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https://www.readbyqxmd.com/read/29326439/lung-fibroblasts-promote-metastatic-colonization-through-upregulation-of-stearoyl-coa-desaturase-1-in-tumor-cells
#1
Guanghua Liu, Shi Feng, Lin Jia, Chunying Wang, Yan Fu, Yongzhang Luo
As a rate-limiting step in metastasis, metastatic colonization requires survival signals from supportive stroma. However, the mechanisms driving this process are incompletely understood. Here, we showed that the proliferation of B16F10 cells was promoted when cocultured with lung fibroblasts. Meanwhile, co-injection of B16F10 tumor cells with mouse lung fibroblasts significantly increased lung metastasis. Based on GEO database, we identified stearoyl-CoA desaturase 1 (SCD1) as a novel factor promoting metastatic colonization...
January 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29291003/pseudogenes-of-annexin-a2-novel-prognosis-biomarkers-for-diffuse-gliomas
#2
Shuang Li, Hecun Zou, Ying-Ying Shao, Ying Mei, Yu Cheng, Dong-Li Hu, Zhi-Rong Tan, Hong-Hao Zhou
Diffuse gliomas is a kind of common malignant primary brain tumor. Pseudogenes have multilayered biological function in the progression of human cancers. In this study, Differentially Expressed Pseudogenes (DEPs) between glioblastomas and non-tumor controls were found by bioinformatics analysis, of which the annexin A2 pseudogenes (ANXA2P1, ANXA2P2 and ANXA2P3) were significantly up-regulated, along with the parent gene annexin A2 (ANXA2). Among four glioblastoma subtypes, ANXA2P1 and ANXA2P2 were preferentially expressed in mesenchymal subtype and less expressed in proneural subtype...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290958/stromal-annexin-a2-expression-is-predictive-of-decreased-survival-in-pancreatic-cancer
#3
Adrian G Murphy, Kelly Foley, Agnieszka A Rucki, Tao Xia, Elizabeth M Jaffee, Chiung-Yu Huang, Lei Zheng
Pancreatic ductal adenocarcinoma (PDA) is renowned for high rates of metastasis and poor survival. Its notoriously dense fibrotic stroma contributes to chemoresistance. Stromal signaling in PDA is recognized for its multiple roles in regulating tumor invasion and metastasis. However, no stromal biomarker which can predict survival in PDA exists. Annexin A2 (AnxA2) was formerly identified as a metastasis-associated protein in PDA and tumoral overexpression is associated with poor survival. In this study, we examined AnxA2 expression in the tumor microenvironment in a preclinical model of PDA which suggests its role in tumor colonization...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228983/characterization-of-interactions-between-hepatitis-c-virus-ns5b-polymerase-annexin-a2-and-rna-effects-on-ns5b-catalysis-and-allosteric-inhibition
#4
Sara M Ø Solbak, Eldar Abdurakhmanov, Anni Vedeler, U Helena Danielson
BACKGROUND: Direct acting antivirals (DAAs) provide efficient hepatitis C virus (HCV) therapy and clearance for a majority of patients, but are not available or effective for all patients. They risk developing HCV-induced hepatocellular carcinoma (HCC), for which the mechanism remains obscure and therapy is missing. Annexin A2 (AnxA2) has been reported to co-precipitate with the non-structural (NS) HCV proteins NS5B and NS3/NS4A, indicating a role in HCC tumorigenesis and effect on DAA therapy...
December 11, 2017: Virology Journal
https://www.readbyqxmd.com/read/29217762/sirt6-is-a-target-of-regulation-by-ube3a-that-contributes-to-liver-tumorigenesis-in-an-anxa2-dependent-manner
#5
Saishruti Kohli, Abhishek Bhardwaj, Richa Kumari, Sanjeev Das
UBE3A is an E3 ubiquitin ligase well known for its role in the proteasomal degradation of p53 in human papillomavirus (HPV)-associated cancers. Here we report that UBE3A ubiquitylates and triggers degradation of the tumor suppressive sirtuin SIRT6 in hepatocellular carcinoma. UBE3A ubiquitylated the highly conserved Lys160 residue on SIRT6. FOXO1-mediated transcriptional repression of UBE3A was sufficient to stabilize SIRT6 and epigenetically repress ANXA2, a key mediator of UBE3A oncogenic function. Thus, UBE3A-mediated SIRT6 degradation promoted the proliferative capacity, migration potential and invasiveness of cells...
