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자료유형
학술저널
저자정보
Thongchot, Suyanee (Department of Biochemistry, Khon Kaen University) Loilome, Watcharin (Department of Biochemistry, Khon Kaen University) Yongvanit, Puangrat (Department of Biochemistry, Khon Kaen University) Dokduang, Hasaya (Department of Biochemistry, Khon Kaen University) Thanan, Raynoo (Department of Biochemistry, Khon Kaen University) Techasen, Anchalee (Department of Biochemistry, Faculty of Associated Medical Sciences, Khon Kaen University) Namwat, Nisana (Department of Biochemistry, Khon Kaen University)
저널정보
아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제16권 제5호
발행연도
2015.1
수록면
2,031 - 2,035 (5page)

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Intra-tumoral hypoxia is an environment that promotes tumor cell migration, angiogenesis and epithelial-mesenchymal transition that accounts for a major mechanism of metastasis. Chloroquine potentially offers a new therapeutic approach with an 'old' drug for effective and safe cancer therapies, as it exerts anti-metastatic activity. We investigated the inhibitory effect of chloroquine on cholangiocarcinoma (CCA) cell migration under cobalt chloride ($CoCl_2$)-stimulated hypoxia. We showed that chloroquine suppressed CCA cell migration under hypoxic-mimicking conditions on exposure to $100{\mu}M$ $CoCl_2$. Moreover, chloroquine stabilized the protein level of prolyl hydroxylase domain proteins (PHD-2) but reduced the levels of hypoxic responsive proteins such as hypoxia-inducible factor (HIF-$1{\alpha}$) and vascular endothelial growth factor (VEGF). It also suppressed epithelial mesenchymal transition (EMT) by increasing the ratio of E-cadherin to N-cadherin under hypoxic conditions. In conclusion, chloroquine can inhibit hypoxia-stimulated metastasis via HIF-$1{\alpha}$/VEGF/EMT which may serve as a useful additional strategy for CCA therapy.

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