Activation of murine macrophages by silica particles in vitro is a process independent of silica-induced cell death.

abstract：:Chronic obstructive pulmonary disease (COPD) has been associated with heterozygosity for the Z and S alleles of the alpha1-antitrypsin gene in some studies, but these observations have not been confirmed by others. Cigarette smoking is the major risk factor for COPD and may have been a confounding factor in many of th...

journal_title：American journal of respiratory cell and molecular biology

authors： Sandford AJ,Weir TD,Spinelli JJ,Paré PD

更新日期：1999-02-01 00:00:00

abstract：:The mammalian alveolar epithelium is composed of alveolar type I (AT1) and alveolar type II (AT2) cells that together coordinate tissue function. We used a heterocellular culture model of AT1 and AT2 cells to determine pathways for intercellular signaling between these two phenotypes. Gap junction protein (connexin) p...

journal_title：American journal of respiratory cell and molecular biology

authors： Isakson BE,Seedorf GJ,Lubman RL,Evans WH,Boitano S

更新日期：2003-11-01 00:00:00

abstract：:Over one-third of lung recipients have preexisting antibodies against lung-restricted antigens: collagen (Col) type V and K-α1 tubulin (KAT). Although clinical studies have shown association of these antibodies with primary graft dysfunction (PGD), their biological significance remains unclear. We tested whether preex...

journal_title：American journal of respiratory cell and molecular biology

authors： Bharat A,Chiu S,Zheng Z,Sun H,Yeldandi A,DeCamp MM,Perlman H,Budinger GR,Mohanakumar T

更新日期：2016-10-01 00:00:00

abstract：:Cigarette smoke (CS) is the main causative factor of chronic obstructive pulmonary disease (COPD). Current research supports the concept that airway inflammation is central to the development and progression of the disease. Studies have demonstrated that neutrophils are increased in COPD lungs and that neutrophil-asso...

journal_title：American journal of respiratory cell and molecular biology

authors： Cardini S,Dalli J,Fineschi S,Perretti M,Lungarella G,Lucattelli M

更新日期：2012-09-01 00:00:00

abstract：:New approaches for improving tuberculosis (TB) control using adjunct host-directed cellular and repurposed drug therapies are needed. Autophagy plays a crucial role in the response to TB, and a variety of autophagy-inducing drugs that are currently available for various medical conditions may serve as an adjunct treat...

journal_title：American journal of respiratory cell and molecular biology

authors： Juárez E,Carranza C,Sánchez G,González M,Chávez J,Sarabia C,Torres M,Sada E

更新日期：2016-12-01 00:00:00

abstract：:Airway infections or irritant exposures during early postnatal periods may contribute to the onset of childhood asthma. The purpose of this study was to examine critical periods of postnatal airway development during which ozone (O(3)) exposure leads to heightened neural responses. Rats were exposed to O(3) (2 ppm) or...

journal_title：American journal of respiratory cell and molecular biology

authors： Hunter DD,Wu Z,Dey RD

更新日期：2010-12-01 00:00:00

abstract：:Cyclic adenosine monophosphate (cAMP) was the original "second messenger" to be discovered. Its formation is promoted by adenylyl cyclase activation after ligation of G protein-coupled receptors by ligands including hormones, autocoids, prostaglandins, and pharmacologic agents. Increases in intracellular cAMP generall...

journal_title：American journal of respiratory cell and molecular biology

authors： Serezani CH,Ballinger MN,Aronoff DM,Peters-Golden M

更新日期：2008-08-01 00:00:00

abstract：:Important characteristics of chronic obstructive pulmonary disease (COPD) include airway and vascular remodeling, the molecular mechanisms of which are poorly understood. We assessed the role of fibroblast growth factors (FGF) in pulmonary vascular remodeling by examining the expression pattern of FGF-1, FGF-2, and th...

