中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (5): 928-935.doi: 10.12307/2025.296

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

lncRNA-TNFRSF13C调控miR-1246对牙周细胞低氧诱导因子1α的作用

白  静1,张  雪1,任  燕2,李月辉3,田晓宇4   

  1. 1唐山中心医院口腔科,河北省唐山市  063000;2唐山市丰润区人民医院,河北省唐山市  063000;3开滦(集团)有限责任公司唐家庄医院,河北省唐山市  063000;4遵化市人民医院,河北省遵化市  064200

  • 收稿日期:2023-11-20 接受日期:2024-03-13 出版日期:2025-02-18 发布日期:2024-06-03
  • 通讯作者: 张雪,副主任医师,唐山中心医院口腔科,河北省唐山市 063000
  • 作者简介:白静,女,1984年生,河北省遵化市人,汉族,硕士,主治医师,主要从事口腔牙周方面的研究。
  • 基金资助:
    河北省医学科学基金资助项目(20230240)

Effect of lncRNA-TNFRSF13C on hypoxia-inducible factor 1alpha in periodontal cells by modulation of #br# miR-1246 #br#

Bai Jing1, Zhang Xue1, Ren Yan2, Li Yuehui3, Tian Xiaoyu4   

  1. 1Department of Stomatology, Tangshan Central Hospital, Tangshan 063000, Hebei Province, China; 2Tangshan Fengrun District People’s Hospital, Tangshan 063000, Hebei Province, China; 3Kailuan (Group) Co., Ltd. Tangjiazhuang Hospital, Tangshan 063000, Hebei Province, China; 4Zunhua People’s Hospital, Zunhua 064200, Hebei Province, China
  • Received:2023-11-20 Accepted:2024-03-13 Online:2025-02-18 Published:2024-06-03
  • Contact: Zhang Xue, Associate chief physician, Department of Stomatology, Tangshan Central Hospital, Tangshan 063000, Hebei Province, China
  • About author:Bai Jing, Master, Attending physician, Department of Stomatology, Tangshan Central Hospital, Tangshan 063000, Hebei Province, China
  • Supported by:
    Hebei Provincial Medical Science Foundation, No. 20230240

摘要:



文题释义:
人牙周膜细胞:是存在于人牙周膜组织中的一种细胞类型。牙周膜是牙齿根部周围的软组织,包括牙槽骨、牙槽黏膜、牙齿周围的纤维连结组织以及血管、神经等。人牙周膜细胞参与牙周膜组织的形成和修复过程,当发生创伤或疾病导致牙周膜受损时,牙周膜细胞能够分化为不同类型的细胞,合成胶原蛋白、弹性纤维等,促进牙周膜组织的重建。
miRNA:是一类小分子非编码RNA分子,通常由20-22个核苷酸组成。它们广泛存在于真核生物的细胞内,并参与调节基因表达的过程。miRNA通过与靶基因的mRNA序列互补配对,可以在转录后水平对mRNA进行降解或抑制翻译,从而调控目标基因的表达。miRNA通过这种方式,参与调节多种生物学过程,包括细胞增殖、分化、凋亡、免疫应答等。

背景:LncRNA-TNFRSF13C是B细胞发育和功能中的一个重要因子,在牙周炎患者牙周组织中高表达,但具体机制还不清楚。
目的:探讨lncRNA-TNFRSF13C调控miR-1246对牙周细胞低氧诱导因子1α的作用机制 。
方法:人牙周膜细胞经过脂多糖处理后分为7组:A组(无转染的人牙周膜细胞株)、B组(人牙周膜细胞株转染TNFRSF13C NC-siRNA)、C组(人牙周膜细胞株转染TNFRSF13C-siRNA)、D组(人牙周膜细胞株转染miR-1246 mimics)、E组(人牙周膜细胞株转染miR-1246 siRNA)、F组(人牙周膜细胞株转染TNFRSF13C-siRNA+miR-1246 mimics)及G组(人牙周膜细胞株转染TNFRSF13C-siRNA+miR-1246 siRNA)。采用qRT-PCR检测各组细胞lncRNA-TNFRSF13C、miR-1246相对表达;CCK-8检测细胞活性;流式细胞仪检测细胞凋亡率;免疫印迹检测细胞中低氧诱导因子1α、血管内皮生长因子蛋白的表达;Pearson分析lncRNA-TNFRSF13C与miR-1246相关性,双荧光素酶分析靶向关系。
结果与结论:①A、B两组人牙周膜细胞活性、凋亡率及蛋白指标比较差异均无显著性意义(P > 0.05),与B组相比,C组细胞活性升高、凋亡率及低氧诱导因子1α、血管内皮生长因子蛋白降低(P < 0.05),与C组相比,D组细胞活性降低,凋亡率及低氧诱导因子1α、血管内皮生长因子蛋白均升高(P < 0.05),D组相比,E组细胞活性升高(P < 0.05),F组细胞活性低于E组,E、F组细胞凋亡率降低(P < 0.05),与F组相比,G组细胞活性升高、凋亡率及低氧诱导因子1α、血管内皮生长因子蛋白降低(P < 0.05)。②lncRNA-TNFRSF13C与miR-1246呈现正相关(P < 0.05)。③TNFRSF13C-siRNA组与TNFRSF13C-NC组在miR-1246-wt荧光活性降低(P < 0.05);与miR-1246-NC组相比,miR-1246 mimics组低氧诱导因子1α-wt、血管内皮生长因子-wt荧光活性升高(P < 0.05)。④结果说明,下调lncRNA-TNFRSF13C对脂多糖处理的牙周细胞具有促进活性、降低凋亡的作用,同时也可抑制低氧诱导因子1α、血管内皮生长因子的表达,其机制与调控miR-1246活性相关。

