Abstract:
BACKGROUND:Although classified as metal oxides, cobalt monoxide (CoO) and lanthanum oxide (La2O3) nanoparticles, as representative transition and rare earth oxides, exhibit distinct material properties that may result in different hazardous potential in the lung. The current study was undertaken to compare the pulmonary effects of aerosolized whole body inhalation of these nanoparticles in mice. RESULTS:Mice were exposed to filtered air (control) and 10 or 30 mg/m(3) of each particle type for 4 days and then examined at 1 h, 1, 7 and 56 days post-exposure. The whole lung burden 1 h after the 4 day inhalation of CoO nanoparticles was 25 % of that for La2O3 nanoparticles. At 56 days post exposure, < 1 % of CoO nanoparticles remained in the lungs; however, 22-50 % of the La2O3 nanoparticles lung burden 1 h post exposure was retained at 56 days post exposure for low and high exposures. Significant accumulation of La2O3 nanoparticles in the tracheobronchial lymph nodes was noted at 56 days post exposure. When exposed to phagolysosomal simulated fluid, La nanoparticles formed urchin-shaped LaPO4 structures, suggesting that retention of this rare earth oxide nanoparticle may be due to complexation of cellular phosphates within lysosomes. CoO nanoparticles caused greater lactate dehydrogenase release in the bronchoalveolar fluid (BALF) compared to La2O3 nanoparticles at 1 day post exposure, while BAL cell differentials indicate that La2O3 nanoparticles generated more inflammatory cell infiltration at all doses and exposure points. Histopathological analysis showed acute inflammatory changes at 1 day after inhalation of either CoO or La2O3 nanoparticles. Only the 30 mg/m(3) La2O3 nanoparticles exposure caused chronic inflammatory changes and minimal fibrosis at day 56 post exposure. This is in agreement with activation of the NRLP3 inflammasome after in vitro exposure of differentiated THP-1 macrophages to La2O3 but not after CoO nanoparticles exposure. CONCLUSION:Taken together, the inhalation studies confirmed the trend of our previous sub-acute aspiration study, which reported that CoO nanoparticles induced more acute pulmonary toxicity, while La2O3 nanoparticles caused chronic inflammatory changes and minimal fibrosis.
journal_name
Part Fibre Toxicoljournal_title
Particle and fibre toxicologyauthors
Sisler JD,Li R,McKinney W,Mercer RR,Ji Z,Xia T,Wang X,Shaffer J,Orandle M,Mihalchik AL,Battelli L,Chen BT,Wolfarth M,Andrew ME,Schwegler-Berry D,Porter DW,Castranova V,Nel A,Qian Ydoi
10.1186/s12989-016-0155-3subject
Has Abstractpub_date
2016-08-15 00:00:00pages
42issue
1issn
1743-8977pii
10.1186/s12989-016-0155-3journal_volume
13pub_type
杂志文章abstract:BACKGROUND:Using engineered nanomaterial-based toners, laser printers generate aerosols with alarming levels of nanoparticles that bear high bioactivity and potential health risks. Yet, the cardiac impacts of printer-emitted particles (PEPs) are unknown. Inhalation of particulate matter (PM) promotes cardiovascular mor...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-019-0335-z
更新日期:2020-01-29 00:00:00
abstract:BACKGROUND:Increasing evidence from toxicological and epidemiological studies indicates that the central nervous system is an important target for ambient air pollutants. We have investigated whether long-term inhalation exposure to diesel engine exhaust (DEE), a dominant contributor to particulate air pollution in urb...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-017-0213-5
更新日期:2017-08-30 00:00:00
abstract:BACKGROUND:Epidemiologic and animal studies have shown that particulate air pollution is associated with increased risk of lung and cardiovascular diseases. Although the exact mechanisms by which particles induce cardiovascular diseases are not known, studies suggest involvement of systemic acute phase responses, inclu...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-6-12
更新日期:2009-04-20 00:00:00
abstract::There are certain concerns regarding the safety for the environment and human health from the use of engineered nanoparticles (ENPs) which leads to unintended exposures, as opposed to the use of ENPs for medical purposes. This review focuses on the unintended human exposure of ENPs. In particular, possible effects in ...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章,评审
doi:10.1186/1743-8977-7-42
更新日期:2010-12-21 00:00:00
abstract:BACKGROUND:Carbon nanotubes (CNT) can interact with the biological environment, which could participate in their associated toxicity. We recently demonstrated that pH is an important player of CNT fate inside macrophages. We wanted to further characterize such process, and therefore designed a study dedicated to deciph...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-016-0175-z
更新日期:2016-11-24 00:00:00
abstract:BACKGROUND:Carbonaceous aerosols emitted from indoor and outdoor biomass burning are major risk factors contributing to the global burden of disease. Wood tar aerosols, namely, tar ball particles, compose a substantial fraction of carbonaceous emissions, especially from biomass smoldering. However, their health-related...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-020-0337-x
