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antigens

Cultural  
  1. Substances that are foreign to the body and cause the production of antibodies. Toxins, invading bacteria and viruses, and the cells of transplanted organs can all function as antigens.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These vaccines present HR2 peptides, which act as conserved antigens within viral spike proteins.

From Science Daily • Mar. 17, 2026

In cancer immunotherapy, tumor derived molecules called antigens are paired with immune stimulating compounds known as adjuvants.

From Science Daily • Feb. 18, 2026

Illumination with red light is designed to rupture the cell, releasing cancer antigens that may activate the body’s immune system to fight the cancer.

From The Wall Street Journal • Jan. 8, 2026

For those reasons, many doctors recommend men stop getting tested for prostate-cancer-related antigens, through what’s known as a PSA test, around age 70 or 75, depending on the individual’s overall health.

From Los Angeles Times • May 20, 2025

It has recently been learned that the genes for the marking of self by cellular antigens and those for making immunologic responses by antibody formation are closely linked.

From "The Lives of a Cell" by Lewis Thomas

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