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Rev. méd. Chile ; 144(4): 508-515, abr. 2016. tab
Article in Spanish | LILACS | ID: lil-787123

ABSTRACT

Background: Hepatocellular carcinoma (HCC) has a high morbidity and mortality. Single nucleotide polymorphisms (SNPs) of microRNA (miRNA) may be associated with the susceptibility to develop certain malignant tumors. Aim: To study the association between SNPs of miRNA and hepatocellular carcinoma in peripheral blood samples. Material and Methods: Three SNPs in miRNA were studied in peripheral blood samples of 498 patients with HCC and 520 controls. Results: A significant association was observed between rs13299349 in miRNA3152 and HCC. AA genotype or A allele were significantly associated with increased risk of HCC. A allele was associated with the size and number of tumor foci. There was also a relationship between rs10061133 in miRNA449b and HCC. The G allele was significantly associated with increased risk of HCC compared with A allele. Conclusions: This study links rs13299349 in miRNA3152 and rs10061133 in miRNA449b with the risk of developing HCC.


Antecedentes: El carcinoma hepatocelular (CHC) tiene una alta morbilidad y mortalidad. Polimorfismos de un nucleótido (SNP) presentes en el microRNA (miRNA) circulante pueden asociarse a ciertos tumores. Objetivo: Estudiar la asociación entre la presencia de SNPs en miRNA circulante y la presencia de carcinoma hepatocelular. Material y Métodos: Se determinó la presencia de tres SNP en microRNA de sangre periférica en 498 pacientes con CHC y 520 controles. Resultados: El SNP rs13299349 en el miRNA3152 se asoció con CHC. El genotipo AA o el alelo A se asociaron con un riesgo mayor de presentar un CHC. El alelo A se asoció además con el tamaño y número de focos del tumor. Se observó también una relación entre el SNP rs10061133 en el miRNA449b y HCC. En este caso, el alelo G se relacionó con un mayor riesgo de CHC. Conclusiones: Los SNP rs13299349 en el miRNA3152 y rs10061133 en el miRNA449b se asocian al riesgo de desarrollar CHC.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Carcinoma, Hepatocellular/genetics , Polymorphism, Single Nucleotide/genetics , MicroRNAs/genetics , Genetic Association Studies/methods , Liver Neoplasms/genetics , Reference Values , Biomarkers, Tumor , Case-Control Studies , Risk Factors , Analysis of Variance , Carcinoma, Hepatocellular/pathology , Genetic Predisposition to Disease , Tumor Burden , Genotyping Techniques , Gene Frequency , Liver Neoplasms/pathology
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