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Ning Zhang, Xin Meng, Lijun Mei, Jian Hu, Chedong Zhao, Wei Chen
BACKGROUND/AIMS: Long non-coding RNAs (lncRNAs) are theorized to play key roles in the development of heart diseases. However, the role of lncRNAs in cardiomyocyte apoptosis is largely unknown. The present study examined the role of lncRNA SNHG1 in the human cardiomyocytes (HCMs) apoptosis and explored the underlying molecular mechanisms. METHODS: SNHG1, miR-195 and mRNA expression was detected by qRT-PCR; protein level was determined by western blot; cell viability was detected by MTT assay; cell apoptosis was evaluated by flow cytometry and caspase-3 activity assay; the interaction between SNHG1 and miR195 was examined by using luciferase reporter assay...
2018: Cellular Physiology and Biochemistry
Vahid Khori, Ali Mohammad Alizadeh, Solmaz Khalighfard, Yassaman Heidarian, Hamid Khodayari
Oxytocin (OT) has the suppressive effects on breast tumor formation and development. We hypothesized that OT through the NF-κB inhibition can induce the miR-195 up-regulation which it can promote the cell apoptosis and inhibit the cell proliferation. Thirty-two BALB/c female mice were equally divided into four groups to study the effects of OT and atosiban (ATO) (an oxytocin receptor antagonist) on the mammary tumor growth. The animal weight, OT plasma concentration, and the tumor weight and volume were measured...
September 2018: Peptides
Tingting Fan, Yu Mao, Qinsheng Sun, Feng Liu, Jin-Shun Lin, Yajie Liu, Junwei Cui, Yuyang Jiang
Serum circulating microRNAs (c-miRNAs) are serving as useful biomarkers for cancer diagnosis. Here, we describe the development of a one-step branched rolling circle amplification (BRCA) method to measure serum c-miRNAs levels for early diagnosis of breast cancer. Four c-miRNAs, c-miRNA16 (c-miR-16), c-miRNA21 (c-miR-21), c-miRNA155 (c-miR-155), and c-miRNA195 (c-miR-195) were isolated from the serum of 49 breast cancer patients (stages I-IV) and 19 healthy controls, and analyzed using one-step BRCA. The serum levels of c-miR16, c-miR21, c-miR155, and c-miR195 were higher (P < 0...
September 2018: Cancer Science
Mauro Mozael Hirsch, Janaína Brusco, Tamara Vaccaro, Rogerio Margis, Jorge E Moreira, Carmem Gottfried, Alberto A Rasia-Filho
The posterodorsal medial amygdala (MePD) is a sex steroid-sensitive and sexually dimorphic subcortical area that dynamically modulates social behaviors in rats. As different microRNA (miRNA) can act as post-transcriptional regulators of synaptic processing, we addressed changes that occur in miRNA expression in the MePD of males and females along the estrous cycle. The expression of miR25-3p, miR132-3p, miR138-5p, miR181a-5p, miR195-5p, and miR199a-5p, involved in neuronal cytoskeleton remodeling and synaptic plasticity, were evaluated by RT-qPCR...
May 21, 2018: Neuroscience
Tsuyoshi Ozawa, Raju Kandimalla, Feng Gao, Hiroaki Nozawa, Keisuke Hata, Hiroshi Nagata, Satoshi Okada, Daisuke Izumi, Hideo Baba, James Fleshman, Xin Wang, Toshiaki Watanabe, Ajay Goel
Most T1 colorectal cancers treated by radical surgery can now be cured by endoscopic submucosal dissection. Although 70%-80% of T1 colorectal cancers are classified as high risk, <16% of these patients actually have lymph node metastases. Biomarkers are needed to identify patients with T1 cancers with the highest risk of metastasis, to prevent unnecessary radical surgery. We collected data from The Cancer Genome Atlas and identified 5 microRNAs (MIR32, MIR181B, MIR193B, MIR195, and MIR411) with significant changes in expression in T1 and T2 colorectal cancers with vs without lymph node metastases...
March 2018: Gastroenterology
Ying Liu, Xin Wu, Yuan Gao, Jigang Zhang, Dandan Zhang, Shengying Gu, Guanhua Zhu, Gaolin Liu, Xiaoyu Li
Liver cancer is the fifth most commonly diagnosed malignancy, of which hepatocellular carcinoma (HCC) represents the dominating histological subtype. Antiangiogenic therapy aimed at vascular endothelial growth factor (VEGF) has shown promising but deficient clinical prospects on account of vasculogenic mimicry, a highly patterned vascular channel distinguished from the endothelium-dependent blood vessel, which may function as blood supply networks occurring in aggressive tumors including HCC. In this study, we used a new cationic peptide, disulfide cross-linked stearylated polyarginine peptide modified with histidine (H3R5), as a reducible vector, cell penetrating peptide-modified aptamer (ST21) with specific binding to HCC cells to conjugate to peptide H3R5 as the targeting probe, miRNA-195 (miR195) as a powerful gene drug to inhibit VEGF, and fasudil to suppress vasculogenic mimicry by blocking ROCK2, all of which were simultaneously encapsulated in the same nanoparticles...
