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https://www.readbyqxmd.com/read/28738498/microrna-299-3p-suppresses-proliferation-and-invasion-by-targeting-vegfa-in-human-colon-carcinoma
#1
Jia-Yong Wang, Jin-Bo Jiang, Yuan Li, Yan-Lei Wang, Yong Dai
Accumulating evidences have shown that microRNAs (miRNAs) are vital regulators and possess huge capabilities in post-transcriptional control. Although a large number of miRNAs have been identified to be dysregulated in human cancers especially in colon cancer, our understandings of the function of most miRNAs are still largely limited. In this study, we have demonstrated that miR-299-3p plays a critical role in suppressing colon carcinoma progression by targeting Vascular Endothelial Growth Factor A (VEGFA)...
July 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738343/mir-26a-b-inhibit-tumor-growth-and-angiogenesis-by-targeting-the-hgf-vegf-axis-in-gastric-carcinoma
#2
Yiran Si, Haiyang Zhang, Tao Ning, Ming Bai, Yi Wang, Haiou Yang, Xinyi Wang, Jialu Li, Guoguang Ying, Yi Ba
BACKGROUND/AIMS: Abnormal expression of HGF is found in various cancers and correlates with tumor proliferation, metastasis and angiogenesis. However, the regulatory mechanism of the HGF-VEGF axis remains unclear. METHODS: The expression characteristic of HGF in human gastric cancer tissues was shown by an immunohistochemistry assay, and the expression levels of target protein were detected by Western blot. The relative levels of miR-26a/b and target mRNA were examined by qRT-PCR...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28738328/a-novel-role-for-mir-520a-3p-in-regulating-egfr-expression-in-colorectal-cancer
#3
Rui Zhang, Rui Liu, Chang Liu, Yahan Niu, Jianguo Zhang, Baoliang Guo, Chen-Yu Zhang, Jing Li, Jie Yang, Xi Chen
BACKGROUND/AIMS: MicroRNAs (miRNAs) have been consistently demonstrated to be involved in colorectal cancer as either tumour oncogenes or tumour suppressors. However, the detailed role of miR-520a-3p in colorectal cancer remains poorly understood. METHODS: Quantitative RT-PCR and western blotting assays were used to measure miR-520a-3p and EGFR expression levels in colorectal cancer tissues, respectively. Luciferase reporter assay was employed to validate the direct targeting of EGFR by miR-520a-3p...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28735896/argonaute-clip-defines-a-deregulated-mir-122-bound-transcriptome-that-correlates-with-patient-survival-in-human-liver-cancer
#4
Joseph M Luna, Juan M Barajas, Kun-Yu Teng, Hui-Lung Sun, Michael J Moore, Charles M Rice, Robert B Darnell, Kalpana Ghoshal
MicroRNA-122, an abundant and conserved liver-specific miRNA, regulates hepatic metabolism and functions as a tumor suppressor, yet systematic and direct biochemical elucidation of the miR-122 target network remains incomplete. To this end, we performed Argonaute crosslinking immunoprecipitation (Argonaute [Ago]-CLIP) sequencing in miR-122 knockout and control mouse livers, as well as in matched human hepatocellular carcinoma (HCC) and benign liver tissue to identify miRNA target sites transcriptome-wide in two species...
July 13, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28734041/mir-103-functions-as-a-tumor-suppressor-by-directly-targeting-programmed-cell-death-10-in-nsclc
#5
Dong Yang, Jian-Jun Wang, Jin-Song Li, Qian-Yu Xu
NSCLC accounts for about 85% of all lung cancer cases. Absence of miR-103 has recently identified to be associated withmetastatic capacity of primary lung tumors. However, the exact role of miR-103 in NSCLC and the molecular mechanism is unclear. In the present study, we showed that miR-103 expression was reduced in NSCLC tissues and cells. miR-103 expression was negatively correlated with tumor size and stage. The overall survival was longer in patients with higher miR-103 level than in those with lower miR-103 expression...
