Identification of dicarbonyl and L-xylulose reductase as a therapeutic target in human chronic kidney disease

An imbalance of nephroprotective factors and renal damaging molecules contributes to development and progression of chronic kidney disease (CKD). We investigated associations of renoprotective factor gene expression patterns with CKD severity and outcome. Gene expression profiles of 197 previously reported renoprotective factors were analyzed in a discovery cohort in renal biopsies of 63 CKD patients. Downregulation of dicarbonyl and L-xylulose reductase (DCXR) showed the strongest association with disease progression. This significant association was validated in an independent set of 225 patients with nephrotic syndrome from the multicenter NEPTUNE cohort. Reduced expression of DCXR was significantly associated with degree of histological damage as well as with lower estimated glomerular filtration rate and increased urinary protein levels. DCXR downregulation in CKD was confirmed in 3 publicly available transcriptomics data sets in the context of CKD. Expression of DCXR showed positive correlations to enzymes that are involved in dicarbonyl stress detoxification based on transcriptomics profiles. The sodium glucose cotransporter-2 (SGLT2) inhibitors canagliflozin and empagliflozin showed a beneficial effect on renal proximal tubular cells under diabetic stimuli-enhanced DCXR gene expression. In summary, lower expression of the renoprotective factor DCXR in renal tissue is associated with more severe disease and worse outcome in human CKD.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:4

Enthalten in:

JCI insight - 4(2019), 12 vom: 20. Juni

Sprache:

Englisch

Beteiligte Personen:

Perco, Paul [VerfasserIn]
Ju, Wenjun [VerfasserIn]
Kerschbaum, Julia [VerfasserIn]
Leierer, Johannes [VerfasserIn]
Menon, Rajasree [VerfasserIn]
Zhu, Catherine [VerfasserIn]
Kretzler, Matthias [VerfasserIn]
Mayer, Gert [VerfasserIn]
Rudnicki, Michael [VerfasserIn]
Nephrotic Syndrome Study Network (NEPTUNE) [VerfasserIn]

Links:

Volltext

Themen:

Chronic kidney disease
EC 1.1.-
EC 1.1.1.10
Expression profiling
Journal Article
L-xylulose reductase
Molecular pathology
Nephrology
Protective Agents
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Sugar Alcohol Dehydrogenases

Anmerkungen:

Date Completed 24.08.2020

Date Revised 12.10.2023

published: Electronic-eCollection

Citation Status MEDLINE

doi:

10.1172/jci.insight.128120

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM298335344