2016: International Journal of Nanomedicine
Gloria Bertoli, Claudia Cava, Isabella Castiglioni
Dysregulation of microRNAs (miRNAs) is involved in the initiation and progression of several human cancers, including breast cancer (BC), as strong evidence has been found that miRNAs can act as oncogenes or tumor suppressor genes. This review presents the state of the art on the role of miRNAs in the diagnosis, prognosis, and therapy of BC. Based on the results obtained in the last decade, some miRNAs are emerging as biomarkers of BC for diagnosis (i.e., miR-9, miR-10b, and miR-17-5p), prognosis (i.e., miR-148a and miR-335), and prediction of therapeutic outcomes (i...
2015: Theranostics
Hoda A Hagrass, Samar Sharaf, Heba F Pasha, Enas A Tantawy, Randa H Mohamed, Rasha Kassem
BACKGROUND: The potential use of microRNAs (miRNAs) as ideal tumor markers has been the focus of recent research. OBJECTIVE: Our hypothesis was that circulating miRNAs are differentially expressed in pretherapeutic sera of breast cancer patients compared to controls. MATERIALS AND METHODS: Using real-time quantitative polymerase chain reaction (qPCR) analysis, levels of 5 candidate miRNAs (miR10b, miR34a, miR155, miR195 and miR16) were quantified in sera of breast cancer patients and control individuals...
May 2015: Genes & Cancer
Jocelyn Charlton, Richard D Williams, Neil J Sebire, Sergey Popov, Gordan Vujanic, Tasnim Chagtai, Marisa Alcaide-German, Tiffany Morris, Lee M Butcher, Paul Guilhamon, Stephan Beck, Kathy Pritchard-Jones
BACKGROUND: Wilms tumours (WTs) are characterised by several hallmarks that suggest epimutations such as aberrant DNA methylation are involved in tumour progression: loss of imprinting at 11p15, lack of recurrent mutations and formation of nephrogenic rests (NRs), which are lesions of retained undifferentiated embryonic tissue that can give rise to WTs. METHODS: To identify such epimutations, we performed a comprehensive methylome analysis on 20 matched trios of micro-dissected WTs, NRs and surrounding normal kidneys (NKs) using Illumina Infinium HumanMethylation450 Bead Chips and functionally validated findings using RNA sequencing...
2015: Genome Medicine
Ozora Tsukamoto, Kiyonori Miura, Hiroyuki Mishima, Shuhei Abe, Masanori Kaneuchi, Ai Higashijima, Shoko Miura, Akira Kinoshita, Koh-ichiro Yoshiura, Hideaki Masuzaki
OBJECTIVE: This study aimed to identify a set of endometrioid endometrial carcinoma EEC-associated microRNAs (miRNAs) in tissue and plasma, and evaluate their clinical significance. METHODS: A set of EEC-associated miRNAs in tissue and plasma was identified by next-generation sequencing (NGS), which could enable in-depth characterization of the global repertoire of miRNAs. RESULTS: NGS identified 11 candidate EEC-associated miRNAs. Quantitative reverse-transcriptase PCR identified 8 EEC-associated miRNAs in tissue (upregulated: miR-499, miR-135b, miR-205, downregulated: miR-10b, miR-195, miR-30a-5p, miR-30a-3p and miR-21)...
March 2014: Gynecologic Oncology
C B Lajer, E Garnæs, L Friis-Hansen, B Norrild, M H Therkildsen, M Glud, M Rossing, H Lajer, D Svane, L Skotte, L Specht, C Buchwald, F C Nielsen
BACKGROUND: Although the role of human papilloma virus (HPV) in cervical squamous cell carcinoma (CSCC) is well established, the role in head and neck SCC (HNSCC) is less clear. MicroRNAs (miRNAs) have a role in the cancer development, and HPV status may affect the miRNA expression pattern in HNSCC. To explore the influence of HPV in HNSCC, we made a comparative miRNA profile of HPV-positive (HPV+) and HPV-negative (HPV-) HNSCC against CSCC. METHODS: Fresh frozen and laser microdissected-paraffin-embedded samples obtained from patients with HPV+/HPV- HNSCC, CSCC and controls were used for microarray analysis...
April 24, 2012: British Journal of Cancer
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