“…Moreover, it has to be mentioned that for immunotherapy, the lentiviral vectors are systemically administered, whereas in the case of gene therapy, the lentiviral vectors are most often administered in the Lentiviral vectors in cancer immunotherapy K Breckpot et al tissue of interest, resulting in transduction of these tissue-specific cells. [157][158][159][160][161] Second, when using ex vivo-transduced DC or targeting DC in vivo, terminally differentiated, nondividing cells are transduced as opposed to extensively proliferating cells in the SCID trial, thereby posing less of a risk for oncogenic transformations. Finally, when an immune response is induced in vivo, the effector cells will most likely kill cells that express the target antigen, including the transduced APC, thus, further reducing the risk for oncogenesis.…”