DOCSLIB.ORG

International Union of Basic and Clinical Pharmacology. LXXXVII

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
International Union of Basic and Clinical Pharmacology. LXXXVII Supplemental Material can be found at: /content/suppl/2014/09/18/65.1.500.DC1.html 1521-0081/65/1/500–543$25.00 http://dx.doi.org/10.1124/pr.111.005223 PHARMACOLOGICAL REVIEWS Pharmacol Rev 65:500–543, January 2013 Copyright © 2013 by The American Society for Pharmacology and Experimental Therapeutics International Union of Basic and Clinical Pharmacology. LXXXVII. Complement Peptide C5a, C4a, and C3a Receptors Andreas Klos, Elisabeth Wende, Kathryn J. Wareham, and Peter N. Monk Department for Medical Microbiology, Medical School Hannover, Hannover, Germany (A.K., E.W.); and the Department of Infection and Immunity, University of Sheffield Medical School, Sheffield, United Kingdom (K.J.W., P.N.M.) Abstract. ....................................................................................502 I. Introduction. ..............................................................................503 A. Production of Complement Peptides......................................................503 B. Concentrations of Complement Peptides in Health and Disease. .........................503 C. C3a and C5a Generation outside the Complement Cascade ...............................504 D. Deactivation of Complement Peptides ....................................................505 II. The Role of Complement Peptides in Pathophysiology . .....................................505 A. Complement Peptides Are Important Biomarkers of Disease..............................505 B. Functions of the Complement Peptides beyond Innate Immunity .........................506 Downloaded from 1. Cell Migration and Homing...........................................................506 2. Adaptive Immunity. ..................................................................507 3. Hemopoiesis. ........................................................................508 4. Regeneration and Other Functions....................................................508 III. Structure of Complement Peptides...........................................................508 A. C3a.....................................................................................508 by guest on October 2, 2021 1. Sequence.............................................................................508 2. Structure.............................................................................509 3. Peptide Analogs of C3a . ............................................................509 4. Peptidomimetic Analogs of C3a . ......................................................510 B. C4a.....................................................................................511 1. Sequence.............................................................................511 C. C5a.....................................................................................511 1. Sequence.............................................................................511 2. Structure.............................................................................511 3. Receptor Interacting Residues of C5a . ................................................511 4. Peptide Analogs of C5a . ............................................................512 a. Agonists . ........................................................................512 b. Antagonists .......................................................................512 5. Naturally Occurring Non-Complement-Derived Analogs of C5a ........................513 6. Nonpeptidic Analogs of C5a ..........................................................514 IV. Receptors ...................................................................................515 A. Introduction .............................................................................515 B. C3a Receptor ............................................................................516 1. Sequence and Genetics . ............................................................516 2. Post-translational Modifications ......................................................516 a. Glycosylation . ..................................................................516 b. Tyrosine Sulfation ................................................................516 This study was funded in part by the British Heart Foundation [Project Grant PG/09/018/25279] (to P.N.M., for K.J.W.); by the Hannover Biomedical Research School (HBRS/ZIB) (to E.W.); the Helmholtz International Research School for Infection Biology (HIRSIB) (to E.W.); and BMBF Verbund Zoonotischer Chlamydien, TP9 [Project Grants 01 Kl 1011F] (to E.W.), SFB587, TP A16 (to A.K.)]. Address correspondence to: Peter N. Monk, Department of Infection and Immunity, University of Sheffield Medical School, Beech Hill Road, Sheffield S10 2RX, United Kingdom. E-mail: [email protected] dx.doi.org/10.1124/pr.111.005223. 500 An erratum has been published: /content/66/2/466.full.pdf Complement Peptide Receptors 501 c. Phosphorylation. ..................................................................516 d. S-acylation........................................................................516 3. Expression . ........................................................................517 4. Ligand Binding by C3a Receptor......................................................517 5. C3a Receptor Signaling. ............................................................517 a. G protein mediated . ............................................................517 b. Arrestin mediated.................................................................517 C. C5a1 Receptor . ........................................................................518 1. Sequence and Genetics . ............................................................518 