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Related Experiment Video

Updated: Jul 23, 2025

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations

Published on: July 24, 2021

Multi-arming ourselves against drug-resistant bacteria.

Jessia Raherisoanjato¹, Matthew T Henke¹

¹Department of Pharmaceutical Sciences and Center for Biomolecular Sciences, College of Pharmacy University of Illinois Chicago, Chicago, IL 60607, USA.

Cell Host & Microbe

|July 13, 2023

Summary

New antibiotic scaffolds offer hope against resistant bacteria. Researchers developed a novel "multi-armed" compound effective against methicillin-resistant Staphylococcus aureus infections in mice.

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Area of Science:

Microbiology
Infectious Diseases
Drug Discovery

Background:

Antibiotic resistance poses a significant global health threat, necessitating the development of novel antimicrobial agents.
Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of difficult-to-treat infections.

Purpose of the Study:

To introduce a new class of antibiotic compounds with a unique "multi-armed" scaffold.
To evaluate the efficacy of these novel compounds against MRSA infections.

Main Methods:

Synthesis and characterization of novel "multi-armed" antibiotic scaffolds.
In vivo testing of the compounds in a mouse model of MRSA infection.

Main Results:

The novel antibiotic scaffold demonstrated significant efficacy in treating MRSA infections in mice.
The compounds exhibit a unique chemical structure distinct from existing antibiotics.

Conclusions:

This new class of antibiotics shows promise for combating challenging bacterial infections.
The unique structure suggests a potentially novel mechanism of action, possibly targeting an "irresistible" bacterial vulnerability.