Epigenetics In Allergy And Autoimmunity

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Epigenetics In Allergy And Autoimmunity

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Author : Christopher Chang
language : en
Publisher: Springer Nature
Release Date : 2020-05-22

Epigenetics In Allergy And Autoimmunity written by Christopher Chang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-22 with Medical categories.

This book will address the growing roles of epigenetics in disease pathogenesis, and review the contribution of epigenetic modifications to disease onset and progression. The roles that epigenetics plays in facilitating effects of the environment on allergy and immunologic diseases will be reviewed. The book is divided into three parts – the first is an introduction to epigenetics and the methods that have been developed to study epigenetics, the second addresses epigenetics in allergic diseases and the third part will cover epigenetics in autoimmune diseases. With the rapid expansion of knowledge of how genes are regulated and how this regulation affects disease phenotypes, this book will be attractive to experienced researchers as well as those just launching an epigenetics research program. It will also be of interest to allergist, immunologists, rheumatologists and dermatologist who are engaged in clinical practice as a resource for understanding the basis for personalized and precision medicine. For example, the role that epigenetics plays in the pathogenesis in various allergic and autoimmune disorders and how this determines disease phenotypes will be covered extensively in this book. This book will thus help fill the gap in available resources on epigenetics in allergy and autoimmune diseases.

Epigenetic Contributions In Autoimmune Disease

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Author : Esteban Ballestar
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-02-16

Epigenetic Contributions In Autoimmune Disease written by Esteban Ballestar and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-16 with Medical categories.

This volume focuses on the relevance of epigenetic mechanisms in autoimmune disease. It provides new directions for future research in autoimmune disease.

Epigenetics And Dermatology

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Author : Qianjin Lu
language : en
Publisher: Academic Press
Release Date : 2015-02-16

Epigenetics And Dermatology written by Qianjin Lu and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-16 with Science categories.

Epigenetics and Dermatology explores the role of epigenetics in the pathogenesis of autoimmune-related skin diseases and skin cancer. Leading contributors cover common and uncommon skin conditions in which extensive epigenetic research has been done. They explain how environmental exposures (chemicals, drugs, sunlight, diet, stress, smoking, infection, etc.) in all stages of life (from a fetus in-utero to an elderly person) may result in epigenetic changes that lead to development of some skin diseases in life. They also discuss the possibilities of new and emergent epigenetic treatments which are gradually being adopted in management of various skin diseases. Chapters follow a conventional structure, covering fundamental biology of the disease condition, etiology and pathogenesis, diagnosis, commonly available treatments, and epigenetic therapy where applicable. Discusses the basic biology of skin diseases and skin cancers induced or aggravated by aberrant epigenetic changes Evaluates how to approach autoimmune-related skin diseases from a therapeutic perspective using the wealth of emergent epigenetic clinical trials Offers a coherent and structured table of contents with basic epigenetic biology followed by discussion of the spectrum of rheumatologic through neoplastic skin diseases, finally ending with a discourse on epigenetic therapy

The Epigenetics Of Autoimmunity

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Author : Rongxin Zhang
language : en
Publisher: Academic Press
Release Date : 2018-04-25

The Epigenetics Of Autoimmunity written by Rongxin Zhang and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-25 with Medical categories.

The Epigenetics of Autoimmunity covers a topic directly related to translational epigenetics. Via epigenetic mechanisms, a number of internal and external environmental risk factors, including smoking, nutrition, viral infection and the exposure to chemicals, could exert their influence on the pathogenesis of autoimmune diseases. Such factors could impact the epigenetic mechanisms, which, in turn, build relationship with the regulation of gene expression, and eventually triggering immunologic events that result in instability of immune system. Since epigenetic aberrations are known to play a key role in a long list of human diseases, the translational significance of autoimmunity epigenetics is very high. To bridge the gap between environmental and genetic factors, over the past few years, great progress has been made in identifying detailed epigenetic mechanisms for autoimmune diseases. Furthermore, with rapid advances in technological development, high-throughput screening approaches and other novel technologies support the systematic investigations and facilitate the epigenetic identification. This book covers autoimmunity epigenetics from a disease-oriented perspective and several chapters are presented that provide advances in wide-spread disorders or diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), multiple sclerosis (MS), type 1 diabetes (T1DM), systemic sclerosis (SSc), primary Sjögren's syndrome (pSS) and autoimmune thyroid diseases (AITDs). These emerging epigenetic studies provide new insights into autoimmune diseases, raising great expectations among researchers and clinicians. This seminal book on this topic comprehensively covers the most recent advances in this exciting and rapidly developing new science. They might reveal not only new clinical biomarkers for diagnosis and disease progression, but also novel targets for potential epigenetic therapeutic treatment. - Provides the accurate and cutting-edge information on autoimmunity epigenetics - Wide coverage appeals to those interested in fundamental epigenetics and inheritance to those with more clinical interests - Critical reviews of the mean of deriving and analysing autoimmunity epigenetics information as well as its translational potential - Up-to-date coverage of emerging topics in autoimmunity epigenetics

