Nk Cell Receptors Advances In Cell Biology And Immunology
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Author | : Colton Williams |
Publisher | : States Academic Press |
Total Pages | : 247 |
Release | : 2021-11-16 |
Genre | : Science |
ISBN | : 9781639893850 |
NK cells, or natural killer cells belong to the group of innate lymphoid cells which are vital to the innate immune system. They are a type of cytotoxic lymphocytes. NK cells respond rapidly to virus infected cell and other intracellular pathogens. They also take action against the formation of tumors. There are different NK cell receptors which have different functions. They can directly cause cell death after binding themselves to Fas ligand which shows infection of a cell. The MHC-independent receptors use a different pathway to cause apoptosis in infected cells. The activation of NK cells depends on the balance of activating and inhibitory receptor stimulation. This book unfolds the innovative aspects of NK cell receptors, which will be crucial for the progress of this field in the future. It consists of contributions made by international experts. The book is appropriate for students seeking detailed information in this area as well as for experts.
Author | : Emanuela Marcenaro |
Publisher | : Frontiers Media SA |
Total Pages | : 245 |
Release | : 2017-11-29 |
Genre | : |
ISBN | : 2889453502 |
Natural Killer (NK) cells were discovered ca 1975, as the first group of lymphoid cells that were neither T cells nor B cells. Since then, the dissection of the biology of NK cells has been growing exponentially with many seminal discoveries from the identification of MHC class I-specific inhibitory receptors to the discovery of receptor-ligand pairs involved in NK cell activation and to the manipulation of NK cells in cancer. In this research topic, we asked a group of thought leaders in NK cell biology to review recent advances in their origins and biology, and their roles in cancer, infection and inflammation. Together, these 25 articles provide a timely survey of NK cells as critical immunologic components of health and disease. They will hopefully prompt further dialogue and developments in basic and translational immunology.
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 2017 |
Genre | : |
ISBN | : |
Natural Killer (NK) cells were discovered ca 1975, as the first group of lymphoid cells that were neither T cells nor B cells. Since then, the dissection of the biology of NK cells has been growing exponentially with many seminal discoveries from the identification of MHC class I-specific inhibitory receptors to the discovery of receptor-ligand pairs involved in NK cell activation and to the manipulation of NK cells in cancer. In this research topic, we asked a group of thought leaders in NK cell biology to review recent advances in their origins and biology, and their roles in cancer, infection and inflammation. Together, these 25 articles provide a timely survey of NK cells as critical immunologic components of health and disease. They will hopefully prompt further dialogue and developments in basic and translational immunology.
Author | : Ulrike Koehl |
Publisher | : Frontiers Media SA |
Total Pages | : 407 |
Release | : 2018-11-13 |
Genre | : Immunologic diseases. Allergy |
ISBN | : 2889456633 |
Recognition and killing of aberrant, infected or tumor targets by Natural Killer (NK) cells is mediated by positive signals transduced by activating receptors upon engagement of ligands on target surface. These stimulatory pathways are counterbalanced by inhibitory receptors that raise NK cell activation threshold through negative antagonist signals. While regulatory effects are necessary for physiologic control of autoimmune aggression, they may restrain the ability of NK cells to activate against disease. Overcoming this barrier to immune surveillance, multiple approaches to enhance NK-mediated responses are being investigated since two decades. Propelled by considerable advances in the understanding of NK cell biology, these studies are critical for effective translation of NK-based immunotherapy principles into the clinic. In humans, dominant inhibitory signals are transduced by Killer Immunoglobulin Like Receptors (KIR) recognizing cognate HLA class I on target cells. Conversely, KIR recognition of “missing self-HLA” - due to HLA loss or HLA/ KIR mismatch - triggers NK-mediated tumor rejection. Initially observed in murine transplant models, these antitumor effects were later found to have important implications for the clinical outcome of haplotype-mismatched stemcell transplantation. Here, donor NK subsets protect against acute myeloid leukemia (AML) relapse through missing self recognition of donor HLA-C allele groups (C1 or C2) and/or Bw4 epitope. These studies were subsequently extended by trials investigating the antileukemia effects of adoptively transferred haplotype-mismatched NK cells in non-transplant settings. Other mechanisms have been found to induce clinically relevant NK cell alloreactivity in transplantation, e.g., post-reconstitution functional reversal of anergic NK cells. More recently, activating KIR came into the spotlight for their potential ability to directly activate donor NK cells through in vivo recognition of HLA or other ligands. Novel therapeutic monoclonal antibodies (mAb) may optimize NK-mediated effects. Examples include obinutuzumab (GA101), a glyco-engineered anti-CD20 mAb with increased affinity for the FcγRIIIA receptor, enhancing antibody-dependent cellular cytotoxicity; lirilumab (IPH2102), a first-in-class NK-specific checkpoint inhibitor, blocking the interaction between the major KIR and cognate HLA-C antigens; and elotuzumab (HuLuc63), a humanized monoclonal antibody specific for SLAMF7, whose anti-myeloma therapeutic effects are partly due to direct activation of SLAMF7-expressing NK cells. In addition to conventional antibodies, NK cell-targeted bispecific (BiKEs) and trispecific (TriKEs) killer engagers have also been developed. These proteins elicit potent effector functions by binding target ligands (e.g., CD19, CD22, CD30, CD133, HLA class II, EGFR) on one arm and NK receptors on the other. An additional innovative approach to direct NK cell activity is genetic reprogramming with chimeric antigen receptors (CAR). To date, primary NK cells and the NK92 cell line have been engineered with CAR specific for antigens expressed on multiple tumors. Encouraging preclinical results warrant further development of this approach. This Research Topic welcomes contributions addressing mechanisms of NK-mediated activation in response to disease as well as past and contemporary strategies to enhance NK mediated reactivity through control of the interactions between NK receptors and their ligands.