更新日期:2020-01-20 00:00:00
abstract::Titanium dioxide (TiO2) nanoparticles (NPs) are manufactured worldwide in large quantities for use in a wide range of applications. TiO2 NPs possess different physicochemical properties compared to their fine particle (FP) analogs, which might alter their bioactivity. Most of the literature cited here has focused on t...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章,评审
doi:10.1186/1743-8977-10-15
更新日期:2013-04-15 00:00:00
abstract:BACKGROUND:Inhaled nanoparticles have been reported in some instances to translocate from the nostril to the olfactory bulb in exposed rats. In close proximity to the olfactory bulb is the olfactory mucosa, within which resides a niche of multipotent cells. Cells isolated from this area may provide a relevant in vitro ...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-10-54
更新日期:2013-10-21 00:00:00
abstract:BACKGROUND:Inhalation of environmental (nano) particles (NP) as well as persistent herpesvirus-infection are potentially associated with chronic lung disease and as both are omnipresent in human society a coincidence of these two factors is highly likely. We hypothesized that NP-exposure of persistently herpesvirus-inf...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-016-0181-1
更新日期:2017-01-10 00:00:00
abstract:BACKGROUND:Inhalation exposure studies of mice were conducted to determine if multi-walled carbon nanotubes (MWCNT) distribute to the tracheobronchial lymphatics, parietal pleura, respiratory musculature and/or extrapulmonary organs. Male C57BL/6 J mice were exposed in a whole-body inhalation system to a 5 mg/m3 MWCNT ...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-10-38
更新日期:2013-08-09 00:00:00
abstract:BACKGROUND:Carbon load in airway macrophages (AM) has been proposed as an internal marker to assess long-term exposure to combustion-derived pollutant particles. However, it is not known how this biomarker is affected by changes in exposure. We studied the clearance kinetics of black carbon (BC) in AM, obtained by sput...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-018-0250-8
更新日期:2018-03-14 00:00:00
abstract:BACKGROUND:Carbon nanotubes and nanofibers (CNT/F) have known toxicity but simultaneous comparative studies of the broad material class, especially those with a larger diameter, with computational analyses linking toxicity to their fundamental material characteristics was lacking. It was unclear if all CNT/F confer sim...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-020-00392-w
更新日期:2020-12-07 00:00:00
abstract:BACKGROUND:Silica nanoparticles (nanoSiO2) are promising systems that can deliver biologically active compounds to tissues such as the heart in a controllable manner. However, cardiac toxicity induced by nanoSiO2 has been recently related to abnormal calcium handling and energetic failure in cardiomyocytes. Moreover, t...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-020-00346-2
更新日期:2020-05-07 00:00:00
abstract:BACKGROUND:Inhalative nanocarriers for local or systemic therapy are promising. Gold nanoparticles (AuNP) have been widely considered as candidate material. Knowledge about their interaction with the lungs is required, foremost their uptake by surface macrophages and epithelial cells. METHODS:Scnn1b-Tg and Wt mice inh...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-10-19
更新日期:2013-05-16 00:00:00
abstract:BACKGROUND:The exact role of primary nanoparticle (NP) size and their degree of agglomeration in aerosols on the determination of pulmonary effects is still poorly understood. Smaller NP are thought to have greater biological reactivity, but their level of agglomeration in an aerosol may also have an impact on pulmonar...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-10-48
更新日期:2013-10-04 00:00:00
abstract:BACKGROUND:Previous studies have shown that inhalation of welding fumes may induce pulmonary and systemic inflammation and organ accumulation of metal, to which spermatogenesis and endocrine function may be sensitive. Also obesity may induce low-grade systemic inflammation. This study aimed to investigate the effects o...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-019-0334-0
更新日期:2020-01-10 00:00:00
abstract::Particle biokinetics is important in hazard identification and characterization of inhaled particles. Such studies intend to convert external to internal exposure or biologically effective dose, and may help to set limits in that way. Here we focus on the biokinetics of inhaled nanometer sized particles in comparison ...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章,评审
doi:10.1186/1743-8977-7-2
更新日期:2010-01-20 00:00:00
abstract:BACKGROUND:Photocopiers emit nanoparticles with complex chemical composition. Short-term exposures to modest nanoparticle concentrations triggered upper airway inflammation and oxidative stress in healthy human volunteers in a recent study. To further understand the toxicological properties of copier-emitted nanopartic...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-10-42
