天津医药 ›› 2024, Vol. 52 ›› Issue (3): 231-236.doi: 10.11958/20230719

• 细胞与分子生物学 • 上一篇    下一篇

LncRNA FEZF1-AS1靶向调控miR-200c-3p对人肺成纤维细胞生物学行为的影响

满君1(), 高艳艳1, 宋龙飞2, 高福生1,()   

  1. 1.潍坊医学院附属医院呼吸内科(邮编261035),2.康复医学科
  • 收稿日期:2023-05-19 修回日期:2023-08-12 出版日期:2024-03-15 发布日期:2024-03-13
  • 通讯作者: E-mail:gaofs888@163.com
  • 作者简介:满君(1988),女,主治医师,主要从事中医药治疗呼吸系统疾病方面的研究。E-mail:manjun0229@126.com
  • 基金资助:
    国家自然科学基金资助项目(82205079)

The effect of lncRNA FEZF1-AS1 targeting regulation of miR-200c-3p on biological behaviors of human lung fibroblasts

MAN Jun1(), GAO Yanyan1, SONG Longfei2, GAO Fusheng1,()   

  1. 1. Department of Respiratory Medicine, 2. Department of Rehabilitation Medicine, Affiliated Hospital of Weifang Medical University, Weifang 261035, China
  • Received:2023-05-19 Revised:2023-08-12 Published:2024-03-15 Online:2024-03-13
  • Contact: E-mail: gaofs888@163.com

摘要:

目的 探讨FEZ家族锌指1-反义RNA1(LncRNA FEZF1-AS1)靶向调控miR-200c-3p对人肺成纤维细胞HLF生物学行为的影响。方法 采用转化生长因子β1(TGF-β1)诱导HLF向肌成纤维细胞转化,分为空白对照组(Blank组)和造模组(HLF+TGF-β1组),另根据转染质粒不同将细胞分为Blank组、TGF-β1+Si LncRNA FEZF1-AS1 NC组和TGF-β1+Si LncRNA FEZF1-AS1组。采用Western blot法检测α-平滑肌肌动蛋白(α-SMA)、Ⅰ型胶原蛋白(CollagenⅠ)和波形蛋白(Vimentin)蛋白的表达。采用实时荧光定量PCR(qRT-PCR)检测LncRNA FEZF1-AS1和miR-200c-3p的表达。采用CCK-8法检测细胞增殖,细胞划痕实验检测迁移能力,Transwell实验检测侵袭能力;采用双萤光素酶实验检测FEZF1-AS1与miR-200c-3p的靶向作用关系。结果 与Blank组比较,HLF+TGF-β1组α-SMA、CollagenⅠ、Vimentin蛋白表达及LncRNA FEZF1-AS1表达水平升高,miR-200c-3p表达水平降低(P<0.05);与TGF-β1+Si LncRNA FEZF1-AS1 NC组比较,TGF-β1+Si LncRNA FEZF1-AS1组细胞增殖、迁移、侵袭能力下降,LncRNA FEZF1-AS1表达及α-SMA、CollagenⅠ、Vimentin蛋白表达水平降低,miR-200c-3p表达水平升高(P<0.05);FEZF1-AS1与miR-200c-3p基因序列上存在结合位点。结论 LncRNA FEZF1-AS1通过抑制miR-200c-3p促进特发性肺间质纤维化的发生、发展。

关键词: 特发性肺间质纤维化, 肺成纤维细胞, 肌成纤维细胞, FEZ家族锌指1-反义RNA1, 微小RNA-200c-3p

Abstract:

Objective To investigate the effect of FEZ family zinc finger 1-antisense RNA 1 (LncRNA FEZF1-AS1) targeting regulation of miR-200c-3p expression on biological behaviors of human lung fibroblasts (HLF). Methods Transforming growth factor β1 (TGF-β1) was used to induce the transformation of HLF into myofibroblasts, which were divided into the Blank group and the model group (HLF+TGF-β1 group). According to different transfection plasmid, cells were divided into the Blank group, the TGF-β1+Si LncRNA FEZF1-AS1 NC group and the TGF-β1+Si LncRNA FEZF1-AS1 group. The protein expressions of α-SMA, Collagen Ⅰ and Vimentin were detected by Western blot assay. The expressions of LncRNA FEZF1-AS1 and miR-200c-3p were detected by quantitative real-time PCR (qRT-PCR). Cell proliferation ability was detected by CCK-8 method, migration ability was detected by cell scratch experiment and invasion ability was detected by Transwell assay. The targeting relationship between FEZF1-AS1 and miR-200c-3p was detected by dual-luciferase reporter assay. Results Compared with the Blank group, protein expressions of α-SMA, Collagen Ⅰ, Vimentin and the expression of LncRNA FEZF1-AS1 were increased in the HLF+TGF-β1 group (P<0.05), and the expression of miR-200c-3p was decreased (P<0.05). Compared with the TGF-β1+Si LncRNA FEZF1-AS1 NC group, cell proliferation, migration, invasion ability, LncRNA FEZF1-AS1 expression, protein expressions of α-SMA, Collagen Ⅰ and Vimentin were decreased in the TGF-β1+Si LncRNA FEZF1-AS1 group (P<0.05), and the expression of miR-200c-3p was increased (P<0.05). There were binding sites between miR-200c-3p and FEZF1-AS1 gene sequence. Conclusion LncRNA FEZF1-AS1 promotes the formation and progression of idiopathic pulmonary interstitial fibrosis by inhibiting miR-200c-3p.

Key words: idiopathic pulmonary interstitial fibrosis, lung fibroblasts, myofibroblasts, FEZ family zinc finger 1-antisense RNA1, microRNA-200c-3p

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