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AnxA1

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https://www.readbyqxmd.com/read/28216224/targeted-proteomics-driven-verification-of-biomarker-candidates-associated-with-breast-cancer-aggressiveness
#1
Iva Procházková, Juraj Lenčo, Alena Fučíková, Jiří Dresler, Lenka Čápková, Roman Hrstka, Rudolf Nenutil, Pavel Bouchal
Breast cancer is the most common and molecularly relatively well characterized malignant disease in women, however, its progression to metastatic cancer remains lethal for 78% of patients 5years after diagnosis. Novel markers could identify the high risk patients and their verification using quantitative methods is essential to overcome genetic, inter-tumor and intra-tumor variability and translate novel findings into cancer diagnosis and treatment. We recently identified 13 proteins associated with estrogen receptor, tumor grade and lymph node status, the key factors of breast cancer aggressiveness, using untargeted proteomics...
February 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28143660/proteomics-based-analysis-of-lung-injury-induced-proteins-in-a-mouse-model-of-common-bile-duct-ligation
#2
Tomohisa Sakaue, Fumiaki Shikata, Kaho Utsunomiya, Shunya Fukae, Mie Kurata, Hirotomo Nakaoka, Mikio Okazaki, Yujiro Kawanishi, Ai Kojima, Shigeki Higashiyama, Hironori Izutani
BACKGROUND: Lung injury is a life-threatening complication in patients with liver dysfunction. We recently provided an experimental lung injury model in mouse with common bile duct ligation. In this study, we aimed to characterize the pathologic and biochemical features of lung tissues in common bile duct ligation mice using a proteomic approach. METHODS: Common bile ducts of BALB/c mice, 8 weeks of age, were ligated operatively. CD31-expressing pulmonary cells were sorted with immunomagnetic microbeads, and protein profiles were examined by 2-dimensional gel electrophoresis...
January 28, 2017: Surgery
https://www.readbyqxmd.com/read/28101240/downregulation-of-annexin-a1-is-correlated-with-radioresistance-in-nasopharyngeal-carcinoma
#3
Lifang Huang, Li Liao, Yanping Wan, Ailan Cheng, Meixiang Li, Sihan Chen, Maoyu Li, Xing Tan, Guqing Zeng
Radiotherapy is the primary treatment for nasopharyngeal carcinoma (NPC), but radioresistance often remains an obstacle to successful treatment. In our previous study, it was demonstrated that Annexin A1 (ANXA1) was involved in the p53-mediated radioresponse in NPC cells, which suggested that it may be associated with radioresistance in NPC; however, the role of ANXA1 in NPC radioresistance is unknown. In the present study, CNE2 cells were stably transfected with pLKO.1-ANXA1-small hairpin (sh)RNAs to investigate the effects of ANXA1 on the radiosensitivity of NPC...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28062503/protective-aptitude-of-annexin-a1-in-arterial-neointima-formation-in-atherosclerosis-prone-mice
#4
Renske J de Jong, Nicole Paulin, Patricia Lemnitzer, Joana R Viola, Carla Winter, Bartolo Ferraro, Jochen Grommes, Christian Weber, Chris Reutelingsperger, Maik Drechsler, Oliver Soehnlein
OBJECTIVE: Restenosis as a consequence of arterial injury is aggravated by inflammatory pathways. Here, we investigate the role of the proresolving protein annexin A1 (AnxA1) in healing after wire injury. APPROACH AND RESULTS: Apoe(-/-) and Apoe(-/-)Anxa1(-/-) mice were subjected to wire injury while fed a high-cholesterol diet. Subsequently, localization of AnxA1 and AnxA1 plasma levels were examined. AnxA1 was found to localize within endothelial cells and macrophages in the neointima...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28058586/key-genes-in-stomach-adenocarcinoma-identified-via-network-analysis-of-rna-seq-data
#5
Li Shen, Lizhi Zhao, Jiquan Tang, Zhiwei Wang, Weisong Bai, Feng Zhang, Shouli Wang, Weihua Li
RNA-seq data of stomach adenocarcinoma (STAD) were analyzed to identify critical genes in STAD. Meanwhile, relevant small molecule drugs, transcription factors (TFs) and microRNAs (miRNAs) were also investigated. Gene expression data of STAD were downloaded from The Cancer Genome Atlas (TCGA). Differential analysis was performed with package edgeR. Relationships with correlation coefficient > 0.6 were retained in the gene co-expression network. Functional enrichment analysis was performed for the genes in the network with DAVID and KOBASS 2...
