Non-functional ubiquitin C-terminal hydrolase L1 drives podocyte injury through impairing proteasomes in autoimmune glomerulonephritis

This article is currently being updated. View its version on PubMed.

https://pubmed.ncbi.nlm.nih.gov/37055432

Research summary

This study investigates the role of UCH-L1 in podocyte injury within the context of autoimmune glomerulonephritis. The researchers demonstrate that oxidative stress induces the expression of a non-functional form of UCH-L1 in podocytes, which impairs proteasome activity, leading to protein accumulation and cell injury. Podocyte-specific deletion of UCH-L1 mitigates these effects, highlighting its pathogenic role.

Key outcome of the study

Oxidative stress induces non-functional UCH-L1 expression in podocytes, impairing proteasome function and leading to protein accumulation and cell injury. Podocyte-specific deletion of UCH-L1 protects against these effects, underscoring its role in disease pathogenesis.

Mouse model

UCHL1(fl/fl) conditional Knockout mouse model developed by genOway, allowing for tissue-specific deletion of UCHL1 to study its function in podocyte biology and glomerular disease.

TARGET:
Uchl1
Ubiquitin C-terminal hydrolase L1, PARK5

Keywords

Autoimmune glomerulonephritis, Podocyte injury, Proteasome dysfunction, Oxidative stress, Ubiquitin-proteasome system

Technical specifications

Conditional Knockout model, LoxP-flanked UCHL1 alleles, Tissue-specific Cre recombinase, Oxidative stress assays, Proteasome activity measurements

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Tissue-specific KO mouse

Use tissue- or cell-specific conditional Knockout mouse models to bypass embryonic lethality, compensatory mechanisms, complex phenotypes, etc.