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Cordeiro RA, Rosa Neto NS, Giardini HAM. What should rheumatologists know about Gaucher disease and Fabry disease? Connecting the dots for an overview. Adv Rheumatol 2024; 64:22. [PMID: 38520029 DOI: 10.1186/s42358-024-00362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024] Open
Abstract
Gaucher and Fabry diseases are lysosomal storage disorders in which deficient enzyme activity leads to pathological accumulation of sphingolipids. These diseases have a broad phenotypic presentation. Musculoskeletal symptoms and pain complaints are frequently reported by patients. Thus, rheumatologists can be contacted by these patients, contributing to the correct diagnosis, earlier indication of appropriate treatment and improvement of their prognosis. This review describes important concepts about Gaucher and Fabry diseases that rheumatologists should understand to improve patients' quality of life and change the natural history of these diseases.
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Affiliation(s)
- Rafael Alves Cordeiro
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Av Dr Arnaldo, 455, 3 andar, sala 3184, Cerqueira Cesar, Sao Paulo, SP, CEP 01246-903, Brazil.
| | - Nilton Salles Rosa Neto
- Centro de Doenças Raras e da Imunidade, Hospital Nove de Julho, São Paulo, Brazil
- Universidade Santo Amaro, São Paulo, Brazil
| | - Henrique Ayres Mayrink Giardini
- Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Av Dr Arnaldo, 455, 3 andar, sala 3184, Cerqueira Cesar, Sao Paulo, SP, CEP 01246-903, Brazil
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2
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Li P, Xi Y, Zhang Y, Samad A, Lan W, Wu Y, Zhao J, Chen G, Wu C, Xiong Q. GLA Mutations Suppress Autophagy and Stimulate Lysosome Generation in Fabry Disease. Cells 2024; 13:437. [PMID: 38474401 DOI: 10.3390/cells13050437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/23/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Fabry disease (FD) is an X-linked recessive inheritance lysosomal storage disorder caused by pathogenic mutations in the GLA gene leading to a deficiency of the enzyme alpha-galactosidase A (α-Gal A). Multiple organ systems are implicated in FD, most notably the kidney, heart, and central nervous system. In our previous study, we identified four GLA mutations from four independent Fabry disease families with kidney disease or neuropathic pain: c.119C>A (p.P40H), c.280T>C (C94R), c.680G>C (p.R227P) and c.801+1G>A (p.L268fsX3). To reveal the molecular mechanism underlying the predisposition to Fabry disease caused by GLA mutations, we analyzed the effects of these four GLA mutations on the protein structure of α-galactosidase A using bioinformatics methods. The results showed that these mutations have a significant impact on the internal dynamics and structures of GLA, and all these altered amino acids are close to the enzyme activity center and lead to significantly reduced enzyme activity. Furthermore, these mutations led to the accumulation of autophagosomes and impairment of autophagy in the cells, which may in turn negatively regulate autophagy by slightly increasing the phosphorylation of mTOR. Moreover, the overexpression of these GLA mutants promoted the expression of lysosome-associated membrane protein 2 (LAMP2), resulting in an increased number of lysosomes. Our study reveals the pathogenesis of these four GLA mutations in FD and provides a scientific foundation for accurate diagnosis and precise medical intervention for FD.
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Affiliation(s)
- Ping Li
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Yuqian Xi
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Yanping Zhang
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Abdus Samad
- Department of Biochemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Wenli Lan
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Ya Wu
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Jiayu Zhao
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Guangxin Chen
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Changxin Wu
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
| | - Qiuhong Xiong
- Institutes of Biomedical Sciences, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education of China, The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, Taiyuan 030006, China
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3
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Rodríguez Doyágüez P, Furlano M, Ars Criach E, Arce Y, Guirado L, Torra Balcells R. Correlation of X chromosome inactivation with clinical presentation of Fabry disease in a case report. Nefrologia 2023; 43 Suppl 2:91-95. [PMID: 38278716 DOI: 10.1016/j.nefroe.2024.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/09/2022] [Indexed: 01/28/2024] Open
Abstract
Fabry disease or also called Anderson-Fabry disease (FD) is a rare disease caused by pathogenic variants in the GLA gene, located on the X chromosome. This gene is involved in the metabolism of glycosphingolipids and its pathogenic variants cause a deficit or absence of α-galactosidase A causing the deposition of globotriaosylceramide throughout the body. Females have a variable phenotypic expression and a better prognosis than males. This is due to the X chromosome inactivation phenomenon. We present a clinical case of Fabry disease in a female with predominantly renal involvement and demonstrate how the X chromosome inactivation phenomenon is tissue dependent, showing preferential inactivation of the mutated allele at the renal level.