2. Post-translational Modifications ......................................................518 a. Glycosylation . ..................................................................518 b. Tyrosine sulfation.................................................................518 c. Phosphorylation. ..................................................................518 3. Expression . ........................................................................519 4. Ligand Binding by C5a1 Receptor.....................................................519 a. C5a1 receptor binds both C5a and C5a des-Arg ....................................519 5. Two-Site Binding Paradigm ..........................................................519 a. Binding site one: C5a1 receptor N terminus. .....................................519 b. Binding site two: transmembrane/extracellular loop regions of C5a1 receptor .......520 c. Comparison with C5a2 receptor . ................................................521 6. C5a1 Receptor Signaling . ............................................................522 a. G protein mediated . ............................................................522 b. Arrestin signaling.................................................................522 D. C5a2 Receptor as a C5a and C5a des-Arg Receptor . .....................................522 1. Sequence and Genetics . ............................................................522 2. Post-translational Modification . ......................................................523 a. Glycosylation . ..................................................................523 b. Tyrosine sulfation.................................................................523 c. Phosphorylation. ..................................................................523 d. S-acylation........................................................................523 3. C5a2 Receptor Expression ............................................................523 a. Intracellular or extracellular localization for C5a2 receptor.........................523 b. Regulation of expression ..........................................................523 4. Ligand Binding by C5a2 Receptor.....................................................524 a. C5a and C5a des-Arg . ............................................................524 b. Other complement peptides . ......................................................524 c. Comparison with C5a1 Receptor ligand binding ....................................524 d. Modulation of ligand binding ......................................................524 5. C5a2 Receptor Signaling . ............................................................524 a. G protein mediated . ............................................................524 ABBREVIATIONS: ALS, amyotrophic lateral sclerosis; AMD, age-related macular degeneration; AMPK, adenosine monophosphate- activated protein kinase; AP-1, activator protein 1; apoB, apolipoprotein B; apoE, apolipoprotein E; ASP, acylation-stimulating protein; AU- rich, adenylate-uridylate-rich; BMI, body mass index; Cha, cyclohexylalanine; CHIPS, chemotaxis inhibitory protein of Staphylococcus aureus; CHO, Chinese hamster ovary; CLP, cecal ligation and puncture; CPB, carboxypeptidase B; CPN, carboxypeptidase N; CPR, carboxypeptidase R; CRP, C-reactive protein; DC, dendritic cell; DMSO, dimethyl sulfoxide; EC, extracellular domain; EDTA, ethylenediaminetetraacetic acid; ELISA, enzyme-linked immunosorbent assay; ERK, extracellular signal-regulated kinase; FEV1, forced expiratory volume in 1 second; FL, fluorescence labeled; FPR, formyl peptide receptor; GPCR, G-protein-coupled receptor; HEK, human embryonic kidney; HMGB1, high- mobility group box 1; Hoo, hydroxyorotic acid; HSF, human skin fibroblast; IC, inhibitory concentration; IFN, interferon; IL,
Load more

Recommended publications
  • The Role of Streptococcal and Staphylococcal Exotoxins and Proteases in Human Necrotizing Soft Tissue Infections
    toxins Review The Role of Streptococcal and Staphylococcal Exotoxins and Proteases in Human Necrotizing Soft Tissue Infections Patience Shumba 1, Srikanth Mairpady Shambat 2 and Nikolai Siemens 1,* 1 Center for Functional Genomics of Microbes, Department of Molecular Genetics and Infection Biology, University of Greifswald, D-17489 Greifswald, Germany; [email protected] 2 Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, CH-8091 Zurich, Switzerland; [email protected] * Correspondence: [email protected]; Tel.: +49-3834-420-5711 Received: 20 May 2019; Accepted: 10 June 2019; Published: 11 June 2019 Abstract: Necrotizing soft tissue infections (NSTIs) are critical clinical conditions characterized by extensive necrosis of any layer of the soft tissue and systemic toxicity. Group A streptococci (GAS) and Staphylococcus aureus are two major pathogens associated with monomicrobial NSTIs. In the tissue environment, both Gram-positive bacteria secrete a variety of molecules, including pore-forming exotoxins, superantigens, and proteases with cytolytic and immunomodulatory functions. The present review summarizes the current knowledge about streptococcal and staphylococcal toxins in NSTIs with a special focus on their contribution to disease progression, tissue pathology, and immune evasion strategies. Keywords: Streptococcus pyogenes; group A streptococcus; Staphylococcus aureus; skin infections; necrotizing soft tissue infections; pore-forming toxins; superantigens; immunomodulatory proteases; immune responses Key Contribution: Group A streptococcal and Staphylococcus aureus toxins manipulate host physiological and immunological responses to promote disease severity and progression. 1. Introduction Necrotizing soft tissue infections (NSTIs) are rare and represent a more severe rapidly progressing form of soft tissue infections that account for significant morbidity and mortality [1].
