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Monomeric C-reactive protein affects cell injury and apoptosis through activation of p38 MAPK in human coronary artery endothelial cells.
Authors: Zhang Y, Cao H Abstract C-reactive protein (CRP) is an important predictor of cardiovascular events and plays a role in vascular inflammation and vessel damage. The aim of this study was to investigate the effect of pentameric CRP (pCRP) and monomeric CRP (mCRP) on the production of atherosclerosis-related factors in cultured human coronary artery endothelial cells (HCAECs). HCAECs were treated with pCRP, mCRP, p38 mitogen-activated protein kinase (MAPK) inhibitor SB203580, or transfected with p38 MAPK siRNA. Western blotting was performed to detect the expression of vascular endothelial growth factor (VEG...
Source: Bosnian Journal of Basic Medical Sciences - May 4, 2020 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

Long non-coding RNA PVT1 regulates the migration of hepatocellular carcinoma HepG2 cells via miR-3619-5p/MKL1 axis.
In this study, we investigated the relationship between PVT1 and MKL1 as a novel regulatory mechanism underlying HCC progression. We used HepG2 and Cos‑7 cell lines. Transfection experiments with miR-3619-5p mimics/inhibitor, PVT1, siRNA-PVT1, MKL1, or siRNA-MKL1 were performed. RNA and protein levels were analyzed by quantitative reverse transcription PCR and Western blot, respectively. Cell migration was assessed by Transwell assay. Luciferase assays, RNA-FISH, RNA immunoprecipitation, and chromatin immunoprecipitation assays were performed to confirm the interaction between PVT1, miR-3619-5p, and MKL1 in HCC cells. Ov...
Source: Bosnian Journal of Basic Medical Sciences - March 12, 2020 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

MALAT1 inhibits the Wnt/ β-catenin signaling pathway in colon cancer cells and affects cell proliferation and apoptosis.
MALAT1 inhibits the Wnt/β-catenin signaling pathway in colon cancer cells and affects cell proliferation and apoptosis. Bosn J Basic Med Sci. 2019 Nov 15;: Authors: Zhang J, Li Q, Xue B, He R Abstract Metastasis associated lung adenocarcinoma transcript 1 (MALAT1) is a highly conserved long noncoding RNA, which has been related to various pathological processes, including cancer. The role and mechanism of MALAT1 in colon cancer are not clear. We investigated MALAT1 expression in colon cancer tissues, the effect of MALAT1 on proliferation and apoptosis of SW480 cells, and the signaling pathway involved...
Source: Bosnian Journal of Basic Medical Sciences - November 19, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

Integrin beta 4 (ITGB4) and its tyrosine-1510 phosphorylation promote pancreatic tumorigenesis and regulate the MEK1-ERK1/2 signaling pathway.
In this study we investigated the role of integrin b4 (ITGB4) and its phosphorylation at tyrosine Y1510 (p-ITGB4-Y1510) in the tumorigenesis of pancreatic cancer. We analyzed the expression of ITGB4 and p-ITGB4-Y1510 in pancreatic cancer tissue and cell lines using immunohistochemistry, Western blot, or semi-quantitative reverse transcription PCR. ITGB4 and p-ITGB4-Y1510 were highly expressed in pancreatic cancer (n = 176) compared with normal pancreatic tissue (n = 171). High p-ITGB4-Y1510 expression correlated with local invasion and distant metastasis of pancreatic cancer, and high ITGB4 was significantly associated wit...
Source: Bosnian Journal of Basic Medical Sciences - June 28, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

PCAT1 is a poor prognostic factor in endometrial carcinoma and associated with cancer cell proliferation, migration and invasion.
In this study, we used 89 EC tissues and HEC-1B, Ishikawa, RL95-2 and AN3CA EC cell lines. We found elevated expression levels of PCAT1 in EC tissues and cell lines using reverse transcription qPCR (RT-qPCR). The prognostic value of PCAT1 was determined using Kaplan-Meier survival and Cox regression analysis. The results showed that higher PCAT1 expression was positively correlated with FIGO stage, myometrial invasion, lymph node metastasis, and a shorter overall survival. A series of functional assays showed that the knockdown of PCAT1 by small interfering RNA (siRNA) targeting PCAT1 (siPCAT1) suppressed cell proliferatio...
Source: Bosnian Journal of Basic Medical Sciences - May 29, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

EP1 receptor is involved in prostaglandin E2-induced osteosarcoma growth.
Authors: Niu JC, Ma N, Liu W, Wang PJ Abstract Recent studies showed that the activation of prostaglandin (PG) receptor EP1 promotes cell migration and invasion in different cancers. The aim of this study was to investigate the role of EP1 in the proliferation of osteosarcoma (OS) cells in vitro and in vivo. EP1 mRNA and protein levels were analyzed by real-time RT-PCR and Western blot, respectively in human OS cell lines MG63, OS732, U-2OS, HOS and SAOS-2 compared to human fetal osteoblastic hFOB 1.19 cells. MG63 cells were treated with PGE2, EP1 specific agonist 17-PT-PGE2, 17-PT-PGE2 + EP1 specific antagonist SC...
Source: Bosnian Journal of Basic Medical Sciences - April 19, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