December 7, 2017: Cancer Research
https://www.readbyqxmd.com/read/29217666/epac1-regulates-endothelial-annexin-a2-cell-surface-translocation-and-plasminogen-activation
#6
Wenli Yang, Fang C Mei, Xiaodong Cheng
Annexins, a family of highly conserved calcium- and phospholipid-binding proteins, play important roles in a wide range of physiologic functions. Among the 12 known annexins in humans, annexin A2 (AnxA2) is one of the most extensively studied and has been implicated in various human diseases. AnxA2 can exist as a monomer or a heterotetrameric complex with S100A10 (P11) and plays a critical role in many cellular processes, including exocytosis, endocytosis, and membrane organization. At the endothelial cell surface, the (AnxA2·P11)2 tetramer-acting as a coreceptor for plasminogen and tissue plasminogen activator (tPA)-accelerates tPA-dependent activation of the fibrinolytic protease, plasmin, the enzyme that is responsible for thrombus dissolution and the degradation of fibrin...
December 7, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29187477/proteins-annexin-a2-and-psa-in-prostate-cancer-biopsies-do-not-predict-biochemical-failure
#7
David S Lamb, Sven Sondhauss, Jonathan C Dunne, Lisa Woods, Brett Delahunt, Peter Ferguson, Judith Murray, John N Nacey, James W Denham, T William Jordan
BACKGROUND/AIM: We previously reported the use of mass spectrometry and western blotting to identify proteins from tumour regions of formalin-fixed paraffin-embedded biopsies from 16 men who presented with apparently localized prostate cancer, and found that annexin A2 (ANXA2) appeared to be a better predictor of subsequent biochemical failure than prostate-specific antigen (PSA). MATERIALS AND METHODS: In this follow-up study, ANXA2 and PSA were measured using western blotting of proteins extracted from biopsies from 37 men from a subsequent prostate cancer trial...
December 2017: Anticancer Research
https://www.readbyqxmd.com/read/29172997/identification-of-anxa2-annexin-a2-as-a-specific-bleomycin-target-to-induce-pulmonary-fibrosis-by-impeding-tfeb-mediated-autophagic-flux
#8
Kui Wang, Tao Zhang, Yunlong Lei, Xuefeng Li, Jingwen Jiang, Jiang Lan, Yuan Liu, Haining Chen, Wei Gao, Na Xie, Qiang Chen, Xiaofeng Zhu, Xiang Liu, Ke Xie, Yong Peng, Edouard C Nice, Min Wu, Canhua Huang, Yuquan Wei
Bleomycin is a clinically potent anticancer drug used for the treatment of germ-cell tumors, lymphomas and squamous-cell carcinomas. Unfortunately, the therapeutic efficacy of bleomycin is severely hampered by the development of pulmonary fibrosis. However, the mechanisms underlying bleomycin-induced pulmonary fibrosis, particularly the molecular target of bleomycin, remains unknown. Here, using a chemical proteomics approach, we identify ANXA2 (annexin A2) as a direct binding target of bleomycin. The interaction of bleomycin with ANXA2 was corroborated both in vitro and in vivo...
November 26, 2017: Autophagy
https://www.readbyqxmd.com/read/29123978/deep-sequencing-and-comprehensive-expression-analysis-identifies-several-molecules-potentially-related-to-human-poorly-differentiated-hepatocellular-carcinoma
#9
Ping Shao, Deguang Sun, Liming Wang, Rong Fan, Zhenming Gao
Hepatocellular carcinoma (HCC) that is graded histologically as poorly differentiated has a high recurrence, metastasis and poor prognosis. We sought to determine the regulatory mechanisms of HCC tumorigenesis and to identify molecules closely related to poorly differentiated HCC. High-throughput sequencing was used to construct microRNA (miRNA) and mRNA expression profiles for poorly differentiated HCC tissues and adjacent tissues. Network analysis was carried out to study miRNA-target interactions. Integrating the miRNA and mRNA data of HCC with four tumor grades from The Cancer Genome Atlas (TCGA) portal enabled the identification of potential closely related molecules for early diagnosis of poorly differentiated HCC...
