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miR-200b

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https://www.readbyqxmd.com/read/29150958/inhibition-of-mir-200b-mir-429-contributes-to-neuropathic-pain-development-through-targeting-zinc-finger-e-box-binding-protein-1
#1
Xue-Tao Yan, Ying Zhao, Xiao-Li Cheng, Xiang-Hu He, Yu Wang, Wen-Zhong Zheng, Hu Chen, Yan-Lin Wang
Many studies have reported that microRNAs participate in neuropathic pain development. Previously, miR-200b and miR-429 are reported to be involved in various diseases. In our current study, we focused on their roles in neuropathic pain and we found that miR-200b and miR-429 were significantly decreased in chronic constriction injury (CCI) rat spinal cords and isolated microglials. miR-200b and miR-429 overexpression were able to relieve neuropathic pain through modulating PWT and PWL in CCI rats. Meanwhile, we observed that both miR-200b and miR-429 upregulation could repress neuroinflammation via inhibiting inflammatory cytokines such as IL-6, IL-1β and TNF-α in CCI rats...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29137351/microrna-200-associated-with-metastatic-breast-cancer-promotes-traits-of-mammary-luminal-progenitor-cells
#2
Lourdes Sánchez-Cid, Mònica Pons, Juan José Lozano, Nuria Rubio, Marta Guerra-Rebollo, Aroa Soriano, Laia Paris-Coderch, Miquel F Segura, Raquel Fueyo, Judit Arguimbau, Erika Zodda, Raquel Bermudo, Immaculada Alonso, Xavier Caparrós, Marta Cascante, Arash Rafii, Yibin Kang, Marian Martínez-Balbás, Stephen J Weiss, Jerónimo Blanco, Montserrat Muñoz, Pedro L Fernández, Timothy M Thomson
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135495/prenatal-microrna-mir-200b-therapy-improves-nitrofen-induced-pulmonary-hypoplasia-associated-with-congenital-diaphragmatic-hernia
#3
Naghmeh Khoshgoo, Ramin Kholdebarin, Patricia Pereira-Terra, Thomas H Mahood, Landon Falk, Chelsea A Day, Barbara M Iwasiow, Fuqin Zhu, Drew Mulhall, Carly Fraser, Jorge Correia-Pinto, Richard Keijzer
OBJECTIVE: We aimed to evaluate the use of miR-200b as a prenatal transplacental therapy in the nitrofen rat model of abnormal lung development and congenital diaphragmatic hernia (CDH). BACKGROUND: Pulmonary hypoplasia (PH) and pulmonary hypertension determine mortality and morbidity in CDH babies. There is no safe medical prenatal treatment available. We previously discovered that higher miR-200b is associated with better survival in CDH babies. Here, we investigate the role of miR-200b in the nitrofen rat model of PH and CDH and evaluate its use as an in vivo prenatal therapy...
November 13, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/29105802/circulating-micrornas-and-treatment-response-in-the-phase-ii-swog-s0925-study-for-patients-with-new-metastatic-hormone-sensitive-prostate-cancer
#4
Heather H Cheng, Melissa Plets, Hongli Li, Celestia S Higano, Catherine M Tangen, Neeraj Agarwal, Nicholas J Vogelzang, Maha Hussain, Ian M Thompson, Muneesh Tewari, Evan Y Yu
BACKGROUND: Previous studies suggest circulating, blood-based microRNAs (miRNAs) may serve as minimally invasive prostate cancer biomarkers, however there is limited data from prospective clinical trials. Here, we explore the role of candidate plasma miRNAs as potential biomarkers in the SWOG 0925 randomized phase II study of androgen deprivation combined with cixutumumab versus androgen deprivation alone in patients with new metastatic hormone-sensitive prostate cancer. METHODS: Correlative biospecimens, including circulating tumor cells (CTCs) and plasma for miRNA analysis, were collected at baseline and after 12 weeks on treatment from 50 patients enrolled on SWOG 0925...
