Potent effects of low levels of MHC class II-associated invariant chain on CD4+ T cell development.

abstract：:To define the role of TRAF proteins in CD40-dependent isotype switching in B cells, we introduced wild-type (WT) and mutant CD40 transgenes that lacked the binding motifs for TRAF6 (CD40deltaTRAF6), TRAF2 and TRAF3 (CD40deltaTRAF2/3), or both (CD40deltaTRAFs) into B cells of CD40(-/-) mice. The in vivo isotype switch ...

journal_title：Immunity

authors： Jabara H,Laouini D,Tsitsikov E,Mizoguchi E,Bhan A,Castigli E,Dedeoglu F,Pivniouk V,Brodeur S,Geha R

更新日期：2002-09-01 00:00:00

abstract：:The transcriptional repressor Blimp-1 is considered the master regulator of plasma-cell differentiation. In this issue of Immunity, Kallies et al. (2007) identify a Blimp-1-independent stage of differentiation, followed by Blimp-1-dependent terminal differentiation. ...

journal_title：Immunity

authors： Klein U,Dalla-Favera R

更新日期：2007-05-01 00:00:00

abstract：:Lentiviral Nef increases T cell signaling activity, but the molecular nature of the stimulus involved is incompletely described. We explored CD4 T cell lipid raft composition in the presence and absence of Nef. Here, the E2 ubiquitin-conjugating enzyme UbcH7, which acts in conjunction with c-Cbl, is absent from lipid ...

journal_title：Immunity

authors： Simmons A,Gangadharan B,Hodges A,Sharrocks K,Prabhakar S,García A,Dwek R,Zitzmann N,McMichael A

更新日期：2005-12-01 00:00:00

abstract：:As humans age, their T cell repertoire becomes dominated by cells exhibiting "memory" characteristics. In this issue of Immunity, Su et al. (2013) demonstrate that a large percentage of virus-specific CD4(+) T cells also exhibit a memory phenotype in unexposed adults. ...

journal_title：Immunity

authors： Nolz JC,Harty JT

更新日期：2013-02-21 00:00:00

abstract：:The thymic medulla provides a microenvironment where medullary thymic epithelial cells (mTECs) express autoimmune regulator and diverse tissue-restricted genes, contributing to launching self-tolerance. Positive selection is essential for thymic medulla formation via a previously unknown mechanism. Here we show that t...

journal_title：Immunity

authors： Hikosaka Y,Nitta T,Ohigashi I,Yano K,Ishimaru N,Hayashi Y,Matsumoto M,Matsuo K,Penninger JM,Takayanagi H,Yokota Y,Yamada H,Yoshikai Y,Inoue J,Akiyama T,Takahama Y

更新日期：2008-09-19 00:00:00

abstract：:The current structural model of the B cell antigen receptor (BCR) describes it as a symmetric protein complex in which one membrane-bound immunoglobulin molecule (mIg) is noncovalently bound on each side by an Ig-alpha/Ig-beta heterodimer. Using peptide-tagged Ig-alpha proteins, blue native polyacrylamide gel electrop...

journal_title：Immunity

authors： Schamel WW,Reth M

更新日期：2000-07-01 00:00:00

abstract：:mel-18 is a mammalian Polycomb group gene encoding a transcriptional repressor with tumor suppressive activity. Overexpression of mel-18 in mice results in cell cycle arrest of B cells upon B cell receptor stimulation with downregulation of c-myc. This phenotype is rescued in mel-18/c-myc double-transgenic mice, sugge...

journal_title：Immunity

authors： Tetsu O,Ishihara H,Kanno R,Kamiyasu M,Inoue H,Tokuhisa T,Taniguchi M,Kanno M

更新日期：1998-10-01 00:00:00

abstract：:Dendritic cell (DC) activation is essential for the induction of immune defense against pathogens, yet needs to be tightly controlled to avoid chronic inflammation and exaggerated immune responses. Here, we identify a mechanism of immune homeostasis by which adaptive immunity, once triggered, tempers DC activation and...

journal_title：Immunity

authors： Carrera Silva EA,Chan PY,Joannas L,Errasti AE,Gagliani N,Bosurgi L,Jabbour M,Perry A,Smith-Chakmakova F,Mucida D,Cheroutre H,Burstyn-Cohen T,Leighton JA,Lemke G,Ghosh S,Rothlin CV

更新日期：2013-07-25 00:00:00

abstract：:T cell activation induces functional changes in cell shape and cytoskeletal architecture. To facilitate the collection of dynamic, high-resolution images of activated T cells, we plated T cells on coverslips coated with antibodies to the T cell receptor (TCR). Using these images, we were able to quantitate the morphol...

journal_title：Immunity

authors： Bunnell SC,Kapoor V,Trible RP,Zhang W,Samelson LE

更新日期：2001-03-01 00:00:00

abstract：:Cytokine signaling via a restricted number of Jak-Stat pathways positively and negatively regulates all cell types involved in the initiation, propagation, and resolution of inflammation. Here, we focus on Jak-Stat signaling in three major cell types involved in inflammatory responses: T cells, neutrophils, and macrop...

