After transfecting H9C2 cells with optimal multiplicity of infection (MOI) of 10 and 100, lentivirus carrying the Fabp3 transcript (Lenti-F3) markedly increased FABP3 protein levels by more than four-fold compared to the empty control vector (Lenti-Ctl; Supplementary Figures 4C,D), which was supported by a higher FABP3 fluorescence value in the Lenti-F3 group (Supplementary Figure 4E). Here, FABP3 is linked to infection.