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Gerke V, Gavins FNE, Geisow M, Grewal T, Jaiswal JK, Nylandsted J, Rescher U. Annexins-a family of proteins with distinctive tastes for cell signaling and membrane dynamics. Nat Commun 2024; 15:1574. [PMID: 38383560 PMCID: PMC10882027 DOI: 10.1038/s41467-024-45954-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Annexins are cytosolic proteins with conserved three-dimensional structures that bind acidic phospholipids in cellular membranes at elevated Ca2+ levels. Through this they act as Ca2+-regulated membrane binding modules that organize membrane lipids, facilitating cellular membrane transport but also displaying extracellular activities. Recent discoveries highlight annexins as sensors and regulators of cellular and organismal stress, controlling inflammatory reactions in mammals, environmental stress in plants, and cellular responses to plasma membrane rupture. Here, we describe the role of annexins as Ca2+-regulated membrane binding modules that sense and respond to cellular stress and share our view on future research directions in the field.
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Affiliation(s)
- Volker Gerke
- Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Von-Esmarch-Strasse 56, Münster, Germany.
| | - Felicity N E Gavins
- Department of Life Sciences, Centre for Inflammation Research and Translational Medicine (CIRTM), Brunel University London, Uxbridge, UK
| | - Michael Geisow
- The National Institute for Medical Research, Mill Hill, London, UK
- Delta Biotechnology Ltd, Nottingham, UK
| | - Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Jyoti K Jaiswal
- Center for Genetic Medicine Research, Children's National Research Institute, Children's National Research and Innovation Campus, Washington, DC, USA
- Department of Genomics and Precision Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Jesper Nylandsted
- Danish Cancer Institute, Strandboulevarden 49, Copenhagen, Denmark
- Department of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 21-25, Odense, Denmark
| | - Ursula Rescher
- Research Group Cellular Biochemistry, Institute of Molecular Virology, Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Von-Esmarch-Strasse 56, Münster, Germany.
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Li YZ, Wang YY, Huang L, Zhao YY, Chen LH, Zhang C. Annexin A Protein Family in Atherosclerosis. Clin Chim Acta 2022; 531:406-417. [PMID: 35562096 DOI: 10.1016/j.cca.2022.05.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 12/25/2022]
Abstract
Atherosclerosis, a silent chronic vascular pathology, is the cause of the majority of cardiovascular ischaemic events. Atherosclerosis is characterized by a series of deleterious changes in cellularity, including endothelial dysfunction, transmigration of circulating inflammatory cells into the arterial wall, pro-inflammatory cytokines production, lipid accumulation in the intima, vascular local inflammatory response, atherosclerosis-related cells apoptosis and autophagy. Proteins of Annexin A (AnxA) family, the well-known Ca2+ phospholipid-binding protein, have many functions in regulating inflammation-related enzymes and cell signaling transduction, thus influencing cell adhesion, migration, differentiation, proliferation and apoptosis. There is now accumulating evidence that some members of the AnxA family, such as AnxA1, AnxA2, AnxA5 and AnxA7, play major roles in the development of atherosclerosis. This article discusses the major roles of AnxA1, AnxA2, AnxA5 and AnxA7, and the multifaceted mechanisms of the main biological process in which they are involved in atherosclerosis. Considering these evidences, it has been proposed that AnxA are drivers- and not merely participator- on the road to atherosclerosis, thus the progression of atherosclerosis may be prevented by targeting the expression or function of the AnxA family proteins.
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Affiliation(s)
- Yong-Zhen Li
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan province, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Yan-Yue Wang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan province, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Liang Huang
- Research Laboratory of Translational Medicine, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Yu-Yan Zhao
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan province, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Lin-Hui Chen
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan province, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Chi Zhang
- Institute of Cardiovascular Disease, Key Lab for Arteriosclerology of Hunan province, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China.
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Upregulation of annexin A1 protein expression in the intratumoral vasculature of human non-small-cell lung carcinoma and rodent tumor models. PLoS One 2020; 15:e0234268. [PMID: 32497150 PMCID: PMC7272081 DOI: 10.1371/journal.pone.0234268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/21/2020] [Indexed: 12/23/2022] Open
Abstract
Annexin A1 (anxA1) is an immunomodulatory protein that has been proposed as a tumor vascular target for antitumor biologic agents, yet to date the vascular expression of anxA1 in specific tumor indications has not been systematically assessed. Attempts to evaluate vascular anxA1 expression by immunohistochemistry are complicated by a lack of available antibodies that are both specific for anxA1 and bind the N-terminal–truncated form of anxA1 that has previously been identified in tumor vasculature. To study the vascular expression pattern of anxA1 in non–small-cell lung carcinoma (NSCLC), we isolated an antibody capable of binding N-terminal–truncated anxA127-346 and employed it in immunohistochemical studies of human lung specimens. Lung tumor specimens evaluated with this antibody revealed vascular (endothelial) anxA1 expression in five of eight tumor samples studied, but no vascular anxA1 expression was observed in normal lung tissue. Tumor microarray analysis further demonstrated positive vascular staining for anxA1 in 30 of 80 NSCLC samples, and positive staining of neoplastic cells was observed in 54 of 80 samples. No correlation was observed between vascular and parenchymal anxA1 expression. Two rodent tumor models, B16-F10 and Py230, were determined to have upregulated anxA1 expression in the intratumoral vasculature. These data validate anxA1 as a potential vascular anti-tumor target in a subset of human lung tumors and identify rodent models which demonstrate anxA1 expression in tumor vasculature.
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Abstract
Ca2+ binding proteins (CBP) are of key importance for calcium to play its role as a pivotal second messenger. CBP bind Ca2+ in specific domains, contributing to the regulation of its concentration at the cytosol and intracellular stores. They also participate in numerous cellular functions by acting as Ca2+ transporters across cell membranes or as Ca2+-modulated sensors, i.e. decoding Ca2+ signals. Since CBP are integral to normal physiological processes, possible roles for them in a variety of diseases has attracted growing interest in recent years. In addition, research on CBP has been reinforced with advances in the structural characterization of new CBP family members. In this chapter we have updated a previous review on CBP, covering in more depth potential participation in physiopathological processes and candidacy for pharmacological targets in many diseases. We review intracellular CBP that contain the structural EF-hand domain: parvalbumin, calmodulin, S100 proteins, calcineurin and neuronal Ca2+ sensor proteins (NCS). We also address intracellular CBP lacking the EF-hand domain: annexins, CBP within intracellular Ca2+ stores (paying special attention to calreticulin and calsequestrin), proteins that contain a C2 domain (such as protein kinase C (PKC) or synaptotagmin) and other proteins of interest, such as regucalcin or proprotein convertase subtisilin kexins (PCSK). Finally, we summarise the latest findings on extracellular CBP, classified according to their Ca2+ binding structures: (i) EF-hand domains; (ii) EGF-like domains; (iii) ɣ-carboxyl glutamic acid (GLA)-rich domains; (iv) cadherin domains; (v) Ca2+-dependent (C)-type lectin-like domains; (vi) Ca2+-binding pockets of family C G-protein-coupled receptors.
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Moraes LA, Ampomah PB, Lim LHK. Annexin A1 in inflammation and breast cancer: a new axis in the tumor microenvironment. Cell Adh Migr 2018; 12:417-423. [PMID: 30122097 DOI: 10.1080/19336918.2018.1486143] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Targeting inflammation in cancer has shown promise to improve and complement current therapies. The tumor microenvironment plays an important role in cancer growth and metastasis and -tumor associated macrophages possess pro-tumoral and pro-metastatic properties. Annexin A1 (ANXA1) is an immune-modulating protein with diverse functions in the immune system and in cancer. In breast cancer, high ANXA1 expression leads to poor prognosis and increased metastasis. Here, we will review ANXA1 as a modulator of inflammation, and discuss its importance in breast cancer and highlight its new role in alternative macrophage activation in the tumor microenvironment. This review may provide an updated understanding into the various roles of ANXA1 which may enable future therapeutic developments for the treatment of breast cancer.
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Affiliation(s)
- Leonardo A Moraes
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore, & NUS Immunology Program, Life Sciences Institute, Centre for Life Sciences, National University of Singapore , Singapore
| | - Patrick B Ampomah
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore, & NUS Immunology Program, Life Sciences Institute, Centre for Life Sciences, National University of Singapore , Singapore
| | - Lina H K Lim
- a Department of Physiology , Yong Loo Lin School of Medicine, National University of Singapore, & NUS Immunology Program, Life Sciences Institute, Centre for Life Sciences, National University of Singapore , Singapore
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6
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Gobbetti T, Cooray SN. Annexin A1 and resolution of inflammation: tissue repairing properties and signalling signature. Biol Chem 2017; 397:981-93. [PMID: 27447237 DOI: 10.1515/hsz-2016-0200] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/14/2016] [Indexed: 01/03/2023]
Abstract
Inflammation is essential to protect the host from exogenous and endogenous dangers that ultimately lead to tissue injury. The consequent tissue repair is intimately associated with the fate of the inflammatory response. Restoration of tissue homeostasis is achieved through a balance between pro-inflammatory and anti-inflammatory/pro-resolving mediators. In chronic inflammatory diseases such balance is compromised, resulting in persistent inflammation and impaired healing. During the last two decades the glucocorticoid-regulated protein Annexin A1 (AnxA1) has emerged as a potent pro-resolving mediator acting on several facets of the innate immune system. Here, we review the therapeutic effects of AnxA1 on tissue healing and repairing together with the molecular targets responsible for these complex biological properties.
