abstract：:CD163 is the monocyte/macrophage-specific receptor for haptoglobin-hemoglobin (Hp-Hb) complexes. The cytoplasmic tail of human CD163 exists as a short tail variant and two long tail variants. Reverse transcriptase-polymerase chain reaction analysis indicated that all three CD163 variants are substantially expressed in...

journal_title：Journal of leukocyte biology

authors： Nielsen MJ,Madsen M,Møller HJ,Moestrup SK

更新日期：2006-04-01 00:00:00

abstract：:Concanavalin A (Con A)-induced hepatitis is a model for human T cell-mediated hepatitis. We evaluated the role of L-selectin and intercellular adhesion molecule-1 (ICAM-1) in this model by injecting Con A intravenously in mice lacking L-selectin (L-selectin-/-), ICAM-1 (ICAM-1-/-), or both (L-selectin/ICAM-1-/-). Bloo...

journal_title：Journal of leukocyte biology

authors： Kawasuji A,Hasegawa M,Horikawa M,Fujita T,Matsushita Y,Matsushita T,Fujimoto M,Steeber DA,Tedder TF,Takehara K,Sato S

更新日期：2006-04-01 00:00:00

abstract：:Human immunodeficiency virus (HIV) infection is characterized by viral entry into the central nervous system (CNS), which is mediated, in part, by the transmigration of HIV-infected monocytes into the brain. The elaboration of chemokines and other factors by these infected cells contributes to CNS inflammation and cog...

journal_title：Journal of leukocyte biology

authors： Eugenin EA,Gamss R,Buckner C,Buono D,Klein RS,Schoenbaum EE,Calderon TM,Berman JW

更新日期：2006-03-01 00:00:00

abstract：:A lethal human septic shock model, mouse generalized Shwartzman reaction (GSR), was elicited by two consecutive lippolysaccharide (LPS) injections (24 h apart) in which interferon-gamma (IFN-gamma) induced by interleukin (IL)-12 played a critical role in the priming phase, and tumor necrosis factor (TNF) was an import...

journal_title：Journal of leukocyte biology

authors： Motegi A,Kinoshita M,Sato K,Shinomiya N,Ono S,Nonoyama S,Hiraide H,Seki S

更新日期：2006-03-01 00:00:00

abstract：:Apoptotic loss of CD4+ T cells has been proposed as a mechanism of T cell depletion in human immunodeficiency virus (HIV) infections resulting in immunodeficiency. The Env glycoprotein has been implicated in apoptosis of uninfected bystander cells via gp120 binding to CD4/CXC chemokine receptor 4 as well as the fusion...

journal_title：Journal of leukocyte biology

authors： Garg H,Blumenthal R

更新日期：2006-02-01 00:00:00

abstract：:Microbicidal activity of neutrophils is usually measured by colony-counting techniques after cell lysis in distilled water. While studying the effect of the reduced nicotinamide adenine dinucleotide phosphate-oxidase inhibitor diphenyleneiodonium (DPI) on the staphylocidal activity of neutrophils, we obtained inconsis...

journal_title：Journal of leukocyte biology

authors： Decleva E,Menegazzi R,Busetto S,Patriarca P,Dri P

更新日期：2006-01-01 00:00:00

abstract：:Rac2 is a hematopoietic-specific Rho-GTPase that plays a stimulus-specific role in regulating reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activation and other functional responses in neutrophils. In this study, rac2-/- neutrophils were shown to have significantly decreased NADPH oxidase activit...

journal_title：Journal of leukocyte biology

authors： Kim C,Dinauer MC

更新日期：2006-01-01 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：:Recognition of Gram-positive bacteria by Toll-like receptor 2 (TLR2) induces activation of proinflammatory pathways. In mice, sensitization with the Gram-positive Propionibacterium acnes followed by a challenge with the TLR4 ligand, lipopolysaccharide (LPS), results in fulminant hepatic failure. Here, we investigated ...

journal_title：Journal of leukocyte biology

authors： Romics L Jr,Dolganiuc A,Velayudham A,Kodys K,Mandrekar P,Golenbock D,Kurt-Jones E,Szabo G

更新日期：2005-12-01 00:00:00

abstract：:Recent studies have shown that proinflammatory cytokines damage rodent neural precursor cells (NPCs), a source of self-renewing, multipotent cells that play an important role in the developing as well as adult brain. In this study, the effects of tumor necrosis factor alpha (TNF-alpha) on cytokine and chemokine produc...

journal_title：Journal of leukocyte biology

authors： Sheng WS,Hu S,Ni HT,Rowen TN,Lokensgard JR,Peterson PK

更新日期：2005-12-01 00:00:00

abstract：:Leukocytes are a central cellular element of innate-immune defense in mammals. In addition to the generation of toxic oxygen radicals and nitric oxide, leukocytes express and secrete a broad array of antimicrobial proteins and peptides. In the study, an antimicrobial polypeptide was isolated and purified from human pe...