更新日期:2013-08-22 00:00:00
abstract:BACKGROUND:The effects of carbon nanotubes on skin toxicity have not been extensively studied; however, our lab has previously shown that a carboxylated multi-walled carbon nanotube (MWCNT) exacerbates the 2, 4-dinitrofluorobenzene induced contact hypersensitivity response in mice. Here we examine the role of carboxyla...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-018-0285-x
更新日期:2019-01-08 00:00:00
abstract:BACKGROUND:Aluminum oxide-based nanowhiskers (AO nanowhiskers) have been used in manufacturing processes as catalyst supports, flame retardants, adsorbents, or in ceramic, metal and plastic composite materials. They are classified as high aspect ratio nanomaterials. Our aim was to assess in vivo toxicity of inhaled AO ...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-9-22
更新日期:2012-06-19 00:00:00
abstract:INTRODUCTION:Exposure to air pollution is associated with increased cardiovascular morbidity, although the underlying mechanisms are unclear. Vascular dysfunction reduces arterial compliance and increases central arterial pressure and left ventricular after-load. We determined the effect of diesel exhaust exposure on a...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-6-7
更新日期:2009-03-13 00:00:00
abstract:BACKGROUND:Biomass combustion contributes to the production of ambient particulate matter (PM) in rural environments as well as urban settings, but relatively little is known about the health effects of these emissions. The aim of this study was therefore to characterize airway responses in humans exposed to wood smoke...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章,随机对照试验
doi:10.1186/1743-8977-7-21
更新日期:2010-08-20 00:00:00
abstract::This review considers the molecular toxicology of combustion-derived nanoparticles (CDNP) following inhalation exposure. CDNP originate from a number of sources and in this review we consider diesel soot, welding fume, carbon black and coal fly ash. A substantial literature demonstrates that these pose a hazard to the...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-2-10
更新日期:2005-10-21 00:00:00
abstract:BACKGROUND:Exposure to small size particulate matter in urban air is regarded as a risk factor for cardiovascular effects, whereas there is little information about the impact on the cardiovascular system by exposure to pure carbonaceous materials in the nano-size range. C60 fullerenes are nano-sized particles that are...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-6-5
更新日期:2009-02-25 00:00:00
abstract:BACKGROUND:There is a great need for screening tools capable of rapidly assessing nanomaterial toxicity. One impediment to the development of reliable in vitro screening methods is the need for accurate measures of cellular dose. We present here a methodology that enables accurate determination of delivered to cell dos...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-11-20
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Nanomaterials can be contaminated with endotoxin (lipopolysaccharides, LPS) during production or handling. In this study, we searched for a convenient in vitro method to evaluate endotoxin contamination in nanoparticle samples. We assessed the reliability of the commonly used limulus amebocyte lysate (LAL) a...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-9-41
更新日期:2012-11-09 00:00:00
abstract:BACKGROUND:Combustion generated particulate matter is deposited in the respiratory tract and pose a hazard to the lungs through their potential to cause oxidative stress and inflammation. We have previously shown that combustion of fuels and chlorinated hydrocarbons produce semiquinone-type radicals that are stabilized...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-6-11
更新日期:2009-04-17 00:00:00
abstract:BACKGROUND:Nano- or microscale copper oxide particles (CuO NP, CuO MP) are increasingly applied as catalysts or antimicrobial additives. This increases the risk of adverse health effects, since copper ions are cytotoxic under overload conditions. METHODS:The extra- and intracellular bioavailability of CuO NP and CuO M...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-11-10
更新日期:2014-02-13 00:00:00
abstract:BACKGROUND:The complement system is a key component of innate immunity implicated in the neutralization and clearance of invading pathogens. Dextran coated superparamagnetic iron oxide (SPIO) nanoparticle is a promising magnetic resonance imaging (MRI) contrast agent. However, dextran SPIO has been associated with sign...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/s12989-014-0064-2
更新日期:2014-11-26 00:00:00
abstract:BACKGROUND:Particulate air pollution is associated with increased risk of cardiovascular disease and stroke. Although the precise mechanisms underlying this association are still unclear, the induction of systemic inflammation following particle inhalation represents a plausible mechanistic pathway. METHODS:We used ba...
journal_title:Particle and fibre toxicology
pub_type: 杂志文章
doi:10.1186/1743-8977-9-24
更新日期:2012-07-06 00:00:00