天津医药
天津醫藥
천진의약
TIANJIN MEDICAL JOURNAL
2014年
2期
97-100
,共4页
曾敏%吴智勇%郑茵%何扬利%费毅%刘肖君
曾敏%吳智勇%鄭茵%何颺利%費毅%劉肖君
증민%오지용%정인%하양리%비의%류초군
小干扰RNA%模拟缺血再灌注%人脐静脉内皮细胞%促炎因子
小榦擾RNA%模擬缺血再灌註%人臍靜脈內皮細胞%促炎因子
소간우RNA%모의결혈재관주%인제정맥내피세포%촉염인자
siRNA%mimic ischemic/reperfusion%human umbilical vein endothelial cells%pro-inflammatory factors
目的:通过小干扰RNA(siRNA)研究沉默p65对人脐静脉内皮细胞(HUVECs)再灌注损伤后肿瘤坏死因子(TNF)-α和细胞间黏附分子(ICAM)-1水平的影响。方法实验分正常+siRNA阴性转染组、模拟缺血再灌注+siRNA阴性转染组、正常+p65 siRNA转染组和模拟缺血再灌注+p65 siRNA转染组4组。采用逆转录-聚合酶链式反应和酶联免疫吸附法分别检测p65 siRNA对TNF-α、ICAM-1 mRNA和蛋白表达水平的影响。结果模拟缺血再灌注+siRNA阴性转染组的TNF-α和ICAM-1的mRNA表达水平(分别是4.96±0.16、3.33±0.30)均高于其他3组,模拟缺血再灌注+p65 siRNA转染组的ICAM-1 mRNA表达水平(1.87±0.21)高于正常+siRNA阴性转染组(1.58±0.15)和正常+p65 siRNA转染组(1.69±0.21,均P<0.05)。模拟缺血再灌注+siRNA阴性转染组TNF-α、ICAM-1的蛋白表达水平[分别是(329.98±12.18)μg/L、(654.74±64.79)μg/L]均高于其他3组,模拟缺血再灌注+p65 siRNA转染组TNF-α、ICAM-1的蛋白表达水平[分别是(129.65±22.42)μg/L、(185.76±11.27)μg/L]均低于正常+siRNA阴性转染组[分别是(183.50±11.77)μg/L、(280.43±13.76)μg/L,均P<0.05]。结论 p65 siRNA通过沉默p65抑制模拟缺血再灌注诱导的TNF-α和ICAM-1表达水平。
目的:通過小榦擾RNA(siRNA)研究沉默p65對人臍靜脈內皮細胞(HUVECs)再灌註損傷後腫瘤壞死因子(TNF)-α和細胞間黏附分子(ICAM)-1水平的影響。方法實驗分正常+siRNA陰性轉染組、模擬缺血再灌註+siRNA陰性轉染組、正常+p65 siRNA轉染組和模擬缺血再灌註+p65 siRNA轉染組4組。採用逆轉錄-聚閤酶鏈式反應和酶聯免疫吸附法分彆檢測p65 siRNA對TNF-α、ICAM-1 mRNA和蛋白錶達水平的影響。結果模擬缺血再灌註+siRNA陰性轉染組的TNF-α和ICAM-1的mRNA錶達水平(分彆是4.96±0.16、3.33±0.30)均高于其他3組,模擬缺血再灌註+p65 siRNA轉染組的ICAM-1 mRNA錶達水平(1.87±0.21)高于正常+siRNA陰性轉染組(1.58±0.15)和正常+p65 siRNA轉染組(1.69±0.21,均P<0.05)。模擬缺血再灌註+siRNA陰性轉染組TNF-α、ICAM-1的蛋白錶達水平[分彆是(329.98±12.18)μg/L、(654.74±64.79)μg/L]均高于其他3組,模擬缺血再灌註+p65 siRNA轉染組TNF-α、ICAM-1的蛋白錶達水平[分彆是(129.65±22.42)μg/L、(185.76±11.27)μg/L]均低于正常+siRNA陰性轉染組[分彆是(183.50±11.77)μg/L、(280.43±13.76)μg/L,均P<0.05]。結論 p65 siRNA通過沉默p65抑製模擬缺血再灌註誘導的TNF-α和ICAM-1錶達水平。
목적:통과소간우RNA(siRNA)연구침묵p65대인제정맥내피세포(HUVECs)재관주손상후종류배사인자(TNF)-α화세포간점부분자(ICAM)-1수평적영향。방법실험분정상+siRNA음성전염조、모의결혈재관주+siRNA음성전염조、정상+p65 siRNA전염조화모의결혈재관주+p65 siRNA전염조4조。채용역전록-취합매련식반응화매련면역흡부법분별검측p65 siRNA대TNF-α、ICAM-1 mRNA화단백표체수평적영향。결과모의결혈재관주+siRNA음성전염조적TNF-α화ICAM-1적mRNA표체수평(분별시4.96±0.16、3.33±0.30)균고우기타3조,모의결혈재관주+p65 siRNA전염조적ICAM-1 mRNA표체수평(1.87±0.21)고우정상+siRNA음성전염조(1.58±0.15)화정상+p65 siRNA전염조(1.69±0.21,균P<0.05)。모의결혈재관주+siRNA음성전염조TNF-α、ICAM-1적단백표체수평[분별시(329.98±12.18)μg/L、(654.74±64.79)μg/L]균고우기타3조,모의결혈재관주+p65 siRNA전염조TNF-α、ICAM-1적단백표체수평[분별시(129.65±22.42)μg/L、(185.76±11.27)μg/L]균저우정상+siRNA음성전염조[분별시(183.50±11.77)μg/L、(280.43±13.76)μg/L,균P<0.05]。결론 p65 siRNA통과침묵p65억제모의결혈재관주유도적TNF-α화ICAM-1표체수평。
