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IgG autoantibodies from a lichen planus pemphigoides patient recognize the NC16A domain of the bullous pemphigoid antigen 180
- Source :
- Dermatology (Basel, Switzerland). 199(3)
- Publication Year :
- 1999
-
Abstract
- Lichen planus pemphigoides (LPP) most likely encompasses a heterogeneous group of subepidermal autoimmune blistering disorders occurring in association with lichen planus. We describe the case of a 49-year-old patient with features characteristic of LPP. Direct immunofluorescence microscopy studies demonstrated linear deposits of C3 along the cutaneous basement membrane, while circulating IgG autoantibodies directed against the epidermal side of skin separated by 1 M NaCl were detected. The patient’s serum contained IgG autoantibodies immunoblotting a recombinant form of bullous pemphigoid antigen 180 (BP180), but not the COOH-terminus of BP230. By using deletion mutants, it was found that IgG reactivity was restricted to the NC16A domain of BP180, the region harboring the major antigenic sites targeted by IgG autoantibodies from patients with the bullous pemphigoid group of disorders. Our findings provide support to the idea that a subset of patients with LPP have a distinct form of bullous pemphigoid associated with lichen planus.
- Subjects :
- medicine.medical_specialty
Dystonin
Nerve Tissue Proteins
Dermatology
Autoantigens
Epitopes
Bullous Pemphigoid Antigen
Immunopathology
Pemphigoid, Bullous
medicine
Animals
Humans
Autoantibodies
Autoimmune disease
Heterogeneous group
biology
Autoantibody
Lichen Planus
Middle Aged
Non-Fibrillar Collagens
medicine.disease
Lichen planus pemphigoides
Cytoskeletal Proteins
Immunoglobulin G
Immunology
COS Cells
biology.protein
Female
Bullous pemphigoid
Antibody
Carrier Proteins
Subjects
Details
- ISSN :
- 10188665
- Volume :
- 199
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Dermatology (Basel, Switzerland)
- Accession number :
- edsair.doi.dedup.....5eb3073f9f670716a052db3b3843618a