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Tu Y, Johnstone CN, Stewart AG. Annexin A1 influences in breast cancer: Controversies on contributions to tumour, host and immunoediting processes. Pharmacol Res 2017; 119:278-288. [PMID: 28212890 DOI: 10.1016/j.phrs.2017.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/08/2017] [Accepted: 02/08/2017] [Indexed: 12/20/2022]
Abstract
Annexin A1 is a multifunctional protein characterised by its actions in modulating the innate and adaptive immune response. Accumulating evidence of altered annexin A1 expression in many human tumours raises interest in its functional role in cancer biology. In breast cancer, altered annexin A1 expression levels suggest a potential influence on tumorigenic and metastatic processes. However, reports of conflicting results reveal a relationship that is much more complex than first conceptualised. In this review, we explore the diverse actions of annexin A1 on breast tumour cells and various host cell types, including stromal immune and structural cells, particularly in the context of cancer immunoediting.
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Affiliation(s)
- Yan Tu
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Melbourne, Australia
| | - Cameron N Johnstone
- Cancer & Inflammation Laboratory, Olivia Newton-John Cancer Research Institute, Heidelberg, Australia
| | - Alastair G Stewart
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Melbourne, Australia.
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de Jong R, Leoni G, Drechsler M, Soehnlein O. The advantageous role of annexin A1 in cardiovascular disease. Cell Adh Migr 2016; 11:261-274. [PMID: 27860536 DOI: 10.1080/19336918.2016.1259059] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The inflammatory response protects the human body against infection and injury. However, uncontrolled and unresolved inflammation can lead to tissue damage and chronic inflammatory diseases. Therefore, active resolution of inflammation is essential to restore tissue homeostasis. This review focuses on the pro-resolving molecule annexin A1 (ANXA1) and its derived peptides. Mechanisms instructed by ANXA1 are multidisciplinary and affect leukocytes as well as endothelial cells and tissue resident cells like macrophages and mast cells. ANXA1 has an outstanding role in limiting leukocyte recruitment and different aspects of ANXA1 as modulator of the leukocyte adhesion cascade are discussed here. Additionally, this review details the therapeutic relevance of ANXA1 and its derived peptides in cardiovascular diseases since atherosclerosis stands out as a chronic inflammatory disease with impaired resolution and continuous leukocyte recruitment.
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Affiliation(s)
- Renske de Jong
- a Institute for Cardiovascular Prevention , Ludwig-Maximilians University , Munich , Germany.,b Department of Pathology , Academic Medical Center, Amsterdam University , Amsterdam , the Netherlands
| | - Giovanna Leoni
- a Institute for Cardiovascular Prevention , Ludwig-Maximilians University , Munich , Germany.,b Department of Pathology , Academic Medical Center, Amsterdam University , Amsterdam , the Netherlands
| | - Maik Drechsler
- a Institute for Cardiovascular Prevention , Ludwig-Maximilians University , Munich , Germany.,b Department of Pathology , Academic Medical Center, Amsterdam University , Amsterdam , the Netherlands.,c DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance , Munich , Germany
| | - Oliver Soehnlein
- a Institute for Cardiovascular Prevention , Ludwig-Maximilians University , Munich , Germany.,b Department of Pathology , Academic Medical Center, Amsterdam University , Amsterdam , the Netherlands.,c DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance , Munich , Germany
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9
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Abstract
Annexin A1 (ANXA1) is a Ca(2+)-regulated phospholipid-binding protein involved in various cell processes. ANXA1 was initially widely studied in inflammation resolution, but its overexpression was later reported in a large number of cancers. Further in-depth investigations have revealed that this protein could have many roles in cancer progression and act at different levels (from cancer initiation to metastasis). This is partly due to the location of ANXA1 in different cell compartments. ANXA1 can be nuclear, cytoplasmic and/or membrane associated. This last location allows ANXA1 to be proteolytically cleaved and/or to become accessible to its cognate partners, the formyl-peptide receptors. Indeed, in some cancers, ANXA1 is found at the cell surface, where it stimulates formyl-peptide receptors to trigger oncogenic pathways. In the present review, we look at the different locations of ANXA1 and their association with the deregulated pathways often observed in cancers. We have specifically detailed the non-classic pathways of ANXA1 externalization, the significance of its cleavage and the role of the ANXA1-formyl-peptide receptor complex in cancer progression.
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Demonbreun AR, Allen MV, Warner JL, Barefield DY, Krishnan S, Swanson KE, Earley JU, McNally EM. Enhanced Muscular Dystrophy from Loss of Dysferlin Is Accompanied by Impaired Annexin A6 Translocation after Sarcolemmal Disruption. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:1610-22. [PMID: 27070822 DOI: 10.1016/j.ajpath.2016.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 01/20/2016] [Accepted: 02/11/2016] [Indexed: 02/03/2023]
Abstract
Dysferlin is a membrane-associated protein implicated in membrane resealing; loss of dysferlin leads to muscular dystrophy. We examined the same loss-of-function Dysf mutation in two different mouse strains, 129T2/SvEmsJ (Dysf(129)) and C57BL/6J (Dysf(B6)). Although there are many genetic differences between these two strains, we focused on polymorphisms in Anxa6 because these variants were previously associated with modifying a pathologically distinct form of muscular dystrophy and increased the production of a truncated annexin A6 protein. Dysferlin deficiency in the C57BL/6J background was associated with increased Evan's Blue dye uptake into muscle and increased serum creatine kinase compared to the 129T2/SvEmsJ background. In the C57BL/6J background, dysferlin loss was associated with enhanced pathologic severity, characterized by decreased mean fiber cross-sectional area, increased internalized nuclei, and increased fibrosis, compared to that in Dysf(129) mice. Macrophage infiltrate was also increased in Dysf(B6) muscle. High-resolution imaging of live myofibers demonstrated that fibers from Dysf(B6) mice displayed reduced translocation of full-length annexin A6 to the site of laser-induced sarcolemmal disruption compared to Dysf(129) myofibers, and impaired translocation of annexin A6 associated with impaired resealing of the sarcolemma. These results provide one mechanism by which the C57BL/6J background intensifies dysferlinopathy, giving rise to a more severe form of muscular dystrophy in the Dysf(B6) mouse model through increased membrane leak and inflammation.
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Affiliation(s)
| | - Madison V Allen
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - James L Warner
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - David Y Barefield
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
| | - Swathi Krishnan
- Department of Medicine, The University of Chicago, Chicago, Illinois
| | - Kaitlin E Swanson
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Judy U Earley
- Center for Genetic Medicine, Northwestern University, Chicago, Illinois
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11
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Amso Z, Cornish J, Brimble MA. Short Anabolic Peptides for Bone Growth. Med Res Rev 2016; 36:579-640. [DOI: 10.1002/med.21388] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/24/2016] [Accepted: 02/15/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Zaid Amso
- School of Chemical Sciences; The University of Auckland, 23 Symonds St; Auckland 1142 New Zealand
| | - Jillian Cornish
- Department of Medicine; The University of Auckland; Auckland 1010 New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences; The University of Auckland, 23 Symonds St; Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, School of Biological Sciences; The University of Auckland; Auckland 1142 New Zealand
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12
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Song X, Hu D, Zhong X, Wang N, Gu X, Wang T, Peng X, Yang G. Characterization of a Secretory Annexin in Echinococcus granulosus. Am J Trop Med Hyg 2016; 94:626-33. [PMID: 26787154 DOI: 10.4269/ajtmh.15-0452] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 12/01/2015] [Indexed: 01/22/2023] Open
Abstract
Cystic echinococcosis, caused by Echinococcus granulosus, is a widespread parasitic zoonosis causing economic loss and public health problems. Annexins are important proteins usually present in the plasma membrane, but previous studies have shown that an annexin B33 protein of E. granulosus (Eg-ANX) could be detected in the excretory/secretory products and cyst fluid. In this study, we cloned and characterized Eg-ANX. In silico analysis showed that the amino acid sequence of Eg-ANX was conserved and lacked any signal peptides. The phospholipid-binding activity of recombinant Eg-ANX (rEg-ANX) was tested; liposomes could bind to rEg-ANX only in the presence of Ca(2+). In addition, we performed western blotting and immunohistochemical analyses to further validate the secretory properties of Eg-ANX. The protein could be detected in the cyst fluid of E. granulosus and was also present in the intermediate host tissues, which suggested that Eg-ANX might play an important role in parasite-host interaction.
