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Simon K, Reichardt P, Luch A, Roloff A, Siewert K, Riedel F. Less efficient skin penetration of the metal allergen Pd 2+ compared to Ni 2+ and Co 2+ from patch test preparations. Contact Dermatitis 2024. [PMID: 38676576 DOI: 10.1111/cod.14569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/01/2024] [Accepted: 04/17/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Contrary to Ni2+- and Co2+-induced allergic contact dermatitis (ACD), reactions against Pd2+ are rare. However, Pd2+ activates a larger T cell fraction in vitro, suggesting an inefficient skin penetration. OBJECTIVES This study compares Ni2+, Co2+ and Pd2+ skin penetration from commonly used diagnostic patch test preparations (PTPs) and aqueous metal salt solutions. METHODS Using Franz diffusion cell assays, we applied the metals in PTPs (5% NiSO4, 1% CoCl2, 2% PdCl2 and 3% Na2PdCl4) and in solution to pigskin for 48 h, thereby mirroring the time frame of a patch test. The different compartments were analysed individually by inductively coupled plasma mass spectrometry. RESULTS Metal ions were mainly retained in the upper stratum corneum layers. After application of PTPs, concentrations in the viable skin were lower for Pd2+ (1 and 7 μM) compared to Ni2+ and Co2+ (54 and 17 μM). CONCLUSIONS Ni2+ and Co2+ penetrated the skin more efficiently than Pd2+ and thus may sensitize and elicit ACD more easily. This was observed for ions applied in petrolatum and aqueous solutions. We hypothesize that the differently charged metal complexes are responsible for the varying skin penetration behaviours.
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Affiliation(s)
- Konstantin Simon
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Philipp Reichardt
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Alexander Roloff
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Katherina Siewert
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Franziska Riedel
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
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Liljedahl ER, Gliga A, de Paula HK, Engfeldt M, Julander A, Lidén C, Lindh C, Broberg K. Inflammation-related proteins in blood after dermal exposure to some common chemicals depend on the skin barrier gene filaggrin - a human experimental study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 105:104346. [PMID: 38135200 DOI: 10.1016/j.etap.2023.104346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Filaggrin (FLG), a skin barrier protein, is associated with higher dermal uptake of some chemicals in carriers of loss-of-function (null) mutations. This study investigates FLG mutations and systemic effects following dermal exposure to chemicals. Individuals (n = 23 FLG null, n = 31 FLG wt) were simultaneously exposed to pyrimethanil, pyrene, oxybenzone, and nickel ions for 4 h. Pre- and post-exposure, 25-hydroxyvitamin D3 (25(OH)D3, LC-MS/MS) and 92 inflammation-related proteins (proximity-extension assay) were measured. FLG null carriers exhibited significantly higher 25(OH)D3 concentrations than wt carriers, both pre- and post-exposure. Eleven proteins differed in abundance post- vs pre-exposure among FLG null carriers, and 22 proteins among wt carriers (three proteins overlapped). Twelve proteins showed median differences (post- vs pre-exposure) between FLG null and wt carriers. Overall, FLG null carriers showed an increase, while FLG wt carriers showed a decrease in inflammation-related proteins. These findings suggest FLG-dependent differences in susceptibility to systemic effects following simultaneous dermal chemical exposure.
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Affiliation(s)
- Emelie Rietz Liljedahl
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Anda Gliga
- Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Helena Korres de Paula
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Malin Engfeldt
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden; Department of Occupational and Environmental Medicine, Region Skåne, Lund, Sweden
| | - Anneli Julander
- Sustainable Working life, IVL Swedish Environmental Research Institute, Stockholm, Sweden; Unit of Integrative Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Carola Lidén
- Unit of Integrative Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Christian Lindh
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Karin Broberg
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden; Unit of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Masuda-Kuroki K, Alimohammadi S, Di Nardo A. S. epidermidis Rescues Allergic Contact Dermatitis in Sphingosine 1-Phosphate Receptor 2-Deficient Skin. Int J Mol Sci 2023; 24:13190. [PMID: 37685997 PMCID: PMC10487941 DOI: 10.3390/ijms241713190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Recent studies have identified a subtype of the S1P-receptor family called sphingosine-1-phosphate receptor 2 (S1PR2), which plays a crucial role in maintaining the skin barrier. It has been observed that S1PR2 and Staphylococcus epidermidis (S. epidermidis) work together to regulate the skin barrier. However, the interaction between these two factors is still unclear. To investigate this, a study was conducted on healthy skin and allergic contact dermatitis (ACD) using 3,4-Dibutoxy-3-cyclobutene-1,2-dione (SADBE) on the ears of S1pr2fl/fl and S1pr2fl/flK14-Cre mice and using 1 × 106 CFU of S. epidermidis to examine its effects on the skin. The results showed that in S. epidermidis-conditioned ACD, the ear thickness of S1pr2fl/flK14-Cre mice was lower than that of S1pr2fl/fl mice, and mRNA expressions of Il-1β and Cxcl2 of S1pr2fl/flK14-Cre mice were lower than that of S1pr2fl/fl mice in ACD with S. epidermidis. Furthermore, the gene expression of Claudin-1 and Occludin in S1pr2fl/flK14-Cre mice was higher than that of S1pr2fl/fl mice in ACD with S. epidermidis. The study concludes that S. epidermidis colonization improves the skin barrier and prevents ACD even when S1P signaling malfunctions.
