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https://www.readbyqxmd.com/read/28912778/neuroprotective-effects-of-annexin-a1-tripeptide-after-deep-hypothermic-circulatory-arrest-in-rats
#1
Zhiquan Zhang, Qing Ma, Bijal Shah, G Burkhard Mackensen, Donald C Lo, Joseph P Mathew, Mihai V Podgoreanu, Niccolò Terrando
Resolution agonists, including lipid mediators and peptides such as annexin A1 (ANXA1), are providing novel approaches to treat inflammatory conditions. Surgical trauma exerts a significant burden on the immune system that can affect and impair multiple organs. Perioperative cerebral injury after cardiac surgery is associated with significant adverse neurological outcomes such as delirium and postoperative cognitive dysfunction. Using a clinically relevant rat model of cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest (DHCA), we tested the pro-resolving effects of a novel bioactive ANXA1 tripeptide (ANXA1sp) on neuroinflammation and cognition...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28901452/screening-critical-genes-associated-with-malignant-glioma-using-bioinformatics-analysis
#2
Yonggang Xu, Jie Wang, Yanbin Xu, Hong Xiao, Jianhua Li, Zhi Wang
Malignant gliomas are high‑grade gliomas, which are derived from glial cells in the spine or brain. To examine the mechanisms underlying malignant gliomas in the present study, the expression profile of GSE54004, which included 12 grade II astrocytomas, 33 grade III astrocytomas and 98 grade IV astrocytomas, was downloaded from the Gene Expression Omnibus. Using the Limma package in R, the differentially expressed genes (DEGs) in grade III, vs. grade II astrocytoma, grade IV, vs. grade II astrocytoma, and grade IV, vs...
September 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28864021/the-core-transcriptome-of-mammalian-placentas-and-the-divergence-of-expression-with-placental-shape
#3
Don L Armstrong, Michael R McGowen, Amy Weckle, Priyadarshini Pantham, Jason Caravas, Dalen Agnew, Kurt Benirschke, Sue Savage-Rumbaugh, Eviatar Nevo, Chong J Kim, Günter P Wagner, Roberto Romero, Derek E Wildman
INTRODUCTION: The placenta is arguably the most anatomically variable organ in mammals even though its primary function is conserved. METHOD: Using RNA-Seq, we measured the expression profiles of 55 term placentas of 14 species of mammals representing all major eutherian superordinal clades and marsupials, and compared the evolution of expression across clades. RESULTS: We identified a set of 115 core genes which is expressed (FPKM ≥10) in all eutherian placentas, including genes with immune-modulating properties (ANXA2, ANXA1, S100A11, S100A10, and LGALS1), cell-cell interactions (LAMC1, LUM, and LGALS1), invasion (GRB2 and RALB) and syncytialization (ANXA5 and ANXA1)...
September 2017: Placenta
https://www.readbyqxmd.com/read/28811325/ppar%C3%AE-ligand-induced-annexin-a1-expression-determines-chemotherapy-response-via-deubiquitination-of-death-domain-kinase-rip-in-triple-negative-breast-cancers
#4
Luxi Chen, Yi Yuan, Shreya Kar, Madhu M Kanchi, Suruchi Arora, Ji E Kim, Pei F Koh, Einas Yousef, Ramar P Samy, Muthu K Shanmugam, Tuan Z Tan, Sung W Shin, Frank Arfuso, Han M Shen, Henry Yang, Boon C Goh, Joo I Park, Louis Gaboury, Peter E Lobie, Gautam Sethi, Lina Hk Lim, Alan P Kumar
Metastatic breast cancer is still remain incurable so far, new specifically targeted and more effective therapies for triple negative breast cancer (TNBC) are required in the clinic. In this study, our clinical data has established that basal and claudin-low subtypes of breast cancer (TNBC types) express significantly higher levels of Annexin A1 (ANXA1) with poor survival outcomes. Using human cancer cell lines which model the TNBC subtype, we observed a strong positive correlation between expression of ANXA1 and Peroxisome Proliferator-Activated Receptor gamma (PPARγ)...