https://orcid.org/0009-0007-7331-3824(白静)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 牙周炎, 牙周膜细胞, 脂多糖, 炎症, miR-1246, lncRNA-TNFRSF13C

Abstract: BACKGROUND: LncRNA-TNFRSF13C, an important factor in B cell development and function, is expressed in periodontal tissues of patients with periodontitis, but the specific mechanism is still unclear.
OBJECTIVE: To investigate the mechanism of lncRNA-TNFRSF13C regulating miR-1246 on hypoxia-inducible factor 1α in periodontal cells. 
METHODS: Human periodontal ligament cells (hPDLCs) were treated with lipopolysaccharide and divided into group A (hPDLCs cell lines without transfection), group B (hPDLCs cell lines transfected with TNFRSF13C NC-siRNA), group C (hPDLCs cell lines transfected with TNFRSF13C-siRNA), group D (hPDLCs cell line transfected with miR-1246 mimics), group E (hPDLCs cell line transfected with miR-1246 siRNA), group F (hPDLCs cell line transfected with TNFRSF13C-siRNA+miR-1246 mimics), and group G (hPDLCs cell line transfected with TNFRSF13C-siRNA+miR-1246 siRNA). The relative expression of lncRNA-TNFRSF13C and miR-1246 in each group was detected by qRT-PCR. Cell counting kit-8 assay was used to detect cell viability. Apoptosis was detected by flow cytometry. Expression of hypoxia-inducible factor 1α and vascular endothelial growth factor proteins was detected by western blot. The correlation between lncRNA-TNFRSF13C and miR-1246 was analyzed by Pearson, and the targeting relationship was analyzed by dual-luciferase reporter assay.
RESULTS AND CONCLUSION: There was no significant difference in human periodontal ligament cell activity, apoptosis rate and protein indexes between groups A and B (P >0.05). Compared with group B, hPDLCS cell activity in group C was increased, and apoptosis rate and the expression of hypoxia-inducible factor 1α and vascular endothelial growth factor proteins were decreased (P < 0.05). Compared with group C, hPDLCS cell activity in group D was decreased, and apoptosis rate and the expression of hypoxia-inducible factor 1α and vascular endothelial growth factor proteins were increased (P < 0.05). Compared with group D, the cell activity of group E was increased (P < 0.05). The cell activity in group F was lower than that in group E, and the apoptosis rate was reduced in both groups E and F (P < 0.05). Compared with group F, the cell activity of group G was increased, and the apoptosis rate and the expression of hypoxia-inducible factor 1α and vascular endothelial growth factor were decreased (P < 0.05). LncRNA-TNFRSF13C was positively correlated with miR-1246 (P < 0.05). Compared with the TNFRSF13C-siRNA group, the fluorescence activity of miR-1246-wt in the TNFRSF13C-NC group was reduced (P > 0.05); compared with the miR-1246-NC group, the fluorescence activities of hypoxia-inducible factor 1α-wt and vascular endothelial growth factor-wt in the miR-1246 mimics group were increased (P < 0.05). To conclude, down-regulation of lncRNA-TNFRSF13C can promote the activity of periodontal cells treated with lipopolysaccharide, reduce apoptosis, and inhibit hypoxia-inducible factor 1α and vascular endothelial growth factor. The mechanism is related to the regulation of miR-1246 activity.


Key words: periodontitis, periodontal ligament cell, lipopolysaccharide, inflammation, miR-1246, lncRNA-TNFRSF13C

中图分类号: