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MicroRNA 10b

Qin Ru, Wei-Ling Li, Qi Xiong, Lin Chen, Xiang Tian, Chao-Ying Li
Accumulating evidence has demonstrated that voltage-gated potassium channels (Kv channels) were associated with regulating cell proliferation and apoptosis in tumor cells. Our previous study proved that Kv channel blocker, 4-aminopyridine (4-AP) could inhibit cell proliferation and induce apoptosis in glioma. However, the precise mechanisms were not clear yet. MicroRNAs (miRNAs) are small non-coding RNAs that act as key mediators in the progression of tumor, so the aim of this study was to investigate the role of miRNAs in the apoptosis-promoting effect of 4-AP in glioma cells...
March 7, 2018: Molecular Biology of the Cell
Tessho Maruyama, Kazuhide Nishihara, Masato Umikawa, Akira Arasaki, Toshiyuki Nakasone, Fumikazu Nimura, Akira Matayoshi, Kimiko Takei, Saori Nakachi, Ken-Ichi Kariya, Naoki Yoshimi
MicroRNAs (miRs) are expected to serve as prognostic tools for cancer. However, many miRs have been reported as prognostic markers of recurrence or metastasis in oral squamous cell carcinoma patients. We aimed to determine the prognostic markers in early-stage tongue squamous cell carcinoma (TSCC). Based on previous studies, we hypothesized that miR-10a, 10b, 196a-5p, 196a-3p, and 196b were prognostic markers and we retrospectively performed miR expression analyses using formalin-fixed paraffin-embedded sections of surgical specimens...
February 2018: Oncology Letters
Marianna Alunni-Fabbroni, Leonie Majunke, Elisabeth K Trapp, Marie Tzschaschel, Sven Mahner, Peter A Fasching, Tanja Fehm, Andreas Schneeweiss, Thomas Beck, Ralf Lorenz, Thomas W P Friedl, Wolfgang Janni, Brigitte Rack
BACKGROUND: microRNAs (miRNAs) are considered promising cancer biomarkers, showing high reliability, sensitivity and stability. Our study aimed to identify associations between whole blood miRNA profiles, presence of circulating tumor cells (CTCs) and clinical outcome in post-operative early breast cancer patients (EBC) to assess the utility of miRNAs as prognostic markers in this setting. METHOD: A total of 48 post-operative patients, recruited in frame of the SUCCESS A trial, were included in this retrospective study and tested with a panel of 8 miRNAs (miR-10b, -19a, - 21, - 22, -20a, - 127, - 155, -200b)...
February 6, 2018: BMC Cancer
Jianhui Zhang, Jing Yang, Xin Zhang, Jia Xu, Yiyi Sun, Purong Zhang
MicroRNAs (miRNAs) are short non-coding RNA molecules that play a significant role in many types of cancers including breast cancer. In the current study, we evaluated the expression levels of microR-10b (miR-10b) in 115 breast cancer patients from Sichuan Cancer Center. Real time reverse transcription-PCR was used to assess miR-10b expression. Clinical data including disease stage, survival status, age, ER/PR/HER2 status, molecular subtypes, tumor size, lymph node status and Ki-67 expression levels were correlated with miR-10b expression levels...
2018: PloS One
Ricardo Cortez Cardoso Penha, Simona Pellecchia, Roberto Pacelli, Luis Felipe Ribeiro Pinto, Alfredo Fusco
BACKGROUND: Ionizing Radiation (IR) is a well-known risk factor for papillary thyroid cancer, and it has been reported to deregulate microRNA expression, which is important to thyroid carcinogenesis. Therefore, we have investigated the impact of IR on microRNA expression profile of the normal thyroid cell line (FRTL-5 CL2) and as well as its effect on radiosensitivity of thyroid cancer cell lines, especially the human anaplastic thyroid carcinoma cell line (8505c). METHODS: The global microRNA expression profile of irradiated FRTL-5 CL2 cells (5 Gy X-ray) was characterized and data were confirmed by qRT-PCR evaluating the expression of rno-miR-10b-5p, rno-miR-33-5p, rno-miR-128-1-5p, rno-miR-199a-3p, rno-miR-296-5p, rno-miR-328a-3p and rno-miR-541-5p in irradiated cells...
