欢迎来到天天文库
浏览记录
ID:15723183
大小:39.00 KB
页数:12页
时间:2018-08-05
《牛膝多糖对软骨细胞ⅱ型胶原及蛋白聚糖表达的影响》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、牛膝多糖对软骨细胞Ⅱ型胶原及蛋白聚糖表达的影响 【摘要】目的:探讨牛膝多糖(ABPS)对大鼠膝关节软骨细胞Ⅱ型胶原及蛋白聚糖表达的影响。方法:取4周龄健康SD大鼠10只,分离膝关节,刮下双侧膝关节表面软骨组织,采用机械-Ⅱ型胶原酶消化法获取膝关节软骨细胞。建立软骨细胞体外培养体系,倒置相差显微镜观察细胞形态,采用Ⅱ型胶原免疫组化法鉴定软骨细胞。体外培养到第2代软骨细胞,分别用0,50,100,200μg・mL-1的ABPS对软骨细胞进行干预。干预后,Westernblot检测各组Ⅱ型胶原、蛋白聚糖的表达变化,免疫荧光观察空白组与加药组Ⅱ型胶原的表达变化。结果:第2
2、代软骨细胞的形态学表明软骨细胞的典型特征:软骨细胞含有丰富的Ⅱ型胶原。Westernblot检测结果显示,ABPS促进软骨细胞Ⅱ型胶原表达,并且在100μg・mL-1时表达最高,差异有统计学意义(P0.05)。与空白组的Ⅱ型胶原荧光表达相比,ABPS干预后软骨细胞的Ⅱ型胶原荧光表达更强。结论:ABPS促进了软骨细胞Ⅱ型胶原及蛋白聚糖的表达【关键词】12骨关节炎;牛膝多糖;Ⅱ型胶原;蛋白聚糖;软骨细胞;大鼠EffectofABPSontheExpressionsofTypeⅡCollagenandProteoglycanofCartilageCellsMAYu-hua
3、n,ZHENGWen-wei,CHENHou-huang,SHAOXiang,CHENDa,YEHong-zhi,LIXi-hai【ABSTRACT】Objective:ToinvestigatetheeffectofAchyranthesbidentatapolysaccharides(ABPS)ontheexpressionsoftypeⅡcollagenandproteoglycanincartilagecells.Methods:Ten4-week-oldhealthySDratswereusedtoisolatethekneejoints,scrapeca
4、rtilaginoustissueoffthesurfaceofthekneejoint,andgetkneejointcartilagecellswiththemechanicaltypeⅡcollagenasedigestionmethod.Aninvitroculturesystemwasestablishedandthecellmorphologywasobservedwithaninvertedphasecontrastmicroscope.TypeⅡimmunohistochemistrymethodwasusedtoidentifythechondro
5、cytes.Bythesecondgenerationofin-vitro-culturedchondrocytes,ABPS(0,50,100,200μg・mL-1respectively)wasusedtointerfereinthecartilagecells.Afterintervention,WesternblotwasusedtodetecttheexpressionchangesoftypeⅡcollagenand12proteoglycanofeachgroup,andimmunofluorescencewasusedtoobservetheexpr
6、essionchangesoftypeⅡcollagenrespectivelyintheblankcontrolgroupandthedosinggroup.Results:ThemorphologyofthesecondgenerationchondrocytesshowedthatcartilagecellscontainedrichtypeⅡcollagen.WesternblotshowedthatABPSpromotedchondrocytetypeⅡcollagenandtheexpressionoftypeⅡcollagenwasthehighest
7、whentherewas100μg・mL-1ABPS,thedifferencebeingstatisticallysignificant(P0.05).Comparedwiththeblankcontrolgroup,theexpressionofintervenedcollagentypeⅡcollagenwasstronger.Conclusion:ABPSpromotestheexpressionoftypeⅡcollagenandproteoglycan.【Keywords】osteoarthritis;achyranthesbidentatapoly
此文档下载收益归作者所有