January 5, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28035369/effect-of-annexin-a1-gene-on-the-proliferation-and-invasion-of-esophageal-squamous-cell-carcinoma-cells-and-its-regulatory-mechanisms
#6
Gaohua Han, Kaijin Lu, Junxing Huang, Jun Ye, Shengbin Dai, Yunyao Ye, Lixin Zhang
The aim of this study was to examine the effect of Annexin A1 (ANXA1) on the proliferation, migration and invasion of esophageal squamous cell carcinoma (ESCC) cells and its possible mechanisms of action. After constructing the ANXA1 overexpression plasmid, we transfected this plasmid and/or microRNA (miRNA)‑196a mimic into ESCC cells (Eca109 cell line). Methyl thiazolyl tetrazolium (MTT) assay and Transwell chamber assay were performed to determine cell proliferation, migration and invasion, respectively...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27995621/annexin-a1-promotes-timely-resolution-of-inflammation-in-murine-gout
#7
Izabela Galvão, Juliana P Vago, Livia C Barroso, Luciana P Tavares, Celso M Queiroz-Junior, Vivian V Costa, Fernanda S Carneiro, Tatiana P Ferreira, Patricia M R Silva, Flávio A Amaral, Lirlândia P Sousa, Mauro M Teixeira
Gout is a self-limited inflammatory disease caused by deposition of monosodium urate (MSU) crystals in the joints. Resolution of inflammation is an active process leading to restoration of tissue homeostasis. Here, we studied the role of Annexin A1 (AnxA1), a glucocorticoid-regulated protein that has anti-inflammatory and pro-resolving actions, in resolution of acute gouty inflammation. Injection of MSU crystals in the knee joint of mice induced inflammation that was associated with expression of AnxA1 during the resolving phase of inflammation...
December 19, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27956131/annexin-a2-is-involved-in-ca-2-dependent-plasma-membrane-repair-in-primary-human-endothelial-cells
#8
Sophia Nina Koerdt, Volker Gerke
Many cells in an organism are exposed to constant and acute mechanical stress that can induce plasma membrane injuries. These plasma membrane wounds have to be resealed rapidly to guarantee cell survival. Plasma membrane resealing in response to mechanical strain has been studied in some detail in muscle, where it is required for efficient recovery after insult. However, less is known about the capacity of other cell types and tissues to perform membrane repair and the underlying molecular mechanisms. Here we show that vascular endothelial cells, which are subject to profound mechanical burden, can reseal plasma membrane holes inflicted by laser ablation...
December 9, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27941907/identification-of-specific-biomarkers-for-gastric-adenocarcinoma-by-itraq-proteomic-approach
#9
Xiaoxiao Wang, Qiaoming Zhi, Songbai Liu, Sheng-Li Xue, Congcong Shen, Yangxin Li, Chaofan Wu, Zaixiang Tang, Weichang Chen, Jenny Lee Song, Meiyu Bao, Yao-Hua Song, Jin Zhou
The aim of this study was to identify biomarkers for gastric cancer (GC) by iTRAQ. Using proteins extracted from a panel of 4 pairs of gastric adenocarcinoma samples (stage III-IV, Her-2 negative), we identified 10 up regulated and 9 down regulated proteins in all four pairs of GC samples compared to adjacent normal gastric tissue. The up regulated proteins are mainly involved in cell motility, while the down regulated proteins are mitochondrial enzymes involved in energy metabolism. The expression of three up regulated proteins (ANXA1, NNMT, fibulin-5) and one of the down regulated proteins (UQCRC1) was validated by Western Blot in 97 GC samples...
December 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27887959/decreased-plasma-concentrations-of-brain-derived-neurotrophic-factor-in-preeclampsia
#10
Luiza Oliveira Perucci, Érica Leandro Marciano Vieira, Antônio Lúcio Teixeira, Karina Braga Gomes, Luci Maria Dusse, Lirlândia Pires Sousa
BACKGROUND: Preeclampsia (PE) is a disease characterized by excessive maternal inflammatory response. Early studies suggested that brain-derived neurotrophic factor (BDNF) modulates inflammation. The main objective of this study was to investigate BDNF plasma concentrations in PE women and to compare with BDNF concentrations from normotensive pregnant women. We also investigated the association among the plasma concentrations of BDNF and inflammatory mediators, and maternal clinical features...
