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MicroRNAs and early detection

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https://www.readbyqxmd.com/read/28625242/-clinical-significance-of-combined-detection-of-peripheral-mir-182-and-il-17-in-the-early-diagnosis-of-patients-with-eclampsia-complicated-with-cerebral-infarction-in-icu
#1
Lina Zhang, Tiejun Wu, Dawei Wu, Yanjun Liu, Min Bai, Shuangfeng Chen
OBJECTIVE: To observe the effect of peripheral blood microRNA-182 (miR-182) combined with interleukin-17 (IL-17) in the early diagnosis of cerebral infarction (CI) in patients with eclampsia. METHODS: A prospective non-randomized controlled study was conducted. The patients with eclampsia admitted to intensive care unit (ICU) of Liaocheng People's Hospital from January 1st, 2013 to September 30th 2016 were enrolled. Cerebral imaging was conducted in 7 days after admission to make a definite diagnosis of the occurrence of CI, excluding patients with cerebral hemorrhage...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28621611/plasma-microrna-19a-as-a-potential-biomarker-for-esophageal-squamous-cell-carcinoma-diagnosis-and-prognosis
#2
Yongying Bai, Huayue Lin, Zanxi Fang, Qing Luo, Yizhen Fang, Yuanhui Su, Qing Hu, Hongbing Duan, Falin Chen, Zhong-Ying Zhang
AIM: To investigate whether plasma miR-19a can serve as a biomarker for esophageal squamous cell carcinoma (ESCC) diagnosis and prognosis. MATERIALS & METHODS: Plasma samples from 89 ESCC, 45 benign lesion patients and 80 healthy controls were subjected to RT-qPCR analyses for miR-19a. In addition, plasma samples from 30 patients were collected before and after surgery for the same analyses. RESULTS: Plasma miR-19a was significantly increased in ESCC patients compared with healthy controls...
May 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28614255/identification-of-micrornas-as-diagnostic-biomarkers-for-acute-myocardial-infarction-in-asian-populations-a-systematic-review-and-meta-analysis
#3
Qian Wang, Junfen Ma, Zhiyun Jiang, Fan Wu, Jiedan Ping, Liang Ming
BACKGROUND: Acute myocardial infarction (AMI) is one of the leading causes of mortality and morbidity worldwide. Recently, several studies have revealed the diagnostic value of circulating microRNAs (miRNAs) for AMI detection. However, the diagnostic capacity of miRNAs for AMI is still controversial due to the inconsistent results among studies. METHODS: A systematic literature search was conducted to retrieve relevant articles in PubMed and other databases up to February 2017...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28603669/combining-multi-dimensional-data-to-identify-key-genes-and-pathways-in-gastric-cancer
#4
Wu Ren, Wei Li, Daguang Wang, Shuofeng Hu, Jian Suo, Xiaomin Ying
Gastric cancer is an aggressive cancer that is often diagnosed late. Early detection and treatment require a better understanding of the molecular pathology of the disease. The present study combined data on gene expression and regulatory levels (microRNA, methylation, copy number) with the aim of identifying key genes and pathways for gastric cancer. Data used in this study was retrieved from The Cancer Genomic Atlas. Differential analyses between gastric cancer and normal tissues were carried out using Limma...
2017: PeerJ
https://www.readbyqxmd.com/read/28597969/the-role-of-epigenetic-regulation-and-pluripotency-related-micrornas-in-differentiation-of-pancreatic-stem-cells-to-beta-cells
#5
Ediz Coskun, Merve Ercin, Selda Gezginci-Oktayoglu
In this study, we aimed to research class-I HDACs and glucose on differentiation of pancreatic islet derived mesenchymal stem cells (PI-MSCs) to beta cells. Beta cell differentiation determined by flow cytometric analysis and gene expression levels of PDX1, PAX4, PAX6, NKX6.1, NGN3, INS2, and GLUT2. The valproic acid, is an inhibitor of class I HDACs, caused the highest beta cell differentiation in PI-MSCs. However, the cells in this group were at early stages of differentiation. Glucose co-administration to this group carried the differentiation to higher levels, but these newly formed beta cells were not functional...
