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DEPARTMENT FOR BUSINESS, ENERGY & INDUSTRIAL STRATEGY

Discovery and characterization of swine host factors required to support swine influenza virus replication.

IATI Identifier: GB-GOV-13-FUND--Newton-BB_R013071_1
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Description

Infection of pigs with influenza viruses is a problem both for animal and human health. Swine influenza virus infections cause production losses and can predispose to more serious complications leading to loss of stock. Moreover infections of pigs by avian influenza viruses can pre-empt the emergence of a novel influenza virus that infects humans. Indeed the last influenza pandemic in 2009 had its most recent origin in pigs. Pork is an important protein source for the developed and developing world. China is a major pig producer, where pigs are reared in large holdings under sometimes crowded conditions; a perfect breeding ground for the evolution and emergence of new strains of virus. The high population in China, its geography and its climate make it a hotspot for emergence of influenza viruses. One future solution to these threats is to employ recent developments in gene editing to make a pig that is resistant to infection with influenza viruses. This is not so far-fetched; indeed, pigs resistant to another pig virus called PRRS were recently generated. However, in order to apply the breakthrough to the influenza problem we need to identify which genes in the pigs should be altered to stop the virus from being able to infect, and then define precisely how to alter them so that there is as little disruption to the meat production and breeding capacity in the edited animals. We will identify the pig genes that are co-opted by swine influenza viruses to support their replication using a novel screening method, in pig cells with authentic swine influenza viruses typical of those circulating in China today. Then we will employ another novel screening method to work out the least changes we can make in the pig gene in order to stop the virus from infecting, because we reason this minimalistic and precise editing strategy will be the most acceptable to consumers and farmers alike.

Objectives

The Newton Fund builds research and innovation partnerships with developing countries across the world to promote the economic development and social welfare of the partner countries.


Location

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China
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Status Post-completion

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