Sumary of ‘Last resort’ antibiotic pops bacteria like balloons:
- Coli, which causes potentially lethal infections of the bloodstream, and Pseudomonas aeruginosa and Acinetobacter baumannii, which frequently infect the lungs of people receiving mechanical ventilation in intensive care units..
- However, whilst it was known that colistin damaged the outer membrane by targeting a chemical called lipopolysaccharide (LPS), it was unclear how the inner membrane was pierced..
- However, by changing the amount of LPS in the inner membrane in the laboratory, and also by chemically modifying it, we were able to show that colistin really does puncture both bacterial skins in the same way — and that this kills the superbug..
- They focussed on a bacterium called Pseudomonas aeruginosa, which also causes serious lung infections in people with cystic fibrosis…