Using generative AI, researchers design compounds that can kill drug-resistant bacteria

With help from artificial intelligence, MIT researchers have designed novel antibiotics that can combat two hard-to-treat infections: drug-resistant Neisseria gonorrhoeae and multi-drug-resistant Staphylococcus aureus (MRSA).

Using generative AI algorithms, the research team designed more than 36 million possible compounds and computationally screened them for antimicrobial properties. The top candidates they discovered are structurally distinct from any existing antibiotics, and they appear to work by novel mechanisms that disrupt bacterial cell membranes.

This approach allowed the researchers to generate and evaluate theoretical compounds that have never been seen before — a strategy that they now hope to apply to identify and design compounds with activity against other species of bacteria.

“We’re excited about the new possibilities that this project opens up for antibiotics development. Our work shows the power of AI from a drug design standpoint, and enables us to exploit much larger chemical spaces that were previously inaccessible,” says James Collins, the Termeer Professor of Medical Engineering and Science in MIT’s Institute for Medical Engineering and Science (IMES) and Department of Biological Engineering. Learn more

AI Impact Awards 2025: How 7 Health Care Winners Measure Impact

In 2020, researchers at the Collins Lab at MIT made a landmark discovery when they used AI to identify a new class of antibiotics. Phare Bio was born from that breakthrough, and has since leveraged AI to uncover two additional novel antibiotic classes.

The company's model prioritizes the superbugs identified as the most dangerous by the CDC and the WHO, and predicts drug efficacy, toxicity and pharmacokinetics with high accuracy. Phare Bio has also developed AIBiotics, a generative AI platform that designs new antibiotics.

Ultimately, the company aims to improve the efficiency of antibiotic research and development, according to Dr. Akhila Kosaraju, its president and CEO.

How does it measure that? Ultimately, by "taking better and fewer shots on goal," Kosaraju told Newsweek. It often costs between $1.3 and $1.5 billion to get a single drug over the finish line for FDA approval.

"Those numbers are so high [because they] encompass all of the failures along the way to get to that one exceptional drug," Kosaraju said. "If we can reduce the number of shots on goal substantially, we can half or quarter the cost and time to get these drugs into clinical trials, and then ultimately to be FDA-approved."

To see the full list of AI Impact winners, visit the official page for Newsweek's AI Impact Awards. Learn more

Boltz-2 Released to Democratize AI Molecular Modeling for Drug Discovery

Researchers from the Massachusetts Institute of Technology (MIT) Jameel Clinic for Machine Learning in Health have announced the open-source release of Boltz-2, which now predicts molecular binding affinity at newfound speed and accuracy to democratize commercial drug discovery. The model is available under the highly permissive MIT license, which allows commercial drug developers to use the model internally and apply their own proprietary data. Learn more

The Prototype: This AI Model Could Make It Faster To Find New Medicines

The 2024 Nobel Prize in Chemistry was awarded in part to Deepmind’s Demis Hassabis and John Jumper for the development of AlphaFold–an AI model that predicts the structure of proteins, the complex chemicals essential to making our bodies work. Since its inception, this model and others like it have been put to use in laboratories around the world, enabling new biological discoveries.

Now a team from MIT and pharmaceutical company Recursion, with support from Cancer Grand Challenges, have developed a tool that takes these principles further–and may help researchers find new medicines more quickly. Called Boltz-2, this open-source generative AI model can not only predict the structure of proteins, it can also predict its binding affinity–that is, how well a potential drug is able to interact with that protein. This is crucial in the early stages of developing a new medicine. Learn more
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