, inflammation, and endothelial dysfunction. Damage leads to renal dysfunction and end-stage renal disease; myocardial hypertrophy with heart failure and arrhythmias; ischemic stroke; neuropathic pain; skin lesions; intestinal ischemia and dysmotility; and hearing loss. Treatment with agalsidase beta is effective in substantially clearing GL3 in a range of cells from the tissues affected by FD. Agalsidase beta has also been shown to slow renal decline and lower the overall risk of clinical progression, demonstrating an indirect link between treatment-related GL3 clearance and stabilization of FD.
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Affiliation(s)
- Camilla Tøndel
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway; Department of Clinical Science, University of Bergen, Bergen, Norway.
| | | | | | | | | | | | - Kelly George
- Metabolic and Lysosomal Storage Disease Research, Rare and Neurological Diseases Therapeutic Area, Sanofi, Cambridge, MA, USA
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Frustaci A, Verardo R, Scialla R, Bagnato G, Verardo M, Alfarano M, Russo MA. Downregulation of Mannose-6-Phosphate Receptors in Fabry Disease Cardiomyopathy: A Potential Target for Enzyme Therapy Enhancement. J Clin Med 2022; 11. [PMID: 36143092 DOI: 10.3390/jcm11185440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/07/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Background: The efficacy of enzyme replacement therapy (ERT) in mobilizing globotryaosylceramide (GB-3) from Fabry cardiomyocytes is limited. The mechanism involved is still obscure. Methods: Assessment of M6Pr, M6Pr-mRNA, and Ubiquitin has been obtained by Western blot analysis and real-time PCR of frozen endomyocardial biopsy samples, from 17 pts with FD, various degree of left ventricular hypertrophy, and maximal wall thickening (MWT) from 11.5 and 20 mm. The diagnosis and severity of FDCM followed definitions of GLA mutation, α-galactosidase A enzyme activity, cardiac magnetic resonance, and left ventricular endomyocardial biopsy with the quantification of myocyte hypertrophy and the extent of Gb-3 accumulation. All patients have received alpha or beta agalsidase for ≥3 years without a reduction in LV mass nor an increase in T1 mapping at CMR. Controls were surgical biopsies from 15 patients undergoing mitral valve replacement. Results: Protein analysis showed mean M6Pr in FDCM to be 5.4-fold lower than in a normal heart (4289 ± 6595 vs. 23,581 ± 4074, p = 0.0996) (p < 0.001): specifically, 9-fold lower in males, p = 0.009, (p < 0.001) and 3-fold lower in females, p = 0.5799, (p < 0.001) showing, at histology, a mosaic of normal and diseased cells. M6Pr-mRNA expression was normal, while ubiquitin showed an increase of 4.6 fold vs. controls (13,284 ± 1723 vs. 2870 ± 690, p = 0.001) suggesting that ubiquitin-dependent post-translational degradation is likely responsible for the reduction of M6Pr in FDCM. Conclusion: M6Pr expression is remarkably reduced in FDCM as a likely result of post-translational degradation. This may explain the reduced efficacy of ERT and be a therapeutic target for the enhancement of ERT activity.
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Abstract
Determining the etiologies of left ventricular hypertrophy (LVH) can be challenging due to the similarities of the different manifestations in clinical presentation and morphological features. Depending on the underlying cause, not only left ventricular mass but also left ventricular cavity size, or both, may increase. Patients with LVH remain asymptomatic for a few years, but disease progression will lead to the development of systolic or diastolic dysfunction and end-stage heart failure. As hypertrophied cardiac muscle disrupts normal conduction, LVH predisposes to arrhythmias. Distinguishing individuals with treatable causes of LVH is important for prevention of cardiovascular events and mortality. Athletic’s heart with physiological LVH does not require treatment. Frequent causes of hypertrophy include etiologies due to pressure/volume overload, such as systemic hypertension, hypertrophic cardiomyopathy, or infiltrative cardiac processes such as amyloidosis, Fabry disease, and sarcoidosis. Hypertension and aortic valve stenosis are the most common causes of LVH. Management of LVH involves lifestyle changes, medications, surgery, and implantable devices. In this review we systematically summarize treatments for the different patterns of cardiac hypertrophy and their impacts on outcomes while informing clinicians on advances in the treatment of LVH due to Fabry disease, cardiac amyloidosis, and hypertrophic cardiomyopathy.
