咪达唑仑调节cAMP/PKA/CREB通路对乳腺癌细胞的影响  

Effects of midazolam modulating cAMP/PKA/CREB pathway on breast cancer cells

作　　者：蒋琦雯 徐杨[2] 姚军[2] 叶棋 任帅帅 JIANG Qiwen;XU Yang;YAO Jun;YE Qi;REN Shuaishuai(Department of Anesthesia,Jinhua Wenrong Hospital,Jinhua 321001,Zhejiang,China;Department of Anesthesia,Shanghai Sixth People’s Hospital,Shanghai 200233,China;Department of Anesthesia,Jinhua People’s Hospital,Jinhua 321302,Zhejiang,China)

机构地区：[1]金华文荣医院麻醉科,浙江金华321001 [2]上海市第六人民医院麻醉科,上海200233 [3]金华市人民医院麻醉科,浙江金华3213021

出　　处：《中国现代医生》2023年第36期101-105,128,共6页China Modern Doctor

摘　　要：目的 探讨咪达唑仑对乳腺癌MDA-MD-231细胞增殖、迁移和侵袭的影响及其对环磷酸腺苷(cyclicadenosine monophosphate,c AMP)/蛋白激酶A(protein kinase A,PKA)/cAMP反应元件结合蛋白(cAMP response element binding protein,CREB)信号通路的调节作用。方法 体外培养MDA-MD-231细胞并分为对照组、咪达唑仑L组、咪达唑仑M组、咪达唑仑H组和咪达唑仑H+Sp-cAMPS组,咪达唑仑L组、咪达唑仑M组、咪达唑仑H组分别用5μmol/L、10μmol/L、20μmol/L咪达唑仑处理细胞,咪达唑仑H+Sp-cAMPS组加入20μmol/L咪达唑仑+10μmol/L Sp-cAMPS处理细胞。3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐[3-(4,5)-dimethylthiahiazo(-z-y1)-3,5-di-phenytetrazoliumromide,MTT]法检测细胞的增殖能力;细胞划痕试验检测迁移能力;Transwell试验测定细胞的侵袭能力;流式细胞术检测细胞凋亡;酶联免疫吸附测定(enzyme-linked immunosorbent assay,ELISA)检测c AMP的表达水平;蛋白免疫印迹(Western blot)技术验证磷酸化(p-)PKA/PKA、p-CREB/CREB蛋白表达。结果 与对照组比较,咪达唑仑L组、咪达唑仑M组、咪达唑仑H组细胞呈现凋亡现象,凋亡率显著提高,细胞的增殖、迁移和侵袭能力及c AMP、p-PKA/PKA、p-CREB/CREB蛋白表达水平显著下降(P<0.05);与咪达唑仑H组比较,咪达唑仑H+Sp-cAMPS组细胞生长状态良好,凋亡率显著降低,细胞的增殖、迁移和侵袭能力及cAMP、p-PKA/PKA、p-CREB/CREB蛋白表达水平显著提高(P<0.05)。结论 咪达唑仑可通过抑制cAMP/PKA/CREB信号通路的激活抑制乳腺癌细胞的增殖、迁移和侵袭。Objective To investigate the impacts of midazolam on the proliferation,migration and invasion of breast cancer MDA-MD-231 cells and its regulation on cyclic adenosine monophosphate(cAMP)/protein kinase A(PKA)/cAMP response element binding protein(CREB)signaling pathway.Methods MDA-MD-231 cells were cultured in vitro and grouped into control group,midazolam L group,midazolam M group,midazolam H group,and midazolam H+Sp-cAMPS group.Midazolam L group,midazolam M group,midazolam H group were treated with 5μmol/L,10μmol/L,and 20μmol/L of midazolam,respectively,midazolam H+Sp-cAMPS group was added with 20μmol/L of midazolam+10μmol/L of Sp-cAMPS 3-(4,5)-dimethylthiahiazo(-z-y1)-3,5-di-phenytetrazoliumromide(MTT)assay was applied to detect cell proliferation;The migration ability was detected by cell scratch test;Transwell test was applied to determine the invasion ability of cells;Cell apoptosis was detected by flow cytometry;The expression level of cAMP was detected by enzyme-linked immunosorbent assay(ELISA);Western blot was applied to verify the expression of phosphorylated(p-)PKA/PKA,p-CREB/CREB protein.Results Compared with control group,the cells in midazolam L group,midazolam M group,midazolam H group showed apoptosis,the apoptosis rate was obviously increased,the cell proliferation,migration and invasion abilities and the expression levels of cAMP,p-PKA/PKA,p-CREB/CREB proteins were obviously decreased(P<0.05);Compared with midazolam H group,midazolam H+Sp-cAMPS group had good cell growth,obviously reduced apoptosis rate,and obviously increased cell proliferation,migration and invasion abilities,and the expression levels of cAMP,p-PKA/PKA,p-CREB/CREB proteins(P<0.05).Conclusion Midazolam may inhibit the proliferation,migration and invasion of breast cancer cells by inhibiting the activation of cAMP/PKA/CREB signaling pathway.

关 键 词：咪达唑仑 乳腺癌细胞 cAMP/PKA/CREB通路 增殖 迁移 

分 类 号：R737.9[医药卫生—肿瘤]