DOCSLIB.ORG

Complement C3a Receptor

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Complement C3a Receptor Molecular Pharmacology of C3aR Modulators MRS RANEE SINGH D.V.M. (Doctor of Veterinary Medicine) M.Sc. (Pharmacology) M.Vet.Studies (Laboratory) A thesis submitted for the degree of Doctor of Philosophy at The University of Queensland in 2012 Institute for Molecular Bioscience i ABSTRACT The complement system plays key roles in both the innate (non-specific) and acquired (specific) immune response. Complement activation is a tightly regulated process, which takes place in a sequential manner by at least three pathways. All of these pathways generate a small anaphylatoxin protein called C3a. C3a signals immune cells which infiltrate to sites of infection or injury and mount inflammatory responses leading to elimination of pathogens or damaged cells and induction of adaptive immunity. Genetic deficiency of C3 results in susceptibility to bacterial infection. However, in excess C3a can be harmful and catalyses the pathogenesis of many disease conditions. To date, there have been no truly selective and potent C3a receptor agonists/antagonists. Therefore, the purpose of this thesis was to explore the potential to develop a small molecule C3aR agonist/antagonist that can be a useful as a pharmacological probe or biomarker for studying the physiological and pharmacological roles of C3a. Chapter 1 briefly describes basic pharmacology terminology and reviews current knowledge of GPCRs, GPCR intracellular signalling pathways, C3a and C3a-C3aR related intracellular signalling pathways. Understanding the pro-inflammatory roles of C3a and its receptor in vitro and in vivo may provide a new therapeutic target for autoimmune diseases or inflammatory conditions. Chapter 2 reinvestigated reported C3a receptor ligands in a competitive binding assay and a functional assay. Compound affinity was measured by competitive binding against [125I]-C3a (80 pM). Compound functional potency (agonist or antagonist) was measured by fluorescent detection of intracellular calcium release in differentiated U937 cells. Receptor selectivity was measured by receptor desensitization using C3a or C5a, and by competitive binding with [125I]-C5a. C3aR superagonist peptide (WWGKKYRASKLGLAR) and newly reported pentapeptides WPLPR (15) and YPLPR (14) (oryzatensin derivatives) were found to have no selectivity or agonist potency for C3aR. Four decapeptides (8-11) reported as C5aR agonists were shown to be more selective for C3aR than C5aR in a competitive binding assay on human isolated monocytes. Structure-activity relationships (SAR) were studied for new hexapeptides by calcium release, FWTLAR (20) (EC50 350 nM) and FLTLAR (17) (EC50 320 nM). They bound selectively to C3aR (IC50 82 nM, IC50 42 nM respectively) on human PBMCs with no binding to C5aR. Selectivity was confirmed by receptor desensitisation experiments. A new C3aR peptide antagonist (F1LTChaAR6) was obtained by modifying the leucine at position 4 with the bulkier group Cha, showing no agonist activity and binding tightly to C3aR (IC50 238 nM). Chapter 3 introduces an oxazole heterocycle into short peptides to restrict conformation freedom in an attempt to mimic the C3aR-binding conformation of the C-terminal activating domain of human ii C3a. This approach produced multiple potent C3aR agonists, including some with equal affinity to C3a itself and selectivity for C3aR over C5aR on isolated monocyte derived macrophage cells (HMDM). There was a linear correlation between the binding affinity of the compounds and their agonist potency. Chapter 4 describes two approaches for obtaining antagonists of C3aR and shows some structure-activity relationships. Firstly, a potent new C3aR agonist (56) from Chapter 3 was modified by incorporation of a phenyl group at the 5-position of oxazole ring, which improved C3aR binding affinity and led to a novel and potent nonpeptidic C3aR antagonist. Secondly, new non-peptidic agonists of C3aR were developed from the first reported C3aR antagonist by modification of either the linker or hydrophobic region of SB290157 with retention of the terminal arginine. Several potent C3aR antagonists were developed from an oxazole-containing compound by incorporating a phenyl group at the 5-position of oxazole ring. Two other compounds were derived by modifying SB290157 at the linker region through incorporation of a thiazole or oxazole ring. Chapter 5 explores the antagonist mechanism of non-peptidic C3aR antagonist, SB290157 and