山东医药2024，Vol.64Issue(14)：18-21,4.DOI:10.3969/j.issn.1002-266X.2024.14.005
人小胶质细胞中促甲状腺激素受体的表达、分布及活性观察
Expression,distribution,and activity of TSHR in human microglia
摘要
Abstract
Objective To investigate the expression,distribution,and activity of thyroid-stimulating hormone receptor(TSHR)in human microglia(HMC3).Methods In this study,we used human microglial cells(HMC3)as the experimental group and human thyroid cells and hepatocytes as the controls.Reverse transcription polymerase chain reaction was used to detect the expression of TSHR mRNA to identify the transcript of TSHR mRNA.Western blotting and immunofluorescence staining analysis was used to detect TSHR protein level and the distribution in HMC3 cells.HMC3 cells were divided into the 0,20,50,100,200 ng/mL thyroid-stimulating hormone receptor-stimulat-ing antibody(TSAb)groups and negative control group.Each group was preincubated with 100 μmol/L phosphodies-terase inhibitor(IBMX)for 60 minutes.The corresponding concentrations of TSAb were added to cells of the TSAb groups and then they were incubated for 24 h.We measured cyclic adenosine monophosphate(cAMP)levels by immu-noassay kits to verify the functional activity of TSHR in HMC3 cells.Results TSHR mRNA was detected in HMC3 cells with the same sequence as mRNAs derived from human thyroid cells and hepatocytes.TSHR protein was ex-pressed in the cell membrane of HMC3 cells.Compared with the 0 ng/mL TSAb group,there was no significant statis-tical difference in cAMP levels in the 20 ng/mL TSAb group.However,cAMP levels increased in the 50,100,and 200 ng/mL TSAb groups,and the high-concentration group had higher cAMP levels than the low-concentration group(P<0.05 or P<0.01).Conclusion TSHR is expressed in the cell membrane of human microglia and has a signal-ing function.关键词
促甲状腺激素受体/小胶质细胞/促甲状腺激素受体刺激抗体/环磷酸腺苷Key words
thyroid-stimulating hormone receptor/microglial cells/thyroid-stimulating hormone receptor-stimulat-ing antibody/cyclic adenosine monophosphate分类
医药卫生引用本文复制引用
陈雪兰,傅士恩,匡雅琪,朱莹丽,黄振兴,杨海燕,罗佐杰..人小胶质细胞中促甲状腺激素受体的表达、分布及活性观察[J].山东医药,2024,64(14):18-21,4.基金项目
国家自然科学基金资助项目(82260159). （82260159）