November 6, 2017: Prostate
https://www.readbyqxmd.com/read/29095265/identification-of-differential-expressed-pe-exosomal-mirna-in-lung-adenocarcinoma-tuberculosis-and-other-benign-lesions
#5
Yan Wang, Yan-Mei Xu, Ye-Qing Zou, Jin Lin, Bo Huang, Jing Liu, Jing Li, Jing Zhang, Wei-Ming Yang, Qing-Hua Min, Shu-Qi Li, Qiu-Fang Gao, Fan Sun, Qing-Gen Chen, Lei Zhang, Yu-Huan Jiang, Li-Bin Deng, Xiao-Zhong Wang
Pleural effusion (PE) is a common clinical complication of many pulmonary and systemic diseases, including lung cancer and tuberculosis. Nevertheless, there is no clinical effective biomarker to identify the cause of PE. We attempted to investigate differential expressed exosomal miRNAs in PEs of lung adenocarcinoma (APE), tuberculous (TPE), and other benign lesions (NPE) by using deep sequencing and quantitative polymerase chain reaction (qRT-PCR). As a result, 171 differentiated miRNAs were observed in 3 groups of PEs, and 11 significantly differentiated exosomal miRNAs were validated by qRT-PCR...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29077234/dna-methylation-regulated-micrornas-in-human-cervical-cancer
#6
Vinay Koshy Varghese, Vaibhav Shukla, Shama Prasada Kabekkodu, Deeksha Pandey, Kapaettu Satyamoorthy
Regulation of miRNA gene expression by DNA promoter methylation may represent a key mechanism to drive cervical cancer progression. In order to understand the impact of DNA promoter methylation on miRNAs at various stages of cervical carcinogenesis, we performed DNA methylation microarray on Normal Cervical Epithelium (NCE), Cervical Intraepithelial Neoplasia (CIN I - III) and Squamous Cell Carcinoma (SCC) tissues to identify differentially methylated miRNAs followed by validation by bisulfite sequencing. Further, expression of miRNAs was analyzed by qRT-PCR in clinical tissues and cervical cancer cell lines...
October 27, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29064597/mir-23b-3p-and-mir-125b-5p-downregulate-apo-a-expression-by-targeting-ets1-in-hepg2-cells
#7
Jun-Fa Zeng, Zhao-Lin Zeng, Kai Zhang, Yue Zhao, Ya-Mi Liu, Jiao-Jiao Chen, Hai Tong, Dang-Heng Wei, Zhi-Sheng Jiang, Zuo Wang
High concentrations of plasma lipoprotein(a) [Lp(a)] have been inferred to be an independent risk factor for cardiovascular and cerebrovascular diseases, such as coronary artery diseases, restenosis, and stroke. Apolipoprotein(a) [apo(a)] is one of the most important components of Lp(a) and contributes greatly to the increased concentration of plasma Lp(a). As a critical positive transacting factor of apo(a) gene, Ets1 has been proven as a target gene of several miRNAs, such as miR-193b, miR-125b-5p, miR-200b, miR-1, and miR-499...
October 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29050269/long-non-coding-rna-carlo-5-promotes-tumor-progression-in-hepatocellular-carcinoma-via-suppressing-mir-200b-expression
#8
Chunqing Dou, Liyuan Sun, Xin Jin, Mingming Han, Bao Zhang, Xian Jiang, Jinyong Lv, Tao Li
Long non-coding RNAs (lncRNAs) play key roles in cancer initiation and progression. The aim was to investigate the biological functions and clinical significance of long non-coding RNA CARLo-5 in hepatocellular carcinoma (HCC). QRT-PCR was performed to investigate CARLo-5 expression in HCC tissues and cells. Kaplan-Meier curve and multivariate analysis validated the association between CARLo-5 expression and overall survival (OS) in HCC patients. Cell proliferation and invasion was performed by CCK8 cell proliferation, cell colony formation and transwell invasion assays...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29047185/pluripotent-stem-cell-derived-haematopoietic-progenitors-are-unable-to-downregulate-key-emt-associated-mirnas
#9
Ellie Meader, Tomas Barta, Dario Melguzo-Sanchis, Katarzyna Tilgner, David Montaner, Ashraf A El-Harouni, Lyle Armstrong, Majlinda Lako
Haematopoietic stem cells derived from pluripotent stem cells could be used as an alternative to bone marrow transplants. Deriving these has been a long-term goal for researchers. However, the success of these efforts has been limited, with the cells produced able to engraft in the bone marrow of recipient animals only in very low numbers. There is evidence that defects in the migratory and homing capacity of the cells are due to mis-regulation of miRNA expression, and are responsible for their failure to engraft...