journal_title：American journal of respiratory cell and molecular biology

authors： Kranenburg AR,De Boer WI,Van Krieken JH,Mooi WJ,Walters JE,Saxena PR,Sterk PJ,Sharma HS

更新日期：2002-11-01 00:00:00

abstract：:β(2)-Adrenoceptor (β2AR) agonists are the most effective class of bronchodilators and a mainstay of asthma management. The first potent β2AR agonist discovered and widely used in reversing the airway constriction associated with asthma exacerbation was the endogenous activator of the β2AR, epinephrine. In this study, ...

journal_title：American journal of respiratory cell and molecular biology

authors： Thanawala VJ,Forkuo GS,Al-Sawalha N,Azzegagh Z,Nguyen LP,Eriksen JL,Tuvim MJ,Lowder TW,Dickey BF,Knoll BJ,Walker JK,Bond RA

更新日期：2013-02-01 00:00:00

abstract：:Acute lung injury (ALI) is characterized by pulmonary inflammation and edema. Innate immune cells (e.g., neutrophils and macrophages) are major contributors to inflammation in ALI. Less is known regarding the role of T cells. We examined the effects of rapamycin on inflammation in a LPS-induced murine model of ALI. Ra...

journal_title：American journal of respiratory cell and molecular biology

authors： Nakajima T,Lin KW,Li J,McGee HS,Kwan JM,Perkins DL,Finn PW

更新日期：2014-08-01 00:00:00

abstract：:In the current study, we describe cytokine and Escherichia coli lipopolysaccharide (LPS) induction of nitric oxide (NO) synthase mRNA levels in cultured smooth muscle from rat pulmonary artery (RPASM). Exposure of RPASM to interleukin-1 beta, interferon-gamma, or LPS alone did not significantly affect NO synthesis, as...

journal_title：American journal of respiratory cell and molecular biology

authors： Nakayama DK,Geller DA,Lowenstein CJ,Chern HD,Davies P,Pitt BR,Simmons RL,Billiar TR

更新日期：1992-11-01 00:00:00

abstract：:Lipoxins (LX) are proresolving mediators that augment host defense against bacterial infection. Here, we investigated roles for LX in lung clearance of the fungal pathogen Cryptococcus neoformans (Cne). After intranasal inoculation of 5,000 CFU Cne, C57BL/6 and C.B-17 mice exhibited strain-dependent differences in Cne...

journal_title：American journal of respiratory cell and molecular biology

authors： Colby JK,Gott KM,Wilder JA,Levy BD

更新日期：2016-01-01 00:00:00

abstract：:Single-cell RNA sequencing (scRNASeq) has advanced our understanding of lung biology, but its utility is limited by the need for fresh samples, loss of cell types by death or inadequate dissociation, and transcriptional stress responses induced during tissue digestion. Single-nucleus RNA sequencing (snRNASeq) has addr...

journal_title：American journal of respiratory cell and molecular biology

authors： Koenitzer JR,Wu H,Atkinson JJ,Brody SL,Humphreys BD

更新日期：2020-12-01 00:00:00

abstract：:We previously described a reduction of silica-induced lung fibrosis in interleukin-10-deficient mice (IL-10-/-) (Huaux and colleagues; Am. J. Respir. Cell Mol. Biol. 1998;18:51-59). In the present study, we further dissect the exact functions of IL-10 in experimental silicosis. The reduced lung fibrotic response to si...

journal_title：American journal of respiratory cell and molecular biology

authors： Barbarin V,Arras M,Misson P,Delos M,McGarry B,Phan SH,Lison D,Huaux F

更新日期：2004-07-01 00:00:00

abstract：:Clara-cell populations show a high degree of variation in susceptibility to injury by bioactivated cytotoxicants. Because glutathione (GSH) is critical for detoxification of electrophilic metabolites, heterogeneity in Clara cell GSH levels may lead to a wide range of cytotoxic responses. This study was designed to def...

