Deciphering the T Cell Response in SARS-CoV-2 Infection
Deciphering the T Cell Response in SARS-CoV-2 Infection

Author: Alessio Mazzoni

Publisher: Frontiers Media SA

Published: 2024-07-22

Total Pages: 318

ISBN-13: 2832551955

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COVID-19 is a recently emerged infectious disease caused by the novel coronavirus SARS-CoV-2. The immune system has a primary role in pathogen elimination and a rapid and effective response can limit disease severity. In this context, T cells play the major role in cell mediated adaptive immune response. The protective role of CD4+ and CD8+ T cells has been inferred from studies on patients who recovered from SARS and MERS and accumulating data are now showing their relevance in SARS-CoV-2 infection. Moreover, memory T cells induced by previous pathogens can shape the susceptibility to, and the clinical severity of other infections, but the complete picture has yet to be elucidated. If the virus is not rapidly eliminated, COVID-19 may progress towards a secondary inflammatory phase that is directly responsible for a worsening in clinical symptoms and immune system impairment. Besides marked lymphopenia, COVID-19 patients’ T cell compartment displays several alterations involving different subpopulations of T cells in terms of phenotype, metabolic profile and functionality.

The Coronaviridae
The Coronaviridae

Author: Stuart G. Siddell

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 424

ISBN-13: 1489915311

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Coronaviruses were recognized as a group of enveloped, RNA viruses in 1968 and accepted by the International Committee on the Taxonomy of Viruses as a separate family, the Coronaviridae, in 1975. By 1978, it had become evident that the coronavirus genomic RNA was infectious (i. e. , positive strand), and by 1983, at least the framework of the coronavirus replication strategy had been per ceived. Subsequently, with the application of recombinant DNA techniques, there have been remarkable advances in our understanding of the molecular biology of coronaviruses, and a mass of structural data concerning coronavirus genomes, mRNAs, and pro teins now exists. More recently, attention has been focused on the role of essential and accessory gene products in the coronavirus replication cyde and a molecular analysis of the structure-function relation ships of coronavirus proteins. Nevertheless, there are still large gaps in our knowledge, for instance, in areas such as the genesis of coronavirus subgenomic mRNAs or the function of the coronavirus RNA-dependent RNA polymerase. The diseases caused by coronaviruses have been known for much longer than the agents themselves. Possibly the first coronavirus-related disease to be recorded was feline infectious peritonitis, as early as 1912. The diseases associ ated with infectious bronchitis virus, transmissible gastroenteritis virus, and murine hepatitis virus were all well known before 1950.

Immunology and Aging
Immunology and Aging

Author: Takashi Makinodan

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 215

ISBN-13: 1468425412

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In the classic sense, immunity is the ability of an organism to resist disease. On the one hand, we must distinguish between age and disease; on the other hand, the interaction between them is of considerable theoretical and practical interest. To the gerontologic research community, therefore, immunity also becomes the ability of an organism to resist age. Were the immune and other protective systems of the body able to maintain themselves over the course of time, and if there were no degradation related to age, the everyday loss of energy and vitality that occurs in the lives of older people as a consequence of viruses, arthritis, and other debilitating circumstances would be greatly lessened. The objective of gerontologists is not just to extend the life span but rather to improve the vigor, health, and quality oflife. To date, we have not developed a single index to measure immunity that is of use clinically in the evaluation of older people and of their immunologic compe tence. It may not be surprising that just such a clinical index may be available in the not-too-distant future. We can also look forward to the assembling of a greater body of information explaining how and why the immune system fails with age while, paradoxically, the incidence of autoimmune diseases increases with age. It is this latter phenomenon that may playa part in a wide range of chronic diseases from rheumatoid arthritis to senile dementia.

Understanding Coronavirus
Understanding Coronavirus

Author: Raul Rabadan

Publisher: Cambridge University Press

Published: 2021-10-14

Total Pages: 167

ISBN-13: 1009086650

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Since the identification of the first cases of the coronavirus in December 2019, there has been a significant amount of confusion regarding the origin and spread of the so-called 'coronavirus', SARS-CoV-2, and the cause of the disease COVID-19. Conflicting messages from the media and officials across different countries and organizations, the abundance of disparate sources of information, unfounded conspiracy theories on the origins of the virus, unproven therapies, and inconsistent public health measures, have all served to increase anxiety in the population. Where did the virus come from? How is it transmitted? How does it cause disease? Is it like flu? What is a pandemic? In this concise and accessible introduction, a leading expert provides answers to these commonly asked questions. This revised and updated edition now also covers how the virus mutates, how important these mutations are, how vaccines work, and what we can expect in the near and long-term future.

