Immunology Chap 2

An immunoglobulin which will bind with the antigen against which it was directed.

Any molecule capable of producing an immune response.

Cells that process antigen and display a fragment on the cell surface in association with the MHC (major histocompatibility complex).

Pre-programmed cell death or cell suicide.

Soluble proteins that regulate immune responses.

One of the antigen presenting cells (APC) capable of displaying an antigen on its surface in conjunction with the MHC (major histocompatibility complex).

A specific region of an antigen that is recognized by B cells or T cells.

Any substance capable of generating an immune response.

The more precise name for the proteins called antibodies, which migrate in the gamma globulin region in a protein electrophoresis.

Cytokines that play a role in the immune system's response to viruses.

Cytokines that stimulate, promote and otherwise modulate different cells and other components of the immune system.

A monocyte that is one of two cells capable of phagocytosis and usually resides in tissues.

Cells of the innate immune system that destroy virally infected cells and some tumor cells.

The process of removing T cells that overreact against host antigens, and, as a result, will undergo apoptosis in the thymus.

A molecule that attaches to a microbe or other antigen to facilitate its recognition by phagocytic cells.

The attachment process of an opsonin to an antigen.

The process by which antigens are engulfed and destroyed.

Membrane-bound vacuoles which contain the phagocytized cells or particles.

Elimination of T cells in the thymus which do not have the capability to recognize foreign antigens, and which undergo apoptosis as a result.

Any mature T lymphocyte that is positive for the CD4 marker (i.e., a CD4+ cell), and includes Th1 and Th2 cells.