Tubular toxicity of proteinuria and the progression of chronic kidney disease

© The Author(s) 2023. Published by Oxford University Press on behalf of the ERA..

Proteinuria is a well-established biomarker of chronic kidney disease (CKD) and a risk predictor of associated disease outcomes. Proteinuria is also a driver of CKD progression toward end-stage kidney disease. Toxic effects of filtered proteins on proximal tubular epithelial cells enhance tubular atrophy and interstitial fibrosis. The extent of protein toxicity and the underlying molecular mechanisms responsible for tubular injury during proteinuria remain unclear. Nevertheless, albumin elicits its toxic effects when degraded and reabsorbed by proximal tubular epithelial cells. Overall, healthy kidneys excrete over 1000 individual proteins, which may be potentially harmful to proximal tubular epithelial cells when filtered and/or reabsorbed in excess. Proteinuria can cause kidney damage, inflammation and fibrosis by increasing reactive oxygen species, autophagy dysfunction, lysosomal membrane permeabilization, endoplasmic reticulum stress and complement activation. Here we summarize toxic proteins reported in proteinuria and the current understanding of molecular mechanisms of toxicity of proteins on proximal tubular epithelial cells leading to CKD progression.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:39

Enthalten in:

Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association - 39(2024), 4 vom: 27. März, Seite 589-599

Sprache:

Englisch

Beteiligte Personen:

Makhammajanov, Zhalaliddin [VerfasserIn]
Gaipov, Abduzhappar [VerfasserIn]
Myngbay, Askhat [VerfasserIn]
Bukasov, Rostislav [VerfasserIn]
Aljofan, Mohamad [VerfasserIn]
Kanbay, Mehmet [VerfasserIn]

Links:

Volltext

Themen:

Albuminuria
Chronic kidney disease
Journal Article
Proteinuria
Renal tubular toxicity
Tubulointerstitial fibrosis

Anmerkungen:

Date Completed 28.03.2024

Date Revised 28.03.2024

published: Print

Citation Status MEDLINE

doi:

10.1093/ndt/gfad215

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362851514