Transepithelial migration of neutrophils: mechanisms and implications for acute lung injury.

abstract：:We investigated the effects of hypoxia (< 2.5% O2) on rat manganese superoxide dismutase (MnSOD) gene promoter-luciferase reporter constructs in transiently transfected lung epithelial cells (A549, L2, and E1A-T2) and fibroblasts (R9Ab). We cloned MnSOD promoter-luciferase reporter constructs (numbers refer to length ...

journal_title：American journal of respiratory cell and molecular biology

authors： Ohman T,Parish G,Jackson RM

更新日期：1999-07-01 00:00:00

abstract：:Previous studies by our group as well as others have shown that acute adenosine exposure enhances lung vascular endothelial barrier integrity and protects against increased permeability lung edema. In contrast, there is growing evidence that sustained adenosine exposure has detrimental effects on the lungs, including ...

journal_title：American journal of respiratory cell and molecular biology

authors： Lu Q,Newton J,Hsiao V,Shamirian P,Blackburn MR,Pedroza M

更新日期：2012-11-01 00:00:00

abstract：:Prior studies have demonstrated that human alveolar macrophages (AM) are suppressive of lymphocyte function, through the mechanism of inhibition is unclear. In the current study, human AM inhibited receptor-mediated increases in intracellular calcium concentration ([Ca2+]i) in T cells, natural killer cells, and B cell...

journal_title：American journal of respiratory cell and molecular biology

authors： Yarbrough WC Jr,Wilkes DS,Weissler JC

更新日期：1991-11-01 00:00:00

abstract：:High mobility group box 1 (HMGB1) is an alarmin released from macrophages after infection or inflammation and is a biomarker of lung disease progression in patients with cystic fibrosis. We reported that 2-O, 3-O desulfated heparin (ODSH) inhibits the release of HMGB1 from murine macrophages triggered by neutrophil el...

journal_title：American journal of respiratory cell and molecular biology

authors： Zheng S,Kummarapurugu AB,Afosah DK,Sankaranarayanan NV,Boothello RS,Desai UR,Kennedy T,Voynow JA

更新日期：2017-01-01 00:00:00

abstract：:Lungs are repeatedly exposed to inhaled toxic insults, such as smoke, diesel exhaust, and microbes, which elicit cellular stress responses. The phosphorylation of eukaryotic translation initiation factor 2α by one of four stress-sensing kinases triggers a pathway called the integrated stress response that helps protec...

journal_title：American journal of respiratory cell and molecular biology

authors： van 't Wout EF,Hiemstra PS,Marciniak SJ

更新日期：2014-06-01 00:00:00

abstract：:The biologic activity of substance P has been demonstrated to be limited both in in vivo and in vitro by a membrane-bound protease, neutral endopeptidase (EC 3.4.24.11). The interaction of substance P with its receptor on guinea pig lung tissues was studied in the presence of an inhibitor of neutral endopeptidase unde...

journal_title：American journal of respiratory cell and molecular biology

authors： Coats SR,Gerard NP

更新日期：1989-10-01 00:00:00

abstract：:Pleural infection is common. Evacuation of infected pleural fluid is essential for successful treatment, but it is often difficult because of adhesions/loculations within the effusion and the viscosity of the fluid. Intrapleural delivery of tissue plasminogen activator (tPA) (to break the adhesions) and deoxyribonucle...

journal_title：American journal of respiratory cell and molecular biology

authors： Lansley SM,Cheah HM,Varano Della Vergiliana JF,Chakera A,Lee YC

更新日期：2015-07-01 00:00:00

abstract：:Interleukin-13 (IL-13) is one of the central mediators for development of airway hyperresponsiveness in asthma. However, its effect on bronchial smooth muscle (BSM) is not well known. Recent studies revealed an involvement of RhoA/Rho-kinase in BSM contraction, and this pathway has now been proposed as a new target fo...

journal_title：American journal of respiratory cell and molecular biology

authors： Chiba Y,Nakazawa S,Todoroki M,Shinozaki K,Sakai H,Misawa M

更新日期：2009-02-01 00:00:00

abstract：:Human tracheal gland serous (HTGS) cells are now considered one principal pulmonary target for the gene therapy of cystic fibrosis (CF). We developed a CF tracheal gland serous cell line, CF-KM4, obtained by the transformation of primary cultures of CF tracheal gland serous cells homozygous for the DeltaF508 mutation ...

journal_title：American journal of respiratory cell and molecular biology

authors： Kammouni W,Moreau B,Becq F,Saleh A,Pavirani A,Figarella C,Merten MD

更新日期：1999-04-01 00:00:00

abstract：:Regulatory T cells (Tregs) play an essential role in maintaining the homeostatic balance of immune responses. Asthma is an inflammatory condition of the airways that is driven by dysregulated immune responses toward normally innocuous antigens. Individuals with asthma have fewer and less functional Tregs, which may le...

