Unknown,Transcriptomics,Genomics,Proteomics

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Gene expression of human paediatric osteosarcoma tumour samples relative to normal human osteoblasts


ABSTRACT: Gain or loss of genes and deregulation of gene expression can result in cumulative and progressive disruptions of normal cellular functions. Cancer-specific changes in gene expression play an essential role in cancer occurrence, and ultimately lead to cancer-related self-sufficiency in growth signals, insensitivity to growth inhibitory signals, evasion of apoptosis, limitless replicative potential, angiogenesis, and metastasis. We aimed to analyse such changes in gene expression related to osteosarcoma. We performed genome-wide comparison of gene expression and identified genes that are differentialy expressed in osteosarcoma tumour samples relative to normal human osteoblasts (HOB)

ORGANISM(S): Homo sapiens

SUBMITTER: Bekim Sadikovic 

PROVIDER: E-GEOD-12865 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Identification of interactive networks of gene expression associated with osteosarcoma oncogenesis by integrated molecular profiling.

Sadikovic Bekim B   Yoshimoto Maisa M   Chilton-MacNeill Susan S   Thorner Paul P   Squire Jeremy A JA   Zielenska Maria M  

Human molecular genetics 20090313 11


Altered gene expression in tumors can be caused by copy number alterations to DNA or mutation affecting coding or regulatory regions of genes. However, epigenetic events may also influence gene expression. Malignant cells can show major disruptions in DNA methylation profiles, which are manifested as aberrant hypermethylation or as hypomethylation of gene promoters, as well as global genomic hypomethylation. In this study we performed integrative whole-genome analysis of DNA copy number, promote  ...[more]

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