id author title date pages extension mime words sentences flesch summary cache txt cord-308461-4lhh3du0 Ueki, Hiroshi Multicolor two-photon imaging of in vivo cellular pathophysiology upon influenza virus infection using the two-photon IMPRESS 2020-01-29 .txt text/plain 8337 517 47 Unlike ex vivo methods, which involve isolated or sliced lungs, in vivo imaging using two-photon excitation microscopy of live animals enables researchers to observe hemodynamics, migration and extravasation of immune cells, as well as interactions among immune cells during influenza virus infection. To detect multiple fluorescent signals excited simultaneously by a two-photon excitation laser, fluorochromes with different spectra and equal brightness must be selected; however, there is currently no comprehensive database of fluorescent reagents, fluorescent reporter viruses, and reporter mouse lines available for lung in vivo imaging. Our system uses suction-based lung stabilization 16, 28 to improve an existing in vivo two-photon imaging system for influenza virus-infected lung as a model of an acute inflammatory respiratory disease 5 . In vivo two-photon imaging is performed under conditions of single stimulation with a two-photon excitation laser; limitations exist regarding available fluorescent reagents/proteins for multiple labeling of target cells and lung architecture. ./cache/cord-308461-4lhh3du0.txt ./txt/cord-308461-4lhh3du0.txt