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Wickstead ES, Solito E, McArthur S. Promiscuous Receptors and Neuroinflammation: The Formyl Peptide Class. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122009. [PMID: 36556373 PMCID: PMC9786789 DOI: 10.3390/life12122009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022]
Abstract
Formyl peptide receptors, abbreviated as FPRs in humans, are G-protein coupled receptors (GPCRs) mainly found in mammalian leukocytes. However, they are also expressed in cell types crucial for homeostatic brain regulation, including microglia and blood-brain barrier endothelial cells. Thus, the roles of these immune-associated receptors are extensive, from governing cellular adhesion and directed migration through chemotaxis, to granule release and superoxide formation, to phagocytosis and efferocytosis. In this review, we will describe the similarities and differences between the two principal pro-inflammatory and anti-inflammatory FPRs, FPR1 and FPR2, and the evidence for their importance in the development of neuroinflammatory disease, alongside their potential as therapeutic targets.
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Affiliation(s)
- Edward S. Wickstead
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: (E.S.W.); (S.M.)
| | - Egle Solito
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
- Department of Medicina Molecolare e Biotecnologie Mediche, University of Naples “Federico II”, 80131 Naples, Italy
| | - Simon McArthur
- Institute of Dentistry, Faculty of Medicine & Dentistry, Queen Mary University of London, Blizard Institute, 4, Newark Street, London E1 2AT, UK
- Correspondence: (E.S.W.); (S.M.)
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2
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Shipston MJ. Glucocorticoid action in the anterior pituitary gland: Insights from corticotroph physiology. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2022; 25:100358. [PMID: 36632471 PMCID: PMC9823093 DOI: 10.1016/j.coemr.2022.100358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The anterior pituitary is exposed to ultradian, circadian and stress-induced rhythms of circulating glucocorticoid hormones. Glucocorticoids feedback at the level of the pituitary corticotroph to control their own production through multiple mechanisms. This review highlights key insights from analysis of the dynamics of rapid and early glucocorticoid feedback that reveal both non-genomic and genomic mechanisms mediated by glucocorticoid receptors. Importantly, a common target is control of electrical excitability and calcium signalling although non-genomic effects may also involve control of hormone secretion distal to calcium signalling. Understanding the mechanisms and functional consequences of pulsatile glucocorticoid signalling in the anterior pituitary promises to elucidate the role of glucocorticoids in health and disease, as well as identifying potential diagnostic and therapeutic targets.
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3
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Yan Z, Cheng X, Wang T, Hong X, Shao G, Fu C. Therapeutic potential for targeting Annexin A1 in fibrotic diseases. Genes Dis 2022; 9:1493-1505. [PMID: 36157506 PMCID: PMC9485289 DOI: 10.1016/j.gendis.2022.05.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 05/30/2022] [Indexed: 11/23/2022] Open
Abstract
Annexin A1, a well-known endogenous anti-inflammatory mediator, plays a critical role in a variety of pathological processes. Fibrosis is described by a failure of tissue regeneration and contributes to the development of many diseases. Accumulating evidence supports that Annexin A1 participates in the progression of tissue fibrosis. However, the fundamental mechanisms by which Annexin A1 regulates fibrosis remain elusive, and even the functions of Annexin A1 in fibrotic diseases are still paradoxical. This review focuses on the roles of Annexin A1 in the development of fibrosis of lung, liver, heart, and other tissues, with emphasis on the therapy potential of Annexin A1 in fibrosis, and presents future research interests and directions in fibrotic diseases.
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4
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Hoyles L, Pontifex MG, Rodriguez-Ramiro I, Anis-Alavi MA, Jelane KS, Snelling T, Solito E, Fonseca S, Carvalho AL, Carding SR, Müller M, Glen RC, Vauzour D, McArthur S. Regulation of blood-brain barrier integrity by microbiome-associated methylamines and cognition by trimethylamine N-oxide. MICROBIOME 2021; 9:235. [PMID: 34836554 PMCID: PMC8626999 DOI: 10.1186/s40168-021-01181-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 10/18/2021] [Indexed: 05/09/2023]
Abstract
BACKGROUND Communication between the gut microbiota and the brain is primarily mediated via soluble microbe-derived metabolites, but the details of this pathway remain poorly defined. Methylamines produced by microbial metabolism of dietary choline and L-carnitine have received attention due to their proposed association with vascular disease, but their effects upon the cerebrovascular circulation have hitherto not been studied. RESULTS Here, we use an integrated in vitro/in vivo approach to show that physiologically relevant concentrations of the dietary methylamine trimethylamine N-oxide (TMAO) enhanced blood-brain barrier (BBB) integrity and protected it from inflammatory insult, acting through the tight junction regulator annexin A1. In contrast, the TMAO precursor trimethylamine (TMA) impaired BBB function and disrupted tight junction integrity. Moreover, we show that long-term exposure to TMAO protects murine cognitive function from inflammatory challenge, acting to limit astrocyte and microglial reactivity in a brain region-specific manner. CONCLUSION Our findings demonstrate the mechanisms through which microbiome-associated methylamines directly interact with the mammalian BBB, with consequences for cerebrovascular and cognitive function. Video abstract.
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Affiliation(s)
- Lesley Hoyles
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Clifton, Nottingham, UK.
| | | | - Ildefonso Rodriguez-Ramiro
- Norwich Medical School, University of East Anglia, Norwich, UK
- Metabolic Syndrome Group, Madrid Institute for Advanced Studies (IMDEA) in Food, E28049, Madrid, Spain
| | - M Areeb Anis-Alavi
- Institute of Dentistry, Faculty of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Khadija S Jelane
- Institute of Dentistry, Faculty of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Tom Snelling
- Faculty of Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Egle Solito
- William Harvey Research Institute, Faculty of Medicine & Dentistry, Queen Mary University of London, London, UK
- Dipartimento di Medicina molecolare e Biotecnologie mediche, Federico II University, Naples, Italy
| | - Sonia Fonseca
- The Gut Microbes and Health Research Programme, The Quadram Institute, Norwich Research Park, Norwich, UK
| | - Ana L Carvalho
- The Gut Microbes and Health Research Programme, The Quadram Institute, Norwich Research Park, Norwich, UK
| | - Simon R Carding
- Norwich Medical School, University of East Anglia, Norwich, UK
- The Gut Microbes and Health Research Programme, The Quadram Institute, Norwich Research Park, Norwich, UK
| | - Michael Müller
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Robert C Glen
- Faculty of Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - David Vauzour
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Simon McArthur
- Institute of Dentistry, Faculty of Medicine & Dentistry, Queen Mary University of London, London, UK.
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5
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Montana V, Flint D, Waagepetersen HS, Schousboe A, Parpura V. Two Metabolic Fuels, Glucose and Lactate, Differentially Modulate Exocytotic Glutamate Release from Cultured Astrocytes. Neurochem Res 2021; 46:2551-2579. [PMID: 34057673 PMCID: PMC9015689 DOI: 10.1007/s11064-021-03340-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/06/2021] [Accepted: 05/10/2021] [Indexed: 12/26/2022]
Abstract
Astrocytes have a prominent role in metabolic homeostasis of the brain and can signal to adjacent neurons by releasing glutamate via a process of regulated exocytosis. Astrocytes synthesize glutamate de novo owing to the pyruvate entry to the citric/tricarboxylic acid cycle via pyruvate carboxylase, an astrocyte specific enzyme. Pyruvate can be sourced from two metabolic fuels, glucose and lactate. Thus, we investigated the role of these energy/carbon sources in exocytotic glutamate release from astrocytes. Purified astrocyte cultures were acutely incubated (1 h) in glucose and/or lactate-containing media. Astrocytes were mechanically stimulated, a procedure known to increase intracellular Ca2+ levels and cause exocytotic glutamate release, the dynamics of which were monitored using single cell fluorescence microscopy. Our data indicate that glucose, either taken-up from the extracellular space or mobilized from the intracellular glycogen storage, sustained glutamate release, while the availability of lactate significantly reduced the release of glutamate from astrocytes. Based on further pharmacological manipulation during imaging along with tandem mass spectrometry (proteomics) analysis, lactate alone, but not in the hybrid fuel, caused metabolic changes consistent with an increased synthesis of fatty acids. Proteomics analysis further unveiled complex changes in protein profiles, which were condition-dependent and generally included changes in levels of cytoskeletal proteins, proteins of secretory organelle/vesicle traffic and recycling at the plasma membrane in aglycemic, lactate or hybrid-fueled astrocytes. These findings support the notion that the availability of energy sources and metabolic milieu play a significant role in gliotransmission.
