Immunology; an Illustrated Outline; Sixth Edition
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
BAFF-Neutralizing Interaction of Belimumab Related to Its Therapeutic Efficacy for Treating Systemic Lupus Erythematosus
ARTICLE DOI: 10.1038/s41467-018-03620-2 OPEN BAFF-neutralizing interaction of belimumab related to its therapeutic efficacy for treating systemic lupus erythematosus Woori Shin1, Hyun Tae Lee1, Heejin Lim1, Sang Hyung Lee1, Ji Young Son1, Jee Un Lee1, Ki-Young Yoo1, Seong Eon Ryu2, Jaejun Rhie1, Ju Yeon Lee1 & Yong-Seok Heo1 1234567890():,; BAFF, a member of the TNF superfamily, has been recognized as a good target for auto- immune diseases. Belimumab, an anti-BAFF monoclonal antibody, was approved by the FDA for use in treating systemic lupus erythematosus. However, the molecular basis of BAFF neutralization by belimumab remains unclear. Here our crystal structure of the BAFF–belimumab Fab complex shows the precise epitope and the BAFF-neutralizing mechanism of belimumab, and demonstrates that the therapeutic activity of belimumab involves not only antagonizing the BAFF–receptor interaction, but also disrupting the for- mation of the more active BAFF 60-mer to favor the induction of the less active BAFF trimer through interaction with the flap region of BAFF. In addition, the belimumab HCDR3 loop mimics the DxL(V/L) motif of BAFF receptors, thereby binding to BAFF in a similar manner as endogenous BAFF receptors. Our data thus provides insights for the design of new drugs targeting BAFF for the treatment of autoimmune diseases. 1 Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea. 2 Department of Bio Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea. These authors contributed equally: Woori Shin, Hyun Tae Lee, Heejin Lim, Sang Hyung Lee. -
Lactoferrin and Its Detection Methods: a Review
nutrients Review Lactoferrin and Its Detection Methods: A Review Yingqi Zhang, Chao Lu and Jin Zhang * Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON N6A 5B9, Canada; [email protected] (Y.Z.); [email protected] (C.L.) * Correspondence: [email protected] Abstract: Lactoferrin (LF) is one of the major functional proteins in maintaining human health due to its antioxidant, antibacterial, antiviral, and anti-inflammatory activities. Abnormal levels of LF in the human body are related to some serious diseases, such as inflammatory bowel disease, Alzheimer’s disease and dry eye disease. Recent studies indicate that LF can be used as a biomarker for diagnosis of these diseases. Many methods have been developed to detect the level of LF. In this review, the biofunctions of LF and its potential to work as a biomarker are introduced. In addition, the current methods of detecting lactoferrin have been presented and discussed. We hope that this review will inspire efforts in the development of new sensing systems for LF detection. Keywords: lactoferrin; biomarkers; immunoassay; instrumental analysis; sensor 1. Introduction Lactoferrin (known as lactotransferrin, LF), with a molecular weight of about 80 kDa, is a functional glycoprotein, which contains about 690 amino acid residues. It was first isolated from bovine milk by Sorensen in 1939 and was first isolated from human milk by Citation: Zhang, Y.; Lu, C.; Zhang, J. Johanson in 1960 [1,2]. The three-dimensional structure of LF has been unveiled by high Lactoferrin and Its Detection resolution X-ray crystallographic analysis, and it consists of two homologous globular lobes Methods: A Review. -
Primary Sjogren Syndrome: Focus on Innate Immune Cells and Inflammation
