中国免疫学杂志
中國免疫學雜誌
중국면역학잡지
CHINESE JOURNAL OF IMMUNOLOGY
2014年
8期
1015-1018
,共4页
张慧%宗明%李牛%虞珊珊%孙立山%范列英
張慧%宗明%李牛%虞珊珊%孫立山%範列英
장혜%종명%리우%우산산%손립산%범렬영
类风湿关节炎%成纤维样滑膜细胞%蛋白异天冬氨酰甲基转移酶%细胞凋亡
類風濕關節炎%成纖維樣滑膜細胞%蛋白異天鼕氨酰甲基轉移酶%細胞凋亡
류풍습관절염%성섬유양활막세포%단백이천동안선갑기전이매%세포조망
Rheumatoid arthritis%Fibroblast-like synoviocytes%Protein isoaspartyl-methyltransferase%Cell apoptosis
目的:探讨蛋白异天冬氨酰甲基转移酶(Protein isoaspartyl-methyltransferase,PIMT)过表达对类风湿关节炎(Rheumatoid arthritis,RA)成纤维样滑膜细胞(Fibroblast-like synoviocytes,FLS)凋亡的影响。方法:构建PIMT表达载体,转染RA-FLS细胞,检测PIMT在RA-FLS细胞表达水平,观察转染后RA-FLS细胞的凋亡情况。结果:转染后的RA-FLS细胞PIMT mRNA和蛋白质表达水平上升,与正常对照和转染空载体的RA-FLS细胞阴性对照相比较,转然后RA-FLS细胞的凋亡增加。结论:PIMT在RA-FLS细胞中表达下降是RA-FLS细胞凋亡减少的一个重要原因,PIMT在RA-FLS细胞增殖/凋亡失调中起作用。
目的:探討蛋白異天鼕氨酰甲基轉移酶(Protein isoaspartyl-methyltransferase,PIMT)過錶達對類風濕關節炎(Rheumatoid arthritis,RA)成纖維樣滑膜細胞(Fibroblast-like synoviocytes,FLS)凋亡的影響。方法:構建PIMT錶達載體,轉染RA-FLS細胞,檢測PIMT在RA-FLS細胞錶達水平,觀察轉染後RA-FLS細胞的凋亡情況。結果:轉染後的RA-FLS細胞PIMT mRNA和蛋白質錶達水平上升,與正常對照和轉染空載體的RA-FLS細胞陰性對照相比較,轉然後RA-FLS細胞的凋亡增加。結論:PIMT在RA-FLS細胞中錶達下降是RA-FLS細胞凋亡減少的一箇重要原因,PIMT在RA-FLS細胞增殖/凋亡失調中起作用。
목적:탐토단백이천동안선갑기전이매(Protein isoaspartyl-methyltransferase,PIMT)과표체대류풍습관절염(Rheumatoid arthritis,RA)성섬유양활막세포(Fibroblast-like synoviocytes,FLS)조망적영향。방법:구건PIMT표체재체,전염RA-FLS세포,검측PIMT재RA-FLS세포표체수평,관찰전염후RA-FLS세포적조망정황。결과:전염후적RA-FLS세포PIMT mRNA화단백질표체수평상승,여정상대조화전염공재체적RA-FLS세포음성대조상비교,전연후RA-FLS세포적조망증가。결론:PIMT재RA-FLS세포중표체하강시RA-FLS세포조망감소적일개중요원인,PIMT재RA-FLS세포증식/조망실조중기작용。
To prove the influence of protein isoaspartyl-methyltransferase ( PIMT ) on the cell apoptosis of fibroblast-like synoviocytes of RA.Methods: The expression vector of PIMT was constructed and transfected in to the RA-FLS, the impact of PIMT on the cell apoptosis of RA-FLS was observed by overexpressing the vector of PIMT.Results:The mRNA and protein level of PIMT in RA-FLS was increased after transfected the vector of PIMT into RA-FLS;compared with the normal cultured RA-FLS and the RA-FLS transfected with the empty vectors ,the cell apoptosis level was also increased.Conclusion:The decreased expression level of PIMT in RA-FLS is an important reason for reduce apoptosis of RA-FLS,and PIMT can affect the imbalance of proliferation/ap-optosis in the RA-FLS.