July 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28733560/mir-122-socs1-jak2-axis-regulates-allergic-inflammation-and-allergic-inflammation-promoted-cellular-interactions
#6
Kyeonga Noh, Misun Kim, Youngmi Kim, Hanearl Kim, Hyuna Kim, Jaehwan Byun, Yeongseo Park, Hansoo Lee, Yun Sil Lee, Jongseon Choe, Young Myeong Kim, Dooil Jeoung
The regulatory role of suppressor of cytokine signaling 1 (SOCS1) in inflammation has been reported. However, its role in allergic inflammation has not been previously reported. SOCS1 mediated in vitro and in vivo allergic inflammation. Histone deacetylase-3 (HDAC3), a mediator of allergic inflammation, interacted with SOCS1, and miR-384 inhibitor, a positive regulator of HDAC3, induced features of allergic inflammation in an SOCS1-dependent manner. miRNA array analysis showed that the expression of miR-122 was decreased by antigen-stimulation...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733476/mir-30e-targets-glipr-2-to-modulate-diabetic-nephropathy-in-vitro-and-in-vivo-experiments
#7
Dong Zhao, Jinhua Jia, Hong Shao
The objectives of this study are to investigate the effect of miR-30e targeting GLIPR-2 on the pathological mechanism of DN. The renal tissues of db/db and db/m mice at different age of weeks were stained with PAS. qRT-PCR was applied to detect the expression of miR-30e and GLIPR-2, not only in the renal tissues of mice but also in the renal tubular epithelial cells (RTECs). By luciferase reporter gene assays, we found the 3'-UTR of the GLIPR-2 mRNA as a direct target of miR-30e. The RTECs cultured in high glucose were divided into blank control, NC, miR-30e mimics, miR-30e inhibitors, miR-30e inhibitor + si-GLIPR-2 and si-GLIPR-2 groups...
August 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28732575/beraprost-sodium-a-prostacyclin-analogue-reduces-fructose-induced-hepatocellular-steatosis-in-mice-and-in-vitro-via-the-microrna-200a-and-sirt1-signaling-pathway
#8
Pengyuan Zhang, Lijuan Xu, Hongyu Guan, Liehua Liu, Juan Liu, Zhimin Huang, Xiaopei Cao, Zhihong Liao, Haipeng Xiao, Yanbing Li
PURPOSE: To determine whether beraprost sodium, a prostacyclin analogue, could reduce hepatic lipid accumulation induced by fructose in mice and cultured human hepatocytes, and to investigate the expression of microRNAs and the sirtuin 1 (SIRT1) pathway. METHODS: Male C57BL/6JNju mice were divided into three groups and fed one of the following diets: a normal diet, a high fructose diet, or a high fructose diet with beraprost sodium treatment. In addition, human-derived HepG2 cells were cultured and treated with fructose (25mmol/L) with or without beraprost sodium (10μmol/L) for 24h, and transfected with small interfering RNA (siRNA) against SIRT1, miR-200a mimic, or miR-200a inhibitor for 48h...
August 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28732393/microrna-30a-suppresses-tumor-progression-by-blocking-ras-raf-mek-erk-signaling-pathway-in-hepatocellular-carcinoma
#9
Kun Zhou, Xiaoyu Luo, Yu Wang, Dachun Cao, Gang Sun
Emerging reports suggest microRNAs (miRNAs) play a vital role in the progression of malignant tumors. MiR-30a is downregulated in a variety of cancers and acts as a tumor suppressing gene. However, the molecular mechanisms of miRNA-30a in hepatocellular carcinoma (HCC) are still unclear. Hereby, in this study, we detected that miR-30a expression was significantly down-regulated in both HCC tissues compared with adjacent non-cancerous liver tissues, and we also observed that miR-30a expression was lower in HCC cell lines than that of normal controls...
