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Virus strains

A virus strain and tumor cell technology, applied in the direction of viruses/bacteriophages, genetic material components, biochemical equipment and methods, etc., can solve the problems of reducing the efficiency of lytic replication or infecting human tumor cells

Inactive Publication Date: 2006-11-22
BIOVEX LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since oncolytic treatment of cancer requires efficient replication in normally relatively slow-growing human tumor cells, it is expected that adaptation of laboratory virus strains to growth in specific cultured cells may reduce lytic replication in human tumor cells where optimally possible Efficiency or efficiency of infecting human tumor cells

Method used

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specific Embodiment approach

[0098] Oncolytic virus of the present invention

[0099] In one embodiment, the virus of the invention is a modified non-laboratory oncolytic virus. These viruses can be used in oncolytic therapy for cancer. Such viruses infect and replicate within tumor cells and subsequently kill the tumor cells. Thus, such viruses are replication-competent viruses. Preferably they are selectively replicable in tumor cells. This means that they replicate in tumor cells but not in non-tumor cells, or that they replicate more efficiently in tumor cells than in non-tumor cells. The ability to selectively replicate can be determined by the assays described herein for assaying replicative ability and tumor cell killing ability and, if desired, can be analyzed by the statistical techniques enumerated herein.

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Abstract

The present invention provides a herpes virus with improved oncolytic properties which comprises a gene encoding an immunomodulatory cytokine and which lacks a functional ICP34.5 gene and a functional ICP47 encoding gene.

Description

[0001] This application is a divisional application of the Chinese patent application (National Application No. 01806750.6, International Application No. PCT / GB01 / 00229) with the invention and creation name "Virus Strain" filed on January 22, 2001. technical field [0002] The present invention relates to non-laboratory strains of, for example, herpesviruses, such as HSV, which have improved oncolytic and / or gene delivery capabilities compared to laboratory strains. Background technique [0003] Viruses have been proposed or demonstrated, in many cases, to be useful in a wide variety of applications in the fields of bioengineering and medicine. This is due to the unique ability of viruses to enter cells with high efficiency. In such applications this is coupled with viral gene expression and replication and / or expression of inserted heterologous genes. Thus, viruses can either deliver genes (or viral genes or other genes) that can be used for example in gene therapy or vacc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N15/869A61KA61K48/00C12NC12N7/01C12QC12Q1/02
Inventor R·S·科芬
Owner BIOVEX LTD
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