Polyethylene glycol (PEG)-b-poly(β-amino ester) (PBAE) co-polymers (PEG-PBAE) and blends of PEG-PBAEs and PBAEs and their use for delivering drugs, genes, and other pharmaceutical or therapeutic agents safely and effectively to different sites in the body and to different cells, such as cancer cells, are disclosed.

Provided are a virus and a tumor therapeutic drug for specifically killing tumor cells. The virus is a recombinant oncolytic virus, and the genome thereof has an exogenous promoter inserted which is located upstream of an essential gene of the virus to replace the exogenous promoter of the essential gene, and to drive the expression of the essential gene in tumor cells but not in normal cells. The virus can kill a variety of tumor cells with an efficacy similar to that of the wild-type virus while it is safe to non-tumor cells. In vivo studies indicate that the oncolytic viruses provided in this disclosure can significantly inhibit tumor growth in various tumor animal models.

The invention relates to the use of an oncolytic virus in a neoadjuvant treatment regimen for the treatment of cancer.

The present invention is directed to Herpes simplex-2 viruses that may be used in vaccines to immunize patients against genital herpes.

The present invention relates to a recombinant herpes simplex virus (HSV) containing an expression cassette capable of expressing a fused protein of a cancer-cell-targeting domain and an extracellular domain of HVEM and the use thereof. When the recombinant HSV infects and enters target cells, which are cancer cells, HSV proliferates, and an adapter, which is the fused protein, is expressed in the cells and is released to the outside of the cells along with the proliferated HSV virion upon cell lysis, or is released even before the virion is released due to cell lysis when the adapter contains a leader sequence, and the fused protein released to the outside of the cells acts to induce the HSV virion to infect surrounding cancer cells expressing a target molecule recognized by the cancer-cell-targeting domain or to increase the infection efficiency thereof.

The present disclosure relates to one or more agents, therapies, treatments, and methods of use of the agents and/or therapies and/or treatments for increasing production of a TLR3 precursor protein. Embodiments of the present disclosure can be used as a therapy or a treatment for a subject that has a condition whereby the subject's immune system is, or is likely to become, dysregulated and where the production of the TLR3 precursor protein may result in an increased production of a functional and bioavailable TLR3 protein product, which may be of therapeutic benefit.

The use of iNOS inhibitors, including aurintricarboxylic acid, dexamethasone and valproic acid, to increase the yield of a variety of viruses in culture, including recombinant herpesviruses is described.

Methods and compositions for increasing the production of recombinant proteins by introducing ICP0 to cells capable of producing a recombinant protein are encompassed. In one method, the recombinant protein is a protein that is required for the replication of a replication defective virus, wherein the recombinant protein is provided to the replication defective virus in trans.

Methods and compositions for increasing the production of recombinant proteins by introducing ICP0 to cells capable of producing a recombinant protein are encompassed. In one method, the recombinant protein is a protein that is required for the replication of a replication defective virus, wherein the recombinant protein is provided to the replication defective virus in trans.

The present invention relates to the use of oncolytic viruses (e.g., modified HSV-1 viruses) for the treatment of various types of cancer. In addition, the present invention relates to compositions and kits relating to such uses of oncolytic viruses.