journal_title：American journal of respiratory cell and molecular biology

authors： Thorburn AN,Hansbro PM

更新日期：2010-11-01 00:00:00

abstract：:Chronic airway infections with Pseudomonas aeruginosa determine morbidity in most individuals with cystic fibrosis (CF). P. aeruginosa may persist for decades in CF lungs, which provides a rare opportunity to study the long-term within-host evolution of a bacterial airway pathogen. In this work, we sought to resolve t...

journal_title：American journal of respiratory cell and molecular biology

authors： Klockgether J,Cramer N,Fischer S,Wiehlmann L,Tümmler B

更新日期：2018-08-01 00:00:00

abstract：:Persistent polyclonal lymphocytosis has been described in a group of female patients who all have the HLA-DR7 antigen in common and who are all heavy cigarette smokers. Immunoglobulin heavy chain gene rearrangement was analyzed by hybridization with specific immunoglobulin heavy chain genes to restriction enzyme-diges...

journal_title：American journal of respiratory cell and molecular biology

authors： Chan MA,Benedict SH,Carstairs KC,Francombe WH,Gelfand EW

更新日期：1990-06-01 00:00:00

abstract：:Endothelin, an endothelium-derived vasoconstrictor peptide, has recently been reported to exist in airway epithelial cells. To elucidate a possible role of endothelin on epithelial functions, we studied the effects of this peptide on ciliary beat frequency (CBF) and electrical properties of canine cultured tracheal ep...

journal_title：American journal of respiratory cell and molecular biology

authors： Tamaoki J,Kanemura T,Sakai N,Isono K,Kobayashi K,Takizawa T

更新日期：1991-05-01 00:00:00

abstract：:Tumor necrosis factor alpha (TNF alpha) is a potentially important cytokine in allergic respiratory reactions since it is released by mast cells and eosinophils, and it can promote mediator and cytokine release, adhesion molecule expression, and granulocyte migration. Therefore, we induced an IgE-mediated response in ...

journal_title：American journal of respiratory cell and molecular biology

authors： Casale TB,Costa JJ,Galli SJ

更新日期：1996-07-01 00:00:00

abstract：:Glucocorticoids increase surfactant phosphatidylcholine synthesis, in part, by stimulating the rate regulatory enzyme CTP:cholinephosphate cytidylyltransferase. This enzyme exists in mammalian lung cytosol as an active lipoprotein form (H-form) and an inactive apoprotein (L-form) species. We administered betamethasone...

journal_title：American journal of respiratory cell and molecular biology

authors： Mallampalli RK,Walter ME,Peterson MW,Hunninghake GW

更新日期：1994-01-01 00:00:00

abstract：:Pleural organization may occur after empyema or complicated parapneumonic effusion and can result in restrictive lung disease with pleural fibrosis (PF). Pleural mesothelial cells; PMCs, may contribute to PF through acquisition of a profibrotic phenotype; meso-mesenchymal transition (MesoMT), which is characterized by...

journal_title：American journal of respiratory cell and molecular biology

authors： Qin W,Jeffers A,Owens S,Chauhan P,Komatsu S,Qian G,Guo X,Ikebe M,Idell S,Tucker TA

更新日期：2021-01-29 00:00:00

abstract：:PS-341 is a highly selective and potent proteasome inhibitor that is cytotoxic to various types of cancer. However, no objective response was seen in a clinical trial with PS-341 as a single agent in non-small cell lung cancer. Its antitumor activity is limited by the simultaneously activated antiapoptosis pathway. Re...

journal_title：American journal of respiratory cell and molecular biology

authors： Lee KH,Jang AH,Yoo CG

更新日期：2015-09-01 00:00:00

abstract：:Hydrogen sulfide (H2S), a novel signaling gasotransmitter in the respiratory system, may have antiinflammatory properties in the lung. We examined the preventive and therapeutic effects of H2S on ozone-induced features of lung inflammation and emphysema. C57/BL6 mice were exposed to ozone or filtered air over 6 weeks....

journal_title：American journal of respiratory cell and molecular biology

authors： Li F,Zhang P,Zhang M,Liang L,Sun X,Li M,Tang Y,Bao A,Gong J,Zhang J,Adcock I,Chung KF,Zhou X

更新日期：2016-07-01 00:00:00

abstract：:The development of multiple organ failure in patients with hemorrhagic shock is significantly influenced by patient age. Adenosine monophosphate-activated protein kinase (AMPK) is a crucial regulator of energy homeostasis, which coordinates metabolic repair during cellular stress. We investigated whether AMPK-regulate...

journal_title：American journal of respiratory cell and molecular biology

authors： Klingbeil LR,Kim P,Piraino G,O'Connor M,Hake PW,Wolfe V,Zingarelli B

更新日期：2017-05-01 00:00:00

abstract：:Unresolved inflammation in the lung is thought to elicit loss of endothelial cell (EC) barrier integrity and impaired lung function. We have shown, in a mouse model of shock/sepsis, that neutrophil interactions with resident pulmonary cells appear central to the pathogenesis of indirect acute lung injury (iALI). Norma...

