Apoptotic Cells Inflammasome Activity During the Uptake of Macrophage

Total Page:16

File Type:pdf, Size:1020Kb

Apoptotic Cells Inflammasome Activity During the Uptake of Macrophage Downloaded from http://www.jimmunol.org/ by guest on September 29, 2021 is online at: average * The Journal of Immunology , 26 of which you can access for free at: 2012; 188:5682-5693; Prepublished online 20 from submission to initial decision 4 weeks from acceptance to publication April 2012; doi: 10.4049/jimmunol.1103760 http://www.jimmunol.org/content/188/11/5682 Complement Protein C1q Directs Macrophage Polarization and Limits Inflammasome Activity during the Uptake of Apoptotic Cells Marie E. Benoit, Elizabeth V. Clarke, Pedro Morgado, Deborah A. Fraser and Andrea J. Tenner J Immunol cites 56 articles Submit online. Every submission reviewed by practicing scientists ? is published twice each month by Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts http://jimmunol.org/subscription http://www.jimmunol.org/content/suppl/2012/04/20/jimmunol.110376 0.DC1 This article http://www.jimmunol.org/content/188/11/5682.full#ref-list-1 Information about subscribing to The JI No Triage! Fast Publication! Rapid Reviews! 30 days* Why • • • Material References Permissions Email Alerts Subscription Supplementary The Journal of Immunology The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 Copyright © 2012 by The American Association of Immunologists, Inc. All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. This information is current as of September 29, 2021. The Journal of Immunology Complement Protein C1q Directs Macrophage Polarization and Limits Inflammasome Activity during the Uptake of Apoptotic Cells Marie E. Benoit, Elizabeth V. Clarke, Pedro Morgado, Deborah A. Fraser, and Andrea J. Tenner Deficiency in C1q, the recognition component of the classical complement cascade and a pattern recognition receptor involved in apoptotic cell clearance, leads to lupus-like autoimmune diseases characterized by auto-antibodies to self proteins and aberrant innate immune cell activation likely due to impaired clearance of apoptotic cells. In this study, we developed an autologous system using primary human lymphocytes and human monocyte-derived macrophages (HMDMs) to characterize the effect of C1q on macrophage gene expression profiles during the uptake of apoptotic cells. C1q bound to autologous apoptotic lymphocytes mod- Downloaded from ulated expression of genes associated with JAK/STAT signaling, chemotaxis, immunoregulation, and NLRP3 inflammasome acti- vation in LPS-stimulated HMDMs. Specifically, C1q sequentially induced type I IFNs, IL-27, and IL-10 in LPS-stimulated HMDMs and IL-27 in HMDMs when incubated with apoptotic lymphocyte conditioned media. Coincubation with C1q tails prevented the induction of type I IFNs and IL-27 in a dose-dependent manner, and neutralization of type I IFNs partially prevented IL-27 induction by C1q. Finally, C1q decreased procaspase-1 cleavage and caspase-1–dependent cleavage of IL-1b suggesting a potent inhibitory effect of C1q on inflammasome activation. These results identify specific molecular pathways induced by C1q to http://www.jimmunol.org/ suppress macrophage inflammation and provide potential therapeutic targets to control macrophage polarization and thus inflammation and autoimmunity. The Journal of Immunology, 2012, 188: 5682–5693. he complement system, a powerful effector of the innate moral defense system to sense danger by recognizing pathogen- immune system, consists of a group of proteins circulating associated molecular patterns (PAMPs) but is also activated by T as inactive precursors in the blood and in extracellular damage-associated molecular patterns (DAMPs) or altered self fluids. Upon activation through the classical, lectin, or alternative tissues. Dysregulated complement activation has been associated pathway, a cascade of proteolytic cleavages and formation of with the development of various diseases including rheumatoid central enzymatic complexes (C3 and C5 convertases) leads to arthritis and Alzheimer’s disease (2, 3). A causal link between by guest on September 29, 2021 the generation of active fragments resulting in the opsonization complement deficiency and systemic lupus erythematosus (SLE) of invading pathogens (C1q, C3b, and iC3b), release of