Recent Examples of antigen from the Web
The Western Blot test measures your body’s antibody response to Borrelia antigens.
The team also took blood samples for testing by two conventional and quicker methods: examination under a microscope or screening for antigens with a rapid diagnostic test.
Their immune systems can react against blood cells that are marked with certain antigens — surface proteins.
Other immune therapies under development include vaccines to amp up the immune system, and an approach called CAR-T, for chimeric antigen receptor T cell.
The first is a combination investigational antibody and drug that targets a protein called B-cell maturation antigen, or BCMA.
These treatments include the checkpoint inhibitors Keytruda and Opdivo, CAR-T drugs such as Yescarta and Kymriah, and neo-antigen vaccines.
The second type of immunotherapy, used mostly with blood cancers, involves chimeric antigen receptor (CAR) T-cell therapy.
As part of the monitoring of his cancer, Howard gets PSA (prostate-antigen specific) tests twice a year and biopsies every other year.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antigen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
An antibody is a protein produced by your immune system to fight outside invaders. Since the enemy substance actually triggers the production of antibodies, such substances are called antigens—anti- being short for antibody, and -gen meaning "producer". (In a similar way, an allergen produces an allergy, and a pathogen produces a pathology or disease.) Antigens are often rodlike structures that stick out from the surface of an invading organism—usually a bacterium or a virus—and allow it to attach itself to cells in the invaded body. But unfortunately for them, in doing so they let the immune system know they're present, and the body is flooded with an army of Pac-Man-like antibodies.
ANTIGEN Defined for English Language Learners
Definition of antigen for English Language Learners
medical : a harmful substance that causes the body to produce antibodies
medical Definition of antigen
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