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Insight to Pyroptosis in Viral Infectious Diseases 被引量:2
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作者 Junxia Li Lijun Chen +6 位作者 changhui zhou Yifan Bai Ruiyan Zhao Jinge Zhang Xiaoqiao Xu Xingyi Ge Ye Qiu 《Health》 2021年第5期574-590,共17页
<strong>Background: </strong>Pyroptosis is defined as programmed necrosis executed by gasdermin D or E (GSDMD or GSDME), which punches cellular membrane. Morphologically, pyroptosis is characterized by cel... <strong>Background: </strong>Pyroptosis is defined as programmed necrosis executed by gasdermin D or E (GSDMD or GSDME), which punches cellular membrane. Morphologically, pyroptosis is characterized by cell swelling and cell membrane rupture, leading to the release of cellular contents that triggers intense inflammatory response. More and more studies have found that pyroptosis may be involved in the pathogenesis of viral infection, which may be a determinant for inflammation observed in most viral diseases. <strong>Objective:</strong> This paper aims to summarize the roles of pyroptosis in the pathogenesis of viral infectious diseases and to provide potential drug targets for the treatment of viral diseases, which will contribute to medical research and public health. <strong>Measures:</strong> This paper mainly summarizes pyroptosis occurring in diseases caused by different viruses, including human immunodeficiency virus, hepatitis virus, enterovirus, influenza virus and dengue fever virus. Meanwhile, the reported mechanism underlying pyroptosis mediating pathogenesis of these viral diseases will also be described. <strong>Conclusion:</strong> Current studies have shown that pyroptosis is a double-edged sword in viral infectious diseases. On one hand, pyroptosis leads to pathogenic inflammation of many viral infectious diseases which aggravate tissue damage initiated by viral infection, and blocking proptosis usually relieves the inflammation, which exerts therapeutic effects on viral diseases. On the other hand, moderating pyroptosis can contribute to defense against pathogen infection by releasing immune epitopes and inducing antiviral immune response. 展开更多
关键词 PYROPTOSIS Viral Infectious Diseases Gasdermin D Gasdermin E CASPASE INFLAMMATION
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纳米银颗粒及纳米二氧化钛颗粒的体外遗传毒性研究 被引量:1
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作者 朱海美 黄鹏程 +6 位作者 赵田田 周长慧 李若婉 于春荣 陈志勇 顾林峰 常艳 《遗传》 CAS CSCD 北大核心 2020年第12期1192-1200,共9页
纳米物质以其独特的物理性质广泛用于化妆品、医药和食品工业,但它们的安全性和遗传毒性仍然存在争议。本研究拟采用基于人成淋巴TK6细胞的体外彗星实验整合体外PIG-A基因突变实验对纳米银颗粒(AgNPs)和纳米二氧化钛颗粒(TiO2NPs)的致DN... 纳米物质以其独特的物理性质广泛用于化妆品、医药和食品工业,但它们的安全性和遗传毒性仍然存在争议。本研究拟采用基于人成淋巴TK6细胞的体外彗星实验整合体外PIG-A基因突变实验对纳米银颗粒(AgNPs)和纳米二氧化钛颗粒(TiO2NPs)的致DNA断裂作用和致突变性进行初步研究。本研究探究了最高至200μmol/L浓度时,TK6细胞暴露于两种纳米物质4 h时的彗星实验和经过暴露24 h以及10 d基因突变表达期后的PIG-A基因突变结果。同时,本研究还检测了TK6细胞暴露于纳米颗粒4 h及24 h对纳米物质的摄取能力。在纳米物质摄取实验中,随着纳米物质浓度的升高,TK6细胞在流式细胞仪检测图中的侧向散射角(side scatter,SSC)呈现浓度与时间依赖性升高,表明TK6细胞可摄取两种纳米颗粒。在4 h彗星实验中,AgNPs可导致彗星尾DNA荧光%强度呈现浓度依赖性显著升高,为阳性结果。而TiO2NPs则不能诱导彗星尾DNA荧光%强度呈现浓度依赖性显著升高,但最高浓度组尾DNA荧光%超过本实验室阴性历史对照数据,为可疑结果。而在体外PIG-A基因突变实验结果中,AgNPs和TiO2NPs均不能诱导TK6细胞的PIG-A基因突变率出现阳性升高。AgNPs可导致TK6细胞出现DNA损伤,但不能诱导PIG-A基因突变率升高。TiO2NPs既不能诱导TK6细胞出现DNA损伤,也不能诱导PIG-A基因突变率升高,TiO2NPs的遗传毒性有待进一步验证。 展开更多
关键词 纳米银颗粒 纳米二氧化钛颗粒 彗星实验 PIG-A基因突变实验 遗传毒性
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