Using microarray gene signatures to elucidate mechanisms of antibiotic action and resistance

Michelle D. Brazas, Robert E.W. Hancock

Research output: Contribution to journalReview articlepeer-review

91 Citations (Scopus)


Microarray analyses reveal global changes in gene expression in response to environmental changes and, thus, are well suited to providing a detailed picture of bacterial responses to antibiotic treatment. These responses are represented by patterns of gene expression, termed expression signatures, which provide insight into the mechanism of action of antibiotics as well as the general physiological responses of bacteria to antibiotic-related stresses. The complexity of such signatures is challenging the notion that antibiotics act on single targets and this is consistent with the concept that there are multiple targets coupled with common stress responses. A more detailed knowledge of how known antibiotics act should reveal new strategies for antimicrobial drug discovery.

Original languageEnglish
Pages (from-to)1245-1252
Number of pages8
JournalDrug Discovery Today
Issue number18
Publication statusPublished or Issued - 15 Sep 2005
Externally publishedYes

ASJC Scopus subject areas

  • Pharmacology
  • Drug Discovery

Cite this