Abstract: Disclosed herein is an oncolytic HSV-1 virus genetically engineered for treatment of brain tumors, which lacks both copies of gamma 34.5 gene and an internal inverted repeat region and is optionally incorporated with immunostimulatory and/or immunotherapeutic genes. The oncolytic HSV-1 virus exhibited superior anti-tumor activity specifically in brain tumors. A pharmaceutical composition comprising the oncolytic HSV-1 virus and a pharmaceutically acceptable carrier, and a method of treatment of a brain tumor using the same is also disclosed.

Abstract: Disclosed is an engineered exosome comprising a miRNA targeting human epidermal growth factor receptor 2 (HER2) synthesis and a ligand displayed on a membrane of the exosome for specific binding to a HER2 protein expressed on a cancer cell.

Abstract: The present invention relates to use of gTso thal in manufacturing a medicament for the promotion of MS-275 to cross the blood-brain barrier (BBB), and belongs to the technical field of pharmaceutical preparation. Administration of the medicament manufactured by the use of the present invention in combination with MS-275 significantly increases MS-275 to cross the BBB into the brain tissue, and prominently promotes the accumulation of MS-275 therein.

Abstract: Provided is a composition for treating tumors in a subject comprising a therapeutically effective amount of an exosome carrying CTLA4-targeting miRNA and a therapeutically effective amount of an oncolytic herpes simplex virus expressing an immunostimulatory agent or both an immunostimulatory agent and an anti-PD-1 antibody. Wherein an exo-motif operably links to the seed sequence of the CTLA4-targeting miRNA to enhance the packaging of the CTLA4-targeting miRNA into the exosome.

Abstract: 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.

Abstract: The present invention relates to use of gTso thal in manufacturing a medicament for the promotion of MS-275 to cross the blood-brain barrier (BBB), and belongs to the technical field of pharmaceutical preparation. Administration of the medicament manufactured by the use of the present invention in combination with MS-275 significantly increases MS-275 to cross the BBB into the brain tissue, and prominently promotes the accumulation of the medicament therein.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells renders the HSV particles, particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The disclosure relates to methods of controlling the state of a virus (lytic or lysogenic) in an individual, such as a method of reactivating a latent virus in an individual, comprising administering one or more agents that modulates the activity of signal transducer and activator of transcription 3 (STAT3) or any of p300, CBP or p300/CBP. Also contemplated are methods further comprising administering an HDAC modulating agent, such as an HDAC inhibiting agent or an HDAC activating agent.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells renders the HSV particles, particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The disclosure relates to methods of controlling the state of a virus (lytic or lysogenic) in an individual, such as a method of reactivating a latent virus in an individual, comprising administering one or more agents that modulates the activity of signal transducer and activator of transcription 3 (STAT3) or any of p300, CBP or p300/CBP. Also contemplated are methods further comprising administering an HDAC modulating agent, such as an HDAC inhibiting agent or an HDAC activating agent.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells render the HSV particles. particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells renders the HSV particles particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells render the HSV particles. particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The invention relates to engineered herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells renders the HSV particles particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.

Abstract: The invention relates to engineered Herpes simplex virus (HSV) particles that are targeted to one or more specific binding pair members, such as receptors. Also, recombinant vectors for producing such HSV particles are provided. By reducing the affinity of HSV for its natural receptor(s) and increasing the affinity for a selected receptor, the HSV particles of the invention are useful for targeting cells that express the selected receptor, which itself may be a product of genetic engineering. The ability to selectively target cells renders the HSV particles particularly useful in selectively diagnosing, treating, and imaging cells bearing the selected binding pair member, such as a receptor. The invention also provides for polynucleotide-based therapy to cells bearing the selected binding pair member such as a receptor.