proin- involves in part the role of complement in physiological waste flammatory chemotactic factors (C3a and C5a), which recruit disposal mechanisms, in particular clearance of dying cells (4). leukocytes to the site of infection or injury, and finally formation Although activation by all three complement pathways can con- of the membrane attack complex (C5b-9) and subsequent lysis tribute to enhanced uptake of apoptotic cells by phagocytic cells of the pathogen (1, 2). Complement functions as an important hu- (5–8), homozygous deficiency of any of the early complement components of the classical pathway (C1q, C1r, C1s, C4, and C2) . Department of Molecular Biology and Biochemistry, Institute for Immunology, Uni- predisposes to the development of SLE with 90% of individuals versity of California, Irvine, Irvine, CA 92697 with genetic deficiency of C1q developing severe SLE (9). Received for publication December 22, 2011. Accepted for publication March 20, C1q is known to play a prominent nonredundant tissue-specific 2012. role in the clearance of apoptotic cells in vitro and in vivo (10– This work was supported by Grant UL1 RR031985 from the National Center for 14). C1q binds to apoptotic cells and cellular debris through its Research Resources (a component of the National Institutes of Health and the Na- globular heads (10, 15) and to phagocytic receptors through its tional Institutes of Health Roadmap for Medical Research), National Institutes of Health Grants AI 41090 and AG 00538, and the Cypress College Science, Technol- collagen tails (1, 16). Although at first thought to be primarily of ogy, Engineering, and Math Summer Bridge Program. liver origin, C1q is predominantly synthesized in vivo by peripheral The gene expression data presented in this article have been submitted to the Gene tissue macrophages and dendritic cells (17, 18) and by myeloid cells Expression Omnibus (http://www.ncbi.nlm.nih.gov/geo/) under accession number in vitro (8, 19–21). Although C1q is most often bound to C1r and GSE30177. C1s in the circulation (22), this local synthesis of C1q is hypothe- Address correspondence and reprint requests to Dr. Andrea J. Tenner, Department of Molecular Biology and Biochemistry, 3205 McGaugh Hall, University of California, sized to be the major source of C1q for the rapid opsonization of Irvine, Irvine, CA 92697. E-mail address: [email protected] dying cells in tissue before recruitment of plasma-derived compo- The online version of this article contains supplemental material. nents such as C1r and C1s and subsequent activation of the com- Abbreviations used in this article: AL, apoptotic lymphocyte; ASC, apoptosis-asso- plement cascade. In addition, induced synthesis of C1q has been ciated speck-like protein containing a CARD domain; DAMP, damage-associated mo- detected in several injury models in vivo and in vitro[(23, 24); lecular pattern; EAL, early apoptotic lymphocyte; GO, gene ontology; HMDM, human monocyte-derived macrophage; HMGB1, high mobility group box 1; HSP, heat shock reviewed in Ref. 3], suggesting that the induction of C1q synthesis protein; LAL, late apoptotic lymphocyte; PAMP, pathogen-associated molecular pat- in tissue may be a response to injury that promotes rapid clearance tern; pDC, plasmacytoid dendritic cell; PI, propidium iodide; qRT-PCR, quantitative of apoptotic cells and concomitant suppression of inflammation. For real-time PCR; SLE, systemic lupus erythematosus. example, interaction of C1q with human monocytes or dendritic Copyright Ó 2012 by The American Association of Immunologists, Inc. 0022-1767/12/$16.00 cells results in the downregulation of proinflammatory cytokines www.jimmunol.org/cgi/doi/10.4049/jimmunol.1103760 The Journal of Immunology 5683 upon TLR4 stimulation by LPS (25, 26). Recently, we showed that C1q binding assay C1q enhances uptake of apoptotic Jurkat T cells by human mono- EALs and LALs were incubated with 150 mg/ml purified human C1q for cytes but has no effect on the basal clearance level of these apoptotic 1 h in PBS/1% human serum albumin at 37˚C. Binding of C1q was as- cells by human monocyte-derived macrophages (HMDMs) and sessed for every experiment by flow cytometry using an mAb against C1q dendritic cells (8). In addition, although C1q influences the induc- (Quidel) and FITC–anti-mouse IgG (Jackson ImmunoResearch Laborato- . tion