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Chromium(VI) Contact Dermatitis: Getting Closer to Understanding the Underlying Mechanisms of Toxicity and Sensitization!  Jeroen Buters, Tilo Biedermann 

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Presentation on theme: "Chromium(VI) Contact Dermatitis: Getting Closer to Understanding the Underlying Mechanisms of Toxicity and Sensitization!  Jeroen Buters, Tilo Biedermann "— Presentation transcript:

1 Chromium(VI) Contact Dermatitis: Getting Closer to Understanding the Underlying Mechanisms of Toxicity and Sensitization!  Jeroen Buters, Tilo Biedermann  Journal of Investigative Dermatology  Volume 137, Issue 2, Pages (February 2017) DOI: /j.jid Copyright © 2016 The Authors Terms and Conditions

2 Figure 1 Schematic representation of the mode of action of chromium allergic sensitivity. Chromium(VI) penetrates the skin, and chromium(III) penetrates much less. In the skin, chromium(VI) is reduced by antioxidants such as glutathione to chromium(III). Chromium(III) is the hapten that intercallates with proteins to form complete allergen(s). At the same time, chromium(VI) leads to accumulation of reactive oxygen species (ROS) as shown for monocytes. ROS, via K+ efflux, activate the NRLP3 inflammasome, resulting in IL-1β processing and release, potentially activating antigen presenting cells that process the allergen, which activate chromium-specific T cells, all resulting in the chromium hypersensitivity. Journal of Investigative Dermatology  , DOI: ( /j.jid ) Copyright © 2016 The Authors Terms and Conditions


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