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Affiliation(s)
- Vedrana Montana
- Department of Neurobiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
| | - Daniel Flint
- Luxumbra Strategic Research, LLC, Arlington, VA, USA
| | - Helle S Waagepetersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arne Schousboe
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Vladimir Parpura
- Department of Neurobiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
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6
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Ries M, Watts H, Mota BC, Lopez MY, Donat CK, Baxan N, Pickering JA, Chau TW, Semmler A, Gurung B, Aleksynas R, Abelleira-Hervas L, Iqbal SJ, Romero-Molina C, Hernandez-Mir G, d’Amati A, Reutelingsperger C, Goldfinger MH, Gentleman SM, Van Leuven F, Solito E, Sastre M. Annexin A1 restores cerebrovascular integrity concomitant with reduced amyloid-β and tau pathology. Brain 2021; 144:1526-1541. [PMID: 34148071 PMCID: PMC8262982 DOI: 10.1093/brain/awab050] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 11/27/2020] [Accepted: 12/09/2020] [Indexed: 12/05/2022] Open
Abstract
Alzheimer's disease, characterized by brain deposits of amyloid-β plaques and neurofibrillary tangles, is also linked to neurovascular dysfunction and blood-brain barrier breakdown, affecting the passage of substances into and out of the brain. We hypothesized that treatment of neurovascular alterations could be beneficial in Alzheimer's disease. Annexin A1 (ANXA1) is a mediator of glucocorticoid anti-inflammatory action that can suppress microglial activation and reduce blood-brain barrier leakage. We have reported recently that treatment with recombinant human ANXA1 (hrANXA1) reduced amyloid-β levels by increased degradation in neuroblastoma cells and phagocytosis by microglia. Here, we show the beneficial effects of hrANXA1 in vivo by restoring efficient blood-brain barrier function and decreasing amyloid-β and tau pathology in 5xFAD mice and Tau-P301L mice. We demonstrate that young 5xFAD mice already suffer cerebrovascular damage, while acute pre-administration of hrANXA1 rescued the vascular defects. Interestingly, the ameliorated blood-brain barrier permeability in young 5xFAD mice by hrANXA1 correlated with reduced brain amyloid-β load, due to increased clearance and degradation of amyloid-β by insulin degrading enzyme (IDE). The systemic anti-inflammatory properties of hrANXA1 were also observed in 5xFAD mice, increasing IL-10 and reducing TNF-α expression. Additionally, the prolonged treatment with hrANXA1 reduced the memory deficits and increased synaptic density in young 5xFAD mice. Similarly, in Tau-P301L mice, acute hrANXA1 administration restored vascular architecture integrity, affecting the distribution of tight junctions, and reduced tau phosphorylation. The combined data support the hypothesis that blood-brain barrier breakdown early in Alzheimer's disease can be restored by hrANXA1 as a potential therapeutic approach.
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Affiliation(s)
- Miriam Ries
- Department of Brain Sciences, Imperial College London, London, UK
| | - Helena Watts
- Department of Brain Sciences, Imperial College London, London, UK
| | - Bibiana C Mota
- Department of Brain Sciences, Imperial College London, London, UK
| | | | | | - Nicoleta Baxan
- Biological Imaging Centre, Imperial College London, London, UK
| | | | - Tsz Wing Chau
- Department of Brain Sciences, Imperial College London, London, UK
| | - Annika Semmler
- Department of Brain Sciences, Imperial College London, London, UK
| | - Brinda Gurung
- Department of Brain Sciences, Imperial College London, London, UK
| | | | | | | | | | | | - Antonio d’Amati
- William Harvey Research Institute, Queen Mary University London SMD, London, UK
| | - Chris Reutelingsperger
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | | | | | - Fred Van Leuven
- Experimental Genetics Group-LEGTEGG, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Egle Solito
- William Harvey Research Institute, Queen Mary University London SMD, London, UK
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Universitá degli Studi di Napoli “Federico II”, Naples, Italy
| | - Magdalena Sastre
- Department of Brain Sciences, Imperial College London, London, UK
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7
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Weber CM, Clyne AM. Sex differences in the blood-brain barrier and neurodegenerative diseases. APL Bioeng 2021; 5:011509. [PMID: 33758788 PMCID: PMC7968933 DOI: 10.1063/5.0035610] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023] Open
Abstract
The number of people diagnosed with neurodegenerative diseases is on the rise. Many of these diseases, including Alzheimer's disease, Parkinson's disease, multiple sclerosis, and motor neuron disease, demonstrate clear sexual dimorphisms. While sex as a biological variable must now be included in animal studies, sex is rarely included in in vitro models of human neurodegenerative disease. In this Review, we describe these sex-related differences in neurodegenerative diseases and the blood-brain barrier (BBB), whose dysfunction is linked to neurodegenerative disease development and progression. We explain potential mechanisms by which sex and sex hormones affect BBB integrity. Finally, we summarize current in vitro BBB bioengineered models and highlight their potential to study sex differences in BBB integrity and neurodegenerative disease.
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Affiliation(s)
- Callie M Weber
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, USA
| | - Alisa Morss Clyne
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland 20742, USA
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8
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Shijo M, Hamasaki H, Honda H, Suzuki SO, Tachibana M, Ago T, Kitazono T, Iihara K, Iwaki T. Upregulation of Annexin A1 in Reactive Astrocytes and Its Subtle Induction in Microglia at the Boundaries of Human Brain Infarcts. J Neuropathol Exp Neurol 2020; 78:961-970. [PMID: 31504683 DOI: 10.1093/jnen/nlz079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Annexin A1 (ANXA1) has multiple functions, including anti-inflammatory effects, and is thought to be neuroprotective in various pathophysiologies of the central nervous system. The importance of ANXA1 in microglia and endothelial cells in ischemic environments in the brain has been recognized, but its detailed behavior in astrocytes in the ischemic brain remains unknown. Using immunohistochemistry, we therefore assessed the altered distribution of ANXA1 in human brain infarcts using 14 autopsied samples and 18 surgical samples. Elevated expression of ANXA1 was observed in reactive astrocytes in peri-infarct regions. ANXA1 accumulated at the cell periphery and in swollen cytoplasmic processes of reactive astrocytes, as well as at the rim of vacuoles at the boundary of necrosis, and colocalized with aberrantly distributed aquaporin 4 and excitatory amino acid transporter 1. Foamy macrophages in the necrotic core also expressed abundant ANXA1, whereas resident microglia at the boundary of necrosis rarely showed intrinsic expression of ANXA1. This characteristic distribution of ANXA1 in human brain infarcts may represent the good adaptability of reactive astrocytes to ischemic damage.
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Affiliation(s)
- Masahiro Shijo
- Department of Neuropathology.,Department of Medicine and Clinical Science
| | | | | | | | | | | | | | - Koji Iihara
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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9
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Vais H, Wang M, Mallilankaraman K, Payne R, McKennan C, Lock JT, Spruce LA, Fiest C, Chan MYL, Parker I, Seeholzer SH, Foskett JK, Mak DOD. ER-luminal [Ca 2+] regulation of InsP 3 receptor gating mediated by an ER-luminal peripheral Ca 2+-binding protein. eLife 2020; 9:e53531. [PMID: 32420875 PMCID: PMC7259957 DOI: 10.7554/elife.53531] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 05/15/2020] [Indexed: 12/17/2022] Open
Abstract
Modulating cytoplasmic Ca2+ concentration ([Ca2+]i) by endoplasmic reticulum (ER)-localized inositol 1,4,5-trisphosphate receptor (InsP3R) Ca2+-release channels is a universal signaling pathway that regulates numerous cell-physiological processes. Whereas much is known regarding regulation of InsP3R activity by cytoplasmic ligands and processes, its regulation by ER-luminal Ca2+ concentration ([Ca2+]ER) is poorly understood and controversial. We discovered that the InsP3R is regulated by a peripheral membrane-associated ER-luminal protein that strongly inhibits the channel in the presence of high, physiological [Ca2+]ER. The widely-expressed Ca2+-binding protein annexin A1 (ANXA1) is present in the nuclear envelope lumen and, through interaction with a luminal region of the channel, can modify high-[Ca2+]ER inhibition of InsP3R activity. Genetic knockdown of ANXA1 expression enhanced global and local elementary InsP3-mediated Ca2+ signaling events. Thus, [Ca2+]ER is a major regulator of InsP3R channel activity and InsP3R-mediated [Ca2+]i signaling in cells by controlling an interaction of the channel with a peripheral membrane-associated Ca2+-binding protein, likely ANXA1.
