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MicroRNAs and early detection

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https://www.readbyqxmd.com/read/28102867/a-systems-approach-for-the-elucidation-of-crucial-genes-and-network-constituents-of-cervical-intraepithelial-neoplasia-1-cin1
#1
Shikha Suman, Ashutosh Mishra, Anurag Kulshrestha
Cervical intra-epithelial neoplasia 1 (CIN1) is a pre-cancerous cervical cancer condition characterized by changes in the squamous cells of the cervix. Early detection may facilitate treatment as CIN1 may increase the risk of developing cervical cancer. An extensive system level analysis has been carried out to detect crucial network components of CIN1. Differential expression analysis was performed to identify genes that are differentially expressed in CIN1 in comparison to normal cells. Gene Ontology (GO) and pathway enrichment analyses of DEGs were followed by the construction of a protein-protein interaction (PPI) network...
January 19, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28100783/dual-functional-roles-of-molecular-beacon-a-microrna-detector-and-inhibitor
#2
Wai Ming Li, Ching-Man Chan, Andrew L Miller, Chow H Lee
MicroRNAs are essential in many cellular processes. The ability to detect microRNAs is important for understanding its function and biogenesis. This study is aimed at using a molecular beacon to detect miR-430 in developing zebrafish embryos as a proof of principle. miR-430 is crucial for the clearance of maternal mRNA during maternal zygotic transition (MZT) in embryonic development. Despite its known function, the temporal and spatial expression of miR-430 remains unclear. We used various imaging techniques, including laser scanning confocal microscopy, spinning disk and lightsheet microscopy, to study the localization of miR-430 and any developmental defects possibly caused by the molecular beacon...
January 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28098901/effect-of-evodiamine-and-berberine-on-the-interaction-between-dnmts-and-target-micrornas-during-malignant-transformation-of-the-colon-by-tgf-%C3%AE-1
#3
Chao Huang, Hong Liu, Xiu-Li Gong, Li-Yun Wu, Bin Wen
The tissue microenvironment functions as a crucial player in carcinogenesis, and transforming growth factor-β1 (TGF-β1) within the microenvironment stimulates the formation of neoplasms. Using an in vitro model of malignancy induced by TGF-β1, we assessed the effect of evodiamine and berberine on the interaction between DNA methyltransferases (DNMTs) and target microRNAs (miRNAs) in the model. Colon tissues from neonatal rats 7 days of age were cultured and malignancy was induced by TGF-β1 in vitro for 48 h, and then the tissues were respectively treated with evodiamine and berberine for 24 h...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28088915/evaluation-of-microrna-stability-in-plasma-and-serum-from-healthy-dogs
#4
Lars Enelund, Lise Nikolic Nielsen, Susanna Cirera
BACKGROUND: Early and specific detection of cancer is of great importance for successful treatment of the disease. New biomarkers, like microRNAs, could improve treatment efficiency and survival ratio. In human medicine, deregulation of microRNA profiles in circulation has shown great potential as a new type of biomarker for cancer diagnostics. There are, however, few studies of circulating microRNAs in dogs. Extracellular circulating microRNAs have shown a high level of stability in human blood and other body fluids...
