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Preparation of Single-cell Suspensions for Cytofluorimetric Analysis from Different Mouse Skin Regions
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Lipid-specific T cells and the skin
1MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, NIHR Biomedical Research Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, U.K.
The British Journal of Dermatology
|September 27, 2016
Summary
Skin inflammation involves CD1a molecules presenting lipids generated by house dust mite and insect venoms. This newly discovered pathway offers potential therapeutic targets for inflammatory skin conditions.
Area of Science:
- Immunology
- Dermatology
- Allergy Research
Background:
- Langerhans cells present lipid antigens via CD1a molecules, but their role in inflammatory skin disease is understudied.
- Research traditionally focuses on T cells recognizing peptide antigens presented by HLA molecules.
Approach:
- Investigated CD1a reactivity to house dust mite and venom extracts.
- Identified phospholipases in venoms as the source of CD1a-reactive lipids generated in situ.
- Linked this lipid antigen presentation pathway to T cell activation and skin inflammation.
Key Points:
- House dust mite and insect venoms induce CD1a reactivity.
- Phospholipases in venoms generate antigenic lipids upon skin contact.
- These lipids activate T cells via CD1a on Langerhans cells, contributing to skin inflammation.
Conclusions:
- A novel pathway for CD1a-mediated skin inflammation triggered by venom-derived lipids has been identified.
- This pathway presents new therapeutic targets for inflammatory skin diseases.
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