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Affiliation(s)
| | - Ali Oto
- Department of Cardiology, Memorial Ankara Hospital, Ankara, Turkey
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13
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Frustaci A, Najafian B, Donato G, Verardo R, Chimenti C, Sansone L, Belli M, Vernucci E, Russo MA. Divergent Impact of Enzyme Replacement Therapy on Human Cardiomyocytes and Enterocytes Affected by Fabry Disease: Correlation with Mannose-6-phosphate Receptor Expression. J Clin Med 2022; 11:jcm11051344. [PMID: 35268433 PMCID: PMC8911518 DOI: 10.3390/jcm11051344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 02/05/2023] Open
Abstract
Background: The impact of enzyme replacement therapy (ERT) on cardiomyocytes and intestinal cells, affected by Fabry disease (FD), is still unclear. Methods: Six patients with FD, including five family members with GLA mutation c.666delC and one with GLA mutation c.658C > T, manifesting cardiomyopathy and intestinal symptoms (abdominal pain, diarrhea and malabsorption) were included in the study. Clinical outcome, cardiac magnetic resonance (CMR), endomyocardial and gastro-intestinal biopsies were evaluated before and after 2 years of treatment with agalsidase-α (0.2 mg/kg every other week). Immunohistochemistry and Western blot assessments of mannose-6-phosphate receptors (IGF-II-R) on intestinal and myocardial frozen tissue were obtained at diagnosis and after 2 years of ERT. Results: After ERT left ventricular maximal wall thickness, ranging from pre (<10.5 mm) to mild (<15 mm) and moderate hypertrophy (16 mm), was not associated with significant changes at CMR. Degree of dyspnea, mean cardiomyocyte diameter and % vacuolated areas of cardiomyocytes, representing intracellular GL3, remained unmodified. In contrast, intestinal symptoms improved with disappearance of diarrhea, recovery of anemia and weight gain, correlating with near complete clearance of the enterocytes from GL3 inclusions. IGF-II-R expression was remarkably higher even at histochemistry in intestinal tissue compared with myocardium (p < 0.001) either at baseline and after ERT, thus justifying intestinal recovery. Conclusions: Human cells affected by FD may respond differently to ERT: while cardiomyocytes retain their GL3 content after 2 years of treatment, gastro-intestinal cells show GL3 removal with recovery of function. This divergent response may be related to differences in cellular turnover, as well as tissue IGF-II-R expression.
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Affiliation(s)
- Andrea Frustaci
- Department of Clinical, Internal, Anesthesiologist and Cardiovascular Sciences, La Sapienza University, 00100 Rome, Italy; (C.C.); (E.V.)
- Cellular and Molecular Cardiology Laboratory, IRCCS L. Spallanzani, 00149 Rome, Italy;
- Correspondence:
| | - Behzad Najafian
- Department of Pathology, University of Washington, Seattle, WA 98195, USA;
| | - Giuseppe Donato
- Department of Translational and Precision Medicine, La Sapienza University, 00100 Rome, Italy;
| | - Romina Verardo
- Cellular and Molecular Cardiology Laboratory, IRCCS L. Spallanzani, 00149 Rome, Italy;
| | - Cristina Chimenti
- Department of Clinical, Internal, Anesthesiologist and Cardiovascular Sciences, La Sapienza University, 00100 Rome, Italy; (C.C.); (E.V.)
