A genome-wide association study identifies single nucleotide polymorphisms associated with time-to-metastasis in colorectal cancer

Autor: Penney, Michelle E., Parfrey, Patrick S., Savas, Sevtap, Yilmaz, Yildiz E.
Rok vydání: 2019
Předmět:
Zdroj: BMC Cancer
BMC Cancer, Vol 19, Iss 1, Pp 1-12 (2019)
ISSN: 1471-2407
Popis: Background Differentiating between cancer patients who will experience metastasis within a short time and who will be long-term survivors without metastasis is a critical aim in healthcare. The microsatellite instability (MSI)-high tumor phenotype is such a differentiator in colorectal cancer, as patients with these tumors are unlikely to experience metastasis. Our aim in this study was to determine if germline genetic variations could further differentiate colorectal cancer patients based on the long-term risk and timing of metastasis. Methods The patient cohort consisted of 379 stage I-III Caucasian colorectal cancer patients with microsatellite stable or MSI-low tumors. We performed univariable analysis on 810,622 common single nucleotide polymorphisms (SNPs) under different genetic models. Depending on the long-term metastasis-free survival probability estimates, we applied a mixture cure model, Cox proportional hazards regression model, or log-rank test. For SNPs reaching Bonferroni-corrected significance (p
Databáze: OpenAIRE
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