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annexin A2

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https://www.readbyqxmd.com/read/28515087/fxyd5-dysadherin-may-mediate-metastatic-progression-through-regulation-of-the-%C3%AE-na-k-atpase-subunit-in-4t1-mouse-breast-cancer-model
#1
Irina Lubarski-Gotliv, Kuntal Dey, Yuri Kuznetsov, Vecheslav Kalchenco, Carol Asher, Haim Garty
FXYD5 is a Na(+)-K(+)-ATPase regulator, expressed in a variety of normal epithelia. In parallel, it has been found to be associated with several types of cancer and effect lethal outcome by promoting metastasis. However, the molecular mechanism underlying FXYD5 mediated invasion, was has not yet been identified. In this study, using in vivo 4T1 murine breast cancer model, we found that FXYD5 specific shRNA significantly inhibited lung cancer metastasis, without having a substantial effect on primary tumor growth...
May 17, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28501283/assessment-of-annexin-a5-and-annexin-a2-levels-as-biomarkers-for-pre-eclampsia-a-pilot-study
#2
Marwa Abd El-Latif, Hanan Azzam, Maha Othman, Osama Warda, Solafa El-Sharawy, Hayam Ghoneim
Deficient anticoagulant activity of annexin A5 and deficient profibrinolytic activity of annexin A2 have been linked to increased risk of thrombotic events. Placental dysfunction due to fibrin deposition/microthrombi has been implicated in the pathogenesis of pre-eclampsia (PE). In this study, we aimed to assess serum levels of annexin A5 and annexin A2 in a cohort of PE patients and investigate their role as biomarkers for the development of the disease. We examined 80 women in total; 40 healthy pregnant women and 40 pregnant women with PE after 20weeks of pregnancy...
April 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/28487977/annexin-a2-functions-downstream-of-c%C3%A2-jun-n%C3%A2-terminal-kinase-to-promote-skin-fibroblast-cell-migration
#3
Youpei Wang, Xinmei Wu, Qing Wang, Meiqin Zheng, Lingxia Pang
Delayed healing of skin wounds is one of the outcomes of diabetes mellitus (DM), a condition that affects a significant number of patients worldwide. However, the underlying mechanisms remain unknown. In order to examine proteome alterations in DM, a rat model of type 1 diabetes was developed using streptozotocin injections. The proteomic responses of normal and DM rat skin were analyzed by two‑dimensional electrophoresis, and differentially expressed proteins were identified using a liquid chromatography/mass spectrometry system...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28470457/tyr23-phosphorylation-of-anxa2-enhances-stat3-activation-and-promotes-proliferation-and-invasion-of-breast-cancer-cells
#4
Jie Yuan, Yi Yang, Zicong Gao, Zhiyong Wang, Wei Ji, Weijie Song, Fei Zhang, Ruifang Niu
PURPOSE: Overexpression of Annexin A2 (Anxa2) is positively correlated with breast cancer progression, drug resistance, and poor prognosis of patients with breast cancer. Tyr23 Phosphorylation by Src-family tyrosine kinase is an important post-translational modification of Anxa2. This modification regulates the subcellular localization and functions of Anxa2 and has significant effects on cell proliferation, migration, and invasion. This study aims at revealing the association of Anxa2-Tyr23 phosphorylation in Anxa2-mediated acceleration of breast cancer progression and their elaborate molecular mechanisms...
May 3, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28456096/identifying-low-density-lipoprotein-cholesterol-associated-variants-in-the-annexin-a2-anxa2-gene
#5
Roaa Hani Fairoozy, Jackie Cooper, Jon White, Claudia Giambartolomei, Lasse Folkersen, S Goya Wannamethee, Barbara J Jefferis, Peter Whincup, Yoav Ben-Shlomo, Meena Kumari, Mika Kivimaki, Andrew Wong, Rebecca Hardy, Diana Kuh, Tom R Gaunt, J P Casas, Stela McLachlan, Jackie F Price, Aroon Hingorani, Anders Franco-Cereceda, Thomas Grewal, Anastasia Z Kalea, Steve E Humphries
BACKGROUND AND AIMS: Annexin-A2 (AnxA2) is an endogenous inhibitor of proprotein convertase subtilisin/kexin type-9 (PCSK9). The repeat-one (R1) domain of AnxA2 binds to PCSK9, blocking its ability to promote degradation of low-density lipoprotein cholesterol-receptors (LDL-R) and thereby regulate low-density lipoprotein cholesterol (LDL-C) levels. Here we identify variants in ANXA2 influencing LDL-C levels and we determine the molecular mechanisms of their effects. RESULTS: The ANXA2 single nucleotide polymorphism (SNP) genotype-phenotype association was examined using the Second-Northwick-Park Heart Study (NPHSII) (n∼2700) and the UCL-LSHTM-Edinburgh-Bristol (UCLEB) consortium (n∼14,600)...
