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annexin a1

Yung-Che Chen, Meng-Chih Lin, Chih-Hung Lee, Shih-Feng Liu, Chin-Chou Wang, Wen-Feng Fang, Tung-Ying Chao, Chao-Chien Wu, Yu-Feng Wei, Huang-Chih Chang, Chia-Cheng Tsen, Hung-Chen Chen
BACKGROUND: Controversy exists in previous studies on macrophage M1/M2 polarization in chronic obstructive pulmonary disease (COPD). We hypothesized that formyl peptide receptor (FPR), a marker of efferocytosis and mediator of M1/M2 polarization, may be involved in the development of COPD. METHODS: We examined FPR 1/2/3 expressions of blood M1/M2a monocyte, neutrophil, natural killer (NK) cell, NK T cell, T helper (Th) cell, and T cytotoxic (Tc) cell by flowcytometry method in 40 patients with cigarette smoking-related COPD and 16 healthy non-smokers...
March 15, 2018: Journal of Translational Medicine
Hefin I Rhys, Francesco Dell'Accio, Costantino Pitzalis, Adrian Moore, Lucy V Norling, Mauro Perretti
Microvesicles (MVs) are emerging as a novel means to enact cell-to-cell communication in inflammation. Here, we aimed to ascertain the ability of neutrophil-derived MVs to modulate target cell behaviour, the focus being the macrophage. MVs were generated in response to tumour necrosis factor-α, from healthy control neutrophils or those from rheumatoid arthritis patients. MVs were used to stimulate human monocyte-derived macrophages in vitro, or administered intra-articularly in the K/BxN mouse model of arthritis...
February 7, 2018: EBioMedicine
Tianwen Lai, Yanyu Li, Zongjiong Mai, Xiaoxia Wen, Yingying Lv, Zhanqing Xie, Quanchao Lv, Min Chen, Dong Wu, Bin Wu
Purpose: Fibrosis in peripheral airways is responsible for airflow limitation in chronic obstructive pulmonary disease (COPD). Annexin A1 modulates several key biological events during inflammation. However, little is known about its role in airway fibrosis in COPD. We investigated whether levels of Annexin A1 were upregulated in patients with COPD, and whether it promoted airway fibrosis. Methods: We quantified serum Annexin A1 levels in never-smokers (n=12), smokers without COPD (n=11), and smokers with COPD (n=22)...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Wen-I Liao, Shu-Yu Wu, Geng-Chin Wu, Hsin-Ping Pao, Shih-En Tang, Kun-Lun Huang, Shi-Jye Chu
The authors would like to make a correction to their published paper [1][...].
February 9, 2018: International Journal of Molecular Sciences
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
Mohamed Abd El-Salam, Jairo Kenupp Bastos, Jing Jing Han, Daniel Previdi, Eduardo B Coelho, Paulo M Donate, Michael F Romero, John Lieske
The plant metabolite 3,4,5-tri-O-galloylquinic acid methyl ester (TGAME, compound 6) was synthesized and its potential effect on calcium oxalate monohydrate (COM) crystal binding to the surface of Madin-Darby Canine Kidney Cells type I (MDCKI) and crystal growth in a Drosophila melanogaster Malpighian tubule (MT) model was investigated. Membrane, cytosolic and total Annexin A1 (AxA1), α-enolase and heat shock protein 90 (HSP90) amounts were examined by Western blot analysis after subcellular fractionation, then confirmed by immunofluorescence staining of cultured cells...
February 6, 2018: Journal of Medicinal Chemistry
Supawat Chatchen, Nutkridta Pongsakul, Chantragan Srisomsap, Wararat Chiangjong, Suradej Hongeng, Jisnuson Svasti, Somchai Chutipongtanate
BACKGROUND: Previous studies showed that ceftriaxone can cause acute kidney injury (AKI) in the pediatric population. This study proposed a cellular model of crystalline nephropathy in ceftriaxone-associated AKI and explored the related pathophysiology by using a proteomic approach. METHODS: Ceftriaxone was crystallized with calcium in artificial urine. Madin-Darby Canine Kidney (MDCK) cells, a model of distal renal tubular cell, were cultured in the absence (untreated control) or presence of ceftriaxone crystals for 48-h (n = 5 each)...
January 16, 2018: Nephron
Yanan Zhao, Yoji Nagasaki, Padmaja Paderu, Michele W Sugrue, Helen L Leather, John R Wingard, David S Perlin
One critical factor impeding successful management of invasive aspergillosis (IA) is the lack of reliable biomarkers to assess therapeutic response. We hypothesized that changes in certain host biomarkers reflect the nature of infection status and disease progression. Upon primary IA diagnosis, these disease status biomarkers can be monitored to track response to antifungal therapy and provide early markers that prognosticate likelihood of response. Herein, we analyzed serum levels of three prominent host disease status biomarkers C-reactive protein (CRP), haptoglobin (Hp), and annexin A1 (ANXA1) in IA patients during antifungal therapy...
