| 槲皮苷:一种抑制钙调蛋白磷酸酶(CN)的新型免疫抑制剂 |
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| 引用本文： | 王梦奇,柳继琼,佟丽,谢雨菲,陈晖,赵长云,王磊,刘媛媛,高雅丹,张牧,向本琼,魏群.槲皮苷:一种抑制钙调蛋白磷酸酶(CN)的新型免疫抑制剂[J].生物化学与生物物理进展,2022(1):219-232. |
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| 作者姓名： | 王梦奇 柳继琼 佟丽 谢雨菲 陈晖 赵长云 王磊 刘媛媛 高雅丹 张牧 向本琼 魏群 |
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| 作者单位： | 北京师范大学生命科学学院;北京师范大学出版社;长沙理工大学化学与食品工程学院 |
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| 基金项目： | 国家自然科学基金(30970636)资助项目。 |
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| 摘 要： | 目的 以钙调蛋白磷酸酶(CN)为靶酶,从中草药中寻找高效、低毒的免疫抑制剂.方法 以CN为靶点,筛选并分离能够抑制其活性的天然化合物.在细胞和动物水平评价该化合物的免疫抑制效果及毒副作用,并通过荧光猝灭、分子对接、免疫印迹、双荧光素酶报告基因、实时定量PCR等实验探究天然化合物与CN的作用机理及可能的免疫抑制作用机制....
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| 关 键 词： | 槲皮苷 钙调神经磷酸酶 免疫 CN-NFAT信号通路 相互作用 |
Quercitrin:a New Immunosuppressant Inhibits Calcineurin |
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| WANG Meng-Qi,LIU Ji-Qiong,TONG Li,XIE Yu-Fei,CHEN Hui,ZHAO Chang-Yun,WANG Lei,LIU Yuan-Yuan,GAO Ya-Dan,ZHANG Mu,XIANG Ben-Qiong,WEI Qun.Quercitrin:a New Immunosuppressant Inhibits Calcineurin[J].Progress In Biochemistry and Biophysics,2022(1):219-232. |
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| Authors: | WANG Meng-Qi LIU Ji-Qiong TONG Li XIE Yu-Fei CHEN Hui ZHAO Chang-Yun WANG Lei LIU Yuan-Yuan GAO Ya-Dan ZHANG Mu XIANG Ben-Qiong WEI Qun |
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| Affiliation: | (Department of Biochemistry and Molecular Biology,Beijing Normal University,Gene Engineering and Biotechnology Beijing Key Laboratory,Beijing 100875,China;Beijing Normal University Publishing Group,Beijing 100088,China;School of Chemistry and Bioengineering,Changsha University of Science and Technology,Changsha 410114,China) |
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| Abstract: | Objective This study aimed to search for immunosuppressants with high-efficiency and low-toxicity from Chinese herbal medicine using calcineurin(CN)as the target enzyme.Methods Natural compound which could inhibit the activity of the target enzyme,CN,was screened and one effective compound was identified and isolated.The immunosuppressive effect and toxic side effects of the compound were evaluated at the cellular and animal levels.The underlying immunosuppressive mechanism was explored using fluorescence spectroscopy,molecular docking,Western blot,dual-luciferase reporter gene,real-time PCR,etc.Results Quercitrin inhibited CN activity both in vitro and in vivo.In addtion,it reduced the proliferation of splenocyte and ameliorated DTH symptoms in mice.Toxicological study showed that quercitrin had no or minimal toxic side effects on experimental animals.Fluorescence spectroscopy and molecular docking analysis showed that quercitrin may bind to two sites on the CN and regulate immune responses through the CN-NFAT pathway.Conclusion We identified a new CN inhibitor,quercitrin,which could be a useful novel immunosuppressant with low toxicity. |
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| Keywords: | quercitrin calcineurin immunity CN-NFAT signal pathway interaction |
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