Page 57 - 2019年11月第30卷第21期
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Effects of Bezafibrate and Fenofibrate on the Proliferation of Lung Adenocarcinoma PC-9 Cells and the
        Expression of c-myc
        WANG Guiping ,LIANG Jiecong ,LI Zhibin ,ZHANG Yantao (1.Dept. of Pharmacy,Guangzhou Health
                                       2
                                                                   1
                                                   1
                       1
        Science College,Guangzhou 510180,China;2.Dept. of Surgery,Guangzhou Women and Children’s Medical
        Center,Guangzhou 510623,China)
        ABSTRACT    OBJECTIVE:To study the effects of bezafibrate (BEZ) and fenofibrate (FEN) on the proliferation of lung
        adenocarcinoma PC-9 cells and the expression of c-myc. METHODS:The effects of BEZ and FEN(12.5,25,50,100,200
        µmol/L)on the survival rate of PC-9 cells were detected by CCK8 method. PC-9 cells were divided into administration group and
        control group. Administration group was given low,medium and high concentration(25,50,100 µmol/L)of BEZ and FEN;
        control group was treated with dimethyl sulfoxide for 48 h. Cell cycle distribution and apoptosis were detected by flow cytometry.
        qRT-PCR was used to detect mRNA relative expression of c-myc in cells. The protein relative expression of c-myc in cells were
        detected by Western blot assay. RESULTS:The survival rates of PC-9 cells were(80.76±3.2)%,(74.35±5.06)%,(62.8±
        1.23)%,(59.03±1.55)%,(39.8±1.01)% under the action of above concentration of BEZ;and the survival rates of PC-9 cells
        were (74.46 ± 1.30)% ,(61.91 ± 4.77)% ,(48.95 ± 2.8)% ,(37.05 ± 1.55)% ,(32.49 ± 1.36)% under the action of FEN.
        Compared with control group,G1 phase cell ratio increased significantly in medium and high concentration groups of BEZ and
        FEN;the apoptotic rate of PC-9 cells was increased significantly in low,medium and high concentration groups of BEZ and FEN;
        mRNA and protein relative expression of c-myc were decreased significantly, with statistical significance (P<0.05).
        CONCLUSIONS:BEZ and FEN can inhibit the proliferation of PC-9 cells,and down-regulate c-myc expression.
        KEYWORDS     Bezafibrate;Fenofibrate;Lung adenocarcinoma PC-9 cell;Half inhibitory concentration;c-myc;Inhibitory effect


            肺腺癌(Lung adenocarcinoma)属于非小细胞肺癌               (德国Eppendorf公司)。
        (NSCLC),占所有肺癌的30%~40%,由于70%~80%                     1.2  药品与试剂
        的肺癌发现时已进展为晚期,故化疗仍是绝大多数肺癌                                苯扎贝特对照品和非诺贝特对照品(美国 Sigma 公
                           [1]
        患者主要的治疗手段 。但目前绝大多数肺癌患者化疗                            司,批号:B7273、F6020,纯度:>98%、>99%);Cell
        预后并不理想,总体 5 年生存率仅为 10%~15%,肺癌                       Counting Kit8(CCK8)试剂盒(上海碧云天生物技术有限
        的治疗药物主要包括铂类药物、第三代细胞毒药物(吉                            公司,批号:C0038);兔抗人 c-myc 单克隆抗体(英国
        西他滨、紫杉醇、培美曲塞等)、表皮生长因子受体(EG-                         Abcam公司,批号:32072);辣根过氧化物(HRP)标记的
        FR)酪氨酸激酶抑制剂及 EGFR 单抗等             [2-3] 。因此,发现      鼠抗甘油醛-3-磷酸脱氢酶(GAPDH)抗体(上海康成生
        新的、更有效的、更安全的化疗药物,对延长肺癌患者的                           物工程有限公司,批号:KC-5G5);HRP标记山羊抗兔免
        生存时间及降低死亡率有着迫切的临床需要。                                疫球蛋白G(IgG)二抗(经小鼠、人免疫球蛋白吸附)(美
            贝特类药物如苯扎贝特(Bezafibrate)、非诺贝特                    国Southern Biotech公司,批号:4050-05);96孔聚苯乙烯
        (Fenofibrate)等具有降低三酰甘油、防止血液凝固、促进                    酶标板(美国 Corning 公司);胎牛血清、RPMI1640 培养
        血栓溶解、减少动脉粥样硬化性炎症等作用,常用于动                            基及青链霉素(美国 Hyclone 公司,批号:SH30087.01、
        脉粥样硬化的预防和治疗 。近年来研究发现,贝特类                            SH30809.01B、SH30010);聚偏二氟乙烯(PVDF)膜(美
                               [4]
        药物也具有良好的抗肿瘤作用,如非诺贝特被报道对乳                            国Millipore公司);其余试剂均为分析纯。
        腺癌、肝癌、神经胶质瘤、前列腺癌等多种人类肿瘤具有                           1.3 细胞
        良好的抗肿瘤作用         [4-7] ;苯扎贝特被报道对白血病等肿瘤                  人肺腺癌细胞株PC-9购自中山大学细胞库,培养于
        具有良好的抗肿瘤作用           [8-9] 。然而,目前有关苯扎贝特和            含有 10%胎牛血清的 RPMI1640 培养基中,并在 37 ℃、
        非诺贝特抗肺癌的研究很少,本文主要研究苯扎贝特和                            5% CO2培养箱中培养,0.25%胰蛋白酶消化,传代备用。
        非诺贝特对肺腺癌细胞PC-9增殖和c-myc表达的影响,                        2 方法
        为贝特类药物在肿瘤治疗中的应用提供依据。                                2.1 细胞增殖的检测
        1 材料                                                    参考文献[10]方法,采用CCK8法检测细胞存活率,
        1.1 仪器                                              具体操作按说明书进行。取对数生长期PC-9细胞,以含
            HERACELL150i 型 CO2 培养箱、MK3 型酶标仪和                10%胎牛血清的 RPMI1640 培养基制备单细胞悬液,接
        7500 型荧光定量聚合酶链式反应(qRT-PCR)仪(赛默飞                     种于 96 孔培养板,细胞密度为 5×10 L ,每孔 200 µL,
                                                                                              -1
                                                                                           5
        世尔仪器有限公司);Tanon-1600型凝胶成像系统(上海                      试验设对照组、苯扎贝特组和非诺贝特组。将苯扎贝特
        天能科技有限公司);22331 Hamburg型核酸蛋白测定仪                     和非诺贝特溶解于二甲基亚砜(DMSO)溶液(体积比为


        ·2932  ·  China Pharmacy 2019 Vol. 30 No. 21                                中国药房    2019年第30卷第21期
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