Objective To assess the effects of Yi Qi Jie Du Decoction(YQJDD)on nasopharyngeal carcinoma stem cells(NPC-SCs)and investigate the underlying mechanism.Methods NPC-SCs were collected in serum-free culture system and i...Objective To assess the effects of Yi Qi Jie Du Decoction(YQJDD)on nasopharyngeal carcinoma stem cells(NPC-SCs)and investigate the underlying mechanism.Methods NPC-SCs were collected in serum-free culture system and identified by the sphere formation assay.The effect of YQJDD on the proliferation of NPC-SCs was detected using the Cell Counting Kit-8 assay.The change of mitochondrial membrane potential(ΔΨm)in NPC-SCs following treatment with YQJDD was investigated by JC-1 staining.The levels of apoptosisassociated proteins were examined using western blot analysis.Results YQJDD significantly inhibited the proliferation of NPCSCs in dose-and time-dependent manners.JC-1 staining revealed that YQJDD lowered theΔΨm of NPC-SCs in a timedependent manner.After treatment with YQJDD,the expression of cleaved caspase-3,-7 and-9,cleaved poly-ADP ribose polymerase,P21 and P53 were increased,while the expression of Survivin in NPC-SCs was decreased.However,the expression of cleaved caspase-8 remained nearly unchanged.Conclusions YQJDD inhibits the growth and induces apoptosis of NPC-SCs via an intrinsic apoptosis pathway.展开更多
基金funding support from the National Natural Science Foundation of China (No. 81573721, No. 81874408 and No. 81973914)the Natural Science Foundation of Hunan (No. 2017JJ3246 and No. 2019JJ40216)Excellent Youth Fund of Hunan Provincial Education Department (No. 19B439)
文摘Objective To assess the effects of Yi Qi Jie Du Decoction(YQJDD)on nasopharyngeal carcinoma stem cells(NPC-SCs)and investigate the underlying mechanism.Methods NPC-SCs were collected in serum-free culture system and identified by the sphere formation assay.The effect of YQJDD on the proliferation of NPC-SCs was detected using the Cell Counting Kit-8 assay.The change of mitochondrial membrane potential(ΔΨm)in NPC-SCs following treatment with YQJDD was investigated by JC-1 staining.The levels of apoptosisassociated proteins were examined using western blot analysis.Results YQJDD significantly inhibited the proliferation of NPCSCs in dose-and time-dependent manners.JC-1 staining revealed that YQJDD lowered theΔΨm of NPC-SCs in a timedependent manner.After treatment with YQJDD,the expression of cleaved caspase-3,-7 and-9,cleaved poly-ADP ribose polymerase,P21 and P53 were increased,while the expression of Survivin in NPC-SCs was decreased.However,the expression of cleaved caspase-8 remained nearly unchanged.Conclusions YQJDD inhibits the growth and induces apoptosis of NPC-SCs via an intrinsic apoptosis pathway.