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Affiliation(s)
- Xingju Song
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Dandan Hu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Xiuqin Zhong
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Ning Wang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Tao Wang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Xuerong Peng
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an, China
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Abstract
Since an intact membrane is required for normal cellular homeostasis, membrane repair is essential for cell survival. Human genetic studies, combined with the development of novel animal models and refinement of techniques to study cellular injury, have now uncovered series of repair proteins highly relevant for human health. Many of the deficient repair pathways manifest in skeletal muscle, where defective repair processes result in myopathies or other forms of muscle disease. Dysferlin is a membrane-associated protein implicated in sarcolemmal repair and also linked to other membrane functions including the maintenance of transverse tubules in muscle. MG53, annexins, and Eps15 homology domain-containing proteins interact with dysferlin to form a membrane repair complex and similarly have roles in membrane trafficking in muscle. These molecular features of membrane repair are not unique to skeletal muscle, but rather skeletal muscle, due to its high demands, is more dependent on an efficient repair process. Phosphatidylserine and phosphatidylinositol 4,5-bisphosphate, as well as Ca(2+), are central regulators of membrane organization during repair. Given the importance of muscle health in disease and in aging, these pathways are targets to enhance muscle function and recovery from injury.
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Cysteine-rich secretory protein 3 plays a role in prostate cancer cell invasion and affects expression of PSA and ANXA1. Mol Cell Biochem 2015; 411:11-21. [PMID: 26369530 DOI: 10.1007/s11010-015-2564-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/03/2015] [Indexed: 01/21/2023]
Abstract
Cysteine-rich secretory protein 3 (CRISP-3) is upregulated in prostate cancer as compared to the normal prostate tissue. Higher expression of CRISP-3 has been linked to poor prognosis and hence it has been thought to act as a prognostic marker for prostate cancer. It is proposed to have a role in innate immunity but its role in prostate cancer is still unknown. In order to understand its function, its expression was stably knocked down in LNCaP cells. CRISP-3 knockdown did not affect cell viability but resulted in reduced invasiveness. Global gene expression changes upon CRISP-3 knockdown were identified by microarray analysis. Microarray data were quantitatively validated by evaluating the expression of seven candidate genes in three independent stable clones. Functional annotation of the differentially expressed genes identified cell adhesion, cell motility, and ion transport to be affected among other biological processes. Prostate-specific antigen (PSA, also known as Kallikrein 3) was the top most downregulated gene whose expression was also validated at protein level. Interestingly, expression of Annexin A1 (ANXA1), a known anti-inflammatory protein, was upregulated upon CRISP-3 knockdown. Re-introduction of CRISP-3 into the knockdown clone reversed the effect on invasiveness and also led to increased PSA expression. These results suggest that overexpression of CRISP-3 in prostate tumor may maintain higher PSA expression and lower ANXA1 expression. Our data also indicate that poor prognosis associated with higher CRISP-3 expression could be due to its role in cell invasion.
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Rego J, Moura A, Nouwens A, McGowan M, Boe-Hansen G. Seminal plasma protein profiles of ejaculates obtained by internal artificial vagina and electroejaculation in Brahman bulls. Anim Reprod Sci 2015; 160:126-37. [DOI: 10.1016/j.anireprosci.2015.07.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 07/26/2015] [Accepted: 07/31/2015] [Indexed: 12/20/2022]
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Chen C, Liu S, Liu Q, Niu J, Liu P, Zhao J, Jian H. An ANNEXIN-like protein from the cereal cyst nematode Heterodera avenae suppresses plant defense. PLoS One 2015; 10:e0122256. [PMID: 25849616 PMCID: PMC4388550 DOI: 10.1371/journal.pone.0122256] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 02/10/2015] [Indexed: 11/19/2022] Open
Abstract
Parasitism genes encoding secreted effector proteins of plant-parasitic nematodes play important roles in facilitating parasitism. An annexin-like gene was isolated from the cereal cyst nematode Heterodera avenae (termed Ha-annexin) and had high similarity to annexin 2, which encodes a secreted protein of Globodera pallida. Ha-annexin encodes a predicted 326 amino acid protein containing four conserved annexin domains. Southern blotting revealed that there are at least two homologies in the H. avenae genome. Ha-annexin transcripts were expressed within the subventral gland cells of the pre-parasitic second-stage juveniles by in situ hybridization. Additionally, expression of these transcripts were relatively higher in the parasitic second-stage juveniles by quantitative real-time RT-PCR analysis, coinciding with the time when feeding cell formation is initiated. Knockdown of Ha-annexin by method of barley stripe mosaic virus-based host-induced gene silencing (BSMV-HIGS) caused impaired nematode infections at 7 dpi and reduced females at 40 dpi, indicating important roles of the gene in parasitism at least in early stage in vivo. Transiently expression of Ha-ANNEXIN in onion epidermal cells and Nicotiana benthamiana leaf cells showed the whole cell-localization. Using transient expression assays in N. benthamiana, we found that Ha-ANNEXIN could suppress programmed cell death triggered by the pro-apoptotic mouse protein BAX and the induction of marker genes of PAMP-triggered immunity (PTI) in N. benthamiana. In addition, Ha-ANNEXIN targeted a point in the mitogen-activated protein kinase (MAPK) signaling pathway downstream of two kinases MKK1 and NPK1 in N. benthamiana.
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Affiliation(s)
- Changlong Chen
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Shusen Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
- Institute of Plant Protection and Agro-products Safety, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Qian Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Junhai Niu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, China
| | - Pei Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Jianlong Zhao
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Heng Jian
- Department of Plant Pathology, China Agricultural University, Beijing, China
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Qin C, Yang YH, May L, Gao X, Stewart AG, Tu Y, Woodman OL, Ritchie RH. Cardioprotective potential of annexin-A1 mimetics in myocardial infarction. Pharmacol Ther 2014; 148:47-65. [PMID: 25460034 DOI: 10.1016/j.pharmthera.2014.11.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 12/15/2022]
Abstract
Myocardial infarction (MI) and its resultant heart failure remains a major cause of death in the world. The current treatments for patients with MI are revascularization with thrombolytic agents or interventional procedures. These treatments have focused on restoring blood flow to the ischemic tissue to prevent tissue necrosis and preserve organ function. The restoration of blood flow after a period of ischemia, however, may elicit further myocardial damage, called reperfusion injury. Pharmacological interventions, such as antioxidant and Ca(2+) channel blockers, have shown premises in experimental settings; however, clinical studies have shown limited success. Thus, there is a need for the development of novel therapies to treat reperfusion injury. The therapeutic potential of glucocorticoid-regulated anti-inflammatory mediator annexin-A1 (ANX-A1) has recently been recognized in a range of systemic inflammatory disorders. ANX-A1 binds to and activates the family of formyl peptide receptors (G protein-coupled receptor family) to inhibit neutrophil activation, migration and infiltration. Until recently, studies on the cardioprotective actions of ANX-A1 and its peptide mimetics (Ac2-26, CGEN-855A) have largely focused on its anti-inflammatory effects as a mechanism of preserving myocardial viability following I-R injury. Our laboratory provided the first evidence of the direct protective action of ANX-A1 on myocardium, independent of inflammatory cells in vitro. We now review the potential for ANX-A1 based therapeutics to be seen as a "triple shield" therapy against myocardial I-R injury, limiting neutrophil infiltration and preserving both cardiomyocyte viability and contractile function. This novel therapy may thus represent a valuable clinical approach to improve outcome after MI.
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Affiliation(s)
- Chengxue Qin
- Baker IDI Heart & Diabetes Institute, Melbourne, Victoria, Australia; Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia
| | - Yuan H Yang
- Centre for Inflammatory Diseases Monash University and Monash Medical Centre, Clayton, Victoria, Australia
| | - Lauren May
- Department of Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, and Department of Pharmacology, Monash University, Parkville, Victoria, Australia
| | - Xiaoming Gao
- Baker IDI Heart & Diabetes Institute, Melbourne, Victoria, Australia
| | - Alastair G Stewart
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia
| | - Yan Tu
- Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia
| | - Owen L Woodman
- School of Medical Sciences, RMIT University, Bundoora 3083, Victoria, Australia
| | - Rebecca H Ritchie
- Baker IDI Heart & Diabetes Institute, Melbourne, Victoria, Australia; Department of Pharmacology and Therapeutics, The University of Melbourne, Parkville, Victoria, Australia; Department of Medicine, Monash University, Clayton, Victoria, Australia.