June 9, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28593908/circulating-cell-free-micrornas-as-clinical-cancer-biomarkers
#6
REVIEW
Virginie Armand-Labit, Anne Pradines
MicroRNAs (miRNAs) are non-coding small RNAs that are master regulators of genic expression and consequently of many cellular processes. But their expression is often deregulated in human tumors leading to cancer development. Recently miRNAs were discovered in body fluids (serum, plasma and others) and their levels have often been reported to be altered in patients. Circulating miRNAs became one of the most promising biomarkers in oncology for early diagnosis, prognosis and therapeutic response prediction. Here we describe the origins and roles of miRNAs, and summarize the most recent studies focusing on their usefulness as cancer biomarkers in lung, breast, colon, prostate, ovary cancers and melanoma...
April 27, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28586056/microrna-497-acts-as-a-tumor-suppressor-in-gastric-cancer-and-is-downregulated-by-dna-methylation
#7
Jichao Liu, Yongshuang Li, Ying Zou, Jiakui Zhang, Jiaxiang An, Jiao Guo, Minghui Ma, Dongqiu Dai
Gastric cancer (GC) is one of the most common malignant tumors in the world and microRNAs (miRNAs) play an important role in GC. In this study, we found miR‑497 played an important role and served as a novel biomarker in GC. Quantitative real-time PCR (qRT-PCR) was used to measure the miR‑497 expression in GC cell lines and 86 paired GC samples and we also analyzed its correlation with GC clinicopathological parameters. A series of cellular function experiments were applied to validate the effects of miR‑497 on GC...
June 6, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28579513/micrornas-and-altered-metabolism-of-clear-cell-renal-cell-carcinoma-potential-role-as-aerobic-glycolysis-biomarkers
#8
REVIEW
Mariana Morais, Francisca Dias, Ana L Teixeira, Rui Medeiros
BACKGROUND: Warburg Effect is a metabolic switch that occurs in most of cancer cells but its advantages are not fully understood. This switch is known to happen in renal cell carcinoma (RCC), which is the most common solid cancer of the adult kidney. RCC carcinogenesis is related to pVHL loss and Hypoxia Inducible Factor (HIF) activation, ultimately leading to the activation of several genes related to glycolysis. MicroRNAs (miRNAs) regulate gene expression at a post-transcriptional level and are also deregulated in several cancers, including RCC...
June 1, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28562750/circulating-microrna-as-a-marker-for-predicting-liver-disease-progression-in-patients-with-chronic-hepatitis-b
#9
Behnaz Riazalhosseini, Rosmawati Mohamed, Yamunah Devi Apalasamy, Immaculate Mbongo Langmia, Zahurin Mohamed
INTRODUCTION: Hepatitis B virus (HBV) constitutes an important risk factor for cirrhosis and hepatocellular carcinoma (HCC). The link between circulating microRNAs and HBV has been previously reported, although not as a marker of liver disease progression in chronic hepatitis B (CHB). The aim of this study was to characterize miRNA expression profiles between CHB with and without cirrhosis or HCC. METHODS: A total of 12 subjects were recruited in this study. We employed an Affymetrix Gene Chip miRNA 3...
March 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28562349/microrna-155-induced-by-foxp3-through-transcriptional-repression-of-brca1-is-associated-with-tumor-initiation-in-human-breast-cancer
#10
Song Gao, Yicun Wang, Meng Wang, Zhi Li, Zhiying Zhao, Raymond X Wang, Rong Wu, Zhengwei Yuan, Ranji Cui, Kai Jiao, Lizhong Wang, Ling Ouyang, Runhua Liu
MicroRNA (miR)-155 is upregulated in breast cancer cells and in sera of patients with breast cancer, but its clinical relevance remains uncertain. The objective of the present effort was to address the transcriptional regulation of miR-155. A bioinformatics analysis of public datasets validated upregulation of miR-155 in tumor cells of patients with breast cancer, particularly those who were at early stages and had triple-negative cancers. The expression profiling and clinical relevance of miR-155 in tumor cells and blood cells were characterized by TaqMan miR assays and, in plasma and exosomes, by nest-quantitative PCR analysis...