newly developed antagonist 146, as well as the peptidic antagonist FLTChaAR (25). It reports competition with three different classes of C3aR agonists: hC3a, two potent new hexapeptide analogues (17 and 20) and two potent new non-peptide agonists (63 and 80). SB290157 and 146 show competitive and surmountable antagonism against the hexapeptide agonists (17 and 20) and non-peptide agonist (63 and 80), supporting binding at the same site(s) on C3aR. Compound 25 showed insurmountable antagonism of all agonists (hC3a, 17, 20, 63 and 80), suggesting that 25 binds different sites from these compounds or it may be caused by C3aR internalisation or (pseudo) irreversible binding to C3aR. However, 25 is unlikely to be an allosteric antagonist due to competition with C3a radioligand in a competitive binding assay. In summary, this study has investigated and reported new C3aR agonists and antagonists that can be used to probe influences of C3a/C3aR in physiology and pharmacology. iii DECLARATION BY AUTHOR This thesis is composed of my original work, and contains no material previously published or written by another person except where due reference has been made in the text. I have clearly stated the contribution by others to jointly-authored works that I have included in my thesis. I have clearly stated the contribution of others to my thesis as a whole, including statistical assistance, survey design, data analysis, significant technical procedures, professional editorial advice, and any other original research work used or reported in my thesis. The content of my thesis is the result of work I have carried out since the commencement of my research higher degree candidature and does not include a substantial part of work that has been submitted to qualify for the award of any other degree or diploma in any university or other tertiary institution. I have clearly stated which parts of my thesis, if any, have been submitted to qualify for another award. I acknowledge that an electronic copy of my thesis must be lodged with the University Library and, subject to the General Award Rules of The University of Queensland, immediately made available for research and study in accordance with the Copyright Act 1968. I acknowledge that copyright of all material contained in my thesis resides with the copyright holder(s) of that material. Where appropriate I have obtained copyright permission from the copyright holder to reproduce material in this thesis. iv Publications during candidature Conor C. G. Scully; Jade S. Blackeney; Ranee Singh; Huy N. Hoang; Giovanni Abbenante; Robert C. Reid and David P. Fairlie. Selective Hexapeptide Agonists and Antagonists for Human Complement C3a Receptor. J. Med. Chem. 2010, 53, 4938-4948. Conference Abstracts: Singh, R., Scully, C., Chu, P.,Blackeney, J.,Hoang,H., Abbenante, J., Reid, R. and Fairlie, D.P. (2010). Agonists and Antagonists of the human C3a Receptor. Proceedings of Chemistry and Structural Biology Division Symposium (IMB), UQ. Singh, R., Reid, R., Chu P., Reed T. and Fairlie D.P. (2011) Towards human C3a Receptor Antagonists. Proceedings of Chemistry and Structural Biology Division Symposium (IMB), UQ. Publications included in this thesis Conor C. G. Scully; Jade S. Blackeney; Ranee Singh; Huy N. Hoang; Giovanni Abbenante; Robert C. Reid and David P. Fairlie. Selective Hexapeptide Agonists and Antagonists for Human Complement C3a Receptor. J. Med. Chem. 2010, 53, 4938-4948. – Partially incorporated as paragraphs in Chapter 2. Contributor Statement of contribution Singh, R. Designed and performed cell pharmacology experiments (90%) Analysis of the data (90 %) Fairlie, D.P. Intellectual input, project conception and planning, scientific guidance and review and analysis of results (70%) Reid, R.C. Intellectual input, project conception and planning, scientific guidance and review and analysis of results (30%) Scully, C.G.C. Structural design, synthesis and characterisation of compounds (80%) NMR studies (50%) Hoang, H.N. NMR studies (50%) Blakney, J.S. Structural design, synthesis and characterisation v of compounds (20%) Performed experiments some compounds in calcium release assays (10%) Analysis of the data (10%) Contributions by others to the thesis My supervisors, Prof. David Fairlie, Dr. Robert Reid and Dr. Conor Scully all contributed intellectually to this thesis through data analysis, discussion, scientific guidance and critical review of the project; Dr. Scully and Dr. Reid have contributed by manufacturing the majority of the compounds tested in this thesis. Statement of parts of the thesis submitted to qualify for the award of another degree “None.” vi ACKNOWLEDGEMENTS I would like to acknowledge the assistance of a number of people who have helped me throughout my PhD. First, my supervisor who gave me opportunities to do the interesting projects. I gratefully acknowledge his wisdom, advice and support. I also would like to thank my co- supervisors Dr. Scully and Dr. Reid for their kind advice and assistance, without which I would never have made it to the end. I also would like to thank all the members of the Fairlie
