中国全科医学
中國全科醫學
중국전과의학
CHINESE GENERAL PRACTICE
2014年
20期
2353-2356
,共4页
倪晓辰%陈砚凝%武新慧%张爱莉%赵志红
倪曉辰%陳硯凝%武新慧%張愛莉%趙誌紅
예효신%진연응%무신혜%장애리%조지홍
膀胱肿瘤%去甲氧基姜黄素%细胞增殖%细胞凋亡
膀胱腫瘤%去甲氧基薑黃素%細胞增殖%細胞凋亡
방광종류%거갑양기강황소%세포증식%세포조망
Urinarybladderneoplasms%Demethoxyhaleniasidecurcumin%Cellproliferation%Apoptosis
目的:探讨去甲氧基姜黄素( DmC)对人膀胱癌T24细胞增殖及凋亡的影响。方法将人膀胱癌T24细胞株用含10%胎牛血清( FBS)的RPmI-1640培养基培养,并将细胞分为实验组和对照组。实验组细胞加入不同浓度的 DmC (10、20、40、80、160μm )进行孵育,对照组加入等体积二甲基亚砜( DmSO )进行孵育。采用3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐(mTT)实验检测DmC对T24细胞增殖活力的影响,流式细胞术检测T24细胞凋亡率,Western印迹法检测DmC对T24细胞作用的分子机制。结果实验组用不同浓度的DmC孵育48 h后,细胞增殖活力均低于对照组( P﹤0.05)。用不同浓度的DmC(20、40、80μm)处理T24细胞48 h,增殖细胞核抗原(PCNA)相对表达量均低于对照组,p27相对表达量均高于对照组(P﹤0.05);且随DmC浓度的增加PCNA相对表达量逐渐减低,p27相对表达量逐渐增高。不同浓度的DmC(20、40、80μm)处理T24细胞48 h后,细胞凋亡率均高于对照组( P﹤0.05);pro-caspase 3、cleaved-caspase 3、pro-PARP、cleaved-PARP的相对表达量与对照组比较,差异均有统计学意义( P﹤0.05)。用浓度为40μm的DmC分别刺激T24细胞0、15、30、60、120 min,采用Western印迹法检测与细胞增殖密切相关的mTOR通路磷酸化的变化显示,不同时间点p-mTOR的相对表达量比较,差异有统计学意义( P﹤0.05);且刺激30、60、120 min时的p-mTOR的相对表达量均低于0 min时( P﹤0.05);而不同时间点mTOR的相对表达量比较,差异无统计学意义(P﹥0.05)。结论 DmC可抑制人膀胱癌T24细胞的增殖,并诱导该细胞凋亡,其分子机制可能与Caspase 3的激活和mTOR通路的抑制有关,对于临床上膀胱癌的治疗有较广阔的应用价值。
目的:探討去甲氧基薑黃素( DmC)對人膀胱癌T24細胞增殖及凋亡的影響。方法將人膀胱癌T24細胞株用含10%胎牛血清( FBS)的RPmI-1640培養基培養,併將細胞分為實驗組和對照組。實驗組細胞加入不同濃度的 DmC (10、20、40、80、160μm )進行孵育,對照組加入等體積二甲基亞砜( DmSO )進行孵育。採用3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴鹽(mTT)實驗檢測DmC對T24細胞增殖活力的影響,流式細胞術檢測T24細胞凋亡率,Western印跡法檢測DmC對T24細胞作用的分子機製。結果實驗組用不同濃度的DmC孵育48 h後,細胞增殖活力均低于對照組( P﹤0.05)。用不同濃度的DmC(20、40、80μm)處理T24細胞48 h,增殖細胞覈抗原(PCNA)相對錶達量均低于對照組,p27相對錶達量均高于對照組(P﹤0.05);且隨DmC濃度的增加PCNA相對錶達量逐漸減低,p27相對錶達量逐漸增高。不同濃度的DmC(20、40、80μm)處理T24細胞48 h後,細胞凋亡率均高于對照組( P﹤0.05);pro-caspase 3、cleaved-caspase 3、pro-PARP、cleaved-PARP的相對錶達量與對照組比較,差異均有統計學意義( P﹤0.05)。用濃度為40μm的DmC分彆刺激T24細胞0、15、30、60、120 min,採用Western印跡法檢測與細胞增殖密切相關的mTOR通路燐痠化的變化顯示,不同時間點p-mTOR的相對錶達量比較,差異有統計學意義( P﹤0.05);且刺激30、60、120 min時的p-mTOR的相對錶達量均低于0 min時( P﹤0.05);而不同時間點mTOR的相對錶達量比較,差異無統計學意義(P﹥0.05)。結論 DmC可抑製人膀胱癌T24細胞的增殖,併誘導該細胞凋亡,其分子機製可能與Caspase 3的激活和mTOR通路的抑製有關,對于臨床上膀胱癌的治療有較廣闊的應用價值。
목적:탐토거갑양기강황소( DmC)대인방광암T24세포증식급조망적영향。방법장인방광암T24세포주용함10%태우혈청( FBS)적RPmI-1640배양기배양,병장세포분위실험조화대조조。실험조세포가입불동농도적 DmC (10、20、40、80、160μm )진행부육,대조조가입등체적이갑기아풍( DmSO )진행부육。채용3-(4,5-이갑기새서-2)-2,5-이분기사담서추염(mTT)실험검측DmC대T24세포증식활력적영향,류식세포술검측T24세포조망솔,Western인적법검측DmC대T24세포작용적분자궤제。결과실험조용불동농도적DmC부육48 h후,세포증식활력균저우대조조( P﹤0.05)。용불동농도적DmC(20、40、80μm)처리T24세포48 h,증식세포핵항원(PCNA)상대표체량균저우대조조,p27상대표체량균고우대조조(P﹤0.05);차수DmC농도적증가PCNA상대표체량축점감저,p27상대표체량축점증고。