of cytokines in all myeloid cell types tested in this study, both ries). For each experiment, C1q binding was 50% for EALs or LALs. the degree and direction of modulation depend on the state of dif- Uptake assay ferentiation of the phagocytic cell (8). However, because several C1q receptors have been identified and none has been shown spe- PKH26-labeled or unlabeled EALs and LALs, precoated or not with C1q, were incubated with HMDMs at a 5:1 ratio for 1 h (optimal ratio and time cifically to mediate C1q-enhancement of phagocytosis of apoptotic determined in preliminary experiments, see Supplemental Fig. 2B) in cells (1, 12, 27), the intracellular signaling pathways engaged upon phagocytosis buffer (RPMI 1640, 25 mM HEPES, and 5 mM MgCl2). For interaction of C1q with phagocytic cells remain to be fully eluci- uptake quantification, cells were
Recommended publications
  • Supp Material.Pdf
    Legends for Supplemental Figures and Tables Figure S1. Expression of Tlx during retinogenesis. (A) Staged embryos were stained for β- galactosidase knocked into the Tlx locus to indicate Tlx expression. Tlx was expressed in the neural blast layer in the early phase of neural retina development (blue signal). (B) Expression of Tlx in neural retina was quantified using Q-PCR at multiple developmental stages. Figure S2. Expression of p27kip1 and cyclin D1 (Ccnd1) at various developmental stages in wild-type or Tlx-/- retinas. (A) Q-PCR analysis of p27kip1 mRNA expression. (B) Western blotting analysis of p27kip1 protein expression. (C) Q-PCR analysis of cyclin D1 mRNA expression. Figure S3. Q-PCR analysis of mRNA expression of Sf1 (A), Lrh1 (B), and Atn1 (C) in wild-type mouse retinas. RNAs from testis and liver were used as controls. Table S1. List of genes dysregulated both at E15.5 and P0 Tlx-/- retinas. Gene E15.5 P0 Cluste Gene Title Fold Fold r Name p-value p-value Change Change nuclear receptor subfamily 0, group B, Nr0b1 1.65 0.0024 2.99 0.0035 member 1 1 Pou4f3 1.91 0.0162 2.39 0.0031 POU domain, class 4, transcription factor 3 1 Tcfap2d 2.18 0.0000 2.37 0.0001 transcription factor AP-2, delta 1 Zic5 1.66 0.0002 2.02 0.0218 zinc finger protein of the cerebellum 5 1 Zfpm1 1.85 0.0030 1.88 0.0025 zinc finger protein, multitype 1 1 Pten 1.60 0.0155 1.82 0.0131 phospatase and tensin homolog 2 Itgb5 -1.85 0.0063 -1.85 0.0007 integrin beta 5 2 Gpr49 6.86 0.0001 15.16 0.0001 G protein-coupled receptor 49 3 Cmkor1 2.60 0.0007 2.72 0.0013
    [Show full text]
  • Hypoxia-Induced Alpha-Globin Expression in Syncytiotrophoblasts Mimics the Pattern Observed in Preeclamptic Placentas
    International Journal of Molecular Sciences Article Hypoxia-Induced Alpha-Globin Expression in Syncytiotrophoblasts Mimics the Pattern Observed in Preeclamptic Placentas Zahra Masoumi 1,* , Lena Erlandsson 1, Eva Hansson 1, Mattias Magnusson 2, Eva Mezey 3 and Stefan R. Hansson 1,4 1 Department of Clinical Sciences Lund, Division of Obstetrics and Gynecology, Lund University, SE-22184 Lund, Sweden; [email protected] (L.E.); [email protected] (E.H.); [email protected] (S.R.H.) 2 Department of Molecular Medicine and Gene Therapy, Lund University, SE-22184 Lund, Sweden; [email protected] 3 Adult Stem Cell Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA; [email protected] 4 Skåne University Hospital, SE-22184 Lund, Sweden * Correspondence: [email protected] Abstract: Preeclampsia (PE) is a pregnancy disorder associated with placental dysfunction and elevated fetal hemoglobin (HbF). Early in pregnancy the placenta harbors hematopoietic stem and progenitor cells (HSPCs) and is an extramedullary source of erythropoiesis. However, globin ex- pression is not unique to erythroid cells and can be triggered by hypoxia. To investigate the role of the placenta in increasing globin levels previously reported in PE, flow cytometry, histological and Citation: Masoumi, Z.; Erlandsson, immunostaining and in situ analyses were used on placenta samples and ex vivo explant cultures. L.; Hansson, E.; Magnusson, M.; Our results indicated that in PE pregnancies, placental HSPC homing and erythropoiesis were not Mezey, E.; Hansson, S.R. affected. Non-erythroid alpha-globin mRNA and protein, but not gamma-globin, were detected in Hypoxia-Induced Alpha-Globin Expression in Syncytiotrophoblasts syncytiotrophoblasts and stroma of PE placenta samples.
