重庆医学
重慶醫學
중경의학
CHONGQING MEDICAL JOURNAL
2013年
33期
4056-4058,4061
,共4页
代静澜%潘波%古平%牟海刚%白家驷
代靜瀾%潘波%古平%牟海剛%白傢駟
대정란%반파%고평%모해강%백가사
内皮祖细胞%蛋白酶激活受体-1%CXC型趋化因子受体4%细胞增殖%迁移
內皮祖細胞%蛋白酶激活受體-1%CXC型趨化因子受體4%細胞增殖%遷移
내피조세포%단백매격활수체-1%CXC형추화인자수체4%세포증식%천이
endothelial progenitor cells%protease-activated receptor 1%CXC receptor 4%cell proliferation%migration
目的:研究蛋白酶激活受体-1(PAR-1)活化后对小鼠内皮祖细胞(EPCs) CXC型趋化因子受体4(CXCR4) mRNA表达及细胞增殖、迁移的影响。方法分离鉴定小鼠 EPCs ,分别以不同浓度 PAR-1激活剂SFLLRN加入培养的EPCs中,以PAR-1小干扰RNA(siRNA)转染EPCs ,并设立空白对照组。采用荧光定量实时聚合酶链反应(RT-PCR)分析各组细胞PAR-1、CXCR4 mRNA表达;MTT法检测各组EPCs增殖情况;Transwell小室共培养分析各组EPCs的迁移能力。结果 SFLLRN激活组EPCs增殖率、迁移率及PAR-1、CXCR4 mRNA表达均较空白对照组、PAR-1特异siRNA转染组增高,差异有统计学意义( P<0.05)。CXCR4 mRNA与PAR-1 mRNA表达呈明显正相关(r=0.991)。结论 PAR-1可能通过促使CXCR4的表达增加,从而促进EPCs的增殖和迁移。
目的:研究蛋白酶激活受體-1(PAR-1)活化後對小鼠內皮祖細胞(EPCs) CXC型趨化因子受體4(CXCR4) mRNA錶達及細胞增殖、遷移的影響。方法分離鑒定小鼠 EPCs ,分彆以不同濃度 PAR-1激活劑SFLLRN加入培養的EPCs中,以PAR-1小榦擾RNA(siRNA)轉染EPCs ,併設立空白對照組。採用熒光定量實時聚閤酶鏈反應(RT-PCR)分析各組細胞PAR-1、CXCR4 mRNA錶達;MTT法檢測各組EPCs增殖情況;Transwell小室共培養分析各組EPCs的遷移能力。結果 SFLLRN激活組EPCs增殖率、遷移率及PAR-1、CXCR4 mRNA錶達均較空白對照組、PAR-1特異siRNA轉染組增高,差異有統計學意義( P<0.05)。CXCR4 mRNA與PAR-1 mRNA錶達呈明顯正相關(r=0.991)。結論 PAR-1可能通過促使CXCR4的錶達增加,從而促進EPCs的增殖和遷移。
목적:연구단백매격활수체-1(PAR-1)활화후대소서내피조세포(EPCs) CXC형추화인자수체4(CXCR4) mRNA표체급세포증식、천이적영향。방법분리감정소서 EPCs ,분별이불동농도 PAR-1격활제SFLLRN가입배양적EPCs중,이PAR-1소간우RNA(siRNA)전염EPCs ,병설립공백대조조。채용형광정량실시취합매련반응(RT-PCR)분석각조세포PAR-1、CXCR4 mRNA표체;MTT법검측각조EPCs증식정황;Transwell소실공배양분석각조EPCs적천이능력。결과 SFLLRN격활조EPCs증식솔、천이솔급PAR-1、CXCR4 mRNA표체균교공백대조조、PAR-1특이siRNA전염조증고,차이유통계학의의( P<0.05)。CXCR4 mRNA여PAR-1 mRNA표체정명현정상관(r=0.991)。결론 PAR-1가능통과촉사CXCR4적표체증가,종이촉진EPCs적증식화천이。
Objective To explore the effect of protease-activated receptor 1(PAR-1) activation on the expression of CXCR4 mR-NA of mouse endothelial progenitor cells (EPCs) and proliferation ,migration of EPCs .Methods Mouse EPCs were activated by different concentration of SFLLRN (one agonist of PAR-1) ,or transfected by small interfering RNA of PAR-1 .The expressions of PAR-1 and CXCR4 mRNA of EPCs were detected by fluorescent quantitative real-time PCR .Proliferation ,migration of EPCs were detected by MTT ,Transwell chambers respectively .Results The expressions of PAR-1 and CXCR4 mRNA in SFLLRN group were higher than that in other groups(P< 0 .05) .The expression of CXCR4 mRNA was highly positive correlation with PAR-1 mRNA(r=0 .991) .The proliferation ,migration of mouse EPCs were induced by activation of PAR-1 .Conclusion Activation of PAR-1 promotes cell proliferation and migration of mouse EPCs ,this effect may be depended on CXCR4 .