Influence of Erythropoietin on Microvesicles Derived from Mesenchymal Ste cells(MSC) protecting renal function of Chronic Kidney Disease
ABSTRACT: miRNA profiles of the MSC-MVs and EPO-MVs were analyzed with a quantitative PCR (qPCR)-based array of the whole mice genome. Further analysis revealed differences in the miRNAs of 212 EPO-MVs (fold change ≥ 1.5 compared to the MSC-MVs), which constituted approximately 22.64% of all of the evaluated mouse miRNAs. Of all of the differences, 70.28% of the changes in the EPO-MV group involved upregulation To study the differential miRNA expression in MV and EPO-MV which might contributed to the better treatment in chronic kidney disease, we performed miRNA expression profiling of the culture supernatant of MSC with or without EPO incubation using the miRCURY LNA Array (v.18.0) (Exiqon, Vedbaek, Denmark).
Project description:miRNAs comprise a family of small non-coding RNA molecules that have emerged as key post-transcriptional regulators of gene expression. Aberrant miRNA expression has been linked to various human tumors. This study was aimed to identify new aberrant expression miRNA in esophageal squamous cell carcinoma (ESCC) and invested the potential functions in this tumor. miRNA microarray analysis with 4 ESCC and adjacent non-tumor tissues was performed.
Project description:We performed miRNA microarray analysis to find differentially expressed miRNAs between nasopharyngeal carcinoma patients and normal control subjects In this study, 20 nasopharyngeal carcinoma patients and 10 normal control subjects were selected to collect plasma samples and perform miRNA microarray profiling
Project description:Herein expression trends of host miRNA were measured in HIV-1 latently infected and persistent replication cells, as well as the control cells. HIV-1 latency infection was established by infecting CEM-SS lymphocytes with HIV-1 Bru strain. After selection and long-term culture, the chronically infected cell showed the characteristics of latency definition: 1. The provirus was intergrated in to the host genome.2. No viral expression could be detected during culture.3 .Cell stimulators, such as TNFa,PMA, etc, reactivate the viral expression. As expected, miRNA trend was different in HIV-1 latency when compared to the control or HIV-1 replication. A subset of miRNAs is enriched in HIV-1 latency model. The observation reinforces the concept of active HIV-1 interplay with host small RNAs that modulate HIV-1 infection mode. In this study, the in vitro steady cell culture was used to explore the miRNA transcription signatures in HIV-1 infection. miRNA profiles were performed and compared among normal control,HIV-1 latency and HIV-1 replication .
Project description:We compared miRNA expression profiles among 5 groups of HepG2 cells treated with various concentrations (0,100,200 nM) of triptolide for 12 h or 24 h. Two-condition experiment, triptolide intervention vs. without intervention. Biological replicates: 3 control, 3 treated, independently grown and harvested. One replicate per array.
Project description:To examine the miRNA expression profile of the profibrogenic macrophages, we compared miRNA expression in untreated versus IL-4 or IL-13-treated macrophages using miRNA microarray.IL-4 and IL-13 treatment resulted in marked changes in 18 and 19 miRNAs in macrophages, respectively.(n=3, fold changes>2, P<0.05) Total RNA from human primary macrophages (n=3) treated with or without 20 ng/ml IL-4 or 20ng/ml IL-13 for 48 hr was isolated with a mirVana miRNA Isolation kit (Ambion, Foster, CA). The miRNA expression profile of the samples were examined using miRCURY LNA™ arrays (v18.0; covering 1921 human miRNAs, Exiqon ,Vedbaek, Denmark).
Project description:We compared time-series miRNA expression profile in high-phosphate–stimulated rat vascular smooth muscle cells at 0, 3, and 12 hr respectively. Total RNA of rat VSMCs stimulated with 2.6 mM inorganic phosphate for 0, 3 or 12 hr was harvested by the Trizol method (Invitrogen) or use of the miRNeasy mini kit (QIAGEN). The samples were labeled by use of the miRCURY™ Hy3™/Hy5™ Power labeling kit and hybridized on the miRCURY™ LNA Array (v.16.0) (Exiqon, Denmark). After washing slides were scanned by use of the Axon GenePix 4000B microarray scanner. Expressed data were normalized by the Median normalization method, and then relative fold change at each time was detected by level of fluorescence in the phosphate-treated group normalized to that in the control group. Finally, hierarchical clustering was performed for miRNA expression profiling. Student t test was used to compare differences between 2 groups, and a 1.5-fold change was considered significant.
