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Fisiopatologia Renal

El nostre principal interès científic és entendre, des d’una aproximació multidisciplinària i translacional, els processos moleculars i cel·lulars que duen a una disfunció renal en diferents patologies del ronyó. Concretament, les nostres principals línies de recerca són les següents:

  • Estudi de la fisiopatologia de les tubulopaties renals rares hereditàries.
  • Comprensió dels mecanismes de dany i regeneració renal.
  • Estudi del desenvolupament del carcinoma renal de cèl·lules clares (CCRCC, per les seves sigles en anglès).
  • Estudi de l’impacte dels andrògens en aquests processos. 

Som experts en el següent:

  • Generació de models cel·lulars de patologies renals amb alteracions genètiques específiques.
  • Models animals modificats genèticament i amb teràpia gènica
  • Tècniques de microscòpia d’alta resolució en temps real
  • Treball amb mostres de pacients per a fer recerca translacional. 

En conjunt, la nostra investigació té com a objectiu combinar dades «òmiques» de models cel·lulars i animals amb dades de pacients per a desenvolupar nous biomarcadors i possibles tractaments de diverses patologies renals.

Línies de recerca

Mechanisms of chronic renal disease progression and cardiovascular risk in pediatric patients with chronic renal disease

Pediatric patients with chronic kidney disease (CKD) constitude a high risk group for cardiovascular disease (CVD) related to traditional and non-traditional risk factors. We are interested in studying the relationship between traditional CVD risk factors (obesity, overweight, anemia, dyslipemia, malnutrition, hypertension, and non-traditional CVD risk factors (homocysteine, asymmetric dymethylarginine (ADMA), FGF23, ultraselective protein C (PCR) and carotid intima-media thickness (cIMT) in children and adolescents with CKD, based on its severity and duration.  Further, we are also interested in finding a biomarker to identify early in the disease, those patients with increased CVD risk and poor outcome.

IP: Gema Ariceta Iraola

Pathologic mechanisms leading to chronic allograft disease and detection of early markers.

Chronic allograft nephropathy (CAN) is one of the major causes of graft loss in kidney-transplanted patients. The pathogenetic mechanisms of CAN are probably multifactorial, including early noxious agents as a consequence of  ischemia/ reperfusion of the graft or high loading doses of anticalcineurinics (aCN), and also chronic damage following aCN therapy, rejection or other reasons. We want to determine the proteomic and genomic changes occurring in tubular cells after different noxious agents (cyclosporin, tacrolimus, other renal toxicants, hypoxia), and also the effects caused by immunophilin silencing (anticalcineurin receptors) in the renal proximal tubule cells. Our objective is to identify specific markers of kidney injury that would be useful to anticipate toxicity or injury in early starges. Those putative markers will be clinically validated in collaboration with the Nephrology and the Pathology services of Vall d’Hebron Hospital.

IP: -

Rare inhirited renal diseases

Our group is focused in research in primary or inherited tubular renal diseases, such as Dent’s Disease, Bartter syndrome, Tubular Acidosis, Familial Hypomagnesemia with Hypercalciuria and Nephrocalcinosis, among others. Currently we are collaborating  with other groups in Spain, within a research project named Renaltube the main purpose of which is to build a database while facilitating access to genotyping in order to improve the clinical and molecular knowledge of primary tubulopathies. Renaltube has a web-based approach with multilateral collaboration scheme that enhances the recruitment of data and promotes the understanding of underlying mechanisms of rare inherited diseases, defines more accurate diagnostic and follow-up criteria, develops new molecular techniques and will improve the overall care of the patients. Currently we are offering the analysis of 22 genes corresponding to 23 primary tubulopathies. After two years of activity Renaltube has collected data from 222 patients, the mayority from Spain and Latin America (85.3%). The most common tubulopathies are distal renal tubular acidosis (22.5%), and classical Bartter syndrome (19.3%) followed by familial hypomagesemia with hipercalciuria and nephrocalcinosis (15.7%), and Gitelman syndrome (15%).

IP: Gema Ariceta Iraola

Role of HAVRC/KIM-1 in the development and progression of the renal clear cell carcinoma (ccRCC) and in the damage/regeneration renal tubular processes

Overexpression of this protein in 60% of the ccRCCs has already been described. HAVR/KIM-1 overexpression in human ccRCC cell lines blocks cell differentiation and promotes cell scattering. We aim to determine the role of HAVR/KIM-1 in the development and progression of ccRCC, and its possible value as a diagnostic and prognostic biomarker. We also focus on KIM-1’s role in ischemia/reperfusion- or nephrotoxic-induced renal tubular injury. Overexpression of this protein in kidney injury has been described. However, whether its involvement is associated with processes enabling to recover tubular epithelium or potentially increasing damage is not known to this date. With the assistance of cultured renal tubular cell models, we are now investigating whether KIM-1 expression shifts are correlated with renal proximal tubule regeneration ability and, as a consequence, investigating its potential therapeutic application.

IP: Role of HAVRC/KIM-1 in the development and progression of the renal clear cell carcinoma (ccRCC) and in the damage/regeneration

Actualitat

Notícies

El 19 de maig, el Dr. Gerard Cantero i la Dra. Mireia López Corbeto explicaran com estudien les malalties minoritàries i l’artritis infantil.

S’ha aconseguit finançament per a 43 projectes en les convocatòries de Projectes d’I+D+I en Salut, Desenvolupament Tecnològic en Salut i Recerca Clínica Independent

L’objectiu del treball és establir organoides de ronyó derivats de pacients amb hipomagnesèmia familiar amb hipercalciúria i nefrocalcinosi, els quals seran eines essencials per estudiar la patologia i provar nous tractaments.