May 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28549791/micrornas-in-gynecological-cancers-small-molecules-with-big-implications
#11
Sanjeev K Srivastava, Aamir Ahmad, Haseeb Zubair, Orlandric Miree, Seema Singh, Rodney P Rocconi, Jennifer Scalici, Ajay P Singh
Gynecological cancers (GCs) are often diagnosed at advanced stages, limiting the efficacy of available therapeutic options. Thus, there remains an urgent and unmet need for innovative research for the efficient clinical management of GC patients. Research over past several years has revealed the enormous promise of miRNAs. These small non-coding RNAs can aid in the diagnosis, prognosis and therapy of all major GCs, viz., ovarian cancers, cervical cancers and endometrial cancers. Mechanistic details of the miRNAs-mediated regulation of multiple biological functions are under constant investigation, and a number of miRNAs are now believed to influence growth, proliferation, invasion, metastasis, chemoresistance and the relapse of different GCs...
May 24, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28546713/current-concepts-of-epigenetics-in-testicular-cancer
#12
REVIEW
Alfredo Harb-De la Rosa, Meenakkshy Manoharan, Ahmed Saeed Goolam
Testicular germ cell tumors (GCTs) are characterized into seminomas (SGCTs) and non-seminomatous testicular germ cell tumors (NSGCTs). Serum tumor markers (STMs) play an important role in testicular cancer as they provide useful information for diagnosis, staging, and detection of recurrence. Nonetheless, additional tumor markers for early diagnosis and therapeutic options are required to enhance specificity of serological diagnosis of testes cancers. Epigenetics is defined as inherited changes in gene expression that are not encoded in the DNA structure...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28545181/hepatocellular-carcinoma-a-comprehensive-review-of-biomarkers-clinical-aspects-and-therapy
#13
Nathalia Martines Tunissiolli, Márcia Maria Urbanin Castanhole-Nunes, Patrícia Matos Biselli-Chicote, Érika Cristina Pavarino, Renato Ferreira da Silva, Rita de Cássia Martins Alves da Silva, Eny Maria Goloni-Bertollo
Hepatocellular carcinoma (HCC) is a cause of several deaths related to cancer worldwidely. In early stage, curative treatments such as surgical resection, liver transplant and local ablation can improve the patient ´s survival. However, the disease is detected in advanced stage; moreover some available therapies are restricted to palliative care and local treatment. Early detections of HCC and adequate therapy are crucial to increase survival as well as to improve the patient´s quality of life. Therefore, researchers have been investigating molecular biomarkers with high sensibility and reliability as Golgi 73 protein (GP73), Glypican-3 (GPC3), Osteopontin (OPN), microRNAs and others...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28540642/plasma-and-white-blood-cells-show-different-mirna-expression-profiles-in-parkinson-s-disease
#14
Christine Schwienbacher, Luisa Foco, Anne Picard, Eloina Corradi, Alice Serafin, Jörg Panzer, Stefano Zanigni, Hagen Blankenburg, Maurizio F Facheris, Giulia Giannini, Marika Falla, Pietro Cortelli, Peter P Pramstaller, Andrew A Hicks
Parkinson's disease (PD) diagnosis is based on the assessment of motor symptoms, which manifest when more than 50% of dopaminergic neurons are degenerated. To date, no validated biomarkers are available for the diagnosis of PD. The aims of the present study are to evaluate whether plasma and white blood cells (WBCs) are interchangeable biomarker sources and to identify circulating plasma-based microRNA (miRNA) biomarkers for an early detection of PD. We profiled plasma miRNA levels in 99 L-dopa-treated PD patients from two independent data collections, in ten drug-naïve PD patients, and in unaffected controls matched by sex and age...
June 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28539816/hsa-mir-96-and-hsa-mir-217-expression-down-regulates-with-increasing-dysplasia-in-pancreatic-intraepithelial-neoplasias-and-intraductal-papillary-mucinous-neoplasms
#15
XiaoYan Chang, ChunKai Yu, Ji Li, Shuangni Yu, Jie Chen
AIM: To compare the clinicopathological features of pancreatic intraepithelial neoplasias (PanINs) and intraductal papillary mucinous neoplasms (IPMNs), and to investigate the role of hsa-miR-96 and hsa-miR-217 in these two lesions. Methods: Formalin-fixed paraffin-embedded pancreatic specimens were selected in this study, including 58 cases of pancreatic intraepithelial neoplasias (PanINs), 45 cases of pancreatic ductal adenocarcinomas (PDAs), and 57 cases of intraductal papillary mucinous neoplasms (IPMNs)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28536328/-microrna-in-various-aspects-of-cancer-development
#16
Sho Nambara, Koshi Mimori
MicroRNAs(miRNAs)are small(18-25 nucleotides)noncoding RNA molecules that bind to partially complementary mRNA sequences, resulting in target degradation or translation inhibition. A single miRNA can influence the expression of hundreds of target genes, and miRNAs have been implicated as key molecules in various diseases, including cancer. Many studies have shown that the miRNAs play an important role in cancer cells and tumor microenvironment and may be biomarkers for early detection and therapeutic targets for various cancers...
