医学分子生物学杂志 ›› 2026, Vol. 23 ›› Issue (2): 116-126.doi: 10.3870/j.issn.1672-8009.2026.02.002

• 论著 • 上一篇    下一篇

lncRNA SNHG14靶向miR-181a-5p/PRDX3轴对IL-1β诱导的软骨细胞损伤的影响

宋凯林1, 罗燕宁1, 方红育2   

  1. 1黄石市中心医院手足显微外科 湖北省黄石市,435000
    2武汉市第三医院骨一科 武汉市,430000
  • 收稿日期:2025-07-15 出版日期:2026-03-31 发布日期:2026-04-03
  • 通讯作者: 罗燕宁(E-mail:rwytde@163.com)
  • 基金资助:
    武汉市医学科研项目(No.WX19D14)

Effect of LncRNA SNHG14 on IL-1β-Induced Chondrocyte Injury by Targeting miR-181a-5p/PRDX3 Axis

SONG Kailin1, LUO Yanning1, FANG Hongyu2   

  1. 1Department of Hand and Foot Microsurgery,Huangshi Central Hospital,Huangshi,Hubei,435000,China
    2Department of Orthopedics,Wuhan Third Hospital,Wuhan,430000,China
  • Received:2025-07-15 Online:2026-03-31 Published:2026-04-03
  • Contact: LUO Yanning(E-mail:rwytde@163.com)
  • Supported by:
    Wuhan Medical Research Project(No.WX19D14)

摘要: 目的 探讨长链非编码RNA小核仁RNA宿主基因14(long non-coding rna small nucleolar RNA host gene 14,lncRNA SNHG14)靶向微小RNA-181a-5p(microRNA-181a-5p,miR-181a-5p)/过氧化物还原酶3(peroxiredoxin 3,PRDX3)轴对白细胞介素(interleukin,IL)-1β诱导的软骨细胞损伤的影响。方法 双荧光素酶实验检测lncRNA SNHG14、miR-181a-5p和PRDX3靶向关系。人软骨细胞C28/I2分为以下10组:NC组、IL-1β组、sh-NC组、sh-SNHG14组、sh-SNHG14+anti-NC组、sh-SNHG14+anti-miR-181a-5p组、miR-NC组、miR-181a-5p mimic组、miR-181a-5p mimic+pcDNA-NC组、miR-181a-5p mimic+pcDNA-PRDX3组。克隆形成实验、流式细胞术分别检测细胞增殖和凋亡情况;酶联吸附免疫法检测IL-6、肿瘤坏死因子α(tumor necrosis factor alpha,TNF-α)、单核细胞趋化蛋白1(monocyte chemoattractant protein 1,MCP-1)水平;Griess试剂法检测一氧化氮(nitric oxide,NO)水平;蛋白质印迹检测PRDX3、增殖细胞核抗原(proliferating cell nuclear antigen,PCNA)、细胞周期蛋白(Cyclin D1)、B细胞淋巴瘤/白血病-2(B-cell lymphoma 2,Bcl-2)、Bcl-2家族相关X蛋白(Bcl2-associated X protein,Bax)蛋白表达量。结果 双荧光素酶实验结果显示miR-181a-5p与lncRNA SNHG14、PRDX3均存在靶向关系(P<0.05)。与NC组比较,IL-1β组细胞凋亡率,IL-6,TNF-α,MCP-1,NO水平,lncRNA SNHG14表达量,PRDX3,Bax蛋白表达量明显上升,miR-181a-5p表达量,集落形成数量,PCNA、Cyclin D1、Bcl-2蛋白表达水平明显下降(P<0.05);与sh-NC组或miR-NC组相比,sh-SNHG14组或miR-181a-5p mimic组细胞中miR-181a-5p表达量,集落形成数量,PCNA、Cyclin D1、Bcl-2蛋白表达水平明显升高,细胞凋亡率,IL-6、TNF-α、MCP-1、NO水平,lncRNA SNHG14表达量,PRDX3和Bax蛋白表达量明显降低(P<0.05);与sh-SNHG14+anti-NC组比较,sh-SNHG14+anti-miR-181a-5p组细胞中各项检测指标变化趋势与之相反(P<0.05);而miR-181a-5p mimic+pcDNA-PRDX3组细胞的各指标趋势均与miR-181a-5p mimic+pcDNA-NC组相反(P<0.05)。结论 lncRNA SNHG14通过靶向miR-181a-5p/PRDX3轴缓解IL-1β诱导的软骨细胞损伤。

关键词: 小核仁RNA宿主基因14, 微小RNA-181a-5p, 过氧化物还原酶3, 骨关节炎

Abstract: Objective To explore the effect of long non coding RNA small nucleolar RNA host gene 14(lncRNA SNHG14)on interleukin(IL)-1β-induced chondrocyte injury by targeting the microRNA-181a-5p(miR-181a-5p)/peroxiredoxin3 (PRDX3) axis.Methods The targeting relationships among lncRNA SNHG14,miR-181a-5p,and PRDX3 were detected using dual-luciferase reporter assay.Human chondrocytes C28/I2 were used to set up the following 10 groups:NC group,IL-1β group,sh-NC group,sh-SNHG14 group,sh-SNHG14+anti-NC group,sh-SNHG14+anti-miR-181a-5p group,miR-NC group,miR-181a-5p mimic group,miR-181a-5p mimic+pcDNA-NC group,miR-181a-5p mimic+pcDNA-PRDX3 group.Cell proliferation and apoptosis were assessed using colony formation assay and flow cytometry,respectively.The levels of IL-6,tumor necrosis factor-alpha(TNF-α),and monocyte chemoattractant protein 1(MCP-1)were measured by enzyme-linked immunosorbent assay.Nitric oxide(NO)level was detected using Griess reagent.Western blotting was performed to determine the expression levels of PRDX3,proliferating cell nuclear antigen(PCNA),Cyclin D1,B-cell lymphoma 2(Bcl-2),and Bcl-2-associated X protein(Bax).Results Dual luciferase assay indicated the targeting relationships between miR-181a-5p and both lncRNA SNHG14 and PRDX3(P<0.05).Compared with the NC group,the IL-1β group showed significantly increased apoptosis rate,IL-6,TNF-α,MCP-1,and NO levels,as well as elevated expression levels of lncRNA SNHG14,PRDX3,and Bax protein,and decreased miR-181a-5p expression,colony formation number,and protein levels of PCNA,Cyclin D1,and Bcl-2(P<0.05).Compared with the sh-NC group or miR-NC group,the sh-SNHG14 group or miR-181a-5p mimic group exhibited significantly higher miR-181a-5p expression level,colony formation number,and protein expression level of PCNA,Cyclin D1,and Bcl-2,along with notably reduced apoptosis rate,IL-6,TNF-α,MCP-1,and NO levels,as well as decreased expression levels of lncRNA SNHG14,PRDX3,and Bax protein(P<0.05).In contrast to the sh-SNHG14+anti-NC group,the sh-SNHG14+anti-miR-181a-5p group demonstrated opposite trends in all above detected indicators(P<0.05).Similarly,all trends of the above index in the miR-181a-5p mimic+pcDNA-PRDX3 group were reversed compared with those in the miR-181a-5p mimic+pcDNA-NC group(P<0.05).Conclusion LncRNA SNHG14 alleviates IL-1β-induced chondrocyte injury by targeting the miR-181a-5p/PRDX3 axis.

Key words: small nucleolar RNA host gene 14, microRNA-181a-5p, peroxiredoxin 3, osteoarthritis

中图分类号: