Abstract:
:Inhalation of asbestos may activate the pulmonary endothelium to promote an inflammatory cell phenotype that participates in the development of pulmonary fibrosis. However, little is known about the effects of asbestos on endothelial cell function. Therefore, endothelial cells were exposed to chrysotile and crocidolite asbestos for up to 72 hr to investigate the effects of noncytotoxic concentrations of asbestos on cell function. Noncytolytic concentrations of chrysotile and crocidolite caused localized changes in cell morphology, resulting in activation of endothelial cells to a vacuolated, "spindle-shaped" morphology at sites of fiber deposition. The adherence of neutrophils (PMN) to control and asbestos-treated cultures was examined to determine the functional significance of this altered morphology. Chrysotile asbestos caused a time-dependent, 2- to 4-fold increase in PMN adherence that was localized to spindled endothelial cells in close contact with fibers. Monoclonal antibodies against intercellular adhesion molecule-1 (ICAM-1) inhibited this asbestos-induced PMN adherence. Solution hybridization demonstrated a 2.5-fold increase in steady-state levels of ICAM-1 mRNA in cells exposed to chrysotile asbestos for 8 hr. Exposure to crocidolite asbestos resulted in similar alteration in cell morphology and increase in PMN binding to endothelial cells, while a physically similar nonasbestos fiber, refractory ceramic fiber-1 did not cause morphologic change or increased PMN binding. These data suggest that asbestos fibers can specifically and directly activate endothelial cells, resulting in an activated cell morphology, increased ICAM-1 expression, and enhanced PMN adherence.
journal_name
Toxicol Appl Pharmacoljournal_title
Toxicology and applied pharmacologyauthors
Treadwell MD,Mossman BT,Barchowsky Adoi
10.1006/taap.1996.0143subject
Has Abstractpub_date
1996-07-01 00:00:00pages
62-70issue
1eissn
0041-008Xissn
1096-0333pii
S0041-008X(96)90143-Xjournal_volume
139pub_type
杂志文章abstract::Increased incidence of mortality and morbidity due to cardiopulmonary complications has been found to associate with elevated levels of particulate air pollution (particulate matter with an aerodynamic diameter < 10 microm, PM10 and <2.5 microm, PM2. 5). Lung injury and an imbalance of inflammatory mediators are propo...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1998.8591
更新日期:1999-03-15 00:00:00
abstract::Berberine has been demonstrated to alleviate renal interstitial, liver and myocardial fibrosis when administered orally despite its extremely low bioavailability. Here, we inspected effect of berberine on pulmonary fibrosis (PF) and explored underlying mechanisms on the basis of intestinal endocrine. The results showe...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2018.02.001
更新日期:2018-03-15 00:00:00
abstract:UNLABELLED:In the heart, cardiac fibroblasts (CF) and cardiac myofibroblasts (CMF) are the main cells responsible for wound healing after cardiac insult. Exchange protein activated by cAMP (EPAC) is a downstream effector of cAMP, and it has been not completely studied on CF. Moreover, in CMF, which are the main cells r...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2013.06.022
更新日期:2013-10-15 00:00:00
abstract::The role of metallothionein or metallothionein-like proteins (MT) in genetic resistance to the testicular and hepatic toxicity of cadmium was examined in inbred strains of mice. Mice of two strains resistant (AJ and C3H/HEJ) or susceptible (129J and DBA/2J) to cadmium-induced testicular necrosis were administered sc 3...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(86)90107-9
更新日期:1986-09-15 00:00:00
abstract::Halogenated aromatic hydrocarbons (HAHs) are ubiquitous environment contaminants that produce many of their toxic effects by binding to the aryl hydrocarbon receptor (AhR). However, several investigations have demonstrated that certain polychlorinated biphenyl (PCB) congeners, principally di-ortho-chlorinated PCB cong...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/s0041-008x(02)00040-6
更新日期:2003-02-15 00:00:00
abstract::Methylene chloride (dichloromethane, DCM) is metabolized by two pathways: one dependent on oxidation by mixed function oxidases (MFO) and the other dependent on glutathione S-transferases (GST). A physiologically based pharmacokinetic (PB-PK) model based on knowledge of these pathways was used to describe the metaboli...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(87)90281-x
更新日期:1987-02-01 00:00:00
abstract::The Zrt/Irt-related protein 8 (ZIP8) encoded by slc39a8 is now emerging as an important zinc transporter involved in cellular cadmium incorporation. We have previously shown that mRNA and protein levels of ZIP8 were decreased in cadmium-resistant metallothionein-null (A7) cells, leading to a decrease in cadmium accumu...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2009.08.015
