-
Turan Suhr heeft een update geplaatst 3 dagen, 14 uren geleden
The circular RNA RNF13 (circ-RNF13; ID hsa_circ_0067717) is a novel identified abnormally upregulated circRNA in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC) patients. However, its role and mechanism remain to be further annotated. The expression of circ-RNF13, microRNA (miR)-424-5p, and TGFβ-induced factor homeobox 2 (TGIF2) were detected by real-time quantitative PCR and western blotting, and their interaction was confirmed by dual-luciferase reporter assay. Linsitinib price Functional assays were performed using MTS assay, colony formation assay, flow cytometry, enzyme-linked immunosorbent assay, transwell assay, and xenograft tumor model, along with real-time quantitative PCR. Circ-RNF13 was upregulated in HBV-infected human HCC tissues and HBV-expressing cells (Huh7-HBV and Hep3B-HBV), accompanied with TGIF2 upregulation and miR-424-5p downregulation. Blocking circ-RNF13 enhanced the apoptosis rate of Huh7-HBV and Hep3B-HBV cells but inhibited cell viability, colony formation, migration, and invasion, along with suppressed tumor growth in vivo. Besides, HBV DNA copies and levels of hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) were diminished by circ-RNF13 knockdown in Huh7-HBV and Hep3B-HBV cells. Mechanistically, circ-RNF13 and TGIF2 served as competing endogenous RNAs (ceRNAs) for miR-424-5p. Overexpressing miR-424-5p mimicked and silencing miR-424-5p counteracted the effects of circ-RNF13 depletion in HBV-expressing HCC cells in vitro. Consistently, TGIF2 restoration partially abrogated the role of miR-424-5p upregulation in Huh7-HBV and Hep3B-HBV cells. The circ-RNF13 sponged miR-424-5p to suppress HBV-associated HCC cells malignant progression and HBV infection by regulating TGIF2, providing a novel insight into the occurrence and treatment of HBV-associated HCC.Endometrial endometrioid carcinoma (EEC) represents approximately 75-80% of endometrial carcinoma cases. Three hundred thirty-six patients with EEC followed-up in the authors’ institutions between and 2010-2018 were included in our study. Two hundred seventy-two low- and intermediate- EEC patients were identified using the European Society for Medical Oncology criteria and confirmed by histopathological examination. Recurrence was reported in 17 of these patients. The study group consisted of patients with relapse. A control group of 51 patients was formed at a ratio of 31 according to age, stage, and grade, similar to that in the study group. Of the 17 patients with recurrent disease, 13 patients (76.5%) were stage 1A, and 4 patients (23.5%) were stage 1B. No significant difference was found in age, stage, and grade between the case and control groups (p>0.05). Body mass index, parity, tumor size, lower uterine segment involvement, SqD, and Ki-67 index with p less then 0.25 in the univariate logistic regression analysis were included in the multivariate analysis. Ki-67 was statistically significant in multivariate analysis (p=0.018); however, there was no statistical significance in SqD and other parameters. Our data suggest that the Ki-67 index rather than SqD needs to be assessed for recurrence in patients with low- and intermediate-risk EEC.WD40 repeat (WDR) domain is one of the most abundant protein interaction domains in the human proteome. More than 360 protein interaction domains have been annotated until now. WDR domains frequently mediate interaction with peptide regions of important interaction partners during a variety of biological processes. Proteins with WDR domain which is typically a seven-bladed β propeller, are continuously being discovered. They represent a large class of proteins that are likely to be central proteins. WDR domain-containing protein 76 (WDR76) is a member of WDR domain-containing protein. It is still poorly understood with possible involvement in DNA damage repair, apoptosis, cell cycle progression, and gene expression regulation. With further study on WDR76, knowledge of its basic functions and its role in different pathophysiological processes are increasing. Diverse interactions between WDR76 and its partners are complex and made a study on WDR76 challenging. In the present review, we summarized the process of understanding WDR76, its physiological functions, the close relationship with human diseases, and further potential opportunity for target therapy.Coronavirus disease-19 (COVID-19) is an extremely infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has become a major global health concern. The induction of a coordinated immune response is crucial to the elimination of any pathogenic infection. However, SARS-CoV-2 can modulate the host immune system to favor viral adaptation and persistence within the host. The virus can counteract type I interferon (IFN-I) production, attenuating IFN-I signaling pathway activation and disrupting antigen presentation. Simultaneously, SARS-CoV-2 infection can enhance apoptosis and the production of inflammatory mediators, which ultimately results in increased disease severity. SARS-CoV-2 produces an array of effector molecules, including nonstructural proteins (NSPs) and open-reading frames (ORFs) accessory proteins. We describe the complex molecular interplay of SARS-CoV-2 NSPs and accessory proteins with the host’s signaling mediating immune evasion in the current review. In addition, the crucial role played by immunomodulation therapy to address immune evasion is discussed. Thus, the current review can provide new directions for the development of vaccines and specific therapies.Ferroptosis is a form of iron-dependent programmed cell death. Regulation of ferroptosis in tumor cells is a novel treatment modality. The present study aimed to investigate ferroptosis-related long non-coding RNAs (lncRNAs) and construct a prognostic model for colon adenocarcinoma (COAD). RNA- sequencing data and ferroptosis-related genes were obtained from The Cancer Genome Atlas database and FerrDb database. COAD patients were randomly assigned to training- and validation groups. The Least Absolute Shrinkage and Selection Operator regression and Cox regression model were used to determine and develop a predictive model. The model was corroborated using the validation group and the entire group. In total, 259 ferroptosis-related genes and 905 ferroptosis-related LncRNAs were obtained. Cox model revealed and constructed seven ferroptosis-related LncRNAs signature (LINC01503, AC004687.1, AC010973.2, AP001189.3, ARRDC1-AS1, OIP5-AS1, and NCK1-DT). Patients were assigned into two groups according to the median risk score.