    [Show full text]
  • The Membrane Complement Regulatory Protein CD59 and Its Association with Rheumatoid Arthritis and Systemic Lupus Erythematosus
    Current Medicine Research and Practice 9 (2019) 182e188 Contents lists available at ScienceDirect Current Medicine Research and Practice journal homepage: www.elsevier.com/locate/cmrp Review Article The membrane complement regulatory protein CD59 and its association with rheumatoid arthritis and systemic lupus erythematosus * Nibhriti Das a, Devyani Anand a, Bintili Biswas b, Deepa Kumari c, Monika Gandhi c, a Department of Biochemistry, All India Institute of Medical Sciences, New Delhi 110029, India b Department of Zoology, Ramjas College, University of Delhi, India c University School of Biotechnology, Guru Gobind Singh Indraprastha University, India article info abstract Article history: The complement cascade consisting of about 50 soluble and cell surface proteins is activated in auto- Received 8 May 2019 immune inflammatory disorders. This contributes to the pathological manifestations in these diseases. In Accepted 30 July 2019 normal health, the soluble and membrane complement regulatory proteins protect the host against Available online 5 August 2019 complement-mediated self-tissue injury by controlling the extent of complement activation within the desired limits for the host's benefit. CD59 is a membrane complement regulatory protein that inhibits the Keywords: formation of the terminal complement complex or membrane attack complex (C5b6789n) which is CD59 generated on complement activation by any of the three pathways, namely, the classical, alternative, and RA SLE the mannose-binding lectin pathway. Animal experiments and human studies have suggested impor- Pathophysiology tance of membrane complement proteins including CD59 in the pathophysiology of rheumatoid arthritis Disease marker (RA) and systemic lupus erythematosus (SLE). Here is a brief review on CD59 and its distribution, structure, functions, and association with RA and SLE starting with a brief introduction on the com- plement system, its activation, the biological functions, and relations of membrane complement regu- latory proteins, especially CD59, with RA and SLE.
    [Show full text]
  • More Than a Pore: Nonlytic Antimicrobial Functions of Downloaded from Complement and Bacterial Strategies for Evasion
    REVIEW More than a Pore: Nonlytic Antimicrobial Functions of Downloaded from Complement and Bacterial Strategies for Evasion Elisabet Bjanes,a Victor Nizeta,b aDivision of Host-Microbe Systems and Therapeutics, Department of Pediatrics, UC San Diego, La Jolla, California, USA bSkaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, California, USA http://mmbr.asm.org/ SUMMARY ........................................................................1 INTRODUCTION ...................................................................2 BY THE BOOK: CANONICAL COMPLEMENT CASCADES ...............................2 Off to the Races—Pathway Activation . 2 More and More—Amplification . 3 End of the Line—Termination . 3 Pump the Brakes—Inhibition . 5 Surviving MAC Attack—Evasion of Complement Lysis by Gram-Negative Bacteria . 6 NONLYTIC COMPLEMENT FUNCTIONS AND BACTERIAL EVASION MECHANISMS ......8 Special Considerations in Gram-Positive Bacteria . 8 on January 27, 2021 at UNIV OF CALIF SAN DIEGO Preparing the Meal—Complement Aids Opsonization and Phagocytosis . 8 Food for Thought—Complement Traffics to Autophagy . 10 Fueling the Fire—Complement Modulates Inflammatory Responses . 11 Casting a Wider NET—Complement and Neutrophil Synergy . 12 Inside Scoop—Novel Roles of Intracellular Complement . 13 Tying the Clot—Complement and Coagulation Cross Talk . 15 Bridging the Gap—Complement Instructs Adaptive Immunity . 17 REFRAMING SCIENTIFIC PARADIGMS AND THERAPEUTIC APPROACHES TO ENCOMPASS COMPLEMENT ..................................................18
