Adrenaline modulates the global transcriptional profile of Salmonella revealing a role in the antimicrobial peptide and oxidative stress resistance responses
2008
How Adrenaline Affects Salmonella
publication
Evidence: moderate
Author Information
Author(s): Karavolos MH, Spencer H, Bulmer DM, Thompson A, Winzer K, Williams P, Hinton JCD, Khan CMA
Primary Institution: Institute for Cell and Molecular Biosciences, The Medical School, University of Newcastle
Hypothesis
What is the impact of adrenaline on the biology of Salmonella spp.?
Conclusion
Adrenaline helps Salmonella sense stress and reduces its resistance to certain antimicrobial peptides.
Supporting Evidence
- Adrenaline induces changes in the transcriptome of Salmonella.
- Key metal transport systems are upregulated in response to adrenaline.
- Adrenaline reduces the expression of antimicrobial peptide resistance genes.
- Effects of adrenaline can be reversed by the β-adrenergic blocker propranolol.
Takeaway
Adrenaline is like a signal for Salmonella, telling it to prepare for danger, but it also makes it weaker against some defenses.
Methodology
The study used transcriptomic analysis to assess the effects of adrenaline on Salmonella enterica serovar Typhimurium.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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