August 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28809781/ac2-26-an-annexin-a1-peptide-attenuates-ischemia-reperfusion-induced-acute-lung-injury
#5
Wen-I Liao, Shu-Yu Wu, Geng-Chin Wu, Hsin-Ping Pao, Shih-En Tang, Kun-Lun Huang, Shi-Jye Chu
Annexin A1 (AnxA1) is an endogenous protein that modulates anti-inflammatory processes, and its therapeutic potential has been reported in a range of inflammatory diseases. The effect of AnxA1 on ischemia-reperfusion (IR)-induced lung injury has not been examined. In this study, isolated, perfused rat lungs were subjected to IR lung injury induced by ischemia for 40 min, followed by reperfusion for 60 min. The rat lungs were randomly treated with vehicle (phosphate-buffered saline), and Ac2-26 (an active N-terminal peptide of AnxA1) with or without an N-formyl peptide receptor (FPR) antagonist N-Boc-Phe-Leu-Phe-Leu-Phe (Boc2)...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28754915/annexin-a1-down-regulation-in-head-and-neck-squamous-cell-carcinoma-is-mediated-via-transcriptional-control-with-direct-involvement-of-mir-196a-b
#6
Saúl Álvarez-Teijeiro, Sofía T Menéndez, M Ángeles Villaronga, Emma Pena-Alonso, Juan P Rodrigo, Reginald O Morgan, Rocío Granda-Díaz, Cecilia Salom, M Pilar Fernandez, Juana M García-Pedrero
Annexin A1 (ANXA1) down-regulation is an early and frequent event in the development of head and neck squamous cell carcinomas (HNSCC). In an attempt to identify the underlying mechanisms of reduced ANXA1 protein expression, this study investigated ANXA1 mRNA expression in HNSCC specimens by both in situ hybridization and RT-qPCR. Results showed a perfect concordance between the pattern of ANXA1 mRNA and protein detected by immunofluorescence in tumors, precancerous lesions and normal epithelia, reflecting that ANXA1 down-regulation occurs at transcriptional level...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28745444/comparison-of-the-proteomes-of-mouse-skin-derived-precursors-skps-and-skp-derived-fibroblasts-sfbs-by-itraq
#7
Yujie Mao, Lidan Xiong, Li Li
Skin-derived precursors (SKPs) can differentiate into fibroblasts. However, little is known about the molecular mechanism of the differentiation process. Our previous study has compared the transcriptomes of mouse SKPs and SKP- derived fibroblasts (SFBs) by RNA-Seq analysis and found some genes and signal pathways that might play important roles in the transition from SKPs to SFBs. Here, to further investigate the process by which SKPs differentiate into fibroblasts, we compared the proteomes between SKPs and SFBs using iTRAQ...
July 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28732379/integrative-analysis-of-novel-hypomethylation-and-gene-expression-signatures-in-glioblastomas
#8
Anan Yin, Amandine Etcheverry, Yalong He, Marc Aubry, Jill Barnholtz-Sloan, Luhua Zhang, Xinggang Mao, Weijun Chen, Bolin Liu, Wei Zhang, Jean Mosser, Xiang Zhang
Molecular and clinical heterogeneity critically hinders better treatment outcome for glioblastomas (GBMs); integrative analysis of genomic and epigenomic data may provide useful information for improving personalized medicine. By applying training-validation approach, we identified a novel hypomethylation signature comprising of three CpGs at non-CpG island (CGI) open sea regions for GBMs. The hypomethylation signature consistently predicted poor prognosis of GBMs in a series of discovery and validation datasets...
