白藜芦醇对小鼠前脂肪细胞凋亡及细胞周期的影响  被引量:3

Effect of resveratrol on cell cycle and apoptosis in 3T3-L1 preadipocytes

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作  者:黎文明[1] 张翔[1] 谭炳炎[1] 于志文[1] 郑琳[1] 高渊[1] 杨芳[1] 冯翔[1] 

机构地区:[1]中山大学公共卫生学院,广东广州510080

出  处:《华南预防医学》2013年第5期1-5,共5页South China Journal of Preventive Medicine

基  金:广东省建设中医药强省课题(No.20111157)

摘  要:目的研究白藜芦醇(Res)对小鼠前脂肪细胞凋亡及细胞周期的影响及其机制。方法分别用25、50、75、100μmol/L的Res干预小鼠前脂肪细胞24、48、72h,并设0μmol/LRes为阴性对照组(每组设3个复孔,重复3次)。全自动倒置荧光显微镜观察细胞的形态学变化、细胞增殖.毒性检测试剂盒检测细胞增殖活性、流式细胞仪检测细胞凋亡与细胞周期。结果形态学上.经50μmol/LRes干预48h后的小鼠前脂肪细胞具有典型凋亡形态学改变。细胞增殖-毒性检测发现,0、25、50、75、100μmol/LRes干预24h细胞增殖率分别为100%、(97.00±1.00)%、(91.00±2.65)%、(90.67±2.52)%和(86.00±3.61)%;干预48h细胞增殖率分别是100%、(86.67±2.52)%、(76.00±2.00)%、(34.33±2.08)%和(30.33±2.52)%;干预72h,细胞增殖率分别是100%、(82.00±2.65)%、(65.67±3.06)%、(21.00±3.61)%和(16.33±3.21)%。偏相关分析结果显示细胞增殖率与干预时间、Res浓度均呈负相关关系(r=-0.72、-0.83,均P〈0.01)。0、25、50、75、100μmol/LRes干预24h,G0/G1期的细胞比例分别为(27.23±2.63)%、(39.03±2.74)%、(80.20±5.15)%、(87.97±3.12)%和(90.80±2.08)%;S期的细胞比例分别为(72.43±2.99)%、(63.93±6.90)%、(19.80±5.15)%、(12.20±2.86)%和(9.20±2.08)%,2个细胞周期的50、75、100μmol/LRes干预组与阴性对照组之间的细胞比例差异均有统计学意义(P〈0.05或P〈0.01)。0、25、50、75、100μmol/LRes干预48h,细胞凋亡率分别为(2.90±0.10)%、(5.40±3.81)%、(8.23±4.24)%、(29.77±6.18)%和(27.23±3.17)%;细胞坏死率分别为(7.50±0.87)%、(12.00±4.89)%、(12.27±3.81)%、�Objective To study the effects and mechanism of resveratrol (Res) on apoptosis and cell cycle in 3T3-L1 preadipocytes. Methods 3T3-L1 preadipocytes were treated with different doses of Res treatment (0, 25, 50, 75, and 100μmol/L,0 μmol/L as the negative control)for 24,48 or 72 h. The fluorescence microscope, MTT assay, and flow-cytometry were used for measuring cell morphology, cell proliferation, cell cycle, and apoptosis. Results After treated with 50 μmol/L of Res for 48 h,3T3-L1 preadipocytes exhibited typical apoptosis features when observed under fluorescence microscope. Mrl3' assay showed that,after different doses of Res treatment (0, 25, 50, 75, and 100 μmol/L) for 24 h,cell prolif- eration rate was 100%, (97.00 ± 1.00)%, (91.00 ± 2. 65)%, (90.67 ± 2. 52)%, and (86. 00 ± 3.61 )%, respectively; after the similar Res treatment for 48 h, cell proliferation rate was 100%, (86. 67 ± 2. 52) % , ( 76. 00 ± 2. 00) % , ( 34. 33 ± 2.08 ) %, and ( 30. 33 ± 2. 52 ) % , respectively ; also, after the similar Res treatment for 72 h, cell proliferation rate was 100%, (82.00 ± 2.65)%, (65.67 ± 3.06) % , (21.00 ± 3.61 ) % , and ( 16. 33 ± 3.21 ) % , respectively. Partial correlation analysis showed a negative correlation between cell proliferation rate and intervention time, concentration of Res (r= -0.72,-0.83, all P 〈 0.01 ). After different doses of Res treatment (0, 25, 50, 75, and 100 μmol/L) for 24 h,the portion of cells in GO/G1 phase was (27.23 ±2. 63)% , (39.03 ±2. 74)% , (80. 20 ±5.15)% , (87.97 ±3.12)% , (90. 80 ±2.08)% ,respectively;as the same,the portion of cells ins phase was (72.43 ±2.99)%, (63.93 ±6.90)%, (19.80 ±5.15)%, (12.20 ±2.86)%, (9. 20 ±2.08 ) % ,respectively. From the results of the cell cycle examination, the portion of cells in G0/G1 phase decreased (P 〈 0.05 or P 〈 0. 01 ) and increased evidently in S phase (P 〈 0.05 or P 〈 0. 01 ) in a dos

关 键 词:白藜芦醇 脂肪细胞 细胞周期 细胞凋亡 

分 类 号:R589.2[医药卫生—内分泌]

 

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