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Engineered E. Coli to Produce New Antibiotics That can Overcome Drug Resistance

by Dr. Trupti Shirole on June 1, 2015 at 10:04 AM
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Engineered E. Coli to Produce New Antibiotics That can Overcome Drug Resistance

Escherichia coli is commonly found in the lower intestine of healthy people and animals. Most types of E. coli are actually harmless. Researchers have successfully engineered E. coli to produce improved version of popular antibiotics, including three that show promise in fighting drug-resistant bacteria.

Researchers harnessed E. coli to create 40 new forms of the popular antibiotic erythromycin that have a slightly different structure from existing versions. Erythromycin is used for the treatment of a variety of illnesses, from pneumonia and whooping cough to skin and urinary tract infections.

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Lead researcher Blaine Pfeifer, associate professor at University at Buffalo School of Engineering and Applied Sciences in the US, said, "We are focused on trying to come up with new antibiotics that can overcome antibiotic resistance, and we see this as an important step forward. We have not only created new analogs of erythromycin, but also developed a platform for using E. coli to produce the drug. This opens the door for additional engineering possibilities in the future; it could lead to even more new forms of the drug."

Over the past 11 years, Pfeifer's research was focused on manipulating E. coli so that the organism produces all of the materials necessary for creating erythromycin. Pfeifer said, "The system we have created is surprisingly flexible, and that is one of the great things about it."

The study has been published in Science Advances.

Source: Medindia
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