How smallpox kills
December 23rd, 2009 - 1:51 pm ICT by ANI ( Leave a comment )Washington, Dec 23 (ANI): In a new study, scientists have explained how variola, monkeypox, and related viruses disable immune systems to yield devastating consequences.
Working in a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, GA, the team of researchers solved a fundamental mystery about smallpox that has puzzled scientists long after the natural disease was eradicated by vaccination.
In the new research report appearing online in The FASEB Journal, researchers describe how the virus cripples immune systems by attacking molecules made by our bodies to block viral replication.
“These studies demonstrate the production of an interferon binding protein by variola virus and monkeypox virus, and point at this viral anti-interferon protein as a target to develop new therapeutics and protect people from smallpox and related viruses,” said Antonio Alcami, Ph.D., a collaborator on the study from Madrid, Spain. “A better understanding of how variola virus, one of the most virulent viruses known to humans, evades host defenses will help up to understand the molecular mechanisms that cause disease in other viral infections.”
In a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, scientists produced the recombinant proteins from the variola virus and a similar virus that affects monkeys, causing monkeypox. The researchers then showed that cells infected with variola and monkeypox produced a protein that blocks a wide range of human interferons, which are molecules produced by our immune systems meant to stop viral replication. (ANI)
- How interferon-induced genes launch antiviral defenses - Apr 11, 2011
- FACTSHEETS - Smallpox: in detail - Mar 25, 2010
- Compound that halts poxvirus replication - Jan 04, 2012
- Early warning alerts our cells against invading bugs - Oct 16, 2011
- 'Small pox virus may become poor man's atom bomb' - May 28, 2011
- Mechanism T cells use to block HIV discovered - May 18, 2010
- Vaccine-delivering nanoparticles may help fight HIV, malaria - Feb 23, 2011
- End of smallpox vaccination 'led to the explosive spread of HIV' - May 18, 2010
- Allergic asthmatics more vulnerable during flu season - May 29, 2010
- Gold nanorods may help attack H1N1, other flu viruses effectively - May 25, 2010
- Non-stick protein coating in semen cuts HIV infection - Sep 24, 2010
- Study associates herpes to Alzheimer's disease - Apr 05, 2011
- New antibodies to combat Alzheimer's - Dec 12, 2011
- How reovirus kills cancer cells - Feb 21, 2011
- How specific viruses can kill cancer cells - Dec 02, 2010
Tags: binding protein, centers for disease control, centers for disease control and prevention, cripples, disease control and prevention, faseb journal, fundamental mystery, host defenses, immune systems, interferon, interferons, madrid spain, molecular mechanisms, monkeypox virus, recombinant proteins, target, variola virus, viral infections, viral replication, virulent viruses