Abstract:
:Why HIV-specific CD8(+) T cells ultimately fail to clear or control HIV infection is not known. We show here that HIV-specific CD8(+) T cells exhibit increased sensitivity to CD95/Fas-induced apoptosis. This apoptosis is 3-fold higher compared to CMV-specific CD8(+) T cells from the same patients. HIV-specific CD8(+) T cells express the CD45RA(-)CD62L(-) but lack the CD45RA(+)CD62L(-) T cell effector memory (T(EM)) phenotype. This skewing is not found in CMV- and EBV-specific CD8(+) T cells in HIV-infected individuals. CD95/Fas-induced apoptosis is much higher in the CD45RA(-)CD62L(-) T(EM) cells. However, cytotoxicity and IFNgamma production by HIV-specific CD8(+) T cells is not impaired. Our data suggest that the survival and differentiation of HIV-specific CD8(+) T cells may be compromised by CD95/Fas apoptosis induced by FasL-expressing HIV-infected cells.
journal_name
Immunityjournal_title
Immunityauthors
Mueller YM,De Rosa SC,Hutton JA,Witek J,Roederer M,Altman JD,Katsikis PDdoi
10.1016/s1074-7613(01)00246-1keywords:
subject
Has Abstractpub_date
2001-12-01 00:00:00pages
871-82issue
6eissn
1074-7613issn
1097-4180pii
S1074-7613(01)00246-1journal_volume
15pub_type
杂志文章相关文献
IMMUNITY文献大全abstract::The mechanisms underpinning integration of instructions that program naive CD8+ T cells for effector and/or memory differentiation are not well understood. Herein, we demonstrate that interleukin-12 (IL-12) enhanced and sustained antigen and costimulatory molecule (B7.1)-induced mTOR kinase activity in naive CD8+ (OT-...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2009.10.010
更新日期:2010-01-29 00:00:00
abstract::CD4(+) T cells differentiate into phenotypically distinct T helper cells upon antigenic stimulation. Regulation of plasticity between these CD4(+) T-cell lineages is critical for immune homeostasis and prevention of autoimmune disease. However, the factors that regulate lineage stability are largely unknown. Here we i...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2015.02.003
更新日期:2015-03-17 00:00:00
abstract::Intraepithelial T lymphocytes possess a (TGF beta)-inducible integrin complex that consists of the beta 7 integrin chain in association with a novel alpha chain, murine alpha M290. Using antibodies directed against the murine alpha M290 chain, IL-3-dependent murine bone marrow-derived mast cells demonstrated positive ...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/1074-7613(94)90070-1
更新日期:1994-08-01 00:00:00
abstract::In this issue of Immunity, Duprez et al. (2011) demonstrate that necroptosis, a form of regulated necrosis that is mediated by the kinases RIPK1 and RIPK3, underlies the lethal effects of tumor necrosis factor in vivo. ...
journal_title:Immunity
pub_type: 评论,杂志文章
doi:10.1016/j.immuni.2011.12.004
更新日期:2011-12-23 00:00:00
abstract::Recent experiments involving disruption of the Oct-2 gene have shown that this largely B cell-restricted transcription factor is not required in the early stages of B cell development. However, B cells that lack Oct-2 may be blocked from differentiation past the surface immunoglobulin-positive stage. To identify a pos...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/1074-7613(94)90034-5
更新日期:1994-11-01 00:00:00
abstract::Memory lymphocytes are characterized by their ability to exhibit a rapid response to the recall antigen, in which differential transcription is important, yet the underlying mechanism is not understood. We report here a genome-wide analysis of histone methylation on two histone H3 lysine residues (H3K4me3 and H3K27me3...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2009.05.006
更新日期:2009-06-19 00:00:00
abstract::The cytoplasm is usually a DNA-free zone, but during fertilization, sperm DNA enters oocyte cytoplasm and could potentially trigger a response. Abe et al. (2017) identify NLRP14 as a germ-cell-specific negative regulator of DNA sensing that may be of particular importance during fertilization. ...
journal_title:Immunity
pub_type: 评论,杂志文章
doi:10.1016/j.immuni.2017.04.002
更新日期:2017-04-18 00:00:00
abstract::Asthma is a chronic inflammatory airway disease associated with type 2 cytokines interleukin-4 (IL-4), IL-5, and IL-13, which promote airway eosinophilia, mucus overproduction, bronchial hyperresponsiveness (BHR), and immunogloubulin E (IgE) synthesis. However, only half of asthma patients exhibit signs of an exacerba...