October 19, 2017: Stem Cells
https://www.readbyqxmd.com/read/29042072/mir-200b-downregulates-kruppel-like-factor-2-klf2-during-acute-hypoxia-in-human-endothelial-cells
#10
Rafal Bartoszewski, Marcin Serocki, Anna Janaszak-Jasiecka, Sylwia Bartoszewska, Kinga Kochan-Jamrozy, Arkadiusz Piotrowski, Jarosław Króliczewski, James F Collawn
The role of microRNAs in controlling angiogenesis is recognized as a promising therapeutic target in both cancer and cardiovascular disorders. However, understanding a miRNA's pleiotropic effects on angiogenesis is a limiting factor for these types of therapeutic approaches. Using genome-wide next-generation sequencing, we examined the role of an antiangiogenic miRNA, miR-200b, in primary human endothelial cells. The results indicate that miR-200b has complex effects on hypoxia-induced angiogenesis in human endothelia and importantly, that many of the reported miR-200b effects using miRNA overexpression may not be representative of the physiological role of this miRNA...
December 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/29037594/epigenetic-modification-of-microrna-200b-contributes-to-diabetic-vasculopathy
#11
Kanhaiya Singh, Durba Pal, Mithun Sinha, Subhadip Ghatak, Surya C Gnyawali, Savita Khanna, Sashwati Roy, Chandan K Sen
Hyperglycemia (HG) induces genome-wide cytosine demethylation. Our previous work recognized miR-200b as a critical angiomiR, which must be transiently downregulated to initiate wound angiogenesis. Under HG, miR-200b downregulation is not responsive to injury. Here, we demonstrate that HG may drive vasculopathy by epigenetic modification of a miR promoter. In human microvascular endothelial cells (HMECs), HG also lowered DNA methyltransferases (DNMT-1 and DNMT-3A) and compromised endothelial function as manifested by diminished endothelial nitric oxide (eNOS), lowered LDL uptake, impaired Matrigel tube formation, lower NO production, and compromised VE-cadherin expression...
September 12, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29032608/microrna-profiling-reveals-dysregulated-micrornas-and-their-target-gene-regulatory-networks-in-cemento-ossifying-fibroma
#12
Thaís Dos Santos Fontes Pereira, João Artur Ricieri Brito, André Luiz Sena Guimarães, Carolina Cavaliéri Gomes, Júlio Cesar Tanos de Lacerda, Wagner Henriques de Castro, Roney Santos Coimbra, Marina Gonçalves Diniz, Ricardo Santiago Gomez
BACKGROUND: Cemento-ossifying fibroma (COF) is a benign fibro-osseous neoplasm of uncertain pathogenesis, and its treatment results in morbidity. MicroRNAs (miRNA) are small non-coding RNAs that regulate gene expression and may represent therapeutic targets. The purpose of the study was to generate a comprehensive miRNA profile of COF compared to normal bone. Additionally, the most relevant pathways and target genes of differentially expressed miRNA were investigated by in silico analysis...