    [Show full text]
  • Structural Characterization of Polysaccharides from Cordyceps Militaris and Their Hypolipidemic Effects Cite This: RSC Adv.,2018,8,41012 in High Fat Diet Fed Mice†
    RSC Advances View Article Online PAPER View Journal | View Issue Structural characterization of polysaccharides from Cordyceps militaris and their hypolipidemic effects Cite this: RSC Adv.,2018,8,41012 in high fat diet fed mice† Zhen-feng Huang, ‡ Ming-long Zhang,‡ Song Zhang,* Ya-hui Wang and Xue-wen Jiang Cordyceps militaris is a crude dietary therapeutic mushroom with high nutritional and medicinal values. Mushroom-derived polysaccharides have been found to possess antihyperglycemic and antihyperlipidemic activities. This study aimed to partially clarify the structural characterization and comparatively evaluate hypolipidemic potentials of intracellular- (IPCM) and extracellular polysaccharides of C. militaris (EPCM) in high fat diet fed mice. Results indicated that IPCM-2 is a-pyran polysaccharide with an average molecular weight of 32.5 kDa, was mainly composed of mannose, glucose and galactose with mass percentages of 51.94%, 10.54%, and 37.25%, respectively. EPCM-2 is an a-pyran Creative Commons Attribution 3.0 Unported Licence. polysaccharide with an average molecular weight of 20 kDa that is mainly composed of mannose, glucose and galactose with mass percentages of 44.51%, 18.33%, and 35.38%, respectively. In in vivo study, EPCM-1 treatment (100 mg kgÀ1 dÀ1) showed potential effects on improving serum lipid profiles of hyperlipidemic mice, reflected by decreasing serum total cholesterol (TC), triglyceride (TG) and low density lipoprotein-cholesterol (LDL-C) levels by 20.05%, 45.45% and 52.63%, respectively, while IPCM-1 treatment
    [Show full text]
  • Table S1 the Four Gene Sets Derived from Gene Expression Profiles of Escs and Differentiated Cells
    Table S1 The four gene sets derived from gene expression profiles of ESCs and differentiated cells Uniform High Uniform Low ES Up ES Down EntrezID GeneSymbol EntrezID GeneSymbol EntrezID GeneSymbol EntrezID GeneSymbol 269261 Rpl12 11354 Abpa 68239 Krt42 15132 Hbb-bh1 67891 Rpl4 11537 Cfd 26380 Esrrb 15126 Hba-x 55949 Eef1b2 11698 Ambn 73703 Dppa2 15111 Hand2 18148 Npm1 11730 Ang3 67374 Jam2 65255 Asb4 67427 Rps20 11731 Ang2 22702 Zfp42 17292 Mesp1 15481 Hspa8 11807 Apoa2 58865 Tdh 19737 Rgs5 100041686 LOC100041686 11814 Apoc3 26388 Ifi202b 225518 Prdm6 11983 Atpif1 11945 Atp4b 11614 Nr0b1 20378 Frzb 19241 Tmsb4x 12007 Azgp1 76815 Calcoco2 12767 Cxcr4 20116 Rps8 12044 Bcl2a1a 219132 D14Ertd668e 103889 Hoxb2 20103 Rps5 12047 Bcl2a1d 381411 Gm1967 17701 Msx1 14694 Gnb2l1 12049 