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annexin A2

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https://www.readbyqxmd.com/read/29786451/annexin-a2-is-a-robo4-ligand-that-modulates-arf6-activation-associated-cerebral-trans-endothelial-permeability
#1
Wenlu Li, Zhigang Chen, Jing Yuan, Zhanyang Yu, Chongjie Cheng, Qiuchen Zhao, Lena Huang, Katherine A Hajjar, Zhong Chen, Eng H Lo, Haibin Dai, Xiaoying Wang
Blood-brain barrier (BBB) disruption in neurological disorders remains an intractable problem with limited therapeutic options. Here, we investigate whether the endothelial cell membrane protein annexin A2 (ANXA2) may play a role in reducing trans-endothelial permeability and maintaining cerebrovascular integrity after injury. Compared with wild-type mice, the expression of cerebral endothelial junctional proteins was reduced in E15.5 and adult ANXA2 knockout mice, along with increased leakage of small molecule tracers...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29757220/annexins-coordinators-of-cholesterol-homeostasis-in-endocytic-pathways
#2
REVIEW
Carles Rentero, Patricia Blanco-Muñoz, Elsa Meneses-Salas, Thomas Grewal, Carlos Enrich
The spatiotemporal regulation of calcium (Ca2+ ) storage in late endosomes (LE) and lysosomes (Lys) is increasingly recognized to influence a variety of membrane trafficking events, including endocytosis, exocytosis, and autophagy. Alterations in Ca2+ homeostasis within the LE/Lys compartment are implicated in human diseases, ranging from lysosomal storage diseases (LSDs) to neurodegeneration and cancer, and they correlate with changes in the membrane binding behaviour of Ca2+ -binding proteins. This also includes Annexins (AnxA), which is a family of Ca2+ -binding proteins participating in membrane traffic and tethering, microdomain organization, cytoskeleton interactions, Ca2+ signalling, and LE/Lys positioning...
May 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29694949/overexpression-of-annexin-a2-receptor-inhibits-neovascularization-via-the-promotion-of-kr%C3%A3-ppel-like-transcription-factor-2
#3
Ting Guo, Hongyuan Song, Zichang Zhao, Zhongtian Qi, Shihong Zhao
BACKGROUND/AIMS: Annexin A2 receptor (AX2R) can mediate annexin A2 signalling and induce apoptosis in a variety of cells, but its role in neovascularization (NV) remains unclear. Krüppel-like transcription factor 2 (KLF2) is known to be expressed in a range of cell types and to participate in a number of processes during development and disease, such as endothelial homeostasis, vasoregulation and vascular growth/remodelling. The aim of our study was to investigate the role of AX2R in NV and the plausible molecular mechanism...
April 24, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29643068/hydrogen-peroxide-is-a-neuronal-alarmin-that-triggers-specific-rnas-local-translation-of-annexin-a2-and-cytoskeletal-remodeling-in-schwann-cells
#4
Samuele Negro, Marco Stazi, Marta Marchioretto, Toma Tebaldi, Umberto Rodella, Elisa Duregotti, Volker Gerke, Alessandro Quattrone, Cesare Montecucco, Michela Rigoni, Gabriella Viero
Schwann cells are key players in neuro-regeneration: they sense alarm signals released by degenerating nerve terminals and differentiate toward a pro-regenerative phenotype, with phagocytosis of nerve debris and nerve guidance. At the murine neuromuscular junction, hydrogen peroxide (H2 O2 ) is a key signal of Schwann cells activation in response to a variety of nerve injuries. Here we report that Schwann cells exposed to low doses of H2 O2 rewire the expression of several RNAs at both transcriptional and translational levels...
April 11, 2018: RNA
https://www.readbyqxmd.com/read/29598816/annexin-a2-mediated-cancer-progression-and-therapeutic-resistance-in-nasopharyngeal-carcinoma
#5
REVIEW
Chang-Yu Chen, Yung-Song Lin, Chien-Ho Chen, Yin-Ju Chen
Nasopharyngeal carcinoma (NPC) is a head and neck cancer with poor clinical outcomes and insufficient treatments in Southeast Asian populations. Although concurrent chemoradiotherapy has improved recovery rates of patients, poor overall survival and low efficacy are still critical problems. To improve the therapeutic efficacy, we focused on a tumor-associated protein called Annexin A2 (ANXA2). This review summarizes the mechanisms by which ANXA2 promotes cancer progression (e.g., proliferation, migration, the epithelial-mesenchymal transition, invasion, and cancer stem cell formation) and therapeutic resistance (e...