journal_title:Immunity
pub_type: 杂志文章,评审
doi:10.1016/j.immuni.2019.03.018
更新日期:2019-04-16 00:00:00
abstract::The kinases RIPK1 and RIPK3 and the pseudo-kinase MLKL have been identified as key regulators of the necroptotic cell death pathway, although a role for MLKL within the whole animal has not yet been established. Here, we have shown that MLKL deficiency rescued the embryonic lethality caused by loss of Caspase-8 or FAD...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2016.07.016
更新日期:2016-09-20 00:00:00
abstract::Memory CD8+ T cell quantity and quality determine protective efficacy against reinfection. Heterologous prime boost vaccination minimizes contraction of anamnestic effectors and maximizes memory CD8+ T cell quantity but reportedly erodes proliferative potential and protective efficacy. This study exploited heterologou...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2013.07.003
更新日期:2013-07-25 00:00:00
abstract::Clonal selection theories postulate that lymphocyte fate is regulated by antigen receptor specificity. However, lymphocyte apoptosis is induced through nonantigen-specific receptors such as Fas (CD95/APO-1) or TNFR. We define a selective TCR that controls apoptosis by Fas or TNFR stimulation. Variant ligands can deliv...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/s1074-7613(00)80613-5
更新日期:1998-09-01 00:00:00
abstract::HLA-DM (DM) is a nonclassical MHC class II molecule that interacts with classical MHC II molecules in acidic compartments. During this association DM is supposed to catalyze the release of invariant chain (Ii)-derived CLIP peptides, as well as other peptides bound with low kinetic stability. Here we provide evidence t...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/s1074-7613(00)80332-5
更新日期:1997-03-01 00:00:00
abstract::Activation of the RIG-I signaling molecule is essential for antiviral immunity but mechanisms downmodulating the response are ill defined. In this issue of Immunity, Rajput et al. (2011) describe caspase-8-mediated RIP1 cleavage as a key step for restricting RIG-I signaling. ...
journal_title:Immunity
pub_type: 评论,杂志文章
doi:10.1016/j.immuni.2011.03.011
更新日期:2011-03-25 00:00:00
abstract::The stromal scaffold of the lymph node (LN) paracortex is built by fibroblastic reticular cells (FRCs). Conditional ablation of lymphotoxin-β receptor (LTβR) expression in LN FRCs and their mesenchymal progenitors in developing LNs revealed that LTβR-signaling in these cells was not essential for the formation of LNs....
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2013.03.012
更新日期:2013-05-23 00:00:00
abstract::Blood, lymphoid tissues, and placenta contain diverse subpopulations of natural killer (NK) cells that possess distinct immune functions. Recent studies have shown that human and mouse gut-associated lymphoid tissues harbor a unique NK cell subset that specializes in production of interleukin (IL)-22. This cytokine pl...
journal_title:Immunity
pub_type: 杂志文章,评审
doi:10.1016/j.immuni.2009.06.008
更新日期:2009-07-17 00:00:00
abstract::NOD-like receptors (NLRs) are increasingly implicated in regulating pathogen-sensing pathways. In this issue of Immunity, Zhang et al. (2014) describe a role for NLRC3 in regulating STING and the inflammatory response to cytosolic DNA. ...
journal_title:Immunity
pub_type: 评论,杂志文章
doi:10.1016/j.immuni.2014.02.007
更新日期:2014-03-20 00:00:00
abstract::mTORC2 is a metabolic regulatory complex activated by PI3K. In this issue of Immunity, Kishore et al. (2017) demonstrate a specialized role for this complex in the migration of regulatory T (Treg) cells to sites of inflammation rather than their differentiation and survival. ...
journal_title:Immunity
pub_type: 评论,杂志文章
doi:10.1016/j.immuni.2017.11.006
更新日期:2017-11-21 00:00:00
abstract::Interleukin-1 (IL-1) receptor signaling is necessary for control of Mycobacterium tuberculosis (Mtb) infection, yet the role of its two ligands, IL-1α and IL-1β, and their regulation in vivo are poorly understood. Here, we showed that both IL-1α and IL-1β are critically required for host resistance and identified two ...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2011.12.002
更新日期:2011-12-23 00:00:00
abstract::Reorganization of the actin cytoskeleton requires nucleating factors, which initiate actin fiber formation. In this issue of Immunity, the functions of two classes of actin nucleators are examined in T lymphocytes, giving insight into the regulation of T cell polarity (Gomez et al., 2007). ...
