Journal
OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY
Volume 14, Issue 4, Pages 369-384Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/omi.2010.0053
Keywords
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Funding
- MOST, China [2006AA02A303, 2006AA02Z4A2, 2006DFA32950, 2007DFC30360, 2004CB 518707]
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SOX2 is anHMGbox containing transcription factor that has been implicated in various types of cancer, but its role in colorectal cancers (CRC) has not been studied. Here we show that SOX2 is overexpressed in CRC tissues compared with normal adjacent tissues using immunohistochemical staining and RT-PCR. We also observed an increased SOX2 expression in nucleus of colorectal cancer tissues (46%, 14/30 cases vs. 7%, 2/30 adjacent tissues). Furthermore, knockdown of SOX2 in SW620 colorectal cancer cells decreased their growth rates in vitro cell line, and in vivo in xenograft models. ChIP-Seq analysis of SOX2 revealed a consensus sequence of wwTGywTT. An integrated expression profiling and ChIP-seq analysis show that SOX2 is involved in the BMP signaling pathway, steroid metabolic process, histone modifications, and many receptor-mediated signaling pathways such as IGF1R and ITPR2 (Inositol 1,4,5-triphosphate receptor, type 2).
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