Abstract:
:Aberrant expression of key cell cycle regulatory genes is essential for the immortalization and transformation of cells in vitro. We examined 20 mouse lung epithelial cell lines (2 nontumorigenic, 5 nonmetastatic, and 13 metastatic) for mutations or alterations in the expression of key components of the Rb pathway (pRb and p16INK4a) and the p53 pathway (p53 and p19ARF). Seven cell lines had a mutation in exons 5 to 8 of p53. p19ARF was inactivated in the remaining 13 cell lines, primarily by homozygous deletion. Rb expression was present and unaltered in all cell lines, with both phosphorylated and unphosphorylated protein forms detectable. p16INK4a transcripts were undetectable in all cell lines tested except LM1. Loss of p16INK4a expression was a result of homozygous deletion in 11 out of 20 lung cell lines and promoter-exon 1 hypermethylation in 6 out of the remaining 8 cell lines. Other related components that were examined in this study included p21WAF1 and cyclin D1. Compared to normal lung tissue, p21WAF1 expression levels were reduced or undetectable in all cell lines, which did not correlate with loss of p53 function, but did correlate with inactivation of either p53 or p19ARF. Although cyclin D1 expression was variable between cell lines, transcript levels were decreased by at least 50% in the nontumorigenic lines C10 and E10 compared to the tumorigenic cell lines. These results demonstrate mutually exclusive relationships between p53 and p19ARF and between Rb and p16INK4a, but perhaps not between cyclin D1 and p16INK4a, and further describe the nature of involvement of both pathways in mouse lung tumorigenesis.
journal_name
Exp Lung Resjournal_title
Experimental lung researchauthors
McDoniels-Silvers AL,Herzog CR,Tyson FL,Malkinson AM,You Mdoi
10.1080/019021401300054064subject
Has Abstractpub_date
2001-04-01 00:00:00pages
297-318issue
3eissn
0190-2148issn
1521-0499journal_volume
27pub_type
杂志文章abstract::Administering liposome-encapsulated drugs by aerosols could be a feasible way of targeting drugs to the lung, specifically to pulmonary alveolar macrophages (AM). In the mouse model, we characterized uptake of carboxyfluorescein- (CF-) labeled liposomes by AM in vivo after acute inhalation of liposome aerosols, and th...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149309071077
更新日期:1993-01-01 00:00:00
abstract::A specific form of flavin monooxygenase has been identified in the lungs of a number of species. Distribution of the pulmonary flavin-containing monooxygenase (FMOp) is of interest because it oxidatively metabolizes a wide variety of nitrogen-, sulfur-, and phosphorous-containing xenobiotics, some of which form highly...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149209020656
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abstract::Acute lung injury (ALI) is often associated with sepsis and is the most common cause of acute respiratory failure. The authors evaluated the role of the heme oxygenase (HO)/carbon monoxide (CO) system on lung injury in a cecal ligation and puncture (CLP)-induced mouse model of ALI. The authors established CLP-induced ...
journal_title:Experimental lung research
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doi:10.3109/01902148.2012.660559
更新日期:2012-05-01 00:00:00
abstract::Lung disorders such as asthma, acute respiratory distress syndrome (ARDS), chronic obstructive lung disease (COPD), and interstitial lung disease (ILD) show a few common threads of pathogenic mechanisms: inflammation, aberrant immune activity, infection, and fibrosis. Currently no modes of effective treatment are avai...
journal_title:Experimental lung research
pub_type: 杂志文章,评审
doi:10.3109/01902148.2013.816803
更新日期:2013-10-01 00:00:00
abstract::Human and canine airway mucosal explants synthesize and secrete high molecular weight glycoconjugates, incorporating 14C-glucosamine, a radioactive precursor to epithelial glycoprotein. Our examination of secretions produced by several individual specimens, however, did not reveal epithelial glycoprotein of typical bu...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148609058290
更新日期:1986-01-01 00:00:00
abstract:PURPOSE:This study was prospectively designed to investigate the effects of different concentrations of isoflurane (ISO) pretreatment on respiratory mechanics, oxygenation, and hemodynamics in lipopolysaccharide (LPS)-induced acute respiratory distress syndrome (ARDS) model of juvenile piglets. METHODS:Twenty-four pig...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148.2015.1054530
更新日期:2015-01-01 00:00:00
abstract::In a recent study of the sheep tracheal lobe model, we have demonstrated that surface chemistry modification of quartz by aluminum lactate significantly alters the biological activity of quartz for at least 2 months after exposure. In the present study, we have extended our observations of the biological reaction of t...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148709064319
更新日期:1987-01-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149009108845
更新日期:1990-05-01 00:00:00
abstract::Volcanic ash was collected from the Moses Lake region of Washington State after the 18 May 1980 eruption of Mt. St. Helens. The ash was tested in a short-term bioassay system using hamsters exposed by intratracheal instillation. One day after exposure the lungs were lavaged and the fluid collected was characterized us...
