中文摘要：

目的：观察薯蓣皂苷片对类风湿性关节炎细胞模型核转录因子NF-κBp65及基质金属蛋白酶-9（MMP-9）、血管内皮生长因子（VEGF）、肿瘤坏死因子α（TNF-α）表达的影响。方法：用白介素-17（IL-17）＋TNF-α共同孵育大鼠RSC-364细胞,以不同浓度薯蓣皂苷片进行干预,MTT法检测不同药物浓度对细胞存活率影响,采用Western blot检测各组NF-κBp65及其抑制蛋白（IκB-α）的表达,酶联免疫吸附试验（ELISA）检测细胞培养液上清中VEGF、MMP-9、TNF-α蛋白水平的变化。结果：薯蓣皂苷片可促进κB抑制蛋白的表达量,降低NF-κB蛋白水平的高表达,并降低细胞分泌VEGF、MMP-9、TNF-α水平。结论：薯蓣皂苷片对RSC-364细胞核因子κB有负向调节作用,提升IκB-α的表达并能降低炎性因子和血管新生因子分泌,提示其在类风湿发病中可能起到潜在的调节作用。

英文摘要：

This study was aimed to observe the influence of Discornin Tablets on activation nuclear transcription factor NF-κBp65 of rheumatoid arthritis （RA） cell model as well as the expression of MMP-9, VEGF and tumor necrosis factor-α （TNF-α）. Interleukin-17 （IL-17） and TNF-α were used for stimulating RSC-364 cells. Discornin Tablets at different concentrations were used for intervention. The influence of Discornin Tablets in different concentrations on cell viability was detected by MTT method. Expressions of NF-κBp65 and its inhibitory protein （IκB-α） in each group were detected by western blot method. Changes in VEGF, MMP-9 and TNF-α protein levels in cell broth supernatant were checked by ELISA. The results showed that Discornin Tablets can promote the expression of κB inhibitory protein, reduce the high expression of NF-κB protein level, and inhibit the cellular secretion of VEGF, MMP-9 and TNF-α. It was concluded that Discornin Tablets had negative regulation effect on nuclear transcription factor κB of RSC-364 cells. It can increase the expression of IκB-α, as well as reduce the secretion of inflammation factors and blood vessel newborn factors. It suggested that Discornin Tablets may have the potential regulation effect on RA.