【摘要】 目的 建立永生化的人甲状旁腺细胞系并进行功能鉴定。方法 采用慢病毒感染的方式将SV40（simian vacuolating virus 40,SV40）大T抗原导入细胞，转染后用嘌呤霉素筛选转染成功的细胞。通过细胞形态学、实时荧光定量聚合酶链式反应（real time quantitative polymerase chain reaction,RT-qPCR）及免疫荧光检测转染后传代甲状旁腺细胞表达甲状旁腺激素（parathyroid hormone,PTH）、钙敏感受体（calcium sensitive receptor,CaSR）和神经胶质细胞缺失因子2（glial cells missing homolog 2,GCM2）mRNA及蛋白的表达情况。通过细胞增殖实验检测转染的细胞对Ca²⁺的反应性。结果 转染成功的甲状旁腺细胞传代后大部分呈梭形，细胞核椭圆形，胞浆均质透明；RT-qPCR结果显示甲状旁腺细胞表达CaSR、GCM2以及PTH mRNA；免疫荧光显示永生化的甲状旁腺细胞系表达甲状旁腺相关蛋白CaSR、GCM2以及PTH。细胞增殖实验显示低钙能够促进甲状旁腺细胞系增殖。结论 本研究成功建立了永生化的甲状旁腺细胞系，为进一步探讨继发性甲状旁腺功能亢进的发病机制及治疗提供了实验基础。更多还原

【Abstract】 Objective To establish an immortalized human parathyroid cell line and to identify its functions. Methods SV40（Simian vacuolating virus 40, SV40） large antigen was introduced into the parathyroid cells by lentivirus infection, and the transfected cells were screened by puromycin. The expressions of parathyroid hormone（PTH）, calcium sensitive receptor（CaSR） and glial cells missing homolog 2,（GCM2） mRNAs and proteins in the parathyroid cells were detected by cell morphology, RT-qPCR and immunofluorescence.The reactivity of transfected cells to Ca²⁺was detected by cell proliferation assay. Results Most of the transfected parathyroid cells were fusiform, with oval nuclei and transparent cytoplasm. RT-qPCR showed that the parathyroid cells expressed CaSR, GCM2 and PTH m RNAs. Immunofluorescence showed that the immortalized parathyroid cell line expressed parathyroid associated proteins of CaSR, GCM2 and PTH. Cell proliferation experiments showed that low calcium could promote the proliferation of parathyroid cells. Conclusion An immortalized parathyroid cell line was successfully established in this study, which provides an experimental basis for further exploring the pathogenesis and treatment of secondary hyperparathyroidism.更多还原