Review Primary Sjogren Syndrome: Focus on Innate Immune Cells and Inflammation Chiara Rizzo 1, Giulia Grasso 1, Giulia Maria Destro Castaniti 1, Francesco Ciccia 2 and Giuliana Guggino 1,* 1 Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, Piazza delle Cliniche 2, 90110 Palermo, Italy; [email protected] (C.R.); [email protected] (G.G.); [email protected] (G.M.D.C.) 2 Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138 Naples, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-091-6552260 Received: 30 April 2020; Accepted: 29 May 2020; Published: 3 June 2020 Abstract: Primary Sjogren Syndrome (pSS) is a complex, multifactorial rheumatic disease that mainly targets salivary and lacrimal glands, inducing epithelitis. The cause behind the autoimmunity outbreak in pSS is still elusive; however, it seems related to an aberrant reaction to exogenous triggers such as viruses, combined with individual genetic pre-disposition. For a long time, autoantibodies were considered as the hallmarks of this disease; however, more recently the complex interplay between innate and adaptive immunity as well as the consequent inflammatory process have emerged as the main mechanisms of pSS pathogenesis. The present review will focus on innate cells and on the principal mechanisms of inflammation connected. In the first part, an overview of innate cells involved in pSS pathogenesis is provided, stressing in particular the role of Innate Lymphoid Cells (ILCs). Subsequently we have highlighted the main inflammatory pathways, including intra- and extra-cellular players. -
Ocrevus (Ocrelizumab) Policy Number: C11250-A
Prior Authorization Criteria Ocrevus (ocrelizumab) Policy Number: C11250-A CRITERIA EFFECTIVE DATES: ORIGINAL EFFECTIVE DATE LAST REVIEWED DATE NEXT REVIEW DUE BY OR BEFORE 8/1/2017 2/17/2021 4/26/2022 LAST P&T J CODE TYPE OF CRITERIA APPROVAL/VERSION J2350-injection,ocrelizumab, Q2 2021 RxPA 1mg 20200428C11250-A PRODUCTS AFFECTED: Ocrevus (ocrelizumab) DRUG CLASS: Multiple Sclerosis Agents - Monoclonal Antibodies ROUTE OF ADMINISTRATION: Intravenous PLACE OF SERVICE: Specialty Pharmacy or Buy and Bill The recommendation is that medications in this policy will be for pharmacy benefit coverage and the IV infusion products administered in a place of service that is a non-hospital facility-based location (i.e., home infusion provider, provider’s office, free-standing ambulatory infusion center) AVAILABLE DOSAGE FORMS: Ocrevus SOLN 300MG/10ML FDA-APPROVED USES: Indicated for the treatment of: • Relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing- remitting disease, and active secondary progressive disease, in adults • Primary progressive MS, in adults COMPENDIAL APPROVED OFF-LABELED USES: None COVERAGE CRITERIA: INITIAL AUTHORIZATION DIAGNOSIS: Multiple Sclerosis REQUIRED MEDICAL INFORMATION: A. RELAPSING FORMS OF MULTIPLE SCLEROSIS: 1. Documentation of a definitive diagnosis of a relapsing form of multiple sclerosis as defined by the McDonald criteria (see Appendix), including: Relapsing- remitting multiple sclerosis [RRMS], secondary-progressive multiple sclerosis [SPMS] with relapses, and progressive- relapsing multiple sclerosis [PRMS] or First clinical episode with MRI features consistent with multiple sclerosis Molina Healthcare, Inc. confidential and proprietary © 2021 This document contains confidential and proprietary information of Molina Healthcare and cannot be reproduced, distributed, or printed without written permission from Molina Healthcare. -
Vaccination and Autoimmune Disease: What Is the Evidence?