Immune Maturation And Modulation In Childhood Allergies

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Author : Johanna Huoman
language : sv
Publisher: Linköping University Electronic Press
Release Date : 2020-10-15

Immune Maturation And Modulation In Childhood Allergies written by Johanna Huoman and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-15 with categories.

The prevalence of allergic diseases has in the past century increased among children in affluent societies. Underlying causes are incompletely disentangled, but decreased diversity in environmental and microbial exposures could drive allergy development. Allergic individuals possess imbalanced immune responses, skewed in favour of Th2 cells along with lesser Th1 and Treg responses. As allergy development early in life increases the risk of developing further allergic manifestations later, early prevention is key. Thus, interventions in pregnancy, early life and childhood may modulate immunity towards tolerance, although underpinnings of immune maturation and modulation in allergy prevention throughout childhood are not entirely understood. In this thesis, these questions are addressed in children with a high propensity of developing allergic disease or who already have manifested allergies. Chemokines are crucial for immune cell recruitment to the allergic reaction site, and associate with allergy development in childhood. In Paper I, circulating levels of the allergy-related chemokines CCL17, CCL18, CCL22, CXCL10 and CXCL11 were studied in the natural course of allergic disease. Elevated levels of the Th2/Treg-regulated chemokine CCL18 in infancy and childhood associated with development of asthma and/or sensitisation. Moreover, this finding conferred higher odds of developing asthma and sensitisation from early school age until adolescence. Additionally, increased levels of the Th1-associated chemokines CXCL10 after birth, and decreased levels of CXCL11 at birth, preceded asthma development later in life. Hence, Paper I showed that circulating chemokine levels in different ways precede allergy development. Epigenetic modifications, such as DNA methylation, comprise a link between the genetic setup and environmental exposures, and regulate processes such as Th cell differentiation. Perinatal treatment with Lactobacillus reuteri and ?-3 fatty acids prevent development of some IgE-mediated manifestations. However, the drivers of the immunostimulating and pro-resolving effects of these treatments are sparsely examined. In Papers II and III, epigenome-wide DNA methylation patterns in CD4+ cells upon pre-and postnatal L. reuteri supplementation alone or in combination with ?-3 fatty acids were studied. In Paper II, the greatest epigenome wide differential methylation was evident at birth, mainly directed towards hypomethylation, indicating transcriptional availability of affected genes. Network analyses revealed several immune related pathways, and a relationship of differentially methylated genes to allergy development. Thus, prenatal L. reuteri treatment seemingly poises Th cells towards immune activation at birth, possibly influencing immune maturation as well as allergy development in the child. In Paper III, epigenome-wide DNA methylation patterns were surveyed at birth. In this on-going trial, mothers are treated during the latter half of pregnancy with a combination of L. reuteri and ?-3 fatty acids. Four different treatment groups were studied, and the largest differential methylation was seen in the double active treatment group. In contrast to Paper II, most CpGs and genes were hypermethylated, indicating repressed gene transcription. In line with Paper II, network analyses showed that T cell and immune mediated pathways were affected by treatment, and synergistic effects of the double treatment were indicated. Taken together, prenatal treatment with L. reuteri and/or ?