CIA是用牛II型胶原免疫诱导构建的
- 选择8周龄雄性Sprague-Dawley大鼠
- CIA建立前,采用1%戊巴比妥钠(40mg/kg)腹腔注射麻醉ink="true" href="https://www.zhihu.com/search?q=%E5%A4%A7%E9%BC%A0&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">大鼠。
- II型胶原在0.05 mol/L乙酸中溶解至4mg /mL。
- 采用电动均质器,将等量的不完全弗氏佐剂乳化制备ink="true" href="https://www.zhihu.com/search?q=%E8%83%B6%E5%8E%9F%E8%9B%8B%E7%99%BD&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">胶原蛋白。
- 取0.1 mL乳状液分别于第0天和第7天皮下接种ink="true" href="https://www.zhihu.com/search?q=CIA%E5%A4%A7%E9%BC%A0&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">CIA大鼠。
No.2
成纤维样滑膜细胞(FLSs)的分离和鉴定
成纤维样滑膜细胞(FLSs)的分离
实验前采用颈椎脱位安乐死。用ink="true" href="https://www.zhihu.com/search?q=%E8%83%B6%E5%8E%9F%E9%85%B6&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">胶原酶消化法获得FLSs细胞,用含1%氨苄西林和链霉素的PBS在冰上冲洗滑膜组织5次,然后将滑膜组织切片成1 mm3厚的薄片,置于含有0.2% ink="true" href="https://www.zhihu.com/search?q=II%E5%9E%8B%E8%83%B6%E5%8E%9F%E9%85%B6&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">II型胶原酶的培养皿中,并放置37℃培养箱。
整个过程中,每60min收集上清,1200 rpm离心5min,收集细胞颗粒,用培养基悬浮后,完全培养基培养,后经过200目不锈钢过滤器过滤,以1*105/cm2的密度接种在细胞培养瓶中,并在5% CO2、37℃培养箱中继续培养。当达到90%融合时,传代细胞,第2代细胞用于后续实验。
成纤维样滑膜细胞(FLSs)的鉴定
用Vimentin(波形蛋白)抗体对分离得到的ink="true" href="https://www.zhihu.com/search?q=FLSS%E7%BB%86%E8%83%9E&search_source=Entity&hybrid_search_source=Entity&hybrid_search_extra=%7B%22sourceType%22%3A%22article%22%2C%22sourceId%22%3A441657991%7D" target="_blank" class="css-1occaib" style="color: rgb(0, 102, 255); text-decoration-line: none; cursor: pointer;">FLSS细胞进行鉴定,将第2代FLSS细胞接种在细胞培养板中的载玻片上。
培养3天后,除去上清液,用4%多聚甲醛固定FLSS 20 min、TritonX渗透20 min、3%H2O2处理15 min,再用5%BSA孵育20 min后,将切片与抗-Vimentin抗体置湿盒中4℃孵育过夜。
第二天用PBS 3 min×5次洗去一抗,用滤纸擦去标本外的PBS,滴加生物素化二抗工作液,室温置湿盒中孵育20 min,用PBS 5min×3次洗去二抗,用滤纸擦去标本外的PBS,DAB显色剂显色,自来水充分冲洗后进行苏木素复染,脱水,透明,中性树胶封片。