scholarly journals Pterostilbene Attenuates Hexavalent Chromium-Induced Allergic Contact Dermatitis by Preventing Cell Apoptosis and Inhibiting IL-1β-Related NLRP3 Inflammasome Activation

2018 ◽  
Vol 7 (12) ◽  
pp. 489 ◽  
Author(s):  
Bour-Jr Wang ◽  
Hui-Wen Chiu ◽  
Yong-Lin Lee ◽  
Chia-Yi Li ◽  
Ying-Jan Wang ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Protein Kinase ◽  
Allergic Contact Dermatitis ◽  
Hexavalent Chromium ◽  
Nlrp3 Inflammasome ◽  
Hacat Cells ◽  
Skin Reactions ◽  
Tnf Α ◽  
Allergic Contact

Hexavalent chromium (Cr(VI)) is widely used in many industries but can induce contact dermatitis especially in cement industries. Many cement workers suffer from Cr(VI)-induced allergic contact dermatitis (ACD), and prevention and therapeutic strategies are still lacking. Pterostilbene (PT) is a natural compound predominantly found in blueberries. Studies indicate the potential use of PT as an effective anti-oxidative and anti-inflammatory agent. Herein, we investigated the possible mechanisms involved and whether chromium-induced ACD could be effectively inhibited by treating PT. In our in vivo study, epidermal Cr(VI) administration causes cutaneous inflammation in mice ear skin, and the pro-inflammatory cytokines, TNF-α and IL-1β, were found in the epidermis, presenting the level of increase after Cr(VI) treatment. Meanwhile, the results of our in vitro experiment showed that apoptosis and endoplasmic reticulum (ER) stress were induced after treatment with different concentrations of Cr(VI) in HaCaT cells (human keratinocyte). Cr(VI) also induced TNF-α and IL-1β mRNA expressions, through the activation of the p38 mitogen-activated protein kinase (MAPK)/MAPK-activated protein kinase 2 (MK2) pathway. Notably, the severity of the skin reactions in the epicutaneous elicitation test significantly diminished when the mouse was treated with PT. Likewise, PT intervention also ameliorated the inflammation and apoptosis of HaCaT cells in vitro. Furthermore, our current findings demonstrated that the NLRP3 inflammasome could be involved in the Cr(VI)-mediated inflammation and apoptosis of ACD. Thus, interrupting this mechanism with proper nontoxic agents, such as PT, could be a new option to improve occupational chromium toxicity and hypersensitivity.

scholarly journals Effect of Cone of Pinus densiflora on DNCB-Induced Allergic Contact Dermatitis-Like Skin Lesion in Balb/c Mice

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 839
Author(s):  
Boguen Kwon ◽  
SooYeon Hong ◽  
Eun-Young Kim ◽  
Jae-Hyun Kim ◽  
Minsun Kim ◽  
...  
Keyword(s):  
T Cells ◽  
Contact Dermatitis ◽  
Skin Lesion ◽  
Allergic Contact Dermatitis ◽  
Pinus Densiflora ◽  
Hacat Cells ◽  
Tnf Α ◽  
Ifn Γ ◽  
Allergic Contact

Cone of Pinus densiflora (CP), or Korean red pinecone, is a cluster of Pinus densiflora fruit. CP has also been verified in several studies to have anti-oxidation, anti-fungal, anti-bacterial, and anti-melanogenic effects. However, anti-inflammatory effects have not yet been confirmed in the inflammatory responses of pinecones to allergic contact dermatitis. The purpose of this study is to prove the anti-inflammatory effect of CP on allergic contact dermatitis (ACD) in vitro and in vivo. CP inhibited the expression of TSLP, TARC, MCP-1, TNF-α, and IL-6 in TNF-α/IFN-γ-stimulated HaCaT cells and MCP-1, GM-CSF, TNF-α, IL-6, and IL-8 in PMACI (phorbol-12-myristate-13-acetate plus A23187)-stimulated HMC-1 cells. CP inhibited the phosphorylation of mitogen-activated protein kinase (MAPKs), as well as the translocation of NF-κB on TNF-α/IFN-γ stimulated in HaCaT cells. In vivo, CP decreased major symptoms of ACD, levels of IL-6 in skin lesion, thickening of the epidermis and dermis, infiltration of eosinophils and mast cells, and the infiltration of CD4+ T cells and CD8+ T cells. This result suggests that CP represents a potential alternative medicine to ACD for diseases such as chronic skin inflammation.