-3 fatty acids altered the epigenome to different extents at birth, mainly towards hypermethylation, and often affected immune related pathways. Immunomodulatory effects of sublingual immunotherapy in children and adolescents are scarcely investigated. In Paper IV, circulating and salivary immune mediators were investigated in timothy grass-pollen allergic children treated with sublingual immunotherapy. Actively treated children had elevated levels of timothy grass pollen-specific IgA antibodies in saliva, along with increased circulating levels of the Th1-associated chemokines CXCL10 and CXCL11, both after treatment ending and two years later. Taken together, sublingual immunotherapy modulates local and peripheral immune responses in children with timothy grass pollen-induced allergy, by augmenting Th1-responses, lessening Th2-responses and inducing immunomodulatory responses, suggesting induction of tolerance, also partly in the long-term. Altogether, the studies in this thesis have shown altered immune regulation in children developing allergies. Moreover, immunomodulatory effects of prenatal treatment with probiotics and ?-3 fatty acids, and sublingual immunotherapy in children with grass pollen-induced allergic disease, were revealed. DNA methylation patterns and immunologic mediators in blood and saliva could potentially serve as appropriate biomarkers for allergic disease. Long term health benefits can be reached by intervening early in life, and further knowledge about the mechanisms behind this could promote the prevention of allergic diseases and hence improve the quality of life for children and adolescents. Förekomsten av allergiska sjukdomar, som böjveckseksem, hösnuva och astma, har under det senaste århundradet ökat markant bland barn i industrialiserade samhällen. De bakomliggande orsakerna är inte helt klarlagda, men samhälleliga förändringar har minskat vår mångfaldiga exponering för bakterier, virus och parasiter. Detta skulle kunna ligga till grund för immunförsvarets felaktiga reaktion mot egentligen ofarliga ämnen som ses vid allergier. Hos allergiska individer är immunförsvaret obalanserat, med en relativ övervikt av det så kallade Thjälpar- 2 (Th2)-svaret gentemot Th1- och det regulatoriska T-cells (Treg)-svaret. Allergiska sjukdomar utvecklas ofta tidigt i livet, vilket ökar risken för att utveckla vidare allergier senare i livet. Därför är det viktigt att motverka den allergiska marschens framfart tidigt genom förebyggande behandlingar. Ett tillvägagångsätt är att påbörja behandling under graviditeten och tidiga barndomen hos barn med hög risk för att bli allergiska, då grunden för immunsystemet läggs redan under fosterlivet. För redan utvecklade allergier är det tänkbart att omforma dessa immunsvar med immunterapi, som kan minska symptom av befintliga allergier samtidigt som det är möjligt att motverka utvecklingen av senare allergier. Det är dock inte helt klarlagt hur immunutmognaden under barndomen är reglerad, eller hur dessa typer av behandlingar skulle kunna påverka allergiutveckling under den perioden. I denna avhandling undersöks immunutmognad vid allergiutveckling hos barn, och möjliga immunmodulerande förebyggande behandlingar hos barn med genetisk benägenhet att bli allergiska eller som redan utvecklat allergisk sjukdom. För att celler ska rekryteras till platsen för en allergisk reaktion krävs bland annat s.k. kemokiner. I det första arbetet undersöktes dessa lockelseämnen, då våra tidigare studier visat att nivåerna av vissa kemokiner vid födseln förutspår utvecklingen av allergi hos barn. De allergirelaterade kemokinerna CCL17, CCL18, CCL22, CXCL10 och CXCL11 analyserades i blodprover vid födseln, 1 och 8 års ålder hos barn från en populationsbaserad observationsstudie. Förhöjda nivåer av CCL18, ett kemokin under reglering av både Th2- och Treg-svar, uppmättes vid 1 och/eller 8 års ålder hos barn som hade astma (särskilt svår astma) och/eller var sensibiliserade. De ökade nivåerna associerade också till högre odds för utveckling av astma från tidig skolålder upp till övre tonåren, med liknande resultat för sensibilisering. Även ökade nivåer av de Th1-associerade kemokinerna CXCL10 efter födseln och minskade nivåer av CXCL11 vid födseln föregick utvecklingen av astma senare i livet. Det första arbetet visade alltså på att cirkulerande kemokiner på olika vis föregår utvecklingen av allergier hos barn och ungdomar. Som länk mellan arv och miljö står s.k. epigenetiska modifieringar, vilka reglerar genaktiviteten utan att förändra den genetiska koden i arvsmassan. Till dessa modifieringar räknas DNAmetylering, en process som bl.a. styr utmognad av de allergirelaterade T-hjälparcellerna. Vi har i tidigare separata studier med den probiotiska stammen Lactobacillus reuteri och omega-3- behandling visat förebyggande av vissa IgE-medierade