中国病理生理杂志
中國病理生理雜誌
중국병리생리잡지
CHINESE JOURNAL OF PATHOPHYSIOLOGY
2014年
6期
1110-1113,1118
,共5页
储永良%黄清春%黄闰月%晏靖遥%陈秀敏%徐侦雄
儲永良%黃清春%黃閏月%晏靖遙%陳秀敏%徐偵雄
저영량%황청춘%황윤월%안정요%진수민%서정웅
关节炎,类风湿%血栓素A2 受体%环氧酶2%滑膜细胞
關節炎,類風濕%血栓素A2 受體%環氧酶2%滑膜細胞
관절염,류풍습%혈전소A2 수체%배양매2%활막세포
Arthritis,rheumatoid%Thromboxane A2 receptor%Cyclooxygenase-2%Synovial cells
目的:研究血栓素A2受体(thromboxane A2 receptor, TXA2R)作为环氧酶2(cyclooxygenase-2, COX-2)下游产物对类风湿关节炎(rheumatoid arthritis,RA)滑膜细胞增殖力和COX-2表达的影响。方法:利用细胞增殖与毒性检测试剂盒(MTS)检测TXA2R拮抗剂SQ29548和激动剂U46619对RA关节滑膜细胞MH7A增殖力的影响作用,并用real-time PCR检测它们对COX-2 mRNA表达的影响;利用BrdU细胞增殖检测法观察MH7A细胞在转染COX-2小干扰RNA(small interfering RNA, siRNA)后细胞增殖受抑制的情况及额外施加U46619的可能影响。结果:SQ29548和U46619分别具有抑制和促进MH7A细胞增殖力与COX-2 mRNA表达的作用,且U46619可在一定程度上重建由COX-2 siRNA所抑制的MH7A细胞增殖力。结论:TXA2通过其受体TXA2 R既可控制COX-2的表达,又可介导COX-2的细胞增殖效应,有可能作为RA治疗较为理想的新靶标。
目的:研究血栓素A2受體(thromboxane A2 receptor, TXA2R)作為環氧酶2(cyclooxygenase-2, COX-2)下遊產物對類風濕關節炎(rheumatoid arthritis,RA)滑膜細胞增殖力和COX-2錶達的影響。方法:利用細胞增殖與毒性檢測試劑盒(MTS)檢測TXA2R拮抗劑SQ29548和激動劑U46619對RA關節滑膜細胞MH7A增殖力的影響作用,併用real-time PCR檢測它們對COX-2 mRNA錶達的影響;利用BrdU細胞增殖檢測法觀察MH7A細胞在轉染COX-2小榦擾RNA(small interfering RNA, siRNA)後細胞增殖受抑製的情況及額外施加U46619的可能影響。結果:SQ29548和U46619分彆具有抑製和促進MH7A細胞增殖力與COX-2 mRNA錶達的作用,且U46619可在一定程度上重建由COX-2 siRNA所抑製的MH7A細胞增殖力。結論:TXA2通過其受體TXA2 R既可控製COX-2的錶達,又可介導COX-2的細胞增殖效應,有可能作為RA治療較為理想的新靶標。
목적:연구혈전소A2수체(thromboxane A2 receptor, TXA2R)작위배양매2(cyclooxygenase-2, COX-2)하유산물대류풍습관절염(rheumatoid arthritis,RA)활막세포증식력화COX-2표체적영향。방법:이용세포증식여독성검측시제합(MTS)검측TXA2R길항제SQ29548화격동제U46619대RA관절활막세포MH7A증식력적영향작용,병용real-time PCR검측타문대COX-2 mRNA표체적영향;이용BrdU세포증식검측법관찰MH7A세포재전염COX-2소간우RNA(small interfering RNA, siRNA)후세포증식수억제적정황급액외시가U46619적가능영향。결과:SQ29548화U46619분별구유억제화촉진MH7A세포증식력여COX-2 mRNA표체적작용,차U46619가재일정정도상중건유COX-2 siRNA소억제적MH7A세포증식력。결론:TXA2통과기수체TXA2 R기가공제COX-2적표체,우가개도COX-2적세포증식효응,유가능작위RA치료교위이상적신파표。
AIM:To examine the effects of thromboxane A 2 receptor ( TXA2 R) , the downstream product of cy-clooxygenase-2 (COX-2), on the proliferative ability and COX-2 expression in rheumatoid arthritis (RA) synovial cells. METHODS:The effects of TXA2 R antagonist SQ29548 and agonist U46619 on the proliferation of RA synovial cell line MH7A were detected by MTS cell proliferation assay , and their effects on COX-2 mRNA expression in MH7A cells were al-so examined by real-time PCR.In addition, the possible effect of U46619 on the proliferation of MH7A cells, when COX-2 was knocked down by siRNA , was determined by BrdU cell proliferation assay .RESULTS:SQ29548 inhibited the cell proliferation and the mRNA level of COX-2 while U46619 enhanced them.Moreover, U46619 reconstitute the proliferative ability of MH7A cells to some extent that inhibited by COX-2 siRNA.CONCLUSION: In RA synovial cells, TXA2R is able to control COX-2 expression, while it also mediates the effects of COX-2, suggesting that TXA2R might be an ideal candidate for RA treatment .