Bcl2l10 20899 Stra8 23796 Aplnr 19941 Rpl26 12096 Bglap1 78625 1700061G19Rik 12627 Cfc1 12070 Ngfrap1 12097 Bglap2 21816 Tgm1 12622 Cer1 19989 Rpl7 12267 C3ar1 67405 Nts 21385 Tbx2 19896 Rpl10a 12279 C9 435337 EG435337 56720 Tdo2 20044 Rps14 12391 Cav3 545913 Zscan4d 16869 Lhx1 19175 Psmb6 12409 Cbr2 244448 Triml1 22253 Unc5c 22627 Ywhae 12477 Ctla4 69134 2200001I15Rik 14174 Fgf3 19951 Rpl32 12523 Cd84 66065 Hsd17b14 16542 Kdr 66152 1110020P15Rik 12524 Cd86 81879 Tcfcp2l1 15122 Hba-a1 66489 Rpl35 12640 Cga 17907 Mylpf 15414 Hoxb6 15519 Hsp90aa1 12642 Ch25h 26424 Nr5a2 210530 Leprel1 66483 Rpl36al 12655 Chi3l3 83560 Tex14 12338 Capn6 27370 Rps26 12796 Camp 17450 Morc1 20671 Sox17 66576 Uqcrh 12869 Cox8b 79455 Pdcl2 20613 Snai1 22154 Tubb5 12959 Cryba4 231821 Centa1 17897
    [Show full text]
  • The Roles of Histone Deacetylase 5 and the Histone Methyltransferase Adaptor WDR5 in Myc Oncogenesis
    The Roles of Histone Deacetylase 5 and the Histone Methyltransferase Adaptor WDR5 in Myc oncogenesis By Yuting Sun This thesis is submitted in fulfilment of the requirements for the degree of Doctor of Philosophy at the University of New South Wales Children’s Cancer Institute Australia for Medical Research School of Women’s and Children’s Health, Faculty of Medicine University of New South Wales Australia August 2014 PLEASE TYPE THE UNIVERSITY OF NEW SOUTH WALES Thesis/Dissertation Sheet Surname or Family name: Sun First name: Yuting Other name/s: Abbreviation for degree as given in the University calendar: PhD School : School of·Women's and Children's Health Faculty: Faculty of Medicine Title: The Roles of Histone Deacetylase 5 and the Histone Methyltransferase Adaptor WDR5 in Myc oncogenesis. Abstract 350 words maximum: (PLEASE TYPE) N-Myc Induces neuroblastoma by regulating the expression of target genes and proteins, and N-Myc protein is degraded by Fbxw7 and NEDD4 and stabilized by Aurora A. The class lla histone deacetylase HDAC5 suppresses gene transcription, and blocks myoblast and leukaemia cell differentiation. While histone H3 lysine 4 (H3K4) trimethylation at target gene promoters is a pre-requisite for Myc· induced transcriptional activation, WDRS, as a histone H3K4 methyltransferase presenter, is required for H3K4 methylation and transcriptional activation mediated by a histone H3K4 methyltransferase complex. Here, I investigated the roles of HDAC5 and WDR5 in N-Myc overexpressing neuroblastoma. I have found that N-Myc upregulates HDAC5 protein expression, and that HDAC5 represses NEDD4 gene expression, increases Aurora A gene expression and consequently upregulates N-Myc protein expression in neuroblastoma cells.
