In conclusion, YY1 and VEGF/CXCR4 seem to intervene in the pathogenesis of the malignant phenotype of osteosarcoma by acting on cell invasiveness and metastasis growth.
In summary, it was demonstrated that miRNA-638 expression change in patients with osteosarcoma and an <i>in vitro</i> model via PLD1 and VEGF expression and miRNA-638 may be potential clinical indicators of osteosarcoma.
In the present study, the effects of IRX2 on the upregulation of MMP2 and VEGF in OS were determined by western blotting, and the underlying molecular mechanisms were elucidated.
In the present study, we reported the higher expression of vascular endothelial growth factor‑A (VEGF‑A) in osteosarcoma cells that were resistant to anoikis than in parental osteosarcoma cells, promoting the proliferation, tube formation, and migration of human umbilical vein endothelial cells (HUVECs).
In this study, we investigated the effects of PEDF on growth and vascular endothelial growth factor (VEGF) expression in MG63 human cultured osteosarcoma cells.
It has been reported that VEGFR expression correlates with the outcome of patients with osteosarcoma and circulating VEGF level has been associated with the development of lung metastasis.
Knockdown of EWS/Fli-1 using siRNA on a Ewing's sarcoma cell line (A673) suppressed VEGF-A expression, and transfection of EWS/Fli-1 into a human osteosarcoma cell line increased VEGF-A expression.
Moreover, the function of HIF1 in osteosarcoma cells was further investigated in in-vitro experiments by regulating HIF1 and vascular endothelial growth factor-A (VEGF-A) expression.
Moreover, we show that WISP-1 promotes VEGF-A expression in human osteosarcoma cells, subsequently inducing human endothelial progenitor cell (EPC) migration and tube formation.
Samples from osteosarcoma patients were assessed for HIF-1alpha and VEGF protein expression using immunohistochemistry, neovascularization using antibodies for Factor VIII, and cell proliferation using the Ki-67 labeling index.
Simultaneous silencing of VEGF and Survivin using the dual siRNA may be an advantageous alternative for the development of therapeutic strategies against human osteosarcoma.
Spearman's correlation analysis was utilized to examine the relationship between miR‑944 and VEGF expression levels, and rescue experiments were applied to further verify whether VEGF mediates the role of miR‑944 in OS.
Taken together, our data demonstrate that VEGF silencing suppresses cell proliferation, promotes cell apoptosis, and reduces osteosarcoma angiogenesis through inactivation of PI3K/AKT signaling pathway.