Recent Examples of antigen from the Web
Alternatively, the antigens could be provided from outside.
The chimeric antigen receptor, or CAR-T, treatments extract a cancer patient’s own immune system cells, genetically engineer them into cancer-fighting machines and then inject them back into the body.
Both are chimeric antigen receptor T-cell therapies, or CAR-Ts, which reprogram the body’s own immune cells to recognize and attack malignant cells.
The treatment is known as chimeric antigen receptor (CAR)-T cell therapy.
The new treatment involves removing immune cells called T cells from a patient’s blood and giving them a gene for a protein called a chimeric antigen receptor, or CAR, that directs the T cells to target leukemia cells.
The new feature that gives the engineered T cells their cancer-fighting powers is called a chimeric antigen receptor, hence the name Car-T therapy.
Those still represent a major challenge for this type of treatment: Solid tumors express different antigens on their surface than blood cancers.
For decades since the 1980s, doctors have recommended that men start to get an annual blood test that can detect possible signs of growing tumors: one for the prostate specific antigen (PSA).
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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.
Origin and Etymology of antigen
First Known Use: 1908See Words from the same year
ANTIGEN Defined for English Language Learners
medical Definition of antigen
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