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https://www.readbyqxmd.com/read/28419554/the-major-mir-31-target-genes-stk40-and-lats2-and-their-implications-in-the-regulation-of-keratinocyte-growth-and-hair-differentiation
#1
Liming Luan, Jianyun Shi, Zhengquan Yu, Thomas Andl
Emerging evidence indicates that even subtle changes in the expression of key genes of signaling pathways can have profound effects. MicroRNAs (miRNAs) are masters of subtleness and generally have only mild effects on their target genes. The microRNA miR-31 is one of the major microRNAs in many cutaneous conditions associated with activated keratinocytes such as the hyperproliferative diseases psoriasis, non-melanoma skin cancer, and hair follicle growth. miR-31 is a marker of the hair growth phase, and in our miR-31 transgenic mouse model it impairs the function of keratinocytes, subsequently leading to aberrant proliferation, apoptosis and differentiation that result in altered hair growth, while loss of miR-31 leads to increased hair growth...
April 17, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28404921/circulating-mir-31-as-an-effective-biomarker-for-detection-and-prognosis-of-human-cancer-a-meta-analysis
#2
Yingjun Ma, Yunfang Chen, Jinbo Lin, Yi Liu, Kai Luo, Yong Cao, Tieqiang Wang, Hongwei Jin, Zhan Su, Haolin Wu, Xiaoliang Chen, Jinquan Cheng
PURPOSE: Circulating miR-31 was found to be associated with cancers detection and prognosis. The present meta-analysis aimed to explore the effect of circulating miR-31 on cancer detection and prognosis. METHOD: The studies were accessed using multiple databases. RevMan5.3, Meta-DiSc 1.4, and STATA14.0 were used to estimate the pooled effects, heterogeneity among studies, and publication bias. RESULTS: A total of 14 studies with 1397 cancer patients and 1039 controls were included...
February 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28398479/clinical-significance-of-mirna-host-gene-promoter-methylation-in-prostate-cancer
#3
Kristina Daniunaite, Monika Dubikaityte, Povilas Gibas, Arnas Bakavicius, Juozas Rimantas Lazutka, Albertas Ulys, Feliksas Jankevicius, Sonata Jarmalaite
Only a part of prostate cancer (PCa) patients has aggressive malignancy requiring adjuvant treatment after radical prostatectomy (RP). Biomarkers capable to predict biochemical PCa recurrence (BCR) after RP would significantly improve preoperative risk stratification and treatment decisions. MicroRNA (miRNA) deregulation has recently emerged as an important phenomenon in tumor development and progression, however, the mechanisms remain largely unstudied. In the present study, based on microarray profiling of DNA methylation in 9 pairs of PCa and noncancerous prostate tissues (NPT), host genes of miR-155-5p, miR-152-3p, miR-137, miR-31-5p, and miR-642a, -b were analyzed for promoter methylation in 129 PCa, 35 NPT, and 17 benign prostatic hyperplasia samples (BPH) and compared to the expression of mature miRNAs and their selected targets (DNMT1, KDM1A, and KDM5B)...
April 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28388926/proof-of-concept-study-profile-of-circulating-micrornas-in-bovine-serum-harvested-during-acute-and-persistent-fmdv-infection
#4
Carolina Stenfeldt, Jonathan Arzt, George Smoliga, Michael LaRocco, Joseph Gutkoska, Paul Lawrence
BACKGROUND: Changes in the levels of circulating microRNAs (miRNAs) in the serum of humans and animals have been detected as a result of infection with a variety of viruses. However, to date, such a miRNA profiling study has not been conducted for foot-and-mouth disease virus (FMDV) infection. METHODS: The relative abundance of 169 miRNAs was measured in bovine serum collected at three different phases of FMDV infection in a proof-of-concept study using miRNA PCR array plates...
