Zobrazení zdroje stránky Vilhelmsenrussell0203

Besides, we also found that circRNA_100782 regulated the migration ability of gastric cancer cells through transwell assay. The bioinformatics prediction and luciferase assay demonstrated that circRNA_100782 can serve as a molecular sponge to further regulate the expression of Rb by sponging with miR-574-3p; moreover, circRNA_100782 can serve as a ceRNA for miR-574-3p to further regulate the expression of Rb.<br /><br /> In this research, we discovered that circRNA_100782 was downregulated in gastric cancer cells and is associated with cell proliferation and invasion by inhibiting tumor suppressor gene Rb by interacting with miR-574-3p.<br /><br />In this research, we discovered that circRNA_100782 was downregulated in gastric cancer cells and is associated with cell proliferation and invasion by inhibiting tumor suppressor gene Rb by interacting with miR-574-3p.<br /><br /> MicroRNAs (miRNAs) are 22 nucleotides long that are extensively expressed in eukaryotes. They are vital regulators in pathological processes. This study aims to illustrate the role of miRNA-146b-5p in the development of gastric cancer (GC).<br /><br /> MiRNA-146b-5p levels in 62 GC species and matched paracancerous ones were detected. Influences of miRNA-146b-5p level on clinical parameters of GC patients were assessed. Phenotype changes of AGS and SGC-7901 cells overexpressing miRNA-146b-5p were evaluated by Cell Counting Kit-8 (CCK-8) and transwell assay, respectively. Luciferase assay and rescue experiments were conducted to uncover the mechanism of miRNA-146b-5p in regulating the development of GC.<br /><br /> MiRNA-146b-5p was downregulated in GC species than paracancerous ones. Lower level of miRNA-146b-5p was observed in GC patients combined lymphatic metastasis and distant metastasis than those without metastases. In vitro overexpression of miRNA-146b-5p attenuated proliferative and migratory potentials of GC cells. TRAF6 was the target of miRNA-146b-5p, which was responsible for the development of GC regulated by miRNA-146b-5p.<br /><br /> MiRNA-146b-5p level is negatively correlated to lymphatic metastasis and distant metastasis rates of GC. It suppresses the malignant development of GC by targeting TRAF6.<br /><br />MiRNA-146b-5p level is negatively correlated to lymphatic metastasis and distant metastasis rates of GC. It suppresses the malignant development of GC by targeting TRAF6.<br /><br /> Long non-coding RNA (lncRNA) HMGA1P4 has been previously reported to be upregulated in gastric cancer (GC). [https://www.selleckchem.com/products/iwp-4.html this website] This study aims to investigate the role of HMGA1P4 in cisplatin (DDP)-resistant GC.<br /><br /> HMGA1P4 levels in DDP-resistant GC tissues and cells were determined. Regulatory effects of HMGA1P4 on proliferative and apoptotic abilities in DDP-resistant GC cells and their parental cells were assessed. At last, expression levels of genes associated with multidrug-resistance (MDR) (MDR1, MRP1, mTOR and HIF-1α) and apoptosis (Bax, Bcl-2 and Caspase3) were determined in DDP-resistant GC cells.<br /><br /> Results revealed that HMGA1P4 was upregulated in DDP-resistant GC tissues and cells. Overexpression of HMGA1P4 stimulated proliferative rate and suppressed apoptosis in both DDP-resistant GC cells and their parental cells. Moreover, in DDP-resistant GC cells, overexpression of HMGA1P4 upregulated MDR-related genes and downregulated apoptosis-related genes.<br /><br /> HMGA1P4 is upregulated in DDP-resistant GC tissues and cells, and triggers the progression of DDP-resistance in GC.<br /><br />HMGA1P4 is upregulated in DDP-resistant GC tissues and cells, and triggers the progression of DDP-resistance in GC.<br /><br /> We aimed at observing the correlation between microRNA-766 expression and the efficacy of platinum-containing chemotherapy in patients with stage IV gastric cancer (GCa).<br /><br /> Tissue specimens were obtained from 100 patients with stage IV GCa who received platinum-based chemotherapy, and microRNA-766 expression in these samples was examined by quantitative real-time polymerase chain reaction (qPCR) analysis. Survival analysis was carried out through Kaplan-Meier test. The influencing factors of survival were assessed through COX univariate and multivariate regression.<br /><br /> GCa tissues contained significant lower expression of microRNA-766 than adjacent tissues. The degree of tumor differentiation and peritoneal metastasis were confirmed to have great relevance to microRNA-766 level. Patients with high microRNA-766 expression have better chemotherapy efficacy and longer progression-free survival.<br /><br /> Our study shows for the first time that the highly expressed microRNA-766 in tumor tissues of patients with stage Ⅳ GCa predicts better platinum-containing chemotherapy efficacy and prognosis.<br /><br />Our study shows for the first time that the highly expressed microRNA-766 in tumor tissues of patients with stage Ⅳ GCa predicts better platinum-containing chemotherapy efficacy and prognosis.<br /><br /> Colorectal cancer (CRC) has a very high morbidity and mortality worldwide. Related studies have shown that microRNA-543 (miR-543) is involved in the development of many cancers, including CRC. The purpose of this study was to explore the potential molecular mechanism of miR-543's involvement in the development of CRC.<br /><br /> QRT-PCR and Western blot were used to detect the expression of proliferation and migration-related proteins, signal transduction and transcriptional activator 3 and protein inhibitor of activated signal transducer and activators of transcription 3 (PIAS3). Cell proliferation and metastasis were measured by MTT, transwell and Western blot. The binding sites of miR-543 and PIAS3 were predicted by TargetScan database and verified by double-luciferase report experiment.<br /><br /> The expression of miR-543 was high in CRC tissues and cell lines, while the mRNA and protein levels of PIAS3 were decreased. Meanwhile, a negative correlation between miR-543 and PIAS3 was also observed in CRC tissues. Moreover, the downregulation of miR-543 led to the inhibition of viability and the expression of proliferation and migration related proteins. Subsequently, miR-543 depletion also blocked cell migration and invasion. MiR-543 inhibits the expression of PISA3. Furthermore, downregulation of PIAS3 undermined the miR-543 depletion-mediated suppression effect on SW480 and LOVO cells. Notably, loss of miR-543 downregulated STAT3 activity, which was rescued by PIAS3 ablation.<br /><br /> MiR-543 participated in cell proliferation and metastasis by targeting PIAS3 in CRC.<br /><br />MiR-543 participated in cell proliferation and metastasis by targeting PIAS3 in CRC.