January 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27860536/the-advantageous-role-of-annexin-a1-in-cardiovascular-disease
#11
Renske Johanna de Jong, Giovanna Leoni, Maik Drechsler, Oliver Soehnlein
The inflammatory response protects the human body against infection and injury. However, uncontrolled and unresolved inflammation can lead to tissue damage and chronic inflammatory diseases. Therefore, active resolution of inflammation is essential to restore tissue homeostasis. This review focuses on the pro-resolving molecule annexin A1 (ANXA1) and its derived peptides. Mechanisms instructed by ANXA1 are multidisciplinary and affect leukocytes as well as endothelial cells and tissue resident cells like macrophages and mast cells...
November 18, 2016: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27834582/hypoxia-regulates-anxa1-expression-to-support-prostate-cancer-cell-invasion-and-aggressiveness
#12
Valentina Bizzarro, Raffaella Belvedere, Vincenzo Migliaro, Elena Romano, Luca Parente, Antonello Petrella
Annexin A1 (ANXA1) is a Ca(2+)-binding protein overexpressed in the invasive stages of prostate cancer (PCa) development; however, its role in this tumor metastatization is largely unknown. Moreover, hypoxic conditions in solid tumors have been related to poor prognosis in PCa patients. We have previously demonstrated that ANXA1 is implicated in the acquisition of chemo-resistant features in DU145 PCa cells conferring them a mesenchymal/metastatic phenotype. In this study, we have investigated the mechanisms by which ANXA1 regulates metastatic behavior in LNCaP, DU145 and PC3 cells exposed to hypoxia...
November 11, 2016: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27833268/interaction-between-anxa1-and-gata-3-in-immunosuppression-of-cd4-t-cells
#13
Peng Huang, Yuxiang Zhou, Zan Liu, Pihong Zhang
Decreased Th1/Th2 ratio is one of the major characteristics of immunosuppression in sepsis. Both membrane adhesive protein Annexin-A1 (ANXA1) and transcription factor GATA-3 have been reported to play important roles in T cell differentiation. However, the relationship between ANXA1 and GATA-3 in Th1/Th2 shift is unknown. Our study investigated the interaction effects of ANXA1 and GATA-3 to influence T cell differentiation in CD4(+) T cells. We found that GATA-3 and ANXA1 were coexpressed on Th0/Th1/Th2 cytoplasm and nuclear...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27802331/inflammation-in-sickle-cell-disease-differential-and-down-expressed-plasma-levels-of-annexin-a1-protein
#14
Lidiane S Torres, Jéssika V Okumura, Danilo G H Silva, Kallyne K O Mimura, Édis Belini-Júnior, Renan G Oliveira, Clarisse L C Lobo, Sonia M Oliani, Claudia R Bonini-Domingos
Sickle cell disease (SCD) is an inherited hemolytic anemia whose pathophysiology is driven by polymerization of the hemoglobin S (Hb S), leading to hemolysis and vaso-occlusive events. Inflammation is a fundamental component in these processes and a continuous inflammatory stimulus can lead to tissue damages. Thus, pro-resolving pathways emerge in order to restore the homeostasis. For example there is the annexin A1 (ANXA1), an endogenous anti-inflammatory protein involved in reducing neutrophil-endothelial interactions, accelerating neutrophil apoptosis and stimulating macrophage efferocytosis...
2016: PloS One
https://www.readbyqxmd.com/read/27782092/annexin-1-mediates-microglial-activation-and-migration-via-the-ck2-pathway-during-oxygen-glucose-deprivation-reperfusion
#15
Shuangxi Liu, Yan Gao, Xiaoli Yu, Baoming Zhao, Lu Liu, Yin Zhao, Zhenzhao Luo, Jing Shi
Annexin-1 (ANXA1) has shown neuroprotective effects and microglia play significant roles during central nervous system injury, yet the underlying mechanisms remain unclear. This study sought to determine whether ANXA1 regulates microglial response to oxygen-glucose deprivation/reperfusion (OGD/R) treatment and to clarify the downstream molecular mechanism. In rat hippocampal slices, OGD/R treatment enhanced the ANXA1 expression in neuron, the formyl peptide receptor (FPRs) expression in microglia, and the microglial activation in the CA1 region (cornu ammonis 1)...
