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Exposome, UV and Skin Homeostasis

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

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2894

Special Issue Editors


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Guest Editor
CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, Université Grenoble Alpes, 38000 Grenoble, France
Interests: proteomics; metabolomics; environmental exposure
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
CEA, INSERM, IRIG-BGE UA13, Université Grenoble Alpes, 38000 Grenoble, France
Interests: skin cancer; aging; stem cells; skin organoids; UV; DNA repair; genetotoxicity
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, Université Grenoble Alpes, 38000 Grenoble, France
Interests: proteomics; mass spectrometry-based proteomics; environmental exposure, biomarkers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

The exposome represents the total exposure to xenobiotics or environmental factors that a human or animal organism undergoes, from its conception to the end of life through different gateways into our body (skin, lungs, digestive tract, etc.). The exposome acts on all of our cells and tissues, and, in combination with genetic and/or epigenetic factors, may be responsible for physiological disorders such as aging or chronic diseases. At the molecular level, it acts directly on biomolecules, receptors and modifies intracellular and extra-cellular signaling. Determining the mechanisms of action, signaling pathways and targets is essential to understand the effects of this exposome. The use of omics techniques (transcriptomics, proteomics, metabolomics, etc.) allows a global approach to the understanding of these mechanisms, the discovery of exposure markers and markers of effects, as well as the identification of therapeutic targets to reduce or eliminate the risks induced by this exposome.

The skin in general and the epidermis in particular, which is the outermost layer of the skin, represents a real barrier against chemical and physical aggressions such as pollutants, UV and ionizing radiations. This allows the skin to be the perfect tissue to study the biological and molecular effects of the exposome.

In this special issue, we invite you to participate and we expect original works addressing the cellular and molecular effects of exposome in tissue and particulary skin homeostasis using several in vitro or in vivo models (2D, 3D, organoids or animals), the implementation of omics approaches and the analysis of data obtained, suited for assessing the molecular mechanisms and signaling of exposome, the discovery of biomarkers of exposure/effects and the identification of molecular targets able to modulate the effect of the exposome.

Prof. Dr. Michel Sève
Dr. Walid Rachidi
Dr. Sandrine Bourgoin-Voillard
Guest Editors

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Keywords

  • toxicomics
  • omics (transcriptomics, proteomics, metabolomics)
  • toxicology
  • exposome
  • effects of exposure
  • biomarkers of exposure
  • biomarkers of effects
  • skinomics

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Published Papers (1 paper)

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Research

11 pages, 1468 KiB  
Article
Effect of Ultraviolet Radiation and Benzo[a]pyrene Co-Exposure on Skin Biology: Autophagy as a Potential Target
by Mohammad Fayyad-Kazan, Farah Kobaisi, Ali Nasrallah, Patrick Matarrese, Richard Fitoussi, Sandrine Bourgoin-Voillard, Michel Seve and Walid Rachidi
Int. J. Mol. Sci. 2023, 24(6), 5863; https://doi.org/10.3390/ijms24065863 - 20 Mar 2023
Cited by 2 | Viewed by 2530
Abstract
The skin is the outermost protective barrier of the human body. Its role is to protect against different physical, chemical, biological and environmental stressors. The vast majority of studies have focused on investigating the effects of single environmental stressors on skin homeostasis and [...] Read more.
The skin is the outermost protective barrier of the human body. Its role is to protect against different physical, chemical, biological and environmental stressors. The vast majority of studies have focused on investigating the effects of single environmental stressors on skin homeostasis and the induction of several skin disorders, such as cancer or ageing. On the other hand, much fewer studies have explored the consequences of the co-exposure of skin cells to two or more stressors simultaneously, which is much more realistic. In the present study, we investigated, using mass-spectrometry-based proteomic analysis, the dysregulated biological functions in skin explants after their co-exposure to ultraviolet radiation (UV) and benzo[a]pyrene (BaP). We observed that several biological processes were dysregulated, among which autophagy appeared to be significantly downregulated. Furthermore, immunohistochemistry analysis was carried out to validate the downregulation of the autophagy process further. Altogether, the output of this study provides an insight into the biological responses of skin to combined exposure to UV + BaP and highlights autophagy as a potential target that might be considered in the future as a novel candidate for pharmacological intervention under such stress conditions. Full article
(This article belongs to the Special Issue Exposome, UV and Skin Homeostasis)
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