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Anti-inflammatory actions of Caesalpinin M2 in experimental colitis as a selective glucocoricoid receptor modulator

机译:实验性结肠炎中CaeSalpininm2的抗炎作用作为一种选择性葡糖醇受体调节剂

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摘要

Although repression of inflammatory gene expression makes glucocorticoids (GCs) powerful anti-inflammatory agents, side effects limit usage and drive the search for improved glucocorticoid receptor (GR) ligands. It has been postulated that the anti-inflammatory effects of GCs are primarily mediated by GR's activity in transrepressing major inflammation pathways such as NF-kappa B pathway, whereas their side effects are mostly mediated by GR's transactivation. In this study, we found that Caesalpinin M2 (C-M2), a cassane furanoditerpene isolated from a Chinese medical plant, exerts an anti-inflammatory potential both in vitro and in vivo. C-M2 inhibited the expression of proinflammatory cytokine IL-113 and IL-6 in LPS-activated bone marrow-derived macrophages. Meanwhile, C-M2 treatment attenuated DSS-induced experimental acute colitis in mice and did not cause side effects, such as spleen involution, like dexamethasone treatment. Molecular docking and cellular thermal shift assay demonstrated that C-M2 could bind to GR in the ligand binding site. We showed that C-M2 mediates gene inhibitory effects by activating GR. More importantly, C-M2 failed to induce GR binding to glucocorticoid response element-dependent genes and in turn activate their transcription. But it did repress NF-kappa B-dependent transcription by facilitating the interaction between GR and p65. Taken together, this non-steroidal compound of plant origin may exert anti-inflammatory actions as a selective GR modulator and might hold great potential for therapeutic use in inflammatory diseases.
机译:尽管抑制炎症基因表达使糖皮质激素(GCS)强大的抗炎剂,副作用限制使用并驱动搜索改进的糖皮质激素受体(GR)配体。已经假定了GCs的抗炎作用主要由GR的术语介导在血液调压中,例如NF-Kappa B途径,而它们的副作用主要由GR的转移激活介导。在这项研究中,我们发现从中国医用植物中分离的CaEsalpininm2(C-M2),肉豆呋喃二萜烯,在体外和体内施加抗炎潜力。 C-M2抑制LPS-活化的骨髓衍生的巨噬细胞中促炎细胞因子IL-113和IL-6的表达。同时,C-M2治疗减毒诱导的DSS诱导的小鼠实验急性结肠炎,并没有引起副作用,例如脾脏的疗法,如地塞米松治疗。分子对接和细胞热移测定表明C-M2可以在配体结合位点中结合GR。我们表明C-M2通过激活GR介导基因抑制作用。更重要的是,C-M2未能诱导GR与糖皮质激素响应元素依赖性基因的结合,并且反过来激活它们的转录。但它通过促进GR和P65之间的相互作用来压制NF-Kappa B依赖性转录。占据了这种非甾体类化合物的植物来源可以作为选择性GR调节剂发挥抗炎作用,并且可能对炎性疾病的治疗用途具有很大的潜力。

著录项

  • 来源
    《Biochemical Pharmacology》 |2018年第2018期|共10页
  • 作者单位

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Shenyang Pharmaceut Univ Sch Tradit Chinese Mat Med Shenyang 110016 Liaoning Peoples R China;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Shenyang Pharmaceut Univ Sch Tradit Chinese Mat Med Shenyang 110016 Liaoning Peoples R China;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

    Nanjing Univ Sch Life Sci State Key Lab Pharmaceut Biotechnol Nanjing 210093 Jiangsu Peoples R;

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

    Anti-inflammation; Caesalpinin M2; Glucocorticoid receptor; NF-kappa 3; Experimental colitis;

    机译:抗炎;CaeSalpininm2;糖皮质激素受体;NF-Kappa 3;实验性结肠炎;

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