    [Show full text]
  • A Computational Approach for Defining a Signature of Β-Cell Golgi Stress in Diabetes Mellitus
    Page 1 of 781 Diabetes A Computational Approach for Defining a Signature of β-Cell Golgi Stress in Diabetes Mellitus Robert N. Bone1,6,7, Olufunmilola Oyebamiji2, Sayali Talware2, Sharmila Selvaraj2, Preethi Krishnan3,6, Farooq Syed1,6,7, Huanmei Wu2, Carmella Evans-Molina 1,3,4,5,6,7,8* Departments of 1Pediatrics, 3Medicine, 4Anatomy, Cell Biology & Physiology, 5Biochemistry & Molecular Biology, the 6Center for Diabetes & Metabolic Diseases, and the 7Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; 2Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202; 8Roudebush VA Medical Center, Indianapolis, IN 46202. *Corresponding Author(s): Carmella Evans-Molina, MD, PhD ([email protected]) Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, Telephone: (317) 274-4145, Fax (317) 274-4107 Running Title: Golgi Stress Response in Diabetes Word Count: 4358 Number of Figures: 6 Keywords: Golgi apparatus stress, Islets, β cell, Type 1 diabetes, Type 2 diabetes 1 Diabetes Publish Ahead of Print, published online August 20, 2020 Diabetes Page 2 of 781 ABSTRACT The Golgi apparatus (GA) is an important site of insulin processing and granule maturation, but whether GA organelle dysfunction and GA stress are present in the diabetic β-cell has not been tested. We utilized an informatics-based approach to develop a transcriptional signature of β-cell GA stress using existing RNA sequencing and microarray datasets generated using human islets from donors with diabetes and islets where type 1(T1D) and type 2 diabetes (T2D) had been modeled ex vivo. To narrow our results to GA-specific genes, we applied a filter set of 1,030 genes accepted as GA associated.
    [Show full text]
  • Supplementary Table 3 Complete List of RNA-Sequencing Analysis of Gene Expression Changed by ≥ Tenfold Between Xenograft and Cells Cultured in 10%O2
    Supplementary Table 3 Complete list of RNA-Sequencing analysis of gene expression changed by ≥ tenfold between xenograft and cells cultured in 10%O2 Expr Log2 Ratio Symbol Entrez Gene Name (culture/xenograft) -7.182 PGM5 phosphoglucomutase 5 -6.883 GPBAR1 G protein-coupled bile acid receptor 1 -6.683 CPVL carboxypeptidase, vitellogenic like -6.398 MTMR9LP myotubularin related protein 9-like, pseudogene -6.131 SCN7A sodium voltage-gated channel alpha subunit 7 -6.115 POPDC2 popeye domain containing 2 -6.014 LGI1 leucine rich glioma inactivated 1 -5.86 SCN1A sodium voltage-gated channel alpha subunit 1 -5.713 C6 complement C6 -5.365 ANGPTL1 angiopoietin like 1 -5.327 TNN tenascin N -5.228 DHRS2 dehydrogenase/reductase 2 leucine rich repeat and fibronectin type III domain -5.115 LRFN2 containing 2 -5.076 FOXO6 forkhead box O6 -5.035 ETNPPL ethanolamine-phosphate phospho-lyase -4.993 MYO15A myosin XVA -4.972 IGF1 insulin like growth factor 1 -4.956 DLG2 discs large MAGUK scaffold protein 2 -4.86 SCML4 sex comb on midleg like 4 (Drosophila) Src homology 2 domain containing transforming -4.816 SHD protein D -4.764 PLP1 proteolipid protein 1 -4.764 TSPAN32 tetraspanin 32 -4.713 N4BP3 NEDD4 binding protein 3 -4.705 MYOC myocilin -4.646 CLEC3B C-type lectin domain family 3 member B -4.646 C7 complement C7 -4.62 TGM2 transglutaminase 2 -4.562 COL9A1 collagen type IX alpha 1 chain -4.55 SOSTDC1 sclerostin domain containing 1 -4.55 OGN osteoglycin -4.505 DAPL1 death associated protein like 1 -4.491 C10orf105 chromosome 10 open reading frame 105 -4.491
    [Show full text]
  • TNAP As a New Player in Chronic Inflammatory Conditions And
    International Journal of Molecular Sciences Review TNAP as a New Player in Chronic Inflammatory Conditions and Metabolism Stephanie Graser 1,*, Daniel Liedtke 2,† and Franz Jakob 1,† 1 Bernhard-Heine-Center for Locomotion Research, Department of Orthopedics, Julius-Maximilians-University Würzburg, 97076 Würzburg, Germany; [email protected] 2 Institute for Human Genetics, Biocenter, Julius-Maximilians-University Würzburg, 97074 Würzburg, Germany; [email protected] * Correspondence: [email protected] † These authors contributed equally to this work. Abstract: This review summarizes important information on the ectoenzyme tissue-nonspecific alkaline phosphatase (TNAP) and gives a brief insight into the symptoms, diagnostics, and treatment of the rare disease Hypophosphatasia (HPP), which is resulting from mutations in the TNAP encoding ALPL gene. We emphasize the role of TNAP beyond its