Recent Advances in MAIT Cells Biology

Recent Advances in MAIT Cells Biology PDF Author: Emmanuel Treiner
Publisher: Frontiers Media SA
ISBN: 2889743632
Category : Medical
Languages : en
Pages : 151

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Book Description

Recent Advances in MAIT Cells Biology

Recent Advances in MAIT Cells Biology PDF Author: Emmanuel Treiner
Publisher: Frontiers Media SA
ISBN: 2889743632
Category : Medical
Languages : en
Pages : 151

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Book Description


MAIT Cells

MAIT Cells PDF Author: Helen Kaipe
Publisher: Humana
ISBN: 9781071602096
Category : Medical
Languages : en
Pages : 310

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Book Description
This volume focuses on various methods used by researchers to study mucosal-associated invariant T (MAIT) cells in the aspects described below. The chapters are organized into Four Parts: part One looks at the function and importance of MAIT cells in health and disease. It covers methods to isolate and characterize MAIT cells from human tissues including liver, colon tumors, placenta and decidua, and endometrium. Part Two discusses MR1 independent stimulation, and looks at the activation of MAIT cells by different stimulatory agents. Part Three describes various methods to develop tools to analyze, monitor, and generate MAIT cells in vitro, including the production of MR1-tetramers and how they can be loaded with bacterial antigens and used for the detection of MAIT cells. The last part covers the use of murine models to study MAIT cells. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and comprehensive, MAIT Cells: Methods and Protocols is a valuable resource for anyone interested in learning more about this developing field. Chapters 9 and 17 are open access under a CC BY 4.0 license.

Recent Advances in γδ T Cell Biology: New Ligands, New Functions, and New Translational Perspectives

Recent Advances in γδ T Cell Biology: New Ligands, New Functions, and New Translational Perspectives PDF Author: Dieter Kabelitz
Publisher: Frontiers Media SA
ISBN: 2889197840
Category : Medicine (General)
Languages : en
Pages : 271

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Book Description
Gamma/delta (γδ) T-cells are a small subset of T-lymphocytes in the peripheral circulation but constitute a major T-cell population at other anatomical localizations such as the epithelial tissues. In contrast to conventional α/β T-cells, the available number of germline genes coding for T-cell receptor (TCR) variable elements of γδ T-cells is very small. Moreover, there is a prefential localization of γδ T-cells expressing given Vgamma and Vdelta genes in certain tissues. In humans, γδ T-cells expressing the Vg9Vd2-encoded TCR account for anywhere between 50 and >95% of peripheral blood γδ T-cells, whereas cells expressing non-Vd2 genes dominate in mucosal tissues. In mice, there is an ordered appearance of γδ T-cell „waves“ during embryonic development, resulting in preferential localization of γδ T-cells expressing distinct VgammaVdelta genes in the skin, the reproductive organs, or gut epithelia. The major function of γδ T-cells resides in local immunosurveillance and immune defense against infection and malignancy. This is supported by the identification of ligands that are selectively recognized by the γδ TCR. As an example, human Vgamma9Vdelta2 T-cells recognize phosphorylated metabolites („phosphoantigens“) that are secreted by many pathogens but can also be overproduced by tumor cells, providing a basis for a role of these γδ T-cells in both anti-infective and anti-tumor immunity. Similarly, the recognition of endothelial protein C receptor by human non-Vdelta2 γδ T-cells has recently been identified to provide a link for the role for such γδ T-cells in immunity against epithelial tumor cells and cytomegalovirus-infected endothelial cells. In addition to „classical“ functions such as cytokine production and cytotoxicity, recent studies suggest that subsets of γδ T-cells can exert additional functions such as regulatory activity and – quite surpisingly – „professional“ antigen-presenting capacity. It is currently not well known how this tremendous extent of functional plasticity is regulated and what is the extent of γδ TCR ligand diversity. Due to their non-MHC-restricted recognition of unusual stress-associated ligands, γδ T-cells have raised great interest as to their potential translational application in cell-based immunotherapy. Topics of this Research Focus include: Molecular insights into the activation and differentiation requirements of γδ T-cells, role of pyrophosphates and butyrophilin molecules for the activation of human γδ T-cells, role of γδ T-cells in tumor immunity and in other infectious and non-infectious diseases, and many others. We are most grateful to all colleagues who agreed to write a manuscript. Thanks to their contributions, this E-book presents an up-to-date overview on many facets of the still exciting γδ T-cells. Dieter Kabelitz & Julie Déchanet-Merville

