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When bacteria enter a flesh wound, a B cell releases antibodies, which attach to the bacteria and direct them toward a macrophage for destruction.


n. pl. an·ti·bod·ies
Any of numerous Y-shaped glycoproteins that bind to specific antigens and either neutralize them or cause them to be destroyed by other elements of the immune system, such as phagocytes, cytotoxic cells, or complement proteins. Antibodies occur as antigen receptors on the surface of B cells and are secreted as soluble proteins when the B cells mature into plasma cells. Antibodies are also called "immunoglobulins."

[Translation of German Antikörper : anti-, antagonistic (from Latin anti-, anti-) + Körper, body.]


Substances produced by the body and giving immunity against specific antigens.
References in periodicals archive ?
Once identified, these may then be further improved using the company's highly efficient process for fine-tuning of antibodies and other proteins to increase their activity, called EvoGene(TM) Optimisation.
The objectives of this study were to assess the seroprevalence of antibodies to CHIKV in a sample of pregnant women and the kinetics of transplacentally transferred antibodies to CHIKV.
After a few weeks, a worker collects an injected animal's blood and removes the blood cells to isolate the serum, which is swimming with antibodies against the venom.
Subsequently, Kirin and Hematech have progressed to developing cows that can efficiently produce human antibodies.
Because immunologic tolerance is incomplete, it is not unexpected that IgG antibodies specific for food proteins are found in normal subjects with no signs or symptoms of food allergy (Barnes 1995; Barnes et al.
She agrees with her colleagues that most antibodies against HIV are not effective.
Traditional methods of making antibodies to proteins require that the protein of interest be produced and purified in relatively large quantities prior to injection for antibody production.
Thus, typical HA-specific antibodies neutralize viral infectivity and fully protect against infection when they are present at sufficient concentration in the lining fluid of the respiratory tract, and typical NA-specific antibodies inhibit the release of newly formed virus from infected host cells and thus limit the spread and shedding of virus during infection.
That's how monoclonal antibodies--as well as polyelonal antibodies, which target multiple surface proteins--can knock out some immune cells to prevent rejection of transplanted tissues.
Monoclonal antibodies to the S protein neutralize the virus and have been mapped (11-14).

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