Upregulated expression of MNX1-AS1 long noncoding RNA predicts poor prognosis in gastric cancer.
In this study, we investigated the clinicopathological significance and biological function of MNX1-AS1 in gastric cancer (GC). The expression of MNX1-AS1 was analyzed by qRT-PCR in 96 GC and adjacent non-tumor tissues in relation to clinicopathological features and overall survival (OS) of patients, and in five human GC cell lines compared to a normal gastric epithelial cell line. Loss-of-function experiments using small interfering RNA (siRNA) targeting MNX1-AS1 (si-MNX1-AS1) were carried out in AGS and MGC-803 GC cell lines. Cell proliferation (CCK-8 assay), migration (Transwell) and invasion (Transwell Matrigel), and p...
Source: Bosnian Journal of Basic Medical Sciences - March 5, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

Analysis of long non-coding RNA (lncRNA) expression in hepatitis B patients.
Authors: Yılmaz Susluer S, Kayabasi C, Ozmen Yelken B, Asik A, Celik D, Balci Okcanoglu T, Serin Senger S, Biray Avci C, Kose S, Gunduz C Abstract Long non-coding RNAs (lncRNAs) have been implicated in numerous biological processes, including epigenetic regulation, cell-cycle control, and transcriptional/translational regulation of gene expression. Differential expression of lncRNAs and disruption of the regulatory processes are recognized as critical steps in cancer development. The role of lncRNAs in hepatitis B virus (HBV) infection is not well understood. Here we analyzed the expression of 135 lncRNAs in plasm...
Source: Bosnian Journal of Basic Medical Sciences - April 21, 2018 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

CD44 silencing decreases the expression of stem cell-related factors induced by transforming growth factor β1 and tumor necrosis factor α in lung cancer: Preliminary findings.
Authors: Nurwidya F, Takahashi F, Kato M, Baskoro H, Hidayat M, Wirawan A, Takahashi K Abstract The mechanism underlying increased concentrations of cancer stem cells (CSCs)-associated factors in non-small cell lung cancer (NSCLC) cells treated with transforming growth factor β1 (TGFβ1) and tumor necrosis factor α (TNFα), is still not clear. The purpose of this study was to investigate the possible role of CD44 in the regulation of CSC-associated genes, by analyzing the effect of CD44 knockdown on the expression of CSC-associated genes. A549, a NSCLC cell line that expresses CD44 antigen, was treated with TGFβ...
Source: Bosnian Journal of Basic Medical Sciences - April 29, 2017 Category: Journals (General) Tags: Bosn J Basic Med Sci Source Type: research

Small interfering RNA-mediated silencing of nicotinamide phosphoribosyltransferase (NAMPT) and lysosomal trafficking regulator (LYST) induce growth inhibition and apoptosis in human multiple myeloma cells: A preliminary study.
In this study, the effects of small interfering RNA (siRNA)-mediated silencing of NAMPT and LYST on cell proliferation and apoptosis were evaluated in RPMI 8226 myeloma cells. Transfection efficiencies were determined by quantitative real time reverse transcriptase PCR. Cell proliferation was determined using MTT assay, while apoptosis was analyzed with flow cytometry using Annexin V-fluorescein isothiocyanate/propidium iodide assay. The NAMPT protein expression in siRNA-treated cells was estimated by enzyme-linked immunosorbent assay. Our results showed that NAMPT and LYST were successfully knockdown by siRNA transfection...
Source: Bosnian Journal of Basic Medical Sciences - October 20, 2016 Category: Journals (General) Tags: Bosn J Basic Med Sci Source Type: research

Nod-like receptor protein 3 inflammasome activation by Escherichia coli RNA induces transforming growth factor beta 1 secretion in hepatic stellate cells.
Authors: Wang H, Liu S, Wang Y, Chang B, Wang B Abstract Nod-like receptor protein 3 (NLRP3) inflammasome has been implicated in alcoholic liver disease. Chronic alcohol consumption enhances gut permeability and causes microbial translocation. The present study explored the activation of the NLRP3 inflammasome by Escherichia coli RNA in hepatic stellate cells (HSCs), and the potential role of NLRP3 inflammasome in hepatic fibrosis. E. coli RNA transfection induced HSC-T6 cells to secrete and express mature interleukin-1 beta (IL-1β), which was abolished by NLRP3 siRNA pretreatment. In addition, E. coli RNA transfe...
Source: Bosnian Journal of Basic Medical Sciences - January 20, 2016 Category: Journals (General) Tags: Bosn J Basic Med Sci Source Type: research