Abstract:
:Triggering lymphocyte effector functions is controlled by a diverse array of immune cell coreceptors that dampen or potentiate the primary activation signal from antigen receptors. Attenuation of lymphocyte activation has been shown to be accomplished by immunoreceptor tyrosine-based inhibition motifs that upon phosphorylation recruit protein or lipid phosphatases. By contrast, a general concept of signal amplification and/or diversification is still out. However, the recent discovery of antigen receptor-intrinsic costimulation by membrane-bound immunoglobulins in class-switched memory B cells identified a consensus phosphorylation motif that can boost antigen-induced signal chains and is also employed by costimulatory receptors on T and Natural Killer cells to provide secondary signals for cellular activation. Here we define a common basis of tyrosine-based lymphocyte costimulation comprising immunoglobulin tail tyrosine (ITT)-like phosphorylation motifs and their proximal effectors, growth factor receptor-bound protein (Grb) 2 and phosphatidylinositol-3 kinase (PI3K) enzymes of class IA.
journal_name
Curr Opin Immunoljournal_title
Current opinion in immunologyauthors
Engels N,Wienands Jdoi
10.1016/j.coi.2011.01.005subject
Has Abstractpub_date
2011-06-01 00:00:00pages
324-9issue
3eissn
0952-7915issn
1879-0372pii
S0952-7915(11)00006-9journal_volume
23pub_type
杂志文章,评审abstract::Peptides presented by MHC class I molecules are typically produced through antigen degradation by the proteasome followed by trimming by exopeptidases. According to recent results, these include both aminopeptidases and carboxypeptidases in the cytosol and the endoplasmic reticulum. While cytosolic peptidases have a n...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2012.10.001
更新日期:2013-02-01 00:00:00
abstract::Enteric microbial pathogens interact with the gut epithelium to establish infection. Recently, it has become clear that many microorganisms that colonize or traverse the intestinal mucosa do so via the specialized M cells. Recent work has shown that Shigella flexneri and Salmonella typhimurium specifically target M ce...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
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journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2008.03.002
更新日期:2008-04-01 00:00:00
abstract::Engagement of the TCR/CD3 complex triggers a cascade of events that result in T lymphocyte activation and promote positive and negative selection of thymocytes, T lymphocyte migration and effector functions, development and activation of regulatory T cells. Gene mutations that abrogate early TCR signaling are associat...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2014.10.003
更新日期:2014-12-01 00:00:00
abstract::Germinal centers (GCs) are well known for their important role in shaping the secondary B cell repertoire to generate antibodies capable of binding with high-affinity and specificity to foreign antigens. Somatic hypermutation of the Ig variable region genes in GC B cells represents a highly efficient mechanism for gen...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
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更新日期:2020-04-01 00:00:00
abstract::Somatic mutations in the genome represent one of the major drivers of malignancy. However, non-synonymous mutations are also a source of mutated peptides that are presented by HLA molecules to induce protective CD4 and CD8 T cell responses. Consistent with this notion, the mutation burden of a tumor is correlated with...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2016.07.005
更新日期:2016-08-01 00:00:00
abstract::Regulatory T (Treg) cells suppress effector T (Teff) cells and prevent immune-mediated rejection of cancer. Much less appreciated are mechanisms by which Teff cells antagonize Treg cells. Herein, we consider how complex reciprocal interactions between Teff and Treg cells shape their population dynamics within tumors. ...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2015.02.003
更新日期:2015-04-01 00:00:00
abstract::CD8 T cell differentiation is a tightly regulated process generating effector and memory T cells over the course of acute infections. In cancer and chronic infection, this differentiation program is derailed, and antigen-specific CD8 T cells differentiate to a hyporesponsive state generally referred to as T cell exhau...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2019.04.014
更新日期:2019-06-01 00:00:00
abstract::The extent of airway remodeling correlates with severity of asthma. Persistent airway hyperresponsiveness (AHR) is associated with airway remodeling, but not with inflammation. The increase in ASM mass is recognized as one of the most important factors related to AHR and to the severity of asthma. The infiltration of ...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2007.07.018
更新日期:2007-12-01 00:00:00
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journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2019.05.003
更新日期:2019-10-01 00:00:00
abstract::The adoptive transfer of donor-type CD4(+)CD25(+)FOXP3(+) regulatory T cells (Treg) protects from graft-versus-host disease in murine bone marrow transplantation models. Results from first clinical trials exploring such strategies have recently been presented and seem to confirm the efficacy of Treg for the prevention...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2011.06.006
更新日期:2011-10-01 00:00:00
abstract::The hypothesis that protein kinase C (PKC)-theta; plays an important role in T-lymphocyte activation, as indicated by numerous studies in cell lines, was recently confirmed in mice deficient in the expression of this enzyme. In response to TCR stimulation, peripheral T cells lacking PKC-theta; failed to activate NF-ka...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/s0952-7915(02)00346-1
更新日期:2002-06-01 00:00:00
abstract::Rheumatoid arthritis is often considered to be an autoimmune disease in which the abnormal immunological response is triggered by an infectious agent(s) but progress towards identifying such extrinsic factors has so far been unrevealing. In contrast, the genetic component of host susceptibility is slowly becoming clea...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/0952-7915(92)90059-n
更新日期:1992-12-01 00:00:00
abstract::Antigen presenting cells (APCs) alert the immune system to attack by extracellular organisms; APCs achieve this via internalization, degradation, and display of antigenic fragments on the cell surface by MHC class II molecules. These class II molecules bind to an accessory protein, termed the invariant chain, that ens...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/s0952-7915(01)00295-3
更新日期:2002-02-01 00:00:00
