期刊
MOLECULAR AND CLINICAL ONCOLOGY
卷 1, 期 4, 页码 753-757出版社
SPANDIDOS PUBL LTD
DOI: 10.3892/mco.2013.127
关键词
Jumonji/Arid1B; esophageal cancer; gastrointestinal organs
类别
资金
- Ministry of Education, Culture, Sports, Science and Technology
- Kobayashi Cancer Research Foundation
- Princess Takamatsu Cancer Research Fund, Japan
- Grants-in-Aid for Scientific Research [23390199, 24109017, 25112708] Funding Source: KAKEN
Although esophageal cancer is highly heterogeneous and the involvement of epigenetic regulation of cancer stem cells is highly suspected, the biological significance of epigenetically modified molecules that regulate different subpopulations remains to be firmly established. Using esophageal cancer cells, we investigated the functional roles of the H3K4 demethylase Jumonji/Arid1b (Jarid1b) (Kdm5b/Plu-1/Rbp2-h1), an epigenetic factor that is required for continuous cell growth in melanoma. JARID1B knockdown resulted in the suppression of esophageal cancer cell growth, sphere formation and invasion ability and was associated with loss of epithelial marker expression. However, these inhibitory effects observed on tumor formation were reverted subsequent to subcutaneous inoculation of these cells into immune-deficient mice. These results indicated that JARID1B plays a role in maintaining cancer stem cells in the esophagus and justifies the rationale for studying the effects of continuous inhibition of this epigenetic factor in esophageal cancer.
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