Abstract:
:Actin reorganization at the immunological synapse is required for the amplification and generation of a functional immune response. Using small interfering RNA, we show here that dynamin 2 (Dyn2), a large GTPase involved in receptor-mediated internalization, did not alter antibody-mediated T cell receptor internalization but considerably affected T cell receptor-stimulated T cell activation by regulating multiple biochemical signaling pathways and the accumulation of F-actin at the immunological synapse. Moreover, Dyn2 interacted directly with the Rho family guanine nucleotide exchange factor Vav1, and this interaction was required for T cell activation. These data identify a functionally important interaction between Dyn2 and Vav1 that regulates actin reorganization and multiple signaling pathways in T lymphocytes.
journal_name
Nat Immunoljournal_title
Nature immunologyauthors
Gomez TS,Hamann MJ,McCarney S,Savoy DN,Lubking CM,Heldebrant MP,Labno CM,McKean DJ,McNiven MA,Burkhardt JK,Billadeau DDdoi
10.1038/ni1168keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
261-70issue
3eissn
1529-2908issn
1529-2916pii
ni1168journal_volume
6pub_type
杂志文章abstract::Toll-like receptor (TLR) signaling activates the inhibitor of transcription factor NF-κB (IκB) kinase (IKK) complex, which governs NF-κB-mediated transcription during inflammation. The RNase regnase-1 serves a critical role in preventing autoimmunity by controlling the stability of mRNAs that encode cytokines. Here we...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.2137
更新日期:2011-10-30 00:00:00
abstract::Using whole-genome microarray data sets of the Immunological Genome Project, we demonstrate a closer transcriptional relationship between NK cells and T cells than between any other leukocytes, distinguished by their shared expression of genes encoding molecules with similar signaling functions. Whereas resting NK cel...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.2395
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abstract::The gammadelta T cells are prevalent in the mucosal epithelia and are postulated to act as 'sentries' for maintaining tissue integrity. What these gammadelta T cells recognize is poorly defined, but given the restricted T cell receptor (TCR) repertoire, the idea that they are selected by self antigens of low complexit...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1267
更新日期:2005-12-01 00:00:00
abstract::Dendritic cells (DCs) are critical in immune responses, linking innate and adaptive immunity. We found here that DC-specific deletion of the transcription factor STAT5 was not critical for development but was required for T helper type 2 (TH2), but not TH1, allergic responses in both the skin and lungs. Loss of STAT5 ...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.2541
更新日期:2013-04-01 00:00:00
abstract::The CD4 versus CD8 lineage specification of thymocytes is linked to coreceptor expression. The transcription factor MAZR has been identified as an important regulator of Cd8 expression. Here we show that variegated CD8 expression by loss of Cd8 enhancers was reverted in MAZR-deficient mice, which confirms that MAZR ne...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.1860
更新日期:2010-05-01 00:00:00
abstract::Allergic inflammation has crucial roles in allergic diseases such as asthma. It is therefore important to understand why and how the immune system responds to allergens. Here we found that full-length interleukin 33 (IL-33FL), an alarmin cytokine with critical roles in type 2 immunity and asthma, functioned as a prote...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-018-0067-5
更新日期:2018-04-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1265
更新日期:2005-12-01 00:00:00
abstract::A20 is an anti-inflammatory protein that is strongly linked to human disease. Here, we find that mice expressing three distinct targeted mutations of A20's zinc finger 7 (ZF7) ubiquitin-binding motif uniformly developed digit arthritis with features common to psoriatic arthritis, while mice expressing point mutations ...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-020-0634-4
更新日期:2020-04-01 00:00:00
abstract::Innate T cells, including invariant natural killer T (iNKT) and mucosal-associated innate T (MAIT) cells, are a heterogeneous T lymphocyte population with effector properties preprogrammed during their thymic differentiation. How this program is initiated is currently unclear. Here, we show that the transcription fact...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-020-0737-y
更新日期:2020-09-01 00:00:00
abstract::Healthy individuals of African ancestry have neutropenia that has been linked with the variant rs2814778(G) of the gene encoding atypical chemokine receptor 1 (ACKR1). This polymorphism selectively abolishes the expression of ACKR1 in erythroid cells, causing a Duffy-negative phenotype. Here we describe an unexpected ...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.3763
更新日期:2017-07-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章,评审
doi:10.1038/ni.2796
更新日期:2014-02-01 00:00:00
abstract::CD4(+) T cells producing interleukin 17 (IL-17) are associated with autoimmunity, although the precise mechanisms that control their development are undefined. Here we present data that challenge the idea of a shared developmental pathway with T helper type 1 (T(H)1) or T(H)2 lineages and instead favor the idea of a d...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1254
更新日期:2005-11-01 00:00:00