    [Show full text]
  • Molecular Markers of Serine Protease Evolution
    The EMBO Journal Vol. 20 No. 12 pp. 3036±3045, 2001 Molecular markers of serine protease evolution Maxwell M.Krem and Enrico Di Cera1 ment and specialization of the catalytic architecture should correspond to signi®cant evolutionary transitions in the Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Box 8231, St Louis, history of protease clans. Evolutionary markers encoun- MO 63110-1093, USA tered in the sequences contributing to the catalytic apparatus would thus give an account of the history of 1Corresponding author e-mail: [email protected] an enzyme family or clan and provide for comparative analysis with other families and clans. Therefore, the use The evolutionary history of serine proteases can be of sequence markers associated with active site structure accounted for by highly conserved amino acids that generates a model for protease evolution with broad form crucial structural and chemical elements of applicability and potential for extension to other classes of the catalytic apparatus. These residues display non- enzymes. random dichotomies in either amino acid choice or The ®rst report of a sequence marker associated with serine codon usage and serve as discrete markers for active site chemistry was the observation that both AGY tracking changes in the active site environment and and TCN codons were used to encode active site serines in supporting structures. These markers categorize a variety of enzyme families (Brenner, 1988). Since serine proteases of the chymotrypsin-like, subtilisin- AGY®TCN interconversion is an uncommon event, it like and a/b-hydrolase fold clans according to phylo- was reasoned that enzymes within the same family genetic lineages, and indicate the relative ages and utilizing different active site codons belonged to different order of appearance of those lineages.
    [Show full text]
  • Important Roles of C5a and C5ar in Tumor Development and Cancer Treatment
    E3S Web o f Conferences 136, 06012 (2019) https://doi.org/10.1051/e3sconf/20191360 6012 ICBTE 2019 Important roles of C5a and C5aR in tumor development and cancer treatment Wang Yuxuan Bioengineering, School of Life Science, Anhui University,230601 Abstract: The complement system is part of the body's innate defense immune system, which can identify and eliminate invasive pathogenic microorganisms to maintain normal life activities. Complement Component 5a (C5a) is an active anaphylatoxin produced after complement system activation, closely related to tumor formation. C5a is highly expressed in a variety of tumors, and combines with its Complement Component 5a Receptor (C5aR) to increase the proliferation and migration of tumor cells. This review will comprehensively elaborate the important role of C5a/C5aR in the process of tumor genesis and development from the three aspects of signal transduction pathways related to tumor, C5a/C5aR and tumor formation, and C5a/C5aR inhibitors and tumor therapy. Finally, the principle of complement inhibition is used to inhibit tumor metastasis, reduce the rate of tumor diffusion, and control the trend of tumor deterioration. 1 Introduction The generation of tumor is closely related to the microenvironment in which tumor is located. A variety of cells in the microenvironment, such as lymphocytes, macrophages, fibroblasts and various molecules, such as complement and cytokines, are involved in the survival, proliferation and metastasis of tumor cells. Complement Component is a protein with enzyme activity. Since the discovery of complement system by Belgian doctor J. Bordet in 1890, a large number of studies have shown that complement exists in human serum, tissue fluid and cell membrane surface1.
