User profiles for Xenia Kostoulias

Xenia Kostoulias, PhD

Department of Microbiology and Department of Infectious Diseases Monash University
Verified email at monash.edu
Cited by 2054

Bacteriophage-resistant Acinetobacter baumannii are resensitized to antimicrobials

…, JH Forsyth, R Patwa, X Kostoulias… - Nature …, 2021 - nature.com
We characterized two bacteriophages, ΦFG02 and ΦCO01, against clinical isolates of
Acinetobacter baumannii and established that the bacterial capsule is the receptor for these …

[HTML][HTML] Phage-antibiotic combination is a superior treatment against Acinetobacter baumannii in a preclinical study

FLG Altamirano, X Kostoulias, D Subedi, D Korneev… - …, 2022 - thelancet.com
Background Clinical phage therapy is often delivered alongside antibiotics. However, the
phenomenon of phage-antibiotic synergy has been mostly studied in vitro. Here, we assessed …

[HTML][HTML] Antibiotic-chemoattractants enhance neutrophil clearance of Staphylococcus aureus

JAE Payne, J Tailhades, F Ellett, X Kostoulias… - Nature …, 2021 - nature.com
The pathogen Staphylococcus aureus can readily develop antibiotic resistance and evade
the human immune system, which is associated with reduced levels of neutrophil recruitment. …

[HTML][HTML] The mechanisms of disease caused by Acinetobacter baumannii

FC Morris, C Dexter, X Kostoulias, MI Uddin… - Frontiers in …, 2019 - frontiersin.org
Acinetobacter baumannii is a Gram negative opportunistic pathogen that has demonstrated
a significant insurgence in the prevalence of infections over recent decades. With only a …

A Global Virulence Regulator in Acinetobacter baumannii and Its Control of the Phenylacetic Acid Catabolic Pathway

GM Cerqueira, X Kostoulias, C Khoo… - The Journal of …, 2014 - academic.oup.com
Background. Acinetobacter baumannii is one of the most notorious hospital-acquired
pathogens, and novel treatment strategies are desperately required. Two-component regulatory …

Acinetobacter baumannii phenylacetic acid metabolism influences infection outcome through a direct effect on neutrophil chemotaxis

…, F Ellett, GL Murray, X Kostoulias… - Proceedings of the …, 2016 - National Acad Sciences
Innate cellular immune responses are a critical first-line defense against invading bacterial
pathogens. Leukocyte migration from the bloodstream to a site of infection is mediated by …

Serine/Threonine Phosphatase Stp1 Contributes to Reduced Susceptibility to Vancomycin and Virulence in Staphylococcus aureus

DR Cameron, DV Ward, X Kostoulias… - The Journal of …, 2012 - academic.oup.com
The genetic mechanisms that contribute to reduced susceptibility to vancomycin in
Staphylococcus aureus are complex and heterogeneous. In addition, debate is emerging as to the …

The RpoB H481Y rifampicin resistance mutation and an active stringent response reduce virulence and increase resistance to innate immune responses in …

…, DR Cameron, JK Davies, X Kostoulias… - The Journal of …, 2013 - academic.oup.com
The occurrence of mutations in methicillin-resistant Staphylococcus aureus (MRSA) during
persistent infection leads to antimicrobial resistance but may also impact host-pathogen …

Antibiotic resistance and host immune evasion in Staphylococcus aureus mediated by a metabolic adaptation

…, CM Wu, AP Le Brun, X Kostoulias… - Proceedings of the …, 2019 - National Acad Sciences
Staphylococcus aureus is a notorious human bacterial pathogen with considerable capacity
to develop antibiotic resistance. We have observed that human infections caused by highly …

Unstable chromosome rearrangements in Staphylococcus aureus cause phenotype switching associated with persistent infections

R Guérillot, X Kostoulias, L Donovan… - Proceedings of the …, 2019 - National Acad Sciences
Staphylococcus aureus small-colony variants (SCVs) are associated with unusually chronic
and persistent infections despite active antibiotic treatment. The molecular basis for this …