April 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28450451/a-novel-munc13-4-s100a10-annexin-a2-complex-promotes-weibel-palade-body-exocytosis-in-endothelial-cells
#6
Tarek Chehab, Nina Criado Santos, Anna Holthenrich, Sophia N Koerdt, Jennifer Disse, Christian Schuberth, Ali Reza Nazmi, Maaike Neeft, Henriette Koch, Kwun Nok M Man, Sonja M Wojcik, Thomas F J Martin, Peter van der Sluijs, Nils Brose, Volker Gerke
Endothelial cells respond to blood vessel injury by the acute release of pro-coagulant von-Willebrand factor (VWF) that is stored in unique secretory granules called Weibel-Palade bodies (WPBs). Stimulated WPB exocytosis critically depends on the proper recruitment of WPBs to the plasma membrane but factors involved in WPB-plasma membrane tethering are not known. Here we identify Munc13-4, a protein mutated in familial hemophagocytic lymphohistiocytosis 3 (FHL3), as a WPB tethering factor. Munc13-4 promotes histamine-evoked WPB exocytosis, it is present on WPBs, and secretagogue stimulation triggers an increased recruitment of Munc13-4 to WPBs and a clustering of Munc13-4 at sites of WPB-plasma membrane contact...
April 27, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28450113/a-co-releasing-molecule-prevents-annexin-a2-down-regulation-and-associated-disorders-in-lps-administered-rat-lung
#7
Kana Unuma, Toshihiko Aki, Kanako Noritake, Takeshi Funakoshi, Koichi Uemura
To investigate septic lung injuries and the possible relief from injury by carbon monoxide (CO), rats were intraperitoneally (i.p.) administered water or the water-soluble CO-releasing molecule CORM (30 mg/kg body weight), followed by the successive administration of PBS or lipopolysaccharide (LPS, 15 mg/kg body weight, 6 h). The results in four experimental groups (control, LPS, LPS + CORM, CORM, n = 3 or 4 in each groups) were examined. Histological examination revealed the intravascular aggregation of erythrocytes in the lungs of the LPS group, and serological analysis showed a significant increase in D-dimer in the LPS group...
April 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28440436/annexin%C3%A2-a2-inhibition-suppresses-ovarian-cancer-progression-via-regulating-%C3%AE-catenin-emt
#8
Yan Liu, Hongyu Li, Zhenying Ban, Manman Nai, Li Yang, Yannan Chen, Yiming Xu
Annexin A2 is a member of the Annexin family that acts as a Ca2+-dependent phospholipid and membrane binding protein, which is associated with the survival and spread of multiple neoplasms. However, the function of Annexin A2 in ovarian cancer progression remains unclear. In this study, we aimed to investigate the role and underlying molecular mechanism of Annexin A2 in cell proliferation and invasion in ovarian cancer. We found that the mRNA expression of Annexin A2 was upregulated in ovarian cancer tissues and cell lines...
April 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28428997/identification-of-annexin-a2-as-a-target-protein-for-plant-alkaloid-matrine
#9
Dongyao Wang, Yan Cao, Leyi Zheng, Diya Lv, Langdong Chen, Xinrui Xing, Zhenyu Zhu, Xiaoyu Li, Yifeng Chai
Matrine is a plant alkaloid and a major active component in the Chinese medical herb Sophora flavescens. Matrine has shown potent anti-cancer activities but its molecular target(s) and mechanism are still unknown. Using the photo-affinity labeling approach, for the first time, Annexin A2 was identified as a direct-binding target of matrine in cancer cells.
April 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28409884/altered-protein-expression-pattern-in-colon-tissue-of-mice-upon-supplementation-with-distinct-selenium-compounds
#10
Jette Rahn, Claudia Lennicke, Anna P Kipp, Andreas S Müller, Ludger A Wessjohann, Rudolf Lichtenfels, Barbara Seliger
The essential trace element Selenium (Se) is controversially discussed concerning its role in health and disease. Its various physiological functions are largely mediated by Se incorporation in the catalytic center of selenoproteins. To gain insights into the impact of Se deficiency and of supplementation with different Se compounds (selenite, selenate, selenomethionine) at defined concentrations (recommended, 150 μg/ kg diet; excessive, 750 μg/ kg diet) in murine colon tissues a twenty week feeding experiment was performed followed by analysis of the protein expression pattern of colon tissue specimens by 2D-DIGE and MALDI-TOF MS...
