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Discovery of putative prognostic and therapeutic miRNA in uEVs of Dent's Disease 1 patients and characterisation of cellular models of the disease

Authors: Burballa Tàrrega, Carla;

Discovery of putative prognostic and therapeutic miRNA in uEVs of Dent's Disease 1 patients and characterisation of cellular models of the disease

Abstract

La malaltia de Dent 1 (DD1) és una tubulopatia renal rara causada per mutacions en el gen CLCN5 i caracteritzada per proteinuria de baix pes molecular, hipercalciuria, nefrocalcinosi i/o litiasis renals així com progrés a insuficiència renal. Els mecanismes que causen la pèrdua de funció de ClC-5 i el defecte en l’endocitosi en el túbul proximal (entre d’altres fenotips de DD1) no es coneixen. En aquesta Tesi hem desenvolupat tres aproximacions per identificar vies alterades per mutacions en ClC-5. (1) hem fet una enquesta europea per analitzar la prevalença i les característiques clíniques de DD1, (2) hem estudiat l’expressió de miRNA en vesícules exosome-like urinàries (uEVs) per entendre els mecanismes fisiopatològics de la malaltia i (3) hem caracteritzat un model cel·lular de DD1. L’enquesta europea mostrà que DD1 té una presentació variable. El nostre estudi de miRNA en uEVs va permetre identificar nous mecanismes fisiopatològics que poden ser potencials biomarcadors diagnòstics i pronòstics de DD1. Finalment, el nostre model cel·lular amb diferents mutacions provà representar un prototip vàlid per investigacions addicionals del mecanismes desregulats.

Dent disease 1 (DD1) is a rare renal tubulopathy caused by CLCN5 mutations and characterized by low molecular weight proteinuria, variable hypercalciuria, nephrocalcinosis and/or nephrolithiasis and progression to kidney failure. The underlying mechanisms linking ClC-5 loss-of-function and endocytosis impairment in the renal proximal tubule (and other DD1 phenotypes) remain unknown. In this thesis we have followed three approaches to identify altered pathways by ClC-5 mutations: (1) conduct a European survey to analyse the prevalence and DD1 clinical features, (2) study miRNA expression profiles from DD1 patients’ urinary exosome-like vesicles (uEVs) to get insight into DD1 pathophysiological mechanisms and (3) characterisation of a DD1 cell model. The European survey showed that DD1 has a variable presentation. Our study of uEVs miRNA identified new pathophysiological pathways, which may lead to identify putative diagnostic and prognostic biomarkers. Finally, our cell model with different mutations provides a valuable prototype for additional investigation of impaired pathways.

Programa de doctorat en Biomedicina

Country
Spain
Keywords

Vesícules exosome-like urinaries (uEVs), Chloride Channel 5 (CIC-5), Endocytosis microRNA (miRNA), 616.6, Endocitosi microRNA (miRNA), Urinary exosome-like vesicles (uEVs), Canal de clor 5 (CIC-5), Dent's Disease type 1 (DD1), Malaltia de dent tipus 1 (DD1)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green