February 3, 2018: Thyroid: Official Journal of the American Thyroid Association
M E Haikalis, J M Wessels, N A Leyland, S K Agarwal, W G Foster
MicroRNA (miRNA), non-coding segments of RNA involved in post-transcriptional regulation of protein expression, are differentially expressed in eutopic endometrium of women with and without endometriosis compared to endometriotic lesions. However, endometriotic lesion types are known to be biochemically distinct and therefore hypothesized that miRNAs are differentially expressed in endometriomas compared to peritoneal and deep-infiltrating lesions. Therefore endometrial biopsies and ectopic implants from women (n = 38) undergoing laparoscopic surgery for chronic pelvic pain were collected...
January 29, 2018: Biology of Reproduction
Anbarasu Lourdusamy, Li Z Luo, Lisa Cd Storer, Kenneth J Cohen, Linda Resar, Richard G Grundy
Pediatric spinal ependymomas (SEPN) are important albeit uncommon malignant central nervous system tumors with limited treatment options. Our current knowledge about the underlying biology of these tumors is limited due to their rarity. To begin to elucidate molecular mechanisms that give rise to pediatric SEPN, we compared the transcriptomic landscape of SEPNs to that of intracranial ependymomas using genome-wide mRNA and microRNA (miRNA) expression profiling in primary tumour samples. We found that pediatric SEPNs are characterized by increased expression of genes involved in developmental processes, oxidative phosphorylation, cellular respiration, electron transport chain, and cofactor metabolic process...
December 29, 2017: Oncotarget
Gulibaha Hujie, Sheng-Hua Zhou, Hua Zhang, Jie Qu, Xiao-Wei Xiong, Outikuer Hujie, Cheng-Gong Liao, Shun-E Yang
Background: Our previous work showed that miR-10b was overexpressed in hepatocellular carcinoma (HCC) and promoted HCC cell migration and invasion. Epithelial-mesenchymal transition (EMT) is involved in HCC metastasis. So, we suspected that miR-10b might participate in the HCC EMT. Methods: We performed morphological analysis and immunofluorescence to observe the roles of miR-10b in HCC EMT. The expression of KLF11 and EMT markers were detected by real-time RT-PCR and western blot...
2018: Cancer Cell International
Ida V Lundberg, Maria L Wikberg, Ingrid Ljuslinder, Xingru Li, Robin Myte, Carl Zingmark, Anna Löfgren-Burström, Sofia Edin, Richard Palmqvist
BACKGROUND/AIM: KRAS and BRAF are two genes commonly mutated in colorectal cancer (CRC). Even though BRAF is a downstream target of KRAS in the MAPK signalling pathway, KRAS- and BRAF-mutated CRCs are found to display several different clinical and histopathological features. We investigated whether a differential expression of microRNAs (miRNAs) could explain the clinicopathological differences seen between KRAS- and BRAF-mutated CRCs. MATERIALS AND METHODS: Using a PCR array, we analyzed the expression of 84 different miRNAs in CRC cell lines wild-type in KRAS and BRAF, or mutated in KRAS or BRAF...
February 2018: Anticancer Research
Elżbieta Sokół, Hanna Kędzierska, Alicja Czubaty, Beata Rybicka, Katarzyna Rodzik, Zbigniew Tański, Joanna Bogusławska, Agnieszka Piekiełko-Witkowska
SRSF1, SRSF2 and hnRNP A1 are splicing factors that regulate the expression of oncogenes and tumor suppressors. SRSF1 and SRSF2 contribute to the carcinogenesis in the kidney. Despite their importance, the mechanisms regulating their expression in cancer are not entirely understood. Here, we investigated the microRNA-mediated regulation of SRSF1, SRSF2 and hnRNP A1 in renal cancer. The expression of microRNAs predicted to target SRSF1, SRSF2 and hnRNP A1 was disturbed in renal tumors compared with controls...
