Disclosed herein are methods of treating cancer by administering a heterologous prime-boost regimen of oncolytic microorganisms that enhances or elicits an immune response to a tumor protein that is not coded for by the oncolytic microorganisms.

The present invention relates to the field of oncolytic viruses and in particular to a recombinant rhabdovirus, such as vesicular stomatitis virus encoding in its genome for a CD80 extracellular domain Fc-fusion protein. The invention is further directed to the use of the recombinant virus in the treatment of cancer, and also to methods for producing such viruses.

This document provides methods and materials related to treating cancer. For example, methods and materials for using nucleic acid libraries to treat cancer are provided.

The present disclosure provides a miRNA hairpin that, when processed by a virus-infected cell, increases the therapeutic effectiveness of the virus. The present disclosure also provides a virus encoding such a miRNA hairpin. The present disclosure also provides pre-miRNAs that, when processed by a virus-infected cell, increase extracellular vesicle secretion of the encoded miRNA hairpin by the virus-infected cell.

The present disclosure relates to a sequential boost oncolytic viral immunotherapy and compositions for use in the same. More particularly, the disclosure relates to oncolytic viruses that significantly increase antigen-specific T cell-mediated immune responses when combined in a sequential heterologous boost treatment regimen.

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.

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.