Role of CD4+T cell sub-populations in allergic asthma

Role of CD4+T cell sub-populations in allergic asthma

Author: Shakti P. Pattanayak

Publisher: GRIN Verlag

Published: 2016-07-27

Total Pages: 47

ISBN-13: 3656985499

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Scientific Essay from the year 2016 in the subject Medicine - Pharmacology, Pharmacy, , language: English, abstract: Asthma is a chronic disorder specifically characterized by severe inflammation and constriction, mucus hyper-secretion and hyper-responsiveness in the airway. Allergic Asthma (AA) is characterized by discontinuous airway obstruction that may cause temporary to severe asphyxiation and can consequence into death. Airway obstruction in asthma is because of rigorous inflammation concerning multi-cellular components together with eosinophils, neutrophils, CD4+T lymphocytes & mast cells, with eosinophilic infiltration being the most conspicuous feature. The multifaceted phenotype of AA suggested being elevated from multiple interactions of infiltrating and structural cells that is coordinated by T helper 2 (TH2) cells consequential in chronic airway inflammation. By extremely secreting convinced mediators like interleukin (IL)-4, IL-5, and IL-13, which grasps a key point in asthma pathogenesis cause erratic degree of broncho-obstruction, increased mucus production, and airway remodeling. There are a variety of T cell which plays a significant role in AA that is TH1, TH2, TH17, regulatory T cell, TH3 TH22, TH25, TH9 and others. There are various molecular signaling molecules such as STAT4, FOXp3, GATA-3 and T-bet which regulates CD4+T cells in AA. Nowadays the approach to manage asthma is based on inhaled bronchodilator and corticosteroids. But the research is on the mechanism of some promising phytomedicines. we summarized here with some mechanisms of some flavonoids to alleviate AA through CD4+T cells. In conclusion, we found that the CD4+T-cell subpopulations played some major contribution in regulating/modulating the AA and interestingly, the natural potent anti-oxidant & anti- inflammatory compounds such as flavonoids could able to attenuate the AA by regulating these subpopulations of CD4+T-cells or the signaling molecules involved in the pathogenesis.


Book Synopsis Role of CD4+T cell sub-populations in allergic asthma by : Shakti P. Pattanayak

Download or read book Role of CD4+T cell sub-populations in allergic asthma written by Shakti P. Pattanayak and published by GRIN Verlag. This book was released on 2016-07-27 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Essay from the year 2016 in the subject Medicine - Pharmacology, Pharmacy, , language: English, abstract: Asthma is a chronic disorder specifically characterized by severe inflammation and constriction, mucus hyper-secretion and hyper-responsiveness in the airway. Allergic Asthma (AA) is characterized by discontinuous airway obstruction that may cause temporary to severe asphyxiation and can consequence into death. Airway obstruction in asthma is because of rigorous inflammation concerning multi-cellular components together with eosinophils, neutrophils, CD4+T lymphocytes & mast cells, with eosinophilic infiltration being the most conspicuous feature. The multifaceted phenotype of AA suggested being elevated from multiple interactions of infiltrating and structural cells that is coordinated by T helper 2 (TH2) cells consequential in chronic airway inflammation. By extremely secreting convinced mediators like interleukin (IL)-4, IL-5, and IL-13, which grasps a key point in asthma pathogenesis cause erratic degree of broncho-obstruction, increased mucus production, and airway remodeling. There are a variety of T cell which plays a significant role in AA that is TH1, TH2, TH17, regulatory T cell, TH3 TH22, TH25, TH9 and others. There are various molecular signaling molecules such as STAT4, FOXp3, GATA-3 and T-bet which regulates CD4+T cells in AA. Nowadays the approach to manage asthma is based on inhaled bronchodilator and corticosteroids. But the research is on the mechanism of some promising phytomedicines. we summarized here with some mechanisms of some flavonoids to alleviate AA through CD4+T cells. In conclusion, we found that the CD4+T-cell subpopulations played some major contribution in regulating/modulating the AA and interestingly, the natural potent anti-oxidant & anti- inflammatory compounds such as flavonoids could able to attenuate the AA by regulating these subpopulations of CD4+T-cells or the signaling molecules involved in the pathogenesis.


