FAQ
Q1. What are Cytotoxic T Cells (CD8+ T Cells)?
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Cytotoxic T cells (CTLs) are a key component of the adaptive immune system and are responsible for identifying and eliminating virus-infected cells and cancer cells.
Q2. What does reduced cytotoxic activity indicate?
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Reduced cytotoxic activity may suggest impaired immune defense, chronic infection, immune exhaustion, or a weakened anti-tumor immune response.
Q3. Does a higher CTL count always mean better immunity?
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Not necessarily. Both the quantity and functional activity of CTLs are important. Comprehensive evaluation of activation, proliferation, and cytotoxic markers is recommended.
Q4. Can this test evaluate immunotherapy effectiveness?
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Yes. Monitoring changes in CTL activity and function can help assess treatment response and support immunotherapy decision-making.
Q5. Is follow-up testing recommended?
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Follow-up testing every 2–3 months is recommended to monitor immune status, treatment response, and disease progression.
Q6. Is there an age requirement for this test?
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No. The test is suitable for both adults and children and can be applied to immune health monitoring across different age groups.