abstract::During unresolved infections, some viruses escape immunological control and establish a persistant reservoir in certain cell types, such as human immunodeficiency virus (HIV), which persists in follicular helper T cells (TFH cells), and Epstein-Barr virus (EBV), which persists in B cells. Here we identified a speciali...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.3543
更新日期:2016-10-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-018-0230-z
更新日期:2018-12-01 00:00:00
abstract::Bacterial lipopolysaccharide triggers human caspase-4 (murine caspase-11) to cleave gasdermin-D and induce pyroptotic cell death. How lipopolysaccharide sequestered in the membranes of cytosol-invading bacteria activates caspases remains unknown. Here we show that in interferon-γ-stimulated cells guanylate-binding pro...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-020-0697-2
更新日期:2020-08-01 00:00:00
abstract::Activated T helper cells produce many cytokines, some of which are secreted through the immunological synapse toward the antigen-presenting cell. Here we have used immunocytochemistry, live-cell imaging and a surface-mediated secretion assay to show that there are two cytokine export pathways in T helper cells. Some c...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1304
更新日期:2006-03-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1239
更新日期:2005-09-01 00:00:00
abstract::An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title:Nature immunology
pub_type: 已发布勘误
doi:10.1038/s41590-019-0531-x
更新日期:2019-11-01 00:00:00
abstract::During the productive interaction of T cells with antigen-presenting cells (APCs), engaged receptors, including the T cell antigen receptors and their associated tyrosine kinases, assemble into spatially segregated supramolecular activation clusters (SMACs) at the area of cell contact. Here, we studied intracellular s...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni836
更新日期:2002-10-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1053
更新日期:2004-04-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.3319
更新日期:2016-02-01 00:00:00
abstract::Regions of the normal arterial intima predisposed to atherosclerosis are sites of ongoing monocyte trafficking and also contain resident myeloid cells with features of dendritic cells. However, the pathophysiological roles of these cells are poorly understood. Here we found that intimal myeloid cells underwent reverse...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.3564
更新日期:2016-11-01 00:00:00
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journal_title:Nature immunology
pub_type: 杂志文章
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更新日期:2005-04-01 00:00:00
abstract::Foxp3+ regulatory T cells (Treg cells) are the central component of peripheral immune tolerance. Whereas a dysregulated Treg cytokine signature has been observed in autoimmune diseases, the regulatory mechanisms underlying pro- and anti-inflammatory cytokine production are elusive. Here, we identify an imbalance betwe...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/s41590-018-0236-6
更新日期:2018-12-01 00:00:00
abstract::CD1 proteins present various glycolipid antigens to T cells, but the cellular mechanisms that control which particular glycolipids generate T cell responses are not understood. We show here that T cell recognition of glucose monomycolate antigens with long (C(80)) alkyl chains involves the delivery of CD1b proteins an...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni780
更新日期:2002-05-01 00:00:00
abstract::The molecular mechanisms directing the development of 'natural' CD4+CD25+Foxp3+ regulatory T cells (T(reg) cells) in the thymus are not thoroughly understood. We show here that conditional deletion of transforming growth factor-beta receptor I (TbetaRI) in T cells blocked the appearance of CD4+CD25+Foxp3+ thymocytes a...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.1607
更新日期:2008-06-01 00:00:00
abstract::Current approaches for the treatment of obesity, including diet and lifestyle changes, have not been successful in curtailing the obesity epidemic. The higher incidence of inflammation-associated chronic disease and greater susceptibility to infection in obese people represents a growing health threat. Improved unders...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni.2343
更新日期:2012-07-19 00:00:00
abstract::Ingested antigens lead to the generation of effector T cells that secrete interleukin 4 (IL-4) rather than interferon-gamma (IFN-gamma) and are capable of influencing naive T cells in their immediate environment to do the same. Using chimeric mice generated by aggregation of two genotypically different embryos, we fou...
journal_title:Nature immunology
pub_type: 杂志文章
doi:10.1038/ni1077
更新日期:2004-06-01 00:00:00
abstract::Programmed cell death is essential for the development and maintenance of the immune system and its responses to exogenous and endogenous stimuli. Studies have demonstrated that in addition to caspase-dependent apoptosis, necrosis dependent on the kinases RIP1 and RIP3 (also called necroptosis) is a major programmed c...
journal_title:Nature immunology
pub_type: 杂志文章,评审
doi:10.1038/ni.2159
更新日期:2011-11-16 00:00:00
abstract::Cysteinyl leukotrienes are established mediators of bronchial asthma and have agonist roles analogous to those of histamine in allergic rhinitis. We now know that the substance originally termed slow-reacting substance of anaphylaxis was composed of three cysteinyl leukotrienes that act in the inflammatory response vi...
journal_title:Nature immunology
pub_type: 历史文章,杂志文章
doi:10.1038/ni0208-113
更新日期:2008-02-01 00:00:00