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Affiliation(s)
- Horia Vais
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Min Wang
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Karthik Mallilankaraman
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Riley Payne
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Chris McKennan
- Department of Statistics, University of PittsburghPittsburghUnited States
| | - Jeffrey T Lock
- Department of Neurobiology and Behavior, University of CaliforniaIrvineUnited States
| | - Lynn A Spruce
- Proteomics Core Facility, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - Carly Fiest
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Matthew Yan-lok Chan
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Ian Parker
- Department of Neurobiology and Behavior, University of CaliforniaIrvineUnited States
- Department of Physiology and Biophysics, University of CaliforniaIrvineUnited States
| | - Steven H Seeholzer
- Proteomics Core Facility, The Children’s Hospital of PhiladelphiaPhiladelphiaUnited States
| | - J Kevin Foskett
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
| | - Don-On Daniel Mak
- Department of Physiology, Perelman School of Medicine, University of PennsylvaniaPhiladelphiaUnited States
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10
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Hebeda CB, Sandri S, Benis CM, de Paula-Silva M, Loiola RA, Reutelingsperger C, Perretti M, Farsky SHP. Annexin A1/Formyl Peptide Receptor Pathway Controls Uterine Receptivity to the Blastocyst. Cells 2020; 9:cells9051188. [PMID: 32403233 PMCID: PMC7291299 DOI: 10.3390/cells9051188] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022] Open
Abstract
Embryo implantation into the uterine wall is a highly modulated, complex process. We previously demonstrated that Annexin A1 (AnxA1), which is a protein secreted by epithelial and inflammatory cells in the uterine microenvironment, controls embryo implantation in vivo. Here, we decipher the effects of recombinant AnxA1 in this phenomenon by using human trophoblast cell (BeWo) spheroids and uterine epithelial cells (Ishikawa; IK). AnxA1-treated IK cells demonstrated greater levels of spheroid adherence and upregulation of the tight junction molecules claudin-1 and zona occludens-1, as well as the glycoprotein mucin-1 (Muc-1). The latter effect of AnxA1 was not mediated through IL-6 secreted from IK cells, a known inducer of Muc-1 expression. Rather, these effects of AnxA1 involved activation of the formyl peptide receptors FPR1 and FPR2, as pharmacological blockade of FPR1 or FPR1/FPR2 abrogated such responses. The downstream actions of AnxA1 were mediated through the ERK1/2 phosphorylation pathway and F-actin polymerization in IK cells, as blockade of ERK1/2 phosphorylation reversed AnxA1-induced Muc-1 and claudin-1 expression. Moreover, FPR2 activation by AnxA1 induced vascular endothelial growth factor (VEGF) secretion by IK cells, and the supernatant of AnxA1-treated IK cells evoked angiogenesis in vitro. In conclusion, these data highlight the role of the AnxA1/FPR1/FPR2 pathway in uterine epithelial control of blastocyst implantation.
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Affiliation(s)
- Cristina B. Hebeda
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
| | - Cláudia M. Benis
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
| | - Marina de Paula-Silva
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
| | - Rodrigo A. Loiola
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
| | - Chris Reutelingsperger
- Faculty of Health, Medicine and Life Sciences, Part of Maastricht University Medical Center, Part of Maastricht University, 6211 LK Maastricht, The Netherlands;
| | - Mauro Perretti
- The William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK;
| | - Sandra H. P. Farsky
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo CEP 05508-000, Brazil; (C.B.H.); (S.S.); (C.M.B.); (M.d.P.-S.); (R.A.L.)
- Correspondence: ; Tel.: +55-(11)-3091-2197
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11
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Purvis GSD, Collino M, Loiola RA, Baragetti A, Chiazza F, Brovelli M, Sheikh MH, Collotta D, Cento A, Mastrocola R, Aragno M, Cutrin JC, Reutelingsperger C, Grigore L, Catapano AL, Yaqoob MM, Norata GD, Solito E, Thiemermann C. Identification of AnnexinA1 as an Endogenous Regulator of RhoA, and Its Role in the Pathophysiology and Experimental Therapy of Type-2 Diabetes. Front Immunol 2019; 10:571. [PMID: 30972066 PMCID: PMC6446914 DOI: 10.3389/fimmu.2019.00571] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/04/2019] [Indexed: 12/20/2022] Open
Abstract
Annexin A1 (ANXA1) is an endogenously produced anti-inflammatory protein, which plays an important role in the pathophysiology of diseases associated with chronic inflammation. We demonstrate that patients with type-2 diabetes have increased plasma levels of ANXA1 when compared to normoglycemic subjects. Plasma ANXA1 positively correlated with fatty liver index and elevated plasma cholesterol in patients with type-2 diabetes, suggesting a link between aberrant lipid handling, and ANXA1. Using a murine model of high fat diet (HFD)-induced insulin resistance, we then investigated (a) the role of endogenous ANXA1 in the pathophysiology of HFD-induced insulin resistance using ANXA1−/− mice, and (b) the potential use of hrANXA1 as a new therapeutic approach for experimental diabetes and its microvascular complications. We demonstrate that: (1) ANXA1−/− mice fed a HFD have a more severe diabetic phenotype (e.g., more severe dyslipidemia, insulin resistance, hepatosteatosis, and proteinuria) compared to WT mice fed a HFD; (2) treatment of WT-mice fed a HFD with hrANXA1 attenuated the development of insulin resistance, hepatosteatosis and proteinuria. We demonstrate here for the first time that ANXA1−/− mice have constitutively activated RhoA. Interestingly, diabetic mice, which have reduced tissue expression of ANXA1, also have activated RhoA. Treatment of HFD-mice with hrANXA1 restored tissue levels of ANXA1 and inhibited RhoA activity, which, in turn, resulted in restoration of the activities of Akt, GSK-3β and endothelial nitric oxide synthase (eNOS) secondary to re-sensitization of IRS-1 signaling. We further demonstrate in human hepatocytes that ANXA1 protects against excessive mitochondrial proton leak by activating FPR2 under hyperglycaemic conditions. In summary, our data suggest that (a) ANXA1 is a key regulator of RhoA activity, which restores IRS-1 signal transduction and (b) recombinant human ANXA1 may represent a novel candidate for the treatment of T2D and/or its complications.
