Association Between Natural Killer Cell Activity and Colorectal Cancer in High-Risk Subjects Undergoing Colonoscopy
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View abstract on PubMed
Summary
This summary is machine-generated.A blood test measuring natural killer (NK) cell activity can identify colorectal cancer (CRC) with high sensitivity. Low NK cell activity indicates a significantly higher risk of developing CRC.
Area Of Science
- Immunology
- Oncology
- Diagnostic Medicine
Background
- Low natural killer (NK) cell activity is linked to increased cancer risk and observed in colorectal cancer (CRC) patients.
- NK cell activity can be assessed using a simple blood test.
Purpose Of The Study
- To evaluate a blood test for NK cell activity as a tool for identifying CRC.
- To compare NK cell activity levels between individuals with and without CRC.
Main Methods
- A prospective, cross-sectional study involving 872 high-risk individuals undergoing colonoscopy.
- NK cell activity measured via interferon gamma (IFNG) secretion in whole blood samples using ELISA.
- Statistical analysis included Mann-Whitney tests and receiver operating characteristic (ROC) curve analysis.
Main Results
- Individuals with CRC (n=23) showed significantly lower median NK cell activity (86.0 pg IFNG/mL) compared to those without CRC (n=849) (298.1 pg IFNG/mL).
- The NK cell activity test demonstrated 87.0% sensitivity and 99.4% negative predictive value for CRC detection.
- Low NK cell activity was associated with a 10.3-fold increased odds of CRC.
Conclusions
- A whole blood NK cell activity test can effectively identify patients with colorectal cancer.
- This test shows potential for clinical use in assessing CRC risk.
- High sensitivity and negative predictive value suggest its utility in screening high-risk populations.
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