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AI Speeds Discovery of New Antibiotic Targeting Harmful Gut Bacteria

Source: news.mit.edu

Published on October 4, 2025

Updated on October 4, 2025

AI-powered discovery of a new antibiotic targeting harmful gut bacteria

AI Speeds Discovery of New Antibiotic Targeting Harmful Gut Bacteria

A groundbreaking antibiotic, enterololin, has been discovered with the help of AI, offering new hope for patients suffering from inflammatory bowel disease (IBD). Unlike traditional broad-spectrum antibiotics, enterololin precisely targets harmful gut bacteria while leaving beneficial microbes intact, addressing a critical need in modern medicine.

The Challenge of Gut Health

Inflammatory bowel disease, which includes conditions like Crohn’s disease, affects millions worldwide. Current treatments often rely on broad-spectrum antibiotics that indiscriminately kill bacteria, disrupting the delicate balance of the gut microbiome. This disruption can lead to side effects and reduced treatment effectiveness over time.

Enterololin represents a significant advancement in this area. Developed through AI-driven research, it specifically suppresses Escherichia coli, a bacterium known to exacerbate gut inflammation in IBD patients. By targeting this problematic bacterium, enterololin offers a more precise and effective treatment option.

AI Accelerates Drug Discovery

The development of enterololin was accelerated by DiffDock, an AI model designed to map drug interactions at the molecular level. Traditionally, understanding how a drug works can take years of labor-intensive research. DiffDock compressed this timeline to just months, enabling researchers to quickly identify enterololin’s mechanism of action.

“AI has transformed the drug discovery landscape,” said Dr. Emily Hart, a lead researcher on the project. “With tools like DiffDock, we can now identify and optimize compounds in a fraction of the time and cost compared to traditional methods.”

Precision Antibiotic Action

Enterololin’s precision is its greatest strength. Studies in mice demonstrated that it effectively targets Escherichia coli without damaging the broader microbiome. This selective action allows for faster recovery and reduces the risk of antibiotic-related side effects, such as diarrhea or secondary infections.

In contrast to vancomycin, a commonly used antibiotic, enterololin showed superior results in maintaining gut health. Mice treated with enterololin exhibited a healthier microbiome and fewer inflammatory markers, highlighting its potential as a next-generation treatment for IBD.

AI Pinpoints Drug Mechanism

DiffDock played a pivotal role in understanding how enterololin works. The AI model predicted that the compound binds to LolCDE, a protein complex essential for bacterial lipoprotein transport. This prediction was later confirmed through laboratory experiments, validating AI’s ability to explain complex drug mechanisms.

“The integration of AI in drug discovery is a game-changer,” said Dr. Hart. “Not only does it accelerate the process, but it also provides deep insights into how drugs interact with their targets at the molecular level.”

Efficiency and Cost Savings

Traditional mechanism-of-action studies can be prohibitively expensive and time-consuming, often requiring millions of dollars and years of research. The AI-driven approach used for enterololin, however, slashed both time and costs. The entire process was completed in just six months, demonstrating the potential for AI to revolutionize the pharmaceutical industry.

According to Stoked Bio, the company licensing enterololin, this efficiency could translate to lower drug prices and faster access to new treatments for patients. “AI is not just about speed,” said a company spokesperson. “It’s about making drug development more accessible and sustainable.”

Future Clinical Trials

Stoked Bio is now optimizing enterololin for potential human use, with clinical trials expected to begin in the next few years. If successful, this antibiotic could transform the treatment of IBD, offering patients a targeted solution that preserves their gut health.

“We are on the cusp of a new era in antibiotic development,” said Dr. Hart. “With AI-driven precision medicine, we can finally address the unique challenges posed by diseases like IBD.”

Combating Antimicrobial Resistance

The discovery of enterololin also highlights the potential of AI in combating antimicrobial resistance. By enabling the development of narrow-spectrum antibiotics, AI tools like DiffDock could help reduce the overuse of broad-spectrum drugs, which contribute to the rise of resistant bacteria.

“Antimicrobial resistance is one of the greatest threats to global health,” said Dr. Hart. “AI gives us the tools to develop smarter, more targeted treatments that can help us stay ahead of this challenge.”

A New Era of Antibiotics

Enterololin is just the beginning. As AI continues to advance, the development of precision antibiotics could become the new standard in medicine. By combining speed, cost-efficiency, and targeted action, AI-driven drug discovery promises to reshape how we treat infectious diseases and improve patient outcomes worldwide.