【摘要】 目的研究小鼠心肌上清液诱导小鼠骨髓瘤Sp2/0细胞凋亡的作用.方法在Sp2/0细胞培养孔中,分别加入不同稀释度(1∶6,1∶12,1∶24)的小鼠心肌上清液和环磷酰胺,24h后镜下观察细胞形态,并于48h后流式细胞仪检测凋亡细胞的比率;同时,Sp2/0细胞和小鼠心肌细胞共培养,10h后观察Sp2/0细胞形态学变化;并用不同稀释度(1∶5,1∶10,1∶20,1∶40)小鼠心肌裂解上清液、肝脏裂解上清液、胸腺裂解上清液及环磷酰胺诱导Sp2/0,HeLa,Hep-2和Vero细胞凋亡,并比较其差异.结果不同稀释度的心肌裂解上清液均可诱导Sp2/0细胞的凋亡,尤以高稀释度更明显;小鼠心肌细胞与Sp2/0细胞共培养10h后,少部分Sp2/0细胞出现凋亡;小鼠心肌裂解上清液、肝脏裂解上清液、胸腺裂解上清液均可引起Sp2/0,HeLa,Hep-2和Vero细胞发生凋亡,但小鼠心肌裂解上清液作用明显,且作用时间持久.结论小鼠心肌组织裂解上清液具有明显诱导小鼠骨髓瘤Sp2/0细胞凋亡的作用.更多还原

【Abstract】 AIM: To study the roles of mouse cardiac muscle lysate supernatant in inducing the apoptosis of mouse myeloma Sp2/0 cells. METHODS: Various concentrations (1∶[KG-*2/3]6, 1∶[KG-*2/3]12, 1∶[KG-*2/3]24) of mouse cardiac muscle lysate supernatant and cyclophosphamide were added into the Sp2/0 cell culture wells. After 24 h, microscope was used to observe the morphological changes of Sp2/0 cells and apoptosis rate was determined by flow cytometry after 48 h. Morphological changes of Sp2/0 cells co-cultured with mouse cardiac muscle cells were observed after 10 h. The apoptosis of Sp2/0, Hela, Hep-2 and Vero cells was induced with various concentrations (1∶[KG-*2/3]5, 1∶[KG-*2/3]10, 1∶[KG-*2/3]20 and 1∶[KG-*2/3]40) of mouse cardiac muscle lysate supernatant, liver lysate supernatant, thymus lysate supernatant and cyclophosphamide, and then the difference of apoptotic rate among them was compared. RESULTS: Mouse cardiac muscle lysate supernatant could induce the apoptosis of the Sp2/0 cells and the apoptotic rate increased in a concentration-dependent manner, but there was no difference between mouse cardiac muscle lysate supernatant group and cyclophosphamide group. After a 10-hour co-culture with mouse cardiac muscle cell lysate, the apoptosis of a few Sp2/0 cells was seen. The mouse cardiac muscle lysate supernatant, liver lysate supernatant and thymus lysate supernatant could all induce apoptosis of the Sp2/0, HeLa, Hep-2 and Vero cells. But the effect of the mouse cardiac muscle lysate supernatant was more obvious and permanent. CONCLUSION: The mouse cardiac muscle lysate supernatant can significantly induce apoptosis of mouse myeloma Sp2/0 cells.更多还原