中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (33): 5360-5365.doi: 10.3969/j.issn.2095-4344.1832

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

在牙周炎样本中长链非编码RNA LINC00511表达增高并促进破骨细胞增殖

赵祥宇1,张桂荣2,郭传波3,史  春4,吴刘中5   

  1. 沈阳市口腔医院,1修复科,2正畸科,3口腔颌面外科,5牙周科,辽宁省沈阳市  110002;4大连医科大学口腔医学院,辽宁省大连市  116041
  • 修回日期:2019-05-23 出版日期:2019-11-28 发布日期:2019-11-28
  • 通讯作者: 吴刘中,博士,副主任医师,沈阳市口腔医院牙周科,辽宁省沈阳市 110002
  • 作者简介:赵祥宇,男,1981年生,辽宁省沈阳市人,满族,2010年中国医科大学毕业,硕士,副主任医师,主要从事口腔修复及种植研究。
  • 基金资助:

    辽宁省自然科学基金(20180550563),项目负责人:史春

Increased expression of long-chain non-coding RNA LINC00511 in periodontitis promotes osteoclast proliferation

Zhao Xiangyu1, Zhang Guirong2, Guo Chuanbo3, Shi Chun4, Wu Liuzhong5   

  1. 1Department of Prosthodontics, 2Department of Orthodontics, 3Department of Oral and Maxillofacial Surgery, 5Department of Periodontology, Stomatology Hospital of Shenyang, Shenyang 110002, Liaoning Province, China; 4Dalian Medical University School of Stomatology, Dalian 116041, Liaoning Province, China
  • Revised:2019-05-23 Online:2019-11-28 Published:2019-11-28
  • Contact: Wu Liuzhong, MD, Associate chief physician, Department of Periodontology, Stomatology Hospital of Shenyang, Shenyang 110002, Liaoning Province, China
  • About author:Zhao Xiangyu, Master, Associate chief physician, Department of Prosthodontics, Stomatology Hospital of Shenyang, Shenyang 110002, Liaoning Province, China
  • Supported by:

    the Natural Science Foundation of Liaoning Province, No. 20180550563 (to SC)

摘要:

文章快速阅读:

文题释义:
长链非编码RNA LINC00511:
定位在17号染色体q24.3区域,包含包括5个外显子。
破骨细胞:为多核细胞,由于破骨细胞本身生存周期较短,目前对于破骨细胞的培养主要采用破骨前体细胞,在体外对其进行诱导后形成成熟的破骨细胞。

 

摘要
背景:
LINC00511是一个较为全新的Lnc RNA,研究表明,lincRNA-ANRIL与牙周病的发生及发展密切相关。
目的:观察LINC00511在牙周炎中的表达情况及对破骨细胞的增殖及分化的影响。
方法:研究方案经沈阳市口腔医院伦理委员会批准,参与试验的患病个体及其家属对试验方案完全知情同意。取牙周炎患者及正畸拔牙患者的正常牙周膜组织(对照组),采用Realtime PCR检测牙周炎患者LINC00511、抗酒石酸酸性磷酸酶及cathepsin K的表达;取第3代的破骨前体细胞RAW264.7细胞进行破骨细胞诱导并鉴定。将LINC00511-siRNA转染破骨细胞,以未转染的破骨细胞为对照,Realtime PCR检测转染效率。采用100 μg/L的脂多糖作用于RAW264.7细胞0,24和48 h,检测LINC00511的表达;采用CCK8及抗酒石酸酸性磷酸酶检测LINC00511对破骨细胞的增殖及分化的影响。
结果与结论:①人牙周炎样本中LINC00511、抗酒石酸酸性磷酸酶及cathepsin K表达均显著高于对照组;②脂多糖作用于RAW264.7细胞LINC00511的表达随着时间增加而增高;③荧光显微镜观察及Realtime PCR检测结果均显示,与对照组相比,LINC00511-siRNA转染后细胞LINC00511表达显著降低(P < 0.05);④LINC00511促进破骨细胞的增殖及分化;⑤结果表明,在牙周炎样本中LINC00511表达增高,LINC00511可以促进破骨细胞的增殖。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0003-0194-8146(赵祥宇)

关键词: 破骨细胞, 牙周炎, RAW264.7细胞, 增殖, LINC00511, Lnc RNA

Abstract:

BACKGROUND: LINC00511 is a relatively new long-chain non-coding RNA (Lnc RNA). Studies have shown that lincRNA-ANRIL is closely related to the occurrence and development of periodontal disease.
OBJECTIVE: To study the expression of LINC00511 in periodontitis, and to explore LINC00511 effects on osteoblast proliferation and differentiation.
METHODS: The study protocol was approved by the Ethics Committee of Stomatology Hospital of Shenyang. Patients and their relatives were fully informed of study protocol and informed consent was signed prior to the inception of the trial. Periodontal ligament tissues were extracted from patients with periodontitis and patients undergoing orthodontic extraction (control group). The expression of LINC00511, tartrate-resistant acid phosphatase and cathepsin K in periodontitis patients was detected by real-time PCR. The third generation of osteoclast precursor cells RAW264.7 were induced to differentiate into osteoclasts and identified. LINC00511-siRNA was transfected into osteoclasts, and non-transfected osteoclasts were used as control. Transfection efficiency was detected by real-time PCR. RAW264.7 cells were cultured with 100 μg/L lipopolysaccharide for 0, 24, and 48 hours, and the expression of LINC00511 was detected. After LINC00511 transfection, proliferation and differentiation of osteoclasts were detected by cell counting kit-8 and tartrate-resistant acid phosphatase, respectively.
RESULTS AND CONCLUSION: The levels of LINC00511, tartrate-resistant acid phosphatase and cathepsin K in human periodontitis samples were markedly higher than those in the control group. The expression of LINC00511 was time-dependently increased in osteoclasts after lipopolysaccharide treatment. Findings from fluorescence microscopy and real-time PCR showed that the expression of LINC00511 was significantly decreased after LINC00511-siRNA transfection compared with the control group (P < 0.05). LINC00511 promoted the proliferation and differentiation of osteoclasts. To conclude, the expression of LINC00511 is increased in periodontitis samples, and LINC00511 can promote the proliferation of osteoclasts.

Key words: osteoclasts, periodontitis, RAW264.7 cells, proliferation, LINC00511, Lnc RNA

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