March 29, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29568351/targeting-of-embryonic-annexin-a2-expressed-on-ovarian-and-breast-cancer-by-the-novel-monoclonal-antibody-2448
#6
Simeon Cua, Heng Liang Tan, Wey Jia Fong, Angela Chin, Ally Lau, Vanessa Ding, Zhiwei Song, Yuansheng Yang, Andre Choo
Monoclonal antibodies (mAbs) play an increasingly important role in cancer therapy. To address the wide heterogeneity of the disease, the identification of novel antigen targets and the development of mAbs against them are needed. Our lab previously generated a panel of mAbs against human embryonic stem cells (hESC) using a whole cell immunization approach in mice. These mAbs can potentially target oncofetal antigens and be repurposed for antibody or antibody drug conjugate (ADC) therapy. From this panel, the novel IgG1 2448 was found to bind surface antigens on hESC and multiple cancer cell lines...
March 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29567212/molecular-dissection-of-the-membrane-aggregation-mechanisms-induced-by-monomeric-annexin-a2
#7
Juan C López-Rodríguez, Francisco J Martínez-Carmona, J Ignacio Rodríguez-Crespo, M Antonia Lizarbe, Javier Turnay
Annexins are a multigene family of proteins involved in aggregation and fusion processes of biological membranes. One of its best-known members is annexin A2 (or p36), capable of binding to acidic phospholipids in a calcium-dependent manner, as occurs with other members of the same family. In its heterotetrameric form, especially with protein S100A10 (p11), annexin A2 has been involved as a determinant factor in innumerable biological processes like tumor development or anticoagulation. However, the subcellular coexistence of different pools of the protein, in which the monomeric form of annexin A2 is growing in functional relevance, is to date poorly described...
March 19, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29556045/stomatin-like-protein-2-regulates-survivin-expression-in-non-small-cell-lung-cancer-cells-through-%C3%AE-catenin-signaling-pathway
#8
Cheng-Ta Yang, Jhy-Ming Li, Li-Fu Li, Yu-Shien Ko, Jeng-Ting Chen
The overexpression of stomatin-like protein-2 (SLP-2) is commonly observed in non-small cell lung cancer (NSCLC) cells. In the present study, we transfected a number of NSCLC cells with an SLP-2 shRNA-expressing vector (AdSLP2i) and examined its possible effects on cell growth and apoptosis. We found that suppression of SLP-2 expression inhibited cell growth, and that the apoptosis induced by SLP-2 suppression was correlated with decreased survivin protein expression. Moreover, the reduced survivin expression was found to be associated with reduced β-catenin nuclear localization and appeared not to be modulated through the AKT signaling pathway...
March 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29545968/calcium-channel-%C3%AE-2%C3%AE-1-subunit-as-a-novel-biomarker-for-diagnosis-of-hepatocellular-carcinoma
#9
Sana Amhimmid Badr, Maryan Waheeb Fahmi, Manal Mahmoud Nomir, Mamdouh Mohammad El-Shishtawy
Objective: Hepatocellular carcinoma (HCC) is the fifth most common malignancy worldwide. The identification of new simple, inexpensive and highly accurate markers for HCC diagnosis and screening is needed. This case-control study evaluates the role of annexin A2 and voltage-gated calcium channels α2δ1 subunit as serum biomarkers for HCC diagnosis. Methods: The study comprised three groups: group 1, 50 patients with an initial diagnosis of HCC associated with chronic hepatitis C virus infection; group 2, 25 patients diagnosed with chronic hepatitis C virus infection and cirrhosis without any evidence of HCC; and group 3, 15 healthy controls...