- Cellular and Molecular Cardiology Laboratory, IRCCS L. Spallanzani, 00149 Rome, Italy;
| | - Luigi Sansone
- Laboratory of Molecular and Cellular Pathology, IRCCS San Raffaele Pisana, 88163 Rome, Italy; (L.S.); (M.B.)
| | - Manuel Belli
- Laboratory of Molecular and Cellular Pathology, IRCCS San Raffaele Pisana, 88163 Rome, Italy; (L.S.); (M.B.)
| | - Enza Vernucci
- Department of Clinical, Internal, Anesthesiologist and Cardiovascular Sciences, La Sapienza University, 00100 Rome, Italy; (C.C.); (E.V.)
- Laboratory of Molecular and Cellular Pathology, IRCCS San Raffaele Pisana, 88163 Rome, Italy; (L.S.); (M.B.)
| | - Matteo Antonio Russo
- MEBIC Consortium, San Raffaele Open University, 00166 Rome, Italy;
- IRCCS San Raffaele Pisana, 88163 Rome, Italy
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Vaisbich MH, Andrade LGMD, Silva CAB, Barreto FDC. Recommendations for the diagnosis and management of Fabry disease in pediatric patients: a document from the Rare Diseases Committee of the Brazilian Society of Nephrology (Comdora-SBN). J Bras Nefrol 2022; 44:268-280. [PMID: 35238862 PMCID: PMC9269176 DOI: 10.1590/2175-8239-jbn-2021-0216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 01/04/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Fabry disease (FD) is a genetic disease, with X-chromosome linked inheritance, due to variants in the GLA gene that encodes the α-galactosidase A (α-GAL) enzyme. The purpose of the present study was to create a consensus aiming to standardize the recommendations regarding the renal involvement of FD with guidelines on the diagnosis, screening, and treatment of pediatric patients. This consensus is an initiative of the Rare Diseases Committee (Comdora) of the Brazilian Society of Nephrology (SBN). Randomized controlled clinical studies and studies with real-life data added to the authors' experience were considered for this review. The result of this consensus was to help manage patient and physician expectations regarding treatment outcomes. Thus, this consensus document recommends the investigation of the pediatric family members of an index case, as well as cases with suggestive clinical signs. From the diagnosis, assess all possible FD impairments and grade through scales. From an extensive review of the literature including pediatric protocols and particularly evaluating pediatric cases from general studies, it can be concluded that the benefits of early treatment are great, especially in terms of neuropathic pain and renal impairment parameters and outweigh the possible adverse effects that were mainly manifested by infusion reactions.
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15
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van der Veen SJ, Körver S, Hirsch A, Hollak CEM, Wijburg FA, Brands MM, Tøndel C, van Kuilenburg ABP, Langeveld M. Early start of enzyme replacement therapy in pediatric male patients with classical Fabry disease is associated with attenuated disease progression. Mol Genet Metab 2022; 135:163-169. [PMID: 35033446 DOI: 10.1016/j.ymgme.2021.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/12/2021] [Accepted: 12/13/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Enzyme replacement therapy (ERT) slows disease progression of Fabry disease (FD), especially when initiated before the onset of irreversible organ damage. However, with the clinically asymptomatic progression of renal, cardiac and cerebral disease manifestations spanning decades, optimal timing of ERT initiation remains unclear. METHODS In this cross-sectional retrospective study, seven male FD patients with a classical disease phenotype (cFD) who started treatment with agalsidase-beta in childhood were evaluated after 10 years of treatment (median age at evaluation 24 years, range 14-26). Cardiac imaging (echocardiography and MRI), electrophysiological and biochemical data of these patients were compared to those of untreated male cFD patients (n = 23, median age 22 years, range 13-27). RESULTS Albuminuria was less common and less severe in treated patients (albumin to creatinine ratio, ACR 0-8.8 mg/mmol, median 0.4) compared to untreated patients (ACR 0-248 mg/mmol, median 3.7, p = 0.02). The treated group had a lower left ventricular mass, measured using echocardiography (median 80 g/m2 versus 94 g/m2, p = 0.02) and MRI (median 53 g/m2 versus 68 g/m2, p = 0.02). Myocardial fibrosis was absent in all included patients. eGFR was normal in all treated patients whereas 7/23 (30%) of untreated patients had abnormal eGFR. Cerebral manifestations did not differ. CONCLUSIONS Start of treatment with ERT before age 16, in male cFD patients is associated with reduced occurrence of renal and cardiac manifestations of FD, as assessed by intermediate endpoints. Confirmation that this approach delays or even prevents renal failure and cardiac events requires another decade of follow-up.