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Affiliation(s)
| | | | - Anna Di Nardo
- Department of Dermatology, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; (K.M.-K.); (S.A.)
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Symanzik C, John SM. Occupational exposure to cobalt nanoparticles: potential implications on risk assessment and preventive measures. Br J Dermatol 2023; 188:161-162. [PMID: 36653325 DOI: 10.1093/bjd/ljac053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/12/2022] [Indexed: 01/20/2023]
Affiliation(s)
- Cara Symanzik
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany
| | - Swen Malte John
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at Osnabrück University, Osnabrück, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, Osnabrück, Germany
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Pavel AB, Del Duca E, Cheng J, Wu J, Ungar B, Estrada YD, Jack C, Maari C, Proulx ÉSC, Ramirez-Valle F, Krueger JG, Bissonnette R, Guttman-Yassky E. Delayed type hypersensitivity reactions to various allergens may differently model inflammatory skin diseases. Allergy 2023; 78:178-191. [PMID: 36178084 DOI: 10.1111/all.15538] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/22/2022] [Accepted: 09/08/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Treatment of inflammatory skin diseases, including atopic dermatitis (AD) and psoriasis, is undergoing transformative changes, highlighting the need to develop experimental models of skin inflammation in humans to predict treatment responses. METHODS We topically or intradermally administered four common sensitizers (dust mite (DM), diphencyprone (DPCP), nickel (Ni), and purified protein derivative (PPD)) to the backs of 40 healthy patients and the skin hypersensitivity response was biopsied and evaluated using immunohistochemistry, RNA-seq, and RT-PCR. RESULTS All agents induced strong increases in cellular infiltrates (T-cells and dendritic cells) as compared to untreated skin (p < .05), with variable T helper polarization. Overall, DPCP induced the strongest immune responses across all pathways, including innate immunity (IL-1α, IL-8), Th1 (IFNγ, CXCL10), Th2 (IL-5, CCL11), and Th17 (CAMP/LL37) products, as well as the highest regulatory tone (FOXP3, IL-34, IL-37) (FDR <0.01). Nickel induced Th17 (IL-17A), Th1 (CXCL10) and Th2 (IL-4R) immune responses to a lesser extent than DPCP (p < .05). PPD induced predominantly Th1 (IFNγ, CXCL10, STAT1) and Th17 inflammation (IL-17A) (p < .05). DM induced modulation of Th2 (IL-13, CCL17, CCL18), Th22 (IL-22), and Th17/Th22 (S100A7/9/12) pathways (p < .05). Barrier defects that characterize both AD and psoriasis were best modeled by DPCP and Ni, followed by PPD, including downregulation of terminal differentiation (FLG, FLG2, LOR, LCEs), tight junction (CLDN1/CLDN8), and lipid metabolism (FA2H, FABP7)-related markers. CONCLUSION Our data imply that DPCP induced the strongest immune response across all pathways, and barrier defects characteristic of AD and psoriasis.
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Affiliation(s)
- Ana B Pavel
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ester Del Duca
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Dermatology, University of Magna Graecia, Catanzaro, Italy
| | - Julia Cheng
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jianni Wu
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Ungar
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yeriel D Estrada
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Carolyn Jack
- Innovaderm Research Inc, Montreal, Quebec, Canada
| | | | | | | | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | | | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
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