April 14, 2017: Proteomics
https://www.readbyqxmd.com/read/28404907/investigation-of-three-potential-autoantibodies-in-sjogren-s-syndrome-and-associated-malt-lymphoma
#11
Li Cui, Naseim Elzakra, Shuaimei Xu, Gary Guishan Xiao, Yan Yang, Shen Hu
Primary Sjögren's syndrome (pSS) is a chronic autoimmune disease which might progress to mucosal-associated lymphoid tissue lymphoma (pSS/MALT). Diagnosis of pSS requires an invasive tissue biopsy and a delay in diagnosis of pSS has been frequently reported. In this study, four proteins including cofilin-1, alpha-enolase, annexin A2 and Rho GDP-dissociation inhibitor 2 (RGI2) were found to be over-expressed in pSS and pSS/MALT by 2D gel electrophoresis/mass spectrometry, and the finding was verified by the microarray analysis and western blotting results...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28396717/annexin-a2-as-a-biomarker-for-hepatocellular-carcinoma-in-egyptian-patients
#12
Mohamed K Shaker, Hanzada I Abdel Fattah, Ghada S Sabbour, Iman F Montasser, Sara M Abdelhakam, Eman El Hadidy, Rehab Yousry, Ahmed K El Dorry
AIM: To investigate the clinical utility of serum annexin A2 (ANXA2) as a diagnostic marker for early hepatocellular carcinoma (HCC). METHODS: This study was performed in HCC Clinic of Ain Shams University Hospitals, Cairo, Egypt and included: Group 1: Fifty patients with early stage HCC (Barcelona Clinic Liver Cancer stage A); Group 2: Twenty five patients with chronic liver disease; and Control Group: Fifteen healthy, age- and sex-matched subjects who were seronegative for viral hepatitis markers...
March 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28382581/the-prominent-proteins-expressed-in-healthy-gingiva-a-pilot-exploratory-tissue-proteomics-study
#13
Emre Yaprak, Murat Kasap, Gürler Akpınar, Sibel Kayaaltı-Yüksek, Alper Sinanoğlu, Nil Guzel, Husniye Demirturk Kocasarac
Gingiva is a unique tissue which protects the underlying periodontal tissues from consistent mechanical and bacterial aggressions. Molecular analysis of gingiva is likely to improve our understanding of the underlying biological processes at work. The aim of this preliminary exploratory study is to analyze the proteomic profile of healthy gingiva and to detect prominently expressed proteins. Gingival tissue samples were obtained from periodontally healthy individuals who underwent surgical crown lengthening procedure...
April 5, 2017: Odontology
https://www.readbyqxmd.com/read/28377286/annexin-a2-promotes-liver-fibrosis-by-mediating-von-willebrand-factor-secretion
#14
Min Yang, Chao Wang, Sanglin Li, Xiaoming Xv, Sha She, Xiaoping Ran, Shiying Li, Huaidong Hu, Peng Hu, Dazhi Zhang, Yishan Zheng, Yixuan Yang, Hong Ren
BACKGROUND: Liver fibrosis can lead to cirrhosis and hepatocellular carcinoma if not treated in the early stages. The molecular mechanisms of the pathogenesis of hepatic fibrosis remain unclear. AIM: To identify the molecules involved in the pathogenesis of liver fibrosis and to investigate the potential effect and mechanism of Annexin A2 up-regulation during liver fibrosis progression. METHODS: Twenty Sprague-Dawley rats were divided into two groups: the carbon tetrachloride (CCl4)-induced liver fibrosis group and the normal control group...
February 27, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28336260/the-analysis-of-human-conjunctival-epithelium-proteome-in-ocular-surface-diseases-using-impression-cytology-and-2d-dige
#15
Javier Soria, Arantxa Acera, Juan A Durán, Ana Boto-de-Los-Bueis, Almudena Del-Hierro-Zarzuelo, Nerea González, Rebeca Reigada, Tatiana Suárez
Conjunctival impression cytology samples from patients with meibomian gland dysfunction (MGD), dry eye (DE), and healthy subjects (CT) were collected for determination of the degree of squamous metaplasia (SM) by PAS-hematoxylin staining and for comparative proteomic analyses by 2D-DIGE. The protein spots with discriminant expression were identified by MALDI-TOF/TOF mass spectrometry. Three independent statistical studies were conducted: i). Analysis of differential protein expression between study groups: We observed increased expression of proteins S100A4, S100A8, retinal dehydrogenase-1, peroxiredoxin-1, annexin-A1, annexin-A2, α-enolase, and glutathione S-transferase-P in DE, whereas the highest expression of peroxiredoxin-6, actin cytoplasmic-1, peroxiredoxin-2, and heat shock protein HSP-90-α was observed in MGD; ii)...