Load more

Recommended publications
  • Edinburgh Research Explorer
    Edinburgh Research Explorer International Union of Basic and Clinical Pharmacology. LXXXVIII. G protein-coupled receptor list Citation for published version: Davenport, AP, Alexander, SPH, Sharman, JL, Pawson, AJ, Benson, HE, Monaghan, AE, Liew, WC, Mpamhanga, CP, Bonner, TI, Neubig, RR, Pin, JP, Spedding, M & Harmar, AJ 2013, 'International Union of Basic and Clinical Pharmacology. LXXXVIII. G protein-coupled receptor list: recommendations for new pairings with cognate ligands', Pharmacological reviews, vol. 65, no. 3, pp. 967-86. https://doi.org/10.1124/pr.112.007179 Digital Object Identifier (DOI): 10.1124/pr.112.007179 Link: Link to publication record in Edinburgh Research Explorer Document Version: Publisher's PDF, also known as Version of record Published In: Pharmacological reviews Publisher Rights Statement: U.S. Government work not protected by U.S. copyright General rights Copyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorer content complies with UK legislation. If you believe that the public display of this file breaches copyright please contact [email protected] providing details, and we will remove access to the work immediately and investigate your claim. Download date: 02. Oct. 2021 1521-0081/65/3/967–986$25.00 http://dx.doi.org/10.1124/pr.112.007179 PHARMACOLOGICAL REVIEWS Pharmacol Rev 65:967–986, July 2013 U.S.
    [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]
  • Neutrophil Chemoattractant Receptors in Health and Disease: Double-Edged Swords
    Cellular & Molecular Immunology www.nature.com/cmi REVIEW ARTICLE Neutrophil chemoattractant receptors in health and disease: double-edged swords Mieke Metzemaekers1, Mieke Gouwy1 and Paul Proost 1 Neutrophils are frontline cells of the innate immune system. These effector leukocytes are equipped with intriguing antimicrobial machinery and consequently display high cytotoxic potential. Accurate neutrophil recruitment is essential to combat microbes and to restore homeostasis, for inflammation modulation and resolution, wound healing and tissue repair. After fulfilling the appropriate effector functions, however, dampening neutrophil activation and infiltration is crucial to prevent damage to the host. In humans, chemoattractant molecules can be categorized into four biochemical families, i.e., chemotactic lipids, formyl peptides, complement anaphylatoxins and chemokines. They are critically involved in the tight regulation of neutrophil bone marrow storage and egress and in spatial and temporal neutrophil trafficking between organs. Chemoattractants function by activating dedicated heptahelical G protein-coupled receptors (GPCRs). In addition, emerging evidence suggests an important role for atypical chemoattractant receptors (ACKRs) that do not couple to G proteins in fine-tuning neutrophil migratory and functional responses. The expression levels of chemoattractant receptors are dependent on the level of neutrophil maturation and state of activation, with a pivotal modulatory role for the (inflammatory) environment. Here, we provide an overview
    [Show full text]
  • Host-Parasite Interaction of Atlantic Salmon (Salmo Salar) and the Ectoparasite Neoparamoeba Perurans in Amoebic Gill Disease
