(D) qPCR quantification of shGAG and flGAG-POL normalized to ACT2 and to GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE C SUBUNIT (GAPC) levels. qPCR was performed on n=3 biological replicates; bars: standard error. (**) = p-value < 0.01 (two-sided t-test between indicated values). 