The Land of MHC
Flow Cytometry
Antigens
Don't Be So Sensitive
Diseases
Serology 102
100
MHC Class II molecules bind to this kind of peptide

What is a processed exogenous peptide?

100

An intrinsic parameter that can be measured by a flow cytometer

What is granularity?

100

An antigenic determinant site produced by the folding of primary chain is called this

What is an epitope?

100

This type of hypersensitivity includes the reaction to poison ivy

What is Type IV Hypersensitivity?

100
This laboratory finding is associated with Multiple Sclerosis

What is several bands on electrophoresis of CSF?

100

In immunofixation electrophoresis, antibody is applied here

What is the top surface of the gel?

200

MHC molecules containing beta-2-microglobulin are determined by this

What are MHC-A, MHC-B, and MHC-C?

200

"Gating" is known as this

What is an electronic window separating sub-populations of cells?

200

Antigens found in different species that trigger a similar antibody response are called this

What are heterophile antigens?

200

Hypersensitivities to poison ivy and nickel are caused by this

What are macrophages that respond to haptens and T cells?

200

Systemic Lupus Erythematosus is characterized by the presence of this

What is anti ds-DNA?

200

For a passive agglutination test, these molecules are artificially bound to particles

What are antigen molecules?

300

A processed antigen first encounters and binds to MHC class II molecules in this compartment

What is the endosomal compartment?

300

Light signal in flow cytometry that could be used to provide information about the expression of a protein on the outer surface of a cell membrane

What is a red light emitted by phycoerythrin?

300

The ability to respond to antigen depends on these three factors

What are age, nutrition, and genetic predisposition?

300

This is an example of a condition involving a Type III hypersensitivity

What is Rheumatoid Arthritis?

300

Hashimoto's thyroiditis can best be differentiated from Grave's disease on the basis of this

What is a decreased thyroid hormone level?

300

A particle-counting immunoassay method counts the number of these

What are free latex particles?

400

Endogenous peptides binding to MHC-A,B, and C molecules on the surface of hepatocytes are critical for the response by these cells

What are cytotoxic T cells?

400

A fluorescent signal in flow cytometry is generated by these

What are fluorochromes that absorb energy from a laser beam and then release the energy as longer wavelength slides?

400

Characteristics of heterophile antigens is that they are found here

What is on unrelated plants and animals but cross react with some antibodies?

400
This occurs in hemolytic disease of the newborn

What is an Rh- mother is exposed to an Rh+ baby?

400

Antibodies to cyclic citrullinated proteins (anti-CCP) are specific diagnostic indicators for this disease

What is Rheumatoid Arthritis?

400

In a reverse agglutination test, this molecule is attached to a particle

What is an antibody?

500

MHC class I antigens are recognized by these cells

What are CD8+ T-Cells?

500

Fluorescently labeled antibodies are used in flow cytometry to determine this

What are proteins associated within a cell?

500

A plasma cell differs from a B-cell this way

What is only plasma cells secrete circulating antibodies?

500

Complement is responsible for tissue damage in this type of reaction

What is a Type III hypersensitivity?

500

This is associated with DiGeorge syndrome

What is a small or missing thymus?

500

If an Ouchterlony immunodiffusion pattern shows an arc equidistant between antigens A and B, this indicates that the antigens are this

What are identical?

600

The acute-phase protein haptoglobin binds to this

What is hemoglobin?

600

Fluorescence in flow cytometry are usually used to determine these parameters

What are extrinsic cell parameters?

600

Toll-like receptors bind to this

What is a pathogen associated molecular pattern?

600

This newly synthesized mediator has a mode of action similar to that of histamine

What is Heparin?

600

Leukocyte Adhesion Deficiency is caused by a defect in this

What is a defect in CD18?

600

A speckled nuclear pattern in an antinuclear antibody test indicate this

What is an antibody to an extractible nuclear antigen (ENA)?