    ORIGINAL RESEARCH published: 31 May 2021 doi: 10.3389/fimmu.2021.672700 Host-Parasite Interaction of Atlantic salmon (Salmo salar) and the Ectoparasite Neoparamoeba perurans in Amoebic Gill Disease † Natasha A. Botwright 1*, Amin R. Mohamed 1 , Joel Slinger 2, Paula C. Lima 1 and James W. Wynne 3 1 Livestock and Aquaculture, CSIRO Agriculture and Food, St Lucia, QLD, Australia, 2 Livestock and Aquaculture, CSIRO Agriculture and Food, Woorim, QLD, Australia, 3 Livestock and Aquaculture, CSIRO Agriculture and Food, Hobart, TAS, Australia Marine farmed Atlantic salmon (Salmo salar) are susceptible to recurrent amoebic gill disease Edited by: (AGD) caused by the ectoparasite Neoparamoeba perurans over the growout production Samuel A. M. Martin, University of Aberdeen, cycle. The parasite elicits a highly localized response within the gill epithelium resulting in United Kingdom multifocal mucoid patches at the site of parasite attachment. This host-parasite response Reviewed by: drives a complex immune reaction, which remains poorly understood. To generate a model Diego Robledo, for host-parasite interaction during pathogenesis of AGD in Atlantic salmon the local (gill) and University of Edinburgh, United Kingdom systemic transcriptomic response in the host, and the parasite during AGD pathogenesis was Maria K. Dahle, explored. A dual RNA-seq approach together with differential gene expression and system- Norwegian Veterinary Institute (NVI), Norway wide statistical analyses of gene and transcription factor networks was employed. A multi- *Correspondence: tissue transcriptomic data set was generated from the gill (including both lesioned and non- Natasha A. Botwright lesioned tissue), head kidney and spleen tissues naïve and AGD-affected Atlantic salmon [email protected] sourced from an in vivo AGD challenge trial.
    [Show full text]
  • Investigation of the Underlying Hub Genes and Molexular Pathogensis in Gastric Cancer by Integrated Bioinformatic Analyses
    bioRxiv preprint doi: https://doi.org/10.1101/2020.12.20.423656; this version posted December 22, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Investigation of the underlying hub genes and molexular pathogensis in gastric cancer by integrated bioinformatic analyses Basavaraj Vastrad1, Chanabasayya Vastrad*2 1. Department of Biochemistry, Basaveshwar College of Pharmacy, Gadag, Karnataka 582103, India. 2. Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad 580001, Karanataka, India. * Chanabasayya Vastrad [email protected] Ph: +919480073398 Chanabasava Nilaya, Bharthinagar, Dharwad 580001 , Karanataka, India bioRxiv preprint doi: https://doi.org/10.1101/2020.12.20.423656; this version posted December 22, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Abstract The high mortality rate of gastric cancer (GC) is in part due to the absence of initial disclosure of its biomarkers. The recognition of important genes associated in GC is therefore recommended to advance clinical prognosis, diagnosis and and treatment outcomes. The current investigation used the microarray dataset GSE113255 RNA seq data from the Gene Expression Omnibus database to diagnose differentially expressed genes (DEGs). Pathway and gene ontology enrichment analyses were performed, and a proteinprotein interaction network, modules, target genes - miRNA regulatory network and target genes - TF regulatory network were constructed and analyzed. Finally, validation of hub genes was performed. The 1008 DEGs identified consisted of 505 up regulated genes and 503 down regulated genes.
    [Show full text]
  • Regulation of Immune Cells by Eicosanoid Receptors
    Regulation of Immune Cells by Eicosanoid Receptors The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Kim, Nancy D., and Andrew D. Luster. 2007. “Regulation of Immune Cells by Eicosanoid Receptors.” The Scientific World Journal 7 (1): 1307-1328. doi:10.1100/tsw.2007.181. http://dx.doi.org/10.1100/ tsw.2007.181. Published Version doi:10.1100/tsw.2007.181 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:37298366 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA Review Article Special Issue: Eicosanoid Receptors and Inflammation TheScientificWorldJOURNAL (2007) 7, 1307–1328 ISSN 1537-744X; DOI 10.1100/tsw.2007.181 Regulation of Immune Cells by Eicosanoid Receptors Nancy D. Kim and Andrew D. Luster* Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston E-mail: [email protected] Received March 13, 2007; Revised June 14, 2007; Accepted July 2, 2007; Published September 1, 2007 Eicosanoids are potent, bioactive, lipid mediators that regulate important components of the immune response, including defense against infection, ischemia, and injury, as well as instigating and perpetuating autoimmune and inflammatory conditions. Although these lipids have numerous effects on diverse cell types and organs, a greater understanding of their specific effects on key players of the immune system has been gained in recent years through the characterization of individual eicosanoid receptors, the identification and development of specific receptor agonists and inhibitors, and the generation of mice genetically deficient in various eicosanoid receptors.