July 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28724795/alx-receptor-ligands-define-a-biochemical-endotype-for-severe-asthma
#9
Isabell Ricklefs, Ioanna Barkas, Melody G Duvall, Manuela Cernadas, Nicole L Grossman, Elliot Israel, Eugene R Bleecker, Mario Castro, Serpil C Erzurum, John V Fahy, Benjamin M Gaston, Loren C Denlinger, David T Mauger, Sally E Wenzel, Suzy A Comhair, Andrea M Coverstone, Merritt L Fajt, Annette T Hastie, Mats W Johansson, Michael C Peters, Brenda R Phillips, Bruce D Levy
BACKGROUND: In health, inflammation resolution is an active process governed by specialized proresolving mediators and receptors. ALX/FPR2 receptors (ALX) are targeted by both proresolving and proinflammatory ligands for opposing signaling events, suggesting pivotal roles for ALX in the fate of inflammatory responses. Here, we determined if ALX expression and ligands were linked to severe asthma (SA). METHODS: ALX expression and levels of proresolving ligands (lipoxin A4 [LXA4], 15-epi-LXA4, and annexin A1 [ANXA1]), and a proinflammatory ligand (serum amyloid A [SAA]) were measured in bronchoscopy samples collected in Severe Asthma Research Program-3 (SA [n = 69], non-SA [NSA, n = 51] or healthy donors [HDs, n = 47])...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28712927/role-of-hepatic-annexin-a6-in-fatty-acid-induced-lipid-droplet-formation
#10
Rose Cairns, Anna Alvarez-Guaita, Inés Martínez-Saludes, Sundeep J Wason, Jacky Hanh, Shilpa R Nagarajan, Elham Hosseini-Beheshti, Katia Monastyrskaya, Andrew J Hoy, Christa Buechler, Carlos Enrich, Carles Rentero, Thomas Grewal
Annexin A6 (AnxA6) has been implicated in the regulation of endo-/exocytic pathways, cholesterol transport, and the formation of multifactorial signaling complexes in many different cell types. More recently, AnxA6 has also been linked to triglyceride storage in adipocytes. Here we investigated the potential role of AnxA6 in fatty acid (FA) - induced lipid droplet (LD) formation in hepatocytes. AnxA6 was associated with LD from rat liver and HuH7 hepatocytes. In oleic acid (OA) -loaded HuH7 cells, substantial amounts of AnxA6 bound to LD in a Ca(2+)-independent manner...
July 14, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28693070/-expression-of-annexin-a1-in-peripheral-blood-cells-of-na%C3%A3-ve-rheumatoid-arthritis-patients-and-its-influencing-factors
#11
Y F Mei, S M Dai, H N Jia, Z G Lin, Z Y Zhang
Objective: To explore the expression of Annexin a1 (AnxA1) mRNA in peripheral blood mononuclear cells (PBMC) from Naïve rheumatoid arthritis (RA) patients and healthy controls and to investigate its influencing factors. Methods: Thirty Naïve RA patients and 36 healthy controls were recruited from the First Affiliated Hospital of Harbin Medical University between May 2013 and January 2015.All RA patients were fulfilled the classification criteria of ACR in 1987.Clinical characteristics and laboratory indexes were collected...
July 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28655761/the-resolution-of-acute-inflammation-induced-by-cyclic-amp-is-dependent-on-annexin-a1
#12
Kátia M Lima, Juliana P Vago, Thaís R Caux, Graziele Letícia Negreiros-Lima, Michelle A Sugimoto, Luciana P Tavares, Raquel G Arribada, Aline Alves F Carmo, Izabela Galvão, Bruno Rocha C Costa, Frederico M Soriani, Vanessa Pinho, Egle Solito, Mauro Perretti, Mauro M Teixeira, Lirlândia P Sousa
Annexin A1 (AnxA1) is a glucocorticoid-regulated protein known for its anti-inflammatory and pro-resolving effects. We have shown previously that the cAMP-enhancing compounds rolipram (ROL; a PDE4 inhibitor) and Bt2cAMP (a cAMP mimetic) drive caspase-dependent resolution of neutrophilic inflammation. In this follow-up study, we investigated whether AnxA1 could be involved in the pro-resolving properties of these compounds using a model of LPS-induced inflammation in BALB/c mice. The treatment with ROL or Bt2cAMP at the peak of inflammation shortened resolution intervals, improved resolution indices, and increased AnxA1 expression...