April 7, 2017: Virology Journal
https://www.readbyqxmd.com/read/28377766/host-genetic-background-strongly-affects-pulmonary-microrna-expression-before-and-during-influenza-a-virus-infection
#5
Matthias Preusse, Klaus Schughart, Frank Pessler
BACKGROUND: Expression of host microRNAs (miRNAs) changes markedly during influenza A virus (IAV) infection of natural and adaptive hosts, but their role in genetically determined host susceptibility to IAV infection has not been explored. We, therefore, compared pulmonary miRNA expression during IAV infection in two inbred mouse strains with differential susceptibility to IAV infection. RESULTS: miRNA expression profiles were determined in lungs of the more susceptible strain DBA/2J and the less susceptible strain C57BL/6J within 120 h post infection (hpi) with IAV (H1N1) PR8...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28361910/her-2-expression-regulated-by-downregulation-of-mir-9-and-which-affects-chemotherapeutic-effect-in-breast-cancer
#6
G Sun, L Sun, Y Liu, H Xing, K Wang
This study aimed to identify microRNAs (miRs), the deregulated expression of which leads to the activation of oncogenic pathways in human breast cancer (BC). miRs are classes of endogenous, small, noncoding RNAs that regulate gene expression aberrantly in human tumor tissues. A total of 39 out of 123 tumoral and matched uninvolved peritumoral breast specimens from 3 independent subsets of patients were analyzed for the expression of 851 human miRs using an Agilent platform. The remaining 84 samples were used to validate miRs differentially expressed between tumoral and matched peritumoral specimens by quantitative polymerase chain reaction...
March 31, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28348559/mir-31-links-lipid-metabolism-and-cell-apoptosis-in-bacteria-challenged-apostichopus-japonicus-via-targeting-ctrp9
#7
Yina Shao, Chenghua Li, Wei Xu, Pengjuan Zhang, Weiwei Zhang, Xuelin Zhao
The biological functions of microRNAs (miRNAs) have been studied in a number of eukaryotic species. Recent studies on vertebrate animals have demonstrated critical roles of miRNA in immune and metabolic activities. However, studies on the functions of miRNA in invertebrates are very limited. Here, we demonstrated that miR-31 from Apostichopus japonicus disrupts the balance of lipid metabolism, thus resulting in cell apoptosis by targeting complement C1q tumor necrosis factor-related protein 9 (AjCTRP9), a novel adipokine with pleiotropic functions in immunity and metabolism...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28342299/plasma-microrna-signature-predicting-weight-gain-among-mexican-american-women
#8
Hua Zhao, Jie Shen, Carrie Daniel-MacDougall, Xifeng Wu, Wong-Ho Chow
OBJECTIVE: There is growing evidence that circulating microRNAs (miRNAs) play an important role in obesity. However, whether they can contribute to adult weight gain is still unclear. METHODS: In the training set with 40 nonsmoking, healthy women identified from the Mano-A-Mano Mexican American Cohort study, global circulating miRNA profiles in plasma samples were assessed. Cox proportional hazard regression was used to assess the effects of plasma miRNAs on significant weight gain during a 5-year follow-up...
March 25, 2017: Obesity
https://www.readbyqxmd.com/read/28322989/role-of-micrornas-in-endocrine-cancer-metastasis
#9
Cilene Rebouças Lima, Cibele Crastequini Gomes, Marinilce Fagundes Santos
The deregulation of transcription and processing of microRNAs (miRNAs), as well as their function, has been involved in the pathogenesis of several human diseases, including cancer. Despite advances in therapeutic approaches, cancer still represents one of the major health problems worldwide. Cancer metastasis is an aggravating factor in tumor progression, related to increased treatment complexity and a worse prognosis. After more than one decade of extensive studies of miRNAs, the fundamental role of these molecules in cancer progression and metastasis is beginning to be elucidated...
March 18, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28320737/mir-31-mutants-reveal-continuous-glial-homeostasis-in-the-adult-drosophila-brain
#10
Lynette Caizhen Foo, Shilin Song, Stephen Michael Cohen
The study of adult neural cell production has concentrated on neurogenesis. The mechanisms controlling adult gliogenesis are still poorly understood. Here, we provide evidence for a homeostatic process that maintains the population of glial cells in the Drosophila adult brain. Flies lacking microRNA miR-31a start adult life with a normal complement of glia, but transiently lose glia due to apoptosis. miR-31a expression identifies a subset of predominantly gliogenic adult neural progenitor cells. Failure to limit expression of the predicted E3 ubiquitin ligase, Rchy1, in these cells results in glial loss...