October 15, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28972876/mir-200b-regulates-epithelial-mesenchymal-transition-of-chemo-resistant-breast-cancer-cells-by-targeting-fn1
#13
Xing Yang, Qian Hu, Lan-Xin Hu, Xiao-Rong Lin, Jie-Qiong Liu, Xiao Lin, Xiao-Xiao Dinglin, Jia-Yi Zeng, Hai Hu, Man-Li Luo, He-Rui Yao
Chemotherapy is a cornerstone treatment for early and advanced stage breast cancer patients. However, resistance to chemotherapy remains a major obstacle, resulting in disease relapse and progression. Emerging studies demonstrated that miRNAs regulate chemotherapy-induced epithelial-mesenchymal transition (EMT) and drug resistance, but the underlying mechanisms remain unclear. Here we established a doxorubicin-resistant breast cancer cell line MCF-7/Adr, and found these cells exhibited an EMT phenotype featured by a fibroblast-like morphology, increased the capacity of migration and invasion, and underwent the changes of molecular markers of EMT including E-cadherin, N-cadherin, and vimentin...
September 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28960215/evaluation-of-the-plasma-microrna-levels-in-stage-3-premature-retinopathy-with-plus-disease-preliminary-study
#14
T Metin, E Dinç, A Görür, S Erdoğan, S Ertekin, A A Sarı, L Tamer, Y Çelik
PurposeIn the present study, we aimed to investigate the changes in plasma microRNA (miRNA) levels in premature infants diagnosed with premature retinopathy (ROP).Patients and methodsIn order to investigate the relationship of miRNAs with ROP, 13 premature infants admitted to Mersin University, Medical School, Department of Ophthalmology and diagnosed with ROP stage 3 with plus disease between January 2014-January 2015 were included in the study. Control group consisted of 15 premature infants with no ROP. The plasma miRNA levels were evaluated using high-throughput quantitative real-time PCR...
September 29, 2017: Eye
https://www.readbyqxmd.com/read/28935763/long-noncoding-rna-ilf3-as1-promotes-cell-proliferation-migration-and-invasion-via-negatively-regulating-mir-200b-a-429-in-melanoma
#15
Xiangjun Chen, Sha Liu, Xiaochun Zhao, Xiao Ma, Guozhen Gao, Li Yu, Dexiong Yan, Hao Dong, Weijing Sun
Melanoma is the most malignant skin cancer, which account for most of skin-cancer-related deaths. Long noncoding RNA (lncRNA) is a class of noncoding RNAs with crucial roles in many cancers. However, the roles of lncRNAs in melanoma have not been well studied. In the present study, using public available data and clinical tissues samples, we found that lncRNA ILF3-AS1 is up-regulated in melanoma tissues and cell lines, and correlated with poor prognosis of melanoma patients. Functional experiments showed that knockdown of ILF3-AS1 inhibits melanoma cell proliferation, migration, and invasion...
December 22, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28910345/circulating-mrnas-and-mirnas-as-candidate-markers-for-the-diagnosis-and-prognosis-of-prostate-cancer
#16
MULTICENTER STUDY
Marilesia Ferreira de Souza, Hellen Kuasne, Mateus de Camargo Barros-Filho, Heloísa Lizotti Cilião, Fabio Albuquerque Marchi, Paulo Emilio Fuganti, Alexandre Rossi Paschoal, Silvia Regina Rogatto, Ilce Mara de Syllos Cólus
Circulating nucleic acids are found in free form in body fluids and may serve as minimally invasive tools for cancer diagnosis and prognosis. Only a few studies have investigated the potential application of circulating mRNAs and microRNAs (miRNAs) in prostate cancer (PCa). The Cancer Genome Atlas (TCGA) database was used for an in silico analysis to identify circulating mRNA and miRNA as potential markers of PCa. A total of 2,267 genes and 49 miRNAs were differentially expressed between normal and tumor samples...