    [Show full text]
  • The 'C3ar Antagonist' SB290157 Is a Partial C5ar2 Agonist
    bioRxiv preprint doi: https://doi.org/10.1101/2020.08.01.232090; this version posted August 3, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. The ‘C3aR antagonist’ SB290157 is a partial C5aR2 agonist Xaria X. Li1, Vinod Kumar1, John D. Lee1, Trent M. Woodruff1* 1School of Biomedical Sciences, The University of Queensland, St Lucia, 4072 Australia. * Correspondence: Prof. Trent M. Woodruff School of Biomedical Sciences, The University of Queensland, St Lucia, 4072 Australia. Ph: +61 7 3365 2924; Fax: +61 7 3365 1766; E-mail: [email protected] Keywords: Complement C3a, C3aR, SB290157, C5aR1, C5aR2 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.01.232090; this version posted August 3, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Abbreviations used in this article: BRET, bioluminescence resonance energy transfer; BSA, bovine serum albumin; C3aR, C3a receptor C5aR1, C5a receptor 1; CHO-C3aR, Chinese hamster ovary cells stably expressing C3aR; CHO-C5aR1, Chinese hamster ovary cells stably expressing C5aR1; DMEM, Dulbecco's Modified Eagle's Medium; ERK1/2, extracellular signal-regulated kinase 1/2; FBS, foetal bovine serum; HEK293, human embryonic kidney 293 cells; HMDM, human monocyte-derived macrophage; i.p., intraperitoneal; i.v., intravenous; rhC5a, recombinant human C5a; RT, room temperature; S.E.M.
    [Show full text]
  • BD Biosciences New RUO Reagents - November 2020
    BD Biosciences New RUO reagents - November 2020 Reactivity Description Format Clone Size Cat. number Hu CD133 FITC W6B3C1 100µg 567029 Hu CD133 FITC W6B3C1 25µg 567033 Hu CD39 PE A1/CD39 100Tst 567156 Hu CD39 PE A1/CD39 25Tst 567157 Hu KIR2DL1/S1/S3/S5 PE HP-MA4 100Tst 567158 Hu KIR2DL1/S1/S3/S5 PE HP-MA4 25Tst 567159 Hu IL-22 Alexa Fluor® 647 MH22B2 100µg 567160 Hu IL-22 Alexa Fluor® 647 MH22B2 25µg 567161 Hu CD99 R718 TU12 50µg 751651 Hu CD161 R718 DX12 50µg 751652 Hu CD116 R718 HGMCSFR-M1 50µg 751653 Hu HLA-G R718 87G 50µg 751670 Hu CD27 R718 O323 50µg 751686 Hu CD80 (B7-1) R718 2D10.4 50µg 751737 Hu Integrin αvβ5 R718 ALULA 50µg 751738 Hu CD266 (Tweak-R) R718 ITEM-4 50µg 751739 Hu ErbB3 (HER-3) R718 SGP1 50µg 751799 Hu TCR Vβ5.1 R718 LC4 50µg 751816 Hu CD123 (IL-3Ra) R718 6H6 50µg 751844 Hu CD1a R718 SK9 50µg 751847 Hu CD20 R718 L27 50µg 751849 Hu Disial GD2 R718 14.G2A 50µg 751851 Reactivity Description Format Clone Size Cat. number Hu CD71 R718 L01.1 50µg 751853 Hu CD278 (ICOS) R718 DX29 50µg 751854 Hu B7-H4 R718 MIH43 50µg 751857 Hu CD53 R718 HI29 50µg 751858 Hu CD197 (CCR7) R718 2-L1-A 50µg 751859 Hu CD197 (CCR7) R718 3D12 50µg 751861 Hu CD31 R718 L133.1 50µg 751863 Hu EGF Receptor R718 EMAB-134 50µg 751864 Hu CD8b R718 2ST8.5H7 50µg 751867 Hu CD31 R718 MBC 78.2 50µg 751869 Hu CD162 R718 KPL-1 50µg 751873 Hu CD24 R718 ML5 50µg 751874 Hu CD159C (NKG2C) R718 134591 50µg 751876 Hu CD169 (Siglec-1) R718 7-239 50µg 751877 Hu CD16b R718 CLB-GRAN11.5 50µg 751880 Hu IgM R718 UCH-B1 50µg 751881 Hu CD275 R718 2D3/B7-H2 50µg 751883 Hu CD307e
    [Show full text]
  • Shiga Toxin 2A Binds to Complement Components C3b and C5 and Upregulates Their Gene Expression in Human Cell Lines
    toxins Article Shiga Toxin 2a Binds to Complement Components C3b and C5 and Upregulates Their Gene Expression in Human Cell Lines Sára Kellnerová 1,†, Sneha Chatterjee 1,†, Rafael Bayarri-Olmos 2 , Louise Justesen 2 , Heribert Talasz 3, Wilfried Posch 1 , Samyr Kenno 1, Peter Garred 2, Dorothea Orth-Höller 1,*, Marco Grasse 1 and Reinhard Würzner 1,* 1 Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraβe 41, A-6020 Innsbruck, Austria; [email protected] (S.K.); [email protected] (S.C.); [email protected] (W.P.); [email protected] (S.K.); [email protected] (M.G.) 2 Laboratory of Molecular Medicine, Department of Clinical Immunology Section 7631, Rigshospitalet, University of Copenhagen, Ole Maaloesvej 26, 2200 Copenhagen, Denmark; [email protected] (R.B.-O.); [email protected] (L.J.); [email protected] (P.G.) 3 Centre of Chemistry and Biomedicine, Division of Clinical Biochemistry, Medical University of Innsbruck, Innrain 80, A-6020 Innsbruck, Austria; [email protected] * Correspondence: [email protected] (D.O.-H.); [email protected] (R.W.); Tel.: +43-512-900-370-707 (R.W.) † First authors. Abstract: Enterohemorrhagic Escherichia coli (EHEC) infections can cause EHEC-associated hemolytic uremic syndrome (eHUS) via its main virulent factor, Shiga toxins (Stxs). Complement has been reported to be involved in the progression of eHUS. The aim of this study was to investigate the interactions of the most effective subtype of the toxin, Stx2a, with pivotal complement proteins C3b and C5.
