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没食子乙醇提取物对结肠癌细胞 JAK2/STAT3 信号通路的调控

        作用研究           Δ


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        阿丽亚·依拉木 ,阿布都艾则孜·艾尔肯 ,闫 波 ,艾尔菲丁·阿尼娃尔 ,木巴拉克·伊明江 (1.新疆医科大学
                      1*
                                                     2
                                             1
                                                                                           1 #
        药学院,乌鲁木齐 830011;2.新疆医科大学第一附属医院药学部,乌鲁木齐 830011)
        中图分类号 R285.5          文献标志码 A          文章编号 1001-0408(2022)03-0326-06
        DOI   10.6039/j.issn.1001-0408.2022.03.12

        摘   要   目的 基于蛋白酪氨酸激酶2(JAK2)/信号传导及转录活化因子3(STAT3)信号通路研究没食子乙醇提取物对结肠癌细胞
        HCT-116、Caco-2 增殖、迁移的调控机制。方法 采用 CCK-8 法检测 0.05、0.1、0.2、0.3、0.4、0.5 mg/mL 没食子乙醇提取物作用 12、
        24、48、72 h 后对 HCT-116、Caco-2 细胞增殖的影响。以 0.1、0.3、0.5 mg/mL 没食子乙醇提取物作用于 HCT-116、Caco-2 细胞 24 h
        后,采用划痕实验测定细胞的迁移情况,采用荧光探针法检测细胞内活性氧(ROS)水平,采用酶联免疫吸附法检测细胞上清液中
        白细胞介素 6(IL-6)、肿瘤坏死因子α(TNF-α)水平,采用 Western blot 法检测细胞中 JAK2、STAT3 磷酸化水平和 B 细胞淋巴瘤 2
        (Bcl-2)、Bcl-2相关X蛋白(Bax)的表达水平。结果 与空白对照比较,0.05、0.1、0.2、0.3、0.4、0.5 mg/mL 没食子乙醇提取物作用12、
        24、48、72 h后均可显著抑制细胞增殖(P<0.05)。0.1、0.3、0.5 mg/mL 没食子乙醇提物作用24 h后,2种细胞的划痕愈合率和细胞
        上清液中IL-6、TNF-α水平,以及细胞中JAK2、STAT3磷酸化水平和Bcl-2蛋白表达水平均显著降低(P<0.05);细胞内ROS水平、
        Bax蛋白表达水平均显著升高(P<0.05)。结论 没食子乙醇提取物可抑制结肠癌细胞HCT-116、Caco-2的增殖和迁移,其机制可
        能与增加细胞内ROS的积累,下调肿瘤微环境中炎症因子IL-6、TNF-α的表达和JAK2/STAT3信号通路中JAK2、STAT3的磷酸化
        水平,进而下调Bcl-2蛋白表达、上调Bax蛋白表达有关。
        关键词 没食子乙醇提取物;结肠癌细胞;炎症因子;活性氧;蛋白酪氨酸激酶2/信号传导及转录活化因子3信号通路
        Study on regulation of ethanol extract of Turkish Galls on JAK2/STAT3 signaling pathway in colorectal
        cancer cells
                                      1
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                                                                                   1
        Aliya·Elham ,Abdulaziz·Arken ,YAN Bo ,Arfidin·Anwar ,Mubarak·Iminjan(1. College of Pharmacy,
                                                 2
                     1
        Xinjiang Medical University,Urumqi 830011,China;2. Dept. of Pharmacy,the First Affiliated Hospital of
        Xinjiang Medical University,Urumqi 830011,China)
        ABSTRACT    OBJECTIVE To study the regulatory mechanism of ethanol extract of Turkish Galls on proliferation and migration
        of colorectal cancer cells HCT-116 and Caco-2 based on janus kinase 2(JAK2)/signal transducer and activator of transcription 3
        (STAT3)signaling pathway. METHODS CCK-8 method was used to detect the effects of 0.05,0.1,0.2,0.3,0.4 and 0.5 mg/mL
        ethanol extract of Turkish Galls on the proliferation of HCT-116 and Caco-2 cells after treated for 12,24,48 and 72 h. After
        treated with 0.1,0.3,0.5 mg/mL ethanol extract of Turkish Galls for 24 h,the migrations of HCT-116 and Caco-2 cells were
        detected by scratch test;the level of reactive oxygen species (ROS) was detected by fluorescent probe method. The levels of
        interleukin-6(IL-6)and tumor necrosis factor-α(TNF-α)in cell supernatant were detected by ELISA. The phosphorylations of
        JAK2 and STAT3 as well as the expressions of B-cell lymphoma-2(Bcl-2)and Bcl-2 associated protein X(Bax)were detected by
        Western blot assay. RESULTS Compared with blank control,0.05,0.1,0.2,0.3,0.4 and 0.5 mg/mL ethanol extract of Turkish
        Galls could significantly inhibit cell proliferation after treated for 12,24,48,72 h(P<0.05). After treated with 0.1,0.3 and 0.5
        mg/mL ethanol extract of Turkish Galls for 24 h,the scratch healing rate of 2 kinds of cells,the levels of IL-6 and TNF-α in the
        cell supernatant,the phosphorylation of JAK2 and STAT3 as well as the expression of Bcl-2 protein were all significantly decreased
        (P<0.05);the level of ROS and protein expression of Bax were increased significantly(P<0.05). CONCLUSIONS The ethanol
        extract of Turkish Galls can inhibit the proliferation and migration of HCT-116 and Caco-2 cells. The mechanism may be related
        with down-regulation of protein expression of Bcl-2 and up-regulation of protein expression of Bax by increasing the accumulation
        of intracellular ROS,down-regulating the expressions of inflammatory factors IL-6 and TNF-α and the phosphorylation of JAK2
                                                            and STAT3 in JAK2/STAT3 signaling pathway.
            Δ 基 金 项 目 :新 疆 维 吾 尔 自 治 区 自 然 科 学 基 金 面 上 项 目
                                                            KEYWORDS     ethanol extract of Turkish Galls;colorectal
        (No.2021D01C259)
                                                            cancer cell; inflammatory factor; reactive oxygen species;
            *硕士研究生。研究方向:天然药物抗肿瘤作用机制。电话:
                                                            janus kinase 2/signal transducer and activator of transcription 3
        0991-2110360。E-mail:965175578@qq.com
                                                            signaling pathway
            # 通信作者:副教授,硕士生导师,博士。研究方向:天然药物抗
        肿瘤作用机制。电话:0991-2110360。E-mail:896612093@qq.com

        ·326 ·  China Pharmacy 2022 Vol. 33 No. 3                                    中国药房    2022年第33卷第3期
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