ABSTRACT
Objective The objective of this study was to observe the effect of AEG-1 gene on the metastasis in breast cancer MCF-7 cells.Methods AEG-1 siRNAs were transfected into MCF-7 cells to silence AEG-1 expression,and negative siRNA was used as a control.Transwell chamber was used to detect the ability of cell migration and invasion of MCF-7 cells.CCK8 assay was used to detect the cell proliferation of MCF-7 cells.At the same time,the effect of VEGF on the angiogenesis was investigated by detecting the changes of lumen formation in HUVEC cells.Results The migration,invasive and proliferative abilities were significantly inhibited in MCF-7 cells transfected with AEG-1 siRNA.Knockdown AEG-1 was significantly decreased the level of VEGF in the supernatant of MCF-7 cells.Knockdown AEG-1 was also significantly inhibited the angiogenesis activity in HUVEC cells.Conclusion Knockdown AEG-1 can significantly inhibit the migration of MCF-7 cells,including cell migration,invasion,proliferation and angiogenesis.These results suggest that AEG-1 plays an important role in the metastasis process of breast cancer and opens up new ideas for future treatment breast cancer.
ABSTRACT
Depression is characterized by mental retardation, interest blank, hypoactivity, anxiety, appetite loss, sexual dysfunction, sleep disorders and other symptoms. The incidence of depressed patients has demonstrated an upward trend in recent years. Antidepressant drugs are commonly used in modern medicine, but they have the side effect of drug resistance. This study aims to explore the effect of acupuncture stimulation on expressions of macrophage-related cytokines in mice with depression induced by chronic unpredictable mild stress [CUMS], and to explore the underlying immunological mechanism. The CUMS model was successfully developed. The secretion of nuclear transcription factor-kappa B [NF-kappa B] and interleukin [IL]-8 increased significantly in the modeling group compared with the blank control group [P<0.05]. However, no significant difference of tumor necrosis factor-alpha [TNF-alpha] concentration was found [P>0.05]. After acupuncture treatment, the behavior indicator was improved and meanwhile, the levels of TNF-alpha, NF-kappa B, IL-8 decreased significantly compared with the sham group [P<0.05]. Depression mice were given treatment of acupuncture, and the effect of behavior change was observed and the content of macrophage cytokine production was measured, respectively. These findings suggested that inflammatory cytokines secreted by peritoneal macrophages increased significantly in mild depression mice, which can be improved by stimulation with acupuncture