Indoor Allergens

Indoor Allergens

Author: National Research Council

Publisher: National Academies Press

Published: 1993-02-01

Total Pages: 321

ISBN-13: 0309048311

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More than 50 million Americans, one out of five, suffer from hay fever, asthma, and other allergic diseases. Many of these conditions are caused by exposure to allergens in indoor environments such as the house, work, and schoolâ€"where we spend as much as 98 percent of our time. Developed by medical, public health, and engineering professionals working together, this unique volume summarizes what is known about indoor allergens, how they affect human health, the magnitude of their effect on various populations, and how they can be controlled. The book addresses controversies, recommends research directions, and suggests how to assist and educate allergy patients, as well as professionals. Indoor Allergens presents a wealth of information about common indoor allergens and their varying effects, from significant hay fever to life-threatening asthma. The volume discusses sources of allergens, from fungi and dust mites to allergenic chemicals, plants, and animals, and examines practical measures for their control. Indoor Allergens discusses how the human airway and immune system respond to inhaled allergens and assesses patient testing methods, covering the importance of the patient's medical history and outlining procedures and approaches to interpretation for skin tests, in vitro diagnostic tests, and tests of patients' pulmonary function. This comprehensive and practical volume will be important to allergists and other health care providers; public health professionals; specialists in building design, construction, and maintenance; faculty and students in public health; and interested allergy patients.


Book Synopsis Indoor Allergens by : National Research Council

Download or read book Indoor Allergens written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 50 million Americans, one out of five, suffer from hay fever, asthma, and other allergic diseases. Many of these conditions are caused by exposure to allergens in indoor environments such as the house, work, and schoolâ€"where we spend as much as 98 percent of our time. Developed by medical, public health, and engineering professionals working together, this unique volume summarizes what is known about indoor allergens, how they affect human health, the magnitude of their effect on various populations, and how they can be controlled. The book addresses controversies, recommends research directions, and suggests how to assist and educate allergy patients, as well as professionals. Indoor Allergens presents a wealth of information about common indoor allergens and their varying effects, from significant hay fever to life-threatening asthma. The volume discusses sources of allergens, from fungi and dust mites to allergenic chemicals, plants, and animals, and examines practical measures for their control. Indoor Allergens discusses how the human airway and immune system respond to inhaled allergens and assesses patient testing methods, covering the importance of the patient's medical history and outlining procedures and approaches to interpretation for skin tests, in vitro diagnostic tests, and tests of patients' pulmonary function. This comprehensive and practical volume will be important to allergists and other health care providers; public health professionals; specialists in building design, construction, and maintenance; faculty and students in public health; and interested allergy patients.


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.


Book Synopsis Janeway's Immunobiology by : Kenneth Murphy

Download or read book Janeway's Immunobiology written by Kenneth Murphy and published by Garland Science. This book was released on 2010-06-22 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


T Cell Regulation in Allergy, Asthma and Atopic Skin Diseases

T Cell Regulation in Allergy, Asthma and Atopic Skin Diseases

Author: Kurt Blaser

Publisher: Karger Medical and Scientific Publishers

Published: 2008-01-01

Total Pages: 243

ISBN-13: 3805586280

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This book presents the state of the art in cellular and molecular mechanisms regulating the immune response in allergic inflammation. Special attention is given to the central role of regulatory T cells (Treg) in immune regulation and induction of peripheral tolerance, as well as to the relevance of Th17 cells in chronic inflammation. The importance of Treg and Th17 cells is demonstrated in bronchial asthma, atopic eczema, contact dermatitis and delayed-type hypersensitivity. Furthermore, T-cell-mediated regulatory mechanisms in helminthic infections and fungal allergy are discussed. Several chapters are devoted to the therapeutic consequences that these recently discovered T-cell functions may have. Their role as a potential target for specific immunotherapy is evaluated and novel approaches for peripheral tolerance induction and treatment of allergic and asthmatic diseases and inflammation are suggested. Stem cell transplantation as a future therapeutic intervention in regulatory T-cell disorders is also considered. Well edited and up to date, this volume is recommended reading for allergologists, immunologists, dermatologists and any scientist interested in the immunological events regulating allergic inflammation in general and allergic manifestations in different organs.


Book Synopsis T Cell Regulation in Allergy, Asthma and Atopic Skin Diseases by : Kurt Blaser

Download or read book T Cell Regulation in Allergy, Asthma and Atopic Skin Diseases written by Kurt Blaser and published by Karger Medical and Scientific Publishers. This book was released on 2008-01-01 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of the art in cellular and molecular mechanisms regulating the immune response in allergic inflammation. Special attention is given to the central role of regulatory T cells (Treg) in immune regulation and induction of peripheral tolerance, as well as to the relevance of Th17 cells in chronic inflammation. The importance of Treg and Th17 cells is demonstrated in bronchial asthma, atopic eczema, contact dermatitis and delayed-type hypersensitivity. Furthermore, T-cell-mediated regulatory mechanisms in helminthic infections and fungal allergy are discussed. Several chapters are devoted to the therapeutic consequences that these recently discovered T-cell functions may have. Their role as a potential target for specific immunotherapy is evaluated and novel approaches for peripheral tolerance induction and treatment of allergic and asthmatic diseases and inflammation are suggested. Stem cell transplantation as a future therapeutic intervention in regulatory T-cell disorders is also considered. Well edited and up to date, this volume is recommended reading for allergologists, immunologists, dermatologists and any scientist interested in the immunological events regulating allergic inflammation in general and allergic manifestations in different organs.


