An obligate oHSV vector comprising modified viral DNA genome is provided. A recombinant oHSV-1 construct comprising the obligate oHSV vector and a heterologous nucleic acid sequence encoding an immunostimulatory and/or immunotherapeutic agent is also provided. Compositions comprising the recombinant oHSV-1 construct can be used for treating cancers.

Provided are an oncolytic virus and an application thereof, and a drug for treating a cancer. A first regulatory element and a second regulatory element are inserted into the genome of the oncolytic virus. The first regulatory element comprises a tumor-specific promoter and a first nucleic acid sequence, which is driven by the cancer cell specific promoter to express a specific protease in tumor cells; the second regulatory element comprises a second nucleic acid sequence for encoding an extracellular secretion signal peptide and a third nucleic acid sequence for encoding a specific cleavage site. The oncolytic virus can be replicated in tumor cells effectively to kill tumor cells while being safe to non-cancer cells.

The present invention relates to: a virus-containing pharmaceutical composition, which comprises, as an active ingredient, a virus for treating or preventing disease; and a preparation method therefor.

Provided are a combination drug for treating a malignant tumor, a pharmaceutical composition for treating a malignant tumor, and a pharmaceutical composition for malignant tumor treatment that have an exceptional antitumor effect. A malignant tumor can be treated by a combination drug containing a first medicine that includes an oncolytic virus belonging to the herpes simplex viruses type 1 as an active ingredient, and a second medicine that includes an interferon gene stimulating factor agonist as an active ingredient.

Disclosed is a pharmaceutical composition comprising oncolytic herpes simplex virus expressing IL12 and PD-1 antibody for treatment of cancer through systemic administration.

Proposed are a recombinant herpes simplex virus for multiple targeting and the use thereof. Particularly, a recombinant HSV capable of multiple targeting through multiple expression of an adapter, which is a fused protein of a cancer-cell-targeting domain and an extracellular domain of HVEM, a recombinant HSV capable of multiple targeting by having a modified glycoprotein so as to enable retargeting, in addition to being capable of expressing the adapter that is the fused protein of the cancer-cell-targeting domain and the extracellular domain of HVEM, and the use of the virus for anti-inflammatory therapy are disclosed.

A composition for expressing a polypeptide within a target organ, the composition comprising a delivery particle, and at least a first mRNA sequence complexed with, encapsulated by, or otherwise associated with the delivery particle. The mRNA sequence comprises a coding sequence which codes for the polypeptide, at least a first untranslated region (UTR) sequence, and at least one micro-RNA (miRNA) binding site sequence, wherein the miRNA binding site sequence is located within, immediately 5′ to, or immediately 3′ to, the first UTR sequence. The miRNA binding site sequence is selected so as to provide for differential expression of the coding sequence between first and second cell types comprised within the target organ. The composition may be used in combination with or to supplement other therapeutic approaches, including chemotherapy, oncolytic viral therapy, and cellular therapies. Methods for making and using the composition are provided, particularly in treatment of disease, such as cancer of the liver, brain, lung, breast and pancreas.

The present invention provides a method and a pharmaceutical composition for the treatment of the NDO comprising the viral expression vector carrying a transcription cassette that harbors transgene(s) inhibiting/silencing neurotransmission or synaptic transmission of afferent neurons.

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.