Project description:Liver cancer is the fourth deadliest cancer worldwide and is in lack of prognostic indicators. As a p53 inducible gene, GTSE1 (G2 and S phase-expressed-1) showed widely correlation with tumor progress and prognosis in clinical, while its potency as a prognosis indicator or molecular mechanism in regulating cell cycle remain little known. This study aimed to elucidate clinical values and potential functions of GTSE1 in liver cancer. In study of GTSE1 functions, Bel-7404 cell, a human hepatoma cell line, was induced GTSE1-knockdown using lentiviral-mediated RNAi and performed RNA microarray analysis.
Project description:We sought to find out the molecular mechanism of CENPK displayed in hepatocellular carcinoma. Microarray experiments were carried out to identify different gene expression between CENPK-knockdown BEL-7404 cell line and Scramble BEL-7404 cell lines.
Project description:Baicalein, a purified flavonoid compound with defined chemical structure extracted from the dry roots of Scutellaria radix that is a broadly used herb in China, has been proved to possess significant anti-hepatoma activity by inhibiting cell proliferation, invasion, metastasis and inducing apoptosis, autophagy via several cancer-related signaling molecules. In recent years, emerging studies have demonstrated that Chinese medicinal herbs can exert their anti-tumor effects through targeting lncRNAs,such as curcumin, camptothecin, resveratrol,paclitaxel. However, there is still no related report about the effects of baicalein on lncRNA expression profile when it exerts its inhibition on hepatoma tumor growth. To investigate whether the antitumor effect of baicalein is related to its modulation of lncRNA expression in hepatocellular carcinoma (HCC), we profiled the lncRNA expression in HCC cell line Bel-7402 treated with baicalein (0, 40, 80μM) for 24 hours using lncRNA microarray and detected the changes by comparing the lncRNA expression profile of HCC cell line Bel-7402 treated with baicalein (40 and 80 μM) and its DMSO control (0 μM). These findings suggest that modulation of lncRNA expression may be an important mechanism underlying the anti-hepatoma effects of baicalein and lay the groundwork for further investigations. To investigate whether the antitumor effect of baicalein is related to its modulation of lncRNA expression in hepatocellular carcinoma (HCC), we profiled the miRNA expression in HCC cell line Bel-7402 treated with baicalein (0, 40, 80μM) for 24 hours using miRNA microarray and detected the changes by comparing the lncRNA expression profile of HCC cell line Bel-7402 treated with baicalein (40 and 80 μM) and its DMSO control (0 μM). These findings suggest that modulation of lncRNA expression may be an important mechanism underlying the anti-hepatoma effects of baicalein and lay the groundwork for further investigations.
Project description:We performed proteomics isobaric tags for relative and absolute quantification (iTraq) to identify proteins that changed before and after NMT1 was knocked down in both Bel-7402 and Bel-7404 cells.
Project description:Baicalein, a purified flavonoid compound with defined chemical structure extracted from the dry roots of Scutellaria radix that is a broadly used herb in China, has been proved to possess significant anti-hepatoma activity by inhibiting cell proliferation, invasion, metastasis and inducing apoptosis, autophagy via several cancer-related signaling molecules. In recent years, emerging studies have demonstrated that Chinese medicinal herbs can exert their anti-tumor effects through targeting miRNAs,such as curcumin, camptothecin, resveratrol. However, there is still no related report about the effects of baicalein on miRNA expression profile when it exerts its inhibition on hepatoma tumor growth. To investigate whether the antitumor effect of baicalein is related to its modulation of miRNA expression in hepatocellular carcinoma (HCC), we profiled the miRNA expression in HCC cell line Bel-7402 treated with baicalein (0, 40, 80μM) for 24 hours using miRNA microarray and detected the changes by comparing the miRNA expression profile of HCC cell line Bel-7402 treated with baicalein (40 and 80 μM) and its DMSO control (0 μM). These findings suggest that modulation of miRNA expression may be an important mechanism underlying the anti-hepatoma effects of baicalein and lay the groundwork for further investigations.
Project description:We treated Bel-7402 and Bel-7404 cells with corosolic acid, and then used TMT to analyze protein expression in both cell lines after treatment with corosolic acid
Project description:The extensive drug resistance of hepatocellular carcinoma (HCC) has become the main cause of chemotherapy failure. The mechanisms leading to drug resistance in tumor cells are not well understood. Previous studies demonstrated that plasma membrane proteins play important roles in mediating drug disposal or pharmacokinetics. Therefore, we performed proteomic studies on the composition of 5-fluorouracil (5-Fu) resistant Bel/5Fu cell line and its parent Bel7402 cell line by using an ionic liquid-assisted proteins extraction method with the advantage of extracting plasma membrane proteins to a greater extent. In total, 4,532 unique proteins were quantified and 103 proteins (>2-fold change, p-value <0.05) including 25 plasma membrane proteins showed to be differentially expressed in Bel/5Fu compared with Bel7402. Western blot analysis results were further confirmed that the plasma membrane proteins EPHX1 PLIN2 RAB27B SLC4A2 were up-regulated in Bel/5Fu cells in accordance with the proteomics data. Moreover, cell viability assay and clonogenic survival assay results demonstrated that EPHX1 are closely related to the chemoresistance of Bel/5Fu to 5Fu.