January 10, 2018: Experimental Cell Research
Y-C Lai, N Ushio, M M Rahman, Y Katanoda, K Ogihara, Y Naya, A Moriyama, T Iwanaga, Y Saitoh, T Sogawa, T Sunaga, Y Momoi, H Izumi, N Miyoshi, Y Endo, M Fujiki, H Kawaguchi, N Miura
Canine hepatocellular carcinoma (HCC) is the most common primary hepatic tumour in dogs. MicroRNA (miRNA) dysregulation has been reported in human HCC and shown to have diagnostic and prognostic value; however, there are no data on miRNA expression in canine HCC. The aim of the present study was to investigate differentially expressed miRNAs in canine HCC. Analysis of miRNA expression in canine HCC tissues and cell lines by quantitative reverse transcription PCR showed that miR-1, miR-122, let-7a, and let-7g were downregulated, whereas miR-10b and miR-21 were upregulated in canine HCC...
January 3, 2018: Veterinary and Comparative Oncology
Huan Tian, Meili Lv, Zhilong Li, Duo Peng, Yu Tan, Hui Wang, Qingqing Li, Fuping Li, Weibo Liang
Non-protein coding RNA, miRNAs (microRNAs), are a class of promising molecular biomarkers for forensic body fluid identification (BFI) as their small size and tissue-specific expression manners. A number of studies have shown that semen can be distinguished from forensic-related body fluids (such as menstrual blood, venous blood, vaginal fluid, saliva, etc.) using semen-specific miRNAs through microassay screening and RT-qRCR. Infertility is becoming a global health problem, affecting 10%-15% of couples worldwide, and half of the cases are the result of male factors (Lian et al...
December 19, 2017: Forensic Science International. Genetics
Qian Zhao, Jiafang Piao, Weipan Peng, Yang Wang, Bo Zhang, Xiaoqun Gong, Jin Chang
Identifying the microRNA (miRNA) expression level can provide critical information for early diagnosis of cancers or monitoring the cancer therapeutic efficacy. This paper focused on a kind of gold nanoparticles coated polystyrene microbeads (PS@Au microspheres)-based DNA probe as miRNA capture and duplex specific nuclease (DSN) signal amplification platform based on RGB value read-out for miRNAs detection. In virtue of the outstanding selectivity and simple experimental operation, 5'- fluorochrome -labeled molecular beacons (MBs) were immobilized on PS@Au microspheres via their 3'-thiol, in the wake of the fluorescence quenching by nanoparticle surface energy transfer (NSET)...
January 4, 2018: ACS Applied Materials & Interfaces
Xiaoming Wu
The present study aimed to explore the molecular mechanism of myelination in the peripheral nervous system (PNS) based on genome expression profiles. Microarray data (GSE60345) was acquired from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were integrated and subsequently subjected to pathway and term enrichment analysis. A protein‑protein interaction network was constructed and the top 200 DEGs according to their degree value were further subjected to pathway enrichment analysis...
December 22, 2017: International Journal of Molecular Medicine
Kave Shams, Mariola Kurowska-Stolarska, Fabian Schütte, A David Burden, Clive S McKimmie, Gerard J Graham
Chemokines are the principal regulators of leukocyte migration and are essential for initiation and maintenance of inflammation. Atypical chemokine receptor 2 (ACKR2) binds and scavenges proinflammatory CC-chemokines, regulates cutaneous T-cell positioning, and limits the spread of inflammation in vivo. Altered ACKR2 function has been implicated in several inflammatory disorders, including psoriasis, a common and debilitating T cell-driven disorder characterized by thick erythematous skin plaques. ACKR2 expression is abnormal in psoriatic skin, with decreased expression correlating with recruitment of T cells into the epidermis and increased inflammation...
