Provided is a modified matrix protein of a vesicular stomatitis virus, wherein the protein has amino acid substitutions at position 21, position 51, position 111 and position 221. Further provided are an attenuated strain of the vesicular stomatitis virus producing the modified matrix protein, a composition containing the attenuated strain, and uses thereof in preparing a drug for killing abnormally proliferating cells, inducing and promoting antitumor immune response, or eliminating immunosuppression in a microenvironment of a tumor tissue.

This document relates to methods and materials for treating cancer. For example, engineered viruses (e.g., oncolytic viruses) encoding one or more inhibitors of apolipoprotein B editing complex 3B (APOBEC3B) polypeptide activity or expression and methods for using such viruses as an oncolytic agent (e.g., to treat cancer) are provided. For example, one or more engineered oncolytic viruses encoding one or more inhibitors of APOBEC3B polypeptide activity or expression can be administered to a mammal having cancer to treat that mammal.

The present application relates to an attenuated oncolytic virus strain, an oncolytic virus vaccine and a drug for treating tumors by combining the oncolytic virus vaccine with immune cells. The present application provides a new attenuated oncolytic virus strain by a site-directed mutation of a matrix protein M of a VSV wild-type virus. On the basis of the attenuated oncolytic virus strain, the present application further provides a vaccine that can be used in tumor treatment. On the basis of the vaccine, the present application further provide a drug that can effectively treat multiple kinds of tumors by combining the vaccine with immune cells.

This document provides methods and materials related to vesicular stomatitis viruses. For example, replication-competent vesicular stomatitis viruses, nucleic acid molecules encoding replication-competent vesicular stomatitis viruses, methods for making replication-competent vesicular stomatitis viruses, and methods for using replication-competent vesicular stomatitis viruses to treat cancer or infectious diseases are provided.

This document provides methods and materials related to vesicular stomatitis viruses. For example, replication-competent vesicular stomatitis viruses, nucleic acid molecules encoding replication-competent vesicular stomatitis viruses, methods for making replication-competent vesicular stomatitis viruses, and methods for using replication-competent vesicular stomatitis viruses to treat cancer or infectious diseases are provided.

The present invention relates to VSV chimeric vectors, characterized in that the vectors comprise a gene coding for a glycoprotein GP of the Dandenong virus (DANDV) or Mopeia vims (MOPV) and lack a functional gene coding for envelope protein G of the VSV. The invention also provides VSV chimeric vector systems. In addition, the invention relates to uses of the VSV chimeric vectors and systems of the invention, including the use in medicine such as in the treatment of solid tumors.

The present invention relates to VSV chimeric vectors, characterized in that the vectors comprise a gene coding for a glycoprotein GP of the Dandenong virus (DANDV) or Mopeia vims (MOPV) and lack a functional gene coding for envelope protein G of the VSV. The invention also provides VSV chimeric vector systems. In addition, the invention relates to uses of the VSV chimeric vectors and systems of the invention, including the use in medicine such as in the treatment of solid tumors.

There is described herein a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells while having tropism against immortalized cells. The non-replicating Rhabdovirus-derived particle may have cytolytic tropism against immortalized cells. There is also described a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells but has innate and/or adaptive immune-stimulating properties.

There is described herein a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells while having tropism against immortalized cells. The non-replicating Rhabdovirus-derived particle may have cytolytic tropism against immortalized cells. There is also described a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells but has innate and/or adaptive immune-stimulating properties.

There is described herein a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells while having tropism against immortalized cells. The non-replicating Rhabdovirus-derived particle may have cytolytic tropism against immortalized cells. There is also described a non-replicating Rhabdovirus-derived particle that lacks the ability to spread between cells but has innate and/or adaptive immune-stimulating properties.