Antigen Là Gì

     
a substance that causes the body"s immune system (= the system for fighting infections) to react, especially by producing antibodies (= proteins that attack harmful bacteria, viruses, etc.)


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Immunoblot analysis has revealed striking specificity of antigen components in the 3 sandfly species studied.
Liposomes are lipid membrane particles that serve as vehicles or delivery systems for vaccine antigens.
Subsequent experiments were performed using standard methods plus antigen recovery because this enhances the unique of the immunolabelling.
Determining the paternal antigen status through a peripheral blood assay is an important step, which should be undertaken early in the pregnancy.
lớn some extent, the difference between the types of antigen used makes a fair comparison between results difficult.
As tumour growth progresses, parts of the tumour can become necrotic & soluble t u m o u r antigens are released.
The major challenge in the development of antischistosome vaccines is lớn use defined antigens to stimulate an appropriate immune response that leads khổng lồ resistance.


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It must be borne in mind always that the efficacy of a vaccine depends on more than the primary amino acid sequence of the antigen.
Conversely, antibody production is controlled by the probability of antibodies (or antibody-producing cells) encountering bacteria (or being presented with antigens derived from these pathogens).
If the participation of the former type of antibody were predominant or exclusive, sera would show similar reactivities against all antigens.
Furthermore, the preparation of carbohydrate antigen still depends on extraction from crude antigens.
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