更新日期:2009-12-01 00:00:00
abstract::Disintegrins and disintegrin-like proteins are molecules found in the venom of four snake families (Atractaspididae, Elapidae, Viperidae, and Colubridae). The disintegrins are nonenzymatic proteins that inhibit cell-cell interactions, cell-matrix interactions, and signal transduction, and may have potential in the tre...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2005.07.004
更新日期:2006-04-01 00:00:00
abstract::Erionite, a naturally occurring fibrous zeolite, is associated with the development of nonmalignant and malignant lung diseases and is more carcinogenic than asbestos fibers in man and rodent inhalation models of disease. To investigate the possible molecular mechanisms of erionite-induced toxicity and carcinogenesis ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1998.8450
更新日期:1998-07-01 00:00:00
abstract::Chronic hypertension induces vascular remodeling. The most important factor for hypertension treatment is reducing the risk of cardiovascular disease. OW1 is a novel imperatorin derivative that exhibits vasodilative activity and antihypertensive effects in two-kidney one-clip (2K1C) renovascular hypertensive rats. It ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2015.02.019
更新日期:2015-04-15 00:00:00
abstract:BACKGROUND:Perchloroethylene (perc) induced target organ toxicity has been associated with tissue-specific metabolic pathways. Previous physiologically-based pharmacokinetic (PBPK) modeling of perc accurately predicted oxidative metabolites but suggested the need to better characterize glutathione (GSH) conjugation as ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2018.05.033
更新日期:2018-08-01 00:00:00
abstract::Due to its unique physicochemical and optical properties, C60 has raised interest in commercialization for a variety of products. While several reports have determined this nanomaterial to act as a powerful antioxidant, many other studies have demonstrated a strong oxidative potential through photoactivation. To direc...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2007.12.030
更新日期:2008-05-15 00:00:00
abstract::Epidermal growth factor receptor antibody (EGFRAb) conjugated silica nanorattles (SNs) were synthesized and used to develop receptor mediated endocytosis for targeted drug delivery strategies for cancer therapy. The present study determined that the rate of internalization of silica nanorattles was found to be high in...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2014.01.012
更新日期:2014-03-15 00:00:00
abstract::Carbon disulfide is present in exposed subjects in free and bound or acid-labile forms. Sensitivities of the blood acid-labile CS2 (AL CS2) concentration and the modified iodine-azide test (IAT) were compared as indicators of CS2 exposure. Rats were exposed to 15 (approximately 5 ppm), 30, 60, or 120 mg/m3 of CS2. Exp...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(83)90158-8
更新日期:1983-09-30 00:00:00
abstract::Our previous studies in mice revealed that two weeks short-term toxicity of sodium selenosulfate was significantly lower than that of sodium selenite, but selenium repletion efficacy of both compounds was equivalent. In addition, we showed that sodium selenosulfate reduced nephrotoxicity of cisplatin (CDDP) without co...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2011.11.020
更新日期:2012-02-01 00:00:00
abstract::The glutathione precursor N-acetyl-L-cysteine (NAC) is currently being tested on Parkinson's patients for its neuroprotective properties. Our studies have shown that NAC can elicit protection in glutathione-independent manners in vitro. Thus, the goal of the present study was to establish an animal model of NAC-mediat...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2016.02.010
更新日期:2016-04-01 00:00:00
abstract::B200 cells are Ni(II)-transformed mouse BALB/c-3T3 fibroblasts displaying a malignant phenotype and increased resistance to Ni(II) toxicity. In an attempt to find genes whose expression has been altered by the transformation, the Atlas Mouse Stress/Toxicology cDNA Expression Array (Clontech Laboratories, Inc., Palo Al...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2004.10.006
更新日期:2005-05-15 00:00:00
abstract::The effects of the chemical species and concentration of selenium (Se) in diets on the concentrations of Se in hair, blood serum, red blood cells (RBCs), and urine were studied to gain an insight into the toxicological and nutritional significance of different chemical forms of Se. Male Wistar rats were fed an Se-defi...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1998.8537
更新日期:1998-10-01 00:00:00
abstract::Thymic lymphoma/leukemia is the major cause of death in B6C3F1 mice chronically exposed to 1,3-butadiene (BD). Similar to radiation-induced murine thymic lymphoma, the bone marrow is also a major target organ. Because of the association of murine thymic lymphoma with endogenous type-C murine leukemia retroviruses (MuL...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(86)90352-2