Immunotherapy in Asthma

Immunotherapy in Asthma

Author: Jean Bousquet

Publisher: CRC Press

Published: 1999-08-24

Total Pages: 0

ISBN-13: 9780824701765

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This massive reference thoroughly analyzes the mechanisms implicated in the pathophysiology of asthma, such as T helper lymphocyte subsets, and the consequences of various extrinsic and intrinsic factors, and IgE receptor expression-reviewing current concepts in immunotherapeutic approaches for the treatment of this and other allergic diseases. Investigates the only category of treatment showing the potential to affect the natural course of allergic diseases and prevent the onset of asthma. Written by more than 80 internationally renowned pulmonary experts, allergic disease specialists, and basic researchers, Immunotherapy in Asthma discusses the efficacy of new medications examines the role of metachromatic cells, lymphocytes, macrophages, and other cell types present in bronchial biopsies presents basic topics such as the functional and phenotypic properties of Th1 and Th2 cells and their role in allergic disease and the regulation of IgE-mediated inflammatory responses addresses the deleterious effects of smoking and passive exposure to cigarette smoke in children and adults assesses differences and similarities between intrinsic and antigen-induced asthma describes the effects of immunogenic peptides on the cytokine production profile of allergen-specific CD4+ T cells explains the different clinical aspects of allergic responses, such as bronchial hyperreactivity and eosinophilic inflammation of the airways reviews the genetic basis of allergy, as well as risk factors for asthma explores oral, sublingual, local nasal, and local bronchial routes for noninjective immunotherapies evaluates various agents with modulatory effects on normal and pathogenic immune responses focuses on strategies for the prevention of childhood asthma and more! Containing over 3000 references, drawings, and tables, Immunotherapy in Asthma is an indispensable resource for pulmonologists, immunologists, allergists, and medical school students in these disciplines.


Book Synopsis Immunotherapy in Asthma by : Jean Bousquet

Download or read book Immunotherapy in Asthma written by Jean Bousquet and published by CRC Press. This book was released on 1999-08-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This massive reference thoroughly analyzes the mechanisms implicated in the pathophysiology of asthma, such as T helper lymphocyte subsets, and the consequences of various extrinsic and intrinsic factors, and IgE receptor expression-reviewing current concepts in immunotherapeutic approaches for the treatment of this and other allergic diseases. Investigates the only category of treatment showing the potential to affect the natural course of allergic diseases and prevent the onset of asthma. Written by more than 80 internationally renowned pulmonary experts, allergic disease specialists, and basic researchers, Immunotherapy in Asthma discusses the efficacy of new medications examines the role of metachromatic cells, lymphocytes, macrophages, and other cell types present in bronchial biopsies presents basic topics such as the functional and phenotypic properties of Th1 and Th2 cells and their role in allergic disease and the regulation of IgE-mediated inflammatory responses addresses the deleterious effects of smoking and passive exposure to cigarette smoke in children and adults assesses differences and similarities between intrinsic and antigen-induced asthma describes the effects of immunogenic peptides on the cytokine production profile of allergen-specific CD4+ T cells explains the different clinical aspects of allergic responses, such as bronchial hyperreactivity and eosinophilic inflammation of the airways reviews the genetic basis of allergy, as well as risk factors for asthma explores oral, sublingual, local nasal, and local bronchial routes for noninjective immunotherapies evaluates various agents with modulatory effects on normal and pathogenic immune responses focuses on strategies for the prevention of childhood asthma and more! Containing over 3000 references, drawings, and tables, Immunotherapy in Asthma is an indispensable resource for pulmonologists, immunologists, allergists, and medical school students in these disciplines.