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Rego J, Crisp J, Moura A, Nouwens A, Li Y, Venus B, Corbet N, Corbet D, Burns B, Boe-Hansen G, McGowan M. Seminal plasma proteome of electroejaculated Bos indicus bulls. Anim Reprod Sci 2014; 148:1-17. [DOI: 10.1016/j.anireprosci.2014.04.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 04/16/2014] [Accepted: 04/30/2014] [Indexed: 12/30/2022]
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Geary LA, Nash KA, Adisetiyo H, Liang M, Liao CP, Jeong JH, Zandi E, Roy-Burman P. CAF-secreted annexin A1 induces prostate cancer cells to gain stem cell-like features. Mol Cancer Res 2014; 12:607-21. [PMID: 24464914 DOI: 10.1158/1541-7786.mcr-13-0469] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED Annexin A1 (AnxA1), a phospholipid-binding protein and regulator of glucocorticoid-induced inflammatory signaling, has implications in cancer. Here, a role for AnxA1 in prostate adenocarcinoma was determined using primary cultures and a tumor cell line (cE1), all derived from the conditional Pten deletion mouse model of prostate cancer. AnxA1 secretion by prostate-derived cancer-associated fibroblasts (CAF) was significantly higher than by normal prostate fibroblasts (NPF). Prostate tumor cells were sorted to enrich for epithelial subpopulations based on nonhematopoietic lineage, high SCA-1, and high or medium levels of CD49f. Compared with controls, AnxA1 enhanced stem cell-like properties in high- and medium-expression subpopulations of sorted cE1 and primary cells, in vitro, through formation of greater number of spheroids with increased complexity, and in vivo, through generation of more, larger, and histologically complex glandular structures, along with increased expression of p63, a basal/progenitor marker. The differentiated medium-expression subpopulations from cE1 and primary cells were most susceptible to gain stem cell-like properties as shown by increased spheroid and glandular formation. Further supporting this increased plasticity, AnxA1 was shown to regulate epithelial-to-mesenchymal transition in cE1 cells. These results suggest that CAF-secreted AnxA1 contributes to tumor stem cell dynamics via two separate but complementary pathways: induction of a dedifferentiation process leading to generation of stem-like cells from a subpopulation of cancer epithelial cells and stimulation of proliferation and differentiation of the cancer stem-like cells. IMPLICATIONS AnxA1 participates in a paradigm in which malignant prostate epithelial cells that are not cancer stem cells are induced to gain cancer stem cell-like properties.
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Affiliation(s)
- Lauren A Geary
- Department of Pathology, University of Southern California, Keck School of Medicine, 2011 Zonal Avenue, HMR 210B, Los Angeles, CA 90033.
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20
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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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21
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Mondéjar I, Acuña OS, Izquierdo-Rico MJ, Coy P, Avilés M. The oviduct: functional genomic and proteomic approach. Reprod Domest Anim 2012; 47 Suppl 3:22-9. [PMID: 22681295 DOI: 10.1111/j.1439-0531.2012.02027.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The mammalian oviduct is an anatomical part of the female reproductive tract, which plays several important roles in the events related to fertilization and embryo development. This review examines and compares several studies related to the proteomic and transcriptomic profile of the oviduct in different domestic animals. This information could be important for clarifying the role of oviductal factors in different events regulating fertilization and early embryo development, as well as for improving synthetic media for in vitro maturation/in vitro fertilization/embryo culture techniques (IVM/IVF/EC).
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Affiliation(s)
- I Mondéjar
- Department of Physiology, Veterinary Faculty, University of Murcia, Murcia, Spain
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Coy P, García-Vázquez FA, Visconti PE, Avilés M. Roles of the oviduct in mammalian fertilization. Reproduction 2012; 144:649-60. [PMID: 23028122 DOI: 10.1530/rep-12-0279] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The oviduct or Fallopian tube is the anatomical region where every new life begins in mammalian species. After a long journey, the spermatozoa meet the oocyte in the specific site of the oviduct named ampulla and fertilization takes place. The successful fertilization depends on several biological processes that occur in the oviduct some hours before this rendezvous and affect both gametes. Estrogen and progesterone, released from the ovary, orchestrate a series of changes by genomic and nongenomic pathways in the oviductal epithelium affecting gene expression, proteome, and secretion of its cells into the fluid bathing the oviductal lumen. In addition, new regulatory molecules are being discovered playing important roles in oviductal physiology and fertilization. The present review tries to describe these processes, building a comprehensive map of the physiology of the oviduct, to better understand the importance of this organ in reproduction. With this purpose, gamete transport, sperm and oocyte changes in the oviductal environment, and other interactions between gametes and oviduct are discussed in light of recent publications in the field.
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Affiliation(s)
- P Coy
- Department of Physiology, Faculty of Veterinary, University of Murcia, Campus Mare Nostrum, Campus de Espinardo, Murcia 30071, Spain.
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23
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Prydz K, Tveit H, Vedeler A, Saraste J. Arrivals and departures at the plasma membrane: direct and indirect transport routes. Cell Tissue Res 2012; 352:5-20. [DOI: 10.1007/s00441-012-1409-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 03/14/2012] [Indexed: 12/21/2022]
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24
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Aalberts M, van Dissel-Emiliani FMF, van Adrichem NPH, van Wijnen M, Wauben MHM, Stout TAE, Stoorvogel W. Identification of distinct populations of prostasomes that differentially express prostate stem cell antigen, annexin A1, and GLIPR2 in humans. Biol Reprod 2012; 86:82. [PMID: 22133690 DOI: 10.1095/biolreprod.111.095760] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In addition to sperm cells, seminal fluid contains various small membranous vesicles. These include prostasomes, membrane vesicles secreted by prostate epithelial cells. Prostasomes have been proposed to perform a variety of functions, including modulation of (immune) cell activity within the female reproductive tract and stimulation of sperm motility and capacitation. How prostasomes mediate such diverse functions, however, remains unclear. In many studies, vesicles from the seminal plasma have been categorized collectively as a single population of prostasomes; in fact, they more likely represent a heterogeneous mixture of vesicles produced by different reproductive glands and secretory mechanisms. We here characterized membranous vesicles from seminal fluid obtained from vasectomized men, thereby excluding material from the testes or epididymides. Two distinct populations of vesicles with characteristic sizes (56 ± 13 nm vs. 105 ± 25 nm) but similar equilibrium buoyant density (∼1.15 g/ml) could be separated by using the distinct rates with which they floated into sucrose gradients. Both types of vesicle resembled exosomes in terms of their buoyant density, size, and the presence of the ubiquitous exosome marker CD9. The protein GLIPR2 was found to be specifically enriched in the lumen of the smaller vesicles, while annexin A1 was uniquely associated with the surface of the larger vesicles. Prostate stem-cell antigen (PSCA), a prostate-specific protein, was present on both populations, thereby confirming their origin. PSCA was, however, absent from membrane vesicles in the seminal fluid of some donors, indicating heterogeneity of prostasome characteristics between individuals.
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Affiliation(s)
- Marian Aalberts
- Department of Biochemistry and Cell Biology, Utrecht University, Utrecht, The Netherlands
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25
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Parish LA, Colquhoun DR, Ubaida Mohien C, Lyashkov AE, Graham DR, Dinglasan RR. Ookinete-interacting proteins on the microvillar surface are partitioned into detergent resistant membranes of Anopheles gambiae midguts. J Proteome Res 2011; 10:5150-62. [PMID: 21905706 PMCID: PMC3208356 DOI: 10.1021/pr2006268] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lipid raft microdomains, a component of detergent resistant membranes (DRMs), are routinely exploited by pathogens during host-cell entry. Multiple membrane-surface proteins mediate Plasmodium ookinete invasion of the Anopheles midgut, a critical step in the parasite life cycle that is successfully targeted by transmission-blocking vaccines (TBV). Given that lipid rafts are a common feature of host-pathogen interactions, we hypothesized that they promote the partitioning of midgut surface proteins and thus facilitate ookinete invasion. In support of this hypothesis, we found that five of the characterized Anopheles TBV candidates, including the leading Anopheles TBV candidate, AgAPN1, are present in Anopheles gambiae DRMs. Therefore, to extend the repertoire of putative midgut ligands that can be targeted by TBVs, we analyzed midgut DRMs by tandem mass spectrometry. We identified 1452 proteins including several markers of DRMs. Since glycosylphosphotidyl inositol (GPI)-anchored proteins partition to DRMs, we characterized the GPI subproteome of An. gambiae midgut brush-border microvilli and found that 96.9% of the proteins identified in the GPI-anchored fractions were also present in DRMs. Our study vastly expands the number of candidate malarial TBV targets for subsequent analysis by the broader community and provides an inferred role for midgut plasmalemma microdomains in ookinete cell invasion.
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Affiliation(s)
- Lindsay A Parish
- W. Harry Feinstone Department of Molecular Microbiology & Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
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26
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Abstract
Unconventional secretory proteins represent a subpopulation of extracellular factors that are exported from eukaryotic cells by mechanisms that do not depend on the endoplasmic reticulum and the Golgi complex. Various pathways have been implicated in unconventional secretion including those involving intracellular membrane-bound intermediates and others that are based on direct protein translocation across plasma membranes. Interleukin 1β (IL1β) and fibroblast growth factor 2 (FGF2) are classical examples of unconventional secretory proteins with IL1β believed to be present in intracellular vesicles prior to secretion. By contrast, FGF2 represents an example of a non-vesicular mechanism of unconventional secretion. Here, the author discusses the current knowledge about the molecular machinery being involved in FGF2 secretion. To reveal both differential and common requirements, this review further aims at a comprehensive comparison of this mechanism with other unconventional secretory processes. In particular, a potentially general role of tyrosine phosphorylation as a regulatory signal in unconventional protein secretion will be discussed.
