antigen


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an·ti·gen

 (ăn′tĭ-jən) also an·ti·gene (-jēn′)
n.
A molecule that is capable of binding to an antibody or to an antigen receptor on a T cell, especially one that induces an immune response. An antigen is usually a foreign substance, such as a toxin or a component of a virus, bacterium, or parasite.

an′ti·gen′ic (-jĕn′ĭk) adj.
an′ti·gen′i·cal·ly adv.
an′ti·ge·nic′i·ty (-jə-nĭs′ĭ-tē) n.

antigen

(ˈæntɪdʒən; -ˌdʒɛn) or

antigene

n
(Biochemistry) a substance that stimulates the production of antibodies
[C20: from anti(body) + -gen]
ˌantiˈgenic adj
ˌantiˈgenically adv

an•ti•gen

(ˈæn tɪ dʒən, -ˌdʒɛn)

n.
1. any substance that can stimulate the production of antibodies and combine specifically with them.
2. any commercial substance that, when injected or absorbed into animal tissues, stimulates the production of antibodies.
3. antigens of a particular type collectively.
[1905–10; anti (body) + -gen]
an`ti•gen′ic, adj.
an`ti•gen′i•cal•ly, adv.
an`ti•ge•nic′i•ty (-dʒəˈnɪs ɪ ti) n.

an·ti·gen

(ăn′tĭ-jən)
A substance that stimulates the production of an antibody when introduced into the body. Antigens include toxins, bacteria, viruses, and other foreign substances. See Note at blood type.

antigen

A molecule recognized as foreign by the body’s immune system, causing the release of antibodies.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
substance - a particular kind or species of matter with uniform properties; "shigella is one of the most toxic substances known to man"
immunizing agent, immunogen - any substance or organism that provokes an immune response (produces immunity) when introduced into the body
immunology - the branch of medical science that studies the body's immune system
agglutinogen - any substance that acts as an antigen to cause agglutinin production
fetoprotein, foetoprotein - any of several antigens that occur naturally in the fetus and sometimes in adults with cancer
anatoxin, toxoid - a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin; "diphtheria toxoid"
antigenic determinant, epitope, determinant - the site on the surface of an antigen molecule to which an antibody attaches itself
Rh, Rh factor, rhesus factor - a blood group antigen possessed by Rh-positive people; if an Rh-negative person receives a blood transfusion from an Rh-positive person it can result in hemolysis and anemia
Translations
antigen
antigeeni
antigén
antígeno
antigen
antigen

antigen

[ˈæntɪdʒən] Nantígeno m

antigen

[ˈæntɪdʒən] nantigène manti-hero antihero [ˈæntihɪərəʊ] nantihéros m

antigen

nAntigen nt

antigen

[ˈæntɪdʒən] nantigene m

an·ti·gen

n. antígeno, sustancia tóxica que estimula la formación de anticuerpos;
carcinoembriogenic ______ carcinoembriogénico.

antigen

n antígeno; carcinoembryonic — antígeno carcinoembrionario; prostate-specific — (PSA) antígeno prostático específico (APE)
References in periodicals archive ?
However, tests defining the HA antigen of the virus showed it to be unlike any previously found in humans.
Galenica's GPI-0100 series are safe semi-synthetic derivatives from certain natural saponins which have the capability of stimulating Th 1 immunity with production of antigen-specific cytotoxic T cells (CTL) that will seek out and destroy cells carrying abnormal markers such as viral or tumor antigens.
Those cells package the resulting antigens with MHC proteins and present them to T cells, natural killer cells, and other members of the immune system.
Therefore, based on the promise of heightened immune responses in the presence of viremia in some patients (as measured by these cytokine assays), some thought that perhaps a good strategy to bolster HIV immunity would be to provide an opportunity for small, controlled quantities of HIV to be made--ostensibly to provide antigen and to drive the immune response.
Antigen comes with highly developed tools for file filtering and worm virus protection, and provides users with multiple engines for virus scanning, including leading technologies from Network Associates, Sophos, Computer Associates, Norman Data Defense, and Kaspersky.
Once an antigen locks onto a cell surface receptor, like M onto W--or, more accurately, like a key fitting into a key hole, because the shapes are quite intricate--the cell's system starts to cook.
Vials containing beta-glucuronidase and antigen mixes are manufactured in England by McEwen Laboratories, Ltd.
However, newborn mice injected with an adjuvant that included only the antigen, Lehmann said, developed a Th2 reaction, which is not inflammatory and is able to protect from disease.
As a result of the increasing switch from live-attenuated and killed whole-cell vaccines to subunit antigens, there is a need for novel antigen delivery technologies to improve vaccine efficacy and safety.
In the study, all participants receiving the Cancer Vac immunotherapy generated immune responses that recognized the MUC 1 cancer antigen, with the treatment being well tolerated by all patients.
Increasing concentrations of metal ions, antigen (DNP-HSA), or a combination of both were added in a final volume of 0.