MiR-29b Alleviates High Glucose-induced Inflammation and Apoptosis in Podocytes by Down-regulating PRKAB2

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BACKGROUND: Podocyte injury and inflammatory response are the core contributors to the pathogenesis of diabetic nephropathy. This study aims to identify novel regulatory miRNAs and elucidate their underlying mechanisms, which will help us understand the pathogenesis of diabetic nephropathy more comprehensively.

MATERIALS AND METHODS: Different glucose concentrations were used to treat podocytes to mimic the pathology of diabetic nephropathy in vitro. Flow cytometry was used to determine cell apoptosis. Inflammatory cytokines released by podocytes were measured by using an enzymelinked immunosorbent assay (ELISA). Western Blot was used to detect the expression of PRKAB2 protein in podocytes.

RESULTS: Genecard and g: profiler results revealed that miR-29b might be involved in regulating HG-induced cell injury. QRT-PCR indicated that HG-induced downregulation of miR-29b in podocytes. MiR-29b knockdown promoted cell apoptosis and inflammatory response in podocytes. MiR-29b overexpression repressed cell apoptosis and inflammatory response induced by high glucose treatment in podocytes. Luciferase reporter assay and Western Blot showed that miR-29b targeted PRKAB2 to negatively regulate PRKAB2 expression directly. Knockdown of PRKAB2 reversed the increased cell apoptosis and inflammation induced by miR-29b inhibitors.

CONCLUSION: MiR-29b plays a role in inhibiting inflammation and apoptosis in high glucose (HG) treated podocytes by negatively regulating PRKAB2 expression. This study provides new potential targets and ideas for the treatment of diabetic nephropathy.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Endocrine, metabolic & immune disorders drug targets - (2024) vom: 08. Jan.

Sprache:

Englisch

Beteiligte Personen:

Du, Hongxiu [VerfasserIn]
Wang, Yakun [VerfasserIn]
Zhu, Yingchun [VerfasserIn]
Li, Xiaoying [VerfasserIn]
Zhu, Tingying [VerfasserIn]
Wu, Qianqian [VerfasserIn]
Zha, Fangfang [VerfasserIn]

Links:

Volltext

Themen:

Cell apoptosis
Diabetic nephropathy
Inflammation
Journal Article
MicroRNAs
Podocytes.

Anmerkungen:

Date Revised 11.01.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.2174/0118715303267375231204103200

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366948253