Macrophage-elicited osteoclastogenesis in response to Brucella abortus infection requires TLR2/MyD88-dependent TNF-α production.

abstract：:Primitive macrophages emerged in the sinusoidal lumen of the fetal mouse liver at 10 days of gestation before the initiation of hepatic hematopoiesis and matured into fetal macrophages. In the culture of cell suspensions from the fetal liver with LP3-conditioned medium, monocyte colonies were formed, but monocytopoies...

journal_title：Journal of leukocyte biology

authors： Naito M,Takahashi K,Nishikawa S

更新日期：1990-07-01 00:00:00

abstract：:Chemokines play a crucial role in combating microbial infection by recruiting blood neutrophils to infected tissue. In mice, the chemokines Cxcl1/KC and Cxcl2/MIP2 fulfill this role. Cxcl1 and Cxcl2 exist as monomers and dimers, and exert their function by activating the Cxcr2 receptor and binding glycosaminoglycans (...

journal_title：Journal of leukocyte biology

authors： Sawant KV,Sepuru KM,Lowry E,Penaranda B,Frevert CW,Garofalo RP,Rajarathnam K

更新日期：2020-09-02 00:00:00

abstract：:The promoters of the IL-8, MCP-1, and RANTES genes contain binding sites for the redox-responsive transcription factors AP-1 and NF-kappaB, which have been shown to be important for their expression. In this overview, we present evidence from our laboratories that the stimulus-specific regulation of these chemokines b...

journal_title：Journal of leukocyte biology

authors： Roebuck KA,Carpenter LR,Lakshminarayanan V,Page SM,Moy JN,Thomas LL

更新日期：1999-03-01 00:00:00

abstract：:The human cathelicidin LL-37 is a cationic host defense peptide (antimicrobial peptide) expressed primarily by neutrophils and epithelial cells. This peptide, up-regulated under conditions of inflammation, has immunomodulatory and antimicrobial functions. We demonstrate that LL-37 is a potent inhibitor of human neutro...

journal_title：Journal of leukocyte biology

authors： Barlow PG,Li Y,Wilkinson TS,Bowdish DM,Lau YE,Cosseau C,Haslett C,Simpson AJ,Hancock RE,Davidson DJ

更新日期：2006-09-01 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：:Bacterial and viral infections cause high rates of morbidity and mortality in premature newborns. In the setting of viral infection, pDCs play a key role as strong producers of IFN-α upon TLR9 activation. We analyzed pDC frequency, phenotype, morphology, and function in CB of preterm and term newborns in comparison wi...

journal_title：Journal of leukocyte biology

authors： Schüller SS,Sadeghi K,Wisgrill L,Dangl A,Diesner SC,Prusa AR,Klebermasz-Schrehof K,Greber-Platzer S,Neumüller J,Helmer H,Husslein P,Pollak A,Spittler A,Förster-Waldl E

更新日期：2013-05-01 00:00:00

abstract：:The localization of the adhesion protein L-selectin in human neutrophils was determined by subcellular fractionation and immunoelectron microscopy and compared with the localization of Mac-1 (alpha m beta 2) and alkaline phosphatase, the marker for secretory vesicles. L-selectin was found to be localized exclusively o...

journal_title：Journal of leukocyte biology

authors： Borregaard N,Kjeldsen L,Sengeløv H,Diamond MS,Springer TA,Anderson HC,Kishimoto TK,Bainton DF

更新日期：1994-07-01 00:00:00

abstract：:Proteoglycans (PGs) play a dominant role within the bone marrow (BM), but their role in homing of transplanted hematopoietic progenitor cells (HPC) is unknown. In this study, the role of heparan sulfate (HS) PGs on BM endothelium as adhesive structures was investigated. HPC (primary CD34+ cells and cell line KG-1a) we...

journal_title：Journal of leukocyte biology

authors： Netelenbos T,van den Born J,Kessler FL,Zweegman S,Huijgens PC,Drager AM

更新日期：2003-12-01 00:00:00

abstract：:Most staphylococci produce short α-type PSMs and about twice as long β-type PSMs that are potent leukocyte attractants and toxins. PSMs are usually secreted with the N-terminal formyl group but are only weak agonists for the leukocyte FPR1. Instead, the FPR1-related FPR2 senses PSMs efficiently and is crucial for leuk...

journal_title：Journal of leukocyte biology

authors： Kretschmer D,Rautenberg M,Linke D,Peschel A

更新日期：2015-04-01 00:00:00

abstract：:The paradigm for activation of the neutrophil NADPH oxidase with the protein kinase C activator phorbol myristate acetate (PMA) states that the oxidase assembles the plasma membrane and that the metabolites generated are released extracellularly. This paradigm is challenged by the results presented. Most of the PMA-in...