November 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29123635/er-yag-laser-and-cyclosporin-a-effect-on-cell-cycle-regulation-of-human-gingival-fibroblast-cells
#10
Hojjat-Allah Abbaszadeh, Ali Asghar Peyvandi, Yousef Sadeghi, Akram Safaei, Mona Zamanian-Azodi, Maryam Sadat Khoramgah, Mostafa Rezaei-Tavirani
Introduction: Periodontitis is a set of inflammatory disorders characterized by periodontal attachment loss and alveolar bone resorption. Because of deficiency in periodontitis mechanical therapy, this study was aimed to explore the molecular influence of the erbiumdoped: yttrium aluminum garnet (Er:YAG) laser and cyclosporin A (CsA) on human gingival fibroblasts (HGFs) for improvement in periodontal diseases therapy. Methods: We focused on articles that studied the proteome profiles of HGFs after treatment with laser irradiation and application of CsA...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29030970/annexin-a1-annexin-a2-and-dyrk-1b-are-upregulated-during-gas1-induced-cell-cycle-arrest
#11
G Pérez-Sánchez, A Jiménez, M A Quezada-Ramírez, E Estudillo, A E Ayala-Sarmiento, G Mendoza-Hernández, Justino Hernández-Soto, F C Hernández-Hernández, F E Cázares-Raga, J Segovia
GAS1 is a pleiotropic protein that has been investigated because of its ability to induce cell proliferation, cell arrest, and apoptosis, depending on the cellular or the physiological context in which it is expressed. At this point, we have information about the molecular mechanisms by which GAS1 induces proliferation and apoptosis; but very few studies have been focused on elucidating the mechanisms by which GAS1 induces cell arrest. With the aim of expanding our knowledge on this subject, we first focused our research on finding proteins that were preferentially expressed in cells arrested by serum deprivation...
October 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28989535/investigating-the-microrna-mrna-regulatory-network-in-acute-myeloid-leukemia
#12
Haiguo Zhang, Chengfang Zhang, Rui Feng, Haixia Zhang, Min Gao, Ling Ye
Acute myeloid leukemia (AML) is a common myelogenous malignancy in adults that is often characterized by disease relapse. The pathophysiological mechanism of AML has not yet been elucidated. The present study aimed to identify the crucial microRNAs (miRNAs/miRs) and target genes in AML, and to uncover the potential oncogenic mechanism of AML. miRNA and mRNA expression-profiling microarray datasets were downloaded from the Gene Expression Omnibus database. Differential expression analysis was performed and a regulatory network between miRNAs and target genes was constructed...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28976984/mycoplasma-associated-multidrug-resistance-of-hepatocarcinoma-cells-requires-the-interaction-of-p37-and-annexin-a2
#13
Danyang Liu, Yang Hu, Ying Guo, Zhu Zhu, Bingzheng Lu, Xuelan Wang, Yijun Huang
Mycoplasma infection has been reported to be associated with cancer migration, invasion, epithelial-mesenchymal transition as well as the resistance to nucleoside analogues chemotherapeutic drugs. In this study, we found that the sensitivity of hepatocarcinoma cells to Cisplatin, Gemcitabine and Mitoxantrone was increased by mycoplasma elimination. Similar to the effect of anti-mycoplasma agent, interrupting the interaction between Mycoplasma hyorhinis membrane protein P37 and Annexin A2 of host cells using the N-terminal of ANXA2 polypeptide enhanced the sensitivity of HCC97L cells to Gemcitabine and Mitoxantrone...
2017: PloS One
https://www.readbyqxmd.com/read/28967196/tetrazole-based-probes-for-integrated-phenotypic-screening-affinity-based-proteome-profiling-and-sensitive-detection-of-a-cancer-biomarker
#14
Ke Cheng, Jun-Seok Lee, Piliang Hao, Shao Q Yao, Ke Ding, Zhengqiu Li
Target-identification phenotypic screening has been a powerful approach in drug discovery; however, it is hindered by difficulties in identifying the underlying cellular targets. To address this challenge, we have combined phenotypic screening of a fully functionalized small-molecule library with competitive affinity-based proteome profiling to map and functionally characterize the targets of screening hits. Using this approach, we identified ANXA2, PDIA3/4, FLAD1, and NOS2 as primary cellular targets of two bioactive molecules that inhibit cancer cell proliferation...