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Affiliation(s)
- S J van der Veen
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - S Körver
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - A Hirsch
- Department of Cardiology and Radiology and Nuclear Medicine, Erasmus MC, University Medical Center Rotterdam, Room Rg-419, P.O. Box 2040, 3000 CA Rotterdam, the Netherlands
| | - C E M Hollak
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - F A Wijburg
- Amsterdam UMC, University of Amsterdam, Department of Pediatric Metabolic Diseases, Emma Children's Hospital, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - M M Brands
- Amsterdam UMC, University of Amsterdam, Department of Pediatric Metabolic Diseases, Emma Children's Hospital, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - C Tøndel
- Haukeland University Hospital, Department of Paediatrics and University of Bergen, Department of Clinical Medicine, Bergen, Norway
| | - A B P van Kuilenburg
- Amsterdam UMC, University of Amsterdam, Department of Clinical Chemistry, Gastroenterology & Metabolism, Laboratory Genetic Metabolic Diseases, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - M Langeveld
- Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Amsterdam Lysosome Center "Sphinx", Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
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16
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Hughes DA, Aguiar P, Deegan PB, Ezgu F, Frustaci A, Lidove O, Linhart A, Lubanda JC, Moon JC, Nicholls K, Niu DM, Nowak A, Ramaswami U, Reisin R, Rozenfeld P, Schiffmann R, Svarstad E, Thomas M, Torra R, Vujkovac B, Warnock DG, West ML, Johnson J, Rolfe MJ, Feriozzi S. Early indicators of disease progression in Fabry disease that may indicate the need for disease-specific treatment initiation: findings from the opinion-based PREDICT-FD modified Delphi consensus initiative. BMJ Open 2020; 10:e035182. [PMID: 33039984 PMCID: PMC7549469 DOI: 10.1136/bmjopen-2019-035182] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES The PRoposing Early Disease Indicators for Clinical Tracking in Fabry Disease (PREDICT-FD) initiative aimed to reach consensus among a panel of global experts on early indicators of disease progression that may justify FD-specific treatment initiation. DESIGN AND SETTING Anonymous feedback from panellists via online questionnaires was analysed using a modified Delphi consensus technique. Questionnaires and data were managed by an independent administrator directed by two non-voting cochairs. First, possible early indicators of renal, cardiac and central/peripheral nervous system (CNS/PNS) damage, and other disease and patient-reported indicators assessable in routine clinical practice were compiled by the cochairs and administrator from panellists' free-text responses. Second, the panel scored indicators for importance (5-point scale: 1=not important; 5=extremely important); indicators scoring ≥3 among >75% of panellists were then rated for agreement (5-point scale: 1=strongly disagree; 5=strongly agree). Indicators awarded an agreement score ≥4 by >67% of panellists achieved consensus. Finally, any panel-proposed refinements to consensus indicator definitions were adopted if >75% of panellists agreed. RESULTS A panel of 21 expert clinicians from 15 countries provided information from which 83 possible current indicators of damage (kidney, 15; cardiac, 15; CNS/PNS, 13; other, 16; patient reported, 24) were compiled. Of 45 indicators meeting the importance criteria, consensus was reached for 29 and consolidated as 27 indicators (kidney, 6; cardiac, 10; CNS/PNS, 2; other, 6; patient reported, 3) including: (kidney) elevated albumin:creatinine ratio, histological damage, microalbuminuria; (cardiac) markers of early systolic/diastolic dysfunction, elevated serum cardiac troponin; (CNS/PNS) neuropathic pain, gastrointestinal symptoms suggestive of gastrointestinal neuropathy; (other) pain in extremities/neuropathy, angiokeratoma; (patient-reported) febrile crises, progression of symptoms/signs. Panellists revised and approved proposed chronologies of when the consensus indicators manifest. The panel response rate was >95% at all stages. CONCLUSIONS PREDICT-FD captured global opinion regarding current clinical indicators that could prompt FD-specific treatment initiation earlier than is currently practised.
