title: Role of pattern recognition receptors in flavivirus infections.
abstract: The flaviviral encephalitis has now become a major health concern in global scale. The efficient detection of viral infection and induction of the innate antiviral response by host's innate immune system are crucial to determine the outcome of infection. The intracellular pattern recognition receptors TLRs, RLRs, NLRs and CLRs play a central role in detection and initiation of robust antiviral response against flaviviral infection. Both cytoplasmic RLRs, RIG-I and MDA5 have been shown to be implicated in sensing flaviviral genomic RNA. Similarly among TLRs mainly TLR3 and TLR7 are known to respond in flaviviral infections as they are known to sense dsRNA and ssRNA moiety as their natural cognate ligand. Several studies have also shown the roles of NLRs and CLRs in mounting an innate antiviral response against flavivirus but, it is yet to be completely understood. Until now only few reports have implicated NLRs and CLRs in induction of antiviral and proinflammatory state following flaviviral infection. The current review therefore aims to comprehensively analyze past as well as current understanding on the role of PRRs in flaviviral infections.
authors.affiliation: National Brain Research Centre, Manesar, Haryana 122051, India. Electronic address: arshedsxc@gmail.com.
authors.forename: Arshed
authors.initials: A
authors.lastname: Nazmi
authors.affiliation: National Brain Research Centre, Manesar, Haryana 122051, India.
authors.forename: Kallol
authors.initials: K
authors.lastname: Dutta
authors.affiliation: National Brain Research Centre, Manesar, Haryana 122051, India.
authors.forename: Bibhabasu
authors.initials: B
authors.lastname: Hazra
authors.affiliation: National Brain Research Centre, Manesar, Haryana 122051, India. Electronic address: anirban@nbrc.ac.in.
authors.forename: Anirban
authors.initials: A
authors.lastname: Basu
mesh_terms: D000818:Animals; D005416:Flavivirus / Q000235:genetics / Q000502:physiology*; D018177:Flavivirus Infections / Q000235:genetics / Q000276:immunology* / Q000821:virology; D006801:Humans; D007113:Immunity, Innate; D051192:Receptors, Pattern Recognition / Q000235:genetics / Q000276:immunology*; D015398:Signal Transduction
chemical_list: D051192:Receptors, Pattern Recognition
keywords: Antivirals; Cytokine; Flavivirus; Innate immunity; PRRs