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5/10/17

 
 
 

Scientists report that they now know how to build a molecular Trojan horse that can penetrate gram-negative bacteria, solving a problem that for decades has stalled the development of effective new antibiotics against these increasingly drug-resistant microbes. The findings appear in the journal Nature.

Led by University of Illinois chemistry professor Paul Hergenrother, the scientists tested their approach by modifying a drug that kills only gram-positive bacteria, which lack the rugged outer cell membrane that characterizes gram-negative microbes and makes them so difficult to combat. The modifications converted the drug into a broad-spectrum antibiotic that could also kill gram-negatives, the team reports. 

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