journal_title：Journal of leukocyte biology

authors： Feng Y,Huang N,Wu Q,Wang B

更新日期：2005-11-01 00:00:00

abstract：:Dendritic cells (DC) are professional antigen-presenting cells that are used in vaccine approaches to cancer. Classically, mature monocyte-derived DC are generated in vitro in the presence of interleukin (IL)-4, granulocyte macrophage-colony stimulating factor, and inflammatory cytokines (G4-DC). Recently, it has been...

journal_title：Journal of leukocyte biology

authors： Breckpot K,Corthals J,Bonehill A,Michiels A,Tuyaerts S,Aerts C,Heirman C,Thielemans K

更新日期：2005-10-01 00:00:00

abstract：:Activation of Kupffer cells is a prominent feature of necro-inflammatory liver injury. We have recently demonstrated that 5-lipoxygenase (5-LO) and its accessory protein, 5-LO-activating protein (FLAP), are essential for the survival of Kupffer cells in culture, as their inhibition drives these liver resident macropha...

journal_title：Journal of leukocyte biology

authors： Titos E,Clària J,Planagumà A,López-Parra M,González-Périz A,Gaya J,Miquel R,Arroyo V,Rodés J

更新日期：2005-10-01 00:00:00

abstract：:The magnitude and efficacy of CD8(+) T cell memory may notably regress, especially if immune induction occurs in the absence of adequate CD4(+) help. This report demonstrates that this CD8(+) memory malfunction could be remedied if a source of cognate antigen-recognizing helper cells were provided during recall. The i...

journal_title：Journal of leukocyte biology

authors： Kumaraguru U,Banerjee K,Rouse BT

更新日期：2005-10-01 00:00:00

abstract：:Postnatal stem cells regulate the homeostasis of the majority of our tissues. They continuously generate new progenitors and mature, functional cells to replace old cells, which cannot assume the tissue function anymore and are eliminated. Blood, skin, gut mucosa, muscle, cartilage, nerves, cornea, retina, liver, and ...

journal_title：Journal of leukocyte biology

authors： Kindler V

更新日期：2005-10-01 00:00:00

abstract：:Multiple mechanisms are used by the human immunodeficiency virus type 1 (HIV-1) to interfere with host-cell immune effector functions. The 27-kD Nef protein has been shown to down-modulate specific genes of the major histocompatibility complex class I (MHC-I) on the surface of infected primary T cells, facilitating th...

journal_title：Journal of leukocyte biology

authors： Brown A,Gartner S,Kawano T,Benoit N,Cheng-Mayer C

更新日期：2005-09-01 00:00:00

abstract：:The IV meeting of the European Mucosal Immunology Group, held October 8-10, 2004, in Lyon, gathered fundamental and clinical research scientists to discuss the most recent updates on basic and clinical aspects of mucosal immunology. The meeting was focused on innate and acquired immune mechanisms underlying handling a...

journal_title：Journal of leukocyte biology

authors： Kaiserlian D,Cerf-Bensussan N,Hosmalin A

更新日期：2005-08-01 00:00:00

abstract：:Toll-like receptor 2 (TLR2) and -4 mediate signals from a great variety of bacterial gut products, giving the host a panel of microbe-recognizing receptors. Under homeostatic conditions, TLRs act as protective receptors of the intestinal epithelium. When homeostasis is disrupted in diseases such as inflammatory bowel ...

journal_title：Journal of leukocyte biology

authors： Gomariz RP,Arranz A,Abad C,Torroba M,Martinez C,Rosignoli F,Garcia-Gómez M,Leceta J,Juarranz Y

更新日期：2005-08-01 00:00:00

abstract：:In a DNA immunization against Herpes simplex virus (HSV), we examined the ability of plasmid-encoded interleukin-15 (pIL-15) to induce and maintain the mucosal B and T cell immune response. pIL-15 generated memory CD8(+) T cell responses that were threefold higher and mainly maintained in the spleen, but high levels o...

journal_title：Journal of leukocyte biology

authors： Toka FN,Rouse BT

更新日期：2005-07-01 00:00:00

abstract：:The mechanisms by which concanavalin A (Con A), a lectin, activates T cells are poorly studied. A low dose of Con A is stimulatory for T cells, whereas a high dose of Con A results in suppression of proliferation and enhanced T cell death. The expression and functional roles of costimulatory receptors, CD28 and cytoto...

