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Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function

Dent disease 1 (DD1) is a rare X-linked renal proximal tubulopathy characterized by low molecular weight proteinuria and variable degree of hypercalciuria, nephrocalcinosis and/or nephrolithiasis, progressing to chronic kidney disease. Although mutations in the electrogenic Cl(−)/H(+) antiporter ClC...

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Autores principales: Durán, Mónica, Burballa, Carla, Cantero-Recasens, Gerard, Butnaru, Cristian M, Malhotra, Vivek, Ariceta, Gema, Sarró, Eduard, Meseguer, Anna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8283206/
https://www.ncbi.nlm.nih.gov/pubmed/33987651
http://dx.doi.org/10.1093/hmg/ddab131
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author Durán, Mónica
Burballa, Carla
Cantero-Recasens, Gerard
Butnaru, Cristian M
Malhotra, Vivek
Ariceta, Gema
Sarró, Eduard
Meseguer, Anna
author_facet Durán, Mónica
Burballa, Carla
Cantero-Recasens, Gerard
Butnaru, Cristian M
Malhotra, Vivek
Ariceta, Gema
Sarró, Eduard
Meseguer, Anna
author_sort Durán, Mónica
collection PubMed
description Dent disease 1 (DD1) is a rare X-linked renal proximal tubulopathy characterized by low molecular weight proteinuria and variable degree of hypercalciuria, nephrocalcinosis and/or nephrolithiasis, progressing to chronic kidney disease. Although mutations in the electrogenic Cl(−)/H(+) antiporter ClC-5, which impair endocytic uptake in proximal tubule cells, cause the disease, there is poor genotype–phenotype correlation and their contribution to proximal tubule dysfunction remains unclear. To further discover the mechanisms linking ClC-5 loss-of-function to proximal tubule dysfunction, we have generated novel DD1 cellular models depleted of ClC-5 and carrying ClC-5 mutants p.(Val523del), p.(Glu527Asp) and p.(Ile524Lys) using the human proximal tubule-derived RPTEC/TERT1 cell line. Our DD1 cellular models exhibit impaired albumin endocytosis, increased substrate adhesion and decreased collective migration, correlating with a less differentiated epithelial phenotype. Despite sharing functional features, these DD1 cell models exhibit different gene expression profiles, being p.(Val523del) ClC-5 the mutation showing the largest differences. Gene set enrichment analysis pointed to kidney development, anion homeostasis, organic acid transport, extracellular matrix organization and cell-migration biological processes as the most likely involved in DD1 pathophysiology. In conclusion, our results revealed the pathways linking ClC-5 mutations with tubular dysfunction and, importantly, provide new cellular models to further study DD1 pathophysiology.
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spelling pubmed-82832062021-07-19 Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function Durán, Mónica Burballa, Carla Cantero-Recasens, Gerard Butnaru, Cristian M Malhotra, Vivek Ariceta, Gema Sarró, Eduard Meseguer, Anna Hum Mol Genet General Article Dent disease 1 (DD1) is a rare X-linked renal proximal tubulopathy characterized by low molecular weight proteinuria and variable degree of hypercalciuria, nephrocalcinosis and/or nephrolithiasis, progressing to chronic kidney disease. Although mutations in the electrogenic Cl(−)/H(+) antiporter ClC-5, which impair endocytic uptake in proximal tubule cells, cause the disease, there is poor genotype–phenotype correlation and their contribution to proximal tubule dysfunction remains unclear. To further discover the mechanisms linking ClC-5 loss-of-function to proximal tubule dysfunction, we have generated novel DD1 cellular models depleted of ClC-5 and carrying ClC-5 mutants p.(Val523del), p.(Glu527Asp) and p.(Ile524Lys) using the human proximal tubule-derived RPTEC/TERT1 cell line. Our DD1 cellular models exhibit impaired albumin endocytosis, increased substrate adhesion and decreased collective migration, correlating with a less differentiated epithelial phenotype. Despite sharing functional features, these DD1 cell models exhibit different gene expression profiles, being p.(Val523del) ClC-5 the mutation showing the largest differences. Gene set enrichment analysis pointed to kidney development, anion homeostasis, organic acid transport, extracellular matrix organization and cell-migration biological processes as the most likely involved in DD1 pathophysiology. In conclusion, our results revealed the pathways linking ClC-5 mutations with tubular dysfunction and, importantly, provide new cellular models to further study DD1 pathophysiology. Oxford University Press 2021-05-13 /pmc/articles/PMC8283206/ /pubmed/33987651 http://dx.doi.org/10.1093/hmg/ddab131 Text en © The Author(s) 2021. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle General Article
Durán, Mónica
Burballa, Carla
Cantero-Recasens, Gerard
Butnaru, Cristian M
Malhotra, Vivek
Ariceta, Gema
Sarró, Eduard
Meseguer, Anna
Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title_full Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title_fullStr Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title_full_unstemmed Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title_short Novel Dent disease 1 cellular models reveal biological processes underlying ClC-5 loss-of-function
title_sort novel dent disease 1 cellular models reveal biological processes underlying clc-5 loss-of-function
topic General Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8283206/
https://www.ncbi.nlm.nih.gov/pubmed/33987651
http://dx.doi.org/10.1093/hmg/ddab131
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