    [Show full text]
  • Complement Pathway Biomarkers and Age-Related Macular Degeneration
    Eye (2016) 30, 1–14 © 2016 Macmillan Publishers Limited All rights reserved 0950-222X/16 www.nature.com/eye 1 2,3 Complement pathway M Gemenetzi and AJ Lotery REVIEW biomarkers and age- related macular degeneration Abstract In the age-related macular degeneration accounts for 35% of all cases of late AMD and (AMD) ‘inflammation model’, local inflamma- 20% of legal blindness attributable to AMD,4,5 tion plus complement activation contributes to cannot be treated or prevented at the moment the pathogenesis and progression of the dis- and indeed may be increased by anti-VEGF ease. Multiple genetic associations have now therapy.6,7 been established correlating the risk of devel- In this review, we present and comment on opment or progression of AMD. Stratifying the response to both complement and non- patients by their AMD genetic profile may complement-based treatments, in relation to facilitate future AMD therapeutic trials result- complement pathway mechanisms and ing in meaningful clinical trial end points with complement gene regulation of these smaller sample sizes and study duration. mechanisms. We discuss current and potential – Eye (2016) 30, 1 14; doi:10.1038/eye.2015.203; treatments for both wet and dry AMD in relation published online 23 October 2015 to complement pathway pathogenetic 1Royal Eye Unit, Kingston mechanisms. Hospital NHS Foundation Trust, Kingston Upon Thames, UK Introduction The complement system Based on the pioneering work of Dr Judah The innate immune system is composed of 2Southampton Eye Unit, ‘ ’ Folkman, novel research into angiogenesis immunological effectors that provide robust, Southampton University Hospital, Southampton, UK generated the commercial development of drugs immediate, and nonspecific immune responses.
    [Show full text]
  • An Unexpected Role for the Anaphylatoxin C5a Receptor in Allergic Sensitization Bart N
    commentaries fied mice with minimal or no steady-state Phone: (314) 362-8834; Fax: (314) 362-8826; 7. Socolovsky, M., et al. 2001. Ineffective erythropoie- sis in Stat5a(–/–)5b(–/–) mice due to decreased sur- phenotype. In many ways these mice could E-mail: [email protected]. vival of early erythroblasts. Blood. 98:3261–3273. be viewed as models for otherwise normal 8. Zang, H., et al. 2001. The distal region and receptor adult humans who exhibit exaggerated or 1. Palis, J., and Segel, G.B. 1998. Developmental biol- tyrosines of the Epo receptor are non-essential for ogy of erythropoiesis. Blood Rev. 12:106–114. in vivo erythropoiesis. EMBO J. 20:3156–3166. unexpected responses to inflammation, 2. Obinata, M., and Yanai, N. 1999. Cellular and 9. D’Andrea, A.D., et al. 1991. The cytoplasmic region infectious agents, or cancer progression. molecular regulation of an erythropoietic induc- of the erythropoietin receptor contains nonover- As such, they have the potential to identify tive microenvironment (EIM). Cell Struct. Funct. lapping positive and negative growth-regulatory 24:171–179. and dissect regulatory pathways that influ- domains. Mol. Cell. Biol. 11:1980–1987. 3. Menon, M.P., et al. 2006. Signals for stress erythro- 10. Wagner, K.U., et al. 2000. Conditional deletion of the ence but do not cause disease. poiesis are integrated via an erythropoietin receptor– Bcl-x gene from erythroid cells results in hemolytic phosphotyrosine-343–Stat5 axis. J. Clin. Invest. anemia and profound splenomegaly. Development. Acknowledgments 116:683–694. doi:10.1172/JCI25227. 127:4949–4958. 4. Teglund, S., et al.
