...-term protein expression observed using transient transfection approaches, generating cell lines using...experiments in a stable cell line, as opposed to transiently-transfected cells, increases reproducibility, as it... the variation associated with repeated transient transfection. Some lentiviral vectors deliver mammalian...stable cell culture after transduction. Performing antibiotic selection on transduced cells enables elimination... the final concentration of polybrene in each well should be 10 µg/mL. Pro-Tip Transducing too many cells... may have 1 copy of the transgene, while others have >1 copy of the transgene in their genome. This can...high levels of the transgene may have reduced growth rates, especially if that transgene is toxic. Eventually...