T Lymphocytes Subpopulations in Immunotoxicology

T Lymphocytes Subpopulations in Immunotoxicology

Author: Ian Kimber

Publisher: John Wiley & Sons

Published: 1998-08-17

Total Pages: 326

ISBN-13: 9780471971948

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Den T-Lymphocyten kommt eine Schlüsselrolle im Immunsystem zu: Sie sind unter anderem für Resistenzen gegenüber Infektionen und Tumoren und für die Entwicklung von Allergien und Autoimmunität verantwortlich. Bisher gab es kein vergleichbares Buch, das Funktionen und Subpopulationen der T-Zellen wie das vorliegende Werk von immunbiologischen Grundlagen ausgehend zusammenfassend darstellt.(05/98)


Book Synopsis T Lymphocytes Subpopulations in Immunotoxicology by : Ian Kimber

Download or read book T Lymphocytes Subpopulations in Immunotoxicology written by Ian Kimber and published by John Wiley & Sons. This book was released on 1998-08-17 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Den T-Lymphocyten kommt eine Schlüsselrolle im Immunsystem zu: Sie sind unter anderem für Resistenzen gegenüber Infektionen und Tumoren und für die Entwicklung von Allergien und Autoimmunität verantwortlich. Bisher gab es kein vergleichbares Buch, das Funktionen und Subpopulationen der T-Zellen wie das vorliegende Werk von immunbiologischen Grundlagen ausgehend zusammenfassend darstellt.(05/98)


Severe Asthma

Severe Asthma

Author: Kian Fan Chung

Publisher: European Respiratory Society

Published: 2019-06-01

Total Pages: 360

ISBN-13: 1849841047

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Severe asthma is a form of asthma that responds poorly to currently available medication, and its patients represent those with greatest unmet needs. In the last 10 years, substantial progress has been made in terms of understanding some of the mechanisms that drive severe asthma; there have also been concomitant advances in the recognition of specific molecular phenotypes. This ERS Monograph covers all aspects of severe asthma – epidemiology, diagnosis, mechanisms, treatment and management – but has a particular focus on recent understanding of mechanistic heterogeneity based on an analytic approach using various ‘omics platforms applied to clinically well-defined asthma cohorts. How these advances have led to improved management targets is also emphasised. This book brings together the clinical and scientific expertise of those from around the world who are collaborating to solve the problem of severe asthma.


Book Synopsis Severe Asthma by : Kian Fan Chung

Download or read book Severe Asthma written by Kian Fan Chung and published by European Respiratory Society. This book was released on 2019-06-01 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Severe asthma is a form of asthma that responds poorly to currently available medication, and its patients represent those with greatest unmet needs. In the last 10 years, substantial progress has been made in terms of understanding some of the mechanisms that drive severe asthma; there have also been concomitant advances in the recognition of specific molecular phenotypes. This ERS Monograph covers all aspects of severe asthma – epidemiology, diagnosis, mechanisms, treatment and management – but has a particular focus on recent understanding of mechanistic heterogeneity based on an analytic approach using various ‘omics platforms applied to clinically well-defined asthma cohorts. How these advances have led to improved management targets is also emphasised. This book brings together the clinical and scientific expertise of those from around the world who are collaborating to solve the problem of severe asthma.


Signaling Mechanisms Regulating T Cell Diversity and Function

Signaling Mechanisms Regulating T Cell Diversity and Function

Author: Jonathan Soboloff

Publisher: CRC Press

Published: 2017-03-27

Total Pages: 258

ISBN-13: 149870509X

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T cells play a vital role mediating adaptive immunity, a specific acquired resistance to an infectious agent produced by the introduction of an antigen. There are a variety of T cell types with different functions. They are called T cells, because they are derived from the thymus gland. This volume discusses how T cells are regulated through the operation of signaling mechanisms. Topics covered include positive and negative selection, early events in T cell receptor engagement, and various T cell subsets.


Book Synopsis Signaling Mechanisms Regulating T Cell Diversity and Function by : Jonathan Soboloff

Download or read book Signaling Mechanisms Regulating T Cell Diversity and Function written by Jonathan Soboloff and published by CRC Press. This book was released on 2017-03-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: T cells play a vital role mediating adaptive immunity, a specific acquired resistance to an infectious agent produced by the introduction of an antigen. There are a variety of T cell types with different functions. They are called T cells, because they are derived from the thymus gland. This volume discusses how T cells are regulated through the operation of signaling mechanisms. Topics covered include positive and negative selection, early events in T cell receptor engagement, and various T cell subsets.