journal_title：Journal of leukocyte biology

authors： Lundqvist H,Follin P,Khalfan L,Dahlgren C

更新日期：1996-02-01 00:00:00

abstract：:In RAW 264.7 cells, PKC-ε regulates FcγR-mediated phagocytosis. BMDM behave similarly; PKC-ε concentrates at phagosomes and internalization are reduced in PKC-ε⁻/⁻ cells. Two questions were asked: what is the role of PKC-ε? and what domains are necessary for PKC-ε concentration? Function was studied using BMDM and fru...

journal_title：Journal of leukocyte biology

authors： Wood TR,Chow RY,Hanes CM,Zhang X,Kashiwagi K,Shirai Y,Trebak M,Loegering DJ,Saito N,Lennartz MR

更新日期：2013-07-01 00:00:00

abstract：:Underlying acquired immunity to the fungus Candida albicans is usually present in adult immunocompetent individuals and is presumed to prevent mucosal colonization progressing to symptomatic infection. Exploration of immunological events leading to Candida resistance or susceptibility has indicated the central role of...

journal_title：Journal of leukocyte biology

authors： Romani L

更新日期：2000-08-01 00:00:00

abstract：:Human neutrophils isolated from the blood were incubated in vitro for 30 min with 25 ng/ml of phorbol 12-myristate 13-acetate (PMA), a protein kinase C activator, to study its effect on the fine structure of granulocytes and on the subcellular distribution of lactoferrin (Lf). Flow cytometry analysis of the human neut...

journal_title：Journal of leukocyte biology

authors： Esaguy N,Aguas AP,Vilanova M,Silva MT

更新日期：1991-11-01 00:00:00

abstract：:Neonatal humans and rodents are susceptible to infection with encapsulated bacteria as a result of an inability to make antibodies to capsular polysaccharides. This is partly a result of decreased production of proinflammatory cytokines by splenic macrophages (MPhi) from neonates. In this study, we show that when stim...

journal_title：Journal of leukocyte biology

authors： Chelvarajan L,Popa D,Liu Y,Getchell TV,Stromberg AJ,Bondada S

更新日期：2007-08-01 00:00:00

abstract：:The agent(s) and mechanism(s) responsible for suppression of neutrophil chemotaxis in association with major thermal injury have not been identified. We have proposed that the reduced random motility characterizing patients' cells may contribute to their generalized chemotactic dysfunction. Here we report that actin p...

journal_title：Journal of leukocyte biology

authors： Hasslen SR,Ahrenholz DH,Solem LD,Nelson RD

更新日期：1992-11-01 00:00:00

abstract：:Inbred strains of mice, notably the susceptible C57BL/6 and the resistant A/J strains of mice, were infected with a strain of Mycobacterium evium. The infection in the visceral organs of mice was then studied, and the effect of colony-stimulating factors, i.e., interleukin-3 (IL-3), granulocyte-macrophage colony-stimu...

journal_title：Journal of leukocyte biology

authors： Denis M

更新日期：1991-09-01 00:00:00

abstract：:We provide new information on how apoptosis regulates the expansion and survival of dendritic cell (DC) elements during in vitro hematopoiesis. Functionally distinct apoptotic schedules were associated with different phases of DC development when multipotent CD34+ progenitor cells were treated with GM-CSF + TNF +/- SC...

journal_title：Journal of leukocyte biology

authors： Santiago-Schwarz F,Borrero M,Tucci J,Palaia T,Carsons SE

更新日期：1997-10-01 00:00:00

abstract：:An increase in intracellular calcium concentration is one of the major initial steps in B cell activation following antigen receptor (BCR) ligation. We show herein that in C57BL/6 murine B lymphocytes and in model cell lines, BCR-mediated calcium ion (Ca(2+)) influx occurs via highly selective Ca(2+) release-activated...

journal_title：Journal of leukocyte biology

authors： Lyubchenko T,Nielsen JP,Miller SM,Liubchenko GA,Holers VM

更新日期：2009-02-01 00:00:00

abstract：:Mast cells are immune sentinels and a driving force in both normal and pathological contexts of inflammation, with a prominent role in allergic hypersensitivities. Crosslinking of FcεRI by allergen-bound IgE Abs leads to mast cell degranulation, resulting in an early-phase response and release of newly synthesized pro...

journal_title：Journal of leukocyte biology

authors： Yousef M,Crozier RWE,Hicks NJ,Watson CJF,Boyd T,Tsiani E,MacNeil AJ

更新日期：2020-05-01 00:00:00

abstract：:Activation of beta2 integrins is necessary for neutrophil adhesion and full activation of neutrophil effector functions. We demonstrated previously that inhibition of protein kinase A (PKA) activity in quiescent neutrophils is sufficient to increase beta2-integrin cell surface expression, affinity, and adhesion. Thus,...

