Flagellin treatment protects against chemicals, bacteria, viruses and radiation
This title for a 2008 paper in Journal of Immunology, from pathologist Andrew Gewirtz’s laboratory, is astounding. Flagellin can protect against all those things (in mice, of course)? What about bullets or heartbreak? What is flagellin?
Flagellin is a structural feature many bacteria have in common — courtesy of iGEM via Creative Commons
Flagellin is the main structural component of flagella, the miniature whips bacteria use to propel themselves.Â Several Emory scientists are investigating how flagellin could be used as a protective agent to strengthen the body’s innate defenses and also as a vaccine component.
Posted on November 19, 2010
by Quinn Eastman
The scientists in the lab of Richard Compans, PhD, professor of microbiology and immunology at Emory, are hard at work, imagining the unimaginable: A time when patients can self-administer flu vaccines. A time when vaccination does not require exposure to inactive viruses. A time when a universal vaccine could protect from all varieties of influenza: swine, avian, seasonal and strains still emerging.
Richard Compans, PhD (right), with colleague Mark Prausnitz, PhD, from Georgia Tech
But it’s not just hope that motivates them as they work. Emory’s scientists are fighting the clock against another possible future: a time of pandemic and uncontrollable virus mutation. The recent emergence of H1N1 and H5N1, known colloquially as swine flu and avian flu, have added an even greater sense of urgency to their task.
“The H5N1â€”the virus derived from avian speciesâ€”has a 60 percent mortality,” says Emory microbiologist Sang-Moo Kang, PhD. Yet that strain of influenza hasn’t resulted in many human deaths, because, so far, avian flu spreads only to humans who are in contact with infected birds.