Myxoma virus compositions and methods of use

Mutant Myxoma viruses are provided herein and methods of using these viruses to treat cancer or elicit an interferon response in a subject are also provided. The mutant Myxoma virus is modified to reduce or eliminate the activity or expression of Myxoma virus protein M62 as compared to a control virus. The mutant virus is capable of stimulating an interferon response in subjects after administration and can also lead to inhibition, reduction or elimination of the CD14+ tumor associated macrophage inhibition of CD4+ T cells in a subject having cancer and lead to a change in the tumor microenvironment to treat the cancer or work in combination with other cancer therapeutics to treat the cancer as described herein.

ABSTRACT

Mutant Myxoma viruses are provided herein and methods of using these viruses to treat cancer or elicit an interferon response in a subject are also provided. The mutant Myxoma virus is modified to reduce or eliminate the activity or expression of Myxoma virus protein M62 as compared to a control virus. The mutant virus is capable of stimulating an interferon response in subjects after administration and can also lead to inhibition, reduction or elimination of the CD14+ tumor associated macrophage inhibition of CD4+ T cells in a subject having cancer and lead to a change in the tumor microenvironment to treat the cancer or work in combination with other cancer therapeutics to treat the cancer as described herein.

CLAIMS

1. A method of treating cancer in a subject comprising administering a therapeutically effective amount of a mutant myxoma virus modified to eliminate or reduce activity or expression of Myxoma virus protein M62R as compared to a control myxoma virus to the subject.

PATENT INFORMATION


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