Abstract:
:Propanil, 3,4-dichloropropionanilide, a commonly used herbicide, has been shown to induce effects on the mouse immune system. The aim of this study was to assess the immunotoxicity of propanil in occupationally exposed agricultural workers and to characterize its molecular mechanism of action. Seven agricultural workers intermittently exposed to propanil and 7 healthy matched controls entered the study. Data were collected through physical examination, and laboratory investigations addressed at the main serum, cellular, and functional immune parameters. The levels of exposure were assessed by determining the urine concentration of the major propanil metabolite, 3,4-dichloroaniline. The investigation of serum, cellular, and functional immune parameters suggested that propanil exposure results in a modest immunomodulatory effect, characterized by an increase in the plasma level of IgG(1) and in LPS-induced IL-6 release and, by a reduction in PHA-induced IL-10 and IFN release, associated with a reduced IFN/IL-4 ratio. As observed, following in vivo exposure, in vitro treatment of human peripheral blood leukocytes with propanil resulted in a dose-dependent reduction in PHA-induced IFN-gamma and IL-10 production, while LPS-induced TNF-alpha production was not affected indicating a direct effect of propanil on selected immune parameters. We demonstrated that propanil interfering with PHA-induced intracellular calcium increase modulated IL-10 and IFN-gamma transcription and translation, which indicates that propanil acts on early events triggered by PHA. Overall, our results suggest that human exposure to propanil has slight immunomodulatory effects, and point out that the inhibition of the PHA-induced intracellular calcium rise is an important target of propanil. These findings improve our understanding of the mechanism underlying propanil-induced immunotoxicity.
journal_name
Toxicol Appl Pharmacoljournal_title
Toxicology and applied pharmacologyauthors
Corsini E,Codecà I,Mangiaratti S,Birindelli S,Minoia C,Turci R,Viviani B,Facchi A,Vitelli N,Lucchi L,Galli CL,Marinovich M,Colosio Cdoi
10.1016/j.taap.2007.04.017subject
Has Abstractpub_date
2007-07-15 00:00:00pages
202-10issue
2eissn
0041-008Xissn
1096-0333pii
S0041-008X(07)00208-6journal_volume
222pub_type
临床试验,杂志文章abstract::We developed a fusion toxin consisting of the catalytic and translocation domains of diphtheria toxin linked to human granulocyte-macrophage colony-stimulating factor (GM-CSF) (DTGM) for the treatment of patients with acute myeloid leukemia (AML). Our goal in this study was to determine the toxicity and pharmacokineti...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1999.8691
更新日期:1999-07-15 00:00:00
abstract::Recent studies with vinclozolin, a dicarboximide fungicide, demonstrate that perinatal exposure to 100 mg vinclozolin/kg/day from Gestational Day 14 through Postnatal Day 3 inhibits morphological sex differentiation. At 1 year, treated male rats exhibited hypospadias, cleft phallus, suprainguinal ectopic testes, a vag...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1994.1117
更新日期:1994-06-01 00:00:00
abstract::The nephrotoxicity limits the clinical application of cisplatin. Human organic cation transporter 2 (OCT2) and multidrug and toxin extrusion proteins (MATEs) work in concert in the elimination of cationic drugs such as cisplatin from the kidney. We hypothesized that co-administration of ondansetron would have an effec...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2013.08.024
更新日期:2013-11-15 00:00:00
abstract::Amphetamine has been shown previously to increase levels of the inducible 70-kDa heat shock protein (hsp70i) in mouse liver. In the present study, the hepatic concentrations of a variety of hsps in livers of mice pretreated with amphetamine (15 mg/kg, i.p.) were evaluated, and the time course of hsp induction was exam...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1997.8290
更新日期:1997-12-01 00:00:00
abstract::Stress response proteins can play integral roles as modulators of cellular function and can be involved in mechanisms that are important to immune function. Metallothionein (MT), a cysteine-rich stress response protein, has been shown to play numerous roles in the cell: it serves as a reservoir of essential heavy meta...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.2000.8961
更新日期:2000-08-01 00:00:00
abstract::Three phenolic glycosides isolated from the heartwood of Pterocarpus marsupium showed significant free radical and superoxide ion scavenging activity and antioxidant potential that were comparable to, or several folds higher than those of standard antioxidants, trolox and ascorbic acid. The effective concentrations of...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2014.03.011