journal_title：Journal of leukocyte biology

authors： Chilcoat CD,Sharief Y,Jones SL

更新日期：2008-04-01 00:00:00

abstract：:Dendritic cells (DC) obtained by culturing myeloid precursors in GM-CSF undergo maturation and induce an efficient T cell response when stimulated with microbial products. DC precursors themselves also recognize microbial products, and it remains unclear how these stimulated DC precursors modulate the immune response....

journal_title：Journal of leukocyte biology

authors： Kwan WH,Boix C,Gougelet N,Fridman WH,Mueller CG

更新日期：2007-07-01 00:00:00

abstract：:Recombinant tissue plasminogen activator (t-PA), the only approved stroke treatment, is used for clot lysis within the occluded brain artery. Unfortunately, matrix metalloproteinase-9 (MMP-9) concentration increases after t-PA treatment and has been related to hemorrhagic transformation after ischemic stroke. Although...

journal_title：Journal of leukocyte biology

authors： Cuadrado E,Ortega L,Hernández-Guillamon M,Penalba A,Fernández-Cadenas I,Rosell A,Montaner J

更新日期：2008-07-01 00:00:00

abstract：:Recruitment of leukocytes from bloodstream to extrahematic sites is tightly regulated by a variety of adhesion molecules that are expressed on the leukocytes and the vessel walls. In this manuscript, we describe the interactions between natural killer (NK) cells and activated, autologous platelets under physiologic fl...

journal_title：Journal of leukocyte biology

authors： Sheikh S,Parhar RS,Bakheet R,Saleh S,Collison K,Al-Mohanna F

更新日期：2004-09-01 00:00:00

abstract：:Subcutaneous injection of recombinant human interleukin-2 (rhuIL-2) at 10(2)-10(4) U/mouse induced delayed (48 h) accumulation of mononuclear leukocytes with diffuse granulocytes, including eosinophils. Subcutaneous local infusion of rhuIL-2 or recombinant murine IL-2 (10(2)-10(4) U/mouse) via implanted Alzet miniosmo...

journal_title：Journal of leukocyte biology

authors： Dunn CJ,Hardee MM,Fidler SF,Shields SK,Chosay JG

更新日期：1996-07-01 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：:SHP-1 is a cytoplasm protein tyrosine phosphatase expressed primarily in hematopoietic cells. In the immune system, SHP-1 plays critical roles in regulation of many receptor-mediated signaling cascades, and SHP-1 deficiency in mice causes spontaneous inflammation and autoimmunity. Here, we report a unique requirement ...

journal_title：Journal of leukocyte biology

authors： Zhou D,Collins CA,Wu P,Brown EJ

更新日期：2010-05-01 00:00:00

abstract：:MicroRNAs are short endogenous noncoding RNAs that play pivotal roles in a diverse range of cellular processes. The miR-181 family is important in T cell development, proliferation, and activation. In this study, we have identified BRK1 as a potential target of miR-181c using a dual selection functional assay and have...

journal_title：Journal of leukocyte biology

authors： Lim SP,Ioannou N,Ramsay AG,Darling D,Gäken J,Mufti GJ

更新日期：2018-05-01 00:00:00

abstract：:Changes in leukocyte subpopulations and function after spaceflight have been observed but the mechanisms underlying these changes are not well defined. This study investigated the effects of short-term spaceflight (8-15 days) on circulating leukocyte subsets, stress hormones, immunoglobulin levels, and neutrophil func...

journal_title：Journal of leukocyte biology

authors： Stowe RP,Sams CF,Mehta SK,Kaur I,Jones ML,Feeback DL,Pierson DL

更新日期：1999-02-01 00:00:00

abstract：:Tumor-associated eosinophilia has been observed in numerous human cancers and several tumor models in animals; however, the details surrounding this eosinophilia remain largely undefined and anecdotal. We used a B16-F10 melanoma cell injection model to demonstrate that eosinophil infiltration of tumors occurred from t...

journal_title：Journal of leukocyte biology

authors： Cormier SA,Taranova AG,Bedient C,Nguyen T,Protheroe C,Pero R,Dimina D,Ochkur SI,O'Neill K,Colbert D,Lombari TR,Constant S,McGarry MP,Lee JJ,Lee NA

更新日期：2006-06-01 00:00:00

abstract：:Aged and protein-malnourished hosts have diminished febrile responses and increased morbidity and mortality from infection that could be due to deficiencies in the production of certain monokines. In this study, the ability of peritoneal macrophages from aged and protein-malnourished rats to produce IL-1 and TNF was e...

journal_title：Journal of leukocyte biology

authors： Bradley SF,Vibhagool A,Kunkel SL,Kauffman CA

更新日期：1989-06-01 00:00:00