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Affiliation(s)
- Gareth S D Purvis
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Massimo Collino
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Rodrigo A Loiola
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Andrea Baragetti
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Fausto Chiazza
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Martina Brovelli
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom.,Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Milan, Italy.,Centro SISA per lo studio del'Aterosclerosi, Bassini Hospital, Lombardy, Italy
| | - Madeeha H Sheikh
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Debora Collotta
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Alessia Cento
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Raffaella Mastrocola
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Manuela Aragno
- Department of Molecular Biotechnology and Sciences for the Health, University of Turin, Turin, Italy
| | - Juan C Cutrin
- Department of Molecular Biotechnology and Sciences for the Health, University of Turin, Turin, Italy
| | - Chris Reutelingsperger
- Department of Biochemistry, Cardiovascular Research Institute, Maastricht University, Maastricht, Netherlands
| | - Liliana Grigore
- Centro SISA per lo studio del'Aterosclerosi, Bassini Hospital, Lombardy, Italy.,IRCCS Multimedica, Lombardy, Italy
| | - Alberico L Catapano
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Magdi M Yaqoob
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi di Milano, Milan, Italy.,Centro SISA per lo studio del'Aterosclerosi, Bassini Hospital, Lombardy, Italy
| | - Egle Solito
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom.,Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Degli Studi di Napoli "Federico II", Naples, Italy
| | - Christoph Thiemermann
- Department of Translational Medicine and Therapeutics, Bart's and The London School of Medicine and Dentistry, The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
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12
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Enrich C, Rentero C, Meneses-Salas E, Tebar F, Grewal T. Annexins: Ca 2+ Effectors Determining Membrane Trafficking in the Late Endocytic Compartment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 981:351-385. [PMID: 29594868 DOI: 10.1007/978-3-319-55858-5_14] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Despite the discovery of annexins 40 years ago, we are just beginning to understand some of the functions of these still enigmatic proteins. Defined and characterized by their ability to bind anionic membrane lipids in a Ca2+-dependent manner, each annexin has to be considered a multifunctional protein, with a multitude of cellular locations and diverse activities. Underlying causes for this considerable functional diversity include their capability to associate with multiple cytosolic and membrane proteins. In recent years, the increasingly recognized establishment of membrane contact sites between subcellular compartments opens a new scenario for annexins as instrumental players to link Ca2+ signalling with the integration of membrane trafficking in many facets of cell physiology. In this chapter, we review and discuss current knowledge on the contribution of annexins in the biogenesis and functioning of the late endocytic compartment, affecting endo- and exocytic pathways in a variety of physiological consequences ranging from membrane repair, lysosomal exocytosis, to cell migration.
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Affiliation(s)
- Carlos Enrich
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Centre de Recerca Biomèdica (CELLEX), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. .,Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain.
| | - Carles Rentero
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Centre de Recerca Biomèdica (CELLEX), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Elsa Meneses-Salas
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Centre de Recerca Biomèdica (CELLEX), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Francesc Tebar
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Centre de Recerca Biomèdica (CELLEX), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Thomas Grewal
- Faculty of Pharmacy, University of Sydney, Sydney, Australia
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13
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McArthur S, Loiola RA, Maggioli E, Errede M, Virgintino D, Solito E. The restorative role of annexin A1 at the blood-brain barrier. Fluids Barriers CNS 2016; 13:17. [PMID: 27655189 PMCID: PMC5031267 DOI: 10.1186/s12987-016-0043-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022] Open
Abstract
Annexin A1 is a potent anti-inflammatory molecule that has been extensively studied in the peripheral immune system, but has not as yet been exploited as a therapeutic target/agent. In the last decade, we have undertaken the study of this molecule in the central nervous system (CNS), focusing particularly on the primary interface between the peripheral body and CNS: the blood-brain barrier. In this review, we provide an overview of the role of this molecule in the brain, with a particular emphasis on its functions in the endothelium of the blood-brain barrier, and the protective actions the molecule may exert in neuroinflammatory, neurovascular and metabolic disease. We focus on the possible new therapeutic avenues opened up by an increased understanding of the role of annexin A1 in the CNS vasculature, and its potential for repairing blood-brain barrier damage in disease and aging.
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Affiliation(s)
- Simon McArthur
- Department of Biomedical Sciences, Faculty of Science and Technology, University of Westminster, London, UK
| | - Rodrigo Azevedo Loiola
- William Harvey Research Institute, School of Medicine and Dentistry, Queen Mary University, London, UK
| | - Elisa Maggioli
- William Harvey Research Institute, School of Medicine and Dentistry, Queen Mary University, London, UK
| | - Mariella Errede
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, Bari University School of Medicine, Bari, Italy
| | - Daniela Virgintino
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, Bari University School of Medicine, Bari, Italy
| | - Egle Solito
- William Harvey Research Institute, School of Medicine and Dentistry, Queen Mary University, London, UK
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14
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Maggioli E, McArthur S, Mauro C, Kieswich J, Kusters DHM, Reutelingsperger CPM, Yaqoob M, Solito E. Estrogen protects the blood-brain barrier from inflammation-induced disruption and increased lymphocyte trafficking. Brain Behav Immun 2016; 51:212-222. [PMID: 26321046 DOI: 10.1016/j.bbi.2015.08.020] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/19/2015] [Accepted: 08/27/2015] [Indexed: 12/11/2022] Open
Abstract
Sex differences have been widely reported in neuroinflammatory disorders, focusing on the contributory role of estrogen. The microvascular endothelium of the brain is a critical component of the blood-brain barrier (BBB) and it is recognized as a major interface for communication between the periphery and the brain. As such, the cerebral capillary endothelium represents an important target for the peripheral estrogen neuroprotective functions, leading us to hypothesize that estrogen can limit BBB breakdown following the onset of peripheral inflammation. Comparison of male and female murine responses to peripheral LPS challenge revealed a short-term inflammation-induced deficit in BBB integrity in males that was not apparent in young females, but was notable in older, reproductively senescent females. Importantly, ovariectomy and hence estrogen loss recapitulated an aged phenotype in young females, which was reversible upon estradiol replacement. Using a well-established model of human cerebrovascular endothelial cells we investigated the effects of estradiol upon key barrier features, namely paracellular permeability, transendothelial electrical resistance, tight junction integrity and lymphocyte transmigration under basal and inflammatory conditions, modeled by treatment with TNFα and IFNγ. In all cases estradiol prevented inflammation-induced defects in barrier function, action mediated in large part through up-regulation of the central coordinator of tight junction integrity, annexin A1. The key role of this protein was then further confirmed in studies of human or murine annexin A1 genetic ablation models. Together, our data provide novel mechanisms for the protective effects of estrogen, and enhance our understanding of the beneficial role it plays in neurovascular/neuroimmune disease.
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Affiliation(s)
- E Maggioli
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - S McArthur
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK; Department of Biomedical Sciences, Faculty of Science & Technology, University of Westminster, New Cavendish Street, London W1W 6UW, UK
| | - C Mauro
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - J Kieswich
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - D H M Kusters
- Cardiovascular Research Institute, Department of Biochemistry, Maastricht University, 6200 Maastricht, The Netherlands; Department of Pathology, University of Michigan Health System, 109 Zina Pitcher Place, 4062 BSRB, Ann Arbor, MI 48109-2200, United States
| | - C P M Reutelingsperger
- Cardiovascular Research Institute, Department of Biochemistry, Maastricht University, 6200 Maastricht, The Netherlands
| | - M Yaqoob
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK
| | - E Solito
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK.
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15
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Sobral-Leite M, Wesseling J, Smit VTHBM, Nevanlinna H, van Miltenburg MH, Sanders J, Hofland I, Blows FM, Coulson P, Patrycja G, Schellens JHM, Fagerholm R, Heikkilä P, Aittomäki K, Blomqvist C, Provenzano E, Ali HR, Figueroa J, Sherman M, Lissowska J, Mannermaa A, Kataja V, Kosma VM, Hartikainen JM, Phillips KA, Couch FJ, Olson JE, Vachon C, Visscher D, Brenner H, Butterbach K, Arndt V, Holleczek B, Hooning MJ, Hollestelle A, Martens JWM, van Deurzen CHM, van de Water B, Broeks A, Chang-Claude J, Chenevix-Trench G, Easton DF, Pharoah PDP, García-Closas M, de Graauw M, Schmidt MK. Annexin A1 expression in a pooled breast cancer series: association with tumor subtypes and prognosis. BMC Med 2015; 13:156. [PMID: 26137966 PMCID: PMC4489114 DOI: 10.1186/s12916-015-0392-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 06/04/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Annexin A1 (ANXA1) is a protein related with the carcinogenesis process and metastasis formation in many tumors. However, little is known about the prognostic value of ANXA1 in breast cancer. The purpose of this study is to evaluate the association between ANXA1 expression, BRCA1/2 germline carriership, specific tumor subtypes and survival in breast cancer patients. METHODS Clinical-pathological information and follow-up data were collected from nine breast cancer studies from the Breast Cancer Association Consortium (BCAC) (n = 5,752) and from one study of familial breast cancer patients with BRCA1/2 mutations (n = 107). ANXA1 expression was scored based on the percentage of immunohistochemical staining in tumor cells. Survival analyses were performed using a multivariable Cox model. RESULTS The frequency of ANXA1 positive tumors was higher in familial breast cancer patients with BRCA1/2 mutations than in BCAC patients, with 48.6 % versus 12.4 %, respectively; P <0.0001. ANXA1 was also highly expressed in BCAC tumors that were poorly differentiated, triple negative, EGFR-CK5/6 positive or had developed in patients at a young age. In the first 5 years of follow-up, patients with ANXA1 positive tumors had a worse breast cancer-specific survival (BCSS) than ANXA1 negative (HRadj = 1.35; 95 % CI = 1.05-1.73), but the association weakened after 10 years (HRadj = 1.13; 95 % CI = 0.91-1.40). ANXA1 was a significant independent predictor of survival in HER2+ patients (10-years BCSS: HRadj = 1.70; 95 % CI = 1.17-2.45). CONCLUSIONS ANXA1 is overexpressed in familial breast cancer patients with BRCA1/2 mutations and correlated with poor prognosis features: triple negative and poorly differentiated tumors. ANXA1 might be a biomarker candidate for breast cancer survival prediction in high risk groups such as HER2+ cases.