well-known contribution to mineralization processes. Therefore, above all, the impact of the enzyme on central molecular processes in the nervous system and on inflammation is presented here. Keywords: TNAP; Hypophosphatasia; HPP; mineralization; nervous system; inflammation 1. Structure, Function, and Substrates of TNAP Tissue-nonspecific alkaline phosphatase (TNAP) or liver/bone/kidney alkaline phos- phatase is an ectoenzyme that is anchored to the outer cell membrane (e.g. in osteoblasts) Citation: Graser, S.; Liedtke, D.; and to extracellular vesicles via its glycosyl-inositol-phosphate (GPI)-anchor [1,2]. TNAP Jakob, F. TNAP as a New Player in belongs to the family of alkaline phosphatases (AP) that comprises in humans three addi- Chronic Inflammatory Conditions tional tissue-specific isoforms: placental (PLAP, ALPP National Center for Biotechnology and Metabolism. Int.
    [Show full text]
  • Functional Annotations of Single-Nucleotide Polymorphism
    CLINICAL RESEARCH e-ISSN 1643-3750 © Med Sci Monit, 2020; 26: e922710 DOI: 10.12659/MSM.922710 Received: 2020.01.08 Accepted: 2020.02.20 Functional Annotations of Single-Nucleotide Available online: 2020.03.30 Published: 2020.05.25 Polymorphism (SNP)-Based and Gene-Based Genome-Wide Association Studies Show Genes Affecting Keratitis Susceptibility Authors’ Contribution: BCDEF 1 Yue Xu* 1 Department of Ophthalmology, First Affiliated Hospital of Soochow University, Study Design A BCDEF 2 Xiao-Lin Yang* Suzhou, Jiangsu, P.R. China Data Collection B 2 Center for Genetic Epidemiology and Genomics, School of Public Health, Medical Statistical Analysis C BCD 1 Xiao-Long Yang College of Soochow University, Suzhou, Jiangsu, P.R. China Data Interpretation D BC 1 Ya-Ru Ren Manuscript Preparation E BC 1 Xin-Yu Zhuang Literature Search F Funds Collection G ADE 2 Lei Zhang ADE 1 Xiao-Feng Zhang * Yue Xu and Xiao-Lin Yang contributed equally Corresponding Authors: Xiao-Feng Zhang, e-mail: [email protected], Lei Zhang, e-mail: [email protected] Source of support: Departmental sources Background: Keratitis is a complex condition in humans and is the second most common cause of legal blindness worldwide. Material/Methods: To reveal the genomic loci underlying keratitis, we performed functional annotations of SNP-based and gene- based genome-wide association studies of keratitis in the UK Biobank (UKB) cohort with 337 199 subjects of European ancestry. Results: The publicly available SNP-based association results showed a total of 34 SNPs, from 14 distinct loci, associated with keratitis in the UKB. Gene-based association analysis identified 2 significant genes:IQCF3 (p=2.0×10–6) and SOD3 (p=2.0×10–6).
    [Show full text]
  • Biochemical and Cellular Studies of Vertebrate Globins
    Biochemical and Cellular Studies of Vertebrate Globins By Shun Wilford Tse Thesis submitted for the degree of Doctor of Philosophy School of Biological Sciences University of East Anglia September 2015 © This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with the author and that no quotations from the thesis, nor any information derived there-from may be published without the author's prior, written consent. Abstract Human cytoglobin is a small heme-containing protein in the globin superfamily with a wide range of tissue and organ distribution. Although several cellular functions have been proposed for cytoglobin, the exact physiological function is still not fully defined. Recently, cytoglobin has been implicated to have a regulatory role in cancer cells to control cell proliferation and migration depending on cellular oxygen level. In order to gain a better understanding of a structure-to-function relationship of cytoglobin as a heme-protein and to evaluate its possible physiological function(s) in cancer cells, a combination of techniques, including protein engineering and advanced spectroscopies, was deployed. In this study, recombinant human cytoglobin purified from E.coli was purified as a monomeric protein, but displayed a dimeric property in solution. An intra-molecular disulphide bond is formed within the protein which has a redox potential at ca -280 mV. Advanced spectroscopic studies confirmed a low-spin bis-histidyl heme in cytoglobin in both ferric and ferrous state regardless of the state of the disulphide bond. Furthermore, nitrite reductase activitiy in globins was investigated in detail using myoglobin as a model to explore the biochemical basis of the distal histidine residue in determining activity.
