Antigen

Antigen

A foreign substance, usually a protein, that stimulates an immune response when it is ingested, inhaled or comes into contact with the skin or mucous membranes. Examples of antigens are bacteria, viruses or allergens. Antigens stimulate plasma cells to produce antibodies.

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Part of Speech: noun
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Industry/Domain: Health care
Category: Leukemia
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antigen

Biology; Immunology

Any foreign material that is specifically bound by antibody or lymphocytes; also used loosely to describe materials used for immunization. Compare with immunogen.

antigen

Natural environment; Coral reefs

A foreign macromolecule introduced into a host organism that elicits an immune response.

antigen

Medical; Herbal medicine

A substance, usually a protein, that induces the formation of defending antibodies. Example: bacterial toxins, Juniper pollen (in allergies). Auto-immune disorders can occur when ...

antigen

Veterinary health; Veterinary care

A foreign substance that stimulates an immune response.

antigen

Health care; Flu prevention & treatment

Any foreign substance, usually a protein, that stimulates the body's immune system to produce antibodies. (The name antigen reflects its role in stimulating an immune response - ...

congenital leukemia

Health care; Leukemia

The presence of leukemia at the time of birth.

neutrophil

Health care; Leukemia

The principal phagocyte (microbe-eating cell) in the blood. The neutrophil is the main cell that combats infections. Patients with certain blood cancers or patients who have ...

incidence

Health care; Leukemia

The number of newly diagnosed cases for a specific disease or group of diseases during a specific time period, usually a year. When expressed as a rate, it is the number of new ...

stem cell

Health care; Leukemia

These are primitive cells in marrow that are required to make red cells, white cells and platelets (see “hematopoiesis”). Generally, the stem cells are largely found in the marrow ...

performance status

Health care; Leukemia

The performance status semi-quantifies the ability of a patient to perform daily activities. This semi-quantification is very helpful in clinical trials in assessing the state of ...

drug therapy

Health care; Leukemia

The use of chemicals (drugs or medications) to kill malignant cells. Numerous chemicals have been developed for this purpose, and most act to injure the DNA of the cancer cells. ...

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