journal_title：American journal of respiratory cell and molecular biology

authors： Lomas-Neira J,Venet F,Chung CS,Thakkar R,Heffernan D,Ayala A

更新日期：2014-01-01 00:00:00

abstract：:The mechanisms used by alveolar type I pneumocytes for maintenance of the lipid homeostasis necessary to sustain these large squamous cells are unknown. The processes may involve the ATP-binding cassette transporter A1 (ABCA1), a transport protein shown to be crucial in apolipoprotein A-I (apoA-I)-mediated mobilizatio...

journal_title：American journal of respiratory cell and molecular biology

authors： Bates SR,Tao JQ,Yu KJ,Borok Z,Crandall ED,Collins HL,Rothblat GH

更新日期：2008-03-01 00:00:00

abstract：:It has long been speculated that neutrophils deploy proteases to digest subendothelial matrix as they migrate from the bloodstream. Direct evidence for the involvement of proteases in neutrophil transendothelial migration is, however, lacking. To address this issue we used transmission electron microscopy to verify th...

journal_title：American journal of respiratory cell and molecular biology

authors： Mackarel AJ,Cottell DC,Russell KJ,FitzGerald MX,O'Connor CM

更新日期：1999-06-01 00:00:00

abstract：:Pulmonary arterial hypertension (PAH) is a devastating disease without effective treatment. Despite decades of research and the development of novel treatments, PAH remains a fatal disease, suggesting an urgent need for better understanding of the pathogenesis of PAH. Recent studies suggest that microRNAs (miRNAs) are...

journal_title：American journal of respiratory cell and molecular biology

authors： Zhou G,Chen T,Raj JU

更新日期：2015-02-01 00:00:00

abstract：:Chronic pulmonary inflammation in patients affected by cystic fibrosis (CF) is characterized by massive bronchial infiltrates of neutrophils, which is sustained by the interaction of pathogens (e.g., Pseudomonas aeruginosa) with surface bronchial cells. To explore new treatment options focused on the reduction of neut...

journal_title：American journal of respiratory cell and molecular biology

authors： Bezzerri V,Borgatti M,Nicolis E,Lampronti I,Dechecchi MC,Mancini I,Rizzotti P,Gambari R,Cabrini G

更新日期：2008-07-01 00:00:00

abstract：:Mechanical ventilation with high tidal volumes has been associated with pulmonary alveolar flooding. Understanding the mechanisms underlying cyclic stretch-induced increases in alveolar epithelial permeability may be important in designing preventive measures for acute lung injury. In this work, we assessed whether cy...

journal_title：American journal of respiratory cell and molecular biology

authors： Davidovich N,DiPaolo BC,Lawrence GG,Chhour P,Yehya N,Margulies SS

更新日期：2013-07-01 00:00:00

abstract：:The present study utilized the monocrotaline (MCT) model of pulmonary hypertension in rats to examine temporal alterations in steady-state levels of basement membrane (BM) component mRNA and deposition of protein using Northern analysis and immunohistochemistry, respectively. MCT (60 mg/kg, subcutaneous) produced sust...

journal_title：American journal of respiratory cell and molecular biology

authors： Lipke DW,Arcot SS,Gillespie MN,Olson JW

更新日期：1993-10-01 00:00:00

abstract：:Infections with bacteria and viruses such as adenovirus are a feature of chronic lung diseases such as chronic obstructive pulmonary diseases (COPD), and may be instrumental in the generation of disease exacerbations. We have previously shown in acute models that elafin (a lung natural chemotactic molecule for macroph...

journal_title：American journal of respiratory cell and molecular biology

authors： Roghanian A,Williams SE,Sheldrake TA,Brown TI,Oberheim K,Xing Z,Howie SE,Sallenave JM

更新日期：2006-05-01 00:00:00

abstract：:Patients with severe acute and chronic lung diseases develop derangements in gas exchange that may result in increased levels of CO(2) (hypercapnia), the effects of which on human health are incompletely understood. It has been proposed that hypercapnia may have beneficial effects in patients with acute lung injury, a...

journal_title：American journal of respiratory cell and molecular biology

authors： Vadász I,Hubmayr RD,Nin N,Sporn PH,Sznajder JI

更新日期：2012-04-01 00:00:00

abstract：:Severe deterioration of surfactant function is noted under conditions of plasma protein leakage into the alveolar space; moreover, fibrinogen has previously been reported to possess strong surfactant inhibitory capacity. Dissolution of alveolar deposits of fibrinogen and fibrin (e.g., hyaline membranes) requires enzym...

journal_title：American journal of respiratory cell and molecular biology

authors： Seeger W,Grube C,Günther A

更新日期：1993-09-01 00:00:00

abstract：:Hydrogen sulfide (H(2)S) is synthesized intracellularly by the enzymes cystathionine-γ-lyase and cystathionine-β-synthase (CBS), and is proposed to be a gasotransmitter with effects in modulating inflammation and cellular proliferation. We determined a role of H(2)S in airway smooth muscle (ASM) function. ASM were rem...

journal_title：American journal of respiratory cell and molecular biology

authors： Perry MM,Hui CK,Whiteman M,Wood ME,Adcock I,Kirkham P,Michaeloudes C,Chung KF

更新日期：2011-10-01 00:00:00