刺激Toll样受体7以治愈病毒性肝炎。
Tickling the TLR7 to cure viral hepatitis.
作者信息
Funk Emily, Kottilil Shyam, Gilliam Bruce, Talwani Rohit
机构信息
Institute of Human Virology at the University of Maryland School of Medicine, 725 West Lombard St, N151, Baltimore, MD 21201, USA.
出版信息
J Transl Med. 2014 May 14;12:129. doi: 10.1186/1479-5876-12-129.
Chronic hepatitis B and C are the leading causes of liver disease and liver transplantation worldwide. Ability to mount an effective immune response against both HBV and HCV is associated with spontaneous clearance of both infections, while an inability to do so leads to chronicity of both infections. To mount an effective immune response, both innate and adaptive immune responses must work in tandem. Hence, developing protective immunity to hepatitis viruses is an important goal in order to reduce the global burden of these two infections and prevent development of long-term complications. In this regard, the initial interactions between the pathogen and immune system are pivotal in determining the effectiveness of immune response and subsequent elimination of pathogens. Toll-like receptors (TLRs) are important regulators of innate and adaptive immune responses to various pathogens and are often involved in initiating and augmenting effective antiviral immunity. Immune-based therapeutic strategies that specifically induce type I interferon responses are associated with functional cure for both chronic HBV and HCV infections. Precisely, TLR7 stimulation mediates an endogenous type I interferon response, which is critical in development of a broad, effective and protective immunity against hepatitis viruses. This review focuses on anti-viral strategies that involve targeting TLR7 that may lead to development of protective immunity and eradication of hepatitis B.
慢性乙型肝炎和丙型肝炎是全球肝脏疾病和肝移植的主要原因。对乙肝病毒和丙肝病毒产生有效免疫反应的能力与两种感染的自发清除相关,而无法产生有效免疫反应则会导致两种感染的慢性化。要产生有效免疫反应,固有免疫反应和适应性免疫反应必须协同作用。因此,发展对肝炎病毒的保护性免疫是一个重要目标,以减轻这两种感染的全球负担并预防长期并发症的发生。在这方面,病原体与免疫系统之间的初始相互作用对于确定免疫反应的有效性和随后病原体的清除至关重要。Toll样受体(TLR)是对各种病原体的固有免疫和适应性免疫反应的重要调节因子,并且经常参与启动和增强有效的抗病毒免疫。特异性诱导I型干扰素反应的基于免疫的治疗策略与慢性乙肝和丙肝感染的功能性治愈相关。确切地说,TLR7刺激介导内源性I型干扰素反应,这对于发展针对肝炎病毒的广泛、有效和保护性免疫至关重要。本综述重点关注涉及靶向TLR7的抗病毒策略,这可能会导致保护性免疫的发展和乙肝的根除。
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