Pathophysiological Study of Allergic Contact Dermatitis to Para-Phenylenediamine (PPD). Analysis of Cellular and Molecular Targets in Skin Inflammation
NCT00445029 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 36
Last updated 2007-10-04
Summary
The current knowledge of the pathophysiology of allergic contact dermatitis is based on the murine model. In this model, CD8+ T cells are effector cells, and CD4+ T cells regulate the response by limiting the expansion of CD8+ T cells. The goal of this study is to characterize the pathophysiology of contact dermatitis, with patients allergic to para-phenylenediamine (PPD).
We suppose that the CD8+ T cells are the effectors of the allergic contact dermatitis, although the regulator cells belong to the LT CD4+ population. We will test our hypothesis on blood samples, and cutaneous biopsies of patients allergic to PPD.
Conditions
- Allergic Contact Dermatitis
Sponsors & Collaborators
-
Hospices Civils de Lyon
lead OTHER
Principal Investigators
-
Jean-François Nicolas, MD · Hospices Civils de Lyon
Eligibility
- Min Age
- 18 Years
- Max Age
- 65 Years
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2007-03-31
Countries
- France
Study Locations
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