January 13, 2017: MicroRNA
https://www.readbyqxmd.com/read/28081549/microrna-promoter-methylation-a-new-tool-for-accurate-detection-of-urothelial-carcinoma
#5
Nuno André Padrão, Sara Monteiro-Reis, Jorge Torres-Ferreira, Luís Antunes, Luís Leça, Diana Montezuma, João Ramalho-Carvalho, Paula C Dias, Paula Monteiro, Jorge Oliveira, Rui Henrique, Carmen Jerónimo
BACKGROUND: Urothelial carcinoma (UC) is the most common cancer affecting the urinary system, worldwide. Lack of accurate early detection tools entails delayed diagnosis, precluding more efficient and timely treatment. In a previous study, we found that miR-129-2 and miR-663a were differentially methylated in UC compared with other genitourinary tract malignancies. Here, we evaluated the diagnostic performance of those microRNAs in urine. METHODS: Promoter methylation levels of miR-129-2 and miR-663a were assessed, using real-time quantitative methylation-specific PCR, in UC tissue samples (using normal urothelium as control) and, subsequently, in urine samples from UC and other genitourinary malignancies...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28079796/serum-microrna-panel-for-early-diagnosis-of-the-onset-of-hepatocellular-carcinoma
#6
Ying Zhang, Tao Li, Yumin Qiu, Tao Zhang, Pengbo Guo, Xiaomin Ma, Qing Wei, Lihui Han
Unique change of circulating microRNAs (miRNAs) was recognized to occur in early oncogenesis, which conferred it the potential as biomarkers for early detection of cancer. However, its diagnostic capability for hepatocellular carcinoma (HCC) has not been fully understood. In this study, microarray analysis was applied to screen the initial candidate miRNA from both the supernatants of anoikis-resistant cellular models and the sera samples of HCC patients. The selected differentially expressed miRNAs were further verified in 115 HCC patients and 40 health controls by qRT-PCR...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28076311/biomarkers-of-acute-kidney-injury-the-pathway-from-discovery-to-clinical-adoption
#7
Kianoush Kashani, Wisit Cheungpasitporn, Claudio Ronco
Acute kidney injury (AKI) is a common complication of critical illnesses and has a significant impact on outcomes, including mortality and morbidities. Unfortunately, apart from prophylactic measures, no effective treatment for this syndrome is known. Therefore, early recognition of AKI not only can provide better opportunities for preventive interventions, but also opens many gates for research and development of effective therapeutic options. Over the last few years, several new AKI biomarkers have been discovered and validated to improve early detection, differential diagnosis, and differentiation of patients into risk groups for progressive renal failure, need for renal replacement therapy (RRT), or death...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28073028/multiplexed-detection-of-lung-cancer-biomarkers-in-patients-serum-with-cmos-compatible-silicon-nanowire-arrays
#8
Anran Gao, Xun Yang, Jing Tong, Lin Zhou, Yuelin Wang, Jianlong Zhao, Hongju Mao, Tie Li
In this work, a real-time assay for highly sensitive, label-free, multiplexed electrical detection of lung cancer biomarkers was developed by using silicon nanowire field-effect (SiNW-FET) devices. Highly responsive SiNW arrays were fabricated using a CMOS-compatible anisotropic self-stop etching technique with mass reproducibility and low cost character. The SiNW nanosensor was integrated with PDMS microfluidic device, which allows rapid analyte delivery, makes the analysis to be conducted using exceedingly small samples and enables potential multiplexed detection...
January 3, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28070693/micrornas-expression-as-novel-genetic-biomarker-for-early-prediction-and-continuous-monitoring-in-pulmonary-cancer
#9
REVIEW
Razvan Nitu, Alexandru Florin Rogobete, Fuat Gundogdu, Sonia Tanasescu, Ovidiu Boruga, Adriana Sas, Sonia Elena Popovici, Delia Hutanu, Ciprian Pilut, Cristian Andrei Sarau, Adrian Constantin Candea, Adrian Tudor Stan, Liviu Marius Moise
One of the main causes of death in the world is lung cancer. According to the World Health Organization, the annual incidence of lung cancer increases significantly. Moreover, lung cancer accounts for one of the highest mortality rates, mainly due to late detection. Numerous studies have been conducted in order to identify new biomarkers for early diagnosis and for monitoring and evaluation of lung cancer stages. An ideal biomarker candidate is represented by the analysis of microRNAs expression. In this paper, we want to summarize microRNAs expressions in lung cancer...
January 9, 2017: Biochemical Genetics
https://www.readbyqxmd.com/read/28061475/potential-roles-of-micrornas-and-ros-in-colorectal-cancer-diagnostic-biomarkers-and-therapeutic-targets
#10
Jingmei Lin, Chia-Chen Chuang, Li Zuo
As one of the most commonly diagnosed cancers worldwide, colorectal adenocarcinoma often occurs sporadically in individuals aged 50 or above and there is an increase among younger patients under 50. Routine screenings are recommended for this age group to improve early detection. The multifactorial etiology of colorectal cancer consists of both genetic and epigenetic factors. Recently, studies have shown that the development and progression of colorectal cancer can be attributed to aberrant expression of microRNA...