allergier. Vad som föranleder de immunstimulerande och immunmodulerande effekterna av behandlingarna är dock otillräckligt undersökt. I det andra och tredje arbetet undersöktes hur L. reuteri separat eller i kombination med omega-3-fettsyror påverkar DNA-metyleringsmönster i CD4+ Th-celler hos barn som behandlats före och efter födseln. I det andra arbetet undersöktes DNA-metyleringsmönster både lokalt och i hela genomet vid födseln, ett och två års ålder. Behandling med L. reuteri förändrade DNA-metyleringsmönster i allergirelaterade T-hjälparceller mest vid födseln mot s.k. hypometylering, vilket pekar på ökad tillgänglighet av generna för proteinuttryck. Vidare nätverksanalyser visade att flera immunrelaterade processer påverkades av behandlingen. Därtill var generna från nätverket till stor del associerade med allergiutveckling. Maternell behandling med L. reuteri under den sista graviditetsmånaden tycks alltså förändra DNA-metyleringsmönster i T-hjälparceller hos fostret mot ökad immunaktivering vid födseln, vilket i sin tur skulle kunna påverka både immunutmognad och allergiutveckling hos barnet. I likhet med det andra arbetet undersöktes i det tredje arbetet DNA-metyleringsmönster i hela epigenomet, fast endast vid födseln. I denna pågående studie behandlas mödrarna under den andra halvan av graviditeten med en kombination av L. reuteri och omega-3-fettsyror. Fyra olika behandlingsgrupper undersöktes och den största förändringen i DNA-metylering återfanns i den kombinerade aktiva behandlingsgruppen. I motsats till det andra arbetet var dock de flesta CpG positionerna och generna hypermetylerade, vilket tyder på att genernas tillgänglighet för proteinuttryck hämmas. I linje med det andra arbetet framkom T-cells- och immunrelaterade signalvägar i nätverksanalyser på dessa gener, och det fanns indikationer på synergistiska effekter mellan behandlingarna. Det tredje arbetet visade att behandling med L. reuteri och/eller omega- 3-fettsyror under senare delen av graviditeten förändrar T-hjälparcellernas epigenom i olika grad främst mot hypermetylering, och ofta påverkar immunrelaterade signalvägar. Relevansen av dessa fynd kommer i framtida studier att undersökas på proteinnivå och i relation till allergiutveckling. Med allergenspecifik immunterapi är det möjligt att modulera immunsvaret hos allergiska individer mot ett tolerant immunsvar, men effekter av sublingual immunterapi på immunförsvaret hos barn och ungdomar är knapphändigt undersökta. I det fjärde arbetet undersöktes olika immunologiska mediatorer i blod och saliv hos barn med gräspollenallergi, som deltagit i en studie med sublingual immunterapi. Nivåerna av allergirelaterade cytokiner och kemokiner undersöktes i blodprover från inklusionstillfället, efter tre år med behandling samt två år efter avslutad behandling i plasmaprov och allergenstimulerade blodceller. Dessutom mättes total-IgA, sekretoriskt IgA och gräspollenspecifikt IgA i saliv vid samma tillfällen. Barn som fått aktiv behandling hade högre nivåer av gräspollenspecifika IgA-antikroppar i saliv både när behandlingen avslutades och två år efter. Därtill ökade nivåerna av de Th1-associerade kemokinerna CXCL10 och CXCL11 i blodet vid samma tidpunkter. Sammantaget visade resultaten från det fjärde arbetet att behandlingen med sublingual immunterapi hos barn med gräspollenallergi modulerar immunsvaret både lokalt och i cirkulationen genom att öka Th1- svar, minska Th2-svar och inducera immunreglerande svar, vilket indikerar att tolerans har utvecklats hos dessa barn, delvis även på lång sikt. Sammanfattningsvis har studierna i denna avhandling visat på förändrad immunreglering hos barn som utvecklar allergi. Dessutom påvisades immunmodulerande effekter av prenatal behandling med probiotika och omega-3-fettsyror samt av sublingual immunterapi hos barn med gräspollenallergi. DNA-metyleringsmönster och immunologiska mediatorer i blod och saliv skulle kunna fungera som lämpliga biomarkörer för allergisk sjukdom, vilket är ett viktig led i att kunna förutsäga allergiutveckling och förbättra den kliniska behandlingen av allergier bland barn och ungdomar. Långsiktiga hälsofördelar kan uppnås genom att ingripa tidigt i livet, och vidare kunskap om mekanismerna bakom detta skulle kunna främja förebyggandet av allergiska sjukdomar och således kunna förbättra livskvaliteten för barn och ungdomar.

