中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (23): 3615-3620.doi: 10.3969/j.issn.2095-4344.2723

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

全基因组表达谱芯片在筛选慢性牙周炎相关基因中的作用

吴  慧1,许  诺2,王  倩3,史  春3,姜  龙2   

  1. 1海南医学院第一附属医院口腔科,海南省海口市  5701022大连医科大学中山学院,辽宁省大连市  116000;3大连医科大学口腔医学院,辽宁省大连市  116000
  • 收稿日期:2019-12-02 修回日期:2019-12-04 接受日期:2020-01-10 出版日期:2020-08-18 发布日期:2020-04-26
  • 通讯作者: 姜龙,讲师,大连医科大学中山学院,辽宁省大连市 116000
  • 作者简介:吴慧,女,1985年生,硕士,主治医师,主要从事口腔基础医学科研、口腔内科学的研究。 共同第一作者:许诺,女,1984年生,硕士,副教授,主治医师,主要从事口腔医学相关教学与研究。
  • 基金资助:
    辽宁省自然科学基金(20180550563)

Screening chronic periodontitis-related genes using whole-genome expression profiling

Wu Hui1, Xu Nuo2, Wang Qian3, Shi Chun3, Jiang Long2   

  1. 1Department of Stomatology, the First Affiliated Hospital of Hainan Medical University, Haikou 570102, Hainan Province, China; 2Zhongshan College of Dalian Medical University, Dalian 116000, Liaoning Province, China; 3School of Stomatology, Dalian Medical University, Dalian 116000, Liaoning Province, China
  • Received:2019-12-02 Revised:2019-12-04 Accepted:2020-01-10 Online:2020-08-18 Published:2020-04-26
  • Contact: Jiang Long, Lecturer, Zhongshan College of Dalian Medical University, Dalian 116000, Liaoning Province, China
  • About author:Wu Hui, Master, Attending physician, Department of Stomatology, the First Affiliated Hospital of Hainan Medical University, Haikou 570102, Hainan Province, China Xu Nuo, Master, Associate professor, Attending physician, Zhongshan College of Dalian Medical University, Dalian 116000, Liaoning Province, China Wu Hui and Xu Nuo contributed equally to this work.
  • Supported by:
    the Natural Science Foundation of Liaoning Province, No. 20180550563

摘要:

文题释义:

全基因组表达谱芯片:通过高通量平行检测基因的一种优越技术手段,可以在全基因的范围中检测慢性牙周炎的差异基因,进而快速的从分子水平为慢性牙周炎的治疗提供实验基础。

PI3K/Akt信号通路:广泛存在于各种细胞中,在细胞的增殖、分化、存活、凋亡、炎症等方面发挥着重要作用,并且该信号通路参与了以骨破坏为主要特征的骨质疏松、骨关节炎、骨肉瘤等疾病中。PI3K是位于细胞内的一种磷脂酰肌醇3激酶,可以激活丝氨酸/苏氨酸激酶Akt后,激活下游因子,进而影响细胞的增殖与凋亡。

背景:全基因组表达谱芯片是一种用于基因表达研究的技术手段,具有高度敏感性以及特异性,它可以在全基因组范围内检测与慢性牙周炎相关的差异基因,从而高效快速地发现与慢性牙周炎密切相关的因子。

目的:应用全基因组表达谱芯片筛选慢性牙周炎相关基因。

方法:选取15例正畸拔牙患者正常牙周膜组织作为对照组,21例慢性牙周炎患者牙周组织。比对4例慢性牙周炎组织和4例正常组织的全基因组表达谱芯片,筛选出上调基因及下调基因。通过Real-Time PCR(7例正常及13例患者)和Western Blot(4例正常及4例患者)对2组牙周膜组织中差异基因PI3K-Akt信号通路的表达进行验证。实验方案由海南医学院第一附属医院伦理委员会批准(批准号:HNM20180034)并获得所有患者的知情同意。

结果与结论:①全基因组表达谱芯片结果分析发现慢性牙周炎样本中均存在显著差异表达的上调基因1 565个,下调基因1 849个;②富集分析发现其中在慢性牙周炎中PI3K-Akt信号通路表达有显著差异(P < 0.001);③Real-Time PCR及Western Blot 检测发现PI3K及Akt的mRNA和蛋白在慢性牙周炎中较对照组表达高(P < 0.05);④结果说明,全基因组表达谱芯片在筛选慢性牙周炎相关基因的改变时具有快速且高敏感度等特点。PI3K-Akt信号通路在慢性牙周炎表达出现明显差异,为慢性牙周炎的治疗提供实验依据。

ORCID: 0000-0002-5099-3878(吴慧);0000-0002-4258-2470(许诺)

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:

慢性牙周炎, 全基因组表达谱芯片, PI3K, Akt, GO分析, 上调基因, 下调基因

Abstract:

BACKGROUND: Whole-genome expression profiling is a technical method for gene expression research, with high sensitivity and specificity. This technique can be used to detect differential genes related to chronic periodontitis in the whole genome, therefore efficiently and quickly finding chronic periodontitis-related factors.

OBJECTIVE: To screen genes related to chronic periodontitis by using the whole-genome expression profiling.

METHODS: Normal periodontal ligament tissue of 15 patients with orthodontic extraction was selected as control group, and periodontal tissue of 21 patients with chronic periodontitis was selected as experimental group. To screen up-regulated and down-regulated genes. the genome-wide expression profile chips of four chronic periodontitis tissues and four healthy tissues were compared. The expression of the differential gene PI3K-Akt signal pathway was verified by real-time PCR (7 normal cases and 13 cases of chronic periodontitis) and western blot (4 normal cases and 4 cases of chronic periodontitis). The experimental protocol was approved by the Ethics Committee of the First Affiliated Hospital of Hainan Medical University (approval No. HNM20180034) and informed consent was obtained from each patient.

RESULTS AND CONCLUSION: Analysis of the whole genome expression profile chip revealed that 1 565 up-regulated genes and 1 849 down-regulated genes were significantly differentially expressed in chronic periodontitis samples. The enrichment analysis revealed that the expression of PI3K-Akt signaling pathway was significantly different in chronic periodontitis (P < 0.001). Real-time PCR and western blot assay results indicated that PI3K and Akt expression was higher in the experimental group than in the control group (P < 0.05). All the findings indicate that the genome-wide expression profile chip is fast and highly sensitive to screen the changes in chronic periodontitis-related genes. Significantly differential expression of PI3K-Akt signal pathway in chronic periodontitis provides an experimental basis for the treatment of chronic periodontitis.

Key words: chronic periodontitis, genome-wide expression profile chip, PI3K, AKT, GO analysis, up-regulated gene, down-regulated gene

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