biostudies-literatureGowda DHokkaido Bureau of Economy, Trade and Industry (Strategic basic technology advancement support project), by the Ministry of Education, Culture, Sports, Science and TechnologyJapan Agency for Medical Research and DevelopmentJapanese Society for the Promotion of Science KAKENHI Grants20161https://www.ebi.ac.uk/biostudies/studies/S-EPMC8505484biostudies-literatureUnknown11(1)Influenza remains a world-wide health concern, causing 290,000-600,000 deaths and up to 5 million cases of severe illnesses annually. Noticing the host factors that control biological responses, such as inflammatory cytokine secretion, to influenza virus infection is important for the development of novel drugs. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite and has essential biological functions in inflammation. However, the kinetic effects of influenza virus infection on physiological S1P levels and their signaling in multiple tissues remain unknown. In this study, we utilized a mouse model intranasally infected with 50 or 500 plaque forming units (PFU) of A/Puerto Rico/8/34 (H1N1; PR8) virus to investigate how S1P levels and expression of its regulating factors areScientific reportsDefining the kinetic effects of infection with influenza virus A/PR8/34 (H1N1) on sphingosine-1-phosphate signaling in mice by targeted LC/MS.PMC850548420K233590019K0786109JP21wm012500819H031171921K1481201JP21fk010814218K0743408180117H01879Gowda DKida HB Gowda SGChiba HShingai MOhno MHui SPfalseDefining the kinetic effects of infection with influenza virus A/PR8/34 (H1N1) on sphingosine-1-phosphate signaling in mice by targeted LC/MS.Influenza remains a world-wide health concern, causing 290,000-600,000 deaths and up to 5 million cases of severe illnesses annually. Noticing the host factors that control biological responses, such as inflammatory cytokine secretion, to influenza virus infection is important for the development of novel drugs. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite and has essential biological functions in inflammation. However, the kinetic effects of influenza virus infection on physiological S1P levels and their signaling in multiple tissues remain unknown. In this study, we utilized a mouse model intranasally infected with 50 or 500 plaque forming units (PFU) of A/Puerto Rico/8/34 (H1N1; PR8) virus to investigate how S1P levels and expression of its regulating factors are2021-01-01T00:00:00Z2021 Oct2025-05-29T22:30:18.325Z2025-05-29T22:30:18.325ZS-EPMC85054843463579110.1038/s41598-021-99765-0