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1.贵州省天然药物资源高效利用工程中心,贵阳 550025;
2.贵州医科大学 天然药物资源优效利用重点实验室,贵阳 550025
潘迪,硕士,讲师,从事民族药药理学研究,E-mail:pandipharm@gmc.edu.cn
沈祥春,博士生导师,教授,从事民族药药理学研究,E-mail:shenxiangchun@126.com
纸质出版日期:2019-12-20,
网络出版日期:2019-06-24,
收稿日期:2019-01-27,
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潘迪, 张雯, 张荣, 等. 氧化苦参碱抑制胰岛素诱导人结肠癌HT-29细胞的增殖及迁移作用[J]. 中国实验方剂学杂志, 2019,25(24):36-42.
Di PAN, Wen ZHANG, Rong ZHANG, et al. Effect of Oxymatrine in Inhibiting Proliferation and Migration of HT-29 Cells Induced by Insulin[J]. Chinese Journal of Experimental Traditional Medical Formulae, 2019,25(24):36-42.
潘迪, 张雯, 张荣, 等. 氧化苦参碱抑制胰岛素诱导人结肠癌HT-29细胞的增殖及迁移作用[J]. 中国实验方剂学杂志, 2019,25(24):36-42. DOI: 10.13422/j.cnki.syfjx.20192022.
Di PAN, Wen ZHANG, Rong ZHANG, et al. Effect of Oxymatrine in Inhibiting Proliferation and Migration of HT-29 Cells Induced by Insulin[J]. Chinese Journal of Experimental Traditional Medical Formulae, 2019,25(24):36-42. DOI: 10.13422/j.cnki.syfjx.20192022.
目的:
2
利用胰岛素培养人结肠癌细胞HT-29,体外模拟糖尿病患者体循环中高胰岛素环境,研究氧化苦参碱(OMT)对胰岛素诱导的人结肠癌HT-29细胞增殖和迁移的影响。
方法:
2
采用噻唑蓝(MTT)比色法和平板克隆实验检测OMT(2
4
8 mmol·L
-1
)对胰岛素诱导HT-29的增殖作用,倒置显微镜观察该模型下细胞形态的变化;通过划痕修复实验评价OMT对胰岛素诱导的HT-29迁移能力,流式细胞术Annexin V/碘化丙啶(PI)双染实验检测该模型中HT-29细胞周期与凋亡的变化;蛋白免疫印迹法(Western blot)检测细胞周期相关蛋白的表达以及细胞迁移相关蛋白的表达。
结果:
2
MTT比色法、平板克隆及划痕修复实验均显示,与空白组比较,胰岛素能促进人结肠癌HT-29细胞的增殖和迁移(
P
<
0.05);选择2
4
8 mmol·L
-1
OMT处理细胞24 h,与胰岛素组比较,OMT 4
8 mmol·L
-1
明显抑制其增殖作用(
P
<
0.05),可诱导HT-29细胞发生G
0
/G
1
期阻滞(
P
<
0.05),8 mmol·L
-1
OMT下调细胞周期蛋白D
1
(CyclinD
1
)和周期蛋白依赖性激酶4(CDK4)表达(
P
<
0.05),上调周期负调节蛋白p27水平(
P
<
0.05);此外,划痕修复实验结果显示,与胰岛素组比较,OMT各浓度组均能抑制胰岛素诱导的细胞迁移作用(
P
<
0.05),其机制可能与增加黏附蛋白(E-cadherin)(
P
<
0.05)和降低波形蛋白(Vimentin)(
P
<
0.05)相关。
结论:
2
OMT能抑制胰岛素诱导的人结肠癌HT-29细胞增殖及迁移作用,其作用机制可能与调控细胞周期及迁移相关蛋白有关。
Objective:
2
To investigate the effect of oxymatrine (OMT) on the proliferation and migration of human colon cancer cell line HT-29 under Type Ⅱ diabetes environment by co-culturing HT-29 with insulin to simulate hyperinsulinemia.
Method:
2
The effect of OMT (2
4
8 mmol·L
-1
) on insulin-induced proliferation of HT-29 was detected by methyl thiazolyl tetrazolium (MTT) assay and cloning assay. The morphology change and cell migration were evaluated under microscope and by wound healing assay. The Annexin V/propidium iodide(PI) assay was used to detect the change of insulin-induced HT-29 cell cycle and apoptosis. Western blot was performed to validate the expression of cell cycle-related protein and cell migration protein.
Result:
2
Insulin significantly increased growth of HT-29 (
P
<
0.05). Compared with insulin group
OMT with 2
4
8 mmol·L
-1
showed a significant inhibitory effect in this model (
P
<
0.05). In addition
OMT blocked HT-29 cell cycle in G
0
/G
1
phase (
P
<
0.05)
and showed a slight apoptotic effect. Western blot showed that the down-regulation of Cyclin D
1
CDK4 and the up-regulation of p27 by OMT might involve the growth inhibition mechanism. Furthermore
OMT reduced the migration of insulin-induced HT-29 according to wound healing assay(
P
<
0.05). Decreased Vimentin (
P
<
0.05)and increased E-cadherin(
P
<
0.05)might be correlated with the migration restrain.
Conclusion:
2
OMT can inhibit the proliferation and migration of insulin-induced HT-29 cells. The changes of cell cycle and migration related proteins may be correlated with the mechanism.
HT-29细胞氧化苦参碱胰岛素细胞增殖细胞迁移
HT-29 celloxymatrineinsulincell proliferationcell migration
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