Mucosal Vaccines

Mucosal Vaccines PDF Author: Hiroshi Kiyono
Publisher: Elsevier
ISBN: 0080537057
Category : Medical
Languages : en
Pages : 501

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Book Description
This comprehensive, authoritative treatise covers all aspects of mucosal vaccines including their development, mechanisms of action, molecular/cellular aspects, and practical applications. The contributing authors and editors of this one-of-a-kind book are very well known in their respective fields. Mucosal Vaccines is organized in a unique format in which basic, clinical, and practical aspects of the mucosal immune system for vaccine development are described and discussed. This project is endorsed by the Society for Mucosal Immunology. - Provides the latest views on mucosal vaccines - Applies basic principles to the development of new vaccines - Links basic, clinical, and practical aspects of mucosal vaccines to different infectious diseases - Unique and user-friendly organization

Recent Advances in iPSC-Derived Cell Types

Recent Advances in iPSC-Derived Cell Types PDF Author: Alexander Birbrair
Publisher: Academic Press
ISBN: 0128224541
Category : Science
Languages : en
Pages : 284

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Book Description
The series Advances in Stem Cell Biology is a timely and expansive collection of comprehensive information and new discoveries in the field of stem cell biology.Recent Advances in iPSC-derived Cell Types, Volume 4 addresses how different cell types can be derived from induced pluripotent stem cells.Somatic cells can be reprogrammed into Induced pluripotent stem cells by the expression of specific transcription factors. These cells are transforming biomedical research in the last 15 years. The volume teaches readers about current advances in the field. This book describes the use of induced pluripotent stem cells to form different cell types which can be used in cell therapy as well as to model several diseases in vitro, enabling us to study the cellular and molecular mechanisms involved in different pathologies. In recent years, remarkable progress has been made in the obtention of induced pluripotent stem cells and their differentiation into several cellular populations, tissues and organs using state-of-art techniques. This volume will cover what we know so far about the use of iPSCs to derive different cell types, such as: erythroid cells, mucosal-associated invariant T cells, megakaryocytes, cerebral cortical neurons, inner ear cell types, airway epithelial cells, male germ cells, trophoblasts, cardiomyocytes, ßpancreatic cells, and more. The volume is written for researchers and scientists interested in stem cell therapy, cell biology, regenerative medicine, and organ transplantation; and is contributed by world-renowned authors in the field. - Provides overview of the fast-moving field of induced pluripotent stem cell technology, regenerative medicine and therapeutics - Covers the following cell types derived from iPSCs: erythroid cells, mucosal-associated invariant T cells, megakaryocytes, cerebral cortical neurons, inner ear cell types, airway epithelial cells, male germ cells, trophoblasts, cardiomyocytes, ßpancreatic cells, and more - Contributions from stem cell leaders around the world

T-Cell Receptor Signaling

T-Cell Receptor Signaling PDF Author: Chaohong Liu
Publisher: Humana
ISBN: 9781071602652
Category : Science
Languages : en
Pages : 0

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Book Description
This volume provides current and new advanced methods and protocols to study T cells. Chapters guide readers through T cell diversity using mass cytometry, analyzing T cells from single cell level, CRISPR/Cas9 techniques to study the T cell activation, techniques to study subsets of Tcell’s, procedures to study artificial antigen presentosomes for T cell activation, techniques to study the T cell development, two-photon microscopy, and MAIT cells. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, T-Cell Receptor Signaling: Methods and Protocols aims to provide a wide range of approaches and be an invaluable resource for present and future generations of T cell researchers.