July 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28731196/microrna-106a-promotes-cell-migration-and-invasion-by-targeting-tissue-inhibitor-of-matrix-metalloproteinase-2-in-cervical-cancer
#10
Xia Li, Qi Zhou, Ling Tao, Chunxia Yu
Increasing evidence has demonstrated that miRNAs play a critical role in tumor development and progression. Previous studies have revealed that miR-106a is abnormally expressed in various cancers. However, its function and underlying mechanism in cervical cancer (CC) remains unknown. In this study, we confirmed that the expression of miR-106a was significantly upregulated in both CC cell lines and tissues by qRT-PCR. The increased expression of miR-106a was obviously associated with adverse prognostic features...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731181/mir%C3%A2-21-promotes-%C3%AE-%C3%A2-sma-and-collagen-i-expression-in-hepatic-stellate-cells-via-the-smad7-signaling-pathway
#11
Rong-Quan Fu, Dan-Ping Hu, Yi-Bing Hu, Liang Hong, Qing-Feng Sun, Ji-Guang Ding
The aim of the present study was to investigate the role of microRNA (miR)‑21 in regulating collagen I and Smad7 expression in activated rat hepatic stellate cells (HSCs). Rat HSCs were isolated by single‑step density gradient centrifugation with Nycodenz. Cellular content of miR‑21, SMAD7, α‑smooth muscle actin (α‑SMA), collagen type I alpha 1 (COLLA1) and COLL alpha 2 (A2) mRNA was examined by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR), and cellular content of Smad7 and α‑SMA protein was detected by western blotting...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730912/rhd-specific-microrna-for-regulation-of-the-del-blood-group-integration-of-computational-and-experimental-approaches
#12
J Thongbut, U Kerdpin, T Sakuldamrongpanich, C Issarankura-Na-Ayudhya, P Nuchnoi
OBJECTIVE: The discovery of specific microRNAs (miRNA) mediates a better understanding of molecular mechanisms, diagnosis and prognosis of complex phenotypes. Synthesis of the RhD blood group involves multiple factors causing variation in the expression of RHD antigens. The mechanism underlying the extremely weak expression of RHD antigen associated with the RHD variant called DEL (D-elute) is incompletely understood. Down-regulation of gene expression through miRNA is a guide to the potential involvement of miRNAs in the DEL blood group...
July 21, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28728506/microsatellite-instability-and-promoter-hypermethylation-of-dna-repair-genes-in-hematologic-malignancies-a-forthcoming-direction-toward-diagnostics
#13
Priyanjali Bhattacharya, Trupti N Patel
OBJECTIVE: The objective of our review is to highlight the significance of microsatellite hypervariation in diagnostics of hematologic malignancies. METHODS: For the past few decades, extensive experiments in cancer research have explored all the possible pathways and a number of deleterious mutations that either make the tumor suppressor genes (TSGs) dysfunctional or cause the proto-oncogenes to behave abnormally by changing the cellular phenotype hence rendering disease...
July 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28727754/dysregulation-of-endothelial-colony-forming-cell-function-by-a-negative-feedback-loop-of-circulating-mir-146a-and-146b-in-cardiovascular-disease-patients
#14
Ting-Yu Chang, Wei-Chi Tsai, Tse-Shun Huang, Shu-Han Su, Chih-Young Chang, Hsiu-Yen Ma, Chun-Hsien Wu, Chih-Yung Yang, Chi-Hung Lin, Po-Hsun Huang, Cheng-Chung Cheng, Shu-Meng Cheng, Hsei-Wei Wang
Functional impairment of endothelial colony-forming cells (ECFCs), a specific cell lineage of endothelial progenitor cells (EPCs) is highly associated with the severity of coronary artery disease (CAD), the most common type of cardiovascular disease (CVD). Emerging evidence show that circulating microRNAs (miRNAs) in CAD patients' body fluid hold a great potential as biomarkers. However, our knowledge of the role of circulating miRNA in regulating the function of ECFCs and the progression of CAD is still in its infancy...
2017: PloS One
https://www.readbyqxmd.com/read/28724212/the-effects-of-microrna-98-inhibits-cell-proliferation-and-invasion-by-targeting-stat3-in-nasopharyngeal-carcinoma
#15
Juying Liu, Wei Chen, Zhenzhang Chen, Jing Wen, Hongliang Yu, Feijiang Wang, Lirong Wu, Xia He
MicroRNA-98 (miR-98) is downregulated in many tumors, and is closely related to tumor progression. In addition, it shows anticarcinogenic functions in various tumor. However, few study show that the biological function and regulatory mechanisms of miR-98 in nasopharyngeal carcinoma (NPC) progression. The identification and its target genes which regulate by dysregulated miRNAs may strengthen our understanding of the molecular mechanisms of NPC. In this study, we observe that miR-98 is not only significantly reduced in NPC tissues, but also decreased markedly in NPC cell lines...