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Affiliation(s)
- Derralynn A Hughes
- Lysosomal Storage Disorders Unit, Royal Free Hospital, London, UK
- Department of Haematology, University College London, London, UK
| | - Patricio Aguiar
- Inborn Errors of Metabolism Reference Center, North Lisbon Hospital Center, Lisbon, Portugal
- Medicine Department, University of Lisbon, Lisbon, Portugal
| | - Patrick B Deegan
- Lysosomal Disorders Unit, Addenbrooke's Hospital, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Fatih Ezgu
- Department and Laboratory of Paediatric Metabolic Disorders, Gazi University, Ankara, Turkey
| | - Andrea Frustaci
- Department of Cardiovascular, Respiratory, Nephrologic, Geriatric and Anesthesiologic Sciences, University of Rome La Sapienza, Rome, Italy
| | - Olivier Lidove
- Department of Internal Medicine-Rheumatology, Croix Saint Simon Hospital, Paris, France
| | - Aleš Linhart
- Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Jean-Claude Lubanda
- Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - James C Moon
- Cardiac Imaging Department, Barts Heart Centre, London, UK
| | - Kathleen Nicholls
- Department of Nephrology, Royal Melbourne Hospital, Parkville, Victoria, Australia
- Department of Medicine, The University of Melbourne - Parkville Campus, Melbourne, Victoria, Australia
| | - Dau-Ming Niu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Albina Nowak
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich and University of Zurich, Zurich, Switzerland
- Department of Internal Medicine, Psychiatry University Hospital Zurich, Zurich, Switzerland
| | - Uma Ramaswami
- Lysosomal Storage Disorders Unit, Royal Free Hospital, London, UK
| | - Ricardo Reisin
- Department of Neurology, British Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Paula Rozenfeld
- Instituto de Estudios Inmunológicos y Fisiopatológicos, UNLP - CONICET, La Plata, Argentina
| | - Raphael Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, Dallas, Texas, USA
| | - Einar Svarstad
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Department of Medicine, Haukeland University Hospital, Bergen, Norway
| | - Mark Thomas
- Department of Nephrology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Roser Torra
- Inherited Renal Diseases Unit, Autonomous University of Barcelona, Barcelona, Spain
| | - Bojan Vujkovac
- Department of Internal Medicine, General Hospital Slovenj Gradec, Slovenj Gradec, Slovenia
| | - David G Warnock
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Michael L West
- Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Jack Johnson
- Fabry Support & Information Group, Concordia, Missouri, USA
- Fabry International Network, Beveren, Belgium
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Levstek T, Vujkovac B, Trebusak Podkrajsek K. Biomarkers of Fabry Nephropathy: Review and Future Perspective. Genes (Basel) 2020; 11:genes11091091. [PMID: 32962051 PMCID: PMC7564978 DOI: 10.3390/genes11091091] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/09/2020] [Accepted: 09/16/2020] [Indexed: 12/22/2022] Open
Abstract
Progressive nephropathy is one of the main features of Fabry disease, which largely contributes to the overall morbidity and mortality burden of the disease. Due to the lack of specific biomarkers, the heterogeneity of the disease, and unspecific symptoms, diagnosis is often delayed. Clinical presentation in individual patients varies widely, even in patients from the same family carrying the same pathogenic GLA variant. Therefore, it is reasonable to anticipate that additional genomic, transcriptomic, proteomic, and metabolomics factors influence the manifestation and progression of the disease. The aim of this article is to provide an overview of nephropathy in Fabry patients and the biomarkers currently used in the diagnosis and follow-up. Current biomarkers are associated with late signs of kidney damage. Therefore, there is a need to identify biomarkers associated with early stages of kidney damage that would enable early diagnosis, which is crucial for effective treatment and prevention of severe irreversible complications. Recent advances in sequencing and -omics technologies have led to several studies investigating new biomarkers. We will provide an overview of the novel biomarkers, critically evaluate their clinical utility, and propose future perspectives, which we believe might be in their integration.