December 26, 2017: Journal of Biological Chemistry
Kuo-Hsuan Chang, Yih-Ru Wu, Chiung-Mei Chen
BACKGROUND: Huntington's disease (HD), caused by expansion of a polyglutamine tract within HUNTINGTIN (HTT) protein, is an autosomal dominant neurodegenerative disease associated with a progressive neurodegeneration of striatum and cerebral cortex. Although a few studies have identified substantial microRNA (miRNA) alterations in central nervous tissues from HD patients, it will be more accessible to employ these molecular changes in peripheral tissues as biomarkers for HD. METHODS: We examined the expression levels of 13 miRNAs (miR-1, mirR-9, miR-9*, miR-10b, miR-29a, miR-29b, miR-124a, miR-132, miR-155, miR-196a, miR-196b, miR-330 and miR-615), 10 of which previously demonstrated alterations and 3 of which are potential regulators of differentially-expressed genes in brains of HD patients, in the peripheral leukocytes of 36 HD patients, 8 pre-symptomatic HD carriers and 28 healthy controls...
December 19, 2017: Orphanet Journal of Rare Diseases
Yanjie Guo, Xiya Ma, Weini Wu, Mingyan Shi, Junlong Ma, Yaping Zhang, Erkang Zhao, Xueyi Yang
Skin epidermal stem cells (SESCs), which share a single origin with corneal epithelial cells (CECs), are considered to be one of the most ideal seed cells for the construction of tissue engineered corneas. However, the mechanism underlying the transdifferentiation of SESCs to CECs has not been fully elucidated. In the present study, to identify critical microRNAs (miRNAs/miRs) and genes that regulate the transdifferentiation of SESCs to CECs, SESCs and CECs were collected from sheep and used for small RNA sequencing and mRNA microarray analyses...
February 2018: International Journal of Molecular Medicine
Yunping Xue, Juan Lv, Pengfei Xu, Lin Gu, Jian Cao, Lingling Xu, Kai Xue, Qian Li
Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disease, which is characterized by hyperandrogenism (HA), chronic anovulation, polycystic ovaries, insulin resistance, and obesity. At present, the mechanism by which PCOS/HA occurs has not been fully elucidated, thus, the mechanisms behind and interventions for HA in PCOS are current hot topics in research. MiRNAs have recently been shown to serve as diagnostic or prognostic biomarkers in patients with cancer. Thus, we are currently focused on studying the altered expression of miRNAs in follicular fluid and their correlation with HA in PCOS...
November 28, 2017: Journal of Cellular Biochemistry
Yu Shi, Peng Ye, Xinghua Long
BACKGROUND/AIMS: As MCF-7 and MDA-MB-231 cells are the typical cell lines of two clinical breast tumour subtypes, the aim of the present study was to elucidate the transcriptome differences between MCF-7 and MDA-MB-231 breast cancer cell lines. METHODS: The mRNA, miRNA (MicroRNA) and lncRNA (Long non-coding RNA) expression profiles were examined using NGS (next generation sequencing) instrument Illumina HiSeq-2500. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses were performed to identify the biological functions of differentially expressed coding RNAs...
2017: Cellular Physiology and Biochemistry
Carrie Mayes, Sarah Seashols-Williams, Sheree Hughes-Stamm
Body fluid identification (BFID) can provide crucial information during the course of an investigation. In recent years, microRNAs (miRNAs) have shown considerable body fluid specificity, are able to be co-extracted with DNA, and their small size (18-25 nucleotides) make them ideal for analyzing highly degraded forensic samples. In this study, we designed a preliminary 8-marker system for BFID including an endogenous reference gene (let-7g) to differentiate between venous blood (miR-451a and miR-142-3p), menstrual blood (miR-141-3p and miR-412-3p), semen (miR-891a and miR-10b), and saliva (miR-205) using a capillary electrophoresis approach...
October 31, 2017: Legal Medicine
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