The present disclosure provides dual viruses capable of producing a primary virus and a secondary virus, and dual oncolytic viruses capable of producing a primary oncolytic virus and a secondary oncolytic virus.

The present disclosure relates to polynucleotides comprising a nucleic acid sequence encoding a replication competent viral genome, wherein the polynucleotide is capable of producing a replication competent virus when introduced into a cell by a non-viral delivery vehicle. The present disclosure further relates to the encapsulation of the polynucleotides and the use of the polynucleotides and/or particles for the treatment and prevention of cancer.

Provided herein are compositions and methods of using Seneca Valley Virus (SW), or a derivative thereof, combined with an IFN-I inhibitor for treating a cancer in a subject. The disclosed methods particularly rely upon the expression level of an ANTXR1 and the expression level of IFN-I in the cancer from the subject. Also provided herein are methods for predicting the efficacy of an SW treatment and a kit for determining the same.

The present disclosure relates to recombinant RNA molecules encoding an oncolytic virus. The present disclosure further relates to the encapsulation of the recombinant RNA molecules and the use of the recombinant RNA molecules and/or particles for the treatment and prevention of cancer.

Provided herein are compositions and methods of using Seneca Valley Virus (SVV) or a derivative thereof and an interferon type I (IFN-I) inhibiting agent comprising an mTOR inhibitor for treating a cancer in a subject. The disclosed methods particularly rely upon the expression level of an ANTXR1 and the expression level of IFN-I in the cancer from the subject. Also provided herein are methods for predicting the efficacy of an SVV treatment comprising IFN-I inhibiting agent.

The present disclosure relates to polynucleotides comprising a nucleic acid sequence encoding a replication competent viral genome, wherein the polynucleotide is capable of producing a replication competent virus when introduced into a cell by a non-viral delivery vehicle. The present disclosure further relates to the encapsulation of the polynucleotides and the use of the polynucleotides and/or particles for the treatment and prevention of cancer.

An oncolytic poxvirus encoding a truncated human CD19 is used in conjunction with a chimeric antigen receptor to treat solid tumors.

Provided herein are compositions and methods of using Seneca Valley Vims (SVV) or SVV derivative in combination with a checkpoint inhibitor for treating a cancer that is refractive to treatment by the checkpoint inhibitor. Also provided herein are kits containing a Seneca Valley Vims (SVV) or SVV derivative and a checkpoint inhibitor for treating a cancer that is refractive to treatment by the checkpoint inhibitor.

Provided herein in are armed Seneca Valley Viruses which have been altered to carry a therapeutic payload, i.e. to encode an agent for treating cancer. These armed Seneca Valley Viruses are oncolytic and express a cancer treating agent. Also provided herein are compositions and methods of using an armed Seneca Valley Virus to treat cancer in a subject.

A modified coxsackievirus showing improved safety and/or aggressiveness to be used for oncolytic virotherapy is provided. A modified coxsackievirus showing tissue-specific suppression of proliferation and comprising a mutated genome consisting of the genome of coxsackievirus B3 wild-type (CVB3-WT) inserted with at least one polynucleotide consisting of a target sequence of tissue-specific microRNA (miRNA) is provided. The mutated genome is preferably further inserted with the region encoding GM-CSF in an expressible form.