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Genetic variants affecting chemical mediated skin immunotoxicity
Isisdoris Rodrigues de Souza1, Patrícia Savio de Araujo-Souza2, Daniela Morais Leme1,3
1Graduate Program in Genetics, Department of Genetics, Federal University of Paraná (UFPR), Curitiba, Brazil.
Genetic variations influence how the skin reacts to chemicals, potentially causing immune-mediated skin disorders. Understanding these genetic factors is key to assessing chemical risks to human health.
Area of Science:
- Dermatology
- Toxicology
- Immunology
- Genetics
Background:
- The skin acts as a competent immune organ, but chemical exposure can impair this function, leading to immune-mediated dermal disorders.
- Individual susceptibility to chemical-induced skin immune reactions is influenced by genetic factors.
- Research over the past 30-40 years has identified numerous genes affecting skin immune responses.
Purpose of the Study:
- To review common genetic variations that impact skin immunotoxicity.
- To highlight genes involved in xenobiotic metabolism, antioxidant defense, and immune signaling pathways relevant to skin health.
- To discuss genetic variants associated with both susceptibility and protection of skin immune homeostasis.
Main Methods:
- Literature review of genetic polymorphisms affecting skin immune reactions.
- Focus on genes related to xenobiotic metabolism (CYP genes), antioxidant defense (GST genes), aryl hydrocarbon receptor signaling (AHR, ARNT), skin barrier function (FLG, CASP14, SPINK5), inflammation (TNF, IL10, IL6, IL18, IL31, TSLP), MHC, and neuroendocrine peptides (CALCA, TRPV1, ACE).
Main Results:
- Specific gene polymorphisms in xenobiotic-metabolizing enzymes, antioxidant defenses, and immune signaling pathways are linked to skin immune responses.
- Variants in genes controlling skin barrier function and inflammation play a role in susceptibility to chemical-induced skin disorders.
- Some genetic variations offer protection to skin immune homeostasis following chemical exposure.
Conclusions:
- Genetic variations significantly influence individual susceptibility to skin immunotoxicity.
- Further molecular and association studies are needed to elucidate the functional consequences of these genetic variants.
- Understanding these genetic factors can improve the assessment of chemical hazards and risks to human health.
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