NKT Cells in Cancer Immunotherapy, 2nd Edition

NKT Cells in Cancer Immunotherapy, 2nd Edition PDF Author: Tonya J. Webb
Publisher: Frontiers Media SA
ISBN: 2889661539
Category : Science
Languages : en
Pages : 178

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Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Infections in Hematology

Infections in Hematology PDF Author: Georg Maschmeyer
Publisher: Springer
ISBN: 3662440008
Category : Medical
Languages : en
Pages : 328

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Book Description
Infections are among the most frequent complications in patients with hematological malignancies and in those undergoing high-dose chemotherapy and autologous hematopoietic stem cell transplantation. A profound knowledge on the epidemiology, diagnostic approaches, treatment modalities and prophylactic strategies is essential for the clinical management of these complications in patients who are often severely immunocompromised owing to their underlying diseases and in particular, the intensive myelosuppressive chemo and immunotherapy. This textbook provides a clinically oriented, compact and up-to-date overview on infections in hematology patients and their management. The typical pathogens to be considered in different subgroups of patients are identified and further aspects of the microbiological background are explored. Clinical, imaging, and laboratory-based diagnostic techniques are discussed and therapeutic strategies appropriate to different situations are then presented, with due attention to the pitfalls, toxicities and interactions that can arise during antimicrobial treatment. Strategies to prevent infection are also outlined, encompassing antimicrobial prophylaxis, isolation procedures, hospital hygiene, protective immunization and the use of hematopoietic growth factors.

Role of CD1- and MR1-restricted T cells in Immunity and Disease

Role of CD1- and MR1-restricted T cells in Immunity and Disease PDF Author: Kazuya Iwabuchi
Publisher: Frontiers Media SA
ISBN: 2889631222
Category :
Languages : en
Pages : 429

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Book Description
CD1 and MR1 are major histocompatibility complex (MHC) class I-related proteins that bind and present non-peptide antigens to subsets of T cells with specialized functions. CD1 proteins typically present lipid antigens to CD1-restricted T cells, whereas MR1 presents vitamin B-based ligands and a variety of drugs and drug-like molecules to MR1-restricted T cells. The CD1 family of antigen presenting molecules has been divided into two groups: Group 1 contains CD1a, CD1b and CD1c, and Group 2 contains CD1d. Additionally, CD1e is expressed intracellularly and is involved in the loading of lipid antigens onto Group 1 CD1 proteins. Humans express both Groups 1 and 2 CD1 proteins, whereas mice only express CD1d. Group 1 CD1 proteins present lipid antigens to T cells that generally express diverse T cell receptors (TCRs) and exhibit adaptive-like functions, whereas CD1d presents lipid antigens to subsets of T cells that express either diverse or highly restricted TCRs and exhibit innate-like functions. CD1d-restricted T cells are called natural killer T (NKT) cells, which includes Type I or invariant NKT (iNKT) cells expressing semi-invariant TCRs, and Type II NKT cells expressing more diverse TCRs. CD1-restricted T cells have been implicated in a wide variety of diseases, including cancer, infections, and autoimmune, inflammatory and metabolic diseases. Additionally, NKT cells have been targeted for immunotherapy of disease with ligands such as α-galactosylceramide for iNKT cells, or sulfatide for Type II NKT cells. Like iNKT cells, MR1-restricted T cells express semi-invariant TCRs and display innate-like functions. MR1-restricted T cells, also called mucosal-associated invariant T (MAIT) cells, have been implicated in immune responses against a variety of pathogens such as Mycobacterium tuberculosis, Pseudomonas aeruginosa, Helicobacter pylori, hepatitis C virus and influenza virus. Moreover, these cells contribute to autoimmune and inflammatory diseases, including colitis, rheumatoid arthritis, psoriasis, lupus, and diabetes.

Bile Acids and Their Receptors

Bile Acids and Their Receptors PDF Author: Stefano Fiorucci
Publisher: Springer Nature
ISBN: 3030220052
Category : Medical
Languages : en
Pages : 374

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Book Description
This book focusses on the latest results related to the field of bile acids as signaling molecules and describes how these receptors have become a major pharmacological target. It covers all major areas of research in this field, from genetics, chemistry, in silico modeling, molecular biology to clinical applications, offering a cross-country view of the functional role of bile acids as signaling molecules, virtually acting on all major areas of metabolism. While FXR and GPBAR1 are essential bile acid sensors that integrate the de novo bile acid synthesis with intestinal microbiota and liver metabolism, in a broader sense, BARs play a pathogenic role in the development of common human alignments including liver, intestinal and metabolic disorders, such as steatosis (NAFLD) and steato-hepatitis (NASH), diabetes, obesity and atherosclerosis.