journal_title:Experimental lung research
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doi:10.3109/01902148109052324
更新日期:1981-11-01 00:00:00
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journal_title:Experimental lung research
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doi:10.1080/01902140303783
更新日期:2003-06-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148009065460
更新日期:1980-08-01 00:00:00
abstract::Few studies are available about the role of dietary zinc (Zn) in respiratory diseases. Adult male rats were divided into 2 groups and fed respectively a moderate Zn-deficient diet and a Zn-adequate control diet. In lung tissue at 2 months, thiobarbituric acid-reactive species (TBARS), total glutathione, glutathione di...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140303776
更新日期:2003-10-01 00:00:00
abstract::We quantified in vivo pulmonary vascular remodeling in a large animal model of pulmonary hypertension (PH). In group PH (n = 6), 3 mg/kg dehydromonocrotaline (DHMC) was administered to 12-week-old beagles via a right atrial injection. Eight weeks after DHMC in group PH, pulmonary artery pressure increased significantl...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021401459734
更新日期:2001-01-01 00:00:00
abstract::The effects of activated leukocytes on surfactant function and composition were examined to better define the mechanisms by which acute inflammation contributes to respiratory distress syndrome (ARDS). Peripheral blood leukocytes from healthy volunteers were incubated in vitro with surfactant for 4 hours: (1) in the a...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021499270042
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND:This study aimed to develop and evaluate an adaptive control system for volume-controlled ventilation (VCV) in small animals to guarantee accurate delivery of tidal volume (VT) in the presence of changes in lung mechanics. METHODS:The adaptive control system to control the Harvard Inspira ventilator was des...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148.2014.900156
更新日期:2014-04-01 00:00:00
abstract::The expression of platelet-derived growth factor (PDGF), transforming growth factor (TGF)-beta, and connective tissue growth factor (CTGF) and the effect of imatinib, an agent inhibiting PDGF receptors, were assessed in a porcine bronchial transplantation model of obliterative bronchiolitis (OB). Up-regulation of PDGF...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140701539745
更新日期:2007-08-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140902745166
更新日期:2009-06-01 00:00:00
abstract::The influence of gas composition on convective and diffusive gas transport in the lungs was assessed by studying the dispersion of combined particle and argon (Ar) boluses induced by the passage through the lungs filled with three different gas mixtures. Particles, as a "nondiffusing gas," served as a tracer for conve...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149509031767
更新日期:1995-11-01 00:00:00
abstract::Verapamil, a calcium channel blocker has been used with partial success in cases of primary pulmonary hypertension, as well as to reduce hypoxia-induced pulmonary hypertension (PH) in rats. However, its effect on monocrotaline (MCT)-induced PH in rats is not known. We studied the effect of verapamil on MCT-induced PH....
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149009087885
更新日期:1990-11-01 00:00:00
abstract:AIM OF THE STUDY:Interleukin (IL)-10 is an anti-inflammatory cytokine, but its role in cigarette smoke (CS)-induced inflammation and chronic obstructive pulmonary disease (COPD) has not been fully elucidated. The purpose of this study was to investigate the effect of IL-10 deficiency on CS-induced pulmonary inflammatio...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148.2015.1096315
更新日期:2015-01-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章,评审
doi:10.3109/01902149709074023
更新日期:1997-03-01 00:00:00
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journal_title:Experimental lung research
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doi:10.3109/01902148909069608
更新日期:1989-01-01 00:00:00
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journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140490517782
更新日期:2004-12-01 00:00:00
abstract::Long-term, low-dose macrolide therapy has been proven to improve survival in patients with diffuse panbronchiolitis and cystic fibrosis, although the mechanisms by which it does so remain unknown. To elucidate the molecular mechanisms of the anti-inflammatory effects of macrolides, the authors examined the effects of ...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140802093238
更新日期:2008-08-01 00:00:00
abstract::The percentage 24-h lung retention of 4-micrometers monodispersed Teflon particles, aerodynamic diameter about 6 micrometers, was studied twice in 8 healthy nonsmokers. The particles were inhaled at 0.5 liter/sec with maximally deep breaths. Bronchoconstriction was induced by inhalation of a methacholine-bromide aeros...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902148409087917
更新日期:1984-01-01 00:00:00
abstract::Expression of microRNAs (miRNAs) is characteristically altered in cancer, and they may play a role in cancer development and progression. The authors performed microarray and real-time quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) analyses to determine the miRNA expression profile of primary sm...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902140902822312
更新日期:2009-10-01 00:00:00
abstract::To study the pattern of lymphokines in bleomycin-induced lung injury, T cells were isolated from lung interstitial tissue (LIL), peribronchial lymphatic tissue (PBLT), and bronchoalveolar lavage (BAL) fluid of bleomycin-"sensitive" C57Bl/6 and bleomycin-"resistant" BALB/c mice at 3, 6, and 14 days following intratrach...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/019021400750048072
更新日期:2000-10-01 00:00:00
abstract::The developmental regulation of the rabbit surfactant-associated proteins, SP-A, SP-B, and SP-C, was investigated using Northern blot analysis. These proteins comprise approximately 10% by weight of pulmonary surfactant, a lipoprotein secreted by type II cells that reduces surface tension at the air-alveolar interface...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.3109/01902149209031707
更新日期:1992-11-01 00:00:00
abstract:INTRODUCTION:Nintedanib is a multi-tyrosine kinase receptor inhibitor recently approved for treatment of idiopathic pulmonary fibrosis. Although angiogenesis is a key process involved in airway structural changes in patients with bronchial asthma, the effect of nintedanib targeting the angiokinase pathway on airway inf...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902148.2017.1339141
更新日期:2017-01-01 00:00:00
abstract::Alveolar cells were evaluated in BALB/c mice exposed to smoke from 9 cigarettes per day. The mice were sacrificed at 1, 5, and 10 days and examined by lung morphometry and immunohistochemical staining of alveolar macrophages for tumor necrosis factor (TNF)-alpha, matrix metalloproteinase (MMP)-12, and tissue inhibitor...
journal_title:Experimental lung research
pub_type: 杂志文章
doi:10.1080/01902140500324828
更新日期:2005-10-01 00:00:00