Journal
ONCOTARGETS AND THERAPY
Volume 11, Issue -, Pages 2937-2944Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/OTT.S157949
Keywords
indirubin; Td-EC; proliferation; migration; invasion; angiogenesis
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Funding
- Scientific and Technological Development Fund from Affiliated Hospital of Chengdu University of TCM [2013-0-yy-02]
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Purpose: Hepatocellular carcinoma is one of the most predominant malignancies with high fatality rate and its incidence is rising at an alarming rate because of its resistance to radio-and chemotherapy. Indirubin is the major active anti-tumor ingredient of a traditional Chinese herbal medicine. The present study aimed to analyze the effects of indirubin on cell proliferation, migration, invasion, and angiogenesis of tumor-derived endothelial cells (Td-EC). Methods: Td-EC were derived from human umbilical vein endothelial cells (HUVEC) by treating HUVEC with the conditioned medium of human liver cancer cell line HepG2. Cell proliferation, migration, invasion, and angiogenesis were assessed by MTT, wound healing, in vitro cell invasion, and in vitro tube formation assay. Results: Td-EC were successfully obtained from HUVEC cultured with 50% culture supernatant from serum-starved HepG2 cells. Indirubin significantly inhibited Td-EC proliferation in a dose-and time-dependent manner. Indirubin also inhibited Td-EC migration, invasion, and angiogenesis. However, indirubin's effects were weaker on HUVEC than Td-EC. Conclusion: Indirubin significantly inhibited Td-EC proliferation, migration, invasion, and angiogenesis.
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