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Affiliation(s)
- Marcelo Sobral-Leite
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Programa de Farmacologia, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil.
| | - Jelle Wesseling
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Division of Diagnostic Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Vincent T H B M Smit
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands.
| | - Heli Nevanlinna
- University of Helsinki, Helsinki, Finland.
- Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland.
| | | | - Joyce Sanders
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Ingrid Hofland
- Core Facility Molecular Pathology and Biobanking, Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Fiona M Blows
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK.
| | - Penny Coulson
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK.
| | | | - Jan H M Schellens
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Department of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute of Pharmaceutical Sciences (UIPS), Utrecht, The Netherlands.
| | - Rainer Fagerholm
- University of Helsinki, Helsinki, Finland.
- Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland.
| | - Päivi Heikkilä
- University of Helsinki, Helsinki, Finland.
- Department of Pathology, Helsinki University Central Hospital, Helsinki, Finland.
| | - Kristiina Aittomäki
- University of Helsinki, Helsinki, Finland.
- Department of Clinical Genetics, Helsinki University Central Hospital, Helsinki, Finland.
| | - Carl Blomqvist
- University of Helsinki, Helsinki, Finland.
- Department of Oncology, Helsinki University Central Hospital, Helsinki, Finland.
| | - Elena Provenzano
- Cancer Research UK Cambridge Institute Oncology, University of Cambridge, Cambridge, UK.
- Department of Histopathology, Addenbrooke's Hospital, Cambridge University Hospital NHS Foundation Trust, Cambridge, UK.
| | - Hamid Raza Ali
- Cancer Research UK Cambridge Institute Oncology, University of Cambridge, Cambridge, UK.
- Department of Pathology, University of Cambridge, Cambridge, UK.
| | - Jonine Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
| | - Mark Sherman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD, USA.
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland.
| | - Arto Mannermaa
- School of Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, Kuopio, Finland.
- Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland.
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland.
| | - Vesa Kataja
- Cancer Center, Kuopio University Hospital, Kuopio, Finland.
- Jyväskylä Central Hospital, Jyväskylä, Finland.
| | - Veli-Matti Kosma
- School of Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, Kuopio, Finland.
- Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland.
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland.
| | - Jaana M Hartikainen
- School of Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, Kuopio, Finland.
- Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland.
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland.
| | - Kelly-Anne Phillips
- Division of Cancer Medicine, Peter MacCallum Cancer Centre, Melbourne, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia.
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, School of Population Health, The University of Melbourne, Melbourne, Australia.
- Department of Medicine, St Vincent's Hospital, The University of Melbourne, Melbourne, Australia.
| | - Fergus J Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Janet E Olson
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
| | - Celine Vachon
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
| | - Daniel Visscher
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Division of Preventive Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Katja Butterbach
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | | | - Maartje J Hooning
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.
| | - Antoinette Hollestelle
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.
| | - John W M Martens
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands.
| | | | - Bob van de Water
- Division of Toxicology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
| | - Annegien Broeks
- Core Facility Molecular Pathology and Biobanking, Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, Unit of Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | | | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK.
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK.
| | - Montserrat García-Closas
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK.
- Breakthrough Breast Cancer Centre, London, UK.
| | - Marjo de Graauw
- Division of Toxicology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
| | - Marjanka K Schmidt
- Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
- Division of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands.
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16
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McArthur S, Gobbetti T, Kusters DHM, Reutelingsperger CP, Flower RJ, Perretti M. Definition of a Novel Pathway Centered on Lysophosphatidic Acid To Recruit Monocytes during the Resolution Phase of Tissue Inflammation. THE JOURNAL OF IMMUNOLOGY 2015; 195:1139-51. [PMID: 26101324 PMCID: PMC4505961 DOI: 10.4049/jimmunol.1500733] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/21/2015] [Indexed: 01/13/2023]
Abstract
Blood-derived monocytes remove apoptotic cells and terminate inflammation in settings as diverse as atherosclerosis and Alzheimer’s disease. They express high levels of the proresolving receptor ALX/FPR2, which is activated by the protein annexin A1 (ANXA1), found in high abundance in inflammatory exudates. Using primary human blood monocytes from healthy donors, we identified ANXA1 as a potent CD14+CD16− monocyte chemoattractant, acting via ALX/FPR2. Downstream signaling pathway analysis revealed the p38 MAPK-mediated activation of a calcium independent phospholipase A2 with resultant synthesis of lysophosphatidic acid (LPA) driving chemotaxis through LPA receptor 2 and actin cytoskeletal mobilization. In vivo experiments confirmed ANXA1 as an independent phospholipase A2–dependent monocyte recruiter; congruently, monocyte recruitment was significantly impaired during ongoing zymosan-induced inflammation in AnxA1−/− or alx/fpr2/3−/− mice. Using a dorsal air-pouch model, passive transfer of apoptotic neutrophils between AnxA1−/− and wild-type mice identified effete neutrophils as the primary source of soluble ANXA1 in inflammatory resolution. Together, these data elucidate a novel proresolving network centered on ANXA1 and LPA generation and identify previously unappreciated determinants of ANXA1 and ALX/FPR2 signaling in monocytes.
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Affiliation(s)
- Simon McArthur
- William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, United Kingdom;
| | - Thomas Gobbetti
- William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Dennis H M Kusters
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200 MD Maastricht, the Netherlands; and Department of Biochemistry, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Christopher P Reutelingsperger
- CARIM School for Cardiovascular Diseases, Maastricht University, 6200 MD Maastricht, the Netherlands; and Department of Biochemistry, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Roderick J Flower
- William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Mauro Perretti
- William Harvey Research Institute, Barts and London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, United Kingdom;
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17
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Annexin-A1 controls an ERK-RhoA-NFκB activation loop in breast cancer cells. Biochem Biophys Res Commun 2015; 461:47-53. [PMID: 25866182 DOI: 10.1016/j.bbrc.2015.03.166] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 03/28/2015] [Indexed: 11/23/2022]
Abstract
Wound healing is critical for normal development and pathological processes including cancer cell metastasis. MAPK, Rho-GTPases and NFκB are important regulators of wound healing, but mechanisms for their integration are incompletely understood. Annexin-A1 (ANXA1) is upregulated in invasive breast cancer cells resulting in constitutive activation of NFκB. We show here that silencing ANXA1 increases the formation of stress fibers and focal adhesions, which may inhibit wound healing. ANXA1 regulated wound healing is dependent on the activation of ERK1/2. ANXA1 increases the activation of RhoA, which is dependent on ERK activation. Furthermore, active RhoA is important in NF-κB activation, where constitutively active RhoA potentiates NFκB activation, while dominant negative RhoA inhibits NFκB activation in response to CXCL12 stimulation and active MEKK plasmids. These findings establish a central role for ANXA1 in the cell migration through the activation of NFκB, ERK1/2 and RhoA.