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Affiliation(s)
- Walter Nickel
- Heidelberg University Biochemistry Center, University of Heidelberg, Heidelberg, Germany.
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27
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Yamaguchi M, Kokai Y, Imai SI, Utsumi K, Matsumoto K, Honda H, Mizue Y, Momma M, Maeda T, Toyomasu S, Ito YM, Kobayashi S, Hashimoto E, Saito T, Sohma H. Investigation of annexin A5 as a biomarker for Alzheimer's disease using neuronal cell culture and mouse model. J Neurosci Res 2011; 88:2682-92. [PMID: 20648654 DOI: 10.1002/jnr.22427] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Alzheimer's disease (AD) differs from other forms of dementia in its relation to amyloid beta peptide (Abeta). Abeta, a proteolytic product of amyloid precursor proteins (APP), has a toxic effect on neuronal cells, which involves perturbation of their Ca(2+) homeostasis. This effect implies that changes of protein expression in neuronal cells with calcium stress should provide a molecular marker for this disease. In the present study, we used the supernatant from a neuronal cell culture after incubation with or without Abeta and isolated a Ca(2+)-dependent acidic phospholipid binding fraction to perform a proteomic study. Several unique proteins were identified after incubation with Abeta. We focused on annexin A5, among these proteins, because it binds both Ca(2+) and lipids likely to be involved in calcium homeostasis. Tg2576 transgenic mice (AD model) overexpressing mutant human APP showed a significant increase of annexin A5 in the brain cortex but not in other organs, including liver, kidney, lung, and intestine. In human plasma samples, the level of annexin A5 was significantly increased in a proportion of AD patients compared with a control group (P < 0.0001 in the logistic regression analysis). From the receiver operating characteristic (ROC) curve with plasma annexin A5 concentrations, the mean area under the curve (AUC 0.898) suggests that annexin A5 is a favorable marker for AD.
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Affiliation(s)
- Mami Yamaguchi
- Department of Biomedical Engineering, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
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28
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Shin MK, Jang YH, Yoo HJ, Kang DW, Park MH, Kim MK, Song JH, Kim SD, Min G, You HK, Choi KY, Bae YS, Min DS. N-formyl-methionyl-leucyl-phenylalanine (fMLP) promotes osteoblast differentiation via the N-formyl peptide receptor 1-mediated signaling pathway in human mesenchymal stem cells from bone marrow. J Biol Chem 2011; 286:17133-43. [PMID: 21372136 DOI: 10.1074/jbc.m110.197772] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Binding of N-formyl-methionyl-leucyl-phenylalanine (fMLP) to its specific cell surface receptor, N-formyl peptide receptor (FPR), triggers different cascades of biochemical events, eventually leading to cellular activation. However, the physiological role of fMLP and FPR during differentiation of mesenchymal stem cells is unknown. In this study, we attempted to determine whether fMLP regulates differentiation of mesenchymal stem cells derived from bone marrow. Analysis by quantitative-PCR and flow cytometry showed significantly increased expression of FPR1, but not FPR2 and FPR3, during osteoblastic differentiation. fMLP, a specific ligand of FPR1, promotes osteoblastic commitment and suppresses adipogenic commitment under differentiation conditions. Remarkably, fMLP-stimulated osteogenesis is associated with increased expression of osteogenic markers and mineralization, which were blocked by cyclosporine H, a selective FPR1 antagonist. In addition, fMLP inhibited expression of peroxisome proliferator-activated receptor-γ1, a major regulator of adipocytic differentiation. fMLP-stimulated osteogenic differentiation was mediated via FPR1-phospholipase C/phospholipase D-Ca(2+)-calmodulin-dependent kinase II-ERK-CREB signaling pathways. Finally, fMLP promoted bone formation in zebrafish and rabbits, suggesting its physiological relevance in vivo. Collectively, our findings provide novel insight into the functional role of fMLP in bone biology, with important implications for its potential use as a therapeutic agent for treatment of bone-related disorders.
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Affiliation(s)
- Min Kyoung Shin
- Department of Molecular Biology, College of Natural Science, Pusan National University, 30 Jangjeon Dong, Geumjeong gu, Busan 609-735, Korea
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29
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Nagaoka S, Takata Y, Kato K. Identification of two arginases generated by alternative splicing in the silkworm, Bombyx mori. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2011; 76:97-113. [PMID: 21136528 DOI: 10.1002/arch.20407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Arginase (EC 3.5.3.1) catalyzes the hydrolysis of arginine to ornithine and urea. Here, we have cloned two arginase cDNAs from the silkworm, Bombyx mori. The analysis of exon/intron structures showed that the two mRNAs named bmarg-r and bmarg-f were generated from a single gene by alternative usage of exons. The bmarg-r and bmarg-f were predicted to encode almost the same amino acid sequences, except that the latter had additional ten N-terminal residues. Recombinant bmARG-r and bmARG-f in Escherichia coli cell lysates were roughly similar to each other in enzymatic characteristics, which did not show large difference from those of arginases assayed by using tissue extracts. Differential RT-PCR experiments and tissue distribution analyses of arginase activity indicated that the bmarg-r gene is expressed in the male reproductive organs, especially in the glandula lacteola and vesicular seminalis, from which it is secreted to the seminal fluid and transferred to the female during copulation, whereas the bmarg-f gene is expressed in the larval and adult nonreproductive organs including the fat body and muscle, where the produced arginase proteins are considered to stay in the cells. Thus, the two silkworm arginase isoforms may have a difference in whether or not the product is excreted out of the cells in which it is synthesized.
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Affiliation(s)
- Sumiharu Nagaoka
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan.
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Perretti M, Dalli J. Exploiting the Annexin A1 pathway for the development of novel anti-inflammatory therapeutics. Br J Pharmacol 2010; 158:936-46. [PMID: 19845684 DOI: 10.1111/j.1476-5381.2009.00483.x] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The appreciation that the inflammatory reaction does not 'spontaneously' finish, but rather that inflammatory resolution is an active phenomenon brought about by endogenous anti-inflammatory agonists opens multiple opportunities for a reassessment of the complexity of inflammation and its main mediators. This review dwells on one of these pathways, the one centred around the glucocorticoid-regulated protein Annexin A1 and its G protein-coupled receptor. In recent years, much of the knowledge detailing the processes by which Annexin A1 expresses its anti-inflammatory role on innate immunity has been produced. Moreover, the generation of the Annexin A1 null mouse colony has provided important proof-of-concept experiments demonstrating the inhibitory properties of this mediator in the context of inflammatory and/or tissue-injury models. Therefore, Annexin A1 acts as a pivotal homeostatic mediator, where if absent, inflammation would overshoot and be prolonged. This new understanding scientific information could guide us onto the exploitation of the biological properties of Annexin A1 and its receptor to instigate novel drug discovery programmes for anti-inflammatory therapeutics. This line of research relies on the assumption that anti-inflammatory drugs designed upon endogenous anti-inflammatory mediators would be burdened by a lower degree of secondary effects as these agonists would be mimicking specific pathways activated in our body for safe disposal of inflammation. We believe that the next few years will produce examples of such new drugs and the validity of this speculation could then be assessed.
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Affiliation(s)
- Mauro Perretti
- The William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, Charterhouse Square, London, UK.
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31
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Comparative analysis of annexin-1 in neuroepithelial tumors shows altered expression with the grade of malignancy but is not associated with survival. Mod Pathol 2009; 22:1600-11. [PMID: 19767728 DOI: 10.1038/modpathol.2009.132] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In various types of cancer, the expression of members of the annexin family of calcium- and phospholipid-binding anti-inflammatory proteins is dysregulated. Annexin-1 (ANXA1, lipocortin-1) is involved in proliferation, differentiation and apoptosis. It serves as a substrate for the epidermal growth factor receptor (EGFR), which is frequently amplified in primary gliomas. It is unclear how annexin-1 is expressed in various neuroepithelial tumors, and whether there is any association with tumor malignancy or survival. We studied annexin-1 expression in 394 glial neoplasms of all grades of malignancy and 81 normal brain samples by immunohistochemistry using tissue microarrays. The results were validated using western blot and reverse transcription-PCR (RT-PCR). In the normal human brain, the expression of annexin-1 is limited to ependymal cells and subependymal astrocytes, but is also upregulated in reactive astrocytes. Ependymomas and astrocytomas showed significantly higher mean annexin-1 expression levels in the cytoplasm compared with oligodendrogliomas (both: P<0.0001). In addition, nuclear staining of annexin-1 in oligodendroglial tumor cells was significantly reduced (P=0.0002), which may be used as a diagnostic tool for differentiating between astrocytomas and oligodendrogliomas. Although annexin-1 expression in ependymomas decreased with the grade of malignancy, diffuse astrocytomas showed a significant increase in cytoplasmic annexin-1-positive tumor cells. However, survival analysis showed that the expression of annexin-1 is not associated with patient survival. Similar to the EGFR amplification profile, primary glioblastomas had a higher annexin-1 expression level compared with secondary glioblastomas. Thus, annexin-1 upregulation in astrocytomas may contribute to tumor progression and its expression profile is similar to its substrate, EGFR, suggesting a possible regulation thereof.
