Read by QxMD icon Read


Jingjiang Pi, Ting Tao, Tao Zhuang, Huimin Sun, Xiaoli Chen, Jie Liu, Yu Cheng, Zuoren Yu, Helen H Zhu, Wei-Qiang Gao, Yuanzhen Suo, Xunbin Wei, Paul Chan, Xiangjian Zheng, Ying Tian, Edward Morrisey, Lin Zhang, Yuzhen Zhang
RATIONALE: Angiogenic hypersprouting and leaky vessels are essential for tumor growth. MicroRNAs have unique therapeutic advantages by targeting multiple pathways of tumor-associated angiogenesis, but the function of individual miRNAs of miR302-367cluster in angiogenesis and tumors has not yet been fully evaluated. OBJECTIVE: To investigate the functions of miR302-367 in developmental angiogenesis and tumor angiogenesis and explore the molecular mechanisms of microRNA for the treatment of pathological neovascularization-related diseases...
October 18, 2016: Circulation Research
Qiang Li, Yujie Chen, Xuan Zhang, Shilun Zuo, Hongfei Ge, Yanyan Chen, Xin Liu, John H Zhang, Huaizhen Ruan, Hua Feng
Angiographic vasospasm, especially in the early phases (<72h) of subarachnoid hemorrhage (SAH), is one of the major complications after an aneurysm rupture and is often the cause of delayed neurological deterioration. Scutellarin (SCU), a flavonoid extracted from the traditional Chinese herb Erigeron breviscapus, has been widely accepted as an antioxidant, but the effect of SCU on vasospasm after SAH remains elusive. Endovascular perforation was conducted to induce SAH in Sprague-Dawley rats. Then, the underlying mechanism of the anti-vasospasm effect of SCU was investigated using a modified Garcia scale, India ink angiography, cross-sectional area analysis, immunohistochemistry staining and western blot...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Diego F Gualtero, Sergio M Viafara-Garcia, Sandra J Morantes, Diana M Buitrago, Octavio A Gonzalez, Gloria I Lafaurie
BACKGROUND: Rosuvastatin exhibits anti-inflammatory effects and reduces periodontal diseases and atherosclerosis; however, its role in regulating periodontopathogen-induced endothelial pro-inflammatory responses remains unclear. The purpose of this study was to determine whether rosuvastatin can reduce the pro-inflammatory response induced by A. actinomycetemcomitans in human coronary artery endothelial cells (HCAECs). METHODS: HCAECs were stimulated with purified A...
October 14, 2016: Journal of Periodontology
Alexander Puck, Stefan Hopf, Madhura Modak, Otto Majdic, Petra Cejka, Stephan Blüml, Klaus Schmetterer, Catharina Arnold-Schrauf, Jens G Gerwien, Klaus S Frederiksen, Elisabeth Thell, Judith Leitner, Peter Steinberger, Regina Aigner, Maria Seyerl-Jiresch, Gerhard J Zlabinger, Johannes Stöckl
The cytoplasmic tail of CD45 (ct-CD45) is proteolytically cleaved and released upon activation of human phagocytes. It acts on T cells as an inhibitory, cytokine-like factor in vitro. Here we show, that ct-CD45 is abundant in human peripheral blood plasma from healthy adults compared with plasma derived from umbilical cord blood and plasma from patients with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). Plasma depleted of ct-CD45 enhanced T-cell proliferation, while addition of exogenous ct-CD45 protein inhibited proliferation and reduced cytokine production of human T lymphocytes in response to TCR signaling...
October 8, 2016: European Journal of Immunology
Yifan Lian, Juan Wang, Jing Feng, Jie Ding, Zhonghua Ma, Juan Li, Peng Peng, Wei De, Keming Wang
Long non-coding RNA (lncRNA) modulates gene expression, while lncRNA dysregulation is associated with human cancer. Furthermore, while recent studies have shown that lncRNA IRAIN plays an important role in other malignancies, the role of IRAIN in pancreatic cancer (PC) progression remains unclear. In this study, we found that upregulation of lncRNA IRAIN was significantly correlated with tumor size, TNM stage, and lymph node metastasis in a cohort of 37 PC patients. In vitro experiments showed that knockdown of IRAIN by small interfering RNA (siRNA) significantly induced cell apoptosis and inhibited cell proliferation in both BxPC-3 and PANC-1 cells...