Project description:To investigate the role of TGF-β1-regulated miRNAs in the progression of colorectal cancer,we performed comprehensive miRMA microarray analysis on RNA derived from CT26 cell lines and TGF-β1 knock-down CT26 cell lines. We identified a novel set of TGF-β1-related miRNAs. Total RNA was isolated from TGF-β1-knock down CT26 cell lines and controls.Three-condition experiment: Locked nucleic acid microarray analyses to obtain miRNA expression profiles independently in TGFβ1-knocked down CT26 and control cell line at three different time (24hours, 48hours and 72hours).Biological replicates: 1 CT26 cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo for 24hours, 1 CT26 cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo for 48hours, 1 CT26 cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo for 72hours, 1 CT26 cells stably transfected with shRNA-Control- pSUPER gfp-neo for 24hours, 1 CT26 cells stably transfected with shRNA- Control- pSUPER gfp-neo for 48hours, 1 CT26 cells stably transfected with shRNA-Control- pSUPER gfp-neo for 72hours, independently grown and harvested. One replicate per array.
Project description:Neurotoxicity of formaldehyde (FA) in the human health attracted intensive studies Long-term exposure to FA leads to learning and memory decline and is responsible for the multiple chemical sensitivity (MCS) or sick building syndrome (SBS). It was cleared that Formaldehyde impairs Learning and Memory in Hippocampal. however ,it is unclear if FA can disturb the olfactory bulb function miRNAs alterations were related to environmental chemical exposure. It was reported that FA inhale altered miRNAs expression in the nasal Epithelium and lung cells. In the present study, FA inhalation significatly alters miRNA expression profiles within olfactory bulb Eight week ICR male mouse. Mice were randomly assigned to three groups. The FA group exposed to 3ppm FA for six hours for consecutive 1 and 7days in a chamber which was described previously. The standard group was kept in same condition except the FA. After expose, both group mice were deeply anesthetized with isoflurane and decapitated. The OB was rapidly dissected
Project description:Achaete scute-like 2 (Ascl2), a basic helix-loop-helix (bHLH) transcription factor, controls the fate of intestinal stem cells. However, the role of Ascl2 in colon cancer progenitor cells remains unknown. The cell lines HT-29 (47.5-95% of CD133+ population) and LS174T (0.45% of CD133+ population) were chosen for functional evaluation of Ascl2 in colon cancer progenitor cells after gene knockdown by RNA interference. The microRNA (miRNA) microarrays identified 26 two-fold up-regulated miRNAs and 58 two-fold down-regulated miRNAs in shRNA-Ascl2/HT-29 cells and 178 two-fold up-regulated miRNAs and 172 two-fold down-regulated miRNAs in shRNA-Ascl2/LS174T cells. Two-condition experiment: shRNA-Ascl2/HT-29 cells vs. shRNA-Ctr/HT-29 cells, and shRNA-Ascl2/LS174T cells vs. shRNA-Ctr/LS174T cells. Biological replicates: 1 HT-29 cells stably transfected with shRNA-Ascl2/EGFP, 1 LS174T cells stably transfected with shRNA-Ascl2/EGFP, 1 HT-29 cells stably transfected with shRNA-Control/EGFP, and 1 LS174T cells stably transfected with shRNA-Control/EGFP, independently grown and harvested. One replicate per array.
Project description:To investigate the role of TGF-β1-regulated miRNAs in the progression of RMS,we performed comprehensive miRMA microarray analysis on RNA derived from typical RMS cell lines and TGF-β1 knock-down cell lines. We identified a novel set of TGF-β1-related miRNAs. Total RNA was isolated from TGF-β1-knock down rhabdmyosarcoma cell lines and controls. Three-condition experiment: shRNA-TGF-β1/RD cells vs. shRNA-Control/RD cells, shRNA-TGF-β1/SMS-CTR cells vs. shRNA-Control/ SMS-CTR cells, and shRNA-TGF-β1/RH28 cells vs. shRNA-Control/RH28 cells. Biological replicates: 1 RD cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo, 1SMS-CTR cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo, 1RH28 cells stably transfected with shRNA-TGF-β1- pSUPER gfp-neo, 1RD cells stably transfected with shRNA-Control- pSUPER gfp-neo, 1SMS-CTR cells stably transfected with shRNA-Control- pSUPER gfp-neo, and 1RH28 cells stably transfected with shRNA-Control- pSUPER gfp-neo, independently grown and harvested. One replicate per array.