REVIEW Review Vaccination and autoimmune disease: what is the evidence? David C Wraith, Michel Goldman, Paul-Henri Lambert As many as one in 20 people in Europe and North America have some form of autoimmune disease. These diseases arise in genetically predisposed individuals but require an environmental trigger. Of the many potential environmental factors, infections are the most likely cause. Microbial antigens can induce cross-reactive immune responses against self-antigens, whereas infections can non-specifically enhance their presentation to the immune system. The immune system uses fail-safe mechanisms to suppress infection-associated tissue damage and thus limits autoimmune responses. The association between infection and autoimmune disease has, however, stimulated a debate as to whether such diseases might also be triggered by vaccines. Indeed there are numerous claims and counter claims relating to such a risk. Here we review the mechanisms involved in the induction of autoimmunity and assess the implications for vaccination in human beings. Autoimmune diseases affect about 5% of individuals in Autoimmune disease and infection developed countries.1 Although the prevalence of most Human beings have a highly complex immune system autoimmune diseases is quite low, their individual that evolved from the fairly simple system found in incidence has greatly increased over the past few years, as invertebrates. The so-called innate invertebrate immune documented for type 1 diabetes2,3 and multiple sclerosis.4 system responds non-specifically to infection, does not Several autoimmune disorders arise in individuals in age- involve lymphocytes, and hence does not display groups that are often selected as targets for vaccination memory. -
Autoimmunity and Organ Damage in Systemic Lupus Erythematosus
REVIEW ARTICLE https://doi.org/10.1038/s41590-020-0677-6 Autoimmunity and organ damage in systemic lupus erythematosus George C. Tsokos ✉ Impressive progress has been made over the last several years toward understanding how almost every aspect of the immune sys- tem contributes to the expression of systemic autoimmunity. In parallel, studies have shed light on the mechanisms that contribute to organ inflammation and damage. New approaches that address the complicated interaction between genetic variants, epigen- etic processes, sex and the environment promise to enlighten the multitude of pathways that lead to what is clinically defined as systemic lupus erythematosus. It is expected that each patient owns a unique ‘interactome’, which will dictate specific treatment. t took almost 100 years to realize that lupus erythematosus, strongly to the heterogeneity of the disease. Several genes linked to which was initially thought to be a skin entity, is a systemic the immune response are regulated through long-distance chroma- Idisease that spares no organ and that an aberrant autoimmune tin interactions10,11. Studies addressing long-distance interactions response is involved in its pathogenesis. The involvement of vital between gene variants in SLE are still missing, but, with the advent organs and tissues such as the brain, blood and the kidney in most of new technologies, such studies will emerge. patients, the vast majority of whom are women of childbearing age, Better understanding of the epigenome is needed to under- impels efforts to develop diagnostic tools and effective therapeu- stand how it supplements the genetic contribution to the dis- tics. The prevalence ranges from 20 to 150 cases per 100,000 peo- ease. -
White Blood Cells and Severe COVID-19: a Mendelian Randomization Study
Journal of Personalized Medicine Article White Blood Cells and Severe COVID-19: A Mendelian Randomization Study Yitang Sun 1 , Jingqi Zhou 1,2 and Kaixiong Ye 1,3,* 1 Department of Genetics, Franklin College of Arts and Sciences, University of Georgia, Athens, GA 30602, USA; [email protected] (Y.S.); [email protected] (J.Z.) 2 School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China 3 Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA * Correspondence: [email protected]; Tel.: +1-706-542-5898; Fax: +1-706-542-3910 Abstract: Increasing evidence shows that white blood cells are associated with the risk of coronavirus disease 2019 (COVID-19), but the direction and causality of this association are not clear. To evaluate the causal associations between various white blood cell traits and the COVID-19 susceptibility and severity, we conducted two-sample bidirectional Mendelian Randomization (MR) analyses with summary statistics from the largest and most recent genome-wide association studies. Our MR results indicated causal protective effects of higher basophil count, basophil percentage of white blood cells, and myeloid white blood cell count on severe COVID-19, with odds ratios (OR) per standard deviation increment of 0.75 (95% CI: 0.60–0.95), 0.70 (95% CI: 0.54–0.92), and 0.85 (95% CI: 0.73–0.98), respectively. Neither COVID-19 severity nor susceptibility was associated with white blood cell traits in our reverse MR results. Genetically predicted high basophil count, basophil percentage of white blood cells, and myeloid white blood cell count are associated with a lower risk of developing severe COVID-19. -