January 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28061012/serum-microrna-profiles-as-diagnostic-biomarkers-for-hbv-positive-hepatocellular-carcinoma
#11
Hao-Tu Zhu, Rong-Bin Liu, Ya-Yong Liang, Abdulbaqi M E Hasan, Hai-Yun Wang, Qiong Shao, Zi-Chen Zhang, Jing Wang, Cai-Yun He, Fang Wang, Jian-Yong Shao
BACKGROUND & AIMS: The discovery of effective and reliable biomarkers to detect hepatitis B virus (HBV)-positive hepatocellular carcinoma (HCC) at an early stage may improve the survival of HCC. The aim of this study was to establish serum microRNA (miRNA) profiles as diagnostic biomarkers for HBV-positive HCC. METHODS: We used deep sequencing to screen serum miRNAs in a discovery cohort (n=100). Quantitative polymerase chain reaction (qPCR) assays were then applied to evaluate the expression of selected miRNAs...
January 6, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28060535/circulating-micrornas-promising-biomarkers-involved-in-several-cancers-and-other-diseases
#12
Yicheng Zhao, Yuanyuan Song, Li Yao, Guangqi Song, Chunbo Teng
Recently, many studies indicated that microRNAs (miRNAs) stably existed in various body fluids, including serum, plasma, saliva, and urine. Such miRNAs that exist in mammalian body fluids are known as circulating miRNAs, and they can transmit signals between cells and regulate intracellular gene expression. Currently, we barely understand the characteristics, sources, secretion, uptake, and functions of newly generated miRNAs. Particularly, it has been shown that certain types of circulating miRNAs can provide effective clinical data, suggesting their roles as novel biomarkers for the early detection of diseases such as cancers, cardiovascular diseases, and diabetes...
January 6, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28056546/urinary-microrna-30c-5p-and-microrna-192-5p-as-potential-biomarkers-of-ischemia-reperfusion-induced-kidney-injury
#13
Yan-Fang Zou, Dan Wen, Qian Zhao, Ping-Yan Shen, Hao Shi, Qiang Zhao, Yong-Xi Chen, Wen Zhang
Early detection of acute kidney injury is difficult due to lack of known biomarkers; previous studies have tried to identify new biomarkers for detecting acute kidney injury at an early stage. MicroRNA, a 21-23 nucleotide noncoding RNA molecule, has emerged as a desirable marker in the diagnosis and prognosis of various diseases. This study aims to identify the expression profile of microRNA in ischemia-reperfusion-induced kidney injury and determine the possibility of using the candidate microRNA as biomarker for the detection of I/R-induced kidney injury...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28054319/exosomal-micrornas-in-liquid-biopsies-future-biomarkers-for-prostate-cancer
#14
REVIEW
A Valentino, P Reclusa, R Sirera, M Giallombardo, C Camps, P Pauwels, S Crispi, C Rolfo
Prostate cancer is the second most diagnosed cancer in males in the world. Plasma quantification of prostate-specific antigen substantially improved the early detection of prostate cancer, but still lacks the required specificity. Clinical management of prostate cancer needs advances in the development of new non-invasive biomarkers, ameliorating current diagnosis and prognosis and guiding therapeutic decisions. microRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the post-transcriptional level...
January 4, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28050953/mir-142-3p-as-a-biomarker-of-blastocyst-implantation-failure-a-pilot-study
#15
Edson Borges, Amanda Souza Setti, Daniela P A F Braga, Murilo V Geraldo, Rita de Cássia S Figueira, Assumpto Iaconelli
OBJECTIVE: This study aims to find whether microRNAs (miRNAs) detected in the culture medium of embryos produced in vitro could be potential biomarkers of embryo implantation. METHODS: Culture media samples from 36 embryos, derived from patients undergoing intracytoplasmic sperm injection (ICSI) in a private university-affiliated IVF center, were collected between January/2015 and November/2015. Samples were collected on day three and embryo transfers were performed on day five and all embryos reached the blastocyst stage...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28028586/role-of-mirna-and-its-potential-as-a-novel-diagnostic-biomarker-in-drug-induced-liver-injury
#16
REVIEW
Sukumaran Sanjay, Chandrashekaran Girish
PURPOSE: MicroRNAs (miRNA or miR) are the most abundant and stable class of small RNA. Unlike the typical RNA molecules present in the cell, they do not encode proteins but can control translation. and Hhence, they are found to play a major role in the regulation of cellular processes. miRNAs have been shown to differentially regulate various genes, and the expression levels of some miRNAs changes several fold in liver and serum, during drug- induced toxicity. This review summarises some of the latest findings about the biological functions of miRNA and its potential use as diagnostic biomarkers in drug- induced liver injury...
