产品详情
本产品不提供地塞米松,客户需自备或者选择使用 试剂一 分化诱导剂 替代。
基本操作(仅供参考)
1.接种细胞:取对数生长期的细胞,按照2×104cells/cm2的细胞密度接种至包被后的培养器皿中,于37℃,5% CO2培养环境下培养至融合度60-70%,弃掉上清,加入成骨诱导分化培养基。
2.细胞分化诱导:每2-3天更换成骨诱导培养基,于37℃,5%CO2培养环境下培养,并注意观察细胞形态变化(一般约14~28天左右)。根据细胞钙盐结晶析出和钙质结节形成的情况,决定终止细胞诱导的时间,进行染色鉴定。
3.细胞固定:吸去培养基使用适量1×PBS清洗一次,弃去后取适量4%中性甲醛溶液覆盖培养器皿底面,室温固定30-60 min,弃去固定液再使用1×PBS清洗两次。
4.茜素红染色:加入适量茜素红染液染3~5min,吸去茜素红染液,用1×PBS清洗两次,并加入适量1×PBS避免细胞干燥。
5.诱导评估:显微镜下观察成骨染色效果,并进行图像采集和诱导评估。诱导成功时,钙质结节会与茜素红染料结合后呈现红色或橘红色。
6.半定量分析:显微观察结束后,弃上清,加入氯化十六烷基吡啶溶液,室温下孵育15~60min溶解矿化结节(茜素红),然后在562 nm处检测上清的OD值。
使用本产品的案例(仅供参考)
In Vitro
Cell(PDLSCs and GMSCs;10 nM dexamethasone, 10 mM β-glycerophosphate , and 50 mg/l ascorbic acid;4 weeks)
Multilineage differentiation assays were applied to detect the pluripotency of PDLSCs and GMSCs.For osteogenic or adipogenic induction, 2 × 105cells were seeded in 6-well dishes and cultured in osteogenic medium or adipogenic medium for 4 weeks, then the cells were fixed with 4% paraformaldehyde and stained with Alizarin Red (Solarbio, Beijing, China) or Oil Red O (Solarbio). ... ...The osteogenic medium was the complete culture medium supplemented with 10 nM dexamethasone(Solarbio), 10 mM β-glycerophosphate (Solarbio), and 50 mg/l ascorbic acid (Solarbio).The adipogenic medium was the complete culture medium supplemented with 1 μM dexamethasone (Solarbio), 0.2 mM indomethacin (Solarbio), 0.01 g/l insulin (Solarbio), and 0.5 mM isobutyl-methylxanthine(Solarbio).
来源文献:Jia L, Zhang Y, Ji Y, Li X, Xing Y, Wen Y, Huang H, Xu X. Comparative analysis of lncRNA and mRNA expression profiles between periodontal ligament stem cells and gingival mesenchymal stem cells. Gene. 2019 May 30;699:155-164. doi: 10.1016/j.gene.2019.03.015. Epub 2019 Mar 12. PMID: 30876821.