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New genetic and epigenetic insights into the chemokine system: the latest discoveries aiding progression toward precision medicine 被引量:1
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作者 Hanli Xu Shuye Lin +13 位作者 Ziyun Zhou Duoduo Li Xiting Zhang Muhan Yu Ruoyi Zhao yiheng wang Junru Qian Xinyi Li Bohan Li Chuhan Wei Keqiang Chen Teizo Yoshimura Ji Ming wang Jiaqiang Huang 《Cellular & Molecular Immunology》 SCIE CAS CSCD 2023年第7期739-776,共38页
Over the past thirty years,the importance of chemokines and their seven-transmembrane G protein-coupled receptors(GPCRs)has been increasingly recognized.Chemokine interactions with receptors trigger signaling pathway ... Over the past thirty years,the importance of chemokines and their seven-transmembrane G protein-coupled receptors(GPCRs)has been increasingly recognized.Chemokine interactions with receptors trigger signaling pathway activity to form a network fundamental to diverse immune processes,including host homeostasis and responses to disease.Genetic and nongenetic regulation of both the expression and structure of chemokines and receptors conveys chemokine functional heterogeneity.Imbalances and defects in the system contribute to the pathogenesis of a variety of diseases,including cancer,immune and inflammatory diseases,and metabolic and neurological disorders,which render the system a focus of studies aiming to discover therapies and important biomarkers.The integrated view of chemokine biology underpinning divergence and plasticity has provided insights into immune dysfunction in disease states,including,among others,coronavirus disease 2019(COVID-19).In this review,by reporting the latest advances in chemokine biology and results fromanalyses of a plethora of sequencing-based datasets,we outline recent advances in the understanding of the genetic variations and nongenetic heterogeneity of chemokines and receptors and provide an updated view of their contribution to the pathophysiological network,focusing on chemokine-mediated inflammation and cancer.Clarification of the molecular basis of dynamic chemokine-receptor interactions will help advance the understanding of chemokine biology to achieve precision medicine application in the clinic. 展开更多
关键词 CHEMOKINE Chemokine receptor Migration HOMEOSTASIS GENETICS EPIGENETICS
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哺乳动物抑制型转录因子及启动子对的全新设计与构建
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作者 杨子杰 潘祎杰 +6 位作者 蔡毅鸣 傅彤 冯骜 刘燕 王一恒 熊心旋 蔡亮 《生物工程学报》 CAS CSCD 北大核心 2018年第12期1886-1894,共9页
转录因子及启动子是基因回路的基础。相较于原核启动子,真核启动子作用机制复杂,增加了全新设计与改造的难度。目前有限数量的真核转录因子及启动子成为在哺乳动物细胞中设计并实现复杂基因回路以满足各类临床或工业应用需求的瓶颈。文... 转录因子及启动子是基因回路的基础。相较于原核启动子,真核启动子作用机制复杂,增加了全新设计与改造的难度。目前有限数量的真核转录因子及启动子成为在哺乳动物细胞中设计并实现复杂基因回路以满足各类临床或工业应用需求的瓶颈。文中介绍了基于能够结合特定DNA序列的DNA结合结构域,通过柔性连接肽连接到转录抑制模块KRAB,构建抑制型转录因子以及通过在SV40启动子下游插入结合序列构建对应启动子的方法。而后,在哺乳动物细胞系中通过流式细胞术对其抑制转录的强度、不同转录因子及启动子对之间的正交性进行了测定。文中提供了一套标准化的、可调节的转录因子及启动子的全新设计与构建方案。基于该方案所构建的5对抑制型转录因子及启动子对能够在哺乳动物细胞中起到不同程度的抑制效果且相互正交。文中构建的哺乳动物转录因子及启动子对扩充了哺乳动物生物元件库,为构建复杂真核基因回路打下了基础;运用该设计方法能够根据需求构建更多正交的人工转录因子及启动子对。 展开更多
关键词 真核转录调控 人工转录因子 人工启动子 合成生物学 生物元件
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