MST4 upregulates secretion of inflammatory factors via activation of MAPK-ERK signaling pathway and promotes invasion and metastasis of hepatocellular carcinoma
林镇海, 闫士灿, 张洁筠. MST4 upregulates secretion of inflammatory factors via activation of MAPK-ERK signaling pathway and promotes invasion and metastasis of hepatocellular carcinoma[J]. China Oncology, 2017, 27(9): 681-686.
林镇海, 闫士灿, 张洁筠. MST4 upregulates secretion of inflammatory factors via activation of MAPK-ERK signaling pathway and promotes invasion and metastasis of hepatocellular carcinoma[J]. China Oncology, 2017, 27(9): 681-686. DOI: 10.19401/j.cnki.1007-3639.2017.09.001.
Background and purpose: It has been reported that mammalian Ste20-like kinase 4 (MST4) promotes the invasion and metastasis of tumors. In the previous research
we found that MST4 promoted invasion and metastasis of liver cancer through epithelial-mesenchymal transition. In this study
we explored the effect of MST4 on promoting the invasion and metastasis of hepatocellular carcinoma (HCC) cells by activating MAPK-ERK signaling pathway and inflammatory factors. Methods: We used real-time fluorescence quantitative polymerase chain reaction (RTFQ-PCR) to detect the transcription of IL-1β
IL-6
TNF-α and CCL2 in different HCC cell lines expressing MST4 differently. Then we studied the different secretion of IL-1β
IL-6
TNF-α and CCL2 in cells using Western blot and enzyme-linked immunosorbent assay (ELISA). Results: The RNA transcription and protein translation levels of IL-1β
IL-6
TNF-α and CCL2 were significantly higher in HCC cell line with high expression of MST4 than those in the HCC cell line with lower expression of MST4 (P0.05). We found that MST4 could change the level of phosphorylation of ERK to promote secretion of inflammatory cytokines. Conclusion: High expression of MST4 can upregulate the secretion of inflammatory factors (IL-1β
IL-6
TNF-α and CCL2) in HCC cells and enhance the ability of invasion and metastasis of HCC cells
through activating the MAPK-ERK signaling pathway.