February 2018: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/29508276/identification-of-natural-compounds-targeting-annexin-a2-with-an-anti-cancer-effect
#10
Yu-Shi Wang, He Li, Yang Li, Hongyan Zhu, Ying-Hua Jin
Annexin A2, a multifunctional tumor associated protein, promotes nuclear factor-kappa B (NF-κB) activation by interacting with NF-κB p50 subunit and facilitating its nuclear translocation. Here we demonstrated that two ginsenosides Rg5 (G-Rg5) and Rk1 (G-Rk1), with similar structure, directly bound to Annexin A2 by molecular docking and cellular thermal shift assay. Both Rg5 and Rk1 inhibited the interaction between Annexin A2 and NF-κB p50 subunit, their translocation to nuclear and NF-κB activation. Inhibition of NF-κB by these two ginsenosides decreased the expression of inhibitor of apoptosis proteins (IAPs), leading to caspase activation and apoptosis...
March 5, 2018: Protein & Cell
https://www.readbyqxmd.com/read/29491166/annexin-a2-mediates-the-localization-of-measles-virus-matrix-protein-at-the-plasma-membrane
#11
Ritsuko Koga, Marie Kubota, Takao Hashiguchi, Yusuke Yanagi, Shinji Ohno
Annexins are a family of structurally related proteins that bind negatively charged membrane phospholipids in a Ca2+ -dependent manner. Annexin A2 (AnxA2), a member of the family, has been implicated in a variety of cellular functions including the organization of membrane domains, vesicular trafficking and cell-cell adhesion. AnxA2 generally forms the heterotetrameric complex with a small Ca2+ -binding protein S100A10. Measles virus (MV), a member of the family Paramyxoviridae , is an enveloped virus with a nonsegmented negative strand RNA genome...
February 28, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29471108/redox-stress-in-marfan-syndrome-dissecting-the-role-of-the-nadph-oxidase-nox4-in-aortic-aneurysm
#12
Francesc Jiménez-Altayó, Thayna Meirelles, Eva Crosas-Molist, M Alba Sorolla, Darya Gorbenko Del Blanco, Judit López-Luque, Aleksandra Mas-Stachurska, Ana-Maria Siegert, Fabio Bonorino, Laura Barberà, Carolina García, Enric Condom, Marta Sitges, Fernando Rodríguez-Pascual, Francisco Laurindo, Katrin Schröder, Joaquim Ros, Isabel Fabregat, Gustavo Egea
Marfan syndrome (MFS) is characterized by the formation of ascending aortic aneurysms resulting from altered assembly of extracellular matrix fibrillin-containing microfibrils and dysfunction of TGF-β signaling. Here we identify the molecular targets of redox stress in aortic aneurysms from MFS patients, and investigate the role of NOX4, whose expression is strongly induced by TGF-β, in aneurysm formation and progression in a murine model of MFS. Working models included aortae and cultured vascular smooth muscle cells (VSMC) from MFS patients, and a NOX4-deficient Marfan mouse model (Fbn1C1039G/+ -Nox4-/- )...
April 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29422116/microrna-139-3p-suppresses-tumor-growth-and-metastasis-in-hepatocellular-carcinoma-by-repressing-anxa2r
#13
Zeng Cheng Zou, Min Dai, Zeng Yin Huang, Yi Lu, He Ping Xie, Yi Fang Li, Yue Li, Ying Tan, Feng Lin Wang
The direct roles of miR-139-3p on hepatocellular carcinoma (HCC) cell growth and metastasis remain poorly understood. We attempt to demonstrate the regulatory role of miR139-3p in hepatocellular carcinoma (HCC) progression and its mechanisms behind. Here, we show that miR-139-3p expression was significantly reduced in the HCC tissues compared to para-tumor tissues. Exogenous overexpression of miR-139-3p inhibited the migration and invasion of HCC cells, whereas down-regulation of miR-139-3p was able to induced HCC HepG2 and SNU-449 cell lines migration and invasion...
