Gene expression patterns in human liver cancers. Author Xin Chen, Siu Cheung, Samuel So, Sheung Fan, Christopher Barry, John Higgins, Kin-Man Lai, Jiafu Ji, Sandrine Dudoit, Irene Ng, Matt van de Rijn, David Botstein, Patrick Brown Publication Year 2002 Type Journal Article Abstract Hepatocellular carcinoma (HCC) is a leading cause of death worldwide. Using cDNA microarrays to characterize patterns of gene expression in HCC, we found consistent differences between the expression patterns in HCC compared with those seen in nontumor liver tissues. The expression patterns in HCC were also readily distinguished from those associated with tumors metastatic to liver. The global gene expression patterns intrinsic to each tumor were sufficiently distinctive that multiple tumor nodules from the same patient could usually be recognized and distinguished from all the others in the large sample set on the basis of their gene expression patterns alone. The distinctive gene expression patterns are characteristic of the tumors and not the patient; the expression programs seen in clonally independent tumor nodules in the same patient were no more similar than those in tumors from different patients. Moreover, clonally related tumor masses that showed distinct expression profiles were also distinguished by genotypic differences. Some features of the gene expression patterns were associated with specific phenotypic and genotypic characteristics of the tumors, including growth rate, vascular invasion, and p53 overexpression. Keywords Liver, Humans, Genetic Variation, Oligonucleotide Array Sequence Analysis, Genotype, Gene Expression Regulation, Neoplastic, Cell Division, Carcinoma, Hepatocellular, Genes, p53, Liver Neoplasms, RNA, Neoplasm Journal Mol Biol Cell Volume 13 Issue 6 Pages 1929-39 Date Published 06/2002 Alternate Journal Mol. Biol. Cell Google ScholarBibTeXEndNote X3 XML