Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks

Mucopolysaccharidosis IVA (MPS IVA) is a rare disorder caused by mutations in the N-acetylgalactosamine-6-sulfate-sulfatase (<i>GALNS</i>) encoding gene. GALNS leads to the lysosomal degradation of the glycosaminoglyccreasans keratan sulfate and chondroitin 6-sulfate. Impaired GALNS enzy...

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Main Authors: Andrés Felipe Leal, Carlos Javier Alméciga-Díaz, Shunji Tomatsu
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/22/16148
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author Andrés Felipe Leal
Carlos Javier Alméciga-Díaz
Shunji Tomatsu
author_facet Andrés Felipe Leal
Carlos Javier Alméciga-Díaz
Shunji Tomatsu
author_sort Andrés Felipe Leal
collection DOAJ
description Mucopolysaccharidosis IVA (MPS IVA) is a rare disorder caused by mutations in the N-acetylgalactosamine-6-sulfate-sulfatase (<i>GALNS</i>) encoding gene. GALNS leads to the lysosomal degradation of the glycosaminoglyccreasans keratan sulfate and chondroitin 6-sulfate. Impaired GALNS enzymes result in skeletal and non-skeletal complications in patients. For years, the MPS IVA pathogenesis and the assessment of promising drugs have been evaluated using in vitro (primarily fibroblasts) and in vivo (mainly mouse) models. Even though value information has been raised from those studies, these models have several limitations. For instance, chondrocytes have been well recognized as primary cells affected in MPS IVA and responsible for displaying bone development impairment in MPS IVA patients; nonetheless, only a few investigations have used those cells to evaluate basic and applied concepts. Likewise, current animal models are extensively represented by mice lacking GALNS expression; however, it is well known that MPS IVA mice do not recapitulate the skeletal dysplasia observed in humans, making some comparisons difficult. This manuscript reviews the current in vitro and in vivo MPS IVA models and their drawbacks.
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spelling doaj.art-926aeaab8aab4360b156e005306e2b7a2023-11-24T14:46:11ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-11-0124221614810.3390/ijms242216148Mucopolysaccharidosis IVA: Current Disease Models and DrawbacksAndrés Felipe Leal0Carlos Javier Alméciga-Díaz1Shunji Tomatsu2Nemours Children’s Health, Wilmington, DE 19803, USAInstitute for the Study of Inborn Errors of Metabolism, Faculty of Science, Pontificia Universidad Javeriana, Bogotá 110231, ColombiaNemours Children’s Health, Wilmington, DE 19803, USAMucopolysaccharidosis IVA (MPS IVA) is a rare disorder caused by mutations in the N-acetylgalactosamine-6-sulfate-sulfatase (<i>GALNS</i>) encoding gene. GALNS leads to the lysosomal degradation of the glycosaminoglyccreasans keratan sulfate and chondroitin 6-sulfate. Impaired GALNS enzymes result in skeletal and non-skeletal complications in patients. For years, the MPS IVA pathogenesis and the assessment of promising drugs have been evaluated using in vitro (primarily fibroblasts) and in vivo (mainly mouse) models. Even though value information has been raised from those studies, these models have several limitations. For instance, chondrocytes have been well recognized as primary cells affected in MPS IVA and responsible for displaying bone development impairment in MPS IVA patients; nonetheless, only a few investigations have used those cells to evaluate basic and applied concepts. Likewise, current animal models are extensively represented by mice lacking GALNS expression; however, it is well known that MPS IVA mice do not recapitulate the skeletal dysplasia observed in humans, making some comparisons difficult. This manuscript reviews the current in vitro and in vivo MPS IVA models and their drawbacks.https://www.mdpi.com/1422-0067/24/22/16148chondrocytesfibroblastsmousemucopolysaccharidosis IVArat
spellingShingle Andrés Felipe Leal
Carlos Javier Alméciga-Díaz
Shunji Tomatsu
Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
International Journal of Molecular Sciences
chondrocytes
fibroblasts
mouse
mucopolysaccharidosis IVA
rat
title Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
title_full Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
title_fullStr Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
title_full_unstemmed Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
title_short Mucopolysaccharidosis IVA: Current Disease Models and Drawbacks
title_sort mucopolysaccharidosis iva current disease models and drawbacks
topic chondrocytes
fibroblasts
mouse
mucopolysaccharidosis IVA
rat
url https://www.mdpi.com/1422-0067/24/22/16148
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AT shunjitomatsu mucopolysaccharidosisivacurrentdiseasemodelsanddrawbacks