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MIT, BU team combats antibiotic resistance with engineered viruses
Date:3/2/2009

ne networks. Used in conjunction with traditional antibiotics, the viruses undermine bacterial defense systems and prevent resistance from developing.

The researchers tested their phages with three major classes of antibiotics (quinolones, beta-lactams and aminoglyclosides) and had good results with all three. In mice infected with bacteria, those treated with both engineered bacteriophage and antibiotics had an 80 percent survival rate, compared with 50 percent for mice treated with natural bacteriophages and antibiotics, 20 percent for mice treated only with antibiotics, and 10 percent for untreated mice.

"This work lays the groundwork for the development of a library of bacteriophages, each designed to attack different bacterial targets," said Lu.

In 2007, Lu and Collins demonstrated the successful creation of an engineered virus that could attack and destroy surface "biofilms" of harmful bacteria that can form on industrial and medical devices. Such viruses could be used in food processing plants, hospitals or other settings where dangerous bacteria can accumulate.


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Contact: Elizabeth Thomson
thomson@mit.edu
617-258-5402
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2

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