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Syracuse University biologist discovers key regulators for biofilm development
Date:6/24/2011

They can be found everywhereorganized communities of bacteria sticking to surfaces both inside and outside the body. These biofilms are responsible for some of the most virulent, antibiotic-resistant infections in humans; however, scientific understanding of how these communities develop is lacking.

A recent study led by a Syracuse University biologist sheds new light on the process. The scientists discovered that a complex cascade of enhancer binding proteins (EBPs) is responsible for turning on genes that initiate the formation of a biofilm. The study was published June 13 in the Proceedings of the National Academy of Sciences, one of the world's most-cited multidisciplinary scientific serials. The National Science Foundation is funding the research (link to article: http://www.pnas.org/content/early/2011/06/07/1105876108.abstract?sid=dbfeeb94-6f1e-44c8-b610-d39a98acbd88).

"We've discovered a complex regulatory cascade of EBPs that is designed to be highly responsive to environmental signals," says Anthony Garza, associate professor of biology in SU's College of Arts and Sciences and corresponding author for the study. "The regulatory circuit we identified is very different from that which has previously been seen." Garza's research team includes scientists from the University of Miami School of Medicine, the University of Wisconsin-Madison, and Stanford University School of Medicine.

Garza's team discovered that the regulatory network that signals biofilm development is quite complex and akin to that which is normally found in higher organisms. "Bacterial cells that form biofilms require cooperative behavior similar to cells in more complex organisms," he says. "We knew EBPs were important in initiating biofilm development, and that there was a connection between EBPs and specific biofilm genes. But we d
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Contact: Judy Holmes
jlholmes@syr.edu
315-443-8085
Syracuse University
Source:Eurekalert

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