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·药学研究·

        大黄素-8-O-β-D-葡萄糖苷的体内外遗传毒性评价                                                  Δ


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        文海若 ,颜玉静 ,宋 捷 ,鄂 蕊 ,马双成 ,汪 祺 (1.中国食品药品检定研究院国家药物安全评价监测中
                                1
        心/药物非临床安全评价研究北京市重点实验室,北京 100176;2.中国食品药品检定研究院中药民族药检定
        所,北京 100050)
        中图分类号 R994          文献标志码 A           文章编号 1001-0408(2020)01-0018-06
        DOI   10.6039/j.issn.1001-0408.2020.01.04

        摘   要   目的:评价大黄素-8-O-β-D-葡萄糖苷(EG)的体内外遗传毒性,并比较体外细胞试验及大鼠体内实验评价结果的差异。
        方法:采用体外二维(2D)、三维(3D)细胞培养法分别构建2D、3D HepaRG细胞模型,造模成功后,分别将2D、3D HepaRG细胞分
        为空白对照组[0.5%二甲基亚砜(DMSO)]、丝裂霉素C组(阳性对照,0.1 µg/mL)和EG低、中、高剂量组(10、50、200 µg/mL),然后
        检测各组HepaRG细胞的微核形成率和尾DNA百分含量。将SD大鼠分为空白对照组(0.5%羧甲基纤维素钠)、甲磺酸乙酯组(阳
        性对照,200 mg/kg)和EG低、中、高剂量组(100、300、1 000 mg/kg),每组6只,连续灌胃给药15 d,每天1次;15 d后检测各组大鼠
        骨髓嗜多染红细胞、肝细胞的微核形成率及外周血淋巴细胞、肝细胞的尾DNA百分含量、尾距。结果:在体外2D HepaRG细胞模
        型中,与空白对照组比较,丝裂霉素 C 组 HepaRG 细胞的微核形成率和尾 DNA 百分含量均显著升高(P<0.01),EG 各剂量组
        HepaRG细胞的微核形成率和尾DNA百分含量差异无统计学意义(P>0.05);在3D HepaRG细胞模型中,与空白对照组比较,丝
        裂霉素 C 组 HepaRG 细胞的微核形成率和尾 DNA 百分含量均显著升高(P<0.01 或 P<0.001),EG 高剂量组 HepaRG 细胞的尾
        DNA百分含量显著升高(P<0.01)。在大鼠体内实验中,与空白对照组比较,甲磺酸乙酯组大鼠骨髓嗜多染红细胞、肝细胞的微
        核形成率和外周血淋巴细胞、肝细胞的尾DNA百分含量、尾距均显著升高(P<0.01),EG高剂量组大鼠外周血淋巴细胞尾DNA
        百分含量显著升高(P<0.01),EG各剂量组大鼠骨髓嗜多染红细胞、肝细胞的微核形成率和肝细胞尾DNA百分含量、尾距差异无
        统计学意义(P>0.05),但随剂量增加有升高趋势。结论:本研究结果提示在2D细胞模型中,EG未导致染色体断裂及DNA损伤,
        但3D细胞模型长期给药和体内重复给药结果均显示EG存在一定DNA损伤风险,故3D HepaRG细胞模型的评价结果更接近大
        鼠体内实验结果。
        关键词 大黄素-8-O-β-D-葡萄糖苷;遗传毒性;HepaRG细胞;二维培养;三维培养;大鼠;微核试验
        Study on in vitro and in vivo Genotoxicity of Emodin-8-O-β-D-glucoside
        WEN Hairuo ,YAN Yujing ,SONG Jie ,AO Rui ,MA Shuangcheng ,WANG Qi(1.National Center for Safety
                    1
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                                                    1
        Evaluation and Monitoring of Drugs,National Institutes for Food and Drug Control/Key Laboratory of Beijing
        for Nonclinical Safety Evaluation Research of Drugs,Beijing 100176,China;2.Institute for TCM and Ethnic
        Medicine Control,National Institutes for Food and Drug Control,Beijing 100050,China)
        ABSTRACT    OBJECTIVE:To evaluate the in vitro and in vivo genotoxicity of emodin-8-O-β-D-glucoside(EG),and to compare
        the difference of in vitro cell test and in vivo test of rats. METHODS:2D and 3D hepatocyte models were established by in vitro
        two-dimensional(2D)and three-dimensional(3D)cell culture. After modeling,2D and 3D hepatocyte were divided into blank
        control group(0.5% DMSO),mitomycin C group(positive control,0.1 µg/mL),EG low-dose,medium-dose and high-dose
        groups(10,50,200 µg/mL),respectively. The micronucleus ratio and tail DNA% of HepaRG cells were detected. SD rats were
        divided into blank control group(0.5% sodium carboxymethyl cellulose),ethyl methanesulfonate group(positive control,200
        mg/kg),EG low-dose,medium-dose and high-dose groups(100,300,1 000 mg/kg),with 6 rats in each group. They were given
        medicine intragastrically for consecutive 15 d,once a day. 15 days later,the micronucleus formation rate of bone marrow
        polychromatic erythrocytes and hepatocytes,the tail DNA% and tail distance of peripheral blood lymphocytes and hepatocytes were
        measured. RESULTS:In the in vitro 2D HepaRG hepatocyte model,compared with blank control group,the micronucleus
        formation rate and tail DNA% of HepaRG cell were increased significantly in mitomycin C group (P<0.01). There was no
                                                            statistical significance in micronucleus formation rate and tail
            Δ 基 金 项 目 :国 家 自 然 科 学 基 金 资 助 项 目(No.81503347,
                                                            DNA% of HepaRG cell among EG groups(P>0.05). In 3D
        81503068);国家重大新药创制专项(No.2018ZX09201-017)
                                                            HepaRG cell model, compared with blank control group,
            * 副 研 究 员 。 研 究 方 向 :遗 传 毒 理 。 电 话 :010-67876252。
        E-mail:wenhairuo@nifdc.org.cn                       micronucleus formation rate and tail DNA% of HepaRG cell
            # 通信作者:副研究员。研究方向:中药毒理。电话:010-                   were increased significantly in mitomycin C group (P<0.01
        67395282。E-mail:sansan8251@sina.com                 or P<0.001), while tail DNA% of HepaRG cell was


        ·18  ·  China Pharmacy 2020 Vol. 31 No. 1                                    中国药房    2020年第31卷第1期
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