Red Grape Polyphenol Oral Administration improves Immune Response in Women Affected by Nickel-Mediated Allergic Contact Dermatitis

2020 ◽  
Vol 20 ◽  
Author(s):  
Thea Magrone ◽  
Emilio Jirillo ◽  
Manrico Magrone ◽  
Matteo Antonio Russo ◽  
Paolo Romita ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Oral Administration ◽  
Allergic Contact Dermatitis ◽  
Laboratory Data ◽  
Anti Oxidant ◽  
Anti Inflammatory ◽  
Red Grape ◽  
Allergic Contact ◽  
Drop Outs

Background: Our previous findings demonstrated that in vitro supplementation of polyphenols, extracted from seeds of red grape (Nero di Troia cultivar), to peripheral lymphomonocytes from patients affected by allergic contact dermatitis (ACD) to nickel (Ni) could reduce release of pro-inflammatory cytokines and nitric oxide (NO), while increasing levels of interleukin (IL)-10, an anti-inflammatory cytokine. Objective: To assess whether an intervention with oral administration of polyphenols leads to a reduction of peripheral biomarkers in ACD patients. Method: At T0, 25 patients affected by ACD to Ni were orally administered with 300 mg polyphenols prodie extracted from seeds of red grape (Nero di Troia cultivar) (NATUR-OX®) for 3 months (T1). Other 25 patients affected by ACD to Ni received placebo only for the same period of time. Serum biomarkers were analyzed at T0 and T1. In both groups seven drop outs were recorded. Result: At T1 in comparison to T0, in treated patients, values of IFN-γ, IL-4, IL-17, PTX3 and NO decreased, while IL-10 levels increased when compared with T0 values. Conversely, in placebo-treated patients no modifications of biomarkers were evaluated at T1. Conclusion: Present laboratory data rely on the anti-oxidant, anti-inflammatory and anti-allergic properties of polyphenols.

scholarly journals Further Evidence of Severe Allergic Contact Dermatitis From Isobornyl Acrylate While Using a Continuous Glucose Monitoring System

2018 ◽  
Vol 12 (3) ◽  
pp. 630-633 ◽  
Author(s):  
Stefanie Kamann ◽  
Olivier Aerts ◽  
Lutz Heinemann
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Monitoring System ◽  
Continuous Glucose Monitoring ◽  
Glucose Sensor ◽  
Skin Irritation ◽  
Glucose Monitoring ◽  
Gas Chromatography Mass Spectrometry ◽  
Skin Reactions ◽  
Allergic Contact

In the past decade, new diabetes technologies, including continuous glucose monitoring (CGM) systems, support patients with diabetes in their daily struggle with achieving a good glucose control. However, shortly after the first CGM systems appeared on the market, also the first concerns about adverse skin reactions were raised. Most patients claimed to suffer from (sometimes severe) skin irritation, or even allergy, which they related to the (acrylate-based) adhesive part of the device. For a long time the actual substance that caused these skin reactions with, for example, the Flash Glucose Monitoring system (iscCGM; Freestyle® Libre) could not be identified; however, recently Belgian and Swedish dermatologists reported that the majority of their patients that have developed a contact-allergic while using iscCGM react sensitively to a specific acrylate, that is, isobornyl acrylate (IBOA). Subsequently they showed by means of gas chromatography-mass spectrometry that this substance is present in the case of the glucose sensor attached by an adhesive to the skin. We report three additional cases from Germany, including a 10-year-old boy, suffering from severe allergic contact dermatitis to IBOA.

scholarly journals Inhibitory Effect of Sulfated Polysaccharide from Codium edule P.C. Silva Against 2,4-Dinitrofluorobenzene (DNFB)- Induced Allergic Contact Dermatitis on Female BALB/c Mice