December 27, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28012229/mir-3941-a-novel-microrna-that-controls-igbp1-expression-and-is-associated-with-malignant-progression-of-lung-adenocarcinoma
#17
Taiki Sato, Aya Shiba-Ishii, Yunjung Kim, Tomoko Dai, Ryan Edbert Husni, JeongMin Hong, Junko Kano, Shingo Sakashita, Tatsuo Iijima, Masayuki Noguchi
Immunoglobulin (CD79a) binding protein 1 (IGBP1) is universally overexpressed in lung adenocarcinoma and exerts an anti-apoptotic effect by binding to PP2Ac. However, the molecular mechanism of IGBP1 overexpression is still unclear. In the present study, we used a microRNA (miRNA) array and TargetScan Human software to detect IGBP1-related miRNAs that regulate IGBP1 expression. The miRNA array analysis revealed more than 100 miRNAs that are dysregulated in early invasive adenocarcinoma. On the other hand, in silico analysis using TargetScan Human revealed 79 miRNAs that are associated with IGBP1 protein expression...
December 23, 2016: Cancer Science
https://www.readbyqxmd.com/read/28005952/microrna-and-transcription-factor-gene-regulatory-network-analysis-reveals-key-regulatory-elements-associated-with-prostate-cancer-progression
#18
Mehdi Sadeghi, Bijan Ranjbar, Mohamad Reza Ganjalikhany, Faiz M Khan, Ulf Schmitz, Olaf Wolkenhauer, Shailendra K Gupta
Technological and methodological advances in multi-omics data generation and integration approaches help elucidate genetic features of complex biological traits and diseases such as prostate cancer. Due to its heterogeneity, the identification of key functional components involved in the regulation and progression of prostate cancer is a methodological challenge. In this study, we identified key regulatory interactions responsible for primary to metastasis transitions in prostate cancer using network inference approaches by integrating patient derived transcriptomic and miRomics data into gene/miRNA/transcription factor regulatory networks...
2016: PloS One
https://www.readbyqxmd.com/read/28002496/exosomal-mirs-in-lung-cancer-a-mathematical-model
#19
Xiulan Lai, Avner Friedman
Lung cancer, primarily non-small-cell lung cancer (NSCLC), is the leading cause of cancer deaths in the United States and worldwide. While early detection significantly improves five-year survival, there are no reliable diagnostic tools for early detection. Several exosomal microRNAs (miRs) are overexpressed in NSCLC, and have been suggested as potential biomarkers for early detection. The present paper develops a mathematical model for early stage of NSCLC with emphasis on the role of the three highest overexpressed miRs, namely miR-21, miR-205 and miR-155...
2016: PloS One
https://www.readbyqxmd.com/read/28000880/microrna-302a-targets-gab2-to-suppress-cell-proliferation-migration-and-invasion-of-glioma
#20
Jiuhong Ma, Jia Yu, Jingmei Liu, Xing Yang, Miao Lou, Jinghui Liu, Fuqiang Feng, Peigang Ji, Liang Wang
Glioma is the most frequent and aggressive primary tumor of the brain in humans. Over the last few decades, significant progress has been made in early detection and multi-mode treatments, but the prognosis of gliomas is still extremely poor. MicroRNAs are endogenously expressed non-coding, single strand and short RNA molecules. Increasing number of studies demonstrated that microRNAs are dysregulated in a variety of human cancers, and play significant roles in tumorigenesis and tumor development, including glioma...
February 2017: Oncology Reports
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