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Home / Health News / CRISPR/Cas9 screening reveals that Zika virus needs human proteins for survival

CRISPR/Cas9 screening reveals that Zika virus needs human proteins for survival

With the help of genetic screens using the groundbreaking genome editing technology CRISPR/Cas9, scientists have discovered human proteins that Zika virus needs for replication and survival.

By: Agencies   | | Published: June 22, 2016 3:24 pm
Tags: Mosquitoes  Virus  
Zika virus

With the help of genetic screens using the groundbreaking genome editing technology CRISPR/Cas9, scientists have discovered human proteins that Zika virus needs for replication and survival. These findings represent potential therapeutic targets that could help to treat and prevent Zika, dengue and other emerging viral infections. These genetic screens give us our first look at what these viruses need to survive, said lead researcher Abraham Brass, Assistant Professor at University of Massachusetts Medical School UMMS) in the US. In our lab, we adapted the technology and tools we’d established over the last four years working with other viruses to begin investigating the biology of Zika virus, Brass noted. Zika, first isolated from an infected macaque in Africa, suddenly emerged in Micronesia in 2007 and expanded its range to Southeast Asia. In May 2015, Zika was identified in Brazil. (Read: 8 essential tips to prevent Zika) Also Read - Chapare virus: Scientists confirm rare deadly virus in Bolivia can spread from person to person

Also Read - Another virus from China can spread disease in India: ICMR



With its rapid spread throughout Central and South America, Zika has emerged as a severe health threat that can hamper brain development in newborns, as well as muscle weaknesses in children and adults. Declared a public health emergency by the World Health Organization, there is no treatment for Zika. With just a few proteins of their own, Zika and dengue viruses must commandeer a host cell’s resources and proteins in order to grow and replicate. Some antiviral therapies used for HIV and hepatitis C virus work by disrupting the virus’ ability to use these resources. (Read: 6 symptoms of zika viral disease everyone should know!) Also Read - Delhi records 45 malaria and 35 dengue cases: Tips for prevention of vector-borne diseases

The first step in applying this anti-viral approach to Zika and dengue is to narrow down which of the more than 20,000 human proteins the virus needs to replicate. The new study published online in the journal Cell Reports is a big step in that direction. These viral dependencies on human proteins represent weaknesses that could potentially be used to prevent or stop infection, Brass said. Just like any enemy, the more we know about how these viruses function and replicate the better, Brass noted. Here s more on how the Zika virus hides in body parts, protected from the immune system

Source: IANS

Photo source: Getty images (Image for representational purpose only)

Published : June 22, 2016 3:24 pm
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