2021 ◽  
Author(s):  
Martin Raemond Brondial Mallabo ◽  
Mary Jho - Anne T. Corpuz ◽  
Reginald B. Salonga ◽  
Ross D. Vasquez
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Inflammatory Cells ◽  
Sulfated Polysaccharide ◽  
Gel Chromatography ◽  
Dependent Manner ◽  
Tnf Α ◽  
Ifn Γ ◽  
Anti Inflammatory ◽  
Allergic Contact

Purpose: Sulfated polysaccharide (SP) from Codium species has been reported for its anti-inflammatory activities. However, the effect of SP from C. edule on allergic responses has not been studied. The study was conducted to determine the effect of SP (F1) from C. edule on allergic contact dermatitis (ACD) induced by 2,4-dinitrofluorobenzene (DNFB) in female BALB/c mice. Methods: F1 was isolated using DEAE Sepharose Gel Chromatography and chemically identified by LC-MS analyses. The effects of F1 on changes in ear thickness, allergic responses, and histology were evaluated. The effects of F1 on the production of inflammatory cytokines IFN- γ and TNF-α in serum were also quantified and compared with standard prednisolone therapy. Results: F1 was identified as a heteropolysaccharide with β-D-galactans and β-L-arabinans units. F1 was non-toxic at 2000 mg/kg. Administration of F1 in DNFB-challenged mice significantly suppressed the increase in ear thickness, erythema, desquamation, and proliferation of inflammatory cells. F1 significantly decreased the production of inflammatory markers, IFN- γ and TNF-α in a dose-dependent manner when compared to the untreated group (p<0.05). Conclusion: Results suggest that F1 from C. edule is a bioactive sulfated heteropolysaccharide with anti-inflammatory activity and might be a valuable candidate molecule for the treatment of allergic diseases such as ACD.

Impact of 25 Years of In Vitro Testing in Allergic Contact Dermatitis

1989 ◽  
pp. 569-577 ◽  
Author(s):  
B. M. E. von Blomberg-van der Flier ◽  
D. P. Bruynzeel ◽  
R. J. Scheper
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
In Vitro Testing ◽  
Allergic Contact

scholarly journals Development and Evaluation of Liposomes for Topical Delivery of Tacrolimus (Fk-506)

2010 ◽  
Vol 2 (3) ◽  
pp. 585 ◽  
Author(s):  
S. S. Patel ◽  
M. S. Patel ◽  
S. Salampure ◽  
B. Vishwanath ◽  
N. M. Patel
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Entrapment Efficiency ◽  
Topical Delivery ◽  
Stability Study ◽  
Multilamellar Vesicle ◽  
Cholesterol Ratio ◽  
Acd Model ◽  
Allergic Contact

In the present work Tacrolimus loaded liposomal systems were developed and evaluated for their topical delivery. Neutral multilamellar liposomes (MLVs) were prepared by thin film hydration method. The amount of drug loaded into vesicles ranged from 4.4 mg per 115mg to 8.2mg per 140mg of total lipid. Entrapment efficiency of tacrolimus in liposomes was studied by altering the amount of cholesterol ratio to lipid ratio. After performing stability study at different temperatures (4, 25, and 37°C) was affirms that drug leakage increased at higher temperature. The in-vitro permeation study shows significant reduced permeation with tacrolimus liposomes compared with free tacrolimus in propylene glycol. The animal study carried out on allergic contact dermatitis (ACD) model in rats showed that 0.03% tacrolimus liposomal gel exhibited similar activity when compared with 0.03% marketed tacrolimus ointment. It is also likely that tacrolimus liposomal gel which leads no visible or palpable residue when applied on skin would be more appealing to patients than conventional ointment. Overall study suggests that tacrolimus can be effectively incorporated in liposomes and can be used for the treatment of atopic dermatitis.  Keywords: Tacrolimus; Multilamellar vesicle; Allergic contact dermatitis.   © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i3.3258               J. Sci. Res. 2 (3), 587-598  (2010) 

Skin application of glutathione and iron sulfate can inhibit elicitation of allergic contact dermatitis from hexavalent chromium

2019 ◽  
Vol 82 (1) ◽  
pp. 45-53
Author(s):  
Tina Lejding ◽  
Malin Engfeldt ◽  
Magnus Bruze ◽  
Marléne Isaksson ◽  
Cecilia Svedman ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Hexavalent Chromium ◽  
Iron Sulfate ◽  
Allergic Contact
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