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Jianqiao Luo, Caidan Zhu, Hongya Wang, Li Yu, Jianwei Zhou
Primary ovarian cancer is the main cause of gynecological cancer-associated mortality. However, the mechanism behind the spread of ovarian cancer requires elucidation. The present study aimed to investigate the effects of microRNA-126 (miR-126) on differentiation and invasion, and its mechanism in primary ovarian cancer. Ovarian cancer SKOV3 cells transfected with LV3-has-miR-126 mimics and LV3-has-miR-126 inhibitor were produced; it was revealedthatLV-miR-126 mimics could induce cell cycle arrest at G1 phase, suppress cell invasion through Matrigel-coated membranes and downregulate the expression of vascular endothelial growth factor (VEGF)...
April 2018: Oncology Letters
Zacharias Kontarakis, Andrea Rossi, Sophie Ramas, Michael T Dellinger, Didier Y R Stainier
Organ homeostasis relies upon cellular and molecular processes that restore tissue structure and function in a timely fashion. Lymphatic vessels help maintain fluid equilibrium by returning interstitial fluid that evades venous uptake back to the circulation. Despite its important role in tissue homeostasis, cancer metastasis, and close developmental origins with the blood vasculature, the number of molecular players known to control lymphatic system development is relatively low. Here we show, using genetic approaches in zebrafish and mice, that the endothelial specific microRNA mir-126, previously implicated in vascular integrity, regulates lymphatic development...
March 14, 2018: Developmental Biology
Yan Sun, Xiao-Li Liu, Dai Zhang, Fang Liu, Yu-Jing Cheng, Yue Ma, Yu-Jie Zhou, Ying-Xin Zhao
BACKGROUND: Intraplaque angiogenesis, the process of generating new blood vessels mediated by endothelial cells, contributes to plaque growth, intraplaque hemorrhage, and thromboembolic events. Platelet-derived exosomes (PLT-EXOs) affect angiogenesis in multiple ways. The ability of miR-126, one of the best-characterized miRNAs that regulates angiogenesis, carried by PLT-EXOs to influence angiogenesis via the regulation of the proliferation and migration of endothelial cells is unknown...
March 13, 2018: Current Vascular Pharmacology
Tiago Pereira-da-Silva, Madalena Coutinho Cruz, Catarina Carrusca, Rui Cruz Ferreira, Patrícia Napoleão, Miguel Mota Carmo
AIMS: Atherosclerosis is associated with altered circulating microRNA profiles. It is yet unclear whether the expression of these potential biomarkers differs according to the location of atherosclerosis. We assessed whether atherosclerosis of different arterial territories, except the coronary, is associated with specific circulating microRNA profiles. METHODS: A systematic search in PubMed, Web of Science, Embase, and Cochrane Library was carried out using a retrieval strategy including MESH and non-MSH terms...
2018: American Journal of Cardiovascular Disease
Karen Tan, Sai Mun Leong, Zizheng Kee, Patrick Vincent Caramat, James Teo, Michael Vito Martin Blanco, Evelyn S C Koay, Wai Kit Cheong, Thomas I-Peng Soh, Wei Peng Yong, Angela Shien-Ling Pang
We evaluated the changes in CTC count and CTC-associated miRNAs during the course of chemotherapy in patients with metastatic colorectal cancer. Blood samples were collected from 9 metastatic colorectal cancer patients prior to chemotherapy and at every other chemotherapy session during the course of treatment. CTCs were isolated and enumerated using a size-exclusion method (CellSievo, Singapore). CTC-associated miRNAs were isolated using a paper-based, partitioning method, and analyzed using reverse transcription quantitative real-time PCR (MiRXES, Singapore)...
March 5, 2018: Cancer Letters
Qiaorong Li, Geng Wang, Hong Wang
The expression of miR-126 and serine-arginine protein kinase 1 (SRPK1) are linked to tumor development; nevertheless, its role in tumor growth and invasion of gastric cancer (GC) and the underlying mechanism has not been clarified. Here, the expression and role of miR-126 and SRPK1 was investigated in GC tissues and cells by in-vitro assay, and then targets of miR-126 were identified by dual-luciferase reporter assay. In this study, miR-126 expression was downregulated, and associated with lymph node metastasis and poor prognosis as well as SRPK1 expression...
February 8, 2018: Oncology Research
J-Q Wang, W-P Gu, Q-Q Deng, Q Huang, A-M Wang, S-X Liu, H-Y Tang, Y Liang, J-H Yan, S Ouyang
OBJECTIVE: The present study was designed to investigate the effect of microRNA-126 (miR-126) on the migration and homing of endothelial progenitor cells (EPCs) within arterial thrombus of cerebral infarction patients. MATERIALS AND METHODS: EPCs from rat bone marrow were isolated, and miR-126 overexpressed EPCs were constructed by lentiviral transfection. Then, the middle cerebral artery occlusion (MCAO) model was established by the method of thread ligation. Successfully established model rats were randomly divided into miR-126 overexpression EPC group, miR-126 wild type EPC group, and normal saline group...
February 2018: European Review for Medical and Pharmacological Sciences
S Di Martino, C Acierno, A Licito
No abstract text is available yet for this article.
