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MiR-24 ovarian cancer

Luděk Záveský, Eva Jandáková, Vít Weinberger, Luboš Minář, Veronika Hanzíková, Daniela Dušková, Lenka Záveská Drábková, Iveta Svobodová, Aleš Hořínek
Ovarian cancer as the most fatal gynecological malignancy is often manifested by excessive fluid accumulation known as ascites or effusion. Ascites-derived microRNAs (miRNAs) may be closely associated with ovarian cancer progression. However, our knowledge of their roles, altered expression, and clinical outcomes remained limited. In this study, large-scale expression profiling of 754 human miRNAs was performed using real-time quantitative polymerase chain reaction and 384-well TaqMan array human miRNA A and B cards to identify differentially expressed miRNAs between extracellular fraction of the ascitic fluid associated with high-grade serous ovarian carcinomas and control plasma...
January 1, 2018: Reproductive Sciences
Weijiang Zhang, Jing Fei, Shuqian Yu, Jiayu Shen, Xiaoqing Zhu, Annapurna Sadhukhan, Weiguo Lu, Jianwei Zhou
The roles of long non-coding RNAs (lncRNAs), a class of long non-protein-coding RNAs, in the tumorigenesis of ovarian epithelial cells remain unknown. In this study, we discovered that the expression of long intergenic non-coding RNA 1088 (LINC01088) was clearly reduced in benign epithelial ovarian tumor tissues compared to matched normal ovarian tissues. This was shown by global cDNA gene chip scanning and real-time qPCR, and validated in 42 clinical specimens. Furthermore, we found that LINC01088 inhibited the growth of ovarian cancer xenografts in nude mice...
February 13, 2018: Scientific Reports
Giusy Lombardo, Maddalena Gili, Cristina Grange, Claudia Cavallari, Patrizia Dentelli, Gabriele Togliatto, Daniela Taverna, Giovanni Camussi, Maria Felice Brizzi
The proangiogenic cytokine Interleukin-3 (IL-3) is released by inflammatory cells in breast and ovarian cancer tissue microenvironments and also acts as an autocrine factor for human breast and kidney tumor-derived endothelial cells (TECs). We have previously shown that IL-3-treated endothelial cells (ECs) release extracellular vesicles (EVs), which serve as a paracrine mechanism for neighboring ECs, by transferring active molecules. The impact of an anti-IL-3R-alpha blocking antibody on the proangiogenic effect of EVs released from TECs (anti-IL-3R-EVs) has therefore been investigated in this study...
March 2018: Oncogene
Ming Li, Zhimin Qian, Xiaoling Ma, Xiaolong Lin, Yanan You, Yiying Li, Tong Chen, Hua Jiang
Micro RNAs (miRNAs) are small non-coding RNAs which are 19-24 nucleotides in length. MiRNAs play a vital role in the whole process of tumour development, but how they influence the tumourigenecity of epithelial ovarian cancer (EOC)cells is rarely researched. In our study, it was verified that miR-628-5p decreased the stem like cell percentage of EOC cells by inducing their apoptosis. The animal experiments showed that miR-628-5p decreased the tumourigenecity of EOC cells. Besides, we found miR-628-5p targeted at and down-regulated the expression of fibroblast growth factor receptor 2 (FGFR2)...
January 8, 2018: Biochemical and Biophysical Research Communications
Qinghua Ye, Lei Lei, Lingyun Shao, Jing Shi, Jun Jia, Xiaowen Tong
The effects of microRNA‑141 (miR‑141) on epithelial‑mesenchymal transition (EMT), and ovarian cancer cell migration and invasion were investigated. SKOV3 cells were transfected with the miR‑141 mimic (mimic group), inhibitor (inhibitor group) and nonspecific sequences (NC group), and left untransfected group (blank group). The reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was used to detect the expression of miR‑141 in SKOV3 cell lines. Then, mRNA levels and protein expression of EMT markers were determined by RT‑qPCR and western blotting, respectively...
November 2017: Molecular Medicine Reports
Weisha Liu, Shuyuan Wang, Shunheng Zhou, Feng Yang, Wei Jiang, Qingyuan Zhang, Lihong Wang
Cisplatin (CDDP)-based chemotherapy is a standard first-line therapy for ovarian cancer. However, drug resistance remains a major obstacle to its efficacy. Recently, increasing evidence suggested that the aberrant expression of microRNAs (miRNAs) may contribute to drug resistance. Here, we proposed a systems biology analysis strategy to identify the novel miRNAs potentially involved in CDDP resistance in human ovarian cancer cells. Firstly, we identified the candidate miRNAs associated with CDDP resistance using NCI-60 data...