B Cell Activation and Escape of Tolerance Checkpoints: Recent Insights from Studying Autoreactive B Cells
cells Review B Cell Activation and Escape of Tolerance Checkpoints: Recent Insights from Studying Autoreactive B Cells Carlo G. Bonasia 1 , Wayel H. Abdulahad 1,2 , Abraham Rutgers 1, Peter Heeringa 2 and Nicolaas A. Bos 1,* 1 Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, 9713 Groningen, GZ, The Netherlands; [email protected] (C.G.B.); [email protected] (W.H.A.); [email protected] (A.R.) 2 Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 Groningen, GZ, The Netherlands; [email protected] * Correspondence: [email protected] Abstract: Autoreactive B cells are key drivers of pathogenic processes in autoimmune diseases by the production of autoantibodies, secretion of cytokines, and presentation of autoantigens to T cells. However, the mechanisms that underlie the development of autoreactive B cells are not well understood. Here, we review recent studies leveraging novel techniques to identify and characterize (auto)antigen-specific B cells. The insights gained from such studies pertaining to the mechanisms involved in the escape of tolerance checkpoints and the activation of autoreactive B cells are discussed. Citation: Bonasia, C.G.; Abdulahad, W.H.; Rutgers, A.; Heeringa, P.; Bos, In addition, we briefly highlight potential therapeutic strategies to target and eliminate autoreactive N.A. B Cell Activation and Escape of B cells in autoimmune diseases. Tolerance Checkpoints: Recent Insights from Studying Autoreactive Keywords: autoimmune diseases; B cells; autoreactive B cells; tolerance B Cells. Cells 2021, 10, 1190. https:// doi.org/10.3390/cells10051190 Academic Editor: Juan Pablo de 1. -
Case of the Anti HIV-1 Antibody, B12
Spectrum of Somatic Hypermutations and Implication on Antibody Function: Case of the anti HIV-1 antibody, b12 Mesfin Mulugeta Gewe A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington 2015 Reading Committee: Roland Strong, Chair Nancy Maizels Jessica A. Hamerman Program Authorized to Offer Degree: Molecular and Cellular Biology i ii ©Copyright 2015 Mesfin Mulugeta Gewe iii University of Washington Abstract Spectrum of Somatic Hypermutations and Implication on Antibody Function: Case of the anti HIV-1 antibody, b12 Mesfin Mulugeta Gewe Chair of the Supervisory Committee: Roland Strong, Full Member Fred Hutchinson Cancer Research Center Sequence diversity, ability to evade immune detection and establishment of human immunodeficiency virus type 1 (HIV-1) latent reservoirs present a formidable challenge to the development of an HIV-1 vaccine. Structure based vaccine design stenciled on infection elicited broadly neutralizing antibodies (bNAbs) is a promising approach, in some measure to circumvent existing challenges. Understanding the antibody maturation process and importance of the high frequency mutations observed in anti-HIV-1 broadly neutralizing antibodies are imperative to the success of structure based vaccine immunogen design. Here we report a biochemical and structural characterization for the affinity maturation of infection elicited neutralizing antibodies IgG1 b12 (b12). We investigated the importance of affinity maturation and mutations accumulated therein in overall antibody function and their potential implications to vaccine development. Using a panel of point iv reversions, we examined relevance of individual amino acid mutations acquired during the affinity maturation process to deduce the role of somatic hypermutation in antibody function. -
Practice Guideline: Disease-Modifying Therapies for Adults with Multiple Sclerosis