更新日期:2014-05-15 00:00:00
abstract::Decreased daily sperm production (DSP) and cauda epididymal sperm number (CESN) are some of the most sensitive effects of in utero and lactational 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure. The reduction in CESN cannot be fully accounted for by decreased spermatogenesis. To explain the decrease in CESN it wa...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1996.0207
更新日期:1996-09-01 00:00:00
abstract::To study the effect of cadmium exposure on maternal and fetal zinc metabolism, rats were exposed to 0, 5, 50, or 100 ppm Cd in the drinking water on Days 6 through 20 of pregnancy. In comparison to controls, fetal and maternal weights were slightly reduced in the 50- and 100-ppm groups, but not the 5-ppm group. Multip...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(90)90048-y
更新日期:1990-03-01 00:00:00
abstract::Previous studies in this laboratory have shown that polycyclic aromatic hydrocarbons (PAHs) alter Ca2+ homeostasis and inhibit activation of both B and T lymphocytes obtained from rodents and humans. In the present studies, we demonstrate that alpha-naphthoflavone (ANF), an inhibitor of cytochrome P4501A activity, red...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1997.8113
更新日期:1997-05-01 00:00:00
abstract::Differential induction of hepatic cytochromes P450 by 3,4,5,3',4'-pentachlorobiphenyl (PENCB) has been observed in the rat and the guinea pig: (1) in rat and guinea pig, treatment with the chosen dose levels resulted in significant induction of total, carbon monoxide-discernible cytochrome P450 content; the absorption...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(91)90271-f
更新日期:1991-03-15 00:00:00
abstract::Prior consumption of a diet containing the food antioxidant, butylated hydroxyanisole (BHA), by female mice prevented the development of or minimized the acute liver damage caused by monocrotaline, acetaminophen, or bromobenzene. In contrast, neither the incidence nor the severity of carbon tetrachloride-induced hepat...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(83)90121-7
更新日期:1983-06-15 00:00:00
abstract::Inhibition of intercellular communication, as measured by metabolic cooperation between 6-thioguanine-sensitive and 6-thioguanine-resistant Chinese hamster V79 cells, has been previously shown to be correlated with a large variety of known tumor promoters, including some of the organochlorine pesticides. Since further...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(86)90318-2
更新日期:1986-03-30 00:00:00
abstract::Gold compounds are used clinically in rheumatoid arthritis therapy. Acute renal toxicity is observed in some patients receiving chrysotherapy. The present study addresses morphofunctional and biochemical changes in rat kidneys during the first 8 days following a single ip injection of gold sodium thiomalate (AuTM), on...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(87)90100-1
更新日期:1987-11-01 00:00:00
abstract::The transplacental crossover of 14C-2,4,5,2',4',5'-hexachlorobiphenyl (6-CB) from the maternal circulation to the fetal side of the placenta was examined in intact fetuses and following the in situ perfusion of the guinea pig placenta. Fetal, late pregnant, and nonpregnant female guinea pig lipoprotein profiles and th...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(88)90241-4
更新日期:1988-10-01 00:00:00
abstract::A microtiter hemolytic assay was utilized to determine sodium azide (NaN3) modulation of B6C3F1 and C3H mouse serum complement levels in vivo and in vitro. Functional complement was expressed in CH50 units per milliliter. Experiments were performed to determine the in vitro effect of NaN3 on complement mediated lysis ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(84)90108-x
更新日期:1984-05-01 00:00:00
abstract::Learning and memory deficits are obvious symptoms that develop over time in patients with poorly controlled diabetes. Hyperactivity of the renin-angiotensin system (RAS) is directly associated with β-cell dysfunction and diabetic complications, including cognitive impairment. Here, we investigated the protective and m...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2020.114954
更新日期:2020-05-01 00:00:00
abstract::Human-based in silico models are emerging as important tools to study the effects of integrating inward and outward ion channel currents to predict clinical proarrhythmic risk. The aims of this study were 2-fold: 1) Evaluate the capacity of an in silico model to predict QTc interval prolongation in the in vivo anesthe...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2020.114883