    [Show full text]
  • An Overview on G Protein-Coupled Receptor-Induced Signal Transduction in Acute Myeloid Leukemia
    An overview on G protein-coupled receptor-induced signal transduction in Acute Myeloid Leukemia 1* 1,3 4,5,6 2* Frode Selheim , Elise Aasebø , Catalina Ribas and Anna M. Aragay 1The Proteomics Unit at the University of Bergen, Department of Biomedicine, University of Bergen, Jonas Lies vei 91, 5020 Bergen, Norway; 3 Department of Clinical Science, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway; [email protected]. 2Departamento de Biologia Celular. Instituto de Biología Molecular de Barcelona (IBMB-CSIC), Spanish National Research Council (CSIC), Baldiri i Reixac, 15, 08028 Barcelona, Spain; [email protected]. 4Departamento de Biología Molecular and Centro de Biología Molecular “Severo Ochoa” (UAM-CSIC), 28049 Madrid, Spain; 5Instituto de Investigación Sanitaria La Princesa, 28006 Madrid, Spain; 6CIBER de Enfermedades Cardiovasculares, ISCIII (CIBERCV), 28029 Madrid, Spain, [email protected] * Corresponding authors: Frode Selheim Adr: Jonas Lies vei 91, 5020 Bergen, Norway Email: [email protected], Tel:+4755586091 Anna M. Aragay Adr: Baldiri i Reixac, 15, 08028 Barcelona. Spain. E-mail: [email protected]; Tel.: +934098671 1 Abstract Background: Acute myeloid leukemia (AML) is a genetically heterogeneous disease characterized by uncontrolled proliferation of precursor myeloid-lineage cells in the bone marrow. AML is also characterized with patients with poor long-term survival outcomes due to relapse. Many efforts have been made to understand the biological heterogeneity of AML and the challenges to develop new therapies are therefore enormous. G protein-coupled receptors (GPCRs) are a large attractive drug targeted family of transmembrane proteins, and aberrant GPCR expression and GPCR-mediated signaling have been implicated in leukemogenesis of AML.
    [Show full text]
  • G Protein-Coupled Receptors
    S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2015/16: G protein-coupled receptors. British Journal of Pharmacology (2015) 172, 5744–5869 THE CONCISE GUIDE TO PHARMACOLOGY 2015/16: G protein-coupled receptors Stephen PH Alexander1, Anthony P Davenport2, Eamonn Kelly3, Neil Marrion3, John A Peters4, Helen E Benson5, Elena Faccenda5, Adam J Pawson5, Joanna L Sharman5, Christopher Southan5, Jamie A Davies5 and CGTP Collaborators 1School of Biomedical Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK, 2Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK, 3School of Physiology and Pharmacology, University of Bristol, Bristol, BS8 1TD, UK, 4Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK, 5Centre for Integrative Physiology, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2015/16 provides concise overviews of the key properties of over 1750 human drug targets with their pharmacology, plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. The full contents can be found at http://onlinelibrary.wiley.com/doi/ 10.1111/bph.13348/full. G protein-coupled receptors are one of the eight major pharmacological targets into which the Guide is divided, with the others being: ligand-gated ion channels, voltage-gated ion channels, other ion channels, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading.
    [Show full text]
  • G Protein‐Coupled Receptors
    S.P.H. Alexander et al. The Concise Guide to PHARMACOLOGY 2019/20: G protein-coupled receptors. British Journal of Pharmacology (2019) 176, S21–S141 THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: G protein-coupled receptors Stephen PH Alexander1 , Arthur Christopoulos2 , Anthony P Davenport3 , Eamonn Kelly4, Alistair Mathie5 , John A Peters6 , Emma L Veale5 ,JaneFArmstrong7 , Elena Faccenda7 ,SimonDHarding7 ,AdamJPawson7 , Joanna L Sharman7 , Christopher Southan7 , Jamie A Davies7 and CGTP Collaborators 1School of Life Sciences, University of Nottingham Medical School, Nottingham, NG7 2UH, UK 2Monash Institute of Pharmaceutical Sciences and Department of Pharmacology, Monash University, Parkville, Victoria 3052, Australia 3Clinical Pharmacology Unit, University of Cambridge, Cambridge, CB2 0QQ, UK 4School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, BS8 1TD, UK 5Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK 6Neuroscience Division, Medical Education Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK 7Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK Abstract The Concise Guide to PHARMACOLOGY 2019/20 is the fourth in this series of biennial publications. The Concise Guide provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to the open access knowledgebase source of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide represents approximately 400 pages, the material presented is substantially reduced compared to information and links presented on the website.
    [Show full text]