Objective To investigate the effect and regulation mechanism of mimic ischemia/reperfusion (I/R) cul-ture of human umbilical vein endothelial cells (HUVECs) on levels of tumor necrosis factor(TNF)-αand intercellular adhe-sion molecule (ICAM)-1. Methods HUVECs were randomly divided into four groups:control group (normal media cell cul-ture+control siRNA transfection), mimic I/R+control siRNA transfection group (HUVECs were transfected with control siR-NA, for 48 h ,and then received mimic ischemic media culture for 30 min followed by normal media culture for 4 h), normal culture+p65 siRNA transfection group and mimic I/R+p65 siRNA transfection group. The expression levels of TNF-αand ICAM-1 mRNA and protein were determined by real-time PCR and enzyme linked immunosorbent assay (ELISA), respec-tively. Results The mRNA and supernatant protein levels of TNF-αand ICAM-1 were significantly increased in mimic I/R culture group (4.96±0.16 and 3.33±0.30)μg/L than those of other tree groups (P<0.05). The level of ICAM-1 mRNA was significantly higher in I/R+p65 siRNA transfection group (1.87±0.21)μg/L than that of control group (1.58±0.15) μg/L and normal culture+p65 siRNA transfection group [(1.69±0.21)μg/L, P<0.05]. The levels of TNF-αand ICAM-1proteins were (329.98 ± 12.18) μg/L and (654.74 ± 64.79) μg/L in mimic I/R+control siRNA transfection group, which were significantly higher than those of other three groups (P<0.05). The levels of TNF-αand ICAM-1 proteins were (129.65±22.42)μg/L and (185.76±11.27)μg/L in mimic I/R+p65 siRNA transfection group, which were significantly lower than those of contro group [(183.50±11.77)μg/L and (280.43±13.76)μg/L, P<0.05]. Conclusion The silencing of p65 through transfection of p65 siRNA in HUVECs inhibited mimic I/R-induced mRNA and protein expressions of TNF-αand ICAM-1.