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18
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Ka SM, Tsai PY, Chao TK, Yang SM, Hung YJ, Chen JS, Shui HA, Chen A. Urine annexin A1 as an index for glomerular injury in patients. DISEASE MARKERS 2014; 2014:854163. [PMID: 24591769 PMCID: PMC3925619 DOI: 10.1155/2014/854163] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 10/20/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND We recently demonstrated high urine levels of annexin A1 (ANXA1) protein in a mouse Adriamycin-induced glomerulopathy (ADG) model. OBJECTIVE To establish ANXA1 as a potential biomarker for glomerular injury in patients. METHODS A time-course study in the mouse ADG model, followed by renal tissues and urine samples from patients with various types of glomerular disorders for ANXA1. RESULTS Urinary ANXA1 protein was (1) detectable in both the ADG model and in patients except those with minimal change disease (MCD); (2) positively correlated with renal lesions in patients; and (3) early detectable in diabetes patients with normoalbuminuria. CONCLUSIONS ANXA1 is a universal biomarker that is helpful in the early diagnosis, prognostic prediction, and outcome monitoring of glomerular injury. Measurement of urinary ANXA1 protein levels can help in differentiating MCD from other types of glomerular disorders.
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Affiliation(s)
- Shuk-Man Ka
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Yi Tsai
- Department of Animal Pharmacology, Development Center for Biotechnology, Taipei, Taiwan
| | - Tai-Kuang Chao
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shun-Min Yang
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Jen Hung
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Jin-Shuen Chen
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hao-Ai Shui
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Ann Chen
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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19
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Makani V, Sultana R, Sie KS, Orjiako D, Tatangelo M, Dowling A, Cai J, Pierce W, Butterfield DA, Hill J, Park J. Annexin A1 complex mediates oxytocin vesicle transport. J Neuroendocrinol 2013; 25:1241-1254. [PMID: 24118254 PMCID: PMC3975805 DOI: 10.1111/jne.12112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 09/24/2013] [Accepted: 09/29/2013] [Indexed: 12/20/2022]
Abstract
Oxytocin is a major neuropeptide that modulates the brain functions involved in social behaviour and interaction. Despite of the importance of oxytocin for the neural control of social behaviour, little is known about the molecular mechanism(s) by which oxytocin secretion in the brain is regulated. Pro-oxytocin is synthesised in the cell bodies of hypothalamic neurones in the supraoptic and paraventricular nuclei and processed to a 9-amino-acid mature form during post-Golgi transport to the secretion sites at the axon terminals and somatodendritic regions. Oxytocin secreted from the somatodendritic regions diffuses throughout the hypothalamus and its neighbouring brain regions. Some oxytocin-positive axons innervate and secrete oxytocin to the brain regions distal to the hypothalamus. Brain oxytocin binds to its receptors in the brain regions involved in social behaviour. Oxytocin is also secreted from the axon terminal at the posterior pituitary gland into the blood circulation. We have discovered a new molecular complex consisting of annexin A1 (ANXA1), A-kinase anchor protein 150 (AKAP150) and microtubule motor that controls the distribution of oxytocin vesicles between the axon and the cell body in a protein kinase A (PKA)- and protein kinase C (PKC)-sensitive manner. ANXA1 showed significant co-localisation with oxytocin vesicles. Activation of PKA enhanced the association of kinesin-2 with ANXA1, thus increasing the axon-localisation of oxytocin vesicles. Conversely, activation of PKC decreased the binding of kinesin-2 to ANXA1, thus attenuating the axon-localisation of oxytocin vesicles. The result of the present study suggest that ANXA1 complex coordinates the actions of PKA and PKC to control the distribution of oxytocin vesicles between the axon and the cell body.
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Affiliation(s)
- Vishruti Makani
- Department of Neurosciences, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Rukhsana Sultana
- Department of Chemistry, University of Kentucky, Lexington, KY 40506
| | - Khin Sander Sie
- Department of Neurosciences, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Doris Orjiako
- Department of Neurosciences, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Marco Tatangelo
- Department of Neurosciences, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Abigail Dowling
- Department of Physiology and Pharmacology, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Jian Cai
- Department of Pharmacology, University of Louisville, Louisville, KY 40292
| | - William Pierce
- Department of Pharmacology, University of Louisville, Louisville, KY 40292
| | | | - Jennifer Hill
- Department of Physiology and Pharmacology, University of Toledo, College of Medicine, Toledo, OH 43614
| | - Joshua Park
- Department of Neurosciences, University of Toledo, College of Medicine, Toledo, OH 43614
- To whom correspondence should be addressed. Department of Neurosciences, University of Toledo College of Medicine, Toledo, Ohio 43614, , Phone: (419) 383-4085, Fax: (419) 383-3008
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D'Acunto CW, Gbelcova H, Festa M, Ruml T. The complex understanding of Annexin A1 phosphorylation. Cell Signal 2013; 26:173-8. [PMID: 24103589 DOI: 10.1016/j.cellsig.2013.09.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 09/18/2013] [Accepted: 09/30/2013] [Indexed: 12/20/2022]
Abstract
Annexin A1 (ANXA1) is the first characterized member of the annexins superfamily. It binds the cellular membrane phospholipids in Ca(2+) regulated manner. Annexin A1 has been found in several tissues and many physiological roles as hormones secretion, vesiculation, inflammatory response, apoptosis and differentiation have been shown. Its subcellular localization and binding with many partner proteins are altered accordingly with its physiological role. The Annexin A1 membrane localization is crucial for binding to receptors, suggesting a paracrine and juxtacrine extracellular action. Annexin A1 is subjected to several post-translational modifications. In particular the protein is phosphorylated on several residues both on the N-terminal functional domain and on the C-terminus core. Different kinases have been identified as responsible for the phosphorylation status of selective residues. The specific change in the phosphorylation status on the different sites alters ANXA1 localization, binding properties and functions. This review shows the physiological relevance of the ANXA1 phosphorylation leading to the conclusion that numerous and different roles of Annexin A1 could be associated with different phosphorylations to alter not only intracellular localization and bindings to its partners but also the extracellular receptor interactions.
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Affiliation(s)
- Cosimo Walter D'Acunto
- Department of Biochemistry and Microbiology, Institute of Chemical Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic.
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21
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Huang Y, Deng T, Zuo K. Cotton annexin proteins participate in the establishment of fiber cell elongation scaffold. PLANT SIGNALING & BEHAVIOR 2013; 8:25601. [PMID: 23838954 PMCID: PMC4002604 DOI: 10.4161/psb.25601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 06/30/2013] [Indexed: 06/02/2023]
Abstract
Cotton plant is one of the most important economic crops in the world which supplies natural fiber for textile industry. The crucial traits of cotton fiber quality are fiber length and strength, which are mostly determined by the fiber elongation stage. Annexins are assumed to be involved in regulating fiber elongation, but direct evidences remain elusive. Recently, we have investigated the activities of fiber-specific expressed annexins AnGb5/6 and their interacted proteins in cotton. AnGb5 and 6 can interact reciprocally to generate a protein macro-raft in cell membrane. This macro-raft is probably a stabilized scaffold for Actin1 organization. The actin assembling direction and density are correlated with AnGb6 gene expression and fiber expanding rate among three fiber length genotypes. These results suggest that annexins may act as the adaptor that linked fiber cell membrane to actin assembling. Due to the strong Ca (2+) and lipid binding ability of annexins, these results also indicate that annexins complex may function as an intermediate to receive Ca (2+) or lipid signals during fiber elongation.
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Huang Y, Wang J, Zhang L, Zuo K. A cotton annexin protein AnxGb6 regulates fiber elongation through its interaction with actin 1. PLoS One 2013; 8:e66160. [PMID: 23750279 PMCID: PMC3672135 DOI: 10.1371/journal.pone.0066160] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Accepted: 05/02/2013] [Indexed: 01/18/2023] Open
Abstract
Annexins are assumed to be involved in regulating cotton fiber elongation, but direct evidence remains to be presented. Here we cloned six Annexin genes (AnxGb) abundantly expressed in fiber from sea-island cotton (G. barbadense). qRT-PCR results indicated that all six G. barbadense annexin genes were expressed in elongating cotton fibers, while only the expression of AnxGb6 was cotton fiber-specific. Yeast two hybridization and BiFC analysis revealed that AnxGb6 homodimer interacted with a cotton fiber specific actin GbAct1. Ectopic-expressed AnxGb6 in Arabidopsis enhanced its root elongation without increasing the root cell number. Ectopic AnxGb6 expression resulted in more F-actin accumulation in the basal part of the root cell elongation zone. Analysis of AnxGb6 expression in three cotton genotypes with different fiber length confirmed that AnxGb6 expression was correlated to cotton fiber length, especially fiber elongation rate. Our results demonstrated that AnxGb6 was important for fiber elongation by potentially providing a domain for F-actin organization.