    [Show full text]
  • Serine Proteases with Altered Sensitivity to Activity-Modulating
    (19) & (11) EP 2 045 321 A2 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.: 08.04.2009 Bulletin 2009/15 C12N 9/00 (2006.01) C12N 15/00 (2006.01) C12Q 1/37 (2006.01) (21) Application number: 09150549.5 (22) Date of filing: 26.05.2006 (84) Designated Contracting States: • Haupts, Ulrich AT BE BG CH CY CZ DE DK EE ES FI FR GB GR 51519 Odenthal (DE) HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI • Coco, Wayne SK TR 50737 Köln (DE) •Tebbe, Jan (30) Priority: 27.05.2005 EP 05104543 50733 Köln (DE) • Votsmeier, Christian (62) Document number(s) of the earlier application(s) in 50259 Pulheim (DE) accordance with Art. 76 EPC: • Scheidig, Andreas 06763303.2 / 1 883 696 50823 Köln (DE) (71) Applicant: Direvo Biotech AG (74) Representative: von Kreisler Selting Werner 50829 Köln (DE) Patentanwälte P.O. Box 10 22 41 (72) Inventors: 50462 Köln (DE) • Koltermann, André 82057 Icking (DE) Remarks: • Kettling, Ulrich This application was filed on 14-01-2009 as a 81477 München (DE) divisional application to the application mentioned under INID code 62. (54) Serine proteases with altered sensitivity to activity-modulating substances (57) The present invention provides variants of ser- screening of the library in the presence of one or several ine proteases of the S1 class with altered sensitivity to activity-modulating substances, selection of variants with one or more activity-modulating substances. A method altered sensitivity to one or several activity-modulating for the generation of such proteases is disclosed, com- substances and isolation of those polynucleotide se- prising the provision of a protease library encoding poly- quences that encode for the selected variants.
    [Show full text]
  • Review Article Complement System and Age-Related Macular Degeneration: Implications of Gene-Environment Interaction for Preventive and Personalized Medicine
    Hindawi BioMed Research International Volume 2018, Article ID 7532507, 13 pages https://doi.org/10.1155/2018/7532507 Review Article Complement System and Age-Related Macular Degeneration: Implications of Gene-Environment Interaction for Preventive and Personalized Medicine Andrea Maugeri ,1 Martina Barchitta ,1 Maria Grazia Mazzone,2 Francesco Giuliano,2 and Antonella Agodi 1 1 Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, Via S. Sofa 87, 95123 Catania, Italy 2SIFI SpA, Research and Development Department, Via Ercole Patti 36, 95025 Catania, Italy Correspondence should be addressed to Antonella Agodi; [email protected] Received 18 May 2018; Accepted 18 July 2018; Published 26 August 2018 Academic Editor: Sajib Chakraborty Copyright © 2018 Andrea Maugeri et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Age-related macular degeneration (AMD) is the most common cause of visual loss in developed countries, with a signifcant economic and social burden on public health. Although genome-wide and gene-candidate studies have been enabled to identify genetic variants in the complement system associated with AMD pathogenesis, the efect of gene-environment interaction is still under debate. In this review we provide an overview of the role of complement system and its genetic variants in AMD, summarizing the consequences of the interaction between genetic and environmental risk factors on AMD onset, progression, and therapeutic response. Finally, we discuss the perspectives of current evidence in the feld of genomics driven personalized medicine and public health.