September 19, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Yunseon Choi, Sang Taek Oh, Min-Ah Won, Kyung Mi Choi, Min Ji Ko, Daekwan Seo, Tae-Won Jeon, In Hye Baik, Sang-Kyu Ye, Keon Uk Park, In-Chul Park, Byeong-Churl Jang, Jun-Young Seo, Yun-Han Lee
Ornithine decarboxylase 1 (ODC1), a metabolic enzyme critically involved in the polyamine biosynthesis, is commonly upregulated in hepatocellular carcinoma (HCC). Despite its altered expression in human HCC tissues, the molecular mechanism by which ODC1 alters the course of HCC progression and functions in HCC cell survival is unknown. Here we identified that silencing of ODC1 expression with small interfering (si) RNA causes inhibition of HCC cell growth through blockade of cell cycle progression and induction of apoptosis...
September 30, 2016: Biochemical and Biophysical Research Communications
Brunangelo Falini, Maria Paola Martelli, Enrico Tiacci
Hairy cell leukemia (HCL) is a distinct clinicopathological entity whose underlying genetic lesion has remained a mystery for over half a century. The BRAF V600E mutation is now recognized as the causal genetic event of HCL because it is somatic, present in the entire tumor clone, detectable in almost all cases at diagnosis (encompassing the whole disease spectrum), and stable at relapse. BRAF V600E leads to the constitutive activation of the RAF-MEK-extracellular signal-regulated kinase (ERK) signaling pathway which represents the key event in the molecular pathogenesis of HCL...
October 13, 2016: Blood
Sergi Guixé-Muntet, Fernanda Cristina de Mesquita, Sergi Vila, Virginia Hernández-Gea, Carmen Peralta, Juan Carlos García-Pagán, Jaime Bosch, Jordi Gracia-Sancho
BACKGROUND & AIMS: The transcription factor Krüppel-like factor 2 (KLF2), inducible by simvastatin, confers endothelial vasoprotection. Considering recent data suggesting activation of autophagy by statins, we aimed to: 1) characterize the relationship between autophagy and KLF2 in the endothelium, 2) assess this relationship in acute liver injury (cold ischemia/reperfusion) and 3) study the effects of modulating KLF2-autophagy in vitro and in vivo. METHODS: Autophagic flux, the vasoprotective KLF2 pathway, cell viability and microvascular function were assessed in endothelial cells and in various pre-clinical models of acute liver injury (cold storage and warm reperfusion)...
August 18, 2016: Journal of Hepatology
Heng Giap Woon, Asolina Braun, Jane Li, Corey Smith, Jarem Edwards, Frederic Sierro, Carl G Feng, Rajiv Khanna, Michael Elliot, Andrew Bell, Andrew D Hislop, Stuart G Tangye, Alan B Rickinson, Thomas Gebhardt, Warwick J Britton, Umaimainthan Palendira
Disruption of T cell memory during severe immune suppression results in reactivation of chronic viral infections, such as Epstein Barr virus (EBV) and Cytomegalovirus (CMV). How different subsets of memory T cells contribute to the protective immunity against these viruses remains poorly defined. In this study we examined the compartmentalization of virus-specific, tissue resident memory CD8+ T cells in human lymphoid organs. This revealed two distinct populations of memory CD8+ T cells, that were CD69+CD103+ and CD69+CD103-, and were retained within the spleen and tonsils in the absence of recent T cell stimulation...
August 2016: PLoS Pathogens
Jing Fang, Cheng-Cao Sun, Cheng Gong
Recently, long noncoding RNAs (lncRNAs) have been identified as critical regulators in numerous types of cancers, including non-small cell lung cancer (NSCLC). X inactivate-specific transcript (XIST) has been found to be up-regulated and acts as an oncogene in gastric cancer and hepatocellular carcinoma, but little is known about its expression pattern, biological function and underlying mechanism in NSCLC. Here, we identified XIST as an oncogenic lncRNA by driving tumorigenesis in NSCLC. We found that XIST is over-expressed in NSCLC, and its increased level is associated with shorter survival and poorer prognosis...