March 20, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28334824/annexin-a2-links-poor-myofiber-repair-with-inflammation-and-adipogenic-replacement-of-the-injured-muscle
#16
Aurelia Defour, Sushma Medikayala, Jack H Van der Meulen, Marshall W Hogarth, Nicholas Holdreith, Apostolos Malatras, William Duddy, Jessica Boehler, Kanneboyina Nagaraju, Jyoti K Jaiswal
Repair of skeletal muscle after sarcolemmal damage involves dysferlin and dysferlin-interacting proteins such as annexins. Mice and patient lacking dysferlin exhibit chronic muscle inflammation and adipogenic replacement of the myofibers. Here, we show that similar to dysferlin, lack of annexin A2 (AnxA2) also results in poor myofiber repair and progressive muscle weakening with age. By longitudinal analysis of AnxA2-deficient muscle we find that poor myofiber repair due to the lack of AnxA2 does not result in chronic inflammation or adipogenic replacement of the myofibers...
June 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28283478/annexin-a2-contributes-to-lung-injury-and-fibrosis-by-augmenting-factor-xa-fibrogenic-activity
#17
Michael Schuliga, Jade Jaffar, Asres Berhan, Shenna Langenbach, Trudi Harris, David Waters, Peter V S Lee, Christopher Grainge, Glen Westall, Darryl Knight, Alastair G Stewart
In lung injury and disease, including idiopathic pulmonary fibrosis (IPF), extravascular factor X is converted into factor Xa (FXa), a coagulant protease with fibrogenic actions. Extracellular annexin A2 binds to FXa, augmenting activation of the protease-activated receptor-1 (PAR-1). In this study, the contribution of annexin A2 in lung injury and fibrosis was investigated. Annexin A2 immunoreactivity was observed in regions of fibrosis, including those associated with fibroblasts in lung tissue of IPF patients...
May 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28270598/sensing-of-cell-stress-by-human-%C3%AE-%C3%AE-tcr-dependent-recognition-of-annexin-a2
#18
Romain Marlin, Angela Pappalardo, Hannah Kaminski, Carrie R Willcox, Vincent Pitard, Sonia Netzer, Camille Khairallah, Anne-Marie Lomenech, Christelle Harly, Marc Bonneville, Jean-François Moreau, Emmanuel Scotet, Benjamin E Willcox, Benjamin Faustin, Julie Déchanet-Merville
Human γδ T cells comprise a first line of defense through T-cell receptor (TCR) recognition of stressed cells. However, the molecular determinants and stress pathways involved in this recognition are largely unknown. Here we show that exposure of tumor cells to various stress situations led to tumor cell recognition by a Vγ8Vδ3 TCR. Using a strategy that we previously developed to identify antigenic ligands of γδ TCRs, annexin A2 was identified as the direct ligand of Vγ8Vδ3 TCR, and was found to be expressed on tumor cells upon the stress situations tested in a reactive oxygen species-dependent manner...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28258160/a-new-cis-acting-motif-is-required-for-the-axonal-smn-dependent-anxa2-mrna-localization
#19
Khalil Rihan, Etienne Antoine, Thomas Maurin, Barbara Bardoni, Rémy Bordonné, Johann Soret, Florence Rage
Spinal muscular atrophy (SMA) is caused by mutations and/or deletions of the survival motor neuron gene (SMN1). Besides its function in the biogenesis of spliceosomal snRNPs, SMN might possess a motor neuron specific role and could function in the transport of axonal mRNAs and in the modulation of local protein translation. Accordingly, SMN colocalizes with axonal mRNAs of differentiated NSC-34 motor neuron-like cells. We recently showed that SMN depletion gives rise to a decrease in the axonal transport of the mRNAs encoding Annexin A2 (Anxa2)...
March 3, 2017: RNA
https://www.readbyqxmd.com/read/28254663/anti-tumorigenic-and-anti-angiogenic-effects-of-natural-conifer-abies-sibirica-terpenoids-in-vivo-and-in-vitro
#20
Yulia A Nevzorova, Johannes Grossmann, Christian Trautwein
AIM: The natural terpenoid compound was explored in vitro and in vivo to investigate the anti-HCC properties. METHODS: For our study we used Abisilin(®)- a novel natural pharmacological terpenoid compound extracted and purified from coniferous Pinaceae trees. Anti-tumorigenic properties of different concentrations of Abisilin(®) were tested on murine hepatoma Hepa 1-6 cell lines. The analysis of proliferation and apoptosis was performed using immunofluorescence microscopy, FACS and qPCR...
May 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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