Diversity in CD8(+) T cell differentiation.

abstract：:The development and maintenance of regulatory T (T-reg) cells is crucial for determining the level of reactivity in the immune system. Until recently, however, surprisingly little was known about the factors involved in the development of these cells in the thymus or the mechanisms that maintain them in the periphery....

journal_title：Current opinion in immunology

authors： Liston A,Rudensky AY

更新日期：2007-04-01 00:00:00

abstract：:Dicer is a multifunctional protein that is essential across species for the generation of microRNAs, a function that is highly conserved across the plant and animal kingdoms. Intriguingly, Dicer exhibits antiviral functions in lower organisms including Drosophila melanogaster and Caenorhabditis elegans. Antiviral acti...

journal_title：Current opinion in immunology

authors： MacKay CR,Wang JP,Kurt-Jones EA

更新日期：2014-02-01 00:00:00

abstract：:Intimate interactions between multipotential hemopoietic stem cells and their microenvironment work towards redefining the identity and the differentiative fate of these primitive cells. Molecular cues delivered by the microenvironment frequently act in an instructive fashion by initiating intracellular signaling path...

journal_title：Current opinion in immunology

authors： Georgopoulos K

更新日期：1997-04-01 00:00:00

abstract：:Applications of the polymerase chain reaction have revolutionized the field of immunogenetics, particularly in studies of human leukocyte antigen class II polymorphism, and more recently in the analysis of T-cell receptor usage. However, the enormous diversity and variability of the T-cell receptor complex have made t...

journal_title：Current opinion in immunology

authors： Panzara MA,Oksenberg JR,Steinman L

更新日期：1992-04-01 00:00:00

abstract：:Natural killer T (NKT) cells are a distinct lymphocyte lineage that regulates immune responses. During their development in the thymus, immature uncommitted double-positive CD4+CD8+ thymocytes that rearrange the semi-invariant T-cell receptor found on mature NKT cells are positively selected by the non-classical MHC c...

journal_title：Current opinion in immunology

authors： Matsuda JL,Gapin L

更新日期：2005-04-01 00:00:00

abstract：:Precursor B cells assemble a diverse repertoire of immunoglobulin (Ig) genes by the process of V(D)J recombination. Assembly of IgH genes is regulated in a tissue- and stage-specific manner via the activation and then the inactivation of distinct regions within the one megabase IgH locus. Recent studies have shown tha...

journal_title：Current opinion in immunology

authors： Sen R,Oltz E

更新日期：2006-06-01 00:00:00

abstract：:MHC class I molecules present degradation products derived from intracellular proteins, whereas MHC class II molecules generally present peptides derived from extracellular or surface proteins. Recent insights into the cell biology of MHC class I and II molecules explain this difference. ...

journal_title：Current opinion in immunology

authors： Neefjes JJ,Momburg F

更新日期：1993-02-01 00:00:00

abstract：:Protective and pathogenic immune responses were initially thought to be determined by the differentiation of naïve T cells into Th1 and Th2 effector subsets and the immunosuppressive activity of thymic-derived regulatory T cells. It is now clear that naïve T cells can also differentiate into 'induced' regulatory T cel...

journal_title：Current opinion in immunology

authors： Sundrud MS,Rao A

更新日期：2007-06-01 00:00:00

abstract：:One hundred years ago, the 1918 H1N1 Pandemic killed 20 million people worldwide. Despite the introduction of a worldwide surveillance system, large-scale production of influenza vaccines coupled with annual vaccination schemes, influenza remains a major public health concern. Prevention of influenza on a population b...

journal_title：Current opinion in immunology

authors： Andrews SF,McDermott AB

更新日期：2018-08-01 00:00:00

abstract：:Thymocytes co-expressing the CD4 and CD8 co-receptors differentiate into mature T cells that express either CD4 or CD8 and have helper or cytotoxic functions, respectively. Recent studies indicate that commitment to the CD4+ or CD8+ lineages occurs stochastically, but retention of the appropriate co-receptor is requir...

