New Dual-Action Antibiotic Could Transform Antimicrobial Resistance

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February 26, 2025

Doctors face an escalating battle as antibiotic-resistant bacteria claim about 35,000 lives each year in the U.S. alone. In a groundbreaking study published in the Journal of the American Chemical Society, researchers from the University of California, Irvine report on a new antibiotic candidate designed to bind and disable bacteria’s essential building blocks, potentially outsmarting the pathogens before they can adapt.

Developed as a powerful variation of vancomycin, a last-resort treatment, the novel agent “grabs onto” two distinct areas of the bacterial cell surface, according to Distinguished Professor James Nowick, who co-led the study. By seizing crucial molecules needed for cell wall formation, this drug hinders bacterial growth and may preempt further resistance.

“When it comes to antibiotics, bacteria can evolve defenses against them – they’re becoming stronger and always getting better at protecting themselves,” says lead author and Ph.D. candidate in chemistry, Sophia Padilla.

With the dual-binding strategy, the team hopes to curb the constant need for new antibiotic designs a costly and time consuming process. Their innovative method targets sites that bacteria are unlikely to modify, offering a promising avenue for long-term efficacy. Beyond treating life-threatening infections like Staphylococcus, these findings could revolutionize how physicians approach other drug-resistant pathogens.

Padilla and Nowick encourage fellow scientists to explore similar non-traditional targets for antibiotic development. If successful, this breakthrough could mark a turning point, empowering physicians with a sustained line of defense against evolving bacterial threats. UC Irvine’s discovery further underscores the institution’s commitment to pioneering research that addresses critical challenges in healthcare.