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32
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Teijeiro JM, Ignotz GG, Marini PE. Annexin A2 is involved in pig (Sus scrofa)sperm-oviduct interaction. Mol Reprod Dev 2009; 76:334-41. [DOI: 10.1002/mrd.20958] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Calcium-dependent proapoptotic effect of Taenia solium metacestodes annexin B1 on human eosinophils: A novel strategy to prevent host immune response. Int J Biochem Cell Biol 2008; 40:2151-63. [DOI: 10.1016/j.biocel.2008.02.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2007] [Revised: 01/30/2008] [Accepted: 02/18/2008] [Indexed: 01/22/2023]
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34
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Ignotz GG, Cho MY, Suarez SS. Annexins Are Candidate Oviductal Receptors for Bovine Sperm Surface Proteins and Thus May Serve to Hold Bovine Sperm in the Oviductal Reservoir1. Biol Reprod 2007; 77:906-13. [PMID: 17715429 DOI: 10.1095/biolreprod.107.062505] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The sperm of eutherian mammals are held in a storage reservoir in the caudal segment of the oviduct by binding to the mucosal epithelium. The reservoir serves to maintain the fertility of sperm during storage and to reduce the incidence of polyspermic fertilization. Bovine sperm bind to the epithelium via seminal vesicle secretory proteins in the bovine seminal plasma protein (BSP) family, namely, PDC109 (BSPA1/A2), BSPA3, and BSP30K, which coat the sperm head. Our objective was to identify the receptors for bull sperm on the oviductal epithelium. Proteins extracted from apical plasma membrane preparations of bovine oviductal epithelium were subjected to affinity purification using purified BSPs bound to corresponding antibodies conjugated to Protein A agarose beads. Oviductal protein bands of approximately 34 and 36 kDa were eluted by EGTA from the beads and identified by tandem mass spectrometry as annexins (ANXAs) 1, 2, 4, and 5. Subsequently, antibodies to each of the ANXAs were found to inhibit sperm binding to explants of oviductal epithelium. Anti-ANXA antibodies labeled the apical surfaces and cilia of the mucosal epithelium in sections of bovine oviduct. Western blots confirmed the presence of ANXAs in apical plasma membranes. Because fucose had been determined to be a critical component of the oviductal receptor, the ANXAs were immunoprecipitated from solubilized apical plasma membranes and were probed with Lotus tetragonolobus lectin to verify the presence of fucose. Thus, these ANXAs are strong candidates for the sperm receptors on bovine oviductal epithelium.
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Affiliation(s)
- George G Ignotz
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
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Translocation of annexin B1 in response to the stimulation of PMA and ionomycin in cervical cancer cells. Cell Biol Int 2007; 32:121-7. [PMID: 17936648 DOI: 10.1016/j.cellbi.2007.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2007] [Revised: 06/28/2007] [Accepted: 08/27/2007] [Indexed: 11/21/2022]
Abstract
Annexin B1 is a novel member of the annexin superfamily which was isolated from a Cysticercus cellulosae cDNA library. To investigate the physiological roles of annexin B1, we firstly performed immunohistochemical analysis on frozen Cysticercus cellulosae sections and found that annexin B1 was present not only in the tegument of the bladder wall, but also in the host-derived inflammatory layer; In addition, ELISA analysis revealed that annexin B1 could be detected in the cystic fluid of Cysticercus cellulosae and the sera of pigs with cysticercosis. These findings indicated that annexin B1 might be a secretary protein. We further constructed a pEGFP-annexin B1 plasmid and transfected it into SiHa cells. We found that GFP-annexin B1 was stimulated to translocate to the plasma membrane by phorbol 12-myristate 13-acetate (PMA). By contrast, it was induced to distribute at the plasma and nuclear membranes by treatment with calcium ionophore ionomycin. PMA increased annexin B1 membrane binding, which might facilitate exocytosis. Moreover, translocation of the protein to the plasma and nuclear membranes after stimulated by ionomycin, was predicted to be related to an additional function.
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Kim MK, Min DS, Park YJ, Kim JH, Ryu SH, Bae YS. Expression and functional role of formyl peptide receptor in human bone marrow-derived mesenchymal stem cells. FEBS Lett 2007; 581:1917-22. [PMID: 17442310 DOI: 10.1016/j.febslet.2007.03.078] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 03/27/2007] [Accepted: 03/27/2007] [Indexed: 01/16/2023]
Abstract
We investigated the expression of formyl peptide receptor (FPR) and its functional role in human bone marrow-derived mesenchymal stem cells (MSCs). We analyzed the expression of FPR by using ligand-binding assay with radio-labeled N-formyl-met-leu-phe (fMLF), and found that MSCs express FPR. FMLF stimulated intracellular calcium increase, mitogen-activated protein kinases activation, and Akt activation, which were mediated by G(i) proteins. MSCs were chemotactically migrated to fMLF. FMLF-induced MSC chemotaxis was also completely inhibited by pertussis toxin, LY294002, and PD98059, indicating the role of G(i) proteins, phosphoinositide 3-kinase, and extracellular signal regulated protein kinase. N-terminal fragment of annexin-1, Anx-1(2-26), an endogenous agonist for FPR, also induced chemotactic migration of MSCs. Thus MSCs express functional FPR, suggesting a new (patho)physiological role of FPR and its ligands in regulating MSC trafficking during induction of injured tissue repair.
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Affiliation(s)
- Mi-Kyoung Kim
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 602-714, Republic of Korea
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Abstract
The annexin superfamily consists of 13 calcium or calcium and phospholipid binding proteins with a significant degree of biological and structural homology (40-60%). First described in the late 1970s and subsequently referred to as macrocortin, renocortin, lipomodulin, lipocortin-1, and more recently Annexin 1, this 37 kDa calcium and phospholipid binding protein is a strong inhibitor of glucocorticoid-induced eicosanoid synthesis and PLA2. Recent interest in the biological activity of this intriguing molecule has unraveled important functional attributes of Annexin 1 in a variety of inflammatory pathways, on cell proliferation machinery, in the regulation of cell death signaling, in phagocytic clearance of apoptosing cells, and most importantly in the process of carcinogenesis. Here we attempt to present a short review on these diverse biological activities of an interesting and important molecule, which could be a potential target for novel therapeutic intervention in a host of disease states.
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Affiliation(s)
- Lina H K Lim
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
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Voges D, Berendes R, Demange P, Benz J, Göttig P, Liemann S, Huber R, Burger A. Structure and function of the ion channel model system annexin V. ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY 2006; 71:209-39. [PMID: 8644490 DOI: 10.1002/9780470123171.ch4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- D Voges
- Abteilung Strukturforschung, Max-Planck-Institut für Biochemie, Martinsried, Germany
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Naschberger E, Lubeseder-Martellato C, Meyer N, Gessner R, Kremmer E, Gessner A, Stürzl M. Human guanylate binding protein-1 is a secreted GTPase present in increased concentrations in the cerebrospinal fluid of patients with bacterial meningitis. THE AMERICAN JOURNAL OF PATHOLOGY 2006; 169:1088-99. [PMID: 16936281 PMCID: PMC1698817 DOI: 10.2353/ajpath.2006.060244] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Interferon-gamma-induced GTPases are key to the protective immunity against microbial and viral pathogens. As yet, the cell interior has been regarded as the exclusive residence of these proteins. Here we show that a member of this group, human guanylate binding protein-1 (hGBP-1), is secreted from cells. Secretion occurred in the absence of a leader peptide via a nonclassical, likely ABC transporter-dependent, pathway, was independent of hGBP-1 GTPase activity and isoprenylation, and did not require additional interferon-gamma-induced factors. Interestingly, hGBP-1 was only secreted from endothelial cells but not from any of the nine different cell types tested. Clinically most important was the detection of significantly (P<0.001, Mann-Whitney U-test) increased hGBP-1 concentrations in the cerebrospinal fluid of patients with bacterial meningitis (n=32) as compared to control patients (n=74). In this first report of a secreted GTPase, we demonstrate that secreted hGBP-1 may be a useful surrogate marker for diagnosis of bacterial meningitis.