Epigenetics In Organ Specific Disorders

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Author :
language : en
Publisher: Academic Press
Release Date : 2022-12-02

Epigenetics In Organ Specific Disorders written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-02 with Medical categories.

**Selected for Doody's Core Titles® 2024 in Clinical Genetics**Epigenetics in Organ Specific Disorders, a new volume in the Translational Epigenetics series, provides a foundational overview and nuanced analysis of epigenetic gene regulation distinct to each organ type and organ specific disorders, fully elucidating the epigenetics pathways that promote and regulate disease. After a brief introduction, chapter authors compare epigenetic regulations across normal and disease conditions in different organ tissues, exploring similarities and contrasts. The role of epigenetic mechanisms in stem cells, cell-matrix interactions and cell proliferation, cell migration, cellular apoptosis, necrosis, pyknosis, tumor suppression, and immune responses across different organ types are examined in-depth.Organ specific epigenetic mechanisms and biomarkers of early use in developing drugs, which can selectively target the organ of interest, are also explored to enable new precision therapies. - Identifies unique epigenetic mechanisms that occur in normal and disease conditions in each organ, examining differences and similarities - Explores organ specific epigenetic mechanisms to enable drug discovery and development - Features chapter contributions from leading researchers in the field

Epigenetics Of The Immune System

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Author : Dieter Kabelitz
language : en
Publisher: Academic Press
Release Date : 2020-06-04

Epigenetics Of The Immune System written by Dieter Kabelitz and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-04 with Medical categories.

Epigenetics of the Immune System focuses on different aspects of epigenetics and immunology, providing readers with the fundamental mechanisms relating to epigenetics and the immune system. This book provides in-depth information on immune cells as a toolbox in deciphering systematically regulated mechanisms using "omics" and computational biology approaches. In addition, the book presents the translational importance of epigenetics and the immune system in our understanding of pathophysiology in diseases and its therapeutic applications. - Provides an overview of most important immune mechanisms, the current status of epigenetics, and how both of them are brought together - Presents key principles of immune mechanisms in epigenetics, presenting current findings and key principles - Features in-depth chapter contributions from a wide range of international researchers and specialists in immunology, translational medicine and epigenetics - Merges two very large areas, covering the unique interrelatedness of epigenetics and immunology

Environmental Epigenetics

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Author : L. Joseph Su
language : en
Publisher: Springer
Release Date : 2015-05-18

Environmental Epigenetics written by L. Joseph Su and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-18 with Medical categories.

This book examines the toxicological and health implications of environmental epigenetics and provides knowledge through an interdisciplinary approach. Included in this volume are chapters outlining various environmental risk factors such as phthalates and dietary components, life states such as pregnancy and ageing, hormonal and metabolic considerations and specific disease risks such as cancer cardiovascular diseases and other non-communicable diseases. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses.

The Epigenetics Of Autoimmune Diseases

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Author : Moncef Zouali
language : en
Publisher: John Wiley & Sons
Release Date : 2009-04-01

The Epigenetics Of Autoimmune Diseases written by Moncef Zouali and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-01 with Medical categories.

The role of epigenetic mechanisms in autoimmune disease is only now starting to become clear. Understanding these mechanisms, their effect on cellular function and the role of environmental factors is vital to determining how to manage these often debilitating and fatal diseases. Drawing on the research of leading experts, this book provides a valuable insight into this important new area of autoimmunity research and a clear, up-to-date view on the major advances in the field. Specific coverage includes: How highly developed epigenetic mechanisms are involved in several aspects of normal immune regulation, in addition to maintaining immune tolerance to self-determinants. Specific epigenetic aspects of human autoimmune diseases, including multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, systemic sclerosis, autoimmune diabetes, thyroid autoimmunity, inflammatory bowel disease and autoimmune hepatitis. How understanding epigenetic mechanisms can lead to therapeutic strategies based on manipulation of this previously unexploited facet of immune regulation. Discussion of the novel approaches that are being investigated to prevent or treat autoimmune diseases. This book is an essential resource for those actively involved in the field. It is also of interest to basic researchers interested in understanding the origin of autoimmunity and clinical specialists interested in gaining in-depth understanding of the pathogenesis of autoimmune diseases and their treatment.

Epigenetic Aspects Of Autoimmune Diseases

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Author : Wesley H. Brooks
language : en
Publisher: Frontiers Media SA
Release Date : 2022-09-22

Epigenetic Aspects Of Autoimmune Diseases written by Wesley H. Brooks and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-22 with Science categories.