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Affiliation(s)
- Pablo Rodríguez Doyágüez
- Sección de Nefrología, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Mónica Furlano
- Enfermedades Renales Hereditarias, Servicio de Nefrologia, Fundació Puigvert, Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), Universidad Autónoma Barcelona, Barcelona, Spain
| | - Elisabet Ars Criach
- Laboratorio de Biología Molecular, Fundació Puigvert, Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), Barcelona, Spain
| | - Yolanda Arce
- Sección de Anatomía Patológica, Fundació Puigvert, Barcelona, Spain
| | - Lluís Guirado
- Servicio de Nefrología, Fundació Puigvert, Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), Universidad Autónoma Barcelona, Universitat Central de Catalunya (UVIC), Barcelona, Spain
| | - Roser Torra Balcells
- Enfermedades Renales Hereditarias, Servicio de Nefrologia, Fundació Puigvert, Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), Universidad Autónoma Barcelona, Barcelona, Spain.
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4
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Burban A, Pucyło S, Sikora A, Opolski G, Grabowski M, Kołodzińska A. Hypertrophic Cardiomyopathy versus Storage Diseases with Myocardial Involvement. Int J Mol Sci 2023; 24:13239. [PMID: 37686045 PMCID: PMC10488064 DOI: 10.3390/ijms241713239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
One of the main causes of heart failure is cardiomyopathies. Among them, the most common is hypertrophic cardiomyopathy (HCM), characterized by thickening of the left ventricular muscle. This article focuses on HCM and other cardiomyopathies with myocardial hypertrophy, including Fabry disease, Pompe disease, and Danon disease. The genetics and pathogenesis of these diseases are described, as well as current and experimental treatment options, such as pharmacological intervention and the potential of gene therapies. Although genetic approaches are promising and have the potential to become the best treatments for these diseases, further research is needed to evaluate their efficacy and safety. This article describes current knowledge and advances in the treatment of the aforementioned cardiomyopathies.
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Affiliation(s)
- Anna Burban
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
- Doctoral School, Medical University of Warsaw, 81 Żwirki i Wigury Street, 02-091 Warsaw, Poland
| | - Szymon Pucyło
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
| | - Aleksandra Sikora
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
| | - Grzegorz Opolski
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
| | - Marcin Grabowski
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
| | - Agnieszka Kołodzińska
- First Department of Cardiology, Medical University of Warsaw, ul. Banacha 1A, 02-097 Warszawa, Poland; (A.B.); (S.P.); (A.S.); (G.O.); (M.G.)
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5
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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] [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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6
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Choconta JL, Labi V, Dumbraveanu C, Kalpachidou T, Kummer KK, Kress M. Age-related neuroimmune signatures in dorsal root ganglia of a Fabry disease mouse model. Immun Ageing 2023; 20:22. [PMID: 37173694 PMCID: PMC10176851 DOI: 10.1186/s12979-023-00346-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Pain in Fabry disease (FD) is generally accepted to result from neuronal damage in the peripheral nervous system as a consequence of excess lipid storage caused by alpha-galactosidase A (α-Gal A) deficiency. Signatures of pain arising from nerve injuries are generally associated with changes of number, location and phenotypes of immune cells within dorsal root ganglia (DRG). However, the neuroimmune processes in the DRG linked to accumulating glycosphingolipids in Fabry disease are insufficiently understood.Therefore, using indirect immune fluorescence microscopy, transmigration assays and FACS together with transcriptomic signatures associated with immune processes, we assessed age-dependent neuroimmune alterations in DRG obtained from mice with a global depletion of α-Gal A as a valid mouse model for FD. Macrophage numbers in the DRG of FD mice were unaltered, and BV-2 cells as a model for monocytic cells did not show augmented migratory reactions to glycosphingolipids exposure suggesting that these do not act as chemoattractants in FD. However, we found pronounced alterations of lysosomal signatures in sensory neurons and of macrophage morphology and phenotypes in FD DRG. Macrophages exhibited reduced morphological complexity indicated by a smaller number of ramifications and more rounded shape, which were age dependent and indicative of premature monocytic aging together with upregulated expression of markers CD68 and CD163.In our FD mouse model, the observed phenotypic changes in myeloid cell populations of the DRG suggest enhanced phagocytic and unaltered proliferative capacity of macrophages as compared to wildtype control mice. We suggest that macrophages may participate in FD pathogenesis and targeting macrophages at an early stage of FD may offer new treatment options other than enzyme replacement therapy.
