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纸质出版日期:2016
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杨联河, 赵雪艳, 郭彬, 等. 启膈散与顺铂对食管癌细胞EC9706低氧下生长抑制及其miR-21,PDCD4和PTEN表达的影响[J]. 中国实验方剂学杂志, 2016,22(15):134-138.
YANG Lian-he, ZHAO Xue-yan, GUO Bin, et al. Inhibitive Effect of Qige San and Cisplatin on Growth of Esophageal Carcinoma Cells EC9706 and Its miR-21, PDCD4 and PTEN Expressions Under Hypoxia[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(15): 134-138.
杨联河, 赵雪艳, 郭彬, 等. 启膈散与顺铂对食管癌细胞EC9706低氧下生长抑制及其miR-21,PDCD4和PTEN表达的影响[J]. 中国实验方剂学杂志, 2016,22(15):134-138. DOI: 10.13422/j.cnki.syfjx.2016150134.
YANG Lian-he, ZHAO Xue-yan, GUO Bin, et al. Inhibitive Effect of Qige San and Cisplatin on Growth of Esophageal Carcinoma Cells EC9706 and Its miR-21, PDCD4 and PTEN Expressions Under Hypoxia[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(15): 134-138. DOI: 10.13422/j.cnki.syfjx.2016150134.
目的: 观察低氧下启膈散和顺铂抑制食管癌细胞增殖的协同效应,从miR-21及其靶基因角度探讨其机制。 方法: 制备含药血清,噻唑蓝(MTT)比色法检测启膈散和顺铂单用或联合应用对食管癌细胞EC9706增殖的影响,实时荧光定量PCR(Real-time PCR)检测启膈散和顺铂单用或两者联合应用对食管癌细胞miR-21,程序死亡蛋白4(PDCD4),磷酸酶和张力蛋白类似物(PTEN)mRNA表达的影响,免疫印迹法(Western blot)检测PDCD4,PTEN蛋白表达。 结果: 启膈散在浓度为8%,10%与1 mg·L-1顺铂合用具有协同作用,其两药相互作用系数(CDI)分别为0.90,0.94。顺铂高浓度组,联合高、低浓度组miRNA-21表达量明显低于空白组(P<0.05);联合高、低浓度组miRNA-21表达量显著低于同浓度顺铂组(P<0.01),且联合高浓度组低于联合低浓度组(P<0.05)。顺铂高浓度、启膈散组PDCD4 mRNA表达量明显低于空白组(P<0.05),而联合高、低浓度组PDCD4,PTEN mRNA表达量明显高于空白组(P<0.05);联合高、低浓度组PDCD4,PTEN mRNA明显高于同浓度顺铂组(P<0.01),且联合高浓度组PTEN mRNA表达高于联合低浓度组(P<0.01)。与空白组比较,联合高、低浓度组PTEN蛋白表达明显升高(P<0.05),且联合高、低浓度组PTEN蛋白显著高于同浓度顺铂组(P<0.01);顺铂高、低浓度组,联合高、低浓度组PDCD4明显高于空白组(P<0.05),联合高浓度组明显高于同浓度顺铂组和联合低浓度组(P<0.05,P<0.01)。 结论: 启膈散含药血清和顺铂在抑制食管癌细胞EC9706增殖方面具有协同作用,其机制可能与通过抑制miR-21表达从而升高PDCD4和PTEN基因表达相关。
Objective: To investigate the synergistic effect of Qige San and cisplatin in inhibiting proliferation of esophageal carcinoma cells in hypoxia
in order to explore the mechanism from the perspective of miR-21 and its target genes. Method: Drug-containing serum was prepared. The single or combined effects of Qige San and cisplatin on cells activation were tested by 3-(4
5-dimethyl-2-thiazolyl)-2
5-diphenyl-2-H-tetrazolium bromid (MTT) assays. Apoptosis and cell cycle arrest induced by Qige San and cisplatin were detected by flow cytometry. MiR-21
programmed cell death 4 (PDCD4)
phosphatase and tensin homolog (PTEN) mRNA expressions were detected by Real-time PCR
while PDCD4 and PTEN protein expression were detected by Western blot. Result: Qige San in concentrations of 8%and 10%combined with 1 mg·L-1 cisplatin has a synergistic effect in inhibiting proliferation of esophageal carcinoma cells
with the coefficients of drug in interaction (CDI) of 0.90
0.94
respectively. The expressions of miRNA-21 in cisplatin high concentration group
and combination high and low concentration group were significantly lower than that in the control group(P<0.05). The expression of miRNA-21 in combination high and low concentration group was significantly lower than that of cisplatin groups with the same concentration (P<0.01)
and the low concentration group (P<0.05). The expression of PDCD4 mRNA was significantly lower in the cisplatin high concentration group and the Qige San group than in control group (P<0.05)
whereas the expression of PTEN and PDCD4 mRNA in combination high and low concentration group was significantly higher than that in control group (P<0.05)
and PDCD4
PTEN mRNA expressions in combination high and low concentration group was significantly higher than that of cisplatin groups with the same concentration (P<0.01)
and PTEN mRNA in high concentration combination group was higher than that in lower concentration combination group (P<0.01). Compared with the control group
the expression of PTEN protein was significantly higher in combination high and low concentration group(P<0.05)
and that in combination high and low concentration group was significantly higher than that in the same concentration of cisplatin group (P<0.01). PDCD4 was significantly higher in cisplatin high and low concentration group and combination high and low concentration group that in control group (P<0.05)
and combination high concentration group was significantly higher than that in cisplatin group and combination low concentration group (P<0.05
P<0.01). Conclusion: Qige San and cisplatin have a synergistic effect in inhibiting proliferation of esophageal carcinoma cell line EC9706
and the mechanism may be related to increase the expression of PDCD4 and PTEN by inhibiting miRNA-21 expression.
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