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首页> 外文期刊>Biochemical Pharmacology >Lanatoside C inhibits cell proliferation and induces apoptosis through attenuating Wnt/beta-catenin/c-Myc signaling pathway in human gastric cancer cell
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Lanatoside C inhibits cell proliferation and induces apoptosis through attenuating Wnt/beta-catenin/c-Myc signaling pathway in human gastric cancer cell

机译:LanaToside C通过在人胃癌细胞中衰减Wnt /β-catenin / c-myc信号通路来抑制细胞增殖并诱导细胞凋亡

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摘要

Gastric cancer is the third common cause of cancer mortality in the world with poor prognosis and high recurrence due to lack of effective medicines. Our studies revealed that lanatoside C, a FDA-approved cardiac glycoside, had an anti-proliferation effect on different human cancer cell lines (MKN-45; SGC-7901; HN4; MCF-7; HepG2) and gastric cell lines MKN-45 and SGC-7901 were the most sensitive cell lines to lanatoside C. MKN-45 cells treated with lanatoside C showed cell cycle arrest at G2/M phase and inhibition of cell migration. Meanwhile, upregulation of cleaved caspase-9 and cleaved PARP and downregulation of Bcl-xl were accompanied with the loss of mitochondria' membrane potential (MMP) and induction of intracellular reactive oxygen species (ROS). Lanatoside C inhibited Wnt/beta-catenin signaling with downregulation of c-Myc, while over expression of c-Myc reversed the anti-tumor effect of lanatoside C, confirming that c-Myc is a key drug target of lanatoside C. Furthermore, we discovered that lanatoside C prompted c-Myc degradation in proteasome-ubiquitin pathway with attenuating the binding of USP28 to c-Myc. These findings indicate that lanatoside C targeted c-Myc ubiquitination to inhibit MKN-45 proliferation and support the potential value of lanatoside C as a chemotherapeutic candidate.
机译:胃癌是世界上癌症死亡率的第三个常见原因,由于缺乏有效的药物,预后和高复发性差。我们的研究表明,兰苷C,一种FDA批准的心糖苷对不同人类癌细胞系具有抗增殖影响(MKN-45; SGC-7901; HN4; MCF-7; HEPG2)和胃细胞系MKN-45 SGC-7901是最敏感的细胞系对Lanatoside C. MKN-45细胞,用LanaToside C处理,C 2 / M相显示细胞周期停滞,抑制细胞迁移。同时,裂解胱天蛋白酶-9的上调和切割的PARP和BCL-XL的下调伴随着线粒体膜电位(MMP)的丧失,诱导细胞内反应性氧(ROS)。 LanaToside C抑制Wnt /β-连环蛋白信号传导与C-myc的下调,同时过度表达C-myc逆转了兰苷苷C的抗肿瘤作用,证实C-MYC是LanaToside C的关键药物靶标。此外,我们发现Lanatoside C促进了蛋白酶体 - 泛素途径中的C-myc降解,并衰减USP28至C-myc的结合。这些发现表明,Lanatoside C靶向C-MYC ubiquitination以抑制MKN-45增殖并支持LanaToside C作为化学治疗候选者的潜在价值。

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  • 来源
    《Biochemical Pharmacology》 |2018年第2018期|共13页
  • 作者单位

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Xuzhou Med Univ Canc Inst Jiangsu Ctr Collaborat &

    Innovat Canc Biotherapy Xuzhou 221004;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Shanghai Jiao Tong Univ Sch Med Peoples Hosp 9 Dept Oral &

    Maxillofacial Head Neck Oncol;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Shanghai Jiao Tong Univ Sch Med Peoples Hosp 9 Dept Oral &

    Maxillofacial Head Neck Oncol;

    Bengbu Med Coll Dept Lab Med Res Ctr Canc Precis Med Bengbu 233030 Peoples R China;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

    Xuzhou Med Univ Canc Inst Jiangsu Ctr Collaborat &

    Innovat Canc Biotherapy Xuzhou 221004;

    Shanghai Jiao Tong Univ Sch Med Peoples Hosp 9 Dept Oral &

    Maxillofacial Head Neck Oncol;

    Shanghai Jiao Tong Univ Sch Pharm Engn Res Ctr Cell &

    Therapeut Antibody Minist Educ Shanghai;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 药理学;
  • 关键词

    Lanatoside C; Gastric cancer; beta-Catenin; c-Myc; Ubiquitination;

    机译:Lanatoside c;胃癌;β-连环蛋白;c-myc;泛素化;

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