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Affiliation(s)
- Yiqun Huang
- Plant Biotechnology Research Center, SJTU-Cornell Institute of Sustainable Agriculture and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lida Zhang
- Plant Biotechnology Research Center, SJTU-Cornell Institute of Sustainable Agriculture and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Kaijing Zuo
- Plant Biotechnology Research Center, SJTU-Cornell Institute of Sustainable Agriculture and Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- * E-mail:
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23
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Caron D, Maaroufi H, Michaud S, Tanguay RM, Faure RL. Annexin A1 is regulated by domains cross-talk through post-translational phosphorylation and SUMOYlation. Cell Signal 2013; 25:1962-9. [PMID: 23727357 DOI: 10.1016/j.cellsig.2013.05.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 05/15/2013] [Accepted: 05/15/2013] [Indexed: 12/24/2022]
Abstract
Mouse prostate membrane-associated proteins of the annexin family showed changes in SUMOylation during androgen treatment. Among these the calcium-binding annexin A1 protein (ANXA1) was chosen for further characterization given its role in protein secretion and cancer. SUMOylation of ANXA1 was confirmed by overexpressing SUMO-1 in LNCaP cells. Site-directed mutagenesis indicated that K257 located in a SUMOylation consensus motif in the C-terminal calcium-binding DA3 repeat domain is SUMOylated. Mutation of the N-terminal Y21 decreased markedly the SUMOylation signal while EGF stimulation increased ANXA1 SUMOylation. A structural analysis of ANXA1 revealed that K257 is located in a hot spot where Ca(2+) and SUMO-1 bind and where a nuclear export signal and a polyubiquitination site are also present. Also, Y21 is buried inside an α-helix structure in the Ca(2+)-free conformation implying that Ca(2+) binding, and the subsequent expelling of the N-terminal α-helix in a disordered conformation, is permissive for its phosphorylation. These results show for the first time that SUMOylation can be regulated by an external signal (EGF) and indicate the presence of a cross-talk between the N-terminal and C-terminal domains of ANXA1 through post-translational modifications.
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Affiliation(s)
- Danielle Caron
- Department of Pediatrics, Laboratory of Cellular Biology, Centre de recherche du CHUQ Centre-Mère-Enfant Soleil, Canada
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24
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Annexin-phospholipid interactions. Functional implications. Int J Mol Sci 2013; 14:2652-83. [PMID: 23358253 PMCID: PMC3588008 DOI: 10.3390/ijms14022652] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 01/12/2013] [Accepted: 01/15/2013] [Indexed: 02/03/2023] Open
Abstract
Annexins constitute an evolutionary conserved multigene protein superfamily characterized by their ability to interact with biological membranes in a calcium dependent manner. They are expressed by all living organisms with the exception of certain unicellular organisms. The vertebrate annexin core is composed of four (eight in annexin A6) homologous domains of around 70 amino acids, with the overall shape of a slightly bent ring surrounding a central hydrophilic pore. Calcium- and phospholipid-binding sites are located on the convex side while the N-terminus links domains I and IV on the concave side. The N-terminus region shows great variability in length and amino acid sequence and it greatly influences protein stability and specific functions of annexins. These proteins interact mainly with acidic phospholipids, such as phosphatidylserine, but differences are found regarding their affinity for lipids and calcium requirements for the interaction. Annexins are involved in a wide range of intra- and extracellular biological processes in vitro, most of them directly related with the conserved ability to bind to phospholipid bilayers: membrane trafficking, membrane-cytoskeleton anchorage, ion channel activity and regulation, as well as antiinflammatory and anticoagulant activities. However, the in vivo physiological functions of annexins are just beginning to be established.
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25
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Identification of an essential endogenous regulator of blood-brain barrier integrity, and its pathological and therapeutic implications. Proc Natl Acad Sci U S A 2012; 110:832-41. [PMID: 23277546 DOI: 10.1073/pnas.1209362110] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The blood-brain barrier (BBB), a critical guardian of communication between the periphery and the brain, is frequently compromised in neurological diseases such as multiple sclerosis (MS), resulting in the inappropriate passage of molecules and leukocytes into the brain. Here we show that the glucocorticoid anti-inflammatory messenger annexin A1 (ANXA1) is expressed in brain microvascular endothelial cells, where it regulates BBB integrity. In particular, ANXA1(-/-) mice exhibit significantly increased BBB permeability as a result of disrupted interendothelial cell tight junctions, essentially related to changes in the actin cytoskeleton, which stabilizes tight and adherens junctions. This situation is reminiscent of early MS pathology, a relationship confirmed by our detection of a selective loss of ANXA1 in the plasma and cerebrovascular endothelium of patients with MS. Importantly, this loss is swiftly restored by i.v. administration of human recombinant ANXA1. Analysis in vitro confirms that treatment of cerebrovascular endothelial cells with recombinant ANXA1 restores cell polarity, cytoskeleton integrity, and paracellular permeability through inhibition of the small G protein RhoA. We thus propose ANXA1 as a critical physiological regulator of BBB integrity and suggest it may have utility in the treatment of MS, correcting BBB function and hence ameliorating disease.
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26
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Suri D, Vaidya VA. Glucocorticoid regulation of brain-derived neurotrophic factor: relevance to hippocampal structural and functional plasticity. Neuroscience 2012; 239:196-213. [PMID: 22967840 DOI: 10.1016/j.neuroscience.2012.08.065] [Citation(s) in RCA: 155] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 08/28/2012] [Accepted: 08/30/2012] [Indexed: 12/20/2022]
Abstract
Glucocorticoids serve as key stress response hormones that facilitate stress coping. However, sustained glucocorticoid exposure is associated with adverse consequences on the brain, in particular within the hippocampus. Chronic glucocorticoid exposure evokes neuronal cell damage and dendritic atrophy, reduces hippocampal neurogenesis and impairs synaptic plasticity. Glucocorticoids also alter expression and signaling of the neurotrophin, brain-derived neurotrophic factor (BDNF). Since BDNF is known to promote neuroplasticity, enhance cell survival, increase hippocampal neurogenesis and cellular excitability, it has been hypothesized that specific adverse effects of glucocorticoids may be mediated by attenuating BDNF expression and signaling. The purpose of this review is to summarize the current state of literature examining the influence of glucocorticoids on BDNF, and to address whether specific effects of glucocorticoids arise through perturbation of BDNF signaling. We integrate evidence of glucocorticoid regulation of BDNF at multiple levels, spanning from the well-documented glucocorticoid-induced changes in BDNF mRNA to studies examining alterations in BDNF receptor-mediated signaling. Further, we delineate potential lines of future investigation to address hitherto unexplored aspects of the influence of glucocorticoids on BDNF. Finally, we discuss the current understanding of the contribution of BDNF to the modulation of structural and functional plasticity by glucocorticoids, in particular in the context of the hippocampus. Understanding the mechanistic crosstalk between glucocorticoids and BDNF holds promise for the identification of potential therapeutic targets for disorders associated with the dysfunction of stress hormone pathways.
