Molecular Biology Reports

, Volume 41, Issue 5, pp 3279–3286 | Cite as

TLR3 plays significant roles against hepatitis B virus

  • Masoud Karimi-Googheri
  • Mohammad Kazemi ArababadiEmail author


Hepatitis B virus (HBV) as the main prevalent infectious agent, play important roles in inducing severe liver diseases. Previous studies demonstrated that during prolonged forms of hepatitis B infection including chronic, asymptomatic and occult forms, patients are unable to eradicate HBV from hepatocytes completely. The main mechanisms responsible for development of the forms of hepatitis B are yet to be identified. Investigators suggested that the various genetic and immunological parameters of the patients may are responsible for resulting in the prolonged infection forms. It has been evidenced that TLRs play key roles in inducing appropriate immune responses, against viral infections. Therefore, these molecules can be considered as crucial sensors for HBV detection to induce immune responses against this virus. It has also been documented that the TLR3 detects intracellular viral dsRNA and subsequently activates NF-κB via the TRIF pathway. Therefore, impaired TLR3 expression may result in inappropriate immune responses against HBV which is reported in prolonged forms of hepatitis B. This review collected the recent information regarding the important roles of TLR3 in immune responses against HBV and also the status of TLR3 expression and its genetic variations in prolonged forms of HBV infections.


Prolonged HBV infection TLR3 Polymorphism dsRNA 



Toll like receptor


Pathogen associated molecular patterns


Hepatitis B virus


Myeloid differentiation primary response


Interleukin-1 receptor associated kinase-1


TNF receptor associated factor


Nuclear factor kappa-light-chain-enhancer of activated B cells


DNA methyltransferase 1


Transforming growth factor b-activated kinase 1


Mitogen-activated protein kinase


Activator protein 1


Peripheral blood mononuclear cell


Nicotinamide adenine dinucleotide phosphate


Major histocompatibility complex


Interferon regulatory factor



This project was granted by the Rafsanjan University of Medical Sciences.


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Masoud Karimi-Googheri
    • 1
  • Mohammad Kazemi Arababadi
    • 2
    Email author
  1. 1.Department of Immunology, Faculty of MedicineKerman University of Medical SciencesKermanIran
  2. 2.Immunology of Infectious Diseases Research CenterRafsanjan University of Medical SciencesRafsanjanIran

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