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find Author "YINXiao-ping" 1 results
  • Effect of lncRNA-MALAT1 on Colorectal Cancer Cells Mediated Angiogenesis

    ObjectiveTo observe the effect of lncRNA-metastasis-associated lung adenocarcinoma transcript 1(MALAT1)on colorectal cancer cells-induced angiogenesis, and explore the potential underlying mechanism. MethodsMALAT1 was overexpressed in colorectal cancer cells SW48 by plasmids transfection, then SW48 cells were cultured at normoxia or hypoxia conditions. The culture media was collected, and the concentration of vascular endothelial growth factor (VEGF) in the media was measured by the enzyme-linked immuno sorbent assay (ELISA), and the human umbilical vein endothelial cells (HUVEC) were incubated with the media collected above. Meanwhile, the expression of hypoxia-inducible factor-1α(HIF-1α) in SW48 cells was detected by western blot. ResultsOverexpression of MALAT1 increased the VEGF level in the culture media, normoxia:the MALAT1 group (514±32) mg/L vs. the control group (110±14) mg/L, P < 0.05; hypoxia:the MALAT1 group (928±18) mg/L vs. the control group (230±21) mg/L, P < 0.05. Meanwhile, the tube formation activity of HUVEC was enhanced, and the expression of HIF-1αwas elevated in the MALAT1 group by western blot. ConclusionOverexpression of MALAT1 could promote colorectal cancer cells-mediated angiogenesis, it may be developed as a new drug target for colorectal cancer treatment.

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