journal_title：American journal of respiratory cell and molecular biology

authors： West JA,Chichester CH,Buckpitt AR,Tyler NK,Brennan P,Helton C,Plopper CG

更新日期：2000-07-01 00:00:00

abstract：:Pure nicotine impairs macrophage killing of Mycobacterium tuberculosis (MTB), but it is not known whether the nicotine component in cigarette smoke (CS) plays a role. Moreover, the mechanisms by which nicotine impairs macrophage immunity against MTB have not been explored. To neutralize the effects of nicotine in CS e...

journal_title：American journal of respiratory cell and molecular biology

authors： Bai X,Stitzel JA,Bai A,Zambrano CA,Phillips M,Marrack P,Chan ED

更新日期：2017-09-01 00:00:00

abstract：:Recently, we described the isolation through fluorescent-activated cell sorting (FACS) of low autofluorescent (LAF) cells from human bronchoalveolar lavage (BAL). These LAF cells displayed an immunophenotype comparable with that of dendritic cells (DC), and showed a high potency to stimulate naive T cells. In the stud...

journal_title：American journal of respiratory cell and molecular biology

authors： van Haarst JM,Verhoeven GT,de Wit HJ,Hoogsteden HC,Debets R,Drexhage HA

更新日期：1996-12-01 00:00:00

abstract：:Glucose moves into airway secretions after a glucose load. Therefore people with diabetes or hyperglycemia spend a significant proportion of each day with glucose in their airways secretions. This study investigated the effects of glucose on isolated human airways and on cultured airway smooth muscle (ASM) cells. Huma...

journal_title：American journal of respiratory cell and molecular biology

authors： Cazzola M,Calzetta L,Rogliani P,Lauro D,Novelli L,Page CP,Kanabar V,Matera MG

更新日期：2012-10-01 00:00:00

abstract：:Endothelin-1 is a potent bronchoconstrictor peptide with pro-inflammatory and growth-promoting properties. After exposure of sensitized Brown-Norway rats to six repeated ovalbumin exposures, there was an increase in pro-endothelin (ET)-1 messenger RNA compared with saline-exposed control rats 24 h after the final expo...

journal_title：American journal of respiratory cell and molecular biology

authors： Salmon M,Liu YC,Mak JC,Rousell J,Huang TJ,Hisada T,Nicklin PL,Chung KF

更新日期：2000-11-01 00:00:00

abstract：:The investigation of novel targets for the treatment of cystic fibrosis (CF) lung inflammation is a major priority, considering that no effective therapy is available for this purpose. Consistent with the evidence that the sphingolipid (SL) ceramide regulates airway inflammation and infection in mice and patients with...

journal_title：American journal of respiratory cell and molecular biology

authors： Dechecchi MC,Nicolis E,Mazzi P,Cioffi F,Bezzerri V,Lampronti I,Huang S,Wiszniewski L,Gambari R,Scupoli MT,Berton G,Cabrini G

更新日期：2011-10-01 00:00:00

abstract：:The doxycycline-inducible, gene regulatory system allows tight control of transgene expression for the study of organ development and disease pathogenesis. Multiple recent reports have employed this model to investigate various lung diseases including emphysema. For our study, we used this transgenic system to test wh...

journal_title：American journal of respiratory cell and molecular biology

authors： Sisson TH,Hansen JM,Shah M,Hanson KE,Du M,Ling T,Simon RH,Christensen PJ

更新日期：2006-05-01 00:00:00

abstract：:The acceleration of chronic obstructive pulmonary disease (COPD) by cigarette smoke (CS) in individuals with severe genetic deficiency of α(1)-antitrypsin (Z-AT [Glu342Lys]) exemplifies the critical importance of gene-environmental interactions to the development of COPD. We investigated the molecular basis for the in...

journal_title：American journal of respiratory cell and molecular biology

authors： Alam S,Li Z,Janciauskiene S,Mahadeva R

更新日期：2011-08-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF-alpha) is an important inflammatory mediator produced by activated monocytes and macrophages. We have previously shown that porcine alveolar macrophages (PAM) mediate bystander cytotoxicity through hydrogen peroxide production following activation with immobilized IgG immune complex (I...

