Diseases of the immune System Flashcards
Anaphylaxis, allergies, and bronchial asthma are examples of what type of hypersensitivity?
Immediate (Type I) Hypersensitivity
This type of hypersensitivity is due to Th2 cells, IgE antibodies, and mast cells.
Immediate (Type I) Hypersensitivity
Type II Hypersensitivity is also called _____
Antibody Mediated
Good Pasture Syndrome, and Autoimmune Hemolytic Anemia is an example of what type of hypersensitivity?
Antibody Mediated (Type II)
Type III hypersensitivity is also known as _____
Immune Complex Mediated Hypersensitivity
SLE, and Serum Sickness are examples of what type of hypersensitivity?
Immune Complex Mediated (Type III)
Type IV Hypersensitivity is also known as ______
Cell Mediated Hypersensitivity
Contact Dermatitis is an example of what type of hypersensitivity?
Cell Mediated (Type IV) Hypersensitivity
Dendritic cells within in the epidermis are called _____
Langerhans Cells
The genes encoding for human leukocyte antigens (HLA) are located on what chromosome?
Chromosome 6
In Myasthenia Gravis antibodies are directed against ________
Acetylcholine Receptor
In Goodpasture Syndrome antibodies are directed against _______
Basement Membrane of Lung and Kidney
In Pernicious Anemia, antibodies are directed against ____
Intrinsic factor of gastric parietal cells
Patients with this type of antibody may develop venous and arterial thrombosis and may be associated with recurrent miscarriages.
Antiphospholipid Antibody
What auto antibodies are commonly seen in patients with Sjögren Syndrome?
SS-A (Ro) and SS-B (La)
This antibody is both specific for SLE and may indicate nephritis.
Double-Stranded DNA Autoantibody
Most common and severe form of lupus nephritis.
Diffuse lupus nephritis (Class IV)
Keywords: Wire loop structure on light microscopy of the kidney. (Circumferential thickening of capillary wall)
Lupus Nephritis (Diffuse lupus nephritis or class IV)
Keywords: Butterfly Rash (erythema along the cheeks, and bridge of the nose)
SLE
Nonbacterial verrucas endocarditis seen in patients with SLE.
Libman-Sacks Endocarditis
Most common cause of death in patients with SLE
Renal Failure
Drugs that can cause lupus like symptoms.
Hydralazine, procainamide, isoniazid, D penicillamine
In patients with drug induced lupus, what antibodies are commonly found?
Antihistone Antibody
Chronic disease characterized by dry eyes, and dry mouth resulting from immune mediated destruction of lacrimal and salivary glands.
Sjögren Syndrome
Most common auto immune disease associated with Sjögren Syndrome.
Rheumatoid Arthritis
Patients with Sjögren Syndrome are at increased risked for developing what malignancy?
B-Cell Lymphoma
What is believed to be the initiating trigger for developing Sjögren Syndrome?
Viral Infection of The Salivary Gland which causes cell death and release of self tissue antigens.
CREST syndrome consists of _____
Calcinosis, Raynaud Phenomenon, Esophagal Dysmotility, Sclerodactyly, and Telangiectasia.
Peak age of incidence in patients with Scleroderma
50-60
Episodic vasoconstriction of the arteries and arteriolar of the extremities commonly seen in patients with scleroderma.
Raynaud Phenomenon
The most ominous manifestation of Scleroderma
Malignant Hypertension which may cause fatal renal failure
Major cause of death in patients with systemic sclerosis.
Pulmonary Disease
The two antinuclear antibodies strongly associated with systemic sclerosis.
Anti DNA tropoisomerase I, and Anticentrimere Antibody
Graft exchanged from one species to another is called_____
Xenografts
An autosomal recessive condition characterized by defective fusion of phagosomes and lysosomes.
Chédiak-Higashi Syndrome
This disorder is characterized by the failure of B-precursors to develop into mature B cells.
Bruton Agammaglobulimia (X-Linked Agammaglobuoinemia)
Major antibody found in mucosal linings and external secretions
IgA
An X-linked disease characterized by thrombocytopenia, eczema and vulnerability to recurrent infection resulting to early death.
Wiskott-Aldrich Syndrome
Wiskott-Aldrich Syndrome is caused by a mutation in what gene and on what chromosome?
Wiskott-Aldrich Syndrome Protien (WASP) on chromosome Xp11.23
Globally what is the most common mode by which HIV is spread?
Heterosexual Contact
HIV belongs to what family of viruses?
Lentivirus
What HIV antigen is the most abundant and widely used to diagnose HIV infection?
p24
What is the hallmark of AIDS?
Profound immune deficiency primarily affecting cell mediated immunity
What is the most common neoplasm in patients with AIDS?
Kaposi Sarcoma
What histochemical technique is commonly used to differentiate amyloid from other hyaline materials?
Congo Red
Type I hypersensitivity is also known as _____
Immediate Hypersensitivity
This is a constellation of genetically distinct syndromes all having the common defect in both humoral and cell mediated immune response.
Severe Combined Immunodeficiency
Most common form of Severe Combined Immunodeficiency (SICD)
X-Linked SCID
What interleukin is important for the maturation of NK Cells?
IL-15
The most common form of autosomal dominant SCID is due to a deficiency in what enzyme?
Adenosine deaminase (ADA)
What is the first disease in which gene therapy was successful?
X-Linked Severe Combined Immunodeficiency
This branch of adaptive immunity protects against against extra cellular microbes and toxins.
Humoral Immunity
This branch of adaptive immunity is responsible for defense against intercellular microbes.
Cell Mediated
This population of T cells will stimulate B lymphocytes to make antibodies and activate other leukocytes.
Helper T Lymphocytes
This T-Cell limits the immune response.
Regulatory T Lymphocytes
The function of this cell is to destroy irreversibly stressed an abnormal cells such as tumor and virus infected cells.
Natural Killer Cells
In this disorder patients make IgM antibodies but are deficient in their ability to make IgG, IgA, and IgE antibodies.
Hyper IgM Syndrome
What is the patholophysology of Hyper IgM Syndrome?
Decreased ability of helper T-Cells to deliver activating signals to B-Bells and macrophages.
The X-linked dominant form of Hyper IgM Syndrome is due to a mutation on the gene encoding _____
CD40L
What is the most common complement protein deficiency?
C2 Deficiency
A deficiency in C1 inhibitor (C1 INH) of the complement system gives rise to what condition?
Hereditary Angioedema
Deficiency in the components making the membrane attack complex leads to increase susceptibility to what bacteria?
Neisseria