更新日期:1986-09-30 00:00:00
abstract::Aromatase is the only enzyme in vertebrates to catalyze the biosynthesis of estrogens. Although inhibitors of aromatase have been developed for the treatment of estrogen-dependent breast cancer, the whole-body inhibition of aromatase causes severe adverse effects. Thus, tissue-selective aromatase inhibitors are import...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2014.05.008
更新日期:2014-08-15 00:00:00
abstract::Air pollution, especially fine particulate matter (PM2.5, particles <2.5 μm in size), induces adverse health effects on the respiratory system. Uncontrolled proliferation of bronchial epithelial cells, resulting from deregulated cell cycle progression, contributes to pulmonary homeostatic imbalance. Although dysregula...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2019.114616
更新日期:2019-08-15 00:00:00
abstract::The immunotoxic effects of the environmental carcinogen benzo[a]pyrene (BaP) have been evaluated using mouse, but not human, lymphocytes. Since susceptibility to immunomodulation by BaP may be species-related, the effects of BaP on human peripheral blood mononuclear cells (HPBMC) from several individuals were investig...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1993.1057
更新日期:1993-04-01 00:00:00
abstract::Pulmonary exposure to multi-walled carbon nanotubes (MWCNT) causes inflammation, fibroproliferation, immunotoxicity, and systemic responses in rodents. However, the search for representative biomarkers of exposure is an ongoing endeavor. Whole blood gene expression profiling is a promising new approach for the identif...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2020.114898
更新日期:2020-03-01 00:00:00
abstract::The present study investigates the effects of nicotine treatment on exocrine pancreatic function. Adult male, Sprague-Dawley rats received nicotine via a time-release pellet, at a rate of 1.65 micrograms/min for 3 weeks. At the end of the experimental period, it was observed that although nicotine did not affect final...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(88)90255-4
更新日期:1988-10-01 00:00:00
abstract::The aryl hydrocarbon receptor (AhR) and AhR nuclear translocator (ARNT) are transcription factors that express Per-Arnt-Sim (PAS) DNA-binding motifs and mediate the metabolism of drugs and environmental toxins in the liver. Because these transcription factors interact with other PAS genes in molecular feedback loops f...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2008.10.016
更新日期:2009-02-01 00:00:00
abstract::CD-1 mice were treated ip on Day 10 of gestation with 4, 6, or 7 g/kg ethanol. Maternal and embryonic tissues were analyzed for ethanol and acetaldehyde levels by head-space gas chromatography 5 min to 24 hr after treatment. Dose-dependent ethanol concentrations were observed in maternal blood and liver. Ethanol rapid...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(84)90321-1
更新日期:1984-02-01 00:00:00
abstract::This pilot study was designed to assess whether a synthetic matrix metalloproteinase (MMP) inhibitor has anti-inflammatory properties in mild asthma. Tumor necrosis factor alpha (TNFalpha) has been shown to be an important cytokine in the pathogenesis of allergic airway inflammatory responses, and its release can be i...
journal_title:Toxicology and applied pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.taap.2004.10.005
更新日期:2005-06-01 00:00:00
abstract::Reviewing available data shows that most of antipsychotic drugs are associated with arrhythmia and sudden death. Experimental studies have shown a HERG channel blockade, a dose-dependent increase in duration of action potential or of QT interval, with various degrees of indicators of serious arrhythmogenicity. However...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2004.03.016
更新日期:2004-08-15 00:00:00
abstract::This study was designed to evaluate the developmental toxicity of nitrazepam (NZ) in Sprague-Dawley rats and ICR mice and to determine the metabolic factors which modulate susceptibility to the developmental effects of NZ. Rats were treated orally with a single dose of NZ at 300 mg/kg on Day 12 of gestation. Mice rece...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1993.1150
更新日期:1993-08-01 00:00:00
abstract::A quantitative assay based on real-time detection polymerase chain reaction (rtdPCR) was applied to analyze basal and metal-induced mRNA levels of two metallothionein (MT) isoforms (Cd-MT and Cu-MT) in organs of the terrestrial gastropod Helix pomatia. The results show that specific Cd-MT mRNA levels increase with Cd ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/s0041-008x(03)00148-0
更新日期:2003-07-01 00:00:00