journal_title：Journal of leukocyte biology

authors： Mukherjee S,Ahmed A,Nandi D

更新日期：2005-07-01 00:00:00

abstract：:Mucosa represents the main site of pathogen/cell interactions. The two main types of cells forming the epithelial structure [epithelial cells and Langerhans cells (LC)] coordinate the first defense responses to avoid infection. To evaluate the involvement of epithelial cells in the early steps leading to a specific ad...

journal_title：Journal of leukocyte biology

authors： Cremel M,Berlier W,Hamzeh H,Cognasse F,Lawrence P,Genin C,Bernengo JC,Lambert C,Dieu-Nosjean MC,Delézay O

更新日期：2005-07-01 00:00:00

abstract：:We have shown previously that ulcerogenic (type I) strains of Helicobacter pylori (Hp) retard their entry into macrophages. However, the signaling pathways that regulate Hp phagocytosis are largely undefined. We show here that Hp strongly activated class IA phosphoinositide3-kinases (PI3Ks) in macrophages, coincident ...

journal_title：Journal of leukocyte biology

authors： Allen LA,Allgood JA,Han X,Wittine LM

更新日期：2005-07-01 00:00:00

abstract：:The macrophage mannose receptor (MR) appears to play an important role in the binding and phagocytosis of several human pathogens, but its phagocytic property and signaling pathways have been poorly defined. The general strategy to explore such topics is to express the protein of interest in nonphagocytic cells, but i...

journal_title：Journal of leukocyte biology

authors： Le Cabec V,Emorine LJ,Toesca I,Cougoule C,Maridonneau-Parini I

更新日期：2005-06-01 00:00:00

abstract：:Inbred mouse strains have been known for many years to vary in their degree of susceptibility to different types of infectious diseases. The genetic basis of these interstrain differences is sometimes simple but often complex. In a few cases, positional cloning has been used successfully to identify single gene effect...

journal_title：Journal of leukocyte biology

authors： Fortier A,Min-Oo G,Forbes J,Lam-Yuk-Tseung S,Gros P

更新日期：2005-06-01 00:00:00

abstract：:Intact cellular migration is critically important for the induction and regulation of the immune response. The Wiskott-Aldrich syndrome protein (WASP) regulates surface receptor signaling to the actin cytoskeleton in hematopoietic cells and thus plays a pivotal role in cellular locomotion. WASP deficiency causes the W...

journal_title：Journal of leukocyte biology

authors： Snapper SB,Meelu P,Nguyen D,Stockton BM,Bozza P,Alt FW,Rosen FS,von Andrian UH,Klein C

更新日期：2005-06-01 00:00:00

abstract：:Ly-49 receptors regulate mouse natural killer cell functions. Members of the polymorphic Ly-49 multigene family recognize specific alleles of major histocompatibility complex class I (MHC I) or MHC I-like proteins. Previous studies have provided insight into the nature of Ly-49A and -C interaction with their high-affi...

journal_title：Journal of leukocyte biology

authors： Osman MS,Silver ET,Varghese JC,Chang CS,Gong DE,Audette GF,Hazes B,Kane KP

更新日期：2005-05-01 00:00:00

abstract：:Severe injury can initiate an exaggerated systemic inflammatory response and multiple organ failure (MOF) if a subsequent immune stimulus, "second hit", occurs. Using a mouse thermal injury model, we tested whether changes in innate immune cell reactivity following injury can contribute to the development of heightene...

journal_title：Journal of leukocyte biology

authors： Murphy TJ,Paterson HM,Kriynovich S,Zang Y,Kurt-Jones EA,Mannick JA,Lederer JA

更新日期：2005-01-01 00:00:00

abstract：:The persistent infection caused by hepatitis C virus (HCV) is presumably explained by a deficient immune response to the infection, but the basis for the inefficiency of immune-mediated virus eradication is not known in detail. This study addresses mechanisms of relevance to dysfunction of cytotoxic lymphocytes in HCV...

journal_title：Journal of leukocyte biology

authors： Thorén F,Romero A,Lindh M,Dahlgren C,Hellstrand K

更新日期：2004-12-01 00:00:00

abstract：:Although class A type I/II scavenger receptor (SR-A) is involved in numerous macrophage functions, its signaling ability remains uncertain. We used monoclonal antibodies (mAb) to specifically stimulate receptors on mouse alveolar (AMs) and peritoneal macrophages (PMs). Immobilized anti-SR-A (2F8) and anti-FcgammaR II/...

journal_title：Journal of leukocyte biology

authors： Józefowski S,Kobzik L

更新日期：2004-11-01 00:00:00

abstract：:There is vast body of evidence that the insulin-like growth factor (IGF)-I exerts immunomodulatory effects in vitro and in vivo. In vitro studies indicate that stimulatory effects of IGF-I may be exerted through augmentation of inflammatory cytokine production. To further explore the immunomodulatory effects of IGF-I ...

