The present invention provides safe, stable, efficacious, and cost-effective vaccines based on viral expression vectors that include a parainfluenza virus 5 (PIV5) genome including a heterologous nucleotide sequence expressing a heterologous polypeptide.

This document relates to methods and materials for virotherapy. For example, this document provides methods and materials for treating cancer using a recombinant mumps virus as an oncolytic agent.

This document relates to methods and materials for virotherapy. For example, this document provides methods and materials for treating cancer using a recombinant mumps virus as an oncolytic agent.

The present invention includes the Paramyxovirus Parainfluenza Virus 5 (PIV5) as an oncolytic agent for treating various cancers, including, but not limited to breast cancer, lung cancer and melanoma. PIV5 oncolytic agents include both wild type PIV5 and various recombinant PIV5 constructs. Recombinant PIV5 constructs may include PIV5 lacking the conserved C-terminus of the V protein (PIV5V?C), PIV5 with mutations in the N-terminus of the V/P protein (PIV5CPI?), and PIV5 expressing MDA-7/IL-24 (rPIV5-MDA7), rPIV5-V/P-CPI?, rPIV5-CPI+, rPIV5-Rev, rPIV5-RL, rPIV5-P-S157A, rPIV5-P-S308A, rPIV5-L-A1981D, rPIV5-F-S443P, rPIV5-MDA7, rPIV5?SH-CPI?, or rPIV5?SH-Rev. Also included are methods of making and using such oncolytic agents and compositions including such oncolytic agents.

The present invention provides the complete genomic sequence of the epidemic mumps virus (MuV) strain MuV.sup.Iowa/US/06. Further, a reverse genetics system was constructed and used to rescue recombinant viral constructs that are attenuated compared to rMuV.sup.Iowa/US/06 and JL vaccine viruses. Such constructs include viral constructs lacking the open reading frame (ORF) of the SH gene (rMuVSH) and/or incapable of expressing the V protein (rMuVV).

The present invention includes the Paramyxovirus Parainfluenza Virus 5 (PIV5) as an oncolytic agent for treating various cancers, including, but not limited to breast cancer, lung cancer and melanoma. PIV5 oncolytic agents include both wild type PIV5 and various recombinant PIV5 constructs. Recombinant PIV5 constructs may include PIV5 lacking the conserved C-terminus of the V protein (PIV5V?C), PIV5 with mutations in the N-terminus of the V/P protein (PIV5CPI?), and PIV5 expressing MDA-7/IL-24 (rPIV5-MDA7), rPIV5-V/P-CPI?, rPIV5-CPI+, rPIV5-Rev, rPIV5-RL, rPIV5-P-S157A, rPIV5-P-S308A, rPIV5-L-A1981D, rPIV5-F-5443P, rPIV5-MDA7, rPIV5?SH-CPI?, or rPIV5?SH-Rev. Also included are methods of making and using such oncolytic agents and compositions including such oncolytic agents.

The present invention relates to an attenuated mumps virus and a live vaccine comprising the same. The attenuated mumps virus vaccine of the present invention can be effectively used for additional vaccination to control the occurrence of breakthrough infection and the epidemic of mumps due to differences in genotypes of existing vaccine strains and epidemic strains and decreased immunity.

The present disclosure provides a method of producing a negative-strand RNA virus vector. The present disclosure specifically provides a method of producing a negative-strand RNA virus vector in the presence of a PKR inhibitory factor.

This document relates to methods and materials for virotherapy. For example, this document provides methods and materials for treating cancer using a recombinant mumps virus as an oncolytic agent.

The present invention includes the Paramyxovirus Parainfluenza Virus 5 (PIV5) as an oncolytic agent for treating various cancers, including, but not limited to breast cancer, lung cancer and melanoma. PIV5 oncolytic agents include both wild type PIV5 and various recombinant PIV5 constructs. Recombinant PIV5 constructs may include PIV5 lacking the conserved C-terminus of the V protein (PIV5VC), PIV5 with mutations in the N-terminus of the V/P protein (PIV5CPI), and PIV5 expressing MDA-7/IL-24 (rPIV5-MDA7), rPIV5-V/P-CPI, rPIV5-CPI+, rPIV-Rev, rPIV5-RL, rPIV5-P-S157A, rPIV5-P-S308A, rPIV5-L-A1981D, rPIV5-F-5443P, rPIV5-MDA7, rPIV5SH-CPI, or rPIV5SH-Rev. Also included are methods of making and using such oncolytic agents and compositions including such oncolytic agents.