October 24, 2017: Molecular BioSystems
H Liu, S-R Li, Q Si
OBJECTIVE: HGF/c-met signal pathway exerts important roles in tumor pathogenesis. The study of c-met related regulatory mechanism provides the basis for finding anti-tumor molecular drugs. MiRNAs can effectively regulate gene expression and work as gene therapy. The identification of miRNAs for c-met regulation and study of related mechanism are of critical importance. MATERIALS AND METHODS: Bioinformatics approach was used to search for possible miRNAs with regulatory functions on c-met gene...
August 2017: European Review for Medical and Pharmacological Sciences
X Huang, Y Teng, H Yang, J Ma
Propofol is one of the most commonly used intravenous anesthetic agents during cancer resection surgery. A previous study has found that propofol can inhibit invasion and induce apoptosis of ovarian cancer cells. However, the underlying mechanisms are not known. miR-9 has been reported to be little expressed in ovarian cancer cells, which has been related to a poor prognosis in patients with ovarian cancer. Studies have also demonstrated that propofol could induce microRNAs expression and suppress NF-κB activation in some situations...
December 12, 2016: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Dandan Yuan, Xiaomeng Cui, Yang Wang, Yilei Zhao, Huiying Li, Suangjiu Hu, Xiaodan Chu, Yan Li, Qiang Li, Qian Liu, Wenliang Zhu
Substantial evidence has shown that microRNAs (miRNAs) may be causally linked to the occurrence and progression of human diseases. Herein, we conducted an enrichment analysis to identify potential functional miRNA-disease associations (MDAs) in humans by integrating currently known biological data: miRNA-target interactions (MTIs), protein-protein interactions, and gene-disease associations. Two contributing factors to functional miRNA-disease associations were quantitatively considered: the direct effects of miRNA that target disease-related genes, and indirect effects triggered by protein-protein interactions...
2015: PloS One
L Ayaz, F Çayan, Ş Balci, A Görür, S Akbayir, H Yıldırım Yaroğlu, N Doğruer Unal, L Tamer
MicroRNA (miRNA) is an abundant class of small non-coding RNAs that act as gene regulators. Recent studies have suggested that miRNA deregulation is associated with the initiation and progression of human cancer. However, information about ovarian cancer-related miRNA is mostly limited to tissue miRNA. The aim of this study was to find specific profiles of plasma-derived miRNAs of ovarian cancer. In this present study, the expression profiles of 740 miRNAs in plasma from 18 patients and 24 healthy women subjects were evaluated using microfluidic based multiplex qRT-PCR...
October 2014: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Kuo-Chang Wen, Pi-Ling Sung, Ming-Shyen Yen, Chi-Mu Chuang, Wen-Shiung Liou, Peng-Hui Wang
MicroRNAs (miRNAs, miRs) are a cluster of naturally occurring small non-coding RNA molecules of 19-24 nucleotides in length. miRs control gene expression post-transcriptionally by binding to a specific site at the 3'-UTR of target mRNA, which results in mRNA cleavage and translation repression. Nearly 1000 miRs in the human genome have been identified, and it is believed that these miRs contribute to at least 60% of the human transcriptome. Recent research has shown that miRs are emerging as important regulators of cellular differentiation and dedifferentiation...
December 2013: Taiwanese Journal of Obstetrics & Gynecology
Miharu Kobayashi, Carlos Salomon, Jorge Tapia, Sebastian E Illanes, Murray D Mitchell, Gregory E Rice
BACKGROUND: The role of exosomes in the pathogenesis and metastatic spread of cancer remains to be fully elucidated. Recent studies support the hypothesis that the release of exosomes from cells modifies local extracellular conditions to promote cell growth and neovascularisation. In addition, exosomes may modify the phenotype of parent and/or target cell. For example, sequestration of signaling mediators into exosomes may reduce their intracellular bioavailability to the parent cell thereby altering cell phenotype and metastatic potential...
2014: Journal of Translational Medicine
Wei-wei Tang, Gui-ping Wan, Yi-cong Wan, Lin Zhang, Wen-jun Cheng
OBJECTIVE: To investigate the effects of miR-135a on HOXA10 expression, proliferation and apoptosis of SKOV3 cells. METHODS: (1) Through computer-aided algorithms,the predicted target gene of miR-135a (HOXA10)were determined. (2) miR-135a mimics, miR-135a inhibitor and negative control were transfected into SKOV3 cells, respectively.Reverse transcription (RT)-PCR, western blot analysis were used to examine the expression levels of HOXA10 at different times (24, 48 and 72 hours)...
