Epigenetic changes associated with mechanisms of disparities in hepatocellular carcinoma

Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul:2020:5320-5325. doi: 10.1109/EMBC44109.2020.9176036.

Abstract

In addition to socioeconomic influences, biological factors are believed to play a role in health disparities. In this paper, we investigate miRNA, mRNA, and DNA methylation patterns that contribute to disparities in hepatocellular carcinoma (HCC). This is accomplished by integration of mRNA-Seq, miRNA-Seq, and DNA methylation data we acquired by analysis of liver tissues from 30 HCC patients consisting of European Americans (EAs), African Americans (AAs), and Asian Americans (Asians). Mixed-ANOVA models are applied to identify miRNAs, mRNAs, and DNA methylation sites that are significantly altered in tumor vs. adjacent normal tissues in a race-specific manner. Through integrated analysis, a refined list of differentially expressed mRNAs is obtained by selecting those that are targets of differentially expressed miRNAs and consist of promoter regions that are differentially methylated.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Carcinoma, Hepatocellular* / genetics
  • Epigenesis, Genetic
  • Gene Regulatory Networks
  • Humans
  • Liver Neoplasms* / genetics
  • MicroRNAs* / genetics

Substances

  • MicroRNAs