August 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28569789/knockdown-of-mir-128a-induces-lin28a-expression-and-reverts-myeloid-differentiation-blockage-in-acute-myeloid-leukemia
#13
Luciana De Luca, Stefania Trino, Ilaria Laurenzana, Daniela Tagliaferri, Geppino Falco, Vitina Grieco, Gabriella Bianchino, Filomena Nozza, Valentina Campia, Francesca D'Alessio, Francesco La Rocca, Antonella Caivano, Oreste Villani, Daniela Cilloni, Pellegrino Musto, Luigi Del Vecchio
Lin28A is a highly conserved RNA-binding protein that concurs to control the balance between stemness and differentiation in several tissue lineages. Here, we report the role of miR-128a/Lin28A axis in blocking cell differentiation in acute myeloid leukemia (AML), a genetically heterogeneous disease characterized by abnormally controlled proliferation of myeloid progenitor cells accompanied by partial or total inability to undergo terminal differentiation. First, we found Lin28A underexpressed in blast cells from AML patients and AML cell lines as compared with CD34+ normal precursors...
June 1, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28551657/circulating-antibodies-to-linear-peptide-antigens-derived-from-anxa1-and-foxp3-in-lung-cancer
#14
Weili Wang, Wen Zhong, Cairen Chen, Qingyong Meng, Jun Wei
BACKGROUND: Our previous studies revealed that concentrations of circulating antibodies to annexin A1 (ANXA1) and forkhead-box P3 (FOXP3) increased significantly in patients with non-small cell lung cancer (NSCLC). This study was thus undertaken to replicate our initial findings with different sample sets. PATIENTS AND METHODS: Antibodies were tested in 108 patients with NSCLC and 216 controls, who were divided into the discovery (49 vs. 108) and validation (60 vs...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28524456/endothelial-microparticles-released-by-activated-protein-c-protect-beta-cells-through-epcr-par1-and-annexin-a1-fpr2-pathways-in-islets
#15
Guillaume Kreutter, Mohamad Kassem, Ali El Habhab, Philippe Baltzinger, Malak Abbas, Julie Boisrame-Helms, Lamia Amoura, Jean Peluso, Blandine Yver, Zobairi Fatiha, Geneviève Ubeaud-Sequier, Laurence Kessler, Florence Toti
Islet transplantation is associated with early ischaemia/reperfusion, localized coagulation and redox-sensitive endothelial dysfunction. In animal models, islet cytoprotection by activated protein C (aPC) restores islet vascularization and protects graft function, suggesting that aPC triggers various lineages. aPC also prompts the release of endothelial MP that bear EPCR, its specific receptor. Microparticles (MP) are plasma membrane procoagulant vesicles, surrogate markers of stress and cellular effectors...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28471519/mast-cells-mediate-early-neutrophil-recruitment-and-exhibit-anti-inflammatory-properties-via-the-formyl-peptide-receptor-2-lipoxin-a4-receptor
#16
Ellen L Hughes, Felix Becker, Roderick J Flower, Julia C Buckingham, Felicity N E Gavins
BACKGROUND AND PURPOSE: In recent years, studies have focused on the resolution of inflammation, which can be achieved by endogenous anti-inflammatory agonists such as Annexin A1 (AnxA1). Here, we investigated the effects of mast cells (MCs) on early LPS-induced neutrophil recruitment and the involvement of the AnxA1-formyl peptide receptor 2/ALX (FPR2/ALX or lipoxin A4 receptor) pathway. EXPERIMENTAL APPROACH: Intravital microscopy (IVM) was used to visualize and quantify the effects of LPS (10 μg per mouse i...
