Combining Bacteriophage and Linezolid to Fight Staphylococcus aureus
Author Information
Author(s): Narina K. Abdraimova, Egor A. Shitikov, Dmitry A. Bespiatykh, Roman B. Gorodnichev, Ksenia M. Klimina, Vladimir A. Veselovsky, Daria I. Boldyreva, Alexandra S. Bogdanova, Dmitry V. Klinov, Maria A. Kornienko
Primary Institution: Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
Hypothesis
Can the combination of bacteriophage vB_SauM-515A1 and linezolid enhance the treatment effectiveness against methicillin-resistant Staphylococcus aureus?
Conclusion
The combination of bacteriophage vB_SauM-515A1 and linezolid showed a synergistic effect against planktonic S. aureus, but the treatment sequence affected biofilm efficacy.
Supporting Evidence
- The combination of 1/8 MIC of linezolid and 0.01 MOI of the bacteriophage completely inhibited bacterial growth.
- Sequential administration of the phage followed by linezolid resulted in antagonism.
- Simultaneous application of both agents demonstrated a synergistic effect.
- Transcriptomic analysis revealed significant changes in nucleotide metabolism and virulence factors.
Takeaway
Using a virus that attacks bacteria along with an antibiotic can work better together to fight off a tough germ called Staphylococcus aureus, but how you use them matters.
Methodology
The study used checkerboard assays to evaluate the effects of bacteriophage and linezolid on planktonic and biofilm-associated S. aureus, along with transcriptomic analysis.
Limitations
The study did not achieve complete eradication of biofilm-associated bacteria with any treatment method.
Statistical Information
P-Value
0.225
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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