CTLA4-CD80/CD86 interactions on primary mouse CD4+ T cells integrate signal-strength information to modulate activation with Concanavalin A.

abstract：:Leucocyte-endothelial cell interactions are important in the inflammatory response. In this study, the effect of peripheral blood mononuclear cell (PBMC) products on endothelial cell (EC) shape was examined and quantified. PBMC were obtained from normal donors by Ficoll-Hypaque separation of heparinized whole blood an...

journal_title：Journal of leukocyte biology

authors： FitzGerald OM,Hess EV,Chance A,Highsmith RF

更新日期：1987-05-01 00:00:00

abstract：:Dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN) has been described as an attachment molecule for human immunodeficiency virus type 1 (HIV-1) with the potential to mediate its transmission. We examined DC-SIGN expression in monocyte-derived macrophages (MDM) and its role in vira...

journal_title：Journal of leukocyte biology

authors： Chehimi J,Luo Q,Azzoni L,Shawver L,Ngoubilly N,June R,Jerandi G,Farabaugh M,Montaner LJ

更新日期：2003-11-01 00:00:00

abstract：:In this study, we demonstrate that freshly adherent bovine monocytes release tumor necrosis factor-alpha (TNF-alpha) in response to stimulation with bacterial lipopolysaccharide (LPS). TNF-alpha was detected using actinomycin D-treated WEHI-164 murine fibrosarcoma cells as targets in an 18 hr cytotoxicity assay. Doses...

journal_title：Journal of leukocyte biology

authors： Adams JL,Czuprynski CJ

更新日期：1990-12-01 00:00:00

abstract：:Application of exogenous Abs targeting cell surface Ags has been widely used as an experimental approach to induce cell depletion or to inhibit receptor functionality. Moreover, Ab therapy is emerging as one of the mainstream strategies for cancer treatment. Previous studies on the mechanisms of Ab-mediated cell deple...

journal_title：Journal of leukocyte biology

authors： Sun D,Sun P,He S,Shi M

更新日期：2020-03-01 00:00:00

abstract：:Epithelial and submucosal mesenchymal (SM) cells from normal human small intestine and colon could be directly infected by several strains of the human immunodeficiency virus (HIV). Macrophage-derived virus strains were more potent than the HTLVIIIB prototype strain. Persistent release of virus over several months imp...

journal_title：Journal of leukocyte biology

authors： Moyer MP,Gendelman HE

更新日期：1991-05-01 00:00:00

abstract：:Neutrophils are indispensable in the innate immune defense against invading microorganisms. Neutrophils contain SVs and several subsets of granules that are essential for their function. Proteins present in neutrophil SVs and granules are synthesized during terminal granulopoiesis in the bone marrow. The heterogeneity...

journal_title：Journal of leukocyte biology

authors： Rørvig S,Østergaard O,Heegaard NH,Borregaard N

更新日期：2013-10-01 00:00:00

abstract：:Polymorphonuclear leukocytes (PMN) play an important role in inflammation, immune responses, and tissue repair by secreting interleukin- 1 beta (IL-1 beta). We investigated the regulation of IL-1 beta gene expression in human PMN treated with granulocyte-macrophage colony-stimulating factor (GM-CSF). GM-CSF induced IL...

journal_title：Journal of leukocyte biology

authors： Fernandez MC,Walters J,Marucha P

更新日期：1996-04-01 00:00:00

abstract：:Chemokines regulate the migration and the maturation of dendritic cells (DC) licensed by microbial constituents. We have recently found that the function of DC, including their ability to activate naïve, allogeneic CD4+ T cells, requires the autocrine/paracrine release of the nuclear protein high mobility group box 1 ...

journal_title：Journal of leukocyte biology

authors： Dumitriu IE,Bianchi ME,Bacci M,Manfredi AA,Rovere-Querini P

更新日期：2007-01-01 00:00:00

abstract：:CD11c, a member of the leukointegrin family, is expressed prominently on tissue macrophages and dendritic cells and binds to complement fragment (iC3b), provisional matrix molecules (fibrinogen), and the Ig superfamily cell adhesion molecule, ICAM-1. CD11c has been proposed to function in phagocytosis, cell migration,...

journal_title：Journal of leukocyte biology

authors： Sadhu C,Ting HJ,Lipsky B,Hensley K,Garcia-Martinez LF,Simon SI,Staunton DE

更新日期：2007-06-01 00:00:00

abstract：:CXCR4 is a key co-receptor required for the infection of T-tropic HIV-1 strain of CD4+ T lymphocytes. The regulation of this chemokine receptor was therefore studied. Th2 polarized cells expressed more CXCR4 than Th1 cells. Among a panel of cytokines and stimulants, a Th2 type cytokine interleukin-4 (IL-4) selectively...

journal_title：Journal of leukocyte biology

authors： Wang J,Harada A,Matsushita S,Matsumi S,Zhang Y,Shioda T,Nagai Y,Matsushima K

