Novel Somatic Copy Number Alteration Identified for Cervical Cancer in the Mexican American Population

Medical Sciences : Open Access Journal
Alireza TorabiChun Xu

Abstract

Cervical cancer affects millions of Americans, but the rate for cervical cancer in the Mexican American is approximately twice that for non-Mexican Americans. The etiologies of cervical cancer are still not fully understood. A number of somatic mutations, including several copy number alterations (CNAs), have been identified in the pathogenesis of cervical carcinomas in non-Mexican Americans. Thus, the purpose of this study was to investigate CNAs in association with cervical cancer in the Mexican American population. We conducted a pilot study of genome-wide CNA analysis using 2.5 million markers in four diagnostic groups: reference (n = 125), low grade dysplasia (cervical intraepithelial neoplasia (CIN)-I, n = 4), high grade dysplasia (CIN-II and -III, n = 5) and invasive carcinoma (squamous cell carcinoma (SCC), n = 5) followed by data analyses using Partek. We observed a statistically-significant difference of CNA burden between case and reference groups of different sizes (>100 kb, 10-100 kb and 1-10 kb) of CNAs that included deletions and amplifications, e.g., a statistically-significant difference of >100 kb deletions was observed between the reference (6.6%) and pre-cancer and cancer (91.3%) groups. Recurrent aberration...Continue Reading

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Methods Mentioned

BETA
chip
genotyping
PCA
chromosomal aberrations
environmental stress
RNA-Seq

Software Mentioned

Partek ® Genomic Suite
Illumina GenomeStudio Genotyping Module
Partek Genomic Suite
Partek Genomics Suite
SPSS
Partek

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