中华医学超声杂志(电子版)
中華醫學超聲雜誌(電子版)
중화의학초성잡지(전자판)
CHINESE JOURNAL OF MEDICAL ULTRASOUND(ELECTRONICAL VISION)
2014年
3期
67-70
,共4页
林艳端%申锷%南淑良%胡兵
林豔耑%申鍔%南淑良%鬍兵
림염단%신악%남숙량%호병
超声检查%微泡%前列腺肿瘤%细胞凋亡
超聲檢查%微泡%前列腺腫瘤%細胞凋亡
초성검사%미포%전렬선종류%세포조망
Ultrasonography%Microbubbles%Prostatic neoplasms%Apoptosis
目的:采用正交实验设计法,优化低频(20 kHz)低功率超声联合微泡诱导人雄激素非依赖型前列腺癌DU145细胞早期凋亡的条件。方法以超声功率、微泡/细胞悬液体积比及超声辐照时间为正交优化的3个因素,每个因素设定3个水平,分别为超声功率60、80、100 mW,微泡/细胞悬液体积比10%、20%、30%,超声辐照时间30、60、90 s,根据三因素三水平设计正交实验表,得到9个实验组,按相应条件采用连续波辐照,辐照后细胞继续培养24 h,采用流式细胞术检测细胞早期凋亡。应用正交优化得到的最优组合条件超声辐照实验组DU145细胞,对照组细胞不予超声辐照,采用流式细胞术、透射电镜检测、观察实验组及对照组细胞早期凋亡。结果3个因素对细胞早期凋亡的影响程度为:超声功率>微泡/细胞悬液体积比>超声辐照时间。各个因素不同水平对细胞早期凋亡的影响程度分别为:超声功率:80 mW>60 mW>100 mW,微泡/细胞悬液体积比:20%>30%>10%,超声辐照时间:60 s>90 s>30 s。最优组合条件下,实验组细胞早期凋亡率为10.41%,对照组细胞早期凋亡率为0.94%。透射电镜下可见实验组细胞较对照组细胞的体积变小变圆,空泡增多,可见明显的凋亡小体形成。结论低频超声联合微泡诱导人雄激素非依赖型前列腺癌DU145细胞早期凋亡的最优组合条件为:超声功率80 mW,微泡/细胞悬液体积比20%,超声辐照时间60 s。在此条件下实验组早期细胞凋亡率与对照组相比有明显差异。
目的:採用正交實驗設計法,優化低頻(20 kHz)低功率超聲聯閤微泡誘導人雄激素非依賴型前列腺癌DU145細胞早期凋亡的條件。方法以超聲功率、微泡/細胞懸液體積比及超聲輻照時間為正交優化的3箇因素,每箇因素設定3箇水平,分彆為超聲功率60、80、100 mW,微泡/細胞懸液體積比10%、20%、30%,超聲輻照時間30、60、90 s,根據三因素三水平設計正交實驗錶,得到9箇實驗組,按相應條件採用連續波輻照,輻照後細胞繼續培養24 h,採用流式細胞術檢測細胞早期凋亡。應用正交優化得到的最優組閤條件超聲輻照實驗組DU145細胞,對照組細胞不予超聲輻照,採用流式細胞術、透射電鏡檢測、觀察實驗組及對照組細胞早期凋亡。結果3箇因素對細胞早期凋亡的影響程度為:超聲功率>微泡/細胞懸液體積比>超聲輻照時間。各箇因素不同水平對細胞早期凋亡的影響程度分彆為:超聲功率:80 mW>60 mW>100 mW,微泡/細胞懸液體積比:20%>30%>10%,超聲輻照時間:60 s>90 s>30 s。最優組閤條件下,實驗組細胞早期凋亡率為10.41%,對照組細胞早期凋亡率為0.94%。透射電鏡下可見實驗組細胞較對照組細胞的體積變小變圓,空泡增多,可見明顯的凋亡小體形成。結論低頻超聲聯閤微泡誘導人雄激素非依賴型前列腺癌DU145細胞早期凋亡的最優組閤條件為:超聲功率80 mW,微泡/細胞懸液體積比20%,超聲輻照時間60 s。在此條件下實驗組早期細胞凋亡率與對照組相比有明顯差異。
목적:채용정교실험설계법,우화저빈(20 kHz)저공솔초성연합미포유도인웅격소비의뢰형전렬선암DU145세포조기조망적조건。방법이초성공솔、미포/세포현액체적비급초성복조시간위정교우화적3개인소,매개인소설정3개수평,분별위초성공솔60、80、100 mW,미포/세포현액체적비10%、20%、30%,초성복조시간30、60、90 s,근거삼인소삼수평설계정교실험표,득도9개실험조,안상응조건채용련속파복조,복조후세포계속배양24 h,채용류식세포술검측세포조기조망。응용정교우화득도적최우조합조건초성복조실험조DU145세포,대조조세포불여초성복조,채용류식세포술、투사전경검측、관찰실험조급대조조세포조기조망。결과3개인소대세포조기조망적영향정도위:초성공솔>미포/세포현액체적비>초성복조시간。각개인소불동수평대세포조기조망적영향정도분별위:초성공솔:80 mW>60 mW>100 mW,미포/세포현액체적비:20%>30%>10%,초성복조시간:60 s>90 s>30 s。최우조합조건하,실험조세포조기조망솔위10.41%,대조조세포조기조망솔위0.94%。투사전경하가견실험조세포교대조조세포적체적변소변원,공포증다,가견명현적조망소체형성。결론저빈초성연합미포유도인웅격소비의뢰형전렬선암DU145세포조기조망적최우조합조건위:초성공솔80 mW,미포/세포현액체적비20%,초성복조시간60 s。재차조건하실험조조기세포조망솔여대조조상비유명현차이。
Objective To optimize the parameters of the low-frequency/low-energy ultrasound combined with micro-bubbles in inducing early apoptosis of DU145 cells (an androgen-independent prostatic cancer cells). Methods In our study, the impact of ultrasonic power, micro-bubbles/cell suspension volume rate and irradiation time were investigated. Three levels of each factor were deifned as ultrasonic power (60, 80, 100 mW), micro-bubbles/cell suspension volume rate (10%, 20%, 30%), irradiation time (30, 60, 90 s). According to the three-factor three-level orthogonal design, nine experiments were carried out. The early apoptosis was detected by lfow cytometry. A new experiment was designed with the optimized parameters. Another group without ultrasound irradiation was designed as the control group. Flow cytometry and transmission electron microscope (TEM) were used to detect the early apoptosis. Results In descending order, the inlfuence of these factors on the cell early apoptosis were:ultrasonic power>micro-bubbles/cell suspension volume rate>irradiation time. Moreover, the inlfuence of each factor level were:80 mW>60 mW>100 mW in ultrasonic power, 20%>30%>10%in micro-bubbles/cell suspension volume rate, 60 s>90 s >30 s in irradiation time. The early apoptosis rate of experiment group was 10.41%, while the control group was 0.94%. TEM showed apoptotic cells in the experiment group. Conclusions The optimized parameter of low-frequency/low-energy ultrasound with micro-bubbles in inducing early apoptosis of DU145 cells are ultrasonic power of 80 mW, micro-bubbles/cell suspension volume rate of 20%, and irradiation time of 60 s. With the optimized parameters, the early apoptosis rate of the experiment group has signiifcant higher than the control group.