Use of a DNA expression construct

摘要

The present invention relates to the use of a DNA expression construct comprising a dumbbell- shaped circular strand of deoxyribonucleic acids and provides such a construct with a double- stranded stem and single-stranded loops located at both ends of the stem, wherein the stem comprises complementary deoxyribonucleic acids of the circular strand with a promotor sequence, a coding sequence and a termination signal to be administered by jet injection for the treatment of cancer.