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GUMC researchers hone in on new strategy to treat common infection
Date:10/27/2008

Washington, DC -- Researchers at Georgetown University Medical Center (GUMC) have successfully tested a genetic strategy designed to improve treatment of human infections caused by the yeast Candida albicans, ranging from diaper rash, vaginitis, oral infections (or thrush which is common in HIV/AIDS patients), as well as invasive, blood-borne and life-threatening diseases.

Their findings confirm that inhibiting a key protein could provide a new drug target against the yeast, which inhabits the mucous membranes of most humans. The research was presented today at the 48th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy/46th Annual Meeting of the Infectious Diseases Society of America (ICAAC/IDSA) in Washington, DC.

"This is a genetically intelligent approach to target identification and drug design," says the study's lead author, Richard Calderone, PhD, professor and chair of the department of microbiology and immunology and co-director of the PhD program in the global infectious disease program at GUMC.

"Candida infections are often treatable, however, in patients that are immunocompromised following cancer chemotherapy, bone marrow transplantation, or surgery, diagnosis is often delayed, postponing therapy," he says. "Also when drug-resistant yeast pathogens cause the infection, clinical management of the patient becomes a problem."

Candida invasive, blood-borne infections are the fourth most common hospital-acquired infection in the United States, costing the healthcare system about $1.8 billion each year, Calderone says.

"More drug resistance is being seen clinically, so there is significant room for improvement in the therapies used today," he says

This study continues research in which Calderone and his colleagues identified a protein, the product of the Ssk1 gene that Candida needs to infect its host. To date, this protein has not been found in hum
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Contact: Karen Mallet
mallet.karen@gmail.com
414-312-7085
Georgetown University Medical Center
Source:Eurekalert

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