Dr Primrose Freestone
Department of Infection
University of Leicester
I'm a biochemist by training with extensive experience in bacterial physiology and biochemistry, including bacterial protein phosphorylation (I was the first to identify tyrosine phosphorylation as a regulatory mechanism in bacteria and provided key evidence concerning the biochemical function of the Universal Stress protein (uspA) in E. coli).
Microbial Endocrinology is directed at providing a new framework with which to examine and understand the ability of microorganisms to interact with a host in both health and disease (Freestone et al 2008, Trends in Microbiology). My Microbial Endocrinology research interests are focused on the relationship between stress and how it influences human and animal infection, particularly the effects of exposure to human stress hormones such as adrenaline and noradrenaline on bacterial growth and virulence. This research has led to the demonstration that stress hormones stimulate biofilm formation in normally harmless skin commensals such as Staphylococcus epidermidis, an important factor in the mechanism by which these inadvertent pathogens form biofilms within indwelling medical devices. This research was funded by the Wellcome Trust and was published as a lead article in the Lancet.
Freestone P, Hirst R, Sandrini S, Sharaff F, Fry H, et al., (2012). Pseudomonas aeruginosa-Catecholamine Inotrope Interactions: A contributory factor in the development of ventilator associated pneumonia? 142(5):1200-10.