艾滋病(AIDS)是由人类免疫缺陷病毒(HIV)引起的获得性机体免疫缺陷综合征。高效抗反转录病毒治疗是目前治疗AIDS患者最有效的方法,其虽可降低病人体内病毒载量,但却不能彻底清除病毒。2012年“shock and kill”治疗策略被提出,该策略利...艾滋病(AIDS)是由人类免疫缺陷病毒(HIV)引起的获得性机体免疫缺陷综合征。高效抗反转录病毒治疗是目前治疗AIDS患者最有效的方法,其虽可降低病人体内病毒载量,但却不能彻底清除病毒。2012年“shock and kill”治疗策略被提出,该策略利用HIV潜伏激活剂(LRA)激活潜伏在CD4+T细胞内的HIV-1使其暴露,随后通过增强免疫系统或采用抗病毒药物消灭携带有病毒的宿主细胞,从而逐渐清除病毒潜伏库,最终实现艾滋病的功能性治愈。HIV-1潜伏机制主要有5种:表观遗传学调控、转录因子对基因的调控、免疫信号通路的调节、前病毒基因整合位点的影响和微RNA的影响。基于HIV-1的潜伏机制,目前有潜力作为LRA的药物主要包括表观遗传修饰剂、转录因子调节剂和免疫激活剂等。本文对以上几类药物的作用机制、代表性药物以及研究进展进行综述,以期为LRA研发提供思路。展开更多
Objective： To review the recent literatures related to the factors associated with the size of the HIV reservoir and their clinical significance. Data Sources： Literatures related to the size of HIV DNA was collecte...Objective： To review the recent literatures related to the factors associated with the size of the HIV reservoir and their clinical significance. Data Sources： Literatures related to the size of HIV DNA was collected from PubMed published from 1999 to June 2016. Study Selection： All relevant articles on the HIV DNA and reservoir were collected and reviewed, with no limitation of study design. Results： The composition and development of the HIV- 1 DNA reservoir in either treated or untreated patients is determined by integrated mechanism comprising viral characteristics, immune system, and treatment strategies. The HIV DNA reservoir is a combination of latency and activity. The residual viremia from the stochastic activation of the reservoir acts as the fuse, continuing to stimulate the immune system to maintain the activated microenvironment for the rebound of competent virus once treatment with antiretroviral therapy is discontinued. Conclusion： The size of the HIV-1 DNA pool and its composition has great significance in clinical treatment and disease progression.展开更多
In 1981,the US Centers for Disease Control and Prevention journal Morbidity and Mortality Weekly Report reported five cases of acquired immunodeficiency syndrome(AIDS).1,2 Subsequently,in 1983,French scientists Franco...In 1981,the US Centers for Disease Control and Prevention journal Morbidity and Mortality Weekly Report reported five cases of acquired immunodeficiency syndrome(AIDS).1,2 Subsequently,in 1983,French scientists Francoise Barre-Sinoussi and LucMontagnier,Nobel laureates in 2008,found a new retrovirus from the blood of AIDS patients,which was later named as human immunodeficiency virus(HIV).3 From then on,the battle between HIV/AIDS and humankind started.展开更多
干细胞样记忆型T细胞(Stem memory T cells,Tscm)是最早期分化的、存活时间最长的一类记忆型T细胞。这类细胞具有自我更新及多能分化等干细胞特性,其在抗肿瘤中具有重要的作用,在HIV-1感染中的作用也开始成为研究热点。本文对Tscm细胞...干细胞样记忆型T细胞(Stem memory T cells,Tscm)是最早期分化的、存活时间最长的一类记忆型T细胞。这类细胞具有自我更新及多能分化等干细胞特性,其在抗肿瘤中具有重要的作用,在HIV-1感染中的作用也开始成为研究热点。本文对Tscm细胞的特点、CD4+Tscm细胞在HIV-1病毒储藏库中的重要性及CD8+Tscm细胞抗病毒作用的最新研究进行介绍。了解并充分利用Tscm细胞的特性及其在HIV-1感染中的作用,将有助于开发以Tscm为靶点的HIV-1疫苗及免疫治疗新方法,为HIV-1的防控及功能性治愈提供新的策略。展开更多
文摘艾滋病(AIDS)是由人类免疫缺陷病毒(HIV)引起的获得性机体免疫缺陷综合征。高效抗反转录病毒治疗是目前治疗AIDS患者最有效的方法,其虽可降低病人体内病毒载量,但却不能彻底清除病毒。2012年“shock and kill”治疗策略被提出,该策略利用HIV潜伏激活剂(LRA)激活潜伏在CD4+T细胞内的HIV-1使其暴露,随后通过增强免疫系统或采用抗病毒药物消灭携带有病毒的宿主细胞,从而逐渐清除病毒潜伏库,最终实现艾滋病的功能性治愈。HIV-1潜伏机制主要有5种:表观遗传学调控、转录因子对基因的调控、免疫信号通路的调节、前病毒基因整合位点的影响和微RNA的影响。基于HIV-1的潜伏机制,目前有潜力作为LRA的药物主要包括表观遗传修饰剂、转录因子调节剂和免疫激活剂等。本文对以上几类药物的作用机制、代表性药物以及研究进展进行综述,以期为LRA研发提供思路。
文摘Objective： To review the recent literatures related to the factors associated with the size of the HIV reservoir and their clinical significance. Data Sources： Literatures related to the size of HIV DNA was collected from PubMed published from 1999 to June 2016. Study Selection： All relevant articles on the HIV DNA and reservoir were collected and reviewed, with no limitation of study design. Results： The composition and development of the HIV- 1 DNA reservoir in either treated or untreated patients is determined by integrated mechanism comprising viral characteristics, immune system, and treatment strategies. The HIV DNA reservoir is a combination of latency and activity. The residual viremia from the stochastic activation of the reservoir acts as the fuse, continuing to stimulate the immune system to maintain the activated microenvironment for the rebound of competent virus once treatment with antiretroviral therapy is discontinued. Conclusion： The size of the HIV-1 DNA pool and its composition has great significance in clinical treatment and disease progression.
文摘In 1981,the US Centers for Disease Control and Prevention journal Morbidity and Mortality Weekly Report reported five cases of acquired immunodeficiency syndrome(AIDS).1,2 Subsequently,in 1983,French scientists Francoise Barre-Sinoussi and LucMontagnier,Nobel laureates in 2008,found a new retrovirus from the blood of AIDS patients,which was later named as human immunodeficiency virus(HIV).3 From then on,the battle between HIV/AIDS and humankind started.
文摘干细胞样记忆型T细胞(Stem memory T cells,Tscm)是最早期分化的、存活时间最长的一类记忆型T细胞。这类细胞具有自我更新及多能分化等干细胞特性,其在抗肿瘤中具有重要的作用,在HIV-1感染中的作用也开始成为研究热点。本文对Tscm细胞的特点、CD4+Tscm细胞在HIV-1病毒储藏库中的重要性及CD8+Tscm细胞抗病毒作用的最新研究进行介绍。了解并充分利用Tscm细胞的特性及其在HIV-1感染中的作用,将有助于开发以Tscm为靶点的HIV-1疫苗及免疫治疗新方法,为HIV-1的防控及功能性治愈提供新的策略。
