Inventors:
Victor Solodushko - Mobile AL, US
Brian Fouty - Spanish Fort AL, US
Assignee:
UNIVERSITY OF SOUTH ALABAMA - Mobile AL
International Classification:
C12N 15/867, C12N 5/071
Abstract:
The present invention is directed to methods for enhanced retroviral delivery of a nucleic acid to a target cell in vitro, ex vivo or in vivo, which involves increasing infectivity of a retrovirus carrying a transgene of interest to a target cell. In one particular aspect the invention relates to a method for increasing retroviral infectivity of target cells comprising culturing packaging cells transfected with retroviral vector containing a transgene of interest in medium containing a glucocorticoid receptor agonist or analog or derivative thereof present in the medium in an amount effective to increase titer of propagated retrovirus; and subsequently culturing a target cell in medium comprising the propagated retrovirus from a) and a glucocorticoid receptor antagonist or analog or derivative thereof present in the medium in an amount effective to increase target cell sensitivity to infection by the propagated retrovirus.