    [Show full text]
  • Longitudinal Peripheral Blood Transcriptional Analysis of COVID-19 Patients
    medRxiv preprint doi: https://doi.org/10.1101/2020.05.05.20091355; this version posted May 8, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission. 1 Longitudinal peripheral blood transcriptional analysis of COVID-19 patients 2 captures disease progression and reveals potential biomarkers 3 Qihong Yan1,5,†, Pingchao Li1,†, Xianmiao Ye1,†, Xiaohan Huang1,5,†, Xiaoneng Mo2, 4 Qian Wang1, Yudi Zhang1, Kun Luo1, Zhaoming Chen1, Jia Luo1, Xuefeng Niu3, Ying 5 Feng3, Tianxing Ji3, Bo Feng3, Jinlin Wang2, Feng Li2, Fuchun Zhang2, Fang Li2, 6 Jianhua Wang1, Liqiang Feng1, Zhilong Chen4,*, Chunliang Lei2,*, Linbing Qu1,*, Ling 7 Chen1,2,3,4,* 8 1Guangzhou Regenerative Medicine and Health-Guangdong Laboratory 9 (GRMH-GDL), Guangdong Laboratory of Computational Biomedicine, Guangzhou 10 Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 11 China 12 2Guangzhou Institute of Infectious Disease, Guangzhou Eighth People’s Hospital, 13 Guangzhou Medical University, Guangzhou, China 14 3State Key Laboratory of Respiratory Disease, National Clinical Research Center for 15 Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated 16 Hospital of Guangzhou Medical University, Guangzhou, China 17 4School of Medicine, Huaqiao University, Xiamen, China 18 5University of Chinese Academy of Science, Beijing, China 19 †These authors contributed equally to this work. 20 *To whom correspondence should be addressed: Ling Chen ([email protected]), 21 Linbing Qu ([email protected]), Chunliang Lei ([email protected]), Zhilong 22 Chen ([email protected]) NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice.
    [Show full text]
  • T-Brain Regulates Archenteron Induction Signal 5207 Range of Amplification
    Development 129, 5205-5216 (2002) 5205 Printed in Great Britain © The Company of Biologists Limited 2002 DEV5034 T-brain homologue (HpTb) is involved in the archenteron induction signals of micromere descendant cells in the sea urchin embryo Takuya Fuchikami1, Keiko Mitsunaga-Nakatsubo1, Shonan Amemiya2, Toshiya Hosomi1, Takashi Watanabe1, Daisuke Kurokawa1,*, Miho Kataoka1, Yoshito Harada3, Nori Satoh3, Shinichiro Kusunoki4, Kazuko Takata1, Taishin Shimotori1, Takashi Yamamoto1, Naoaki Sakamoto1, Hiraku Shimada1 and Koji Akasaka1,† 1Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan 2Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 3Department of Zoology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan 4LSL, Nerima-ku, Tokyo 178-0061, Japan *Present address: Evolutionary Regeneration Biology Group, RIKEN Center for Developmental Biology, Kobe 650-0047, Japan †Author for correspondence (e-mail: [email protected]) Accepted 30 July 2002 SUMMARY Signals from micromere descendants play a crucial role in cells, the initial specification of primary mesenchyme cells, sea urchin development. In this study, we demonstrate that or the specification of endoderm. HpTb expression is these micromere descendants express HpTb, a T-brain controlled by nuclear localization of β-catenin, suggesting homolog of Hemicentrotus pulcherrimus. HpTb is expressed that
    [Show full text]