March 20, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28289479/colorectal-adenoma-and-carcinoma-specific-mirna-profiles-in-biopsy-and-their-expression-in-plasma-specimens
#11
Zsófia Brigitta Nagy, Barnabás Wichmann, Alexandra Kalmár, Orsolya Galamb, Barbara Kinga Barták, Sándor Spisák, Zsolt Tulassay, Béla Molnár
BACKGROUND: MiRNA expression markers are well characterized in colorectal cancer (CRC), but less is known about miRNA expression profiles in colorectal adenomas. Genome-wide miRNA and mRNA expression analyses were conducted through the colorectal adenoma dysplasia sequence. Furthermore, analysis of the expression levels of miRNAs in matched plasma samples was performed, focusing on biomarker candidates; miRNA and mRNA expression analyses were performed on colorectal biopsies and plasma samples (20 normals; 11 tubular and 9 tubulovillous adenomas; 20 colorectal carcinomas) by miRNA 3...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28269758/microrna31-ndrg3-regulation-axes-are-essential-for-hepatocellular-carcinoma-survival-and-drug-resistance
#12
Zhonghai Du, Shuxian Niu, Xiaoyu Xu, Qinghui Xu
BACKGROUNDS: Hepatocellular carcinoma (HCC) is an epithelial cancer that originates from hepatocytes and it is the most common primary malignant tumor of the liver. Till now the prognosis of HCC patients is generally poor. The molecular mechanism giving rise to HCC development and recurrence is still largely unknown. MicroRNA-31 (miR-31) is among the most commonly altered microRNAs in human cancers, and alternations of miR-31 expression were reported to play pivotal roles in tumorigenesis and tumor progression...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28264626/quantitative-changes-in-the-protein-and-mirna-cargo-of-plasma-exosome-like-vesicles-after-exposure-to-ionizing-radiation
#13
Ramesh Yentrapalli, Juliane Merl-Pham, Omid Azimzadeh, Lisa Mutschelknaus, Carsten Peters, Stefanie M Hauck, Michael J Atkinson, Soile Tapio, Simone Moertl
PURPOSE: Multiple cell types secrete exosome-like extracellular vesicles (ELVs) to the extracellular environment. Pathological conditions can produce characteristic changes to the vesicle cargo. We investigated if ionizing radiation is capable of inducing changes in the protein and microRNA (miRNA) cargo of ELVs. MATERIALS AND METHODS: Whole blood samples from healthy donors were irradiated with 2 Gy gamma rays and then peripheral blood mononuclear cells and plasma were separated from residual blood and co-cultivated for 24 h...
March 7, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28253927/low-tissue-levels-of-mir-125b-predict-malignancy-in-solitary-fibrous-tumors-of-the-pleura
#14
Matthias Brock, Selma Hottinger, Matthias Diebold, Alex Soltermann, Wolfram Jochum, Malcolm Kohler, Lars C Huber, Daniel P Franzen
BACKGROUND: Solitary fibrous tumors of the pleura (SFTP) are rare neoplasia of the chest. A subset of SFTP follows a malignant course, sometimes several years after complete resection. Traditional scoring systems based on clinical and histological features are poor predictors of biological behavior. This study aimed to investigate tumor-associated miRNAs expression as novel biomarkers to predict the clinical behavior of SFTP. METHODS: Formalin-fixed and paraffin-embedded SFTP tissues blocks from patients surgically resected between 1992 and 2013 at two tertiary care teaching hospitals were included...
March 2, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28238135/a-gold-polydopamine-core-shell-nanoprobe-for-long-term-intracellular-detection-of-micrornas-in-differentiating-stem-cells
#15
Chun Kit K Choi, Chung Hang J Choi, Liming Bian
MicroRNAs (miRNAs) represent an emerging class of biomarkers for studying and understanding biological events; the development of viable tools for detecting or monitoring the intracellular expression levels of specific miRNAs is of great interest to life scientists and biomedical engineers. Here, we describe the fabrication of a novel class of core-shell nanoprobes that comprise a gold nanoparticle core and a polydopamine (PDA) shell. Our nanoprobes can be used to specifically track the expression profiles of two miRNA markers of osteogenic differentiation (i...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28228108/expression-profiling-and-bioinformatic-analyses-suggest-new-target-genes-and-pathways-for-human-hair-follicle-related-micrornas
#16
Lara M Hochfeld, Thomas Anhalt, Céline S Reinbold, Marisol Herrera-Rivero, Nadine Fricker, Markus M Nöthen, Stefanie Heilmann-Heimbach
BACKGROUND: Human hair follicle (HF) cycling is characterised by the tight orchestration and regulation of signalling cascades. Research shows that micro(mi)RNAs are potent regulators of these pathways. However, knowledge of the expression of miRNAs and their target genes and pathways in the human HF is limited. The objective of this study was to improve understanding of the role of miRNAs and their regulatory interactions in the human HF. METHODS: Expression levels of ten candidate miRNAs with reported functions in hair biology were assessed in HFs from 25 healthy male donors...