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Affiliation(s)
- Jeiny Luna Choconta
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Verena Labi
- Institute of Developmental Immunology, Medical University of Innsbruck, Innsbruck, Austria
| | | | | | - Kai K Kummer
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Michaela Kress
- Institute of Physiology, Medical University of Innsbruck, Innsbruck, Austria.
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Al-Hamed MH, Hussein MH, Shah Y, Al-Mojalli H, Alsabban E, Alshareef T, Altayyar A, Elshouny S, Ali W, Abduljabbar M, AlOtaibi A, AlShammasi A, Akili R, Abouelhoda M, Sayer JA, Dasouki MJ, Imtiaz F. Exome sequencing unravels genetic variants associated with chronic kidney disease in Saudi Arabian patients. Hum Mutat 2022; 43:e24-e37. [PMID: 36177613 DOI: 10.1002/humu.24480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 09/10/2022] [Accepted: 09/26/2022] [Indexed: 01/25/2023]
Abstract
The use of genetic testing within nephrology is increasing and its diagnostic yield depends on the methods utilized, patient selection criteria, and population characteristics. We performed exome sequencing (ES) analysis on 102 chronic kidney disease (CKD) patients with likely genetic kidney disease. Patients had diverse CKD subtypes with/without consanguinity, positive family history, and possible hereditary renal syndrome with extra-renal abnormalities or progressive kidney disease of unknown etiology. The identified genetic variants associated with the observed kidney phenotypes were then confirmed and reported. End-stage kidney disease was reported in 51% of the cohort and a family history of kidney disease in 59%, while known consanguinity was reported in 54%. Pathogenic/likely pathogenic variants were identified in 43 patients with a diagnostic yield of 42%, and clinically associated variants of unknown significance (VUS) were identified in further 21 CKD patients (21%). A total of eight novel predicted pathogenic variants and eight VUS were detected. The clinical utility of ES within the nephrology clinic was demonstrated allowing patient management to be disease-specific. In this cohort, ES detected a diagnostic molecular abnormality in 42% of patients with CKD phenotypes. Positive family history and high rates of consanguinity likely contributed to this high diagnostic yield.
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Affiliation(s)
- Mohamed H Al-Hamed
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.,Saudi Diagnostics Laboratory, KFSH&RC, Riyadh, Saudi Arabia
| | - Maged H Hussein
- Medicine Department, Nephrology Section, KFSH&RC, Riyadh, Saudi Arabia
| | - Yaser Shah
- Organ Transplant Centre of Excellence, Adult Transplant Nephrology, KFSH&RC, Riyadh, Saudi Arabia
| | - Hamad Al-Mojalli
- Organ Transplant Centre of Excellence, Adult Transplant Nephrology, KFSH&RC, Riyadh, Saudi Arabia
| | | | | | - Ali Altayyar
- Medicine Department, Nephrology Section, KFSH&RC, Riyadh, Saudi Arabia
| | - Samir Elshouny
- Medicine Department, Nephrology Section, KFSH&RC, Riyadh, Saudi Arabia
| | - Wafaa Ali
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Mai Abduljabbar
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Afaf AlOtaibi
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Amal AlShammasi
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Rana Akili
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Mohamed Abouelhoda
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - John A Sayer
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Renal Services, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Majed J Dasouki
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Faiqa Imtiaz
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.,Saudi Diagnostics Laboratory, KFSH&RC, Riyadh, Saudi Arabia
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8
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Rusu EE, Zilisteanu DS, Ciobotaru LM, Gherghiceanu M, Procop A, Jurcut RO, Dulamea AO, Sorohan BM. The Impact of Kidney Biopsy for Fabry Nephropathy Evaluation on Patients’ Management and Long-Term Outcomes: Experience of a Single Center. Biomedicines 2022; 10:biomedicines10071520. [PMID: 35884826 PMCID: PMC9313342 DOI: 10.3390/biomedicines10071520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/21/2022] Open
Abstract