January 22, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Li Liao, Wen-Jing Yan, Chun-Mei Tian, Mao-Yu Li, Yong-Quan Tian, Gu-Qing Zeng
Radiotherapy is the primary treatment for nasopharyngeal carcinoma while radioresistance can hinder efficient treatment. To explore the role of annexin A1 and its potential mechanisms in radioresistance of nasopharyngeal carcinoma, human nasopharyngeal carcinoma cell line CNE2-sh annexin A1 (knockdown of annexin A1) and the control cell line CNE2-pLKO.1 were constituted and CNE2-sh annexin A1 xenograft mouse model was generated. The effect of annexin A1 knockdown on the growth of xenograft tumor after irradiation and radiation-induced DNA damage and repair was analyzed...
January 1, 2018: Technology in Cancer Research & Treatment
Sun-Hye Lee, Pureun-Haneul Lee, Byeong-Gon Kim, Hyun-Jeong Seo, Ae-Rin Baek, Jong-Sook Park, June-Hyuk Lee, Sung-Woo Park, Do-Jin Kim, Choon-Sik Park, An-Soo Jang
BACKGROUND: Annexin-A1 (ANXA1) is a glucocorticoid-induced protein with multiple actions in the regulation of inflammatory cell activation. The anti-inflammatory protein ANXA1 and its N-formyl peptide receptor 2 (FPR2) have protective effects on organ fibrosis. However, the exact role of ANXA1 in asthma remains to be determined. The aim of this study was to identify the role of ANXA1 in bronchial asthma. METHODS: In mice sensitized and challenged with ovalbumin (OVA-OVA mice) and mice sensitized with saline and challenged with air (control mice), we investigated the potential links between ANXA1 levels and bronchial asthma using ELISA, immunoblotting, and immunohistochemical staining...
January 4, 2018: BMC Pulmonary Medicine
Javier Soria, Arantxa Acera, Jesús Merayo-LLoves, Juan A Durán, Nerea González, Sandra Rodriguez, Nikitas Bistolas, Soeren Schumacher, Frank F Bier, Harald Peter, Walter Stöcklein, Tatiana Suárez
We analyzed the tear film proteome of patients with dry eye (DE), meibomian gland dysfunction (MGD), and normal volunteers (CT). Tear samples were collected from 70 individuals. Of these, 37 samples were analyzed using spectral-counting-based LC-MS/MS label-free quantitation, and 33 samples were evaluated in the validation of candidate biomarkers employing customized antibody microarray assays. Comparative analysis of tear protein profiles revealed differences in the expression levels of 26 proteins, including protein S100A6, annexin A1, cystatin-S, thioredoxin, phospholipase A2, antileukoproteinase, and lactoperoxidase...
December 12, 2017: Scientific Reports
Numfa Fungbun, Doungrut Tungmahasuk, Ryota Terashima, Shiro Kurusu, Mitsumori Kawaminami
Gonadotropin-releasing hormone (GnRH) regulates gonadotropin secretion. We previously demonstrated that the expression of annexin A5 (ANXA5) is stimulated by GnRH in gonadotropes and has a significant role in gonadotropin secretion. It is therefore of interest to know whether other members of the ANXA family, which consists of twelve structurally related members, are also regulated by GnRH. Therefore, the expression of all annexins was examined in LβT2 gonadotrope cells. ANXA4, A5, A6, A7 and A11 were detected in LβT2 cells...
January 27, 2018: Journal of Veterinary Medical Science
Ying-Ming Wan, Jing Tian, Ling Qi, Li-Mei Liu, Ning Xu
Annexin A1 (ANXA1) acts either as a tumor suppressor or an oncogene in different tumor types. Several clinical studies revealed that the expression of ANXA1 is associated with the pathologic differentiation grade in oral squamous cell carcinoma (OSCC) patients. However, the direct function of ANXA1 in OSCC progression has remained to be fully clarified. The present study was designed to investigate the role of ANXA1 in OSCC cell proliferation and invasion in vitro . Furthermore, whether ANXA1 was involved in transforming growth factor β1 (TGFβ1)/epidermal growth factor (EGF)-induced epithelial-mesenchymal transition (EMT) in OSCC was explored...
November 2017: Experimental and Therapeutic Medicine
Cheng Xue Qin, Siobhan B Finlayson, Annas Ai-Sharea, Mitchel Tate, Miles J De Blasio, Minh Deo, Sarah Rosli, Darnel Prakoso, Colleen J Thomas, Helen Kiriazis, Eleanor Gould, Yuan H Yang, Eric F Morand, Mauro Perretti, Andrew J Murphy, Xiao-Jun Du, Xiao-Ming Gao, Rebecca H Ritchie
Endogenous anti-inflammatory annexin-A1 (ANX-A1) plays an important role in preserving left ventricular (LV) viability and function after ischaemic insults in vitro, but its long-term cardioprotective actions in vivo are largely unknown. We tested the hypothesis that ANX-A1-deficiency exaggerates inflammation, haematopoietic stem progenitor cell (HSPC) activity and LV remodelling in response to myocardial ischaemia in vivo. Adult ANX - A1-/- mice subjected to coronary artery occlusion exhibited increased infarct size and LV macrophage content after 24-48 h reperfusion compared with wildtype (WT) counterparts...
