Turnstone Limited Partnership

Wellstat Biologics Corporation

Ottawa Hospital Research Institute

University of Ottawa

Mcmaster University

Children's Hospital of Eastern Ontario Research Institute Inc.

Brian D Lichty

John Cameron Bell

David F Stojdl

Byram Bridle

Yonghong Wan

Jonathan Lorne Bramson

Harold L Atkins

Robert Michael Lorence

Jean-Simon Diallo

Michael Scot Roberts

David F Stodjl

Conrad J Heilman, Jr

Shane B Knowles

Ricardo M Marius

Earl G Brown

Nahum Sonenberg

Chantal Lemay

Jonathan Pol

Bryam Bridle

In one aspect, a method of treating cancer in a mammal is provided. The method comprises administering to the mammal an oncolytic vector that expresses a tumour antigen to which the mammal has a pre-existing immunity. In another aspect, a method of boosting immune response in a mammal having a pre-existing immunity to an antigen is provided comprising intravenous administration to the mammal of a B-cell infecting vector that expresses the antigen.

Vaccination methods

There is described a kit for use in inducing an immune response in a mammal, the kit includes: a first virus that expresses MAGEA3, Human Papilloma Virus E6/E7 fusion protein, human Six-Transmembrane Epithelial Antigen of the Prostate protein, or Cancer Testis Antigen 1, or a variant thereof as an antigenic protein and that is formulated to generate an immunity to the protein or variant thereof in the mammal. The kit also includes a Maraba MG1 virus encoding the same antigen, or a variant of the same antigen. The Maraba MG1 virus is formulated to induce the immune response in the mammal. The first virus is immunologically distinct from the Maraba MG1 virus.

Vaccine composition

A vaccination method is provided. The method comprises administering to a mammal a histone deacytelase inhibitor in conjunction with a vaccine that expresses an antigen to which the mammal has a pre-existing immunity.

Method of vaccination comprising a histone deacetylase inhibitor

In one aspect, a method of treating cancer in a mammal is provided. The method comprises administering to the mammal an oncolytic vector that expresses a tumor antigen to which the mammal has a pre-existing immunity. In another aspect, a method of boosting immune response in a mammal having a pre-existing immunity to an antigen is provided comprising intravenous administration to the mammal of a B-cell infecting vector that expresses the antigen.

The present invention provides mutant viruses with a decreased ability to block nuclear transport of mRNA or protein in an infected cell which are attenuated in vivo. The mutant viruses of the present invention may also be capable of triggering the anti-viral systems of normal host cells while remaining sensitive to the effects of these systems. The present invention further provides for the use of the mutant viruses in a range of applications including, but not limited to, as therapeutics for the treatment of cancer and infections, as vaccines and adjuvants, as viral vectors, and as oncolytic and cytolytic agents for the selective lysis of malignant or infected cells.

Mutant viruses and uses thereof

The present invention is directed to a method of reducing the viability of a tumor cell involving administering a virus that is not a common human pathogen to the tumor cell. Preferably, the virus exhibits differential susceptibility, in that normal cells are not affected by the virus. This differential susceptibility is more pronounced in the presence of interferon. The tumor cell is characterized by having low levels, or no, PKR activity, or as being PKR&#x2212;/&#x2212;, STAT1&#x2212;/&#x2212; or both PKR&#x2212;/&#x2212; and STAT1&#x2212;/&#x2212;. The virus is selected from the group consisting of Rhabdovirus and picornavirus, and preferably is vesicular stomatitis virus (VSV) or a derivative thereof.

Oncolytic virus

Mutant vesicular stomatitis viruses and uses thereof

The subject invention relates to viruses that are able to purge (reduce or eliminate) undesirable cells in a mixture of cells. Undesirable cells can include neoplastic cells, cells mediating graft-versus host diseases, and autoimmune cells. The subject invention also relates to the purging of undesirable cells from bone marrow or peripheral blood cell harvests in the treatment of mammals including cancer patients, transplant recipients, and patients with autoimmune disease.

Purging of cells using viruses

Growing community of inventors

Kemptville, Canada

Brian D Lichty