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Affiliation(s)
- Tina Levstek
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia;
| | - Bojan Vujkovac
- Centre for Fabry Disease, General Hospital Slovenj Gradec, Gosposvetska cesta 1, 2380 Slovenj Gradec, Slovenia;
| | - Katarina Trebusak Podkrajsek
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia;
- Clinical Institute for Special Laboratory Diagnostics, University Children’s Hospital, University Medical Centre Ljubljana, Vrazov trg 1, 1000 Ljubljana, Slovenia
- Correspondence:
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18
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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van der Veen SJ, Vlietstra WJ, van Dussen L, van Kuilenburg AB, Dijkgraaf MGW, Lenders M, Brand E, Wanner C, Hughes D, Elliott PM, Hollak CEM, Langeveld M. Predicting the Development of Anti-Drug Antibodies against Recombinant alpha-Galactosidase A in Male Patients with Classical Fabry Disease. Int J Mol Sci 2020; 21:5784. [PMID: 32806627 PMCID: PMC7460974 DOI: 10.3390/ijms21165784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [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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Datta S, Rajnish KN, George Priya Doss C, Melvin Samuel S, Selvarajan E, Zayed H. Enzyme therapy: a forerunner in catalyzing a healthy society? Expert Opin Biol Ther 2020; 20:1151-1174. [PMID: 32597245 DOI: 10.1080/14712598.2020.1787980] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The use of enzymes in various industries has been prevalent for centuries. However, their potency as therapeutics remained latent until the late 1950 s, when scientists finally realized the gold mine they were sitting on. Enzyme therapy has seen rapid development over the past few decades and has been widely used for the therapy of myriad diseases, including lysosomal storage disorders, cancer, Alzheimer's disease, irritable bowel syndrome, exocrine pancreatic insufficiency, and hyperuricemia. Enzymes are also used for wound healing, the treatment of microbial infections, and gene therapy. AREAS COVERED This is a comprehensive review of the therapeutic use of enzymes that can act as a guidepost for researchers and academicians and presents a general overview of the developments in enzyme therapy over the years, along with updates on recent advancements in enzyme therapy research. EXPERT OPINION Although enzyme therapy is immensely beneficial and induces little auxiliary damage, it has several drawbacks, ranging from high cost, low stability, low production, and hyperimmune responses to the failure to cure a variety of the problems associated with a disease. Further fine-tuning and additional clinical efficacy studies are required to establish enzyme therapy as a forerunner to catalyzing a healthy society.