Practice guideline: Disease-modifying therapies for adults with multiple sclerosis Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology Alexander Rae-Grant, MD1; Gregory S. Day, MD, MSc2; Ruth Ann Marrie, MD, PhD3; Alejandro Rabinstein, MD4; Bruce A.C. Cree, MD, PhD, MAS5; Gary S. Gronseth, MD6; Michael Haboubi, DO7; June Halper, MSN, APN-C, MSCN8; Jonathan P. Hosey, MD9; David E. Jones, MD10; Robert Lisak, MD11; Daniel Pelletier, MD12; Sonja Potrebic, MD, PhD13; Cynthia Sitcov14; Rick Sommers, LMSW15; Julie Stachowiak, PhD16; Thomas S.D. Getchius17; Shannon A. Merillat, MLIS18; Tamara Pringsheim, MD, MSc19 1. Department of Neurology, Cleveland Clinic, OH 2. Department of Neurology, Charles F. and Joanne Knight Alzheimer Disease Research Center, Washington University in St. Louis, MO 3. Departments of Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada 4. Department of Neurology, Mayo Clinic, Rochester, MN 5. UCSF Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco 6. Department of Neurology, Kansas University Medical Center, Kansas City 7. Department of Neurology, School of Medicine, University of Louisville, KY 8. Consortium of Multiple Sclerosis Centers, Hackensack, NJ 9. Department of Neuroscience, St. Luke’s University Health Network, Bethlehem, PA 10. Department of Neurology, School of Medicine, University of Virginia, Charlottesville 11. Consortium of Multiple Sclerosis Centers, Hackensack, NJ, and Department of Neurology, School of Medicine, Wayne State University, Detroit, MI 12. Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles 13. Neurology Department, Southern California Permanente Medical Group, Kaiser, Los Angeles 14. -
Interleukins in Therapeutics
67 ISSN: 2347 - 7881 Review Article Interleukins in Therapeutics Anjan Khadka Department of Pharmacology, AFMC, Pune, India [email protected] ABSTRACT Interleukins are a subset of a larger group of cellular messenger molecules called cytokines, which are modulators of cellular behaviour. On the basis of their respective cytokine profiles, responses to chemokines, and interactions with other cells, these T-cell subsets can promote different types of inflammatory responses. During the development of allergic disease, effector TH2 cells produce IL-4, IL- 5, IL-9, and IL-32. IL-25, IL- 31, and IL-33 contributes to TH2 responses and inflammation. These cytokines have roles in production of allergen-specific IgE, eosinophilia, and mucus. ILs have role in therapeutics as well as diagnosis and prognosis as biomarker in various conditions. Therapeutic targeting of the IL considered to be rational treatment strategy and promising biologic therapy. Keywords: Interleukins, cytokines, Interleukin Inhibitors, Advances INTRODUCTION meaning ‘hormones’. It was Stanley Cohen in Interleukins are group of cytokines that were 1974 who for the first time introduced the term first seen to be expressed by leucocytes and ‘‘cytokine’’. It includes lymphokines, they interact between cells of the immune monokines, interleukins, and colony stimulating systems. It is termed by Dr. Vern Paetkau factors (CSFs), interferons (IFNs), tumor (University of Victoria) in1979.Interleukins (IL) necrosis factor (TNF) and chemokines. The are able to promote cell growth, differentiation, majority of interleukins are synthesized by and functional activation. The question of how helper CD4 T lymphocytes as well as through diverse cell types communicate with each monocytes, macrophages, and endothelial cells. -
Challenges and Approaches for the Development of Safer Immunomodulatory Biologics
REVIEWS Challenges and approaches for the development of safer immunomodulatory biologics Jean G. Sathish1*, Swaminathan Sethu1*, Marie-Christine Bielsky2, Lolke de Haan3, Neil S. French1, Karthik Govindappa1, James Green4, Christopher E. M. Griffiths5, Stephen Holgate6, David Jones2, Ian Kimber7, Jonathan Moggs8, Dean J. Naisbitt1, Munir Pirmohamed1, Gabriele Reichmann9, Jennifer Sims10, Meena Subramanyam11, Marque D. Todd12, Jan Willem Van Der Laan13, Richard J. Weaver14 and B. Kevin Park1 Abstract | Immunomodulatory biologics, which render their therapeutic effects by modulating or harnessing immune responses, have proven their therapeutic utility in several complex conditions including cancer and autoimmune diseases. However, unwanted adverse reactions — including serious infections, malignancy, cytokine release syndrome, anaphylaxis and hypersensitivity as well as immunogenicity — pose a challenge to the development of new (and safer) immunomodulatory biologics. In this article, we assess the safety issues associated with immunomodulatory biologics and discuss the current approaches for predicting and mitigating adverse reactions associated with their use. We also outline how these approaches can inform the development of safer immunomodulatory biologics. Immunomodulatory Biologics currently represent more than 30% of licensed The high specificity of the interactions of immu- biologics pharmaceutical products and have expanded the thera- nomodulatory biologics with their relevant immune Biotechnology-derived peutic options available