The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK.
Viruses. 2012 Dec;4(12):3389-419. doi: 10.3390/v4123389.
Prion diseases or transmissible spongiform encephalopathies are a unique category of infectious protein-misfolding neurodegenerative disorders. Hypothesized to be caused by misfolding of the cellular prion protein these disorders possess an infectious quality that thrives in immune-competent hosts. While much has been discovered about the routing and critical components involved in the peripheral pathogenesis of these agents there are still many aspects to be discovered. Research into this area has been extensive as it represents a major target for therapeutic intervention within this group of diseases. The main focus of pathological damage in these diseases occurs within the central nervous system. Cells of the innate immune system have been proven to be critical players in the initial pathogenesis of prion disease, and may have a role in the pathological progression of disease. Understanding how prions interact with the host innate immune system may provide us with natural pathways and mechanisms to combat these diseases prior to their neuroinvasive stage. We present here a review of the current knowledge regarding the role of the innate immune system in prion pathogenesis.
朊病毒病或传染性海绵状脑病是一类独特的传染性蛋白构象神经退行性疾病。这些疾病被认为是由细胞朊病毒蛋白错误折叠引起的,它们具有在免疫功能正常的宿主中繁殖的传染性。虽然已经发现了许多关于这些病原体外周发病机制中的途径和关键成分,但仍有许多方面有待发现。该领域的研究非常广泛,因为它代表了这群疾病中治疗干预的一个主要目标。在这些疾病中,主要的病理损伤发生在中枢神经系统内。先天免疫系统的细胞已被证明是朊病毒病初始发病机制中的关键参与者,并且可能在疾病的病理进展中发挥作用。了解朊病毒如何与宿主先天免疫系统相互作用,可能为我们提供在疾病神经侵袭阶段之前对抗这些疾病的天然途径和机制。我们在此综述了先天免疫系统在朊病毒发病机制中的作用的现有知识。