October 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27633771/annexin-a1-restores-a%C3%AE-1-42-induced-blood-brain-barrier-disruption-through-the-inhibition-of-rhoa-rock-signaling-pathway
#16
Jong-Chan Park, Sung Hoon Baik, Sun-Ho Han, Hyun Jin Cho, Hyunjung Choi, Haeng Jun Kim, Heesun Choi, Wonik Lee, Dong Kyu Kim, Inhee Mook-Jung
The blood-brain barrier (BBB) is composed of brain capillary endothelial cells and has an important role in maintaining homeostasis of the brain separating the blood from the parenchyma of the central nervous system (CNS). It is widely known that disruption of the BBB occurs in various neurodegenerative diseases, including Alzheimer's disease (AD). Annexin A1 (ANXA1), an anti-inflammatory messenger, is expressed in brain endothelial cells and regulates the BBB integrity. However, its role and mechanism for protecting BBB in AD have not been identified...
February 2017: Aging Cell
https://www.readbyqxmd.com/read/27612479/upregulation-of-annexin-a1-expression-by-butyrate-in-human-melanoma-cells-induces-invasion-by-inhibiting-e-cadherin-expression
#17
Jimin Shin, In-Sung Song, Jhang Ho Pak, Sung-Wuk Jang
Epithelial to mesenchymal transition (EMT) is a critical step in the metastasis of epithelial cancer cells. Butyrate, which is produced from dietary fiber by colonic bacterial fermentation, has been reported to influence EMT. However, some studies have reported that butyrate promotes EMT, while others have reported an inhibitory effect. To clarify these controversial results, it is necessary to elucidate the mechanism by which butyrate can influence EMT. In this study, we examined the potential role of annexin A1 (ANXA1), which was previously reported to promote EMT in breast cancer cells, as a mediator of EMT regulation by butyrate...
November 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27590054/the-anti-inflammatory-annexin-a1-induces-the-clearance-and-degradation-of-the-amyloid-%C3%AE-peptide
#18
Miriam Ries, Rodrigo Loiola, Urvi N Shah, Steve M Gentleman, Egle Solito, Magdalena Sastre
BACKGROUND: The toxicity of amyloid-β (Aβ) peptide present in the brain of Alzheimer's disease (AD) patients is thought to be mediated via the increased secretion of pro-inflammatory mediators, which can lead to neuronal dysfunction and cell death. In addition, we have previously shown that inflammation can affect Aβ generation. More recently, we have reported that in vitro administration of the anti-inflammatory mediator Annexin A1 (ANXA1) following an inflammatory challenge suppressed microglial activation and this effect was mediated through formyl peptide receptor-like 1 (FPRL1/FPR2) signalling...
2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27584794/nuclear-translocation-of-annexin-1-following-oxygen-glucose-deprivation-reperfusion-induces-apoptosis-by-regulating-bid-expression-via-p53-binding
#19
Xing Li, Yin Zhao, Qian Xia, Lu Zheng, Lu Liu, Baoming Zhao, Jing Shi
Previous data have suggested that the nuclear translocation of annexin 1 (ANXA1) is involved in neuronal apoptosis after ischemic stroke. As the mechanism and function of ANXA1 nuclear migration remain unclear, it is important to clarify how ANXA1 performs its role as an apoptosis 'regulator' in the nucleus. Here we report that importazole (IPZ), an importin β (Impβ)-specific inhibitor, decreased ANXA1 nuclear accumulation and reduced the rate of neuronal death induced by nuclear ANXA1 migration after oxygen-glucose deprivation-reoxygenation (OGD/R)...
2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27573346/proteomic-analysis-of-selective-cytotoxic-anticancer-properties-of-flavonoids-isolated-from-citrus%C3%A2-platymamma-on-a549-human-lung-cancer-cells
#20
Arulkumar Nagappan, Venu Venkatarame Gowda Saralamma, Gyeong Eun Hong, Ho Jeong Lee, Sung Chul Shin, Eun Hee Kim, Won Sup Lee, Gon Sup Kim
Citrus platymamma Hort. ex Tanaka (Byungkyul in Korean) has been used in Korean folk medicine for the treatment of inflammatory disorders and cancer. However, the molecular mechanism underlying the anticancer properties of flavonoids isolated from C. platymamma (FCP) remains to be elucidated. Therefore, the present study attempted to identify the key proteins, which may be important in the anticancer effects of FCP on A549 cells using a proteomic approach. FCP showed a potent cytotoxic effect on the A549 human lung cancer cells, however, it had no effect on WI‑38 human fetal lung fibroblasts at the same concentrations...
October 2016: Molecular Medicine Reports
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