Subpopulations in Strains of Staphylococcus aureus Provide Antibiotic Tolerance Show others and affiliations
2023 (English) In: Antibiotics, E-ISSN 2079-6382, Vol. 12, no 2, article id 406Article in journal (Refereed) Published
Abstract [en]
The ability of Staphylococcus aureus to colonise different niches across the human body is linked to an adaptable metabolic capability, as well as its ability to persist within specific tissues despite adverse conditions. In many cases, as S. aureus proliferates within an anatomical niche, there is an associated pathology. The immune response, together with medical interventions such as antibiotics, often removes the S. aureus cells that are causing this disease. However, a common issue in S. aureus infections is a relapse of disease. Within infected tissue, S. aureus exists as a population of cells, and it adopts a diversity of cell types. In evolutionary biology, the concept of “bet-hedging” has established that even in positive conditions, there are members that arise within a population that would be present as non-beneficial, but if those conditions change, these traits could allow survival. For S. aureus, some of these cells within an infection have a reduced fitness, are not rapidly proliferating or are the cause of an active host response and disease, but these do remain even after the disease seems to have been cleared. This is true for persistence against immune responses but also as a continual presence in spite of antibiotic treatment. We propose that the constant arousal of suboptimal populations at any timepoint is a key strategy for S. aureus long-term infection and survival. Thus, understanding the molecular basis for this feature could be instrumental to combat persistent infections.
Place, publisher, year, edition, pages MDPI , 2023. Vol. 12, no 2, article id 406
Keywords [en]
persister cells, small colony variant (SCV), Staphylococcus aureus
National Category
Infectious Medicine
Identifiers URN: urn:nbn:se:hj:diva-59957 DOI: 10.3390/antibiotics12020406 ISI: 000938264600001 PubMedID: 36830316 Scopus ID: 2-s2.0-85148852663 Local ID: GOA;intsam;864056 OAI: oai:DiVA.org:hj-59957 DiVA, id: diva2:1741577
2023-03-062023-03-062024-07-04 Bibliographically approved