abstract：:Mutational spectra analysis of 15 immunoglobulin genes suggested that consensus motifs RGYW and WA were universal descriptors of somatic hypermutation. Highly mutable sites, "hotspots", that matched WA were preferentially found in one DNA strand and RGYW hotspots were found in both strands. Analysis of base-substituti...

journal_title：Nature immunology

authors： Rogozin IB,Pavlov YI,Bebenek K,Matsuda T,Kunkel TA

更新日期：2001-06-01 00:00:00

abstract：:Inhibitory natural killer (NK) cell receptors down-regulate the cytotoxicity of NK cells upon recognition of specific class I major histocompatibility complex (MHC) molecules on target cells. We report here the crystal structure of the inhibitory human killer cell immunoglobulin-like receptor 2DL1 (KIR2DL1) bound to i...

journal_title：Nature immunology

authors： Fan QR,Long EO,Wiley DC

更新日期：2001-05-01 00:00:00

abstract：:Despite accumulating evidence that regulatory T cells play a crucial role in preventing autoimmunity, the processes underlying their generation during immune repertoire formation are unknown. We show here that interactions with a single self-peptide can induce thymocytes that bear an autoreactive T cell receptor (TCR)...

journal_title：Nature immunology

authors： Jordan MS,Boesteanu A,Reed AJ,Petrone AL,Holenbeck AE,Lerman MA,Naji A,Caton AJ

更新日期：2001-04-01 00:00:00

abstract：:EAE can refer either to experimental autoimmune encephalomyelitis or experimental allergic encephalomyelitis. Although EAE is classically a prototypic T helper 1 (TH1) cell-mediated autoimmune disease, it can also be induced by TH2 cells. Characteristically, the most severe manifestation of allergy, anaphylaxis, is as...

journal_title：Nature immunology

authors： Pedotti R,Mitchell D,Wedemeyer J,Karpuj M,Chabas D,Hattab EM,Tsai M,Galli SJ,Steinman L

更新日期：2001-03-01 00:00:00

abstract：:Chemokines facilitate leukocyte migration and positioning as well as other processes such as angiogenesis and leukocyte degranulation. The burgeoning knowledge on chemokines and their receptors has influenced many aspects of immunology, in part because cell migration is intimately related to leukocyte function. This o...

journal_title：Nature immunology

authors： Mackay CR

更新日期：2001-02-01 00:00:00

abstract：:Indoleamine 2,3 dioxygenase (IDO) activity during pregnancy protects developing fetuses from maternal immune responses in CBA mice. We show here that fetal allografts were rejected only in mating combinations where paternally inherited tissue antigens elicited potent maternal T cell responses after exposure to IDO inh...

journal_title：Nature immunology

authors： Mellor AL,Sivakumar J,Chandler P,Smith K,Molina H,Mao D,Munn DH

更新日期：2001-01-01 00:00:00

abstract：:Cell death is achieved by two fundamentally different mechanisms: apoptosis and necrosis. Apoptosis is dependent on caspase activation, whereas the caspase-independent necrotic signaling pathway remains largely uncharacterized. We show here that Fas kills activated primary T cells efficiently in the absence of active ...

journal_title：Nature immunology

authors： Holler N,Zaru R,Micheau O,Thome M,Attinger A,Valitutti S,Bodmer JL,Schneider P,Seed B,Tschopp J

更新日期：2000-12-01 00:00:00

abstract：:We evaluated changes in the signaling potentials and proliferative capacity of single antigen-specific T helper (TH) cells during a primary immune response to a protein antigen. At the peak of cellular expansion in vivo all antigen-specific TH cells exhibited a profound block in CD3- and CD4-mediated mobilization of i...

journal_title：Nature immunology

authors： Bikah G,Pogue-Caley RR,McHeyzer-Williams LJ,McHeyzer-Williams MG

更新日期：2000-11-01 00:00:00

abstract：:We describe a protein with the hallmarks of a chemokine, designated CXCL16, that is made by dendritic cells (DCs) in lymphoid organ T cell zones and by cells in the splenic red pulp. CXCL16 contains a transmembrane domain and both membrane-bound and soluble forms are produced. Naïve CD8 T cells, natural killer T cells...

journal_title：Nature immunology

authors： Matloubian M,David A,Engel S,Ryan JE,Cyster JG

更新日期：2000-10-01 00:00:00

abstract：:Chemoattractant-stimulated granule release from neutrophils, basophils and eosinophils is critical for the innate immune response against infectious bacteria. Interleukin 8 (IL-8) activation of the chemokine receptor CXCRI was found to stimulate rapid formation of beta-arrestin complexes with Hck or c-Fgr. Formation o...

journal_title：Nature immunology

authors： Barlic J,Andrews JD,Kelvin AA,Bosinger SE,DeVries ME,Xu L,Dobransky T,Feldman RD,Ferguson SS,Kelvin DJ

更新日期：2000-09-01 00:00:00

abstract：:Xenogeneic tissues induce vigorous T cell immunity, reflecting the ability of costimulatory molecules to function across species barriers. We describe a strategy to inhibit costimulation that exploits species differences using the model of porcine pancreatic islet transplantation into mice. Mice were immunized with ch...

journal_title：Nature immunology

authors： Rogers NJ,Mirenda V,Jackson I,Dorling A,Lechler RI

更新日期：2000-08-01 00:00:00

abstract：:The actin cytoskeleton seems to play two critical roles in the activation of T cells. One of these roles is T cell shape development and movement, including formation of the immunological synapse. The other is the formation of a scaffold for signaling components. This review focuses on the recent convergence of cell b...

journal_title：Nature immunology

authors： Dustin ML,Cooper JA

更新日期：2000-07-01 00:00:00

abstract：:The activation of dendritic cells (DC) to produce interleukin 12 (IL-12) is thought to be a key step in the initiation of cell-mediated immunity to intracellular pathogens. Here we show that ligation of the C-C chemokine receptor (CCR) 5 can provide a major signal for the induction of IL-12 synthesis by the CD8 alpha+...

journal_title：Nature immunology

authors： Aliberti J,Reis e Sousa C,Schito M,Hieny S,Wells T,Huffnagle GB,Sher A

更新日期：2000-07-01 00:00:00