    [Show full text]
  • High-Throughput Proteomic Profiling of the Fish Liver Following Bacterial
    Causey et al. BMC Genomics (2018) 19:719 https://doi.org/10.1186/s12864-018-5092-0 RESEARCH ARTICLE Open Access High-throughput proteomic profiling of the fish liver following bacterial infection Dwight R Causey1, Moritz A N Pohl1, David A Stead2, Samuel A M Martin1, Christopher J Secombes1 and Daniel J Macqueen1* Abstract Background: High-throughput proteomics was used to determine the role of the fish liver in defense responses to bacterial infection. This was done using a rainbow trout (Oncorhynchus mykiss) model following infection with Aeromonas salmonicida, the causative agent of furunculosis. The vertebrate liver has multifaceted functions in innate immunity, metabolism, and growth; we hypothesize this tissue serves a dual role in supporting host defense in parallel to metabolic adjustments that promote effectiveimmunefunction.Whilepaststudieshavereported mRNA responses to A. salmonicida in salmonids, the impact of bacterial infection on the liver proteome remains uncharacterized in fish. Results: Rainbow trout were injected with A. salmonicida or PBS (control) and liver extracted 48 h later for analysis on a hybrid quadrupole-Orbitrap mass spectrometer. A label-free method was used for protein abundance profiling, which revealed a strong innate immune response along with evidence to support parallel rewiring of metabolic and growth systems. 3076 proteins were initially identified against all proteins (n = 71,293 RefSeq proteins) annotated in a single high-quality rainbow trout reference genome, of which 2433 were maintained for analysis post-quality filtering. Among the 2433 proteins, 109 showed significant differential abundance following A. salmonicida challenge, including many upregulated complement system and acute phase response proteins, in addition to molecules with putative functions that may support metabolic re-adjustments.
    [Show full text]
  • Regulation of Decay Accelerating Factor Primes Human Germinal Center B Cells for Phagocytosis
    ORIGINAL RESEARCH published: 05 January 2021 doi: 10.3389/fimmu.2020.599647 Regulation of Decay Accelerating Factor Primes Human Germinal Center B Cells for Phagocytosis Andy Dernstedt 1, Jana Leidig 1, Anna Holm 2, Priscilla F. Kerkman 1, Jenny Mjösberg 3, Clas Ahlm 1, Johan Henriksson 4, Magnus Hultdin 5 and Mattias N. E. Forsell 1* 1 Department of Clinical Microbiology, Section of Infection and Immunology, Umeå University, Umeå, Sweden, 2 Department of Clinical Sciences, Division of Otorhinolaryngology, Umeå University, Umeå, Sweden, 3 Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, 4 Molecular Infection Medicine Sweden, Department of Molecular Biology, Umeå University, Umeå, Sweden, 5 Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden Germinal centers (GC) are sites for extensive B cell proliferation and homeostasis is maintained by programmed cell death. The complement regulatory protein Decay Edited by: Accelerating Factor (DAF) blocks complement deposition on host cells and therefore Judith Fraussen, also phagocytosis of cells. Here, we show that B cells downregulate DAF upon BCR University of Hasselt, Belgium lo Reviewed by: engagement and that T cell-dependent stimuli preferentially led to activation of DAF B lo Paolo Casali, cells. Consistent with this, a majority of light and dark zone GC B cells were DAF and University of Texas Health Science susceptible to complement-dependent phagocytosis, as compared with DAFhi GC B Center at San Antonio, United States hi Shengli Xu, cells. We could also show that the DAF GC B cell subset had increased expression of the Bioprocessing Technology Institute plasma cell marker Blimp-1.
    [Show full text]