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Published on: April 21, 2015
Chronic Proliferative Dermatitis in Mice: NFκB Activation Autoinflammatory Disease
1Department of Dermatology, Yale University School of Medicine, 15 York Street, New Haven, CT 06510, USA.
SHARPIN deficient mice exhibit chronic inflammation and epidermal changes, validating the proliferation-inflammation-apoptosis triad in this autoinflammatory disease model. This research offers insights into NFκB activation in congenital inflammatory disorders.
Area of Science:
- Immunology
- Dermatology
- Genetics
Background:
- Autoinflammatory diseases involve recurrent inflammation without infection or autoimmunity.
- SHARPIN deficiency in mice (Sharpin(cpdm)) causes multiorgan inflammation and distinct skin phenotypes.
Purpose of the Study:
- To investigate the pathological mechanisms in SHARPIN deficient mice.
- To validate the proliferation-inflammation-apoptosis triad in Sharpin(cpdm) mice.
Main Methods:
- Histological analysis of skin and organs.
- Immunohistochemistry for keratin and alpha smooth muscle actin.
- Flow cytometry (FACS) and TUNEL assay for apoptosis detection.
Main Results:
- Sharpin(cpdm) mice show epidermal hyperproliferation, Th-2 inflammation, and keratinocyte apoptosis.
- Decreased mobility, growth, and body weight were observed.
- Increased alpha smooth muscle actin in skin vessels and aggregation of immune cells (eosinophils, mast cells) in the skin.
Conclusions:
- The study validates the proliferation-inflammation-apoptosis triad in Sharpin(cpdm) mice.
- These findings highlight the role of NFκB activation in this autoinflammatory disease model.
- Provides evidence for SHARPIN's role in regulating inflammation and epidermal homeostasis.
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