July 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28442415/retro-inverso-d-peptide-modified-hyaluronic-acid-bioreducible-hyperbranched-poly-amido-amine-pdna-core-shell-ternary-nanoparticles-for-the-dual-targeted-delivery-of-short-hairpin-rna-encoding-plasmids
#17
Jijin Gu, Xinyi Chen, Xiaoling Fang, Xianyi Sha
The active targeting of gene carriers is a powerful strategy for improving tumour-specific delivery and therapy. Although numerous l-peptide ligands play significant roles in the active targeting of nanomedicine, retro-inverso d-peptides have been explored as targeting ligands due to their superior stability and bioactivity in vivo. In this study, retro-inverso d-peptide (RIF7)-modified hyaluronic acid (HA)/bioreducible hyperbranched poly(amido amine) (RHB)/plasmid DNA (pDNA) ternary nanoparticles were successfully developed using the layer-by-layer method for the CD44-positive tumour-specific delivery of short hairpin RNA (shRNA)-encoding pDNA through the combination of the Anxa1 (tumour vasculature) and CD44 (tumour cell-surface) receptors, which mediated the dual targeting...
April 22, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28414743/the-et-1-mediated-carbonylation-and-degradation-of-anxa1-induce-inflammatory-phenotype-and-proliferation-of-pulmonary-artery-smooth-muscle-cells-in-hps
#18
Jing He, Bin Yi, Yang Chen, Qing Huang, Huan Wang, Kaizhi Lu, Weiling Fu
Hepatopulmonary syndrome (HPS) is a serious complication of advanced liver disease, which markedly increases mortality. Pulmonary vascular remodelling (PVR) induced by circulating mediators plays an important role in the pathogenesis of HPS, while the underlying mechanism remains undefined. In the present study, we reported that endothelin-1 (ET-1) is up-regulated and annexin A1(ANXA1) is down-regulated in HPS rat, and ET-1 decreases the ANXA1 expression in a dose-dependent manner in rat pulmonary arterial smooth muscle cells (PASMCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28392898/comparative-proteome-analysis-of-human-esophageal-cancer-and-adjacent-normal-tissues
#19
Rezvan Yazdian-Robati, Homa Ahmadi, Maryam Matbou Riahi, Parisa Lari, Seyed Amir Aledavood, Marzieh Rashedinia, Khalil Abnous, Mohammad Ramezani
OBJECTIVES: Ranking as the sixth commonest cancer, esophageal squamous cell carcinoma (ESCC) represents one of the leading causes of cancer death worldwide. One of the main reasons for the low survival of patients with esophageal cancer is its late diagnosis. MATERIALS AND METHODS: We used proteomics approach to analyze ESCC tissues with the aim of a better understanding of the malignant mechanism and searching candidate protein biomarkers for early diagnosis of esophageal cancer...
March 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28389361/annexin-a1-nuclear-translocation-induces-retinal-ganglion-cell-apoptosis-after-ischemia-reperfusion-injury-through-the-p65-il-1%C3%AE-pathway
#20
Yin Zhao, Xing Li, Jieling Gong, Lu Li, Liwen Chen, Lu Zheng, Zhiqi Chen, Jing Shi, Hong Zhang
The degeneration of retinal ganglion cells (RGCs) has been identified as a major problem in glaucoma. Previous studies have indicated an association between annexin A1 (ANXA1) and neuronal cell apoptosis, and RGCs apoptosis in acute ischemia-reperfusion was attributed to an increased production of IL-1β. We found that the expression and nuclear translocation of ANXA1 were upregulated in models of acute ischemia-reperfusion in RGCs in vivo. ANXA1 was found to have a promoting effect on the expression of IL-1β in primary cultured RGCs, which could be inhibited by treatment with ANXA1 shRNA or the p65 inhibitor BAY 11-7082...
April 4, 2017: Biochimica et Biophysica Acta
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