目的探讨Destrin蛋白在氧化型低密度脂蛋白(oxygenized low density lipoprotein,oxLDL)损伤人颈动脉内皮细胞过程中的作用和机制。方法人颈动脉内皮细胞给予剂量梯度的oxLDL(0、5、25、100μg/ml)刺激24h,检测细胞中Destrin蛋白的表达...目的探讨Destrin蛋白在氧化型低密度脂蛋白(oxygenized low density lipoprotein,oxLDL)损伤人颈动脉内皮细胞过程中的作用和机制。方法人颈动脉内皮细胞给予剂量梯度的oxLDL(0、5、25、100μg/ml)刺激24h,检测细胞中Destrin蛋白的表达变化;通过RNA干扰的方式下调颈动脉内皮细胞中Destrin的表达,观察其对oxLDL刺激诱导的颈动脉内皮细胞损伤的影响,同时检测单核细胞趋化蛋白1(MCP-1)和细胞间黏附分子1(ICAM-1)的表达水平。结果与oxLDL刺激对照RNAi比较,oxLDL刺激RNAi MCP-1和ICAM-1蛋白表达明显增加[(734.2±113.4)pg/ml vs(502.1±96.7)pg/ml,(152.5±22.0)pg/ml vs(94.2±16.5)pg/ml,P<0.05];细胞活力明显减低[0.41±0.05 vs 0.62±0.06,P<0.05],细胞凋亡明显增高[(50±10)%vs(32±8)%,P<0.05]。结论oxLDL损伤颈动脉内皮细胞的过程中,Destrin蛋白表达下调是oxLDL的损伤机制之一。展开更多
In recent years,Wnt/β-catenin signaling has been identified as a key player in embryogenesis and human diseases.Canonical Wnt signaling pathway is controlled by a variety of classic molecules like Wnt,β-catenin,Axin...In recent years,Wnt/β-catenin signaling has been identified as a key player in embryogenesis and human diseases.Canonical Wnt signaling pathway is controlled by a variety of classic molecules like Wnt,β-catenin,Axin,APC,GSK-3β and CK1,which interact and coordinate to regulate the expressions of cell signaling molecules.The latest evidences suggest that some components of the Wnt/β-catenin signaling,like APC,GSK-3β,CK1,Dkk2 and WISE,play dual roles different from what they have been thought previously.Here we reviewed some recent discoveries on the canonical Wnt/β-catenin signaling pathway to provide some new ideas and principles for signaling transduction studies.展开更多
文摘目的探讨Destrin蛋白在氧化型低密度脂蛋白(oxygenized low density lipoprotein,oxLDL)损伤人颈动脉内皮细胞过程中的作用和机制。方法人颈动脉内皮细胞给予剂量梯度的oxLDL(0、5、25、100μg/ml)刺激24h,检测细胞中Destrin蛋白的表达变化;通过RNA干扰的方式下调颈动脉内皮细胞中Destrin的表达,观察其对oxLDL刺激诱导的颈动脉内皮细胞损伤的影响,同时检测单核细胞趋化蛋白1(MCP-1)和细胞间黏附分子1(ICAM-1)的表达水平。结果与oxLDL刺激对照RNAi比较,oxLDL刺激RNAi MCP-1和ICAM-1蛋白表达明显增加[(734.2±113.4)pg/ml vs(502.1±96.7)pg/ml,(152.5±22.0)pg/ml vs(94.2±16.5)pg/ml,P<0.05];细胞活力明显减低[0.41±0.05 vs 0.62±0.06,P<0.05],细胞凋亡明显增高[(50±10)%vs(32±8)%,P<0.05]。结论oxLDL损伤颈动脉内皮细胞的过程中,Destrin蛋白表达下调是oxLDL的损伤机制之一。
文摘In recent years,Wnt/β-catenin signaling has been identified as a key player in embryogenesis and human diseases.Canonical Wnt signaling pathway is controlled by a variety of classic molecules like Wnt,β-catenin,Axin,APC,GSK-3β and CK1,which interact and coordinate to regulate the expressions of cell signaling molecules.The latest evidences suggest that some components of the Wnt/β-catenin signaling,like APC,GSK-3β,CK1,Dkk2 and WISE,play dual roles different from what they have been thought previously.Here we reviewed some recent discoveries on the canonical Wnt/β-catenin signaling pathway to provide some new ideas and principles for signaling transduction studies.