Rapid Expert Consultations on the COVID-19 Pandemic
Rapid Expert Consultations on the COVID-19 Pandemic

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2020-05-30

Total Pages: 81

ISBN-13: 0309676908

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In response to a request from the Office of Science and Technology Policy and the Office of the Assistant Secretary for Preparedness and Response, the National Academies of Sciences, Engineering, and Medicine convened a standing committee of experts to help inform the federal government on critical science and policy issues related to emerging infectious diseases and other 21st century health threats. This set of Rapid Expert Consultations are the first of their kind and represent the best evidence available to the Committee at the time each publication was released. The science on these issues is continually evolving, and the scientific consensus the Committee reaches on these topics will likely evolve with it. The standing committee includes members with expertise in emerging infectious diseases, public health, public health preparedness and response, biological sciences, clinical care and crisis standards of care, risk communication, and regulatory issues.

Janeway's Immunobiology
Janeway's Immunobiology

Author: Kenneth Murphy

Publisher: Garland Science

Published: 2010-06-22

Total Pages:

ISBN-13: 9780815344575

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The Janeway's Immunobiology CD-ROM, Immunobiology Interactive, is included with each book, and can be purchased separately. It contains animations and videos with voiceover narration, as well as the figures from the text for presentation purposes.

Cellular and Molecular Immunology E-Book
Cellular and Molecular Immunology E-Book

Author: Abul K. Abbas

Publisher: Elsevier Health Sciences

Published: 2011-05-06

Total Pages: 557

ISBN-13: 1437735738

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Cellular and Molecular Immunology takes a comprehensive yet straightforward approach to the latest developments in this active and fast-changing field. Drs. Abul K. Abbas, Andrew H. Lichtman, and Shiv Pillai present sweeping updates in this new edition to cover antigen receptors and signal transduction in immune cells, mucosal and skin immunity, cytokines, leukocyte-endothelial interaction, and more. This reference is the up-to-date and readable textbook you need to master the complex subject of immunology. - Recognize the clinical relevance of the immunology through discussions of the implications of immunologic science for the management of human disease. - Grasp the details of experimental observations that form the basis for the science of immunology at the molecular, cellular, and whole-organism levels and draw the appropriate conclusions. - Stay abreast of the latest advances in immunology and molecular biology through extensive updates that cover cytokines, innate immunity, leukocyte-endothelial interactions, signaling, costimulation, and more. - Visualize immunologic processes more effectively through a completely revised art program with redrawn figures, a brighter color palette, and more 3-dimensional art. - Find information more quickly and easily through a reorganized chapter structure and a more logical flow of material.

Structural Immunology
Structural Immunology

Author: Tengchuan Jin

Publisher: Springer Nature

Published: 2019-10-18

Total Pages: 234

ISBN-13: 9811393672

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This book presents a comprehensive overview of important immune molecules and their structure-function relationships. The immune system is highly complex, consisting of a network of molecules, cells, tissues and organs, and the immune reaction is involved in various physiological as well as pathological processes, including development, self-tolerance, infection, immunity, and cancer. Numerous molecules participate in immune recognition, inhibition and activation, and these important immune molecules can be roughly divided into cell surface receptors, intracellular receptors and intracellular signaling molecules. The study of how these immune molecules function at molecular level has laid the foundation for understanding the immune system. The book provides researchers and students with the latest research advances concerning the structural biology of key immune molecules/pathways, and offers immunologists essential insights into how these immune molecules function.

The Protective Arm of the Renin Angiotensin System (RAS)
The Protective Arm of the Renin Angiotensin System (RAS)

Author: Thomas Unger

Publisher: Academic Press

Published: 2015-04-18

Total Pages: 312

ISBN-13: 0128014857

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The Protective Arm of the Renin Angiotensin System: Functional Aspects and Therapeutic Implications is the first comprehensive publication to signal the protective role of a distinct part of the renin–angiotensin system (RAS), providing readers with early insight into a complex system which will become of major medical importance in the near future. Focusing on recent research, The Protective Arm of the Renin Angiotensin System presents a host of new experimental studies on specific components of the RAS, namely angiotensin AT2 receptors (AT2R), the angiotensin (1–7) peptide with its receptor Mas, and the enzyme ACE 2, which exert significant beneficial, health-promoting actions by counterbalancing the well-known harmful arm of the RAS with its classical angiotensin AT1 receptor. This innovative concept of the protective arm of the RAS, examined in this reference, represents an indispensable background and will be a strong support for biomedical students, researchers, cardiologists, surgeons, nephrologists, diabetologists, and endocrinologists, as well as any other physician or researcher concerned with RAS physiology, pathophysiology and clinical implications. - Provides a complete understanding of the protective side of the Renin Angiotensin System (RAS) involving angiotensin AT2 receptor, ACE2, and Ang(1-7)/Mas receptor - Combines the knowledge of editors who pioneered research on the protective renin angiotensin system including; Dr. Thomas Unger, one of the founders of AT2 receptor research; Dr. Ulrike M. Steckelings, who contributed significantly to first preclinical studies with a novel specific AT2-agonist, and Dr. Robson Santos who pioneered research on angiotensin-(1-7) and its receptor Mas. - Shows that the protective RAS axes are able to ameliorate the course of several cardiovascular, renal, metabolic and neurological diseases - Provides the basis for the understanding of a novel therapeutic approach to stimulate components of the protective arm of the RAS.