immunology Immunology is a branch of biology and medicine that covers the study of Immune system, immune systems in all Organism, organisms. Immunology charts, measures, and contextualizes the Physiology, physiological functioning of the immune system in ...

, the term sensitization is used for the following concepts:Anderson DM, ed. (2003). "Sensitization." ''

Dorland's Illustrated Medical Dictionary ''Dorland's'' is the brand name of a family of medical reference works (including dictionaries, spellers and word books, and spell-check software) in various media spanning printed books, CD-ROMs, and online content. The flagship products are ''Do ...

'', 30th ed. Philadelphia: Saunders, p. 1680. .Brown MJ, ed. (1992). "Sensitization." ''

Miller-Keane Encyclopedia & Dictionary of Medicine, Nursing, and Allied Health The ''Miller-Keane Encyclopedia & Dictionary of Medicine, Nursing, and Allied Health'' is written for use by students and health care providers including medics, nurses, and paramedics. The entries are alphabetical and compiled with multidisciplina ...

'', 5th ed. Philadelphia; London: Saunders, p. 1352. .Pugh MB, ed. (2000). "Sensitization." ''

Stedman's Medical Dictionary ''Stedman's Medical Dictionary'' is a medical dictionary developed for medical students, physicians, researchers, and medical language specialists. Entries include medical terms, abbreviations, acronyms, measurements, and more. Pronunciation and ...

'', 27th ed. Philadelphia: Lippincott Williams and Wilkins, p. 1619. .Tada T, Taniguchi M, Okumura Y, Miyasaka M, eds. (1993). "Sensitization." ''Dictionary of Terms in Immunology'', 3rd ed. Osaka: Saishin-Igakusha, Ltd., p. 510. C3547 (in Japanese). *

Immunization Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent (known as the antigen, immunogen). When this system is exposed to molecules that are foreign to the body, called ' ...

by inducing an adaptive response in the immune system. In this sense, sensitization is the term more often in usage for induction of

allergic response An allergic response is a hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in everyone. An allergic response may cause harmful symptoms such as itching or inflammation or tissue inju ...

s.Janeway C, Travers P, Walport M, Shlomchik M, eds. (2001). ''Immunobiology 5: The Immune System in Health and Disease.'' New York: Garland Pub., * To bind antibodies to cells such as

erythrocytes Red blood cells (RBCs), referred to as erythrocytes (, with -''cyte'' translated as 'cell' in modern usage) in academia and medical publishing, also known as red cells, erythroid cells, and rarely haematids, are the most common type of blood cel ...

in advance of performing an immunological test such as a

complement-fixation test The complement fixation test is an immunological medical test that can be used to detect the presence of either specific antibody or specific antigen in a patient's serum, based on whether complement fixation occurs. It was widely used to diagno ...

or a

Coombs test The direct and indirect Coombs tests, also known as antiglobulin test (AGT), are blood tests used in immunohematology. The direct Coombs test detects antibodies that are stuck to the surface of the red blood cells. Since these antibodies sometimes ...

. The antibodies are bound to the cells in their

Fab regions The fragment antigen-binding region (Fab region) is a region on an antibody that binds to antigens. It is composed of one constant and one variable domain of each of the heavy and the light chain. The variable domain contains the paratope (the a ...

in the preparation. * To bind antibodies or soluble antigens chemically or by adsorption to appropriate biological entities such as erythrocytes or particles made of

gelatin Gelatin or gelatine () is a translucent, colorless, flavorless food ingredient, commonly derived from collagen taken from animal body parts. It is brittle when dry and rubbery when moist. It may also be referred to as hydrolyzed collagen, coll ...

latex Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well. In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all floweri ...

for passive aggregation tests. Those particles themselves are biologically inactive except for serving as antigens against the primary antibodies or as carriers of the

antigens In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response. An ...

. When antibodies are used in the preparation, they are bound to the erythrocyte or particles in their Fab regions. Thus the step follows requires the secondary antibodies against those primary antibodies, that is, the secondary antibodies must have binding specificity to the primary antibodies including to their Fc regions.

References

{{Reflist Immunology