journal_title：Immunity

authors： O'Shea JJ,Murray PJ

更新日期：2008-04-01 00:00:00

abstract：:Curing HIV infection has been impossible, with the exception of the "Berlin Patient." Martinez-Navio et al. (2019) in Miami herein present a rare monkey whose virus was controlled for >3 years after a single genetic intervention that led to persistent production of HIV-neutralizing antibodies in vivo. ...

journal_title：Immunity

authors： Liberatore RA,Ho DD

更新日期：2019-03-19 00:00:00

abstract：:Previously, we described AGM-derived endothelial cell lines that either inhibited or permitted the development of erythroid or B cells. We utilized a differential gene expression method to isolate a chemokine, termed WECHE, from one of these cell lines. WECHE inhibited the formation of erythroid cells but had no effec...

journal_title：Immunity

authors： Ohneda O,Ohneda K,Nomiyama H,Zheng Z,Gold SA,Arai F,Miyamoto T,Taillon BE,McIndoe RA,Shimkets RA,Lewin DA,Suda T,Lasky LA

更新日期：2000-02-01 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

authors： Alon R

更新日期：2017-11-21 00:00:00

abstract：:Mutations affecting the Tec kinases Itk and Rlk decrease T cell receptor-induced Ca(2+) mobilization and Erk kinase activation and impair both positive and negative thymic selection. Itk(-/-) and Rlk(-/-)Itk(-/-) mice also have decreased CD4:8 T cell ratios, suggestive of altered CD4:8 lineage commitment. Nonetheless,...

journal_title：Immunity

authors： Broussard C,Fleischacker C,Horai R,Chetana M,Venegas AM,Sharp LL,Hedrick SM,Fowlkes BJ,Schwartzberg PL

更新日期：2006-07-01 00:00:00

abstract：:T lymphocyte receptor CTLA-4 binds costimulatory molecules CD80 (B7-1) and CD86 (B7-2) with high avidity and negatively regulates T cell activation. CTLA-4 functions at the cell surface, yet is primarily localized in intracellular vesicles. Here, we demonstrate cycling of CTLA-4 between intracellular stores and the ce...

journal_title：Immunity

authors： Linsley PS,Bradshaw J,Greene J,Peach R,Bennett KL,Mittler RS

更新日期：1996-06-01 00:00:00

abstract：:Cyclophilin A (CypA/Ppia) is a peptidyl-prolyl isomerase (PPIase) that binds the immunosuppressive drug cyclosporine. The resulting complex blocks T cell function by inhibiting the calcium-dependent phosphatase calcineurin. To identify the native function of CypA, long suspected of regulating signal transduction, we g...

journal_title：Immunity

authors： Colgan J,Asmal M,Neagu M,Yu B,Schneidkraut J,Lee Y,Sokolskaja E,Andreotti A,Luban J

更新日期：2004-08-01 00:00:00

abstract：:Group 2 innate lymphoid cells (ILC2s) release interleukin-13 (IL-13) during protective immunity to helminth infection and detrimentally during allergy and asthma. Using two mouse models to deplete ILC2s in vivo, we demonstrate that T helper 2 (Th2) cell responses are impaired in the absence of ILC2s. We show that MHCI...

journal_title：Immunity

authors： Oliphant CJ,Hwang YY,Walker JA,Salimi M,Wong SH,Brewer JM,Englezakis A,Barlow JL,Hams E,Scanlon ST,Ogg GS,Fallon PG,McKenzie AN

更新日期：2014-08-21 00:00:00

abstract：:The skin barrier is essential for host defense, but how the skin provides protection when the barrier is breached is not well understood. In this issue of Immunity, Gallo and colleagues report that keratinocytes integrate signals from antimicrobial peptides via MAVS signaling to amplify their antiviral immune response...

journal_title：Immunity

authors： Mack MR,Kim BS

更新日期：2016-07-19 00:00:00

abstract：:Gallstone formation in adults is a common, yet incompletely understood disease process. In this issue, Muñoz et al. (2019) report a pathogenic link between neutrophil extracellular traps (NETs) and the formation of gallstones. ...

journal_title：Immunity

authors： O'Neil LJ,Kaplan MJ

更新日期：2019-09-17 00:00:00

abstract：:Adaptor proteins act as conduits to channel upstream signals into downstream effector branches. Two B cell-associated adaptors, Bam32 and Carma1, regulate the ERK, JNK, and NF-kappaB branches of the BCR signaling pathway. Recent studies of Bam32-/- and Carma1-/- mice suggest that each adaptor controls a distinct condu...

journal_title：Immunity

authors： Niiro H,Clark EA

更新日期：2003-11-01 00:00:00

abstract：:To examine the role of the TNF-R superfamily signaling protein TRAF2 in mature B cell development and NF-kappaB activation, conditionally TRAF2-deficient mice were produced. B cells lacking TRAF2 expression in these mice possessed a selective survival advantage, accumulated in the lymph nodes and splenic marginal zone...