불동농도적DmC(20、40、80μm)처리T24세포48 h후,세포조망솔균고우대조조( P﹤0.05);pro-caspase 3、cleaved-caspase 3、pro-PARP、cleaved-PARP적상대표체량여대조조비교,차이균유통계학의의( P﹤0.05)。용농도위40μm적DmC분별자격T24세포0、15、30、60、120 min,채용Western인적법검측여세포증식밀절상관적mTOR통로린산화적변화현시,불동시간점p-mTOR적상대표체량비교,차이유통계학의의( P﹤0.05);차자격30、60、120 min시적p-mTOR적상대표체량균저우0 min시( P﹤0.05);이불동시간점mTOR적상대표체량비교,차이무통계학의의(P﹥0.05)。결론 DmC가억제인방광암T24세포적증식,병유도해세포조망,기분자궤제가능여Caspase 3적격활화mTOR통로적억제유관,대우림상상방광암적치료유교엄활적응용개치。
Objective ToinvestigatetheeffectsofDemethoxycurcumin(DmC)onbladdercancercells.Methods HumanbladdercancercelllineT24containing10%fetalbovineserum(FBS)culturedonRPmI-1640medium,andthecells were divided into study group and control group. The study group cells with different concentrations of DmC(10,20,40,80, 160 μm)incubation,such as control group to join volume dimethyl sulfoxide( DmSO)incubation. The effect of DmC on T24 cell proliferation activity was detected by mTT assay,T24 cell apoptosis rate by flow cytometry( FCm),the molecular mecha-nismofeffectofDmConT24cellsbyWesternblot.Results Thecellproliferationactivitywaslowerinstudygroupthanincon-trol group after 48 h of incubation in different concentrations of DmC(P﹤0. 05). After treating T24 cells with different concen-trations of DmC(20,40,80 μm)for 48 h,the relative expression of proliferating cell nuclear antigen( PCNA)was lower, p27 relative expression higher in study group than in control group(P﹤0. 05). And with the increase of DmC concentration, PCNA relative expression reduced gradually,p27 relative expression increased gradually. After treating T24 cells with different concentrations of DmC(20,40,80 μm)for 48 h,apoptosis rate was higher in study group than in control group(P﹤0. 05), and there was significant difference in relative expressions of pro -caspase 3,cleaved -caspase 3,pro -PARP,cleaved -PARP between 2 groups(P﹤0. 05). Using 40 μm of DmC to stimulate T24 cells for minutes 0,15,30,60,120,respec-tively,Western blot detecting the changes of mTOR pathway phosphorylation closely associated with cell proliferation showed that there was significant difference in p-mTOR relative expressions at different time points between 2 groups(P﹤0. 05),and low- <br> er at minutes 30,60,120 than at minute 0(P﹤0. 05). There was no difference in mTOR relative expression(P﹤0. 05). Con-clusion DmCcaninhibitT24cellproliferationofbladdercancerandinduceitsdeath,themolecularmechanismofwhichmaybe related to Caspase 3 activation and mTOR pathway inhibition,which is of a wide use value in clinical treatment of bladder cancer.