February 2018: European Review for Medical and Pharmacological Sciences
Bin Zhang, Le Xuan Truong Nguyen, Ling Li, Dandan Zhao, Bijender Kumar, Herman Wu, Allen Lin, Francesca Pellicano, Lisa Hopcroft, Yu-Lin Su, Mhairi Copland, Tessa L Holyoake, Calvin J Kuo, Ravi Bhatia, David S Snyder, Haris Ali, Anthony S Stein, Casey Brewer, Huafeng Wang, Tinisha McDonald, Piotr Swiderski, Estelle Troadec, Ching-Cheng Chen, Adrienne Dorrance, Vinod Pullarkat, Yate-Ching Yuan, Danilo Perrotti, Nadia Carlesso, Stephen J Forman, Marcin Kortylewski, Ya-Huei Kuo, Guido Marcucci
Leukemia stem cells (LSCs) in individuals with chronic myelogenous leukemia (CML) (hereafter referred to as CML LSCs) are responsible for initiating and maintaining clonal hematopoiesis. These cells persist in the bone marrow (BM) despite effective inhibition of BCR-ABL kinase activity by tyrosine kinase inhibitors (TKIs). Here we show that although the microRNA (miRNA) miR-126 supported the quiescence, self-renewal and engraftment capacity of CML LSCs, miR-126 levels were lower in CML LSCs than in long-term hematopoietic stem cells (LT-HSCs) from healthy individuals...
March 5, 2018: Nature Medicine
Fangkun Zhao, Chastain Anderson, Sara Karnes, Qinbo Zhou, Jing Ma, Zheng-Gen Jin, Partha S Bhattacharjee, Shusheng Wang
MicroRNA miR-126 has been shown to be required for proper angiogenesis in several models. However, its expression, regulation and function in the mouse choroid remain unclear. Our previous data has shown that miR-126 expression is enriched in the endothelial cells (ECs) of the mouse choroid. Here we report that a 5.5 kb Egfl7/miR-126 promoter drives the expression of miR-126 in the choroid ECs during choroidal vascular development. The expression of miR-126 in the ECs is regulated by flow stress likely through Krüppel-like transcriptional factors...
February 28, 2018: Experimental Eye Research
Marco Witkowski, Termeh Tabaraie, Daniel Steffens, Julian Friebel, Andrea Dörner, Carsten Skurk, Mario Witkowski, Bernd Stratmann, Diethelm Tschoepe, Ulf Landmesser, Ursula Rauch
BACKGROUND: Diabetes mellitus is characterized by chronic vascular disorder and presents a main risk factor for cardiovascular mortality. In particular, hyperglycaemia and inflammatory cytokines induce vascular circulating tissue factor (TF) that promotes pro-thrombotic conditions in diabetes. It has recently become evident that alterations of the post-transcriptional regulation of TF via specific microRNA(miR)s, such as miR-126, contribute to the pathogenesis of diabetes and its complications...
February 24, 2018: Cardiovascular Diabetology
Patrizia Ambrogini, Maria Cristina Albertini, Michele Betti, Claudia Galati, Davide Lattanzi, David Savelli, Michael Di Palma, Stefania Saccomanno, Desirée Bartolini, Pierangelo Torquato, Gabriele Ruffolo, Fabiola Olivieri, Francesco Galli, Eleonora Palma, Andrea Minelli, Riccardo Cuppini
Seizure-triggered maladaptive neural plasticity and neuroinflammation occur during the latent period as a key underlying event in epilepsy chronicization. Previously, we showed that α-tocopherol (α-T) reduces hippocampal neuroglial activation and neurodegeneration in the rat model of kainic acid (KA)-induced status epilepticus (SE). These findings allowed us to postulate an antiepileptogenic potential for α-T in hippocampal excitotoxicity, in line with clinical evidence showing that α-T improves seizure control in drug-resistant patients...
February 22, 2018: Molecular Neurobiology
Ya Hu, Xiang Zhang, Ming Cui, Zhe Su, Mengyi Wang, Quan Liao, Yupei Zhao
PURPOSE: Parathyroid carcinoma (PCa) is a rare endocrine malignancy with poor prognosis and is often difficult to accurately diagnose both before and after surgery. Dysregulated microRNA (miRNA) levels have been identified in PCa using a limited number of samples. The aim of the present study was to verify a group of miRNA markers in a new series of samples to explore their potential significance in PCa diagnosis. METHODS: A total of 58 tissue samples, including 17 PCa lesions and 41 sporadic parathyroid adenomas (PAds), were obtained from 56 primary hyperparathyroidism (pHPT) patients...
February 16, 2018: Endocrine
K S Amr, H Abdelmawgoud, Z Y Ali, S Shehata, H M Raslan
BACKGROUND: Macrovascular complications are the main cause of morbidity and mortality among the diabetic patients. MicroRNAs (miRNAs), a family of small non-coding RNAs, play vital roles in the regulation of blood glucose level and the concurrent cardiovascular complications of type 2 diabetes. We hypothesized that plasma miR-126 and miR-210 are linked to coronary artery disease (CAD) in these diabetes patients. METHODS: Fasting blood samples were collected from 20 healthy volunteers and 100 patients with diabetes (54 patients without CAD and 46 patients with CAD)...