journal_title：Current opinion in immunology

authors： Davis CB,Littman DR

更新日期：1994-04-01 00:00:00

abstract：:Many recent studies suggest an involvement of gamma delta T cells in the immune response to infectious pathogens including viruses, bacteria and eukaryotic parasites. However, it remains unclear whether the responses of gamma delta T cells are specifically directed against antigens derived from these pathogens or agai...

journal_title：Current opinion in immunology

authors： Born WK,Harshan K,Modlin RL,O'Brien RL

更新日期：1991-08-01 00:00:00

abstract：:Three known lineages of antigen-presenting molecules restrict T-cell responses to microbial antigens: MHC class I and MHC encoded class I like molecules present peptides derived from the proteolysis of intracellular pathogens, MHC class ii molecules present peptides derived from the proteolysis of extracellular pathog...

journal_title：Current opinion in immunology

authors： Melián A,Beckman EM,Porcelli SA,Brenner MB

更新日期：1996-02-01 00:00:00

abstract：:The germinal centre (GC) is a specialized cellular structure that forms in response to antigenic stimulation. It generates long-term humoral immunity through the production of memory B cells and long-lived antibody-secreting plasma cells. Conventional GCs form within secondary lymphoid organs, where networks of specia...

journal_title：Current opinion in immunology

authors： Silva-Cayetano A,Linterman MA

更新日期：2020-04-20 00:00:00

abstract：:The concept of induction immunosuppression is evolving. Once used to buttress the inadequacies of past maintenance immunosuppressive regimens, it is now being used to permit effective maintenance immunosuppression using ever decreasing amounts of modern agents. In addition to lymphocyte depletion, with which it was on...

journal_title：Current opinion in immunology

authors： Hale DA

更新日期：2004-10-01 00:00:00

abstract：:The invariant chain (Ii) has been shown to play a critical role in the assembly, intracellular transport and function of MHC class II molecules. Recent studies suggest that these distinct activities can in many cases be attributed to distinct isoforms of Ii or to specific regions within it. Thus, regulation of Ii synt...

journal_title：Current opinion in immunology

authors： Sant AJ,Miller J

更新日期：1994-02-01 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

authors： Elsbach P,Weiss J

更新日期：1998-02-01 00:00:00

abstract：:For many years IL-33 has been widely studied in the context of T helper type 2 (Th2)-driven inflammatory disorders. Interestingly, IL-33 has now emerged as a cytokine with a plethora of pleiotropic properties. Depending on the immune cells targeted by IL-33, it is reported to not only promote Th2 immunity, but also to...

journal_title：Current opinion in immunology

authors： Villarreal DO,Weiner DB

更新日期：2014-06-01 00:00:00

abstract：:Vascular endothelial cells participate in the process of allograft rejection by promoting both the recruitment and the activation of alloreactive T cells. There have been three major recent advances in the field of interactions between T cells and endothelial cells that are of direct relevance to the process of cell-m...

journal_title：Current opinion in immunology

authors： Briscoe DM,Alexander SI,Lichtman AH

更新日期：1998-10-01 00:00:00

abstract：:B-cell antigen receptor (BCR) signals are crucial for initiation of humoral immune responses and must be actively modulated and/or terminated in preparation for receipt of subsequent cues for progression. BCR signaling is also actively inhibited in autoreactive cells in which unresponsiveness is maintained by anergy. ...

journal_title：Current opinion in immunology

authors： Gauld SB,Merrell KT,Cambier JC

更新日期：2006-06-01 00:00:00

abstract：:Recent studies of the regulation of antigen receptor rearrangement have revealed several completely new levels of control. Not only do antigen receptor loci undergo changes in histone modifications as they become accessible for recombination, but also the number of different histone modifications and the variation at ...

journal_title：Current opinion in immunology

authors： Feeney AJ

更新日期：2011-04-01 00:00:00

abstract：:A major problem in the analysis of vaccine candidates is the lack of any agreed upon surrogates of efficacy, which means that for diseases that depend on a strong T cell response (HIV, TB especially) the only option is to perform an efficacy trial, involving thousands of subjects, enormous costs, and years before the ...