November 30, 2017: Scientific Reports
Marjut Niinivirta, Gunilla Enblad, Per-Henrik Edqvist, Fredrik Pontén, Anca Dragomir, Gustav J Ullenhag
Background and aims: There is no established predictive marker for the treatment of renal cancer. Metastatic renal cell carcinoma (mRCC) patients are often treated with sunitinib, a tyrosine kinase inhibitor. Sunitinibs anti-cancer effect is at least partly mediated through interfering with angiogenesis. Our aim with the current study was to assess annexin A1 (ANXA1), which stimulates angiogenesis, as a predictive marker for sunitinib therapy in mRCC patients. Since previous studies have indicated a predictive potential for cubilin, we also investigated the predictivity of ANXA1 combined with cubilin...
2017: Journal of Cancer
Cristina Bichels Hebeda, Isabel Daufenback Machado, Isadora Reif-Silva, Jusciele Brogin Moreli, Sonia Maria Oliani, Suchita Nadkarni, Mauro Perretti, Estela Bevilacqua, Sandra H P Farsky
Annexin A1 (AnxA1) is a glucocorticoid-regulated anti-inflammatory protein secreted by phagocytes and other specialised cells. In the endocrine system, AnxA1 controls secretion of steroid hormones and it is abundantly expressed in the testis, ovaries, placenta and seminal fluid, yet its potential modulation of fertility has not been described. Here we observed that AnxA1 knockout (KO) mice delivered a higher number of pups, with a higher percentage of female offsprings. This profile was not dependent on the male features, as sperm from KO male mice did not present functional alterations, and had an equal proportion of Y and X chromosomes, comparable to wild type (WT) male mice...
November 8, 2017: Journal of Cellular Physiology
Ahmed A Arzouni, Andreia Vargas-Seymour, Chloe L Rackham, Paramjeet Dhadda, Guo-Cai Huang, Pratik Choudhary, Nance Nardi, Aileen J F King, Peter M Jones
AIMS: The aims of the present study were (i) to determine whether the reported beneficial effects of mesenchymal stromal cells (MSCs) on mouse islet function extend to clinically relevant human tissues (islets and MSCs), enabling translation into improved protocols for clinical human islet transplantation; and (ii) to identify possible mechanisms through which human MSCs influence human islet function. MATERIALS AND METHODS: Human islets were co-cultured with human adipose tissue-derived MSCs (hASCs) or pre-treated with its products - extracellular matrix (ECM) and annexin A1 (ANXA1)...
December 1, 2017: Clinical Science (1979-)
Manal S Fawzy, Eman A Toraih, Afaf Ibrahiem, Hala Abdeldayem, Amany O Mohamed, Mohamed M Abdel-Daim
Previous reports have suggested the significant association of miRNAs aberrant expression with tumor initiation, progression and metastasis in cancer, including gastrointestinal (GI) cancers. The current preliminary study aimed to evaluate the relative expression levels of miR-196a2 and three of its selected apoptosis-related targets; ANXA1, DFFA and PDCD4 in a sample of GI cancer patients. Quantitative real-time PCR for miR-196a2 and its selected mRNA targets, as well as immunohistochemical assay for annexin A1 protein expression were detected in 58 tissues with different GI cancer samples...
2017: PloS One
Katherine R Martin, Magali Pederzoli-Ribeil, Emeline Pacreau, Sabrina S Burgener, Albert Dahdah, Céline Candalh, Evelyne Lauret, Marc Foretz, Luc Mouthon, Bruno Lucas, Nathalie Thieblemont, Charaf Benarafa, Pierre Launay, Véronique Witko-Sarsat
Proteinase 3 (PR3) is a myeloid serine protease expressed in neutrophils, monocytes, and macrophages. PR3 has a number of well-characterized proinflammatory functions, including cleaving and activating chemokines and controlling cell survival and proliferation. When presented on the surface of apoptotic neutrophils, PR3 can disrupt the normal anti-inflammatory reprogramming of macrophages following the phagocytosis of apoptotic cells. To better understand the function of PR3 in vivo, we generated a human PR3 transgenic mouse (hPR3Tg)...
December 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
Peter J Gardner, Samia Yazid, Joana Ribeiro, Robin R Ali, Andrew D Dick
PURPOSE: The purpose of this study was to examine the expression of the anti-inflammatory protein Annexin A1 (AnxA1) in mice and human retinae during uveitis and to determine whether local administration of human recombinant AnxA1 (hrAnxA1) can suppress uveitis in mice. METHODS: Retinal sections from mice (healthy normal and uveitis) and postmortem human (no history of eye disease (n = 5) and uveitis (n = 7)) were stained for AnxA1 expression and imaged by immunofluorescence microscopy...
September 2017: Translational Vision Science & Technology
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