Background: Fabry disease (FD) is a rare lysosomal storage disease causing progressive loss of target organ function. All renal cell types are involved from the early stages, even before clinical signs can be detected. FD-specific therapies can stop/mitigate disease progression. Thus, it is important to validate early markers of renal lesions so that they can be adopted as criteria for timely treatment initiation. Materials and methods: We retrospectively analyzed and extensively evaluated 21 FD case patients; this evaluation included a kidney biopsy. We looked for the influence of pathological findings on the management of FD patients. In addition, we investigated the association between general and FD-specific features and long-term patients’ outcomes. We defined a combined endpoint as being at least one of the following: 50% decrease of estimated glomerular filtration rate (eGFR) from baseline, kidney failure (KF), end-stage kidney disease (ESKD), or death and mortality. Results: Our cohort of 21 FD patients (11 males and 10 females) was stratified according to the presence of the combined endpoint: group 1 (n = 15) included patients without the combined endpoint, while group 2 (n = 6) patients reached the combined endpoint outcome. Patients from group 2 presented lower mean baseline eGFR (72.2 ± 38.7 mL/min/1.73 m2 vs. 82.5 ± 26.4 mL/min/1.73 m2) without statistical significance (p = 0.44), but significantly (p = 0.22) higher median baseline proteinuria (2.7 g/24 h vs. 0.4 g/24 h). Specific lysosomal deposits were identified in all patients. Segmental sclerosis was present in all patients with the combined endpoint and in only 33% of patients without the combined endpoint (p = 0.009). Global sclerosis and interstitial fibrosis were present in both groups, with no significant differences. A total of 15 out of the 16 treatment-naïve patients (7 males and 9 females) started FD-specific therapy after kidney biopsy. Treatment was initiated in all male FD patients and in 8 female patients. In 2 females, pathological findings in kidney biopsy offered important reasons to start FD treatment, although specific criteria of the Romanian protocol for prescription of FD-specific therapy were still not fulfilled. Cox univariate analysis showed that every increase in 24 h proteinuria with 1 g is associated with a 65% risk of developing the combined endpoint (HR = 1.65; 95%CI: 1.05–2.58; p = 0.02), and that the presence of segmental sclerosis increased the risk of developing the combined endpoint by 51.3 times (HR = 51.3; 95% CI: 95% CI: 1.67–103.5; p = 0.01). Kaplan–Meier analysis showed that the cumulative risk of developing the combined endpoint was higher in patients in whom segmental sclerosis (100% vs. 0%, log-rank test, p = 0.03) was present. Conclusions: Histological evaluation is an important tool for the detection of early kidney involvement and provides additional support to the early initiation of FD-specific therapy. Presence of segmental sclerosis can predict the long-term outcomes of kidney disease deterioration and mortality and may be used as an early indicator of disease progression. Additionally, in the absence of other criteria according to current guidelines, specific FD renal lesions as revealed by kidney biopsy might become a distinct criterion to initiate FD therapy.
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Affiliation(s)
- Elena-Emanuela Rusu
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Nephrology, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Correspondence:
| | - Diana-Silvia Zilisteanu
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Nephrology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Lucia-Mihaela Ciobotaru
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Nephrology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Mihaela Gherghiceanu
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- “Victor Babes” National Institute for Research and Development in Pathology and Biomedical Sciences, 050097 Bucharest, Romania
| | - Alexandru Procop
- Anatomic Pathology, Fundeni Clinical Institute, 022328 Bucharest, Romania;
| | - Ruxandra-Oana Jurcut
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Cardiology, Emergency Institute for Cardiovascular Diseases “Prof. Dr. C. C. Iliescu”, 022328 Bucharest, Romania
| | - Adriana Octaviana Dulamea
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Neurology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Bogdan Marian Sorohan
- Department of Nephrology, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.-S.Z.); (L.-M.C.); (M.G.); (R.-O.J.); (A.O.D.); (B.M.S.)
- Department of Uronephrology and Kidney Transplantation, Fundeni Clinical Institute, 022328 Bucharest, Romania
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Abstract
A number of genes that cause inherited kidney disorders reside on the X chromosome. Given that males have only a single active X chromosome, these disorders clinically manifest primarily in men and boys. However, phenotypes in female carriers of X-linked kidney conditions are becoming more and more recognized. This article reviews the biology of X inactivation as well as the kidney phenotype in women and girls with a number of X-linked kidney disorders including Alport syndrome, Fabry disease, nephrogenic diabetes insipidus, X-linked hypophosphatemic rickets, Dent disease, and Lowe syndrome.