February 22, 2017: BMC Dermatology
https://www.readbyqxmd.com/read/28211533/integration-of-microrna-and-mrna-expression-profiles-in-the-skin-of-systemic-sclerosis-patients
#17
Bin Zhou, Xiao Xia Zuo, Yi Sha Li, Si Ming Gao, Xiao Dan Dai, Hong Lin Zhu, Hui Luo
MicroRNAs (miRNAs) play important roles in the fibrosis of systemic sclerosis (SSc). However, the underlying miRNA-mRNA regulatory network is not fully understood. A systemic investigation of the role of miRNAs would be very valuable for increasing our knowledge of the pathogenesis of SSc. Here, we combined miRNA and mRNA expression profiles and bioinformatics analyses and then performed validation experiments. we identified 21 miRNAs and 2698 mRNAs that were differentially expressed in SSc. Among these, 17 miRNAs and their 33 target mRNAs (55 miRNA-mRNA pairs) were involved in Toll-like receptor, transforming growth factor β and Wnt signalling pathways...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197369/the-transcriptome-of-lung-tumor-infiltrating-dendritic-cells-reveals-a-tumor-supporting-phenotype-and-a-microrna-signature-with-negative-impact-on-clinical-outcome
#18
Lotte Pyfferoen, Elisabeth Brabants, Celine Everaert, Nancy De Cabooter, Kelly Heyns, Kim Deswarte, Manon Vanheerswynghels, Sofie De Prijck, Glenn Waegemans, Melissa Dullaers, Hamida Hammad, Olivier De Wever, Pieter Mestdagh, Jo Vandesompele, Bart N Lambrecht, Karim Y Vermaelen
Targeting immunomodulatory pathways has ushered a new era in lung cancer therapy. Further progress requires deeper insights into the biology of immune cells in the lung cancer micro-environment. Dendritic cells (DCs) represent a heterogeneous and highly plastic immune cell system with a central role in controlling immune responses. The intratumoral infiltration and activation status of DCs are emerging as clinically relevant parameters in lung cancer. In this study, we used an orthotopic preclinical model of lung cancer to dissect how the lung tumor micro-environment affects tissue-resident DCs and extract novel biologically and clinically relevant information...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28147317/ezh2-expression-is-a-prognostic-biomarker-in-patients-with-colorectal-cancer-treated-with-anti-egfr-therapeutics
#19
Itaru Yamamoto, Katsuhiko Nosho, Shinichi Kanno, Hisayoshi Igarashi, Hiroyoshi Kurihara, Keisuke Ishigami, Kazuya Ishiguro, Kei Mitsuhashi, Reo Maruyama, Hideyuki Koide, Hiroyuki Okuda, Tadashi Hasegawa, Yasutaka Sukawa, Kenji Okita, Ichiro Takemasa, Hiroyuki Yamamoto, Yasuhisa Shinomura, Hiroshi Nakase
The polycomb group protein enhancer of zeste homolog 2 (EZH2) is a methyltransferase that suppresses microRNA-31 (miR-31) in various human malignancies including colorectal cancer. We recently suggested that miR-31 regulates the signaling pathway downstream of epidermal growth factor receptor (EGFR) in colorectal cancer. Therefore, we conducted this study for assessing the relationship between EZH2 expression and clinical outcomes in patients with colorectal cancer treated with anti-EGFR therapeutics. We immunohistochemically evaluated EZH2 expression and assessed miR-31 and gene mutations [KRAS (codon 61/146), NRAS (codon 12/13/61), and BRAF (codon 600)] in 109 patients with colorectal cancer harboring KRAS (codon 12/13) wild-type...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28122331/integrative-mirna-and-mrna-analysis-in-penile-carcinomas-reveals-markers-and-pathways-with-potential-clinical-impact
#20
Hellen Kuasne, Mateus C Barros-Filho, Ariane Busso-Lopes, Fábio A Marchi, Maisa Pinheiro, Juan J M Muñoz, Cristovam Scapulatempo-Neto, Eliney F Faria, Gustavo C Guimarães, Ademar Lopes, José C S Trindade-Filho, Maria Aparecida C Domingues, Sandra A Drigo, Silvia R Rogatto
Penile carcinoma (PeCa) is an important public health issue in poor and developing countries, and has only recently been explored in terms of genetic and epigenetic studies. Integrative data analysis is a powerful method for the identification of molecular drivers involved in cancer development and progression. miRNA and mRNA expression profiles followed by integrative analysis were investigated in 23 PeCa and 12 non-neoplastic penile tissues (NPT). Expression levels of eight miRNAs and 10 mRNAs were evaluated in the same set of samples used for microarray and in a validation set of cases (PeCa = 36; NPT = 27)...
February 28, 2017: Oncotarget
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