Zobrazení zdroje stránky Melgaardlim5395

Moreover, MAT enhanced PDCD4 expression by up-regulating LINC00472. Besides, we discovered MAT elevated PTEN but restrained PI3K/AKT proteins. Finally, tumor volume and weight were declined by MAT in vivo via up-regulating LINC00472. Conclusion MAT restrained cell growth and metastasis but promoted PDCD4 expression by up-regulating LINC00472 via restraining PTEN/PI3K/AKT pathway in BC. © 2020 Li et al.Background As a key subtype of non-coding RNAs, circular RNA (circRNA) has been well documented to play a key role in the tumorigenesis of osteosarcoma (OS). circPVT1 was revealed to participate in the progression of multiple human tumors; however, the roles of circPVT1 in OS invasion and metastasis and its potential mechanisms remain elusive. Methods RNA expression in OS tissues and cells was examined by qRT-PCR, protein expression was measured by Western blot. circPVT1 knockdown in vitro was achieved by transfecting OS cells with specific siRNAs. OS cell proliferation was assessed via CCK-8 and colony formation assays. OS cell migration and invasion were evaluated by transwell assay. Interaction between miR-205-5p and circPVT1 or c-FLIP was validated through dual-luciferase reporter assay. Rescue experiments were performed to explore the regulatory net among circPVT1, miR-205-5p and c-FLIP in OS progression in vitro. Results circPVT1 and c-FLIP were highly expressed, while miR-205-5p was lowly expressed in OS tissues and cell lines. Knockdown of circPVT1 repressed cell proliferation, migration and invasion via inhibiting epithelial-mesenchymal transition (EMT) in OS. circPVT1 functioned as a sponge of miR-205-5p, and c-FLIP was targeted by miR-205-5p in OS cells. Furthermore, circPVT1 indirectly regulated c-FLIP expression through competitively binding to miR-205-5p. Inhibition of miR-205-5p or overexpression of c-FLIP abolished the effects of si-circPVT1 on cell proliferation, migration and invasion. Conclusion Our study demonstrated circPVT1 functions as a sponge for miR-205-5p to promote c-FLIP expression, thereby enhancing EMT and inducing OS invasion and metastasis in vitro, implying that circPVT1 might be a potential therapeutic target for further clinical therapy of OS. © 2020 Liu et al.Introduction The functions of DCST1-AS1 have been investigated in liver cancer, while its role in endometrial carcinoma (EC) remains hardly known. This study aimed to analyze the role of DCST1-AS1 in EC. Methods Paired EC and non-tumor tissue samples were obtained from 62 EC patients. These patients were followed up for 5 years since their admission to record their survival conditions. HEC-1 cells were transfected with DCST1-AS1, Notch1 vectors, miRNA negative control or miR-92a-3p mimic. Luciferase activity was measured. QPCR and Western blot were applied to determine the RNA level and protein expression, respectively. The invasion and migration of HEC-1 cells were analyzed by Transwell assay. Results We in this study found that DCST1-AS1 was upregulated in EC. Survival analysis revealed that high levels of DCST1-AS1 expression predicted poor survival of EC patients. Bioinformatics analysis revealed that miR-92a-3p may bind DCST1-AS1 and the interaction between them was further confirmed by dual-luciferase activity assay. However, overexpression of miR-92a-3p and DCST1-AS1 failed to affect the expression of each other. Moreover, DCST1-AS1 overexpression led to upregulated Notch1 and increased cancer cell invasion and migration rates. Overexpression of miR-92a-3p played an opposite role and attenuated the effects of DCST1-AS1 overexpression. Discussion DCST1-AS1 is downregulated in EC and may sponge miR-92a-3p, thereby promoting cancer cell invasion and migration. © 2020 Ke et al.Objective The aim of this study was to determine the role of contrast-enhanced computed tomography (CE-CT) parameters in predicting the expression status of HER2 in gastric adenocarcinoma (GAC) patients before radical gastrectomy. [https://www.selleckchem.com/products/torin-1.html Torin 1 nmr] Materials and Methods A total of 460 GAC patients who underwent non-contrast CT (NC-CT) and CE-CT examinations before radical resection were enrolled in this retrospective study. The radiologists reviewed their CT scans and recorded parameters, including CT attenuate value (CAV) and corrected CAV (cCAV). The pathologist identified the postoperative HER2 expression status, and HER2 expression status was evaluated by immunohistochemical staining (IHC). The association between CE-CT parameters and HER2 expression status was analyzed. Results Among the 460 patients, 84 patients had HER2 over-expression status, at a prevalence of 18.3%. The CAVs were significantly different between the 2 different HER2 expression groups in the non-contrast and arterial phases (non-contrast phase p = 0.005; arterial phase p less then 0.001). Besides, there was a significant difference in the cCAVs between the 2 groups in the arterial phase (arterial phase p = 0.003). Univariate and multivariate logistic regression analyses identified that the maximum diameter of tumor, differentiation degree, CAV in non-contrast, arterial, and portal phases, and cCAV in the arterial phase were predictive factors of HER2 expression status. Conclusion Our analyses showed that the CE-CT parameters were significantly different between different HER2 expression groups. CE-CT parameters could serve as simple, objective predictive factors of HER2 expression status of GAC patients. © 2020 Wang et al.Purpose Although regular water is composed of two hydrogens and one oxygen, referred to as H2O, a small amount of water on this planet contains alternative forms of elements with different molecular weights because of the addition of neutrons. The present study was dedicated to studying the effect of heavy water (D2O), in which the two hydrogens become substituted by deuterium, on the cell physiology of different human cells with particular focus on malignant melanoma cells. Methods Cells were cultured in regular medium in which the content of H2O was gradually substituted by D2O or deuterium-depleted water (DDW). Following this, the changes of basic cellular parameters, such as morphology, migration, proliferation, cell cycle, apoptosis and microtubule integrity were examined. Results It was found that raising the D2O content above the standard levels led to a concentration-dependent decrease in proliferation. Lowering the D2O levels below this level had no effect. Likewise, elevated D2O levels hampered migration.