journal_title：American journal of respiratory cell and molecular biology

authors： Kim JW,Wierda WG,Kim YB

更新日期：1991-09-01 00:00:00

abstract：:Peroxisome proliferator-activated receptor (PPAR) γ is critical for alveolar macrophage (AM) function. Chronic alcohol abuse causes AM phagocytic dysfunction and susceptibility to respiratory infections by stimulating nicotinamide adenine dinucleotide oxidases (Nox), transforming growth factor-β1, and oxidative stress...

journal_title：American journal of respiratory cell and molecular biology

authors： Yeligar SM,Mehta AJ,Harris FL,Brown LA,Hart CM

更新日期：2016-07-01 00:00:00

abstract：:Protein kinase C (PKC) is known to regulate ryanodine receptor (RyR)-mediated local Ca(2+) signaling (Ca(2+) spark) in airway and vascular smooth muscle cells (SMCs), but its specific molecular mechanisms and functions still remain elusive. In this study, we reveal that, in airway SMCs, specific PKCepsilon peptide inh...

journal_title：American journal of respiratory cell and molecular biology

authors： Liu QH,Zheng YM,Korde AS,Li XQ,Ma J,Takeshima H,Wang YX

更新日期：2009-06-01 00:00:00

abstract：:Polymorphonuclear leukocytes (PMN) contribute to epithelial injury at sites of inflammation, but their mechanisms of action are incompletely understood. PMN can injure target tissues by oxidative and nonoxidative mechanisms. Included in the nonoxidative mechanisms are defensins (DEF), small (3.5 to 4.0 kD), arginine- ...

journal_title：American journal of respiratory cell and molecular biology

authors： Nygaard SD,Ganz T,Peterson MW

更新日期：1993-02-01 00:00:00

abstract：:Enhanced protein tyrosine phosphorylation is associated with changes in vascular permeability through formation and dissolution of adherens junctions and regulation of stress fiber formation. Inhibition of the protein tyrosine phosphorylase SH2 domain-containing protein tyrosine phosphatase 2 (SHP2) increases tyrosine...

journal_title：American journal of respiratory cell and molecular biology

authors： Chichger H,Braza J,Duong H,Harrington EO

更新日期：2015-06-01 00:00:00

abstract：:Organisms on our planet have evolved in an oxidizing environment that is intrinsically inimical to life, and cells have been forced to devise means of protecting themselves. One of the defenses used most widely in nature is the enzyme heme oxygenase-1 (HO-1). This enzyme performs the seemingly lackluster function of c...

journal_title：American journal of respiratory cell and molecular biology

authors： Morse D,Choi AM

更新日期：2002-07-01 00:00:00

abstract：:To examine the effects of acid exposure with moderate acidity (pH 3.0-5.0) on bactericidal activity of airway surface liquid (ASL), ASL was collected by washing the surface of primary cultures of human tracheal epithelial cells 24 h after treatment with phosphate-buffered saline (PBS) adjusted to a pH of 3.0, 4.0, or ...

journal_title：American journal of respiratory cell and molecular biology

authors： Nakayama K,Jia YX,Hirai H,Shinkawa M,Yamaya M,Sekizawa K,Sasaki H

更新日期：2002-01-01 00:00:00

abstract：:Hyperplasia of airway smooth muscle cells is present in the airways of asthmatic patients and may contribute to the development of the bronchial hyperresponsiveness that occurs in these patients. Because tryptase is an abundant component of mast cell granules and has demonstrated growth-stimulatory effects in other me...

journal_title：American journal of respiratory cell and molecular biology

authors： Brown JK,Tyler CL,Jones CA,Ruoss SJ,Hartmann T,Caughey GH

更新日期：1995-08-01 00:00:00