antigen

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.

In a Phase 1 trial, 14 of 17 patients showed at least a 50% reduction in prostate-specific antigen, or PSA, a protein that indicates the presence of prostate cancer at elevated levels.

From Barron's • Feb. 24, 2026

The version that presented the antigen on the surface attached via its N-terminus produced the strongest immune reaction.

From Science Daily • Feb. 18, 2026

That antigen was inserted into a harmless, non-replicating adenovirus, which serves as a delivery system for the vaccine.

From Science Daily • Feb. 4, 2026

But advanced prostate cancer has increased in recent years as fewer men receive prostate-specific antigen tests.

From The Wall Street Journal • Jan. 14, 2026

When the connection is made, and a particular lymphocyte with a particular receptor is brought into the presence of the particular antigen, one of the greatest small spectacles in nature occurs.

From "The Lives of a Cell" by Lewis Thomas