Autoimmunity Flashcards
(37 cards)
Type 2 Autoimmune Conditions are mediated by
IgG specific for determinants of cell surface structures/ECM
Autoimmune (Idiopathic) Thrombocytopenic Purpura
IgG-mediated inhibition of an enzyme responsible for cleavage of vWF
Autoimmune diseases that involve IgE
None
Autoimmune Hemolytic Anemia is caused by
IgG and Igm specific for surface antigens of RBC’s
Bence-Jones Proteins
Cryoglobulins composed only of light chains
Cause of Grave’s Disease
IgG binds to TSH receptor –> Overproduction of thyroid hormone
Cellular mediator of Multiple Sclerosis
Th1 CD4 Effector Cells –> Activate macrophages
Cryoglobulins
Ig’s that become insoluble at reduced temperature
Cyroglobulins are most often produced by patients that have
B cell proliferative disorder (multiple myeloma, etc)
Damage from Goodpasture’s Syndrome
Kidney damage
Dx of Autoimmiune Thrombocytopenic Purpura
Microangioplastic Hemolytic Anemia
Goodpasture’s Syndrome
IgG specific for Type-IV collagen (basement membranes)
Guillan Barre Syndrome
Type 2 AI disease mediated by IgG specific for gangliosides –> Demyelination
IgG binds to TSH receptor –> Overproduction of thyroid hormone
Cause of Grave’s Disease
IgG specific for ACh receptors on muscle cells
Myasthenia Gravis
IgG specific for Desmoglein 1 and 3 –> Loss of cohesion in keratinocytes in epidermis
Pemphigus Vulgaris
IgG specific for Type-IV collagen (basement membranes)
Goodpasture’s Syndrome
IgG-mediated inhibition of an enzyme responsible for cleavage of vWF
Autoimmune (Idiopathic) Thrombocytopenic Purpura
Immune-Complex Diseases
(1) Subacute Bacterial Endocarditis; (2) Mixed Essential Cryoglobulinemia; (3) Systemic Lupus Erythematosus
Inflammatory destruction of vascular endothelial cells of arterioles and SM cells; replacement with collagen and fibrous material
Scleroderma
Meltzer’s Triad
Purpura, Athralgia, Myalgia; Mixed Essential Cryoglobulinemia
Mixed Essential Cryoglobulinemia is a common sequelae to
Infection with Hepatitis C
Myasthenia Gravis
IgG specific for ACh receptors on muscle cells
Organ effected by Addison’s Disease
Adrenal Gland