Author | : Kerry S. Campbell |
Publisher | : Springer Science & Business Media |
Total Pages | : 394 |
Release | : 2008-02-03 |
Genre | : Medical |
ISBN | : 1592590446 |
In Natural Killer Cell Protocols: Cellular and Molecular Methods, Kerry S. Campbell and Marco Colonna have assembled a comprehensive collection of readily reproducible methods designed to study natural killer (NK) cells from the broadest variety of viewpoints. These include not only classic techniques, but also new approaches to standard methods, newly evolved techniques that have become valuable for specific applications, and unique models for manipulating and studying NK cells. Among the advanced methods covered are those for in vitro transendothelial migration, in vivo detection of cells migrating into tumors, immunofluorescence staining of intracellular cytokines, and in vitro NK cell development. Valuable techniques for specific applications include vaccinia virus protein expression, soluble KIR-Fc fusions for HLA class I binding assays, calcium mobilization in cell conjugates, and identification of heterodimeric receptor complexes using cDNA library expression cloning. No less important are accounts of such classic methods as hybrid resistance, ADCC, viral defense, target cell cytotoxicity assays, cloning and culturing, tumor immunotherapy, and generation of HLA class I transfected target cells. Natural Killer Cell Protocols: Cellular and Molecular Methods offers immunologists, cancer researchers, virologists, and cell biologists today's most comprehensive collection of both established and cutting-edge techniques, methods that will contribute significantly to advancing our understanding of this fascinating and critically important class of cells.
Author | : Eva Lotzova |
Publisher | : CRC Press |
Total Pages | : 524 |
Release | : 1992-03-17 |
Genre | : Medical |
ISBN | : 9780849362675 |
This volume provides a state-of-the-art survey of developments in the field of NK cell-cancer cell interactions, activation, and oncolytic signaling. Specific topics discussed include NK cell receptors and adhesion molecules, signal transduction and activation, and mechanisms of cytotoxicity. The book will be an excellent learning tool and reference resource for scientists, clinicians, and students.
Author | : Mourad Aribi |
Publisher | : BoD – Books on Demand |
Total Pages | : 210 |
Release | : 2017-12-13 |
Genre | : Medical |
ISBN | : 9535136712 |
The book Natural Killer Cells is the result of a collective work that addresses in a clear and comprehensive way for readers and through as many sensuous details as possible, the most and various fundamental aspects of natural killer cells, as well as their clinical applications in cancer immunotherapy. This book will serve as an invaluable resource and pedagogical support for clinicians, researchers, basic scientists, immunology and immunopathology lecturers, as well as for students in biology and medicine, especially the ones with an advanced understanding of immunology.
Author | : Frederick W. Alt |
Publisher | : Academic Press |
Total Pages | : 267 |
Release | : 2009-03-10 |
Genre | : Science |
ISBN | : 008088833X |
Advances in Immunology, a long-established and highly respected publication, presents current developments as well as comprehensive reviews in immunology. Articles address the wide range of topics that comprise immunology, including molecular and cellular activation mechanisms, phylogeny and molecular evolution, and clinical modalities. Edited and authored by the foremost scientists in the field, each volume provides up-to-date information and directions for future research. - Contributions from leading authorities and industry experts - Informs and updates on all the latest developments in the field
Author | : Srinivas S. Somanchi |
Publisher | : Methods in Molecular Biology |
Total Pages | : 384 |
Release | : 2018-05-27 |
Genre | : Medical |
ISBN | : 9781493981168 |
Author | : Ronald B. Herberman |
Publisher | : Elsevier |
Total Pages | : 1607 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 032313971X |
NK Cells and Other Natural Effector Cells reviews the state of knowledge on NK cells and other natural effector mechanisms. The coverage of immune effector systems ranges from basic studies on their nature, regulation, and mechanisms of action to important practical issues such as their role in host resistance, their modulation by therapeutic intervention, and alterations of their activity in disease. The book is organized into 12 parts. Parts I and II examine the characteristics of NK cells and other natural effector cells, respectively. Part III focuses on the cell lineage of NK and related effector cells, providing evidence for or against T cell lineage, for or against macrophage lineage, and for or against other or separate lineage. Part IV deals with the genetics of natural resistance in the mouse and rat. Part V presents studies on the regulation of cytotoxic activity. Part VI examines the specificity of natural effector cells, covering the nature of target cell structures and the nature of recognition receptors in effector cells. Part VII discusses the cytotoxicity by cultured lymphoid cells while Part VIII turns to the mechanisms of cytotoxicity. Part IX deals with natural cell-mediated reactivity against primary tumor cells and against non-tumor targets. Part X examines NK cell tumors or the presence of NK cells at the site of tumor growth. Part XI presents clinical studies with natural effector cells. Part XII provides evidence for in vivo reactivity of natural effector cells.