journal_title：Immunity

authors： Grech AP,Amesbury M,Chan T,Gardam S,Basten A,Brink R

更新日期：2004-11-01 00:00:00

abstract：:ZAP-70 and Syk are PTKs required for TCR and BCR function, respectively. Loss of the Syk PTK results in a nonfunctional BCR. We provide evidence here that ZAP-70 and Syk are functionally homologous in antigen receptor signaling by demonstrating that expression of ZAP-70 in Syk- B cells reconstitutes BCR function. Reco...

journal_title：Immunity

authors： Kong GH,Bu JY,Kurosaki T,Shaw AS,Chan AC

更新日期：1995-05-01 00:00:00

abstract：:While the majority of purified pluripotential hematopoietic stem cells (PHSC) express c-Kit, the receptor for steel factor, we have phenotypically and functionally separated a distinct class of PHSC that does not express c-Kit. In contrast to c-Kit-positive (c-Kit(pos)) PHSC, the c-Kit-negative (c-Kit(neg)) PHSC do no...

journal_title：Immunity

authors： Ortiz M,Wine JW,Lohrey N,Ruscetti FW,Spence SE,Keller JR

更新日期：1999-02-01 00:00:00

abstract：:Monocytes are circulating, short-lived mononuclear phagocytes, which in mice and man comprise two main subpopulations. Murine Ly6C+ monocytes display developmental plasticity and are recruited to complement tissue-resident macrophages and dendritic cells on demand. Murine vascular Ly6C- monocytes patrol the endotheliu...

journal_title：Immunity

authors： Mildner A,Schönheit J,Giladi A,David E,Lara-Astiaso D,Lorenzo-Vivas E,Paul F,Chappell-Maor L,Priller J,Leutz A,Amit I,Jung S

更新日期：2017-05-16 00:00:00

abstract：:MicroRNA (miRNA)-deficient helper T cells exhibit abnormal IFN-γ production and decreased proliferation. However, the contributions of individual miRNAs to this phenotype remain poorly understood. We conducted a screen for miRNA function in primary T cells and identified individual miRNAs that rescue the defects assoc...

journal_title：Immunity

authors： Steiner DF,Thomas MF,Hu JK,Yang Z,Babiarz JE,Allen CD,Matloubian M,Blelloch R,Ansel KM

更新日期：2011-08-26 00:00:00

abstract：:We analyzed the participation of a predominant B cell clonotype in the anti-arsonate immune response of mice in which Bcl-2 expression was enforced in B cells. Many of the antibodies expressed by the arsonate-induced memory compartment of these mice were "dual-reactive," displaying increased affinity acquired via V re...

journal_title：Immunity

authors： Hande S,Notidis E,Manser T

更新日期：1998-02-01 00:00:00

abstract：:An efficient Th1-driven adaptive immune response requires activation of the T cell receptor and secretion of the T cell stimulatory cytokine IL-12 by activated antigen-presenting cells. IL-12 triggers Th1 polarization of naive CD4(+) T cells and secretion of IFN-gamma. We describe a new heterodimeric cytokine termed I...

journal_title：Immunity

authors： Pflanz S,Timans JC,Cheung J,Rosales R,Kanzler H,Gilbert J,Hibbert L,Churakova T,Travis M,Vaisberg E,Blumenschein WM,Mattson JD,Wagner JL,To W,Zurawski S,McClanahan TK,Gorman DM,Bazan JF,de Waal Malefyt R,Rennick D,

更新日期：2002-06-01 00:00:00

abstract：:For several days after antigenic stimulation, human cytolytic T lymphocyte (CTL) clones exhibit a decrease in their effector activity and in their binding to human leukocyte antigen (HLA)-peptide tetramers. We observed that, when in this state, CTLs lose the colocalization of the T cell receptor (TCR) and CD8. Effecto...

journal_title：Immunity

authors： Demotte N,Stroobant V,Courtoy PJ,Van Der Smissen P,Colau D,Luescher IF,Hivroz C,Nicaise J,Squifflet JL,Mourad M,Godelaine D,Boon T,van der Bruggen P

更新日期：2008-03-01 00:00:00

abstract：:Cytokine regulation of B cell development was analyzed using interleukin-2 (IL-2)-induced transcription of the J chain gene as a model system. A nuclear target of the IL-2 signal was identified as the Pax5 transcription factor, BSAP, which recognizes a negative regulatory motif in the J chain promoter. Functional assa...

journal_title：Immunity

authors： Rinkenberger JL,Wallin JJ,Johnson KW,Koshland ME

更新日期：1996-10-01 00:00:00

abstract：:Activated CD8(+) T cells can differentiate into transient effector cells or long-lived memory cells. In this issue of Immunity, Joshi et al. (2007) suggest that inflammatory cytokines dictate this balance by regulating the expression of the transcription factor T-bet. ...

journal_title：Immunity

authors： Hamilton SE,Jameson SC

更新日期：2007-08-01 00:00:00