The present invention relates to nucleic acid expression cassettes that are engineered to enhance gene expression. Vectors and methods employing the expression cassettes containing novel chimeric regulatory elements are provided. The invention is particularly useful for delivery of transgenes to target cells and confers desirable properties for liver-directed and muscle-directed or liver-directed and bone-directed gene therapy. Moreover, the invention relates to a novel method of engineering tandem enhancer/promoter elements and expressing transgenes for example within liver and/or muscle cells, and delivery of therapeutics for treating various disorders.

Oncolytic adenoviruses capable of selectively replicating in tumor cells deficient in p53 transcriptional activity are described. Recombinant adenovirus genomes that encode the p53-selective adenoviruses are also described. The recombinant adenoviruses and adenovirus genomes, or compositions thereof, can be used, for example, to reduce or inhibit tumor progression, or reduce tumor volume in a subject with a tumor having dysregulated p53 activity.

A DNA plasmid useful for diagnostic and therapeutic gene therapy is disclosed. Improvements to gene therapy methods known in the art are provided to ensure cancer-targeting, high efficacy, and long durability of expression. The DNA plasmid is combined with compositions of polymeric nanoparticles for non-viral gene therapy to treat cancer, including hepatocellular carcinoma and prostate cancer.

A pharmaceutical composition formulated for delivery of a recombinant adeno-associated virus (rAAV) vector comprising an AAV capsid and a vector genome having human galactosylceramidase (GALC) coding sequence is provided. Also provided are 5 methods and uses of a pharmaceutical composition comprising a rAAV for the treatment of Krabbe disease.

Provided herein are expression cassettes comprising at least one copy of an enhancer element, wherein the enhancer element comprises or consists essentially of a nucleotide sequence at least 50% identical to any one of SEQ ID NOs: 1-10 and vectors comprising the expression cassettes. Also provided herein are cells transduced with the expression cassettes or the vectors. Further described herein are pharmaceutical compositions comprising an effective amount of one or more of: the cell, the expression cassette, or the vector of this disclosure. Also disclosed herein are methods of treating a hemoglobinopathy in a subject, comprising administering an effective amount of the pharmacological compositions described herein.

The object of the present invention is to provide a polynucleotide which can be inserted into an expression vector and can enhance the transcriptional activity of a predetermined promoter under heart failure.

The object is achieved by an enhancer polynucleotide comprising a polynucleotide consisting of a sequence having 80% or more identity with a sequence represented by SEQ ID NO: 1, or a polynucleotide consisting of a sequence having 80% or more identity with a sequence represented by SEQ ID NO: 2, wherein the enhancer polynucleotide responds to heart failure (where the enhancer polynucleotide excludes a polynucleotide having the same sequence as a sequence represented by SEQ ID NO: 13 and a polynucleotide having the same sequence as a sequence represented by SEQ ID NO: 12).

Described herein are a synthetic cascading bistable switches (Syn-CBS) circuit. In some aspects, the SynCBS circuit is single-strain circuit with two coupled self-activation modules to achieve two successive cell fate transitions. In other aspects, the SynCBS circuit is a two-strain circuit where the self-activation modules are divided in two cells instead of being expressed in a single cell. Also described are plasmids encoding the Syn-CBS circuits.

Disclosed is an erythroid-specific human β-globin gene promoter and a human β-globin-expressing recombinant sequence, and use thereof, which belongs to the technical field of genetic engineering. An erythroid-specific human β-globin gene promoter with a nucleotide sequence set forth in SEQ ID NO: 1 is provided in the present disclosure, which may achieve high-efficiency and erythroid-specific initiation of the expression of a functional gene. A recombinant sequence specifically expressing human β-globin in erythroid cells is also provided in the present disclosure, which is human β-globin locus control region (LCR) HS 3-1+β-globin gene promoter+β-globin gene+β-globin gene enhancer.

Methods and materials for effective dosages of AAV gene therapy for the treatment and prophylaxis of hemophilia A.

The invention provides improved compositions for adoptive T cell therapies for B cell related conditions.