February 16, 2018: British Journal of Biomedical Science
Ashley Di Meo, Rola Saleeb, Samantha J Wala, Heba W Khella, Qiang Ding, Haiyan Zhai, Kalra Krishan, Adriana Krizova, Manal Gabril, Andrew Evans, Fadi Brimo, Maria D Pasic, Antonio Finelli, Eleftherios P Diamandis, George M Yousef
Renal cell carcinoma (RCC) constitutes an array of morphologically and genetically distinct tumors the most prevalent of which are clear cell, papillary, and chromophobe RCC. Accurate distinction between the typically benign-behaving renal oncocytoma and RCC subtypes is a frequent challenge for pathologists. This is critical for clinical decision making. Subtypes also have different survival outcomes and responses to therapy. We extracted RNA from ninety formalin-fixed paraffin-embedded (FFPE) tissues (27 clear cell, 29 papillary, 19 chromophobe, 4 unclassified RCC and 11 oncocytomas)...
January 5, 2018: Oncotarget
Fang Zhou, Meiling Wen, Peiqiong Zhou, Yunhui Zhao, Xiaoling Jia, Yubo Fan, Xiaoyan Yuan
Surface modification for rapid endothelialization of vascular biomaterials is known as an important way to prevent thrombosis and intimal hyperplasia. Moreover, therapeutical manipulation of microRNAs (miRNAs) expression via local delivery of miRNA mimics or inhibitors by electrospun ultrafine fibers has demonstrated the promise in tissue regeneration. In this work, a dual-functional electrospun membrane was developed by combining Arg-Glu-Asp-Val (REDV) peptide-modification of the fiber surface to enhance vascular endothelial cell (VEC) adhesion and encapsulation of miRNA-126 (miR-126) complexes in the electrospun fibers to accelerate VEC proliferation...
April 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
Caiyun Shan, Yongsheng Ma
Stroke is the most common cause of mortality worldwide. Post-stroke angiogenesis is of great significance to the treatment of strokes. The aim of the present study was to investigate the mechanism underlying the angiogenesis-promoting effect of microRNA‑126 (miR‑126)‑associated signaling pathways using a stroke model in vivo and a cell migration model in vitro. Bone marrow‑derived endothelial progenitor cells (EPCs) were extracted and identified using a density gradient method. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to examine the expression levels of miR‑126 and C‑X‑C chemokine receptor type 7 (CXCR7)...
January 29, 2018: Molecular Medicine Reports
Jia Liu, Jiamei Liu, Linying Shi, Fan Zhang, Liping Yu, Xinchun Yang, Jun Cai
The present study aimed to explore microRNA-126 (miR-126) as a novel therapeutic target for primary hypertension. The lentiviral vector containing human immunodeficiency virus 1 (HIV‑1), the miR‑126 gene knockdown viral vector (lenti-miR-126-KD), and control lentiviral vector (lenti‑scramble‑miR) were constructed. Spontaneously hypertensive rats were randomly divided into 4 groups, which received a high dose of lenti‑miR‑126‑KD (1x108, n=5), low dose of lenti‑miR‑126‑KD (1x107, n=6), scramble‑miR (5x107, n=6), and PBS (n=6)...
April 2018: International Journal of Molecular Medicine
Pierre Frères, Nassim Bouznad, Laurence Servais, Claire Josse, Stéphane Wenric, Aurélie Poncin, Jérôme Thiry, Marie Moonen, Cécile Oury, Patrizio Lancellotti, Vincent Bours, Guy Jerusalem
BACKGROUND: Over time, the chance of cure after the diagnosis of breast cancer has been increasing, as a consequence of earlier diagnosis, improved diagnostic procedures and more effective treatment options. However, oncologists are concerned by the risk of long term treatment side effects, including congestive heart failure (CHF). METHODS: In this study, we evaluated innovative circulating cardiac biomarkers during and after anthracycline-based neoadjuvant chemotherapy (NAC) in breast cancer patients...
January 29, 2018: BMC Cancer
Mercè Mateu-Jimenez, Víctor Curull, Alberto Rodríguez-Fuster, Rafael Aguiló, Albert Sánchez-Font, Lara Pijuan, Joaquim Gea, Esther Barreiro
Background: Chronic lung diseases such as chronic obstructive pulmonary disease (COPD) and epigenetic events underlie lung cancer (LC) development. The study objective was that lung tumor expression levels of specific microRNAs and their downstream biomarkers may be differentially regulated in patients with and without COPD. Methods: In lung specimens (tumor and non-tumor), microRNAs known to be involved in lung tumorigenesis (miR-21, miR-200b, miR-126, miR-451, miR-210, miR-let7c, miR-30a-30p, miR-155 and miR-let7a, qRT-PCR), DNA methylation, and downstream biomarkers were determined (qRT-PCR and immunoblotting) in 40 patients with LC (prospective study, subdivided into LC-COPD and LC, N = 20/group)...
2018: Clinical Epigenetics
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