Polymorphism of the pre-miR-146a is associated with risk of cervical cancer in a Chinese population. 2011

Cong Yue, and Meilin Wang, and Bo Ding, and Wei Wang, and Shilong Fu, and Delan Zhou, and Zhengdong Zhang, and Suping Han
Department of Gynecology and Obstetrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.

OBJECTIVE MicroRNAs are tiny non-coding RNAs that reportedly play an important role in numerous physiological processes. A G>C polymorphism (rs2910164) is located on the passenger strand of the precursor of miR-146a, which could alter mature miR-146a expression. We hypothesized that a possible association exists between miR-146a gene polymorphisms and cervical cancer risk in a population-based control study of female residents in Jiangsu Province. METHODS The subjects included 447 cervical cancer cases and 443 cancer-free controls with frequency matched by age. We genotyped the functional polymorphism of miR-146a (rs2910164) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method, and used a sample of 24 cervical cancer tissue to test the expression of miR-146a by real-time quantitative reverse transcription. RESULTS Our study indicated that the subjects carrying GG homozygote had a 1.496-fold increased risk than those carrying CG/CC genotypes (95% CI=1.068-2.095). Moreover, miR-146a quantification showed that the carriers of GG genotype had obviously more reduced miR-146a expression level compared with the carriers of CC genotype. CONCLUSIONS Our study suggests that the risk of cervical cancer in a Chinese population partly results from miRNA-146a expression deviation in vivo, being caused by common polymorphism in miR-146a. This is an initial study to indicate that miR-146a (rs2910164) might contribute to cervical cancer susceptibility.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002583 Uterine Cervical Neoplasms Tumors or cancer of the UTERINE CERVIX. Cancer of Cervix,Cancer of the Cervix,Cancer of the Uterine Cervix,Cervical Cancer,Cervical Neoplasms,Cervix Cancer,Cervix Neoplasms,Neoplasms, Cervical,Neoplasms, Cervix,Uterine Cervical Cancer,Cancer, Cervical,Cancer, Cervix,Cancer, Uterine Cervical,Cervical Cancer, Uterine,Cervical Cancers,Cervical Neoplasm,Cervical Neoplasm, Uterine,Cervix Neoplasm,Neoplasm, Cervix,Neoplasm, Uterine Cervical,Uterine Cervical Cancers,Uterine Cervical Neoplasm
D005260 Female Females
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000367 Age Factors Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time. Age Reporting,Age Factor,Factor, Age,Factors, Age
D016022 Case-Control Studies Comparisons that start with the identification of persons with the disease or outcome of interest and a control (comparison, referent) group without the disease or outcome of interest. The relationship of an attribute is examined by comparing both groups with regard to the frequency or levels of outcome over time. Case-Base Studies,Case-Comparison Studies,Case-Referent Studies,Matched Case-Control Studies,Nested Case-Control Studies,Case Control Studies,Case-Compeer Studies,Case-Referrent Studies,Case Base Studies,Case Comparison Studies,Case Control Study,Case Referent Studies,Case Referrent Studies,Case-Comparison Study,Case-Control Studies, Matched,Case-Control Studies, Nested,Case-Control Study,Case-Control Study, Matched,Case-Control Study, Nested,Case-Referent Study,Case-Referrent Study,Matched Case Control Studies,Matched Case-Control Study,Nested Case Control Studies,Nested Case-Control Study,Studies, Case Control,Studies, Case-Base,Studies, Case-Comparison,Studies, Case-Compeer,Studies, Case-Control,Studies, Case-Referent,Studies, Case-Referrent,Studies, Matched Case-Control,Studies, Nested Case-Control,Study, Case Control,Study, Case-Comparison,Study, Case-Control,Study, Case-Referent,Study, Case-Referrent,Study, Matched Case-Control,Study, Nested Case-Control
D044466 Asian People Persons having origins in any of the Asian racial groups of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. Note that OMB category ASIAN is available for United States population groups. Race and ethnicity terms, as used in the federal government, are self-identified social construct and may include terms outdated and offensive in MeSH to assist users who are interested in retrieving comprehensive search results for studies such as in longitudinal studies. Asian Continental Ancestry Group,Asian Person,Asiatic Race,Mongoloid Race,Asian Peoples,Asian Persons,Asiatic Races,Mongoloid Races,People, Asian,Person, Asian,Race, Asiatic,Race, Mongoloid
D020022 Genetic Predisposition to Disease A latent susceptibility to disease at the genetic level, which may be activated under certain conditions. Genetic Predisposition,Genetic Susceptibility,Predisposition, Genetic,Susceptibility, Genetic,Genetic Predispositions,Genetic Susceptibilities,Predispositions, Genetic,Susceptibilities, Genetic

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