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Background <p>Lupus nephritis (LN) is a prevalent and severe complication associated with systemic lupus erythematosus (SLE), posing a substantial risk to renal function and adversely affecting the quality of life of affected individuals. miRNAs play a crucial regulatory role in adaptive immune responses. However, the involvement of specific miRNAs in LN is rarely reported. This research aims to examine the clinical value of miR-7974, as well as the expression changes and interaction mechanisms of the miR-7974/DDAH1 axis in LN, and its impact on the pathogenesis of LN.</p> Methods <p>The expression levels of miR-7974 and DDAH1 were measured using real-time fluorescence quantification. CCK-8 was utilized to assess cell proliferation ability. ELISA was employed to quantify the levels of inflammatory factors. The binding of miR-7974 to DDAH1 was verified using a dual luciferase reporter gene assay.</p> Results <p>miR-7974 is highly expressed in blood samples from patients with LN and LPS-induced HRMCs, whereas DDAH1 is expressed at low levels. The ROC curve suggests that miR-7974 possesses diagnostic value. The knockdown of miR-7974 and the overexpression of DDAH1 both inhibit cell proliferation and reduce levels of inflammatory cytokines. Additionally, miR-7974 negatively regulates DDAH1.</p> Conclusions <p>miR-7974 plays a role in the progression of LN by negatively regulating DDAH1. The miR-7974/DDAH1 axis may serve as a non-invasive biomarker and a potential therapeutic target for the diagnosis of LN.</p>

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miR-7974 as a potential biomarker for lupus nephritis and its involvement in disease progression

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月6日

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  • Rongzheng Yue,
  • Shanshan Wang,
  • Jing Wang,
  • Hongyu Qiu

摘要

Background

Lupus nephritis (LN) is a prevalent and severe complication associated with systemic lupus erythematosus (SLE), posing a substantial risk to renal function and adversely affecting the quality of life of affected individuals. miRNAs play a crucial regulatory role in adaptive immune responses. However, the involvement of specific miRNAs in LN is rarely reported. This research aims to examine the clinical value of miR-7974, as well as the expression changes and interaction mechanisms of the miR-7974/DDAH1 axis in LN, and its impact on the pathogenesis of LN.

Methods

The expression levels of miR-7974 and DDAH1 were measured using real-time fluorescence quantification. CCK-8 was utilized to assess cell proliferation ability. ELISA was employed to quantify the levels of inflammatory factors. The binding of miR-7974 to DDAH1 was verified using a dual luciferase reporter gene assay.

Results

miR-7974 is highly expressed in blood samples from patients with LN and LPS-induced HRMCs, whereas DDAH1 is expressed at low levels. The ROC curve suggests that miR-7974 possesses diagnostic value. The knockdown of miR-7974 and the overexpression of DDAH1 both inhibit cell proliferation and reduce levels of inflammatory cytokines. Additionally, miR-7974 negatively regulates DDAH1.

Conclusions

miR-7974 plays a role in the progression of LN by negatively regulating DDAH1. The miR-7974/DDAH1 axis may serve as a non-invasive biomarker and a potential therapeutic target for the diagnosis of LN.