September 16, 2016: Biochemical and Biophysical Research Communications
Suresh Ambati, Ping Yu, Elizabeth C McKinney, Muthugapatti K Kandasamy, Diane Hartzell, Clifton A Baile, Richard B Meagher
BACKGROUND: Obesity-related comorbidities are thought to result from the reprogramming of the epigenome in numerous tissues and cell types, and in particular, mature adipocytes within visceral and subcutaneous adipose tissue, VAT and SAT. The cell-type specific chromatin remodeling of mature adipocytes within VAT and SAT is poorly understood, in part, because of the difficulties of isolating and manipulating large fragile mature adipocyte cells from adipose tissues. METHODS: We constructed MA-INTACT (Mature Adipocyte-Isolation of Nuclei TAgged in specific Cell Types) mice using the adiponectin (ADIPOQ) promoter (ADNp) to tag the surface of mature adipocyte nuclei with a reporter protein...
2016: BMC Obesity
Sudheer K Pabbisetty, Whitney Rabacal, Emmanuel J Volanakis, Vrajesh V Parekh, Danyvid Olivares-Villagómez, Delphine Cendron, Kelli L Boyd, Luc Van Kaer, Eric Sebzda
Tregs are essential for maintaining peripheral tolerance, and thus targeting these cells may aid in the treatment of autoimmunity and cancer by enhancing or reducing suppressive functions, respectively. Before these cells can be harnessed for therapeutic purposes, it is necessary to understand how they maintain tolerance under physiologically relevant conditions. We now report that transcription factor Kruppel-like factor 2 (KLF2) controls naive Treg migration patterns via regulation of homeostatic and inflammatory homing receptors, and that in its absence KLF2-deficient Tregs are unable to migrate efficiently to secondary lymphoid organs (SLOs)...
August 9, 2016: Proceedings of the National Academy of Sciences of the United States of America
Hongxia Liu, Guofen Li, Wenxue Zhao, Yibo Hu
BACKGROUND This study was designed to investigate the effects of microRNA-92 (miR-92), Kruppel-like factor 2 (KLF2), and Kruppel-like factor 4 (KLF4) on endothelial injury after acute myocardial infarction (AMI). MATERIAL AND METHODS Blood samples were collected from 50 AMI patients for detection of cardiac troponin I (cTnI), heart-type fatty acid-binding protein (H-FABP), and von Willebrand factor (vWF). The Sprague-Dawley rat models of AMI (n=30) were established by ligating their left anterior descending coronary artery...
2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Jianbo Wang, Joana Galvao, Krista M Beach, Weijia Luo, Raul A Urrutia, Jeffrey L Goldberg, Deborah C Otteson
Regenerative medicine holds great promise for the treatment of degenerative retinal disorders. Krüppel-like factors (KLFs) are transcription factors that have recently emerged as key tools in regenerative medicine because some of them can function as epigenetic reprogrammers in stem cell biology. Here, we show that KLF16, one of the least understood members of this family, is a POU4F2 independent transcription factor in retinal ganglion cells (RGCs) as early as embryonic day 15. When overexpressed, KLF16 inhibits RGC neurite outgrowth and enhances RGC growth cone collapse in response to exogenous ephrinA5 ligands...
August 26, 2016: Journal of Biological Chemistry
Valeria Spina, Hossein Khiabanian, Monica Messina, Sara Monti, Luciano Cascione, Alessio Bruscaggin, Elisa Spaccarotella, Antony B Holmes, Luca Arcaini, Marco Lucioni, Fabrizio Tabbò, Sakellarios Zairis, Fary Diop, Michaela Cerri, Sabina Chiaretti, Roberto Marasca, Maurilio Ponzoni, Silvia Deaglio, Antonio Ramponi, Enrico Tiacci, Laura Pasqualucci, Marco Paulli, Brunangelo Falini, Giorgio Inghirami, Francesco Bertoni, Robin Foà, Raul Rabadan, Gianluca Gaidano, Davide Rossi
Nodal marginal zone lymphoma (NMZL) is a rare, indolent B-cell tumor that is distinguished from splenic marginal zone lymphoma (SMZL) by the different pattern of dissemination. NMZL still lacks distinct markers and remains orphan of specific cancer gene lesions. By combining whole-exome sequencing, targeted sequencing of tumor-related genes, whole-transcriptome sequencing, and high-resolution single nucleotide polymorphism array analysis, we aimed at disclosing the pathways that are molecularly deregulated in NMZL and we compare the molecular profile of NMZL with that of SMZL...