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Affiliation(s)
- Saptashwa Datta
- Department of Genetic Engineering, School of Bioengineering, SRM Institute of Science and Technology , Kattankulathur, TN, India
| | - K Narayanan Rajnish
- Department of Genetic Engineering, School of Bioengineering, SRM Institute of Science and Technology , Kattankulathur, TN, India
| | - C George Priya Doss
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology , Vellore, TN, India
| | - S Melvin Samuel
- Materials Science and Engineering, University of Wisconsin-Milwaukee , Milwaukee, WI, United States
| | - E Selvarajan
- Department of Genetic Engineering, School of Bioengineering, SRM Institute of Science and Technology , Kattankulathur, TN, India
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health and Sciences, QU Health, Qatar University , Doha, Qatar
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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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Najafian B, Tøndel C, Svarstad E, Gubler MC, Oliveira JP, Mauer M. Accumulation of Globotriaosylceramide in Podocytes in Fabry Nephropathy Is Associated with Progressive Podocyte Loss. J Am Soc Nephrol 2020; 31:865-875. [PMID: 32127409 DOI: 10.1681/asn.2019050497] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 01/06/2020] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND In males with classic Fabry disease, the processes leading to the frequent outcome of ESKD are poorly understood. Defects in the gene encoding α-galactosidase A lead to accumulation of globotriaosylceramide (GL3) in various cell types. In the glomerular podocytes, accumulation of GL3 progresses with age. Of concern, podocytes are relatively resistant to enzyme replacement therapy and are poorly replicating, with little ability to compensate for cell loss. METHODS In this study of 55 males (mean age 27 years) with classic Fabry disease genotype and/or phenotype, we performed unbiased quantitative morphometric electron microscopic studies of biopsied kidney samples from patients and seven living transplant donors (to serve as controls). We extracted clinical information from medical records and clinical trial databases. RESULTS Podocyte GL3 volume fraction (proportion of podocyte cytoplasm occupied by GL3) increased with age up to about age 27, suggesting that increasing podocyte GL3 volume fraction beyond a threshold may compromise survival of these cells. GL3 accumulation was associated with podocyte injury and loss, as evidenced by increased foot process width (a generally accepted structural marker of podocyte stress and injury) and with decreased podocyte number density per glomerular volume. Worsening podocyte structural parameters (increasing podocyte GL3 volume fraction and foot process width) was also associated with increasing urinary protein excretion-a strong prognosticator of adverse renal outcomes in Fabry disease-as well as with decreasing GFR. CONCLUSIONS Given the known association between podocyte loss and irreversible FSGS and global glomerulosclerosis, this study points to an important role for podocyte injury and loss in the progression of Fabry nephropathy and indicates a need for therapeutic intervention before critical podocyte loss occurs.
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Affiliation(s)
- Behzad Najafian
- Department of Pathology, University of Washington, Seattle, Washington;
| | - Camilla Tøndel
- Department of Pediatrics, Haukland University Hospital, Bergen, Norway.,Institute of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Einar Svarstad
- Institute of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Marie-Claire Gubler
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1163, Imagine Institute, Necker-Enfants Malades Hospital, Paris, France
| | - João-Paulo Oliveira
- Service of Medical Genetics, São João University Hospital, Porto, Portugal.,Department of Medical Genetics, Faculty of Medicine, i3S (Institute for Research and Innovation in Health), University of Porto, Porto, Portugal
| | - Michael Mauer
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota; and.,Department of Medicine, University of Minnesota, Minneapolis, Minnesota
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Miller JJ, Kanack AJ, Dahms NM. Progress in the understanding and treatment of Fabry disease. Biochim Biophys Acta Gen Subj 2019; 1864:129437. [PMID: 31526868 DOI: 10.1016/j.bbagen.2019.129437] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Fabry disease is caused by α-galactosidase A deficiency. Substrates of this lysosomal enzyme accumulate, resulting in cellular dysfunction. Patients experience neuropathic pain, kidney failure, heart disease, and strokes. SCOPE OF REVIEW The clinical picture and molecular features of Fabry disease are described, along with updates on disease mechanisms, animal models, and therapies. MAJOR CONCLUSIONS How the accumulation of α-galactosidase A substrates, mainly glycosphingolipids, leads to organ damage is incompletely understood. Enzyme replacement and chaperone therapies are clinically available to patients, while substrate reduction, mRNA-based, and gene therapies are on the horizon. Animal models exist to optimize these therapies and elucidate disease mechanisms for novel treatments. GENERAL SIGNIFICANCE Recent newborn screening studies demonstrate that Fabry disease is the most common lysosomal storage disease. As many countries now include Fabry disease in their screening panels, the number of identified patients is expected to increase significantly. Better knowledge of disease pathogenesis is needed to improve treatment options.
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Affiliation(s)
- James J Miller
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States of America
| | - Adam J Kanack
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States of America
| | - Nancy M Dahms
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, United States of America.
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