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Affiliation(s)
- Catherine Quinlan
- Department of Nephrology, Royal Children's Hospital, Melbourne, Victoria, Australia; Department of Kidney Regeneration, Murdoch Children's Research Institute, Melbourne, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Michelle N Rheault
- Division of Pediatric Nephrology, Department of Pediatrics, University of Minnesota Masonic Children's Hospital, Minneapolis, MN.
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10
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Lee MJ, Lee I, Wang K. Recent Advances in RNA Therapy and Its Carriers to Treat the Single-Gene Neurological Disorders. Biomedicines 2022; 10:biomedicines10010158. [PMID: 35052837 PMCID: PMC8773368 DOI: 10.3390/biomedicines10010158] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 02/07/2023] Open
Abstract
The development of new sequencing technologies in the post-genomic era has accelerated the identification of causative mutations of several single gene disorders. Advances in cell and animal models provide insights into the underlining pathogenesis, which facilitates the development and maturation of new treatment strategies. The progress in biochemistry and molecular biology has established a new class of therapeutics—the short RNAs and expressible long RNAs. The sequences of therapeutic RNAs can be optimized to enhance their stability and translatability with reduced immunogenicity. The chemically-modified RNAs can also increase their stability during intracellular trafficking. In addition, the development of safe and high efficiency carriers that preserves the integrity of therapeutic RNA molecules also accelerates the transition of RNA therapeutics into the clinic. For example, for diseases that are caused by genetic defects in a specific protein, an effective approach termed “protein replacement therapy” can provide treatment through the delivery of modified translatable mRNAs. Short interference RNAs can also be used to treat diseases caused by gain of function mutations or restore the splicing aberration defects. Here we review the applications of newly developed RNA-based therapeutics and its delivery and discuss the clinical evidence supporting the potential of RNA-based therapy in single-gene neurological disorders.
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Affiliation(s)
- Ming-Jen Lee
- Department of Neurology, National Taiwan University Hospital, Taipei 10012, Taiwan;
- Department of Medical Genetics, National Taiwan University Hospital, Taipei 10012, Taiwan
| | - Inyoul Lee
- Institute for Systems Biology, Seattle, WA 98109, USA;
| | - Kai Wang
- Institute for Systems Biology, Seattle, WA 98109, USA;
- Correspondence: ; Tel.: +1-206-732-1336
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Muntean C, Starcea IM, Stoica C, Banescu C. Clinical Characteristics, Renal Involvement, and Therapeutic Options of Pediatric Patients With Fabry Disease. Front Pediatr 2022; 10:908657. [PMID: 35722479 PMCID: PMC9198369 DOI: 10.3389/fped.2022.908657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Abstract
Inherited renal diseases represent 20% of the causes of end-stage renal diseases. Fabry disease, an X-linked lysosomal storage disorder, results from α-galactosidase A deficient or absent activity followed by globotriaosylceramide (Gb3) accumulation and multiorgan involvement. In Fabry disease, kidney involvement starts early, during intrauterine life by the Gb3 deposition. Even if chronic kidney disease (CKD) is discovered later in adult life in Fabry disease patients, a decline in glomerular filtration rate (GFR) can occur during adolescence. The first clinical sign of kidney involvement is represented by albuminuria. So, early and close monitoring of kidneys function is required: albuminuria and proteinuria, urinary albumin-to-creatinine ratio, serum creatinine, or cystatin C to estimate GFR, while urinary sediment with phase-contrast microscopy under polarized light may be useful in those cases where leucocyte α-Gal A activity and GLA genotyping are not available. Children with Fabry disease and kidney involvement should receive enzyme replacement therapy and nephroprotective drugs (angiotensin-converting enzyme inhibitors or angiotensin receptor blockers) to prevent or slow the progressive loss of kidney functions. Early diagnosis of Fabry disease is important as enzyme replacement therapy reduces symptoms, improves clinical features and biochemical markers, and the quality of life. More importantly, early treatment could slow or stop progressive organ damage in later life.
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Affiliation(s)
- Carmen Muntean
- Department of Pediatrics I, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Targu Mures, Romania
| | - Iuliana Magdalena Starcea
- Department of Pediatric Nephrology, Sf Maria Emergency Hospital for Children Iasi, University of Medicine and Pharmacy Grigore T. Popa Iasi, Iasi, Romania
| | - Cristina Stoica
- Pediatric Nephrology Department, Fundeni Clinical Institute, University of Medicine and Pharmacy Carol Davila Bucharest, Bucharest, Romania
| | - Claudia Banescu
- Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, Targu Mures, Romania
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