September 8, 2016: Blood
Fang Zhong, Sandeep K Mallipattu, Chelsea Estrada, Madhav Menon, Fadi Salem, Mukesh K Jain, Hongyu Chen, Yongjun Wang, Kyung Lee, John C He
Loss of functional nephrons induces compensatory glomerular hyperfiltration and hypertrophy, leading to the progression of chronic kidney disease. Krüppel-like factor 2 (KLF2), a shear-stress-inducible transcription factor, confers protection against endothelial injury. Because glomerular hyperfiltration is associated with shear stress, we hypothesized that KLF2 may be an important factor in the compensatory response to unilateral nephrectomy (UNX). To test this hypothesis, endothelial cell-specific Klf2 heterozygous knockout mice (KO) and their wild-type littermate control (WT) underwent either UNX or sham-operation...
August 2016: American Journal of Pathology
Wilson Chan, Hodan Ismail, Dominique Mayaki, Veronica Sanchez, Kerstin Tiedemann, Elaine C Davis, Sabah N A Hussain
BACKGROUND: Fibulin-5 is an extracellular matrix glycoprotein that plays critical roles in vasculogenesis and embryonic development. Deletion of Fibulin-5 in mice results in enhanced skin vascularization and upregulation of the angiogenesis factor angiopoietin-1 (Ang-1), suggesting that Fibulin-5 functions as an angiogenesis inhibitor. In this study, we investigate the inhibitory effects of Fibulin-5 on Ang-1/TIE-2 receptor pathway signaling and cell survival in human endothelial cells...
2016: PloS One
Ye Xiong, Jerry B Lingrel, Marcel Wüthrich, Bruce S Klein, Neelakantan T Vasudevan, Mukesh K Jain, Mariam George, George S Deepe
UNLABELLED: The adaptive immune response is tightly regulated by complex signals in dendritic cells (DCs). Although Th2 polarization is dictated by defined functional DC subsets, the molecular factors that govern the amplitude of these responses are not well understood. Krüppel-like factor 2 (KLF2) is a transcription factor that negatively regulates the activation of numerous immune cells in response to stimuli. Here, we demonstrate that suppression of KLF2 in conditioned DCs preferentially amplifies Th2 responses in two model systems, one of which is a prototypical intracellular pathogen and the other an allergen...
2016: MBio
Zinan Zhou, Alan T Tang, Weng-Yew Wong, Sharika Bamezai, Lauren M Goddard, Robert Shenkar, Su Zhou, Jisheng Yang, Alexander C Wright, Matthew Foley, J Simon C Arthur, Kevin J Whitehead, Issam A Awad, Dean Y Li, Xiangjian Zheng, Mark L Kahn
No abstract text is available yet for this article.
May 25, 2016: Nature
Fengqi Nie, Xiang Yu, Mingde Huang, Yunfei Wang, Min Xie, Hongwei Ma, Zhaoxia Wang, Wei De, Ming Sun
Recently, long noncoding RNAs have been emerged as critical regulators of human disease and prognostic markers in several cancers, including gastric cancer. In this study, we globally assessed the transcriptomic differences of lncRNAs in gastric cancer using publicly available microarray data from Gene Expression Omnibus (GEO) and identified an oncogenetic lncRNA ZFAS1, which may promote gastric tumorigenesis. ZFAS1 has been found to be upregulated and function as oncogene in colorectal cancer and hepatocellular carcinoma, but its expression pattern, biological function and underlying mechanism in gastric cancer is still undetermined...
May 26, 2016: Oncotarget
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"