The Initial Cellular Events That Are Induced by Antigen-Mediated Cross-Linking

question 17

Multiple Choice

The initial cellular events that are induced by antigen-mediated cross-linking of the B cell receptor (BCR) complex include all of the following EXCEPT:

• A)Increased percentage of time spent in mitosis,resulting in rapid proliferation
• B)Increased expression of B7,resulting in enhanced APC function
• C)Increased expression of bcl-2,resulting in improved survival
• D)Increased expression of CCR7,promoting migration into lymph node follicles
• E)Increased expression of the interleukin-2 receptor,resulting in enhanced proliferation and response to T cell signals

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Definitions:

Blood Pressure

The force of circulating blood on the walls of blood vessels, often measured as an indicator of cardiovascular health.

Cellular Immunity

One of the three general categories of immune response, based on the action of a class of blood cells called T-lymphocytes. The “T” designation refers to the locus of their production, the thymus gland. Cellular immunity results from a cascade of actions of various types of T-lymphocytes.

Monocytes

A type of white blood cell that plays a critical role in the immune system by killing pathogens, removing dead cells, and stimulating the action of other immune cells.