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人牙髓细胞的三维培养及其白细胞介素1β的表达

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摘要 目的通过体外三维培养牙髓细胞,观察牙髓细胞形成细胞集落时炎症因子白细胞介素1β(IL-1β)的表达水平,探讨牙髓炎症发生的可能机制。方法用U形底铺有琼脂糖的96孔板形成非黏附表面,每孔接种104个细胞形成三维培养体系。在细胞接种的0、24、48、72、96 h收集细胞,实时荧光定量PCR(qRT-PCR)检测体系中牙髓细胞IL-1βmRNA的表达水平,ELISA检测体系中牙髓细胞IL-1β蛋白的水平。结果光镜下可见牙髓细胞接种20 h后即可形成紧密的细胞聚集球体,培养至40 h,细胞球体聚集更紧密。与培养0 h的牙髓细胞相比,实时定量PCR检测发现三维培养24、48、72、96 h的牙髓细胞IL-1βmRNA表达水平明显增加,培养72、96 h牙髓细胞IL-1βmRNA表达量高于培养24 h的牙髓细胞;ELISA检测发现三维培养24、48、72、96 h的牙髓细胞较培养0 h的细胞IL-1β蛋白水平明显增高,且培养72、96 h牙髓细胞IL-1β蛋白量高于培养24 h的牙髓细胞。结论三维培养牙髓细胞形成细胞集落能诱导牙髓细胞自发性表达和释放IL-1β。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2016年第7期972-975,共4页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金(81371139) 陕西省社会发展科技攻关项目(2015SF157) 西安医学院博士科研启动基金项目(2015DOC21)
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