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Feng, Fang; Zhang, Ru; Long, Lihong
Kidney & blood pressure research, 2024-Jun-01Journal Article
The present study investigated the role of long non-coding RNA (lncRNA) GABPB1-IT1 in ischemia-induced acute kidney injury (AKI). The expression of GABPB1-IT1 in plasma of patients with ischemia-induced AKI and healthy controls was detected by RT-qPCR. GABPB1-IT1 and miR-204-5p were overexpressed in human renal proximal tubular epithelial cells (HRPTEpCs), followed by RT-qPCR to assess the overexpression effect and the regulatory relationship between GABPB1-IT1 and miR-204-5p. Methylation-specific PCR (MSP) was performed to assess the promoter methylation status of miR-204-5p. Additionally, cell apoptosis assay was carried out to evaluate the correlation between miR-204-5p and GABPB1-IT1 in the context of hypoxia-induced apoptosis of HRPTEpCs. GABPB1-IT1 was upregulated in plasma of patients with ischemia-induced AKI. In HRPTEpCs, hypoxia upregulated the expression of GABPB1-IT1. MiR-204-5p was downregulated in ischemia-induced AKI, and the expression of miR-204-5p was inversely correlated with GABPB1-IT1. In HRPTEpCs, overexpression of GABPB1-IT1 decreased the expression levels of miR-204-5p and increased miR-204-5p gene methylation. In addition, overexpression of GABPB1-IT1 reduced the inhibitory effects of miR-204-5p on the apoptosis of HRPTEpC induced by hypoxia. Furthermore, overexpression of GABPB1-IT1 promoted kidney injury, renal tissue injury scores, and the level of serum creatinine. However, miR-204-5p had the opposite effect. GABPB1-IT1 was upregulated in ischemia-induced AKI and may induce hypoxia-induced apoptosis of HRPTEpC by methylation of miR-204-5p.
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Vir: Osebne bibliografije
in: SICRIS
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