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首页> 外文期刊>Molecular cancer therapeutics >Trifluoperazine, a Well-Known Antipsychotic, Inhibits Glioblastoma Invasion by Binding to Calmodulin and Disinhibiting Calcium Release Channel IP3R
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Trifluoperazine, a Well-Known Antipsychotic, Inhibits Glioblastoma Invasion by Binding to Calmodulin and Disinhibiting Calcium Release Channel IP3R

机译:三氟吡咯,众所周知的抗精神病药抑制胶质母细胞瘤侵袭通过结合钙调蛋白并缺失钙释放通道IP3R

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摘要

Calcium (Ca2+) signaling is an important signaling process, implicated in cancer cell proliferation and motility of the deadly glioblastomas that aggressively invade neighboring brain tissue. We have previously demonstrated that caffeine blocks glioblastoma invasion and extends survival by inhibiting Ca2+ release channel inositol 1,4,5-trisphosphate receptor (IP3R) subtype 3. Trifluoperazine (TFP) is an FDA-approved antipsychotic drug for schizophrenia. Interestingly, TFP has been recently reported to show a strong anticancer effect on lung cancer, hepatocellular carcinoma, and T-cell lymphoma. However, the possible anticancer effect of TFP on glioblastoma has not been tested. Here, we report that TFP potently suppresses proliferation, motility, and invasion of glioblas-toma cells in vitro, and tumor growth in in vivo xenograft mouse model. Unlike caffeine, TFP triggers massive and irreversible release of Ca2+ from intracellular stores by IP3R subtype 1 and 2 by directly interacting at the TFP-binding site of a Ca2+-binding protein, calmodulin subtype 2 (CaM2). TFP binding to CaM2 causes a dissociation of CaM2 from IP3R and subsequent opening of IP3R. Compared with the control neural stem cells, various glioblastoma cell lines showed enhanced expression of CaM2 and thus enhanced sensitivity to TFP. On the basis of these findings, we propose TFP as a potential therapeutic drug for glioblastoma by aberrantly and irreversibly increasing Ca2+ in glioblastoma cells. (C) 2016 AACR.
机译:钙(CA2 +)信号传导是一种重要的信号传导过程,涉及致命胶质细胞的癌细胞增殖和运动性,即积极入侵邻近的脑组织。我们之前已经证明,通过抑制Ca2 +释放通道肌醇1,4,5-三磷酸酯受体(IP3R)亚型3.三氟吡啶(TFP)是精神分裂症的FDA批准的抗精神病药的溶血素抑制瘤侵袭和延伸生存。有趣的是,TFP最近据报道,对肺癌,肝细胞癌和T细胞淋巴瘤呈现出强烈的抗癌影响。然而,TFP在胶质母细胞瘤上可能的抗癌效果尚未得到测试。在这里,我们认为TFP效果抑制了体外胶质细胞的增殖,运动和侵袭,以及体内异种移植小鼠模型中的肿瘤生长。与咖啡因不同,TFP通过IP3R亚型1和2通过在Ca2 + - 粘结蛋白的TFP结合位点直接相互作用,TFP从细胞内储存通过IP3R亚型1和2,通过直接相互作用,钙调蛋白亚型2(CAM2)。 TFP与CAM2的结合导致CAM2的解离IP3R和随后的IP3R开度。与对照神经干细胞相比,各种胶质母细胞系细胞系显示了CAM2的增强表达,从而提高了对TFP的敏感性。在这些发现的基础上,我们将TFP作为胶质母细胞瘤的潜在治疗药物作为胶质母细胞瘤细胞中的CA2 +来提出胶质母细胞瘤的潜在治疗药物。 (c)2016 AACR。

著录项

  • 来源
    《Molecular cancer therapeutics》 |2017年第1期|共11页
  • 作者单位

    Gyeongsang Natl Univ Dept Anat &

    Convergence Med Sci Inst Hlth Sci Sch Med Jinju South Korea;

    Korea Inst Sci &

    Technol Brain Sci Inst Ctr Neurosci &

    Funct Connect 5 Hwarang Ro 14 Gil Seoul;

    Korea Inst Sci &

    Technol Brain Sci Inst Ctr Neurosci &

    Funct Connect 5 Hwarang Ro 14 Gil Seoul;

    Seoul Natl Univ Dept Neurosurg Coll Med Seoul South Korea;

    Korea Univ Sci &

    Technol Dept Biol Chem Daejeon South Korea;

    Korea Inst Toxicol Gyeongnam Dept Environm Toxicol &

    Chem Jinju South Korea;

    Gyeongsang Natl Univ Dept Anat &

    Convergence Med Sci Inst Hlth Sci Sch Med Jinju South Korea;

    Seoul Natl Univ Dept Neurosurg Coll Med Seoul South Korea;

    Korea Inst Sci &

    Technol Chem Kin Res Ctr Seoul South Korea;

    Korea Inst Sci &

    Technol Brain Sci Inst Ctr Neurosci &

    Funct Connect 5 Hwarang Ro 14 Gil Seoul;

    Gyeongsang Natl Univ Dept Anat &

    Convergence Med Sci Inst Hlth Sci Sch Med Jinju South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 肿瘤学;
  • 关键词

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