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Infect Genet Evol. 2014 Jan;21:510-4. doi: 10.1016/j.meegid.2013.08.018. Epub 2013 Aug 29.

Staphylococcus aureus: a pathogen with still unresolved issues.

Author information

1
UMR U1111 INSERM Université de Lyon, Site Laënnec, 8 rue Guillaume Paradin, 69372 Lyon, France; Hospices Civils de Lyon, Groupement Hospitalier Est, 69 Boulevard Pinel, 69677 Bron, France.
2
UMR U1111 INSERM Université de Lyon, Site Laënnec, 8 rue Guillaume Paradin, 69372 Lyon, France; Hospices Civils de Lyon, Groupement Hospitalier Est, 69 Boulevard Pinel, 69677 Bron, France. Electronic address: francois.vandenesch@univ-lyon1.fr.

Abstract

Staphylococcus aureus is a major human pathogen, and considerable research efforts have been put forward to improve our understanding of its complex pathogenesis. In spite of these efforts, the burden of staphylococcal infections is still on the rise. This review focuses on a selected set of crucial unresolved questions regarding this pathogen, namely: (i) the nature of the driving forces behind the rise and decline of methicillin-resistant S.aureus (MRSA) clones; (ii) the mechanisms by which a commensal becomes a pathogen; (iii) the molecular underpinnings of toxin overexpression in hypervirulent MRSA clones such as USA300; and (iv) the repeated failures of anti-S.aureus vaccine approaches.

KEYWORDS:

Bacterial toxins; Gene expression regulation; MRSA; Molecular epidemiology; Staphylococcus aureus; Vaccine strategy

PMID:
23994773
DOI:
10.1016/j.meegid.2013.08.018
[Indexed for MEDLINE]

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