CD4+CD25+ Regulatory T Cells: Origin, Function and Therapeutic Potential

CD4+CD25+ Regulatory T Cells: Origin, Function and Therapeutic Potential

Author: B. Kyewski

Publisher: Springer Science & Business Media

Published: 2006-01-09

Total Pages: 331

ISBN-13: 3540277021

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The vertebrate immune system defends the organism against invading pathogens while at the same time being self-tolerant to the body’s own constituents thus preserving its integrity. Multiple mechanisms work in concert to ensure self-tolerance. Apart from purging the T cell repertoire from auto-reactive T cells via negative selection in the thymus dominant tolerance exerted by regulatory T cells plays a major role in tolerance imposition and maintenance. Among the various regulatory/suppressive cells hitherto described, CD4+CD25+ regulatory T cells (Treg) and interleukin-10 producing T regulatory 1 (Tr1) cells have been studied in most detail and are the subject of most articles in this issue. Treg, also called "natural" regulatory T cells, will be traced from their intra-thymic origin to the site of their action in peripheral lymphoid organs and tissues. The repertoire of Treg is clearly biased towards recognition of self-antigens, thereby potentially preventing autoimmune diseases such as gastritis and oophoritis. Regulatory T cells, however also control infections, allergies and tolerance to transplanted tissues and this requires their induction in the periphery under conditions which are not yet fully understood. The concept of dominant tolerance, by far not novel, will offer new insights and hopefully tools for the successful treatment of autoimmune diseases, improved cancer immunotherapy and transplant survival. The fulfillment of these high expectations will, however, require their unambiguous identification and a better understanding of their mode of action.


Book Synopsis CD4+CD25+ Regulatory T Cells: Origin, Function and Therapeutic Potential by : B. Kyewski

Download or read book CD4+CD25+ Regulatory T Cells: Origin, Function and Therapeutic Potential written by B. Kyewski and published by Springer Science & Business Media. This book was released on 2006-01-09 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vertebrate immune system defends the organism against invading pathogens while at the same time being self-tolerant to the body’s own constituents thus preserving its integrity. Multiple mechanisms work in concert to ensure self-tolerance. Apart from purging the T cell repertoire from auto-reactive T cells via negative selection in the thymus dominant tolerance exerted by regulatory T cells plays a major role in tolerance imposition and maintenance. Among the various regulatory/suppressive cells hitherto described, CD4+CD25+ regulatory T cells (Treg) and interleukin-10 producing T regulatory 1 (Tr1) cells have been studied in most detail and are the subject of most articles in this issue. Treg, also called "natural" regulatory T cells, will be traced from their intra-thymic origin to the site of their action in peripheral lymphoid organs and tissues. The repertoire of Treg is clearly biased towards recognition of self-antigens, thereby potentially preventing autoimmune diseases such as gastritis and oophoritis. Regulatory T cells, however also control infections, allergies and tolerance to transplanted tissues and this requires their induction in the periphery under conditions which are not yet fully understood. The concept of dominant tolerance, by far not novel, will offer new insights and hopefully tools for the successful treatment of autoimmune diseases, improved cancer immunotherapy and transplant survival. The fulfillment of these high expectations will, however, require their unambiguous identification and a better understanding of their mode of action.


Human Eosinophils

Human Eosinophils

Author: Gianni Marone

Publisher: Karger Medical Scientific

Published: 2000

Total Pages: 0

ISBN-13: 9783805569743

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Eosinophils represent approximately 1% of peripheral blood leukocytes and play a central proinflammatory and immunoregulatory role in various immune disorders. This volume provides the reader with a comprehensive survey of the major aspects of human eosinophilic biology and immunology as well as the most clinically relevant aspects of eosinophil-related disorders. Expert contributions cover the ultrastructural and phenotypic characteristics of human eosinophils, and their fundamental biochemical features including receptors for IgE and chemokines. The production of cytokines and their role in the activation of eosinophils are reviewed. Furthermore, the classic eosinophil-related disorders such as hypereosinophilia, drug reactions, allergic disorders and some cardiovascular diseases are described. Each of the chapters is written by an investigator actively engaged in research on the topic under consideration. The well-edited and stimulating material compiled in this volume will be of interest to all those working in allergology, immunology, biochemistry and pulmonary medicine.


Book Synopsis Human Eosinophils by : Gianni Marone

Download or read book Human Eosinophils written by Gianni Marone and published by Karger Medical Scientific. This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eosinophils represent approximately 1% of peripheral blood leukocytes and play a central proinflammatory and immunoregulatory role in various immune disorders. This volume provides the reader with a comprehensive survey of the major aspects of human eosinophilic biology and immunology as well as the most clinically relevant aspects of eosinophil-related disorders. Expert contributions cover the ultrastructural and phenotypic characteristics of human eosinophils, and their fundamental biochemical features including receptors for IgE and chemokines. The production of cytokines and their role in the activation of eosinophils are reviewed. Furthermore, the classic eosinophil-related disorders such as hypereosinophilia, drug reactions, allergic disorders and some cardiovascular diseases are described. Each of the chapters is written by an investigator actively engaged in research on the topic under consideration. The well-edited and stimulating material compiled in this volume will be of interest to all those working in allergology, immunology, biochemistry and pulmonary medicine.