Figure 1.
Effects of lentivirus transduction and doxycycline-induced ChR2 expression on NRVM cultures. (A and B) Fluorescent and phase-contrast images, respectively, of a ChR2-transduced monolayer; (C) Phase-contrast image of a control monolayer; (D) Confocal image of ChR2-expressing cardiomyocytes; (E and F) Fluorescent and phase-contrast images, respectively, of a ChR2-expressing monolayer pretreated with BrdU; (G) ChR2 transduction efficiency in cell cultures with or without BrdU pretreatment (two-tailed unpaired Student’s t test, n = 6); and (H) Effect of BrdU on ChR2-eYFP fluorescence intensity averaged over monolayer (two-tailed unpaired Student’s t test, n = 6).