更新日期：1998-11-01 00:00:00

abstract：:Neutrophils kill invading pathogens by AMPs, including cathelicidins, ROS, and NETs. The human pathogen Staphylococcus aureus exhibits enhanced resistance to neutrophil AMPs, including the murine cathelicidin CRAMP, in part, as a result of alanylation of teichoic acids by the dlt operon. In this study, we took advanta...

journal_title：Journal of leukocyte biology

authors： Jann NJ,Schmaler M,Kristian SA,Radek KA,Gallo RL,Nizet V,Peschel A,Landmann R

更新日期：2009-11-01 00:00:00

abstract：:Murine reconstitution assays were used to investigate the effects of recombinant human interleukin-7 (rhIL-7) on myeloid and lymphoid precursors and on bone marrow engraftment. Reconstitution with bone marrow from rhIL-7-treated mice results in a 3.4-fold decrease in total colony-forming unit-spleen (CFU-S) activity (...

journal_title：Journal of leukocyte biology

authors： Boerman OC,Gregorio TA,Grzegorzewski KJ,Faltynek CR,Kenny JJ,Wiltrout RH,Komschlies KL

更新日期：1995-08-01 00:00:00

abstract：:Alveolar macrophages from chronic obstructive pulmonary disease patients and cigarette smokers are deficient in their ability to phagocytose apoptotic bronchial epithelial cells (efferocytosis). We hypothesized that the defect is mediated via inhibition of sphingosine kinases and/or their subcellular mislocalization i...

journal_title：Journal of leukocyte biology

authors： Tran HB,Barnawi J,Ween M,Hamon R,Roscioli E,Hodge G,Reynolds PN,Pitson SM,Davies LT,Haberberger R,Hodge S

更新日期：2016-07-01 00:00:00

abstract：:mRNAs encoding inflammatory chemokines that recruit neutrophils frequently exhibit short half-lives that serve to limit their expression under inappropriate conditions but are often prolonged to ensure adequate levels during inflammatory response. Extracellular stimuli that modulate the stability of such mRNAs may be ...

journal_title：Journal of leukocyte biology

authors： Hamilton T,Li X,Novotny M,Pavicic PG Jr,Datta S,Zhao C,Hartupee J,Sun D

更新日期：2012-03-01 00:00:00

abstract：:Ly-6G is a member of the Ly-6 family of GPI-linked proteins, which is expressed on murine neutrophils. Antibodies against Ly-6G cause neutropenia, and fatal reactions also develop if mice are primed with TNF-alpha prior to antibody treatment. We have investigated the mechanisms behind these responses to Ly-6G ligation...

journal_title：Journal of leukocyte biology

authors： Abbitt KB,Cotter MJ,Ridger VC,Crossman DC,Hellewell PG,Norman KE

更新日期：2009-01-01 00:00:00

abstract：:Recent studies have revealed that aloe emodin (AE), a natural compound from the root and rhizome of Rheum palmatum L., exhibits significant pharmacologic activities. However, the pharmacologic relevance of the compound, particularly for cardiovascular disease, remains largely unknown. Here, we hypothesized that AE cou...

journal_title：Journal of leukocyte biology

authors： Zhang Y,Song Z,Huang S,Zhu L,Liu T,Shu H,Wang L,Huang Y,Chen Y

更新日期：2020-12-01 00:00:00

abstract：:Neutrophils are quickly recruited to tissues in response to proinflammatory cues; however, little is known about tissue neutrophil phenotypes in health. We employ a multicolor flow cytometric approach to assess surface markers of activation on neutrophils from the bone marrow, blood, peritoneum, spleen, liver, fat, co...

journal_title：Journal of leukocyte biology

authors： Chadwick JW,Fine N,Khoury W,Tasevski N,Sun CX,Boroumand P,Klip A,Glogauer M

更新日期：2020-11-04 00:00:00

abstract：:On the surface of the macrophage, annexin A2 tetramer (A2t) serves as a docking protein or recognition element for bacterial and viral pathogens. Plasma levels of free A2t have been reported to increase following infection, although the mechanistic significance of this observation is unclear. Although annexin A2 had g...

journal_title：Journal of leukocyte biology

authors： Swisher JF,Khatri U,Feldman GM

更新日期：2007-11-01 00:00:00

abstract：:Discussion on targeting LXR and PPAR agonists as therapeutic alternatives to ustekinumab therapy in LAD-1. ...

journal_title：Journal of leukocyte biology

authors： Cooper KN,Bagaitkar J

更新日期：2020-11-01 00:00:00

abstract：:There is growing evidence that, in addition to their role as initiators of immune responses, dendritic cells (DC) can exhibit tolerogenic properties. Immature DC deficient in cell surface costimulatory/accessory molecules can prolong organ and pancreatic islet allograft survival, whereas in vitro manipulation of DC by...