May 2013: Zhonghua Fu Chan Ke za Zhi
Cigir Biray Avci, Ece Harman, Yavuz Dodurga, Sunde Yilmaz Susluer, Cumhur Gunduz
BACKGROUND AND AIMS: Prostate cancer is the most commonly diagnosed cancer in males in many populations. Metformin is the most widely used anti-diabetic drug in the world, and there is increasing evidence of a potential efficacy of this agent as an anti-cancer drug. Metformin inhibits the proliferation of a range of cancer cells including prostate, colon, breast, ovarian, and glioma lines. MicroRNAs (miRNAs) are a class of small, non- coding, single-stranded RNAs that downregulate gene expression...
2013: Asian Pacific Journal of Cancer Prevention: APJCP
M T M van Jaarsveld, J Helleman, A W M Boersma, P F van Kuijk, W F van Ijcken, E Despierre, I Vergote, R H J Mathijssen, E M J J Berns, J Verweij, J Pothof, E A C Wiemer
Epithelial ovarian cancer is the most lethal gynecological malignancy in the Western world. A major impediment for the successful treatment is the development of drug resistance. The molecular processes that contribute to resistance have been extensively studied; however, there is not much known about regulation by microRNAs (miRNAs). We compared miRNA expression profiles of an isogenic cisplatin-sensitive and -resistant ovarian cancer cell line pair (A2780/A2780 DDP) and found 27 miRNAs to be differentially expressed (2-fold)...
September 5, 2013: Oncogene
Ling-Yun Yang, Hong-Jing Wang, Xi-Biao Jia, Xue Wang, Juan Luo, Xiao-Yan Zhang
OBJECTIVE: To determine the expression of miR-130a in cisplatin resistant cell lines of ovarian cancer and its impact on cisplatin resistance. METHODS: Cisplatin resistant ovarian cancer cell lines were established by stepwise selection with gradual increase of cisplatin. MTT assay was applied to indentify the cisplatin resistant cell lines and determine their resistance index. The expression of miR-130a was measured by SYBR green real-time PCR. RESULTS : The resistance index of A2780/CIS1, A2780/CIS2 and SKOV3/CIS was 30...
January 2012: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
Olivier Mir, Romain Coriat, Laure Cabanes, Stanislas Ropert, Bertrand Billemont, Jérôme Alexandre, Jean-Philippe Durand, Jean-Marc Treluyer, Bertrand Knebelmann, François Goldwasser
BACKGROUND: Hypertension is a common toxicity of bevacizumab, but the frequency of assessment of blood pressure and standardized grading remain to be defined. This study aimed to describe the incidence of bevacizumab-induced hypertension and factors associated with its development, then to retrospectively assess its relation with activity. PATIENTS AND METHODS: One hundred nineteen patients with advanced or metastatic non-small cell lung cancer, colorectal cancer, or ovarian cancer receiving bevacizumab (2...
2011: Oncologist
Yufeng Li, Takashi Mine, Constantin G Ioannides
Novel therapeutic approaches to eliminate cancer stem cells (CSCs) are being developed. This development is imperative as CSCs are resistant to drugs; they divide activated by ligands on the epithelium or on neighboring cancer cells. Specific commands for division originate from Notch-1 ligands. Notch-1 cleavage inhibitors can have opposite effects from the ones expected when the levels of Notch ligands are high on neighboring cancer cells. High levels of Jagged-1 are a common feature of ovarian tumors. Some gene pathways enhance, others repress transcription of Notch-1, while Notch-1 itself activates Myc and HIF-1α...
December 2010: Oncology Reports
S F M Häusler, A Keller, P A Chandran, K Ziegler, K Zipp, S Heuer, M Krockenberger, J B Engel, A Hönig, M Scheffler, J Dietl, J Wischhusen
BACKGROUND: Screening is an unsolved problem for ovarian cancer (OvCA). As late detection is equivalent to poor prognosis, we analysed whether OvCA patients show diagnostically meaningful microRNA (miRNA) patterns in blood cells. METHODS: Blood-borne whole miRNome profiles from 24 patients with OvCA and 15 age- and sex-matched healthy controls were biostatistically evaluated. RESULTS: Student's t-test revealed 147 significantly deregulated miRNAs before and 4 after Benjamini-Hochberg adjustment...
August 24, 2010: British Journal of Cancer
M Berenguer, M Prieto, M Bustamante, D Carrasco, R López-Andújar, J Mir, J Berenguer
BACKGROUND: De novo malignancy developing after transplantation constitutes a well-known complication or organ transplantation, mainly described among renal recipients. AIM: To determine the incidence of de novo internal malignancies (excluding therefore skin cancers and recurrent hepatocellular carcinoma) in a cohort of 183 patients undergoing liver transplantation (OLT) between 6/1/1991 and 12/1/1996 with a minimum follow-up of 12 months and under cyclosporine-azathioprine-prednisone...
October 24, 1998: Medicina Clínica
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