Compositions and methods for tissue specific gene regulation therapy

摘要

This invention relates to a recombinant nucleic acid vector comprising a first expression cassette comprising a first promoter operably linked to a nucleic acid sequence encoding a syncytium-inducing polypeptide, wherein the first expression cassette is flanked on either side by a site recognized by a recombinase. The invention also includes a second expression cassette comprising a tissue-specific promoter operably linked to a nucleic acid sequence encoding a recombinase. The invention also includes cells and compositions including these expression cassettes and methods of reducing tumor volume by expression of these expression cassettes.