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Affiliation(s)
- Elisabeth Naschberger
- Department of Surgery, Division of Molecular and Experimental Surgery, Institute for Clinical Microbiology, Immunology, and Hygiene, Munich, Germany
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40
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Rescher U, Goebeler V, Wilbers A, Gerke V. Proteolytic cleavage of annexin 1 by human leukocyte elastase. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2006; 1763:1320-4. [PMID: 17023068 DOI: 10.1016/j.bbamcr.2006.08.041] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Revised: 08/14/2006] [Accepted: 08/26/2006] [Indexed: 11/17/2022]
Abstract
Annexin 1 has been shown to participate through its unique N-terminal domain in the recruitment and activation of leukocytes at sites of inflammation. Peptides derived from this domain are true mimetics of the annexin 1 action in all inflammation models tested and most likely serve as the active entities generated at sites of inflammation. To elucidate mechanisms underlying peptide generation we used isolated blood leukocytes and endothelial cell monolayers. We show that following endothelial adhesion, annexin 1 was externalized from leukocytes and rapidly cleaved. Addition of purified annexin 1 to degranulating leukocytes resulted in the truncation of annexin 1, which seemed to depend on the proteolytic activity of human leukocyte elastase (HLE). The capacity of elastase to proteolytically cleave annexin 1 was confirmed using both purified annexin 1 and HLE. The identification of annexin 1 as a substrate for HLE supports the model in which annexin 1 participates in regulating leukocyte emigration into inflamed tissue through N-terminal peptides generated at inflammatory sites.
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Affiliation(s)
- Ursula Rescher
- Center for Molecular Biology of Inflammation, Institute for Medical Biochemistry, von Esmarch-Strasse 56, 48149 Münster, Germany
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41
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Solito E, Christian HC, Festa M, Mulla A, Tierney T, Flower RJ, Buckingham JC. Post-translational modification plays an essential role in the translocation of annexin A1 from the cytoplasm to the cell surface. FASEB J 2006; 20:1498-500. [PMID: 16720734 PMCID: PMC2049060 DOI: 10.1096/fj.05-5319fje] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Annexin A1 (ANXA1) has an important role in cell-cell communication in the host defense and neuroendocrine systems. In both systems, its actions are exerted extracellularly via membrane-bound receptors on adjacent sites after translocation of the protein from the cytoplasm to the cell surface of adjacent cells. This study used molecular, microscopic, and pharmacological approaches to explore the mechanisms underlying the cellular exportation of ANXA1 in TtT/GF (pituitary folliculo-stellate) cells. LPS caused serine-phosphorylation of ANXA1 (ANXA1-S27-PO4) and translocation of the phosphorylated protein to the cell membrane. The fundamental requirement of phosphorylation for membrane translocation was confirmed by immunofluorescence microscopy on cells transfected with wild-type or mutated (S27/A) ANXA1 constructs tagged with enhanced green fluorescence protein. The trafficking of ANXA1-S27-PO4 to the cell surface was dependent on PI3-kinase and MAP-kinase. It also required HMG-coenzyme A and myristoylation. The effects of HMG-coenzyme A blockade were overcome by mevalonic acid (the product of HMG-coenzyme A) and farnesyl-pyrophosphate but not by geranyl-geranylpyrophosphate or cholesterol. Together, these results suggest that serine-27 phosphorylation is essential for the translocation of ANXA1 across the cell membrane and also identify a role for isoprenyl lipids. Such lipids could target consensus sequences in ANXA1. Alternatively, they may target other proteins in the signal transduction cascade (e.g., transporters).
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Affiliation(s)
- E Solito
- Department of Cellular and Molecular Neuroscience, Division of Neuroscience and Mental Health, Imperial College London, Hammersmith Campus, Du Cane Rd., London W12 0NN, UK
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Kotsyfakis M, Vontas J, Siden-Kiamos I, Louis C. The annexin gene family in the malaria mosquito Anopheles gambiae. INSECT MOLECULAR BIOLOGY 2005; 14:555-62. [PMID: 16164611 DOI: 10.1111/j.1365-2583.2005.00586.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Annexins belong to a class of proteins that are known to bind to, and hold together structures such as membranes. Interestingly, Anopheles gambiae (and Drosophila melanogaster) annexins bind Plasmodium ookinetes in vitro. In the malaria mosquito three genes in two cytogenetic loci on chromosome arm 2R encode annexin homologues; their expression, monitored by quantitative real-time PCR during mosquito development, as well as in various tissues, revealed little fluctuation in patterns of expression during all life stages. A different mode of transcription was observed for the three genes in the midgut in relation to the uptake of a blood meal. Immunohistochemical staining of midguts and ovaries with polyclonal anti-annexin sera reveals that the Anopheles polypeptides are present in the epithelial cells of both tissues and associated with the plasma membrane.
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Affiliation(s)
- M Kotsyfakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Vassilika Vouton, Heraklion, Crete, Greece
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Gavins FNE, Sawmynaden P, Chatterjee BE, Perretti M. A twist in anti-inflammation: annexin 1 acts via the lipoxin A4 receptor. Prostaglandins Leukot Essent Fatty Acids 2005; 73:211-9. [PMID: 15982865 DOI: 10.1016/j.plefa.2005.05.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The inflammatory response is a life-saving protective process mounted by the body to overcome pathogen infection and injury; however, in chronic inflammatory pathologies this response can become deregulated. The existence of specialized anti-inflammatory pathways/mediators that operate in the body to down-regulate inflammation have now emerged. Thus, persistence of inflammation leading to pathology could be due to malfunctioning of one or more of these counter-regulatory pathways. Here we focus on one of them, the anti-inflammatory mediator annexin 1, and provide an update on its inhibitory effects upon the leukocyte trafficking process. In particular, recent evidence that receptors of the formyl-peptide family, which includes also the lipoxin A4 receptor, could be the annexin 1 receptor(s) in the context of anti-inflammation might provide new avenues for exploiting this pathway for drug discovery.
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Affiliation(s)
- F N E Gavins
- Centre for Biochemical Pharmacology, William Harvey Research Institute, Bart's and The London, Queen Mary School of Medicine and Dentistry, Charterhouse Square, London EC1M 6BQ, UK
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Patel DR, Isas JM, Ladokhin AS, Jao CC, Kim YE, Kirsch T, Langen R, Haigler HT. The conserved core domains of annexins A1, A2, A5, and B12 can be divided into two groups with different Ca2+-dependent membrane-binding properties. Biochemistry 2005; 44:2833-44. [PMID: 15723527 DOI: 10.1021/bi047642+] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The hallmark of the annexin super family of proteins is Ca(2+)-dependent binding to phospholipid bilayers, a property that resides in the conserved core domain of these proteins. Despite the structural similarity between the core domains, studies reported herein showed that annexins A1, A2, A5, and B12 could be divided into two groups with distinctively different Ca(2+)-dependent membrane-binding properties. The division correlates with the ability of the annexins to form Ca(2+)-dependent membrane-bound trimers. Site-directed spin-labeling and Forster resonance energy transfer experimental approaches confirmed the well-known ability of annexins A5 and B12 to form trimers, but neither method detected self-association of annexin A1 or A2 on bilayers. Studies of chimeras in which the N-terminal and core domains of annexins A2 and A5 were swapped showed that trimer formation was mediated by the core domain. The trimer-forming annexin A5 and B12 group had the following Ca(2+)-dependent membrane-binding properties: (1) high Ca(2+) stoichiometry for membrane binding ( approximately 12 mol of Ca(2+)/mol of protein); (2) binding to membranes was very exothermic (> -60 kcal/ mol of protein); and (3) binding to bilayers that were in the liquid-crystal phase but not to bilayers in the gel phase. In contrast, the nontrimer-forming annexin A1 and A2 group had the following Ca(2+)-dependent membrane-binding properties: (1) lower Ca(2+) stoichiometry for membrane binding (<or=4 mol of Ca(2+)/mol of protein); (2) binding to membranes was relatively less exothermic (< -33 kcal/ mol of protein); and (3) binding to bilayers that were in either the liquid-crystal phase or gel phase. The biological implications of this subdivision are discussed.
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Affiliation(s)
- Darshana R Patel
- Department of Physiology and Biophysics, University of California, 19172 Jamboree, Irvine, California 92697, USA
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Abstract
Annexins are a well-known multigene family of Ca(2+)-regulated phospholipid-binding and membrane-binding proteins. Recent work employing annexin-knockdown or - knockout models has provided new insights into the biological functions of different annexin proteins. Transient annexin depletion by RNA interference and the expression of dominant-negative mutant proteins has revealed roles for the proteins in membrane processes ranging from the control of membrane structure to certain membrane transport phenomena. Although such functions correlate well with the ability of annexins to interact with cellular membranes in a reversible and regulated manner, some activities are membrane independent, probably because annexins can also engage in specific protein-protein interactions. Among other things, this is evident in annexin A1- and A2-knockout mice, which show impaired regulation of neutrophil extravasation and defects in plasmin generation, respectively.
