Kidney Blood Press Res
Department of Nephrology, Brain Hospital of Hunan Province, The Second People's Hospital of Hunan Province, Changsha, China.
Published: July 2024
Introduction: The present study investigated the role of long non-coding RNA (lncRNA) GABPB1-IT1 in ischemia-induced acute kidney injury (AKI).
Methods: The expression of GABPB1-IT1 in the 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 was performed to assess the promoter methylation status of miR-204-5p. Additionally, a 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.
Results: GABPB1-IT1 was upregulated in the 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.
Conclusion: 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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http://dx.doi.org/10.1159/000539342 | DOI Listing |
FASEB J
December 2024
Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China.
MicroRNA-21 (miR-21) is one of the most frequently upregulated miRNAs in response to kidney ischemia-reperfusion (IR) injury, exhibiting both protective and pathogenic effects depending on the cell type, disease state, and target signaling. In this study, we analyzed the function of miR-21 in various cell types to elucidate its role in ischemia-induced inflammation and acute kidney injury (AKI). Utilizing a mouse model of IR injury, we observed significant upregulation of miR-21 in renal tubular epithelial cells and macrophages following IR.
View Article and Find Full Text PDFJ Pharmacol Exp Ther
June 2024
Discovery Chemistry, Johnson & Johnson Innovative Medicine, United States.
Acute Kidney Injury (AKI) is characterized by an abrupt decline in kidney function and has been associated with excess risks of death, kidney disease progression, and cardiovascular events. The kidney has a high energetic demand with mitochondrial health being essential to renal function and damaged mitochondria has been reported across AKI subtypes. 5' adenosine monophosphate-activated protein kinase (AMPK) activation preserves cellular energetics through improvement of mitochondrial function and biogenesis when ATP levels are low such as under ischemia-induced AKI.
View Article and Find Full Text PDFKidney Blood Press Res
July 2024
Department of Nephrology, Brain Hospital of Hunan Province, The Second People's Hospital of Hunan Province, Changsha, China.
Introduction: The present study investigated the role of long non-coding RNA (lncRNA) GABPB1-IT1 in ischemia-induced acute kidney injury (AKI).
Methods: The expression of GABPB1-IT1 in the 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.
Am J Physiol Renal Physiol
April 2024
Department of Surgery, Uniformed Services University of the Health Science, Bethesda, Maryland, United States.
Resuscitative endovascular balloon occlusion of the aorta (REBOA) is used to control noncompressible hemorrhage not addressed with traditional tourniquets. However, REBOA is associated with acute kidney injury (AKI) and subsequent mortality in severely injured trauma patients. Here, we investigated how the degree of aortic occlusion altered the extent of AKI in a porcine model.
View Article and Find Full Text PDFMol Ther
September 2023
Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China. Electronic address:
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