journal_title:Immunity
pub_type: 评论,杂志文章,评审
doi:10.1016/j.immuni.2007.02.007
更新日期:2007-02-01 00:00:00
abstract::Metabolic engagement is intrinsic to immune cell function. Prostaglandin E2 (PGE2) has been shown to modulate macrophage activation, yet how PGE2 might affect metabolism is unclear. Here, we show that PGE2 caused mitochondrial membrane potential (Δψm) to dissipate in interleukin-4-activated (M(IL-4)) macrophages. Effe...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2018.10.011
更新日期:2018-12-18 00:00:00
abstract::The transcription factor Pax5 is a critical regulator of B lymphocyte commitment and identity. In this issue of Immunity, Schebesta et al. (2007) demonstrate how Pax5 activates 170 different genes involved in B cell signaling, adhesion, migration, and maturation. ...
journal_title:Immunity
pub_type: 杂志文章,评审
doi:10.1016/j.immuni.2007.07.001
更新日期:2007-07-01 00:00:00
abstract::Epithelial cells orchestrate pulmonary homeostasis and pathogen defense and play a crucial role in the initiation of allergic immune responses. Maintaining the balance between homeostasis and inappropriate immune activation and associated pathology is particularly complex at mucosal sites that are exposed to billions ...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2015.10.012
更新日期:2015-11-17 00:00:00
abstract::Natural hosts for simian immunodeficiency virus (SIV) can be, and are often naturally, infected with species-specific SIVs, but do not develop acquired immunodeficiency syndrome (AIDS). These natural hosts maintain high SIV viral loads, but avoid immunodeficiency. Elucidating the mechanisms that allow natural hosts to...
journal_title:Immunity
pub_type: 杂志文章,评审
doi:10.1016/j.immuni.2010.06.004
更新日期:2010-06-25 00:00:00
abstract::Viruses have evolved elaborate mechanisms to target many aspects of the host's immune response. The cytokine IFN-gamma plays a central role in resistance of the host to infection via direct antiviral effects as well as modulation of the immune response. In this study, we demonstrate that the Epstein-Barr virus (EBV) i...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/s1074-7613(01)00226-6
更新日期:2001-11-01 00:00:00
abstract::The signaling pathways linked to membrane immunoglobulin (mIg) that are regulated by the coreceptors CD19 and CD22 are not known. The mitogen-activated protein (MAP) kinases ERK2, JNK, and p38 couple extracellular signals to transcriptional responses. The capacity of mIg to activate these MAP kinases is synergisticall...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/s1074-7613(00)80510-5
更新日期:1997-07-01 00:00:00
abstract::Tissue macrophages arise during embryogenesis from yolk-sac (YS) progenitors that give rise to primitive YS macrophages. Until recently, it has been impossible to isolate or derive sufficient numbers of YS-derived macrophages for further study, but data now suggest that induced pluripotent stem cells (iPSCs) can be dr...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2017.06.017
更新日期:2017-07-18 00:00:00
abstract::Janus kinases are critical for cytokine signaling. Mutations of Jak3 cause primary immunodeficiency, but Minegishi et al. (2006) now show that mutation of another Jak, tyrosine kinase 2, underlies another human immunodeficiency syndrome. ...
journal_title:Immunity
pub_type: 杂志文章,评审
doi:10.1016/j.immuni.2006.10.007
更新日期:2006-11-01 00:00:00
abstract::NKG2D is an activating receptor on CD8(+) T cells and NK cells that has been implicated in immunity against tumors and microbial pathogens. Here we show that RAE-1 is present in prediabetic pancreas islets of NOD mice and that autoreactive CD8(+) T cells infiltrating the pancreas express NKG2D. Treatment with a nondep...
journal_title:Immunity
pub_type: 杂志文章
doi:10.1016/j.immuni.2004.05.008
更新日期:2004-06-01 00:00:00
abstract::Ikaros family members play an important role in hematopoietic development. Thompson et al. (2007) show that pre-BCR signaling induces Aiolos expression, which in turn suppresses the expression of the pre-BCR component lambda5 and eliminates the very structure that signaled its appearance. ...
journal_title:Immunity
pub_type: 评论,杂志文章,评审
doi:10.1016/j.immuni.2007.03.003
更新日期:2007-03-01 00:00:00
abstract::The Foxp3+ T cell lineage is thought to arise from self-specific precursors during development. By using a unique mouse model, Pacholczyk et al. (2007) present compelling evidence that self-specific cells are exceedingly rare among Foxp3(-) and, surprisingly, Foxp3+ subsets. ...
journal_title:Immunity
pub_type: 评论,杂志文章,评审
doi:10.1016/j.immuni.2007.08.008
更新日期:2007-09-01 00:00:00