Shu Lam is a Ph.D. student at the University of Melbourne in Australia. She and a team of researchers published a paper in Nature Microbiology detailing a groundbreaking development. It showed that a particular star-shaped protein structure the researchers call structurally nanoengineered antimicrobial peptide polymers (SNAPPs) successfully killed six strains of drug-resistant bacteria in the lab. (You're probably familiar with the word "polymer" as it refers to plastic, but a polymer can be made of anything — the word just refers to the way the molecules are structured).
But antibiotics they ain't. While antibiotics create a sort of toxic soup that won't let the bacteria survive (but can take out healthy cells in the process), the polymers work by attacking the infectious cells directly. They do this in a number of ways. "One method is by physically disrupting or breaking apart the cell wall of the bacteria," Lam explained to The Telegraph's Nicola Smith. "This creates a lot of stress on the bacteria and causes it to start killing itself."
And because the polymers are so large, they can't enter healthy cells.
The team even tested the polymers in mice to fight the dreaded Acinetobacter baumannii, a type of superbug bacteria. The bacteria was successfully wiped out, and importantly, it didn't develop any resistance to the polymer. Game. Set. Match. Maybe. We hope.
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