Cell Wall

Modified peptides show promise against tuberculosis bacteria

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Antibiotic treatments are losing effectiveness against a range of common bacterial pathogens, including E. coli, K. pneumoniae, Salmonella and Acinetobacter, according to a warning issued by the World Health Organization last October. For the microbe that gives rise to tuberculosis, a team of researchers from Penn State and The University of Minnesota Medical School found that a potential solution may be chemically … Read more

Engineered Listeria boosts innate immunity against cancer

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After nearly 40 years of research on how Listeria bacteria manipulate our cells and battle our immune system to cause listeriosis, Daniel Portnoy and his colleagues have discovered a way to turn the bacteria into a potent booster of the immune system – and a potential weapon against cancer. Three years ago, Portnoy cofounded a … Read more