人β防御素在牙髓组织中的表达及与炎症因子的关系  

Expression of human β-defensin and its relationship with inflammatory factor in human dental pulp tissue

作　　者：翟越[1] 黄枧英 朴玄 纪芳[3] 费照亮[4] 陶疆[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院.口腔医学院口腔综合科上海市口腔医学重点实验室上海市口腔医学研究所国家口腔疾病临床研究中心,上海200011 [2]江西省妇幼保健院新生儿疾病筛查中心中心实验室,江西南昌330002 [3]上海交通大学医学院附属第九人民医院.口腔医学院口腔正畸科上海市口腔医学重点实验室上海市口腔医学研究所国家口腔疾病临床研究中心,上海200011 [4]中国科学院上海生命科学研究院生物化学与细胞生物学研究所,上海200031

出　　处：《上海口腔医学》2017年第4期368-373,共6页Shanghai Journal of Stomatology

基　　金：国家自然科学基金(81200756;81500813);上海高校高峰高原学科建设项目

摘　　要：目的:探讨人β防御素(humanβ-defensin,HBD)家族成员在人牙髓组织中的表达,以HBD2为代表,探讨HBD在牙髓炎症反应中所受调控及HBD家族成员之间的调节关系。方法:在NCBI GEO Profiles数据库中检索HBD在人牙髓组织中表达的基因芯片信息,并运用反转录聚合酶链式反应(RT-PCR)进行验证。运用4种炎症因子TNF-α、IL-1α、IL-1β和IL-6不同组合刺激人牙髓细胞,采用实时荧光定量核酸扩增检测法(qPCR)检测相应组分对HBD2表达水平的影响;HBD110预处理及LPS刺激牙髓细胞后,采用qPCR方法检测TNF-α、IL-1α和HBD2的表达水平。采用GraphPad Prism 5.01对实验组和对照组的结果进行统计学分析。结果:在NCBI GEO Profiles数据库中检索到27种HBD家族成员在人牙髓组织中表达。TNF-α、IL-1α、IL-1β和IL-6联合作用,可显著提升HBD2的表达水平。HBD110通过调控TNF-α和IL-1α的表达,提高HBD2的表达水平。结论:除已有报道的HBD1、HBD2、HBD3和HBD4外,其他HBD家族成员在人牙髓组织中表达,且HBD2在牙髓组织中受炎症因子及其他HBD家族成员的调控。PURPOSE： To investigate the expression of human β-defensin （HBD） in human dental pulp tissue and to explore the regulation of HBD in pulp inflammation and the relationship among HBD family members. METHODS： The gene expression of HBD in human dental pulp tissue was assessed in NCBI GEO profiles and was verified by RT-PCR. Human dental pulp cells were stimulated with TNF-α, IL-1α, IL-1β and IL-6 in different combinations and the expression of HBD2 was analyzed by qPCR. Human dental pulp cells were pretreated with HBD110 and then stimulated with LPS and the expression of TNF-α,IL-1α and HBD2 were analyzed by qPCR. GraphPad Prism 5.01 was used toanalyze the results of the experimental and the control groups. RESULTS： 27 HBDs were found to express in human dental pulp tissue in NCBI GEO Profiles. The joint overexpression of TNF-α, IL-1α, IL-1β and IL-6 increased the expression of HBD2; HBD110 increased the expression of HBD2 by increasing the expression of TNF-α and IL-1α. CONCLUSIONS： Many other HBDs have positive expression in human dental pulp issue besides of HBD1, HBD2, HBD3, HBD4 and the inflammation factors and other HBDs can regulate the expression of HBD2 in dental pulp.

关 键 词：人β防御素 牙髓 炎症反应 

分 类 号：R781.3[医药卫生—口腔医学]