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Affiliation(s)
- D Suri
- Department of Biological Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India
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Ng FSP, Wong KY, Guan SP, Mustafa FB, Kajiji TS, Bist P, Biswas SK, Wong WSF, Lim LHK. Annexin-1-deficient mice exhibit spontaneous airway hyperresponsiveness and exacerbated allergen-specific antibody responses in a mouse model of asthma. Clin Exp Allergy 2011; 41:1793-803. [PMID: 22092555 DOI: 10.1111/j.1365-2222.2011.03855.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 07/14/2011] [Accepted: 07/28/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND Glucocorticoids are the mainstream drugs used in the treatment and control of inflammatory diseases such as asthma. Annexin-1 (ANXA1) is an anti-inflammatory protein which has been described as an endogenous protein responsible for some anti-inflammatory glucocorticoid effects. Previous studies have identified its importance in other immune diseases such as rheumatoid arthritis and cystic fibrosis. ANXA1-deficient ((-/-)) mice are Th2 biased, and ANXA1 N-terminus peptide exhibits anti-inflammatory activity in a rat model of pulmonary inflammation. OBJECTIVE ANXA1 protein is found in bronchoalveolar lavage fluid from asthmatics. However, the function of ANXA1 in the pathological development of allergy or asthma is unclear. Thus, in this study we intended to examine the effect of ANXA1 deficiency on allergen-specific antibody responses and airway responses to methacholine (Mch). METHODS ANXA1(-/-) mice were sensitized with ovalbumin (OVA) and challenged with aerosolized OVA. Airway resistance, lung compliance and enhanced pause (PenH) were measured in naïve, sensitized and saline or allergen-challenged wild-type (WT) and ANXA1(-/-) mice. Total and allergen-specific antibodies were measured in the serum. RESULTS We show that allergen-specific and total IgE, IgG2a and IgG2b levels were significantly higher in ANXA1(-/-) mice. Furthermore, naïve ANXA1(-/-) mice displayed higher airway hypersensitivity to inhaled Mch, and significant differences were also observed in allergen-sensitized and allergen-challenged ANXA1(-/-) mice compared with WT mice. CONCLUSIONS In conclusion, ANXA1(-/-) mice possess multiple features characteristic to allergic asthma, such as airway hyperresponsiveness and enhanced antibody responses, suggesting that ANXA1 plays a critical regulatory role in the development of asthma. CLINICAL RELEVANCE We postulate that ANXA1 is an important regulatory factor in the development of allergic disease and dysregulation of its expression can lead to pathological changes which may affect disease progression.
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Affiliation(s)
- F S P Ng
- Department of Physiology, National University of Singapore
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28
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Konopka-Postupolska D, Clark G, Hofmann A. Structure, function and membrane interactions of plant annexins: an update. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2011; 181:230-41. [PMID: 21763533 DOI: 10.1016/j.plantsci.2011.05.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 05/18/2011] [Accepted: 05/18/2011] [Indexed: 05/08/2023]
Abstract
Knowledge accumulated over the past 15 years on plant annexins clearly indicates that this disparate group of proteins builds on the common annexin function of membrane association, but possesses divergent molecular mechanisms. Functionally, the current literature agrees on a key role of plant annexins in stress response processes such as wound healing and drought tolerance. This is contrasted by only few established details of the molecular level mechanisms that are driving these activities. In this review, we appraise the current knowledge of plant annexin molecular, functional and structural properties with a special emphasis on topics of less coverage in recent past overviews. In particular, plant annexin post-translational modification, roles in polar growth and membrane stabilisation processes are discussed.
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Vranakis I, De Bock PJ, Papadioti A, Samoilis G, Tselentis Y, Gevaert K, Tsiotis G, Psaroulaki A. Unraveling Persistent Host Cell Infection with Coxiella burnetii by Quantitative Proteomics. J Proteome Res 2011; 10:4241-51. [DOI: 10.1021/pr200422f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Iosif Vranakis
- Department of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine, Medical School, University of Crete, GR-71110 Heraklion, Greece
| | - Pieter-Jan De Bock
- Department of Medical Protein Research, VIB, B-9000 Ghent, Belgium
- Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium
| | - Anastasia Papadioti
- Division of Biochemistry, Department of Chemistry, University of Crete, P.O. Box 2208, GR-71003 Voutes, Greece
| | - Georgios Samoilis
- Department of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine, Medical School, University of Crete, GR-71110 Heraklion, Greece
- Division of Biochemistry, Department of Chemistry, University of Crete, P.O. Box 2208, GR-71003 Voutes, Greece
| | - Yannis Tselentis
- Department of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine, Medical School, University of Crete, GR-71110 Heraklion, Greece
| | - Kris Gevaert
- Department of Medical Protein Research, VIB, B-9000 Ghent, Belgium
- Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium
| | - Georgios Tsiotis
- Division of Biochemistry, Department of Chemistry, University of Crete, P.O. Box 2208, GR-71003 Voutes, Greece
| | - Anna Psaroulaki
- Department of Clinical Bacteriology, Parasitology, Zoonoses and Geographical Medicine, Medical School, University of Crete, GR-71110 Heraklion, Greece
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McArthur S, Cristante E, Paterno M, Christian H, Roncaroli F, Gillies GE, Solito E. Annexin A1: a central player in the anti-inflammatory and neuroprotective role of microglia. THE JOURNAL OF IMMUNOLOGY 2010; 185:6317-28. [PMID: 20962261 DOI: 10.4049/jimmunol.1001095] [Citation(s) in RCA: 149] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The brain microenvironment is continuously monitored by microglia with the detection of apoptotic cells or pathogens being rapidly followed by their phagocytosis to prevent inflammatory responses. The protein annexin A1 (ANXA1) is key to the phagocytosis of apoptotic leukocytes during peripheral inflammatory resolution, but the pathophysiological significance of its expression in the CNS that is restricted almost exclusively to microglia is unclear. In this study, we test the hypothesis that ANXA1 is important in the microglial clearance of apoptotic neurons in both noninflammatory and inflammatory conditions. We have identified ANXA1 to be sparingly expressed in microglia of normally aged human brains and to be more strongly expressed in Alzheimer's disease. Using an in vitro model comprising microglial and neuronal cell lines, as well as primary microglia from wild-type and ANXA1 null mice, we have identified two distinct roles for microglial ANXA1: 1) controlling the noninflammatory phagocytosis of apoptotic neurons and 2) promoting resolution of inflammatory microglial activation. In particular, we showed that microglial-derived ANXA1 targets apoptotic neurons, serving as both an "eat me" signal and a bridge between phosphatidylserine on the dying cell and formyl peptide receptor 2 on the phagocytosing microglia. Moreover, inflammatory activation of microglia impairs their ability to discriminate between apoptotic and nonapoptotic cells, an ability restored by exogenous ANXA1. We thus show that ANXA1 is fundamental for brain homeostasis, and we suggest that ANXA1 and its peptidomimetics can be novel therapeutic targets in neuroinflammation.
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Affiliation(s)
- Simon McArthur
- Wolfson Neuroscience Laboratories, Faculty of Medicine, Imperial College London, London, UK
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31
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Bernhart E, Kollroser M, Rechberger G, Reicher H, Heinemann A, Schratl P, Hallström S, Wintersperger A, Nusshold C, DeVaney T, Zorn-Pauly K, Malli R, Graier W, Malle E, Sattler W. Lysophosphatidic acid receptor activation affects the C13NJ microglia cell line proteome leading to alterations in glycolysis, motility, and cytoskeletal architecture. Proteomics 2010; 10:141-58. [PMID: 19899077 DOI: 10.1002/pmic.200900195] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Microglia, the immunocompetent cells of the CNS, are rapidly activated in response to injury and microglia migration towards and homing at damaged tissue plays a key role in CNS regeneration. Lysophosphatidic acid (LPA) is involved in signaling events evoking microglia responses through cognate G protein-coupled receptors. Here we show that human immortalized C13NJ microglia express LPA receptor subtypes LPA(1), LPA(2), and LPA(3) on mRNA and protein level. LPA activation of C13NJ cells induced Rho and extracellular signal-regulated kinase activation and enhanced cellular ATP production. In addition, LPA induced process retraction, cell spreading, led to pronounced changes of the actin cytoskeleton and reduced cell motility, which could be reversed by inhibition of Rho activity. To get an indication about LPA-induced global alterations in protein expression patterns a 2-D DIGE/LC-ESI-MS proteomic approach was applied. On the proteome level the most prominent changes in response to LPA were observed for glycolytic enzymes and proteins regulating cell motility and/or cytoskeletal dynamics. The present findings suggest that naturally occurring LPA is a potent regulator of microglia biology. This might be of particular relevance in the pathophysiological context of neurodegenerative disorders where LPA concentrations can be significantly elevated in the CNS.
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Affiliation(s)
- Eva Bernhart
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Austria
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