May 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28534971/mir-483-5p-plays-a-protective-role-in-chronic-obstructive-pulmonary-disease
#17
Zhenyu Shen, Wenxiang Tang, Jiang Guo, Shenghua Sun
Altered microRNA (miRNA or miR) expression has been reported in chronic obstructive pulmonary disease (COPD). The present study aimed to identify the involvement of miRNAs in the pathophysiology of COPD and to explore the effects of various miRNAs with significant alteration on COPD in vitro. We conducted high‑throughput analysis of miRNAs (miRNA microarray) in lung samples from 10 COPD patients and 10 healthy persons with a validation experiment using quantitative (real‑time) polymerase chain reaction (real‑time PCR) panels...
May 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28515146/transcriptome-of-wheat-inflorescence-development-from-spikelet-initiation-to-floral-patterning
#18
Nan Feng, Gaoyuan Song, Jiantao Guan, Kai Chen, Meiling Jia, Dehua Huang, Jiajie Wu, Lichao Zhang, Xiuying Kong, Shuaifeng Geng, Jun Liu, Aili Li, Long Mao
Early reproductive development in cereals is crucial for final grain number per spike, and hence the yield potential of the crop. To date, however, no systematic analyses of gene expression profiles during this important process have been conducted for common wheat (Triticum aestivum). Here, we studied the transcriptome profiles at four stages of early wheat reproductive development, from spikelet initiation to floral organ differentiation. K-means clustering and stage-specific transcript identification detected dynamically expressed homoeologs of important transcription regulators in spikelet and floral meristems that may be involved in spikelet initiation, floret meristem specification, and floral organ patterning, as inferred from their homologs in model plants...
May 17, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28498428/differential-expression-profiles-of-micrornas-as-potential-biomarkers-for-the-early-diagnosis-of-lung-cancer
#19
Yanqiu Zhang, Jing Sui, Xian Shen, Chengyun Li, Wenzhuo Yao, Weiwei Hong, Hui Peng, Yuepu Pu, Lihong Yin, Geyu Liang
Lung cancer is one of the most lethal malignancies worldwide. To reduce the high morbidity and mortality of the disease, sensitive and specific biomarkers for early detection are urgently needed. Tumor-specific microRNAs (miRNAs) seem to be potential biomarkers for the early diagnosis and treatment of cancer. In this study, the microarray of miRNAs and mRNAs on the same samples was performed and the intersection taken with The Cancer Genome Atlas (TCGA) lung cancer miRNA/RNAseq dataset. Then, miRNA-mRNA regulatory network was constructed to identify miRNA candidates associated with lung cancer through integrating gene expression and miRNA-target prediction...
April 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28495587/dose-response-analysis-of-epigenetic-metabolic-and-apical-endpoints-after-short-term-exposure-to-experimental-hepatotoxicants
#20
Isabelle R Miousse, Lynea A Murphy, Haixia Lin, Melissa R Schisler, Jinchun Sun, Marie-Cecile G Chalbot, Radhakrishna Sura, Kamin Johnson, Matthew J LeBaron, Ilias G Kavouras, Laura K Schnackenberg, Richard D Beger, Reza J Rasoulpour, Igor Koturbash
Identification of sensitive and novel biomarkers or endpoints associated with toxicity and carcinogenesis is of a high priority. There is increasing interest in the incorporation of epigenetic and metabolic biomarkers to complement apical data; however, a number of questions, including the tissue specificity, dose-response patterns, early detection of those endpoints, and the added value need to be addressed. In this study, we investigated the dose-response relationship between apical, epigenetic, and metabolomics endpoints following short-term exposure to experimental hepatotoxicants, clofibrate (CF) and phenobarbital (PB)...
May 8, 2017: Food and Chemical Toxicology
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