Researchers have identified a new class of antibiotics that works by blocking the transportation of lipopolysaccharide (LPS) to the outer membrane of the gram-negative bacterium Acinetobacter baumannii. The most advanced member of the class, zosurabalpin (RG-6006, Roche AG), was effective against multiple A. baumannii strains, including carbapenem-resistant and multidrug-resistant strains.

Researchers have used explainable artificial intelligence (explainable AI) to find structurally new antibiotics with minimal toxicity. They reported their findings online in Nature on Dec. 20, 2023. In animal testing, compounds identified via the method showed that they had activity against drug-resistant gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA), one of the most serious bacterial public health threats.

Mission Bio Inc. released its Tapestri single-cell minimal residual disease (MRD) assay for acute myeloid leukemia (AML) on September 26, with the goal of enabling greater personalization of care for patients with blood cancers. The test can provide insights into the progression of AML and help identify targets for treatment in addition to identifying patients truly experiencing relapse as distinct from having pre-leukemic or precursor clones.