Even though norovirus gastroenteritis is normally self-limiting among immunocompetent individuals, it causes severe complications and fatal outcomes in immunocompromised patients. Hence novel and specific antiviral treatments are urgently needed. In this thesis, I aimed to adequately assess the burden of norovirus infection in hematopoietic stem cell transplant (HSCT) and solid organ transplant (SOT) recipients, and to further explore the potency and mechanism­of-action of several chemicals in this specific setting. I found that the burden of norovirus infection in transplant recipients was more severe than was expected, thus requiring specific treatment. Mycophenolic acid exerted potent anti-norovirus activity through depletion of guanosine pool. Interferons induced strong anti­norovirus ISGs including IRF-1, RIG-I and MDAS to combat norovirus replication. Nitazoxanide inhibited human norovirus through activation of host innate immunity. These information bears important implication for developing antivirals against norovirus gastroenteritis.

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M.P. Peppelenbosch (Maikel) , Q. Pan (Qiuwei)
Erasmus University Rotterdam
Department of Gastroenterology & Hepatology

Dang, W. (2018, September 12). Development of antivirals against norovirus: linking the bench to the bedside. Retrieved from http://hdl.handle.net/1765/110021