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Lentiviral vector (LV) constructs and ex vivo explant culture system. (A) Schematic representation of self-inactivating vectors containing a central polypurine tract (cPPT)/central termination sequence, immediate early cytomegalovirus (CMV) promoter. Vectors were constructed for expression of beta-galactosidase (β-Gal) and firefly luciferase (fLuc).