journal_title：Current opinion in immunology

authors： Davis MM

更新日期：2020-08-01 00:00:00

abstract：:The strong genetic association of ERAP1 (endoplasmic reticulum aminopeptidase 1) with ankylosing spondylitis (AS), which is restricted to HLA-B27 positive cases, has profound pathogenetic implications. ERAP1 is involved in trimming peptides to optimal length for binding to HLA class 1 molecules, thereby not only affec...

journal_title：Current opinion in immunology

authors： Keidel S,Chen L,Pointon J,Wordsworth P

更新日期：2013-02-01 00:00:00

abstract：:V(D)J recombination not only comprises the molecular mechanism that insures diversity of the immune system but also constitutes a critical checkpoint in the developmental program of B and T lymphocytes. The analysis of human patients with severe combined immune deficiency (SCID) has enabled (and will enable in the fut...

journal_title：Current opinion in immunology

authors： de Villartay JP,Poinsignon C,de Chasseval R,Buck D,Le Guyader G,Villey I

更新日期：2003-10-01 00:00:00

abstract：:Peptide-MHC interactions govern the fate of T cells in the thymus and the peripheral T cell repertoire. Recent progress has involved investigating how different peptides influence T cell selection and mature T cell function and the subsequent implications for tolerance and autoimmunity. ...

journal_title：Current opinion in immunology

authors： Ohashi PS

更新日期：1996-12-01 00:00:00

abstract：:Tumors of diverse origin have recently been shown to express CD95 ligand and to induce apoptosis in CD95-expressing targets in vitro; however, in vivo, enhanced tumor growth and rejection have both been observed as a consequence of either immunosuppressive or proinflammatory functions of CD95 ligand. The final in vivo...

journal_title：Current opinion in immunology

authors： Walker PR,Saas P,Dietrich PY

更新日期：1998-10-01 00:00:00

abstract：:Innate immunity, our inborn immediate defence mechanism, was thought for a long time to be non-specific and, consequently, research into innate mechanisms often took second place to research into adaptive immunity. In recent decades, however, the spotlight has shone on groundbreaking advances into mechanisms of innate...

journal_title：Current opinion in immunology

authors： Coutinho A,Poltorack A

更新日期：2003-12-01 00:00:00

abstract：:Infection with helminths has been associated with lower rates of asthma and other allergic diseases. This has been attributed, in part, to the ability of helminths to induce regulatory T cells that suppress inappropriate immune responses to allergens. Recent compelling evidence suggests that helminths may promote regu...

journal_title：Current opinion in immunology

authors： Logan J,Navarro S,Loukas A,Giacomin P

更新日期：2018-10-01 00:00:00

abstract：:Type I and type II interferons (IFNα/β and IFNγ) are cytokines that play indispensable roles in directing myeloid cell activity during inflammatory and immune responses. Each IFN type binds a distinct receptor (IFNAR or IFNGR) to transduce signals that reshape gene expression and function of myeloid and other cell typ...

journal_title：Current opinion in immunology

authors： Crisler WJ,Lenz LL

更新日期：2018-10-01 00:00:00

abstract：:We are in a 'golden age' of mouse genetics. Genetic engineering and micromanipulation techniques now allow not only the overexpression or misexpression of transgenes randomly inserted into the mouse genome, but also the directed homologous replacement of normal genes with transgenes coding for null or mutant alleles (...

journal_title：Current opinion in immunology

authors： Seldin DC

更新日期：1995-10-01 00:00:00

abstract：:Immunity to intracellular pathogens and cancer relies on the generation of robust CD8(+) T cell effector responses as well as the establishment of immunological memory. During a primary immune response CD8(+) T cells experience diverse extracellular environmental cues and cell-cell interactions that trigger downstream...

journal_title：Current opinion in immunology

authors： Thaventhiran JE,Fearon DT,Gattinoni L

更新日期：2013-06-01 00:00:00