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Updated: Feb 20, 2026

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
Published on: May 25, 2017
Antibiotic efficacy-context matters
Jason H Yang1, Sarah C Bening1, James J Collins2
1Institute for Medical Engineering & Science, Department of Biological Engineering, Synthetic Biology Center, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, 415 Main St, Cambridge, MA 02142, USA.
Abstract:
Antibiotic lethality is a complex physiological process, sensitive to external cues. Recent advances using systems approaches have revealed how events downstream of primary target inhibition actively participate in antibiotic death processes. In particular, altered metabolism, translational stress and DNA damage each contribute to antibiotic-induced cell death. Moreover, environmental factors such as oxygen availability, extracellular metabolites, population heterogeneity and multidrug contexts alter antibiotic efficacy by impacting bacterial metabolism and stress responses. Here we review recent studies on antibiotic efficacy and highlight insights gained on the involvement of cellular respiration, redox stress and altered metabolism in antibiotic lethality. We discuss the complexity found in natural environments and highlight knowledge gaps in antibiotic lethality that may be addressed using systems approaches.
Insights
Antibiotic lethality involves complex cellular processes influenced by environmental factors. Systems approaches reveal how metabolism, translation, and DNA damage contribute to bacterial death, impacting antibiotic efficacy.
Area of Science:
- Microbiology
- Systems Biology
- Pharmacology
Background:
- Antibiotic lethality is a complex process influenced by bacterial physiology and environmental cues.
- Recent systems biology approaches reveal downstream events critical to antibiotic-induced cell death.
Purpose of the Study:
- To review recent studies on antibiotic efficacy and lethality.
- To highlight the role of cellular respiration, redox stress, and metabolism in antibiotic lethality.
- To identify knowledge gaps addressable by systems approaches.
Main Methods:
- Review of recent scientific literature.
- Analysis of systems approaches in understanding antibiotic lethality.
- Discussion of environmental factors influencing antibiotic efficacy.
Main Results:
- Altered metabolism, translational stress, and DNA damage are key contributors to antibiotic-induced cell death.
- Environmental factors like oxygen availability and population heterogeneity modulate antibiotic efficacy.
- Cellular respiration and redox stress are significantly involved in antibiotic lethality.
Conclusions:
- Antibiotic lethality is a multifaceted process influenced by internal cellular events and external environmental conditions.
- Systems approaches provide valuable insights into the complex mechanisms of antibiotic lethality.
- Further research using systems approaches is needed to address knowledge gaps in antibiotic lethality.
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