journal_title：Journal of leukocyte biology

authors： Lu L,Lee WC,Takayama T,Qian S,Gambotto A,Robbins PD,Thomson AW

更新日期：1999-08-01 00:00:00

abstract：:Compared with CD4+25+ regulatory T cells (Tregs), the mechanisms for natural, polyclonal CD8+25+ Treg immune suppression have been significantly less studied. We previously showed that polyclonal T cells can acquire antigen-specific targeting activity through arming with exosomal peptide-MHC (pMHC). In this study, we ...

journal_title：Journal of leukocyte biology

authors： Mu C,Zhang X,Wang L,Xu A,Ahmed KA,Pang X,Chibbar R,Freywald A,Huang J,Zhu Y,Xiang J

更新日期：2017-05-01 00:00:00

abstract：:In the absence of IL-10, colonic inflammation ensues, which is characterized by high levels of IL-17. Here, we demonstrate a direct correlation between ICOS expression and IL-17 production in cIELs. IL-10(-/-) mice had increased numbers of cIELs and greater colon weight. Although the CD69 early activation antigen was ...

journal_title：Journal of leukocyte biology

authors： Schaefer JS,Montufar-Solis D,Vigneswaran N,Klein JR

更新日期：2010-02-01 00:00:00

abstract：:LPS induces dendritic cell (DC) activation, but the precise in vivo mechanism is unclear since DCs express low levels of TLR4. Here, it is shown that DCs can be activated in response to LPS through a bystander mechanism. This result was obtained using chimeric mice reconstituted with LPS-responsive and nonresponsive b...

journal_title：Journal of leukocyte biology

authors： Yadav R,Zammit DJ,Lefrancois L,Vella AT

更新日期：2006-12-01 00:00:00

abstract：:Neutrophils are the most abundant leukocytes in blood. From the circulation, they are quickly mobilized to sites of inflammation and/or infection. At the affected tissues, neutrophils display an impressive array of antimicrobial functions, including degranulation, production of reactive oxygen species (ROS), phagocyto...

journal_title：Journal of leukocyte biology

authors： Rosales C

更新日期：2020-07-01 00:00:00

abstract：:The transcription factor nuclear factor (NF)-kappaB controls the expression of genes involved in inflammation, cell proliferation, apoptosis, and differentiation. Impaired regulation of NF-kappaB has been associated with many diseases; thus, there is significant interest in therapeutic approaches based on modulation o...

journal_title：Journal of leukocyte biology

authors： Diatchenko L,Romanov S,Malinina I,Clarke J,Tchivilev I,Li X,Makarov SS

更新日期：2005-12-01 00:00:00

abstract：:The expression of the inducible isoform of nitric oxide synthase (NOS2, iNOS) is increased in patients undergoing sepsis as well as in animal models in which septic shock is induced by injection of bacterial lipopolysaccharide (LPS). Transforming growth factor-beta1 (TGF-beta1) potently suppresses NO production both i...

journal_title：Journal of leukocyte biology

authors： Vodovotz Y,Kopp JB,Takeguchi H,Shrivastav S,Coffin D,Lucia MS,Mitchell JB,Webber R,Letterio J,Wink D,Roberts AB

更新日期：1998-01-01 00:00:00

abstract：:Antigen-dependent activation of IgE-bound mast cells is critical for immediate hypersensitivity and other allergic disorders. Recent studies have revealed the effects of monomeric IgEs on mast cell survival and activation. Furthermore, IgE molecules exhibit a wide range of heterogeneity in the ability to induce mast c...

journal_title：Journal of leukocyte biology

authors： Kashiwakura J,Xiao W,Kitaura J,Kawakami Y,Maeda-Yamamoto M,Pfeiffer JR,Wilson BS,Blank U,Kawakami T

更新日期：2008-08-01 00:00:00

abstract：:This is largely a history of attempts from approximately 1960 until about 1980-81 to understand the mechanisms by which neutrophils are activated by chemotactic factors to induce chemotaxis and granule secretion. As such, it deals with the growth of our knowledge of neutrophil chemotactic factors and their receptors; ...

journal_title：Journal of leukocyte biology

authors： Becker EL

更新日期：1990-04-01 00:00:00

abstract：:An epithelial cell line, IT-45R1, has been established from a thymus of normal Wistar rat and was found to produce growth factor which stimulated the proliferation of bone marrow cells. This growth factor induced the formation of colonies composed of macrophages, granulocytes, or both, in semi-solid medium and stimula...

journal_title：Journal of leukocyte biology

authors： Nanno M,Takahashi T,Sakata T,Horikawa T,Sako T,Suzuki R,Itoh T,Kumagai K

更新日期：1991-12-01 00:00:00

abstract：:The effects of the carbocyclic nucleoside MDL 201,112 and the purine nucleoside adenosine on the interferon-gamma (IFN-gamma)-induced priming of macrophages (m phi s) for the respiratory burst and major histocompatibility class II (MHC class II) Ia+ antigen expression were compared. Priming of purified, peritoneal m p...

journal_title：Journal of leukocyte biology

authors： Edwards CK 3rd,Watts LM,Parmely MJ,Linnik MD,Long RE,Borcherding DR

更新日期：1994-08-01 00:00:00