July 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28723693/upregulation-of-microrna-876-induces-endothelial-cell-apoptosis-by-suppressing-bcl-xl-in-development-of-atherosclerosis
#16
Kaicheng Xu, Peng Liu, Yue Zhao
BACKGROUND/AIMS: The injury and apoptotic cell death of endothelial cells hallmark the development of atherosclerosis (AS), characterized by dysregulation of lipid homeostasis, immune responses, and formation of coronary plaques. However, the mechanisms underlying the initiation of endothelial cell apoptosis remain ill-defined. Recent evidence suggests a role of microRNAs in the processes of AS-associated endothelial cell apoptosis. Thus, we studied this question in the current study...
July 19, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28723642/suppression-of-microrna-384-enhances-autophagy-of-airway-smooth-muscle-cells-in-asthmatic-mouse
#17
Zhe Cheng, Xi Wang, Lingling Dai, Liuqun Jia, Xiaogang Jing, Ying Liu, Huan Wang, Pengfei Li, Lin An, Meng Liu
Injury to airway smooth muscle (ASM) cells hallmarks the pathological progression of asthma, a chronic inflammatory airway disease. MicroRNAs (miRNAs) play essential roles in the development of asthma as well as airway remodeling. Here we studied the involvement of miRNAs in the regulation of autophagic survival of ASM cells and airway disorder. We analyzed autophagy-associated factors LC3 and Beclin-1 by RT-qPCR and protein blotting in purified airway smooth muscle cells from ovalbumin (OVA)-induced asthmatic mice...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722783/the-association-of-the-placental-mthfr-3-utr-polymorphisms-promoter-methylation-and-mthfr-expression-with-preeclampsia
#18
Abbas Mohammadpour-Gharehbagh, Batool Teimoori, Mehrnaz Narooei-Nejad, Mehrnaz Mehrabani, Ramin Saravani, Saeedeh Salimi
Preeclampsia (PE) is a pregnancy specific complication arises in presence of the placenta and disappears immediately after delivery. Therefore, the aim of the present study was to investigate the possible effects of the placental 3'-UTR rs1537514C>G and rs4846049 C>A polymorphisms and DNA methylation of the MTHFR gene on the MTHFR mRNA expression. The placenta of 74 PE pregnant women and 75 normotensive pregnant women were collected after delivery. The methylation status of the MTHFR promoter was assessed with Methylation Specific PCR(MSP)...
July 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28721582/mir-130b-3p-301b-3p-negatively-regulated-rb1cc1-expression-on-myogenic-differentiation-of-chicken-primary-myoblasts
#19
Jian Xue, Jingwen Xue, Ji Zhang, Dan Li, Lei Jiang
OBJECTIVES: To explore the roles of miR-130b-3p and miR-301b-3p which may regulate Rb1-inducible coiled-coil 1 (Rb1cc1) expression during myogenic differentiation of chicken primary myoblasts. RESULTS: After 4 days of myogenic differentiation, myotubes appeared and after 6 days the cells fused to each other and expression of MyHC could be detected by immunofluorescence staining. TargetScan and RNAhybrid 2.2 showed miR-130b-3p and miR-301b-3p were well complementary with the target site of Rb1cc1 3'-untranslated region (3'-UTR)...
July 18, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28717923/mirna-200a-induce-cell-apoptosis-in-renal-cell-carcinoma-by-directly-targeting-sirt1
#20
Hao Fu, Wenke Song, Xuancai Chen, Tao Guo, Bin Duan, Xinxi Wang, Yachun Tang, Liang Huang, Chi Zhang
Accumulating evidence indicates that microRNAs are implicated in tumor initiation and progression through negatively regulating oncogenes or tumor suppressor genes. In the present study, we report that the expression of miR-200a was significantly lower in renal cell carcinoma (RCC) specimens and RCC cell lines. Restoration of miR-200a suppressed cell growth, arrested cell cycle progression, and promoted cell apoptosis in RCC cell lines. We next used qRT-PCR array technology to identify Sirtuin 1 (SIRT1) as one of the downregulated proteins during miR-200a overexpression in 786-O cells...
July 17, 2017: Molecular and Cellular Biochemistry
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