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Molecular Mechanisms of Microbe–Skin Interactions

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Microbiology".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 794

Special Issue Editor


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Guest Editor
Microbial Genetics, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls Universität Tuebingen, 72076 Tuebingen, Germany
Interests: microbiology; infection biology; the physiology of staphylococci; lipoproteins as key players in immune response and virulence

Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to compile a series of original research papers and reviews that focus on the molecular mechanisms of the interaction between microorganisms and the skin. The skin is the largest interface between the host and the environment, and we know that it is colonized with trillions of microorganisms, commensal microbiota, that play an important role in tissue homeostasis and maintaining a symbiotic relationship with the immune system. The skin microbiota is deemed to be in good condition if it is in balance with the skin immune system and protects the skin from pathogens. But under certain circumstances, we know that the skin microbiota can be remodeled over time to a predominantly ‘bad’ population. However, finding out which are the good bugs and which are the bad bugs is not so easy to determine.

We are planning a series of publications that will shed light on the interaction between microorganisms and the skin at the molecular and physiological levels. The questions we would like to address are as follows: how do representatives of the skin microbiota manage to form such a long-lasting bond with the skin; how do they adhere to skin cells; how do they manage to survive and persist at low pH, high fatty acid content, and the presence of defensins; how do they outwit the immune system; how do microbial metabolites control the immune system and peripheral neuro system; how can pathogenic microorganisms can take over; and how they damage the skin and trigger the development of chronic skin diseases.

With this range of selected topics, we hope to contribute to a better understanding of the skin and its inhabitants.

Dr. Friedrich Götz
Guest Editor

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Keywords

  • colonization
  • cosmetics
  • diseases (e.g., acne, diabetic foot syndrome (DFS), psoriasis, etc.)
  • health
  • immunity
  • lipidomics
  • metabolomics
  • metagenomics
  • neurotransmitter
  • physiology
  • skin habitat
  • skin microbiota
  • prebiotics
  • probiotics
  • wound healing

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Published Papers (1 paper)

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Research

18 pages, 2970 KiB  
Article
Transcriptional Profiling of Staphylococcus aureus during the Transition from Asymptomatic Nasal Colonization to Skin Colonization/Infection in Patients with Atopic Dermatitis
by Peijuan Li, Julia Schulte, Gerda Wurpts, Mathias W. Hornef, Christiane Wolz, Amir S. Yazdi and Marc Burian
Int. J. Mol. Sci. 2024, 25(17), 9165; https://doi.org/10.3390/ijms25179165 - 23 Aug 2024
Viewed by 485
Abstract
Staphylococcus aureus acts both as a colonizing commensal bacterium and invasive pathogen. Nasal colonization is associated with an increased risk of infection caused by the identical strain. In patients with atopic dermatitis (AD), the degree of S. aureus colonization is associated with the [...] Read more.
Staphylococcus aureus acts both as a colonizing commensal bacterium and invasive pathogen. Nasal colonization is associated with an increased risk of infection caused by the identical strain. In patients with atopic dermatitis (AD), the degree of S. aureus colonization is associated with the severity of the disease. Here, we comparatively analyzed the in vivo transcriptional profile of S. aureus colonizing the nose and non-diseased skin (non-lesional skin) as opposed to the diseased skin (lesional skin—defined here as infection) of 12 patients with AD. The transcriptional profile during the asymptomatic colonization of the nose closely resembled that of the lesional skin samples for many of the genes studied, with an elevated expression of the genes encoding adhesion-related proteins and proteases. In addition, the genes that modify and remodel the cell wall and encode proteins that facilitate immune evasion showed increased transcriptional activity. Notably, in a subgroup of patients, the global virulence regulator Agr (accessory gene regulator) and downstream target genes were inactive during nasal colonization but upregulated in the lesional and non-lesional skin samples. Taken together, our results demonstrate a colonization-like transcriptional profile on diseased skin and suggest a role for the peptide quorum sensing system Agr during the transition from asymptomatic nasal colonization to skin colonization/infection. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Microbe–Skin Interactions)
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