Antibodies Flashcards
SLE autoantibodies
ANA
anti-dsDNA - always
anti-ENA (Ro, La, Sm, RNP, histone) - sometimes
Types of ANA
- anti-dsDNA
- anti-ENA (anti-Ro, anti-La, anti-Sm, anti-RNP, anti-SCL70, anti-centromere)
- anti-cytoplasmic (anti-SRP, anti-Jo1)
Types of ANCA
cANCA
pANCA
anti-dsDNA
SLE
anti-cytoplasmic
Myositis
incl. anti-Jo1, anti-SRP
anti-Jo1
Dermatomyositis
ANA
SLE, Sjogren’s, systemic sclerosis (limited CREST + diffuse), dermatomyositis, polymyositis
anti-SRP
Polymyositis
anti-Ro, anti-La
Sjogren’s (50%)
anti-SCL70
anti-topoisomerase
Diffuse systemic sclerosis (diffuse scleroderma)
anti-centromere
Limited systemic sclerosis (limited scleroderma) - CREST
pANCA
anti-myeloperoxidase
Microscopic polyangiitis
Eosinophilic granulomatosis with polyangiitis (CS)
cANCA
anti-proteinase3
Granulomatosis with polyangitis (Wegener’s)
anti-desmoglein 1
Pemphigus foliaceus
anti-desmoglein 3
Pemphigus vulgaris