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Phages & the Superbugs War
A specialist team of scientists from the University of Leicester has isolated viruses that eat bacteria - called phages - to specifically target the highly infectious hospital superbug Clostridium difficile (C. diff).
The future impact of antibiotics is dwindling at a pace that no one anticipated, with more and more bacteria out-smarting and 'out-evolving' these miracle drugs. This has re-energized the search for new treatments.
"One alternative to antibiotics is bacteriophages, known as phages, which unlike antibiotics, are specific in what they kill and will generally only infect one particular species, or even strain of bacteria, referred to as the 'host'. Following attachment to their hosts, they inject their DNA into the bacterium, which then replicates many times over, ultimately causing the bacterial cell to burst open. The phages released from the dead bacterium can then infect other host cells."
Dr. Clokie and her team have achieved the remarkable feat of isolating and characterizing the largest known set of distinct C. diff phages that infect clinically relevant strains of C. diff. Of these, a specific mixture of phages have been proved, through extensive laboratory testing, to be effective against 90% of the most clinically relevant C. diff strains currently seen in the U.K.
As a testament to their therapeutic potential, these phages, that are the subject of a patent application, have been licensed by AmpliPhi Biosciences Corporation, a US-based biopharmaceutical company and pioneers in developing phage-based therapeutics. AmpliPhi have already made progress in developing phages targeted against Pseudomonas aeruginosa, a pathogen that causes acute, life-threatening lung infections in cystic fibrosis patients. They were also the first biopharmaceutical company to demonstrate the effectiveness of Pseudomonas phages in controlled and regulated human clinical trials.
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2 | 64 | ampliphi biosciences | pepiat16 | pepiat16 | 22.08.15 09:16 | |
TGEN Kurzfristzock | Clubfan | 20.03.06 14:41 | ||||
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