journal_title：Journal of leukocyte biology

authors： Kooijman R,Coppens A

更新日期：2004-10-01 00:00:00

abstract：:T helper cell type 1 (Th1)-polarizing cytokines are induced by Legionella pneumophila infection and are suppressed by pretreatment with marijuana cannabinoids (CB). Glucocorticoids and prostaglandin E2(PGE2) are also reported to suppress Th1 polarization and are induced by Delta9-tetrahydrocannabinol (THC), so their r...

journal_title：Journal of leukocyte biology

authors： Newton CA,Lu T,Nazian SJ,Perkins I,Friedman H,Klein TW

更新日期：2004-10-01 00:00:00

abstract：:Scaffolding molecules bind simultaneously and link together various components of signal-transduction pathways. Grb2-associated binder 2 (Gab2) is a scaffolding protein required for FcgammaR-initiated allergic responses in mast cells and FcgammaR-mediated phagocytosis in macrophages, where it links IgE and IgG recepto...

journal_title：Journal of leukocyte biology

authors： Zompi S,Gu H,Colucci F

更新日期：2004-10-01 00:00:00

abstract：:To test whether reduced immune responsiveness in early life may be related to the immaturity of neonatal antigen-presenting cells, we comparatively assessed the phenotypic and functional characteristics of dendritic epidermal leukocytes (DEL) and epidermal Langerhans cells (LC) in newborn (NB) and adult mice, respecti...

journal_title：Journal of leukocyte biology

authors： Chang-Rodriguez S,Ecker R,Stingl G,Elbe-Bürger A

更新日期：2004-09-01 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：:Immunosuppressive factors, such as vascular endothelial growth factor, transforming growth factor-beta, prostaglandin E2, interleukin (IL)-10, and IL-6, are made frequently by cancer cells. These factors, along with others, can inhibit the development and function of tumor-reactive effector T cells and the clinical re...

journal_title：Journal of leukocyte biology

authors： Spaner DE

更新日期：2004-08-01 00:00:00

abstract：:Interleukin-15 (IL-15) is a cytokine that possesses interesting, potential therapeutic properties. However, based on several parameters including activation of neutrophils, it is also recognized as a proinflammatory cytokine. The mechanisms by which IL-15 activates human neutrophil functions are not fully understood. ...

journal_title：Journal of leukocyte biology

authors： Ratthé C,Girard D

更新日期：2004-07-01 00:00:00

abstract：:Glucocorticoids, such as dexamethasone (Dex), are used clinically in the treatment of various inflammatory diseases. Dex acts by inhibiting the expression of inflammatory mediators, such as tumor necrosis factor alpha (TNF-alpha) and monocyte chemoattractant protein-1 (MCP-1). It is surprising that Dex enhances bacter...

journal_title：Journal of leukocyte biology

authors： Reddy KV,Bhattacharjee G,Schabbauer G,Hollis A,Kempf K,Tencati M,O'Connell M,Guha M,Mackman N

更新日期：2004-07-01 00:00:00

abstract：:Nitric oxide (NO(.-)) contributes to vascular collapse in septic shock and regulates inflammation. Here, we demonstrate in lipopolysaccharide (LPS)-stimulated human THP-1 cells and monocytes that NO(.-) regulates interleukin (IL)-8 and tumor necrosis factor alpha (TNF-alpha) by distinct mechanisms. Dibutyryl-cyclic gu...

journal_title：Journal of leukocyte biology

authors： Ma P,Cui X,Wang S,Zhang J,Nishanian EV,Wang W,Wesley RA,Danner RL

更新日期：2004-07-01 00:00:00

abstract：:Evidence that gamma/delta T cells play a broad, immunoregulatory role has been accumulating steadily. We show here that myeloid cells are disregulated after peritoneal infection with Listeria monocytogenes in mice lacking gamma/delta T cells. Inflammatory populations of neutrophils and monocytes recruited to the site ...

journal_title：Journal of leukocyte biology

authors： Skeen MJ,Freeman MM,Ziegler HK

更新日期：2004-07-01 00:00:00

abstract：:This report focuses on the modulatory role of endogenous H(2)O(2) on lipopolysaccharide (LPS)/interferon-gamma (IFN-gamma)-induced inducible nitric oxide synthase (NOS2) gene expression in rat peritoneal macrophages. Exogenously added H(2)O(2) was initially found to inhibit the synthesis of NOS2, which prompted us to ...

journal_title：Journal of leukocyte biology

authors： Vega A,Chacón P,Monteseirín J,El Bekay R,Alvarez M,Alba G,Conde J,Martín-Nieto J,Bedoya FJ,Pintado E,Sobrino F

更新日期：2004-06-01 00:00:00