February 8, 2018: Oncology Research
https://www.readbyqxmd.com/read/29416802/prognostic-impact-of-anxa1-and-anxa2-gene-expression-in-triple-negative-breast-cancer
#14
Lee D Gibbs, Jamboor K Vishwanatha
Objective: Previous studies have shown Annexin A1 (AnxA1) and Annexin A2 (AnxA2) association with the aggressive behavior of Triple Negative Breast Cancer (TNBC). Our aim was to determine the correlation of AnxA1 and AnxA2 with poor prognosis of TNBC patients. Methods: We analyzed the gene expression of the human annexin family from microarray datasets and correlated with clinical outcomes to determine their ability to predict prognosis. Results: Within a mean follow-up time of 57...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29408587/fetal-regional-brain-protein-signature-in-fasd-rat-model
#15
Katie L Davis-Anderson, Hendrik Wesseling, Lara M Siebert, Emilie R Lunde-Young, Vishal D Naik, Hanno Steen, Jayanth Ramadoss
Fetal alcohol spectrum disorders (FASD) describe neurodevelopmental deficits in children exposed to alcohol in utero. We hypothesized that gestational alcohol significantly alters fetal brain regional protein signature. Pregnant rats were binge-treated with alcohol or pair-fed and nutritionally-controlled. Mass spectrometry identified 1806, 2077, and 1456 quantifiable proteins in the fetal hippocampus, cortex, and cerebellum, respectively. A stronger effect of alcohol exposure on the hippocampal proteome was noted: over 600 hippocampal proteins were significantly (P < ...
March 2018: Reproductive Toxicology
https://www.readbyqxmd.com/read/29365774/identifying-ldl-c-associated-variants-in-the-annexin-a2-anxa2-gene
#16
Roaa Hani Fairoozy, Jon White, Jackie Cooper, Lasse Folkersen, Claudia Giambartolomei, Anastasia Kalea, Thomas Grewal, Steve Humphries
No abstract text is available yet for this article.
August 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29342010/the-ever-expanding-saga-of-the-proprotein-convertases-and-their-roles-in-body-homeostasis-emphasis-on-novel-proprotein-convertase-subtilisin-kexin-number-9-functions-and-regulation
#17
Nabil G Seidah, Michel Chrétien, Majambu Mbikay
PURPOSE OF REVIEW: The nine members of the proprotein convertase family play major physiological roles during development and in the adult, and their dysregulation leads to various diseases. The primary objective of this article is to review recent findings on the clinical importance of some of these convertases concentrating mostly on PCSK9, the ninth member of the convertase family. This includes the transcriptional and translational regulation of PCSK9, its ability to enhance the degradation of LDL receptor (LDLR), and the implication of PCSK9 in inflammation and sepsis...
January 15, 2018: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/29332450/identification-and-comparison-of-differentiation-related-proteins-in-hepatocellular-carcinoma-tissues-by-proteomics
#18
Sheng Zhao, Gang Su, Wenke Yang, Ping Yue, Bing Bai, Yanyan Lin, Jinduo Zhang, Yongjiang Ba, Zhiwen Luo, Xiaoming Liu, Lili Zhao, Yi Xie, Yaowei Xu, Shuo Li, Wenbo Meng, Xiaodong Xie, Xun Li
Histological differentiation is a major pathological criterion indicating the risk of tumor invasion and metastasis in patients with hepatocellular carcinoma. The degree of tumor differentiation is controlled by a complex interacting network of associated proteins. The principal aim of the present study is to identify the possible differentiation-related proteins which may be used for early diagnosis and more effective therapies. We compared poorly differentiated and well-differentiated hepatocellular carcinoma tissues by using 2-dimensional gel electrophoresis and matrix-assisted laser desorption ionization time-of-flight mass spectrometry...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29328466/knockdown-of-immature-colon-carcinoma-transcript-1-induces-suppression-of-proliferation-s-phase-arrest-and-apoptosis-in-leukemia-cells
#19
Guang-Yao Li, Ji-Zhu Liu, Li Zhang, Guo-Zhen Liu, Shuang-Jing Li, Tai-Wu Xiao, Jing-Xia Wang, Le-Xin Wang, Ming Hou
Immature colon carcinoma transcript 1 (ICT1), a human mitochondrial translation release factor, is a ribosome-dependent codon-independent peptidyl-tRNA hydrolase. ICT1-deficiency has been recognized as a cell growth inhibitor of hepatoblastoma and glioblastoma multiforme. To explore the role of ICT1 in human leukemia, 2 short hairpin RNAs (shRNAs) targeting ICT1 sequences were designed in leukemia U937 cells. The successful infection of ICT1 in the U937 cells was observed under a fluorescence microscope and further quantified by western blotting and quantitative real-time PCR (qRT-PCR) analysis...
March 2018: Oncology Reports
https://www.readbyqxmd.com/read/29326439/lung-fibroblasts-promote-metastatic-colonization-through-upregulation-of-stearoyl-coa-desaturase-1-in-tumor-cells
#20
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...
March 2018: Oncogene
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