abstract::A two chain model, composed of ligand-binding and signal transducing subunits, first identified in the interleukin-6 receptor system, has been revealed in several other cytokine systems. Common signal transducers shared by several receptor systems may explain a functional redundancy characteristic of cytokines. The si...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/0952-7915(92)90081-o
更新日期:1992-06-01 00:00:00
abstract::Zika virus (ZIKV) is the most recent mosquito-transmitted virus to cause a global health crisis following its entrance into a naïve population in the Western Hemisphere. Once the ZIKV outbreak began investigators rapidly established small and large animal models of pathogenesis, developed a number candidate vaccines u...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2018.04.024
更新日期:2018-08-01 00:00:00
abstract::The usefulness of molecular diagnosis is now well established for genetically determined recurrent fevers. In familial Mediterranean fever, the severity of the disease and the risk of renal amyloidosis are correlated with mutations in MEFV, and the serum amyloid-associated protein (SAA)1 alpha/alpha allele is a modify...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/s0952-7915(00)00255-7
更新日期:2001-10-01 00:00:00
abstract::Recent evidence indicates that genes required for antigen processing are present in the class II region of the MHC. Two new classes of MHC genes that may encode much of the machinery required in the class I (endogenous) antigen-processing pathway have been discovered. There is evidence that genes required in the class...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/0952-7915(92)90128-2
更新日期:1992-02-01 00:00:00
abstract::Perception of pathogen-associated molecular patterns (PAMPs) constitutes the first layer of plant innate immunity and is referred to as PAMP-triggered immunity (PTI). For a long time, part of the plant community was sceptical about the importance of PAMP perception in plants. Genetic and biochemical studies have recen...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2007.11.003
更新日期:2008-02-01 00:00:00
abstract::The steep rise in the incidence and prevalence of food allergy (FA) in the last few decades have focused attention of environmental mechanisms which act to promote disease, chief among which is the microbiome. Recent studies have now established the presence of pathogenic dysbiosis in FA that could be precipitated by ...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2019.06.001
更新日期:2019-10-01 00:00:00
abstract::The production of pathogenic autoantibodies in organ-specific autoimmune diseases is largely T cell dependent. For many of these diseases, the precise specificities and cytokine profiles of the T cells that respond to the corresponding autoantigens have now been identified. This knowledge has been exploited to treat s...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/s0952-7915(00)00160-6
更新日期:2000-12-01 00:00:00
abstract::The mesenchymal microenvironment is increasingly recognized as a major player in immunity. Here we focus on mesenchymal cells located within or in proximity to the blood vessels wall, which include pericytes, adventitial fibroblasts and mesenchymal stromal cells. We discuss recent evidence that these cells play a role...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2020.03.009
更新日期:2020-05-06 00:00:00
abstract::Much has been learned recently about the structure and function of 55 kDa bactericidal/permeability-increasing protein (BPI), a member of a genomically conserved lipid-interactive protein family. Analysis of BPI fragments and the crystal structure of human BPI have established that BPI consists of two functionally dis...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/s0952-7915(98)80030-7
更新日期:1998-02-01 00:00:00
abstract::The molecular repertoire for innate recognition of bacterial pathogens has expanded rapidly in the past decade. These immunosensors include Toll-like receptors and the more recently defined NOD-like receptors (NLRs): NODs, NALPs, NAIP and IPAF. Toll-like receptors signal from the cell surface or endosome upon ligand b...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2006.11.005
更新日期:2007-02-01 00:00:00
abstract::A little more than a decade after the explosion of research into recombinant live-attenuated or replication-deficient viruses as vaccine platforms, many viral vector-based vaccines have been licensed for animals. Progress has been slower for humans but 2011 will see the licensure of the first viral-vectored vaccine fo...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2011.03.006
更新日期:2011-06-01 00:00:00
abstract::The polymerase chain reaction allows the characterization of RNA and DNA sequences in samples as small as a single cell. The recent development of amplification systems designed to isolate rearranged immunoglobulin genes from single B lineage cells has provided a powerful tool to investigate various aspects of B-cell ...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/0952-7915(95)80016-6
更新日期:1995-04-01 00:00:00
abstract::The immune system is a delicately balanced network of interacting cells. In recent years, the concept of immune regulation/suppression has been firmly established, and both natural and induced regulatory cells play vital roles in protection from autoimmune disease. Recent work has revealed the diverse nature of regula...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2004.09.015
更新日期:2004-12-01 00:00:00
abstract::The presentation of antigenic peptides by MHC class I molecules plays a vital role in generating T cell responses against infection and cancer. Over the last two decades the central role of tapasin as a peptide editor that influences the loading and optimisation of peptides onto MHC class I molecules has been extensiv...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2017.04.008
更新日期:2017-06-01 00:00:00
abstract::While certain bacteria and respiratory viruses promote local inflammation and disease onset, a more diverse colonization of the different species in the (gut) microbiome may be linked to more regulatory responses and protection against asthma and allergies. These processes are also influenced in part by food intake, b...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/j.coi.2016.05.009
更新日期:2016-10-01 00:00:00
abstract::Recent research developments support the following views regarding antigen recognition in autoimmune demyelinating disease: there may be no single autoimmune target protein; diverse peptide self-determinants from multiple myelin proteins can be recognized; target determinant epitopes may differ among individuals; and ...
journal_title:Current opinion in immunology
pub_type: 杂志文章,评审
doi:10.1016/0952-7915(94)90009-4
更新日期:1994-12-01 00:00:00