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CD133 Modulate HIF-1? Expression under Hypoxia in EMT Phenotype Pancreatic Cancer Stem-Like Cells.

ABSTRACT:

Unlabelled

Although CD133 is a known representative cancer stem cell marker, its function in tumor aggressiveness under hypoxia is not fully known. The aim of this study is to demonstrate that CD133 regulates hypoxia inducible factor (HIF)-1? expression with tumor migration. The CD133? pancreatic cancer cell line, Capan1M9, was compared with the CD133(-) cell line, shCD133M9, under hypoxia. HIF-1? expression levels were compared by Western blot, HIF-1? nucleus translocation assay and real-time (RT)-PCR. The hypoxia responsive element (HRE) was observed by luciferase assay. The migration ability was analyzed by migration and wound healing assays. Epithelial mesenchymal transition (EMT) related genes were analyzed by real-time RT-PCR. HIF-1? was highly expressed in Capan1M9 compared to shCD133M9 under hypoxia because of the high activation of HRE. Furthermore, the migration ability of Capan1M9 was higher than that of shCD133M9 under hypoxia, suggesting higher expression of EMT related genes in Capan1M9 compared to shCD133M9.

Conclusion

HIF-1? expression under hypoxia in CD133? pancreatic cancer cells correlated with tumor cell migration through EMT gene expression. Understanding the function of CD133 in cancer aggressiveness provides a novel therapeutic approach to eradicate pancreatic cancer stem cells.

SUBMITTER: Maeda K

PROVIDER: S-EPMC4964401 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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CD133 Modulate HIF-1α Expression under Hypoxia in EMT Phenotype Pancreatic Cancer Stem-Like Cells.

Maeda Koki K Ding Qiang Q Yoshimitsu Makoto M Kuwahata Taisaku T Miyazaki Yumi Y Tsukasa Koichirou K Hayashi Tomomi T Shinchi Hiroyuki H Natsugoe Shoji S Takao Sonshin S

International journal of molecular sciences 20160628 7

<h4>Unlabelled</h4>Although CD133 is a known representative cancer stem cell marker, its function in tumor aggressiveness under hypoxia is not fully known. The aim of this study is to demonstrate that CD133 regulates hypoxia inducible factor (HIF)-1α expression with tumor migration. The CD133⁺ pancreatic cancer cell line, Capan1M9, was compared with the CD133(-) cell line, shCD133M9, under hypoxia. HIF-1α expression levels were compared by Western blot, HIF-1α nucleus translocation assay and rea ...[more]

PMID: 27367674

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