2017: PloS One
https://www.readbyqxmd.com/read/28903323/the-pancreatic-tumor-microenvironment-drives-changes-in-mirna-expression-that-promote-cytokine-production-and-inhibit-migration-by-the-tumor-associated-stroma
#17
Song Han, David H Gonzalo, Michael Feely, Daniel Delitto, Kevin E Behrns, Mark Beveridge, DongYu Zhang, Ryan Thomas, Jose G Trevino, Thomas D Schmittgen, Steven J Hughes
The pancreatic adenocarcinoma (PDAC) microenvironment is largely comprised of fibrotic tumor associated stroma (TAS) that contributes to the lethal biology of PDAC. microRNA (miRNA) are small non-coding RNAs that regulate gene expression. We hypothesized that interactions between PDAC cells and TAS cells within the microenvironment modulate miRNA expression and thus, tumor biology. We observed that miR-205 and members of the miR-200 family (miR-200a, -200b, -200c, -141 and miR-429) were exclusively expressed in PDAC cells, consistent with an epithelial miRNA signature, while miR-145 and miR-199 family members (miR-199a and -199b) were solely expressed in TAS cells, consistent with a stromal miRNA signature...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28899657/hif-1%C3%AE-ascl2-mir-200b-regulatory-feedback-circuit-modulated-the-epithelial-mesenchymal-transition-emt-in-colorectal-cancer-cells
#18
Yangyang Shang, Haoyuan Chen, Jun Ye, Xiaolong Wei, Shanxi Liu, Rongquan Wang
We have reported that Achaete scute-like 2 (Ascl2) transcriptionally repressed miR-200 family members and affected the epithelial-mesenchymal transition (EMT)-mesenchymal-epithelial transition (MET) plasticity in colorectal cancer (CRC) cells. However, little is known about the regulation of the Ascl2/miR-200 axis. Here, we found that hypoxia inducible factor-1α (HIF-1α) mRNA levels were positively correlated with Ascl2 mRNA levels and inversely correlated with miR-200b in CRC samples. Mechanistically, we showed that Ascl2 was a downstream target of HIF-1α and had a critical role in the EMT phenotype induced by hypoxia or HIF-1α over-expression...
November 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28882646/protective-effect-of-mir-200b-c-by-inhibiting-vasohibin-2-in-human-retinal-microvascular-endothelial-cells
#19
Yuzhi Ding, Zizhong Hu, Jie Luan, Xuehua Lv, Dongqing Yuan, Ping Xie, Songtao Yuan, Qinghuai Liu
AIMS: Proliferative diabetic retinopathy (PDR), characterized by angiogenesis, can cause serve vision loss and even blindness. Recent studies have suggested a pivotal role of vasohibin-2 (VASH2) in the promotion of angiogenesis in tumor tissues. Here we further investigated the role of VASH2 in the proliferation and migration of retinal endothelial cells. MAIN METHODS: The expression of VASH2 in vascular endothelial cells of epiretinal fibrovascular membranes (FVMs) from PDR patients were detected by immunofluorescence...
September 4, 2017: Life Sciences
https://www.readbyqxmd.com/read/28871006/post-transcriptional-regulation-of-mmp16-and-timp2-expression-via-mir-382-mir-410-and-mir-200b-in-endometrial-cancer
#20
Beata Rak, Dawid Mehlich, Filip Garbicz, Zofia Domosud, Wiktor Paskal, Janina M Marczewska, Paweł K Włodarski
BACKGROUND/AIM: The post-transcriptional regulation of matrix metalloproteinases (MMPs) via microRNAs (miRNAs) has been recently described in numerous human malignancies. However, the exact mechanisms of miRNA-mediated MMPs deregulation in endometrial cancer (EC) remain unclear. Herein, we aimed to analyze the expression of MMP2, MMP16 and TIMP2 and identify miRNAs that modulate their expression. MATERIALS AND METHODS: Protein expression was assessed by immunohistochemistry in formalin-fixed paraffin-embedded EC samples...
September 2017: Cancer Genomics & Proteomics
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