October 1, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28947421/mesenchymal-stem-cells-promote-hepatocarcinogenesis-via-lncrna-muf-interaction-with-anxa2-and-mir-34a
#15
Xinlong Yan, Dongdong Zhang, Wei Wu, Shuheng Wu, Jingfeng Qian, Yajing Hao, Fang Yan, Pingping Zhu, Jiayi Wu, Guanling Huang, Yinghui Huang, Jianjun Luo, Xinhui Liu, Benyu Liu, Xiaomin Chen, Ying Du, Run-Sheng Chen, Zusen Fan
Accumulating evidence suggests that cancer-associated mesenchymal stem cells (MSC) contribute to the development and metastasis of hepatocellular carcinoma (HCC). Aberrant expression of long noncoding RNAs (lncRNA) has been associated with these processes but cellular mechanisms are obscure. In this study, we report that HCC-associated mesenchymal stem cells (HCC-MSC) promote epithelial-mesenchymal transition (EMT) and liver tumorigenesis. We identified a novel lncRNA that we termed lncRNA-MUF (MSC upregulated factor) that is highly expressed in HCC tissues and correlated with poor prognosis...
September 25, 2017: Cancer Research
https://www.readbyqxmd.com/read/28943392/an-integrative-analysis-of-chemically-induced-cirrhosis-associated-hepatocarcinogenesis-histological-biochemical-and-molecular-features
#16
Guilherme Ribeiro Romualdo, Tony Fernando Grassi, Renata Leme Goto, Mariana Baptista Tablas, Lucas Tadeu Bidinotto, Ana Angélica Henrique Fernandes, Bruno Cogliati, Luís Fernando Barbisan
This study aimed the integrative characterization of morphological, biochemical and molecular features of chemically-induced cirrhosis-associated hepatocarcinogenesis. Thus, male Wistar rats were submitted to a diethylnitrosamine (DEN)/thioacetamide (TAA)-induced model. Liver tissue was processed for global gene expression, histopathological and collagen evaluations; as well as immunohistochemical and oxidative stress analysis. Gene Ontology and functional analysis showed the upregulation of extracellular matrix deposition genes, such as collagen type I alpha 1 and 2 (Col1α1 and Col1α2) and tissue inhibitor of metalloproteinase 1 and 2 genes (Timp1 and Timp2)...
November 5, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28937994/modeling-of-annexin-a2-membrane-interactions-by-molecular-dynamics-simulations
#17
Davit Hakobyan, Volker Gerke, Andreas Heuer
The annexins are a family of Ca2+-regulated phospholipid binding proteins that are involved in membrane domain organization and membrane trafficking. Although they are widely studied and crystal structures are available for several soluble annexins their mode of membrane association has never been studied at the molecular level. Here we obtained molecular information on the annexin-membrane interaction that could serve as paradigm for the peripheral membrane association of cytosolic proteins by Molecular Dynamics simulations...
2017: PloS One
https://www.readbyqxmd.com/read/28893180/annexin-a2-anxa2-interacts-with-nonstructural-protein-1-and-promotes-the-replication-of-highly-pathogenic-h5n1-avian-influenza-virus
#18
Yong Ma, Jiashan Sun, Linlin Gu, Hongmei Bao, Yuhui Zhao, Lin Shi, Wei Yao, Guobin Tian, Xiurong Wang, Hualan Chen
BACKGROUND: Non-structural protein 1 (NS1) is a multifunctional protein and a crucial regulatory factor in the replication and pathogenesis of avian influenza virus (AIV). Studies have shown that NS1 can interact with a variety of host proteins to modulate the viral life cycle. We previously generated a monoclonal antibody against NS1 protein; In the current research study, using this antibody, we immunoprecipitated host proteins that interact with NS1 to better understand the roles played by NS1 in communications between virus and host...
September 11, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28867585/protein-phosphorylation-and-its-role-in-the-regulation-of-annexin-a2-function
#19
REVIEW
Ann Kari Grindheim, Jaakko Saraste, Anni Vedeler
BACKGROUND: Annexin A2 (AnxA2) is a multifunctional protein involved in endocytosis, exocytosis, membrane domain organisation, actin remodelling, signal transduction, protein assembly, transcription and mRNA transport, as well as DNA replication and repair. SCOPE OF REVIEW: The current knowledge of the role of phosphorylation in the functional regulation of AnxA2 is reviewed. To provide a more comprehensive treatment of this topic, we also address in depth the phosphorylation process in general and discuss its possible conformational effects...
November 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28864021/the-core-transcriptome-of-mammalian-placentas-and-the-divergence-of-expression-with-placental-shape
#20
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
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