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Affiliation(s)
- Ursula Rescher
- Institute of Medical Biochemistry, Center for Molecular Biology of Inflammation, University of Münster, von-Esmarch-Strasse 56, Münster 48149, Germany
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46
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Gotoh M, Takamoto Y, Kurosaka K, Masuda J, Ida M, Satoh A, Takayama E, Kojima-Aikawa K, Kobayashi Y, Matsumoto I. Annexins I and IV inhibit Staphylococcus aureus attachment to human macrophages. Immunol Lett 2004; 98:297-302. [PMID: 15860231 DOI: 10.1016/j.imlet.2004.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 12/01/2004] [Accepted: 12/04/2004] [Indexed: 11/26/2022]
Abstract
Annexins are a family of proteins that bind to phospholipids and carbohydrates in a calcium-dependent manner. They are present in a variety of body fluids. Previous studies have shown that annexins have anti-inflammatory activities for lipid A of Gram-negative bacteria. The present study investigated the effect of annexins on interaction between Gram-positive bacteria and immune cells such as macrophages. Annexins I and IV bound to lipoteichoic acids which are surface molecules on Gram-positive bacteria. Binding of annexins I and IV to whole Staphylococcus aureus (S. aureus) were observed and these bindings were inhibited by lipoteichoic acid from S. aureus. Moreover, annexins I and IV suppressed the attachment of S. aureus to phorbol 12-myristate 13-acetate-treated THP-1 cells (human macrophages). These results suggest that annexins I and IV have ligand specificities toward foreign substances, and that the annexins might have some anti-inflammatory property for Gram-positive bacteria.
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Affiliation(s)
- Mari Gotoh
- Graduate School of Humanities and Sciences, Ochanomizu University, Otsuka 2-1-1, Bunkyo-ku, Tokyo 112-8610, Japan
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Ravassa S, Bennaghmouch A, Kenis H, Lindhout T, Hackeng T, Narula J, Hofstra L, Reutelingsperger C. Annexin A5 down-regulates surface expression of tissue factor: a novel mechanism of regulating the membrane receptor repertoir. J Biol Chem 2004; 280:6028-35. [PMID: 15576370 DOI: 10.1074/jbc.m411710200] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Phosphatidylserine (PtdSer) is exposed on the external leaflet of the plasma membrane during apoptosis. The protein annexin A5 (anxA5) shows high affinity for PtdSer. When anxA5 binds to the PtdSer-expressing membranes during apoptosis, it crystallizes as an extended two-dimensional network and activates thereby a novel portal of cell entry that results in the internalization of the PtdSer-expressing membrane patches. This novel pathway of cell entry is potentially involved in the regulation of the surface expression of membrane receptors. In this study we report the regulation of surface expression of the initiator of blood coagulation tissue factor (TF) by this novel pathway of cell entry. AnxA5 induces the internalization of tissue factor expressed on the surface of apoptotic THP-1 macrophages. This down-regulation depends on the abilities of anxA5 to bind to PtdSer and to form a two-dimensional crystal at the membrane. We furthermore show that THP-1 cells produce and externalize anxA5 that cause the internalization of TF in an autocrine type of mechanism. We extended our in vitro work to the in vivo situation and show in a mouse model that anxA5 causes the down-regulation of TF expression by smooth muscle cells of the media of the carotid artery that was mechanically injured. In conclusion, anxA5 down-regulates surface-expressed TF by activating the novel portal of cell entry. This mechanism may be part of a more general autocrine function of anxA5 to regulate the plasma membrane receptor repertoir under stress conditions associated with the surface expression of PtdSer.
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Affiliation(s)
- Susana Ravassa
- Department of Biochemistry, University of Maastricht, P. O. Box 616, 6200 MD Maastricht, The Netherlands
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Deora AB, Kreitzer G, Jacovina AT, Hajjar KA. An Annexin 2 Phosphorylation Switch Mediates p11-dependent Translocation of Annexin 2 to the Cell Surface. J Biol Chem 2004; 279:43411-8. [PMID: 15302870 DOI: 10.1074/jbc.m408078200] [Citation(s) in RCA: 181] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Annexin 2 is a profibrinolytic co-receptor for plasminogen and tissue plasminogen activator that stimulates activation of the major fibrinolysin, plasmin, at cell surfaces. In human subjects, overexpression of annexin 2 in acute promyelocytic leukemia leads to a bleeding diathesis reflective of excessive cell surface annexin 2-dependent generation of plasmin (Menell, J. S., Cesarman, G. M., Jacovina, A. T., McLaughlin, M. A., Lev, E. A., and Hajjar, K. A. (1999) N. Engl. J. Med. 340, 994-1004). In addition, mice completely deficient in annexin 2 display fibrin accumulation within blood vessels and impaired clearance of injury-induced thrombi (Ling Q., Jacovina, A.T., Deora, A.B., Febbraio, M., Simantov, R., Silverstein, R. L., Hempstead, B. L., Mark, W., and Hajjar, K. A. (2004) J. Clin. Investig. 113, 38-48). Here, we show that endothelial cell annexin 2, a protein that lacks a typical signal peptide, translocates from the cytoplasm to the extracytoplasmic plasma membrane in response to brief temperature stress both in vitro and in vivo in the absence of cell death or cell lysis. This regulated response is independent of new protein or mRNA synthesis and does not require the classical endoplasmic reticulum-Golgi pathway. Temperature stress-induced annexin 2 translocation is dependent on both expression of protein p11 (S100A10) and tyrosine phosphorylation of annexin 2 because annexin 2 release is completely eliminated on depletion of p11, inactivation of tyrosine kinase, or mutation of tyrosine 23. Translocation of annexin 2 to the cell surface dramatically increases tissue plasminogen activator-dependent plasminogen activation potential and may represent a novel stress-induced protein secretion pathway.
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Affiliation(s)
- Arunkumar B Deora
- Department of Cell and Developmental Biology, Weill Medical College of Cornell University, New York, New York 10021, USA
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Vergnolle N, Pagès P, Guimbaud R, Chaussade S, Buéno L, Escourrou J, Coméra C. Annexin 1 is secreted in situ during ulcerative colitis in humans. Inflamm Bowel Dis 2004; 10:584-92. [PMID: 15472519 DOI: 10.1097/00054725-200409000-00013] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Although annexin l exerts extracellular anti-inflammatory properties, little is known about its release in inflammatory diseases. Here, we characterized annexin 1 secretion in ulcerative colitis (UC) patients. Annexin 1 was detected by immunoblotting, in tissue homogenates and supernatants of colonic biopsies incubated in culture media, and in luminal colonic perfusates of UC patients. Annexin 1 was released by inflamed colonic biopsies from patients having severe UC but not by biopsies from healthy colon of the same patient or by biopsies from non-UC patients or from patients with slight or moderate UC. Annexin 1 was detected in luminal colonic perfusates of patients having moderate or slight UC but not in perfusates from control patients. The level of annexin 1 expression and secretion was unrelated to long-term glucocorticoid treatment, but annexin 1 secretion in perfusates was induced, in some patients, by short-term glucocorticoid exposure. These results show that annexin 1 is secreted endogenously in the colon of patients with UC. This secretion, which occurs both in vitro and in vivo, depends on the severity of inflammation. Given the anti-inflammatory effects of annexin 1, this protein may serve to down-regulate the inflammatory response in the course of inflammatory bowel disease.
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Affiliation(s)
- Nathalie Vergnolle
- Laboratoire de Pharmacologie et Toxicologie, Institut National de la Recherche Agronomique, Toulouse, France.
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Kawaminami M, Senda A, Etoh S, Miyaoka H, Kurusu S, Hashimoto I. Annexin 5 inhibits thyrotropin releasing hormone (TRH) stimulated prolactin release in the primary culture of rat anterior pituitary cells. Endocr J 2004; 51:349-54. [PMID: 15256781 DOI: 10.1507/endocrj.51.349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Annexin 5, a novel calcium-phospholipid binding protein, is thought to be involved in hormone secretion by the anterior pituitary gland. Gonadotropin releasing hormone stimulates annexin 5 synthesis, which, in turn, enhances gonadotoropin secretion. On the other hand, annexin 5 was shown to inhibit prolactin release in vitro. To understand the nature of the opposing effects of annexin 5 on these two major pituitary hormones, the present study examines the inhibitory effect of annexin 5 on prolactin release in relation to thyrotropin stimulating hormone (TRH) using primary cultures of anterior pituitary cells of adult female rats. While recombinant rat annexin 5 was found to have little effect on basal prolactin release, it significantly inhibited TRH-stimulated prolactin release. Addition of specific anti-annexin 5 serum to the culture increased basal prolactin release in a concentration dependent manner, and no further increase in prolactin release was observed following application of TRH in the presence of anti-annexin 5. The enhanced basal prolactin release induced by anti-annexin 5 was reversed by the simultaneous administration of indomethacin, an inhibitor of cyclooxygenase. These results demonstrate that endogenous pituitary annexin 5 exerts an inhibitory effect on prolactin release and suggest that this is attained by suppression of eicosanoid synthesis in vitro.
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Affiliation(s)
- Mitsumori Kawaminami
- Laboratory of Veterinary Physiology, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Aomori 034-8628, Japan
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