An RNA composition comprising an RNA aptamer and an shRNA molecule and/or an miRNA molecule are provided. The RNA composition may include an aptamer component that binds an enzymatic protein within a target cell and an shRNA and/or an miRNA component that facilitates trafficking of the aptamer within the target cell, such as, trafficking from the nucleus into the cytoplasm. The RNA aptamer and the shRNA and/or the miRNA component of the composition can be a fusion or independent molecules.