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Home Pathogens

Researchers Identify Chemical Compounds that Halt Virus Replication

by Global Biodefense Staff
June 24, 2013

Virus InfestationBoston University School of Medicine (BUSM) researchers have identified a new chemical class of compounds that have the potential to block genetically diverse viruses from replicating. The findings, published this spring in Chemistry & Biology, could allow for the development of broad-spectrum antiviral medications to treat a number of viruses, including the highly pathogenic Ebola and Marburg viruses. 

A group of viruses known as nonsegmented, negative sense (NNS) ribonucleic acid (RNA) viruses cause common illnesses such as rabies, mumps and measles. These pathogens also cause more serious deadly diseases, including Ebola, Hendra and Nipah. Currently, there are no approved and effective treatments against these viruses, which, according to data from the Centers for Disease Control and Prevention, are associated with mortality rates up to 90 percent following infection. 

“Identifying broad-spectrum antivirals is an important step in developing successful therapies against these and other viruses,” said Filone. The basic idea of a broad spectrum antiviral is similar to that of broad-spectrum antibacterials in that they would allow one drug to serve as a common treatment for many different viral illnesses.

In this study, researchers identified a new chemical class of compounds that effectively blocked genetically diverse viruses from replicating by limiting RNA production by the virus in cell culture. These indoline alkaloid-type compounds inhibited a number of viruses from replicating, including Ebola.

“Because the production of viral RNA is the first step in successful replication, it appears that we have uncovered an Achilles heel to halt virus replication,” said Filone. “These compounds represent probes of a central virus function and a potential drug target for the development of effective broad-spectrum antivirals for a range of human pathogens.”

Claire Marie Filone, PhD, postdoctoral researcher at BUSM and the United States Army Medical Research Institute of Infectious Diseases (USAMRIID), is the paper’s first author and led this study under the leadership of John Connor, PhD, associate professor of microbiology at BUSM. John Snyder, PhD, professor of chemistry at Boston University (BU) and researchers from the Center for Chemical Methodology and Library Development at BU (CMLD-BU) were collaborators on this study.

The research was funded in part by the National Institutes of Health’s National Institute of Allergy and Infectious Diseases (NIAID).

Source: Boston University Medical Center

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Tags: AntiviralsEbolaMarburgUSAMRIID

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