Immuno Flashcards
Site of B-cell localization and proliferation
Follicle
Underdeveloped in DiGeorge
Paracortex
Site of T-cell differentiation and maturation
Thymus
HLA associated with Hemochromatosis
A3
HLA associated with Addison disease, myasthenia gravis, Graves
disease
B8
HLA associated with Psoriatic arthritis, Ankylosing spondylitis, IBD-associated arthritis, Reactive arthritis
B27
HLA associated with Celiac disease
DQ 2 and 8
HLA associated with Multiple sclerosis, hay fever, SLE, Goodpasture syndrome
DR2
HLA associated withDiabetes mellitus type 1, SLE, Graves disease, Hashimoto thyroiditis, Addison disease
DR3
HLA associated with Rheumatoid arthritis, diabetes mellitus type 1, Addison disease
DR4
IPEX
(Immune dysregulation, Polyendocrinopathy, Enteropathy, X-linked) syndrome
-Genetic deficiency of FOXP3 (defective Regulatory T cells) autoimmunity
Characterized by enteropathy, endocrinopathy, nail dystrophy, dermatitis, and/or other autoimmune dermatologic conditions. Associated with diabetes in male infants
C3 deficiency
↑ risk of severe, recurrent pyogenic sinus and respiratory tract infections: incr susceptibility to T3HS
CD55 deficiency
Also called decay-accelerating factor (DAF) deficiency.
Causes complement-mediated lysis of RBCs and paroxysmal nocturnal hemoglobinuria
T1 HS
Anaphylaxis
Test: skin test or blood test (ELISA) for allergenspecific
IgE
T2 HS
Autoimmune-hemolytic anemia Immune thrombocytopenic purpura Transfusion reactions Hemolytic disease of the newborn Goodpasture syndrome Rheumatic fever Hyperacute transplant rejection Myasthenia gravis Graves disease
T3 HS
SLE
Polyarteritis nodosa
Poststreptococcal glomerulonephritis
T4 HS
Type 1 diabetes mellitus Contact dermatitis (eg, poison ivy, nickel allergy) Graft-versus-host disease PPD
Febrile nonhemolytic transfusion reaction
T2HS
Host antibodies against donor HLA antigens and WBC
Within 1–6 hours
Acute hemolytic transfusion reaction
T2HS Intravascular hemolysis (ABO blood group incompatibility) or extravascular hemolysis (host antibody reaction against foreign antigen on donor RBCs)
Transfusion-related acute lung injury
Donor anti-leukocyte antibodies against recipient neutrophils and pulmonary endothelial cells
Anti-ACh receptor
Myasthenia gravis
Anti-glomerular basement membrane
Goodpasture syndrome
Anti-β2 glycoprotein
Antiphospholipid syndrome
Anticardiolipin, lupus anticoagulant
SLE, antiphospholipid syndrome
Anticentromere
Limited scleroderma (CREST syndrome)