What type of study is this?

This is a Validation Study study.

What question did this study set out to answer?

To explore how genetic variation in MICA influences Natural Killer cell activity in early-onset colorectal cancer.

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Analysis reveals genetic variation alters NK cell levels in early-onset colorectal cancer, indicating immune system involvement.

To explore how genetic variation in MICA influences Natural Killer cell activity in early-onset colorectal cancer.
Analyzed genotypes in the target region of chromosome 6 encoding MICA in the CORECT study
Employed RNA-seq and multiplex immunofluorescence techniques to measure NK cells
Evaluated SNP associations with CRC across nearly 40,000 cases and controls
Validated findings with a larger independent cohort of over 76,000 cases and controls.
Identified 5 SNPs in MICA associated with RNA expression differences in colonic epithelium
Found a SNP (rs9295988) linked to increased risk of early-onset colorectal cancer (Odds Ratio = 1.239)
Demonstrated that carriers of the G allele at rs9295988 had reduced NK cell levels in colon cancer compared to normal tissue.

McGee et al. (2026) studied this question.

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