Intermediate
Technical
IVT
T-cell proliferation assay
A functional test measuring T-cell activation and division in response to various stimuli.
Full Definition
T-cell proliferation assays are laboratory tests that evaluate the ability of T lymphocytes to activate, divide, and respond to specific stimuli such as mitogens, antigens, or anti-CD3 antibodies. These assays are crucial in diagnosing and monitoring primary immunodeficiencies, as they can detect functional defects even when T-cell numbers appear normal. The tests typically measure DNA synthesis or cell division markers and help distinguish between different types of T-cell dysfunction in pediatric patients.
Usage
Usage note: Specify the stimulus used (PHA, ConA, anti-CD3) when reporting results.
In Context
- "T-cell proliferation assays revealed severely impaired responses to mitogenic stimulation." — Immunology laboratory report
- "Normal T-cell counts but abnormal proliferation assays suggested a functional rather than quantitative defect." — Clinical interpretation
Also known as
lymphocyte proliferation assay
T-cell stimulation test
Don't confuse with
T-cell cytotoxicity assay
T-cell enumeration