更新日期:2020-03-01 00:00:00
abstract::The chemical risk assessment process plays an essential role in the potential human health risk evaluation. Setting priorities for this purpose is critical for better use of the available human and material resources. It has been generally accepted that all new chemicals require safety evaluation before manufacture an...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章,评审
doi:10.1016/j.taap.2005.04.023
更新日期:2005-09-01 00:00:00
abstract::Administration of thiourea to mature male rats at a dosage of 3.5 mg/kg (ip) produced marked pleural effusion by 2 hr (3-4 ml). Pretreatment with bacterial lipopolysaccharide (endotoxin) significantly reduced this pleural effusion (less than 0.5 ml). Despite this unequivocal effect, there was no corresponding reductio...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(83)90191-6
更新日期:1983-08-01 00:00:00
abstract::Exposure to airborne particulate matter (PM) is associated with increased mortality and morbidity. It has been previously shown that PMs and synthetic particles (PC10 and PC2) that have similar characteristics to PMs induced depolarizing currents and increases in intracellular calcium ([Ca2+]i) in capsaicin- and acid-...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/s0041-008x(03)00259-x
更新日期:2003-10-01 00:00:00
abstract::The effects of oral exposure to 0, 5, and 25 mg/kg body wt vomitoxin (VT) on cytokine mRNA levels in spleen, Peyer's patches (PP), liver, kidney, and small intestine were evaluated in B6C3F1 mice at 2 and 4 hr postexposure using RT-PCR in conjunction with Southern hybridization analysis. The abundance of mRNAs for sev...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.1995.1132
更新日期:1995-07-01 00:00:00
abstract::Previous studies from this laboratory have demonstrated that the addition of methyl groups at the 3 and 4 positions of the 2,5-hexanedione (2,5-HD) molecule results both in more rapid pyrrole formation and in enhanced neurotoxicity. In order to define more clearly the relationship between rates of pyrrole formation an...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/0041-008x(87)90296-1
更新日期:1987-02-01 00:00:00
abstract::Oxidative damage to DNA induced by benzene is an important mechanism of its genotoxicity, which leads to chronic benzene poisoning (CBP). Therefore, genetic variation in DNA repair genes may contribute to susceptibility to CBP in the exposed population. We hypothesized that single nucleotide polymorphisms (SNPs) in hM...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2008.09.008
更新日期:2008-12-15 00:00:00
abstract::Laboratory studies have described the carcinogenicity of fumonisin B1 (FB1) in rodents and epidemiological evidence suggests an association between FB1 (a mycotoxin produced by Fusarium moniliforme) and cancer in humans. This study was designed to reveal in rainbow trout, a species with very low spontaneous tumor inci...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1006/taap.2001.9129
更新日期:2001-04-01 00:00:00
abstract::Previous experiments showed that treatment of mice and rats with thioacetamide (TAA) induced liver cell damage, fibrosis and/or cirrhosis, associated with increased oxidative stress and activation of hepatic stellate cells. Some experiments suggest that CYP2E1 may be involved in the metabolic activation of TAA. Howeve...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2007.11.010
更新日期:2008-05-01 00:00:00
abstract::Cigarette smoke has been shown to cause gastric cancer. Overexpression of cyclooxygenase-2 (COX-2) is a common characteristic in gastric malignancy. The present study aimed to explore the correlation between cigarette smoke and COX-2 in the promotion of tumorigenesis in human gastric cancer cells (AGS). We further stu...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2003.10.009
更新日期:2004-02-15 00:00:00
abstract::Arsenic exposure has been shown to exacerbate atherosclerosis, beginning with activation of the endothelium that lines the vessel wall. Endothelial barrier integrity is maintained by proteins of the adherens junction (AJ) such as vascular endothelial cadherin (VE-cadherin) and beta-catenin and their association with t...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2006.12.035
更新日期:2007-04-15 00:00:00
abstract::Chlorhexidine (CHX), widely used as antiseptic and therapeutic agent in medicine and dentistry, has a toxic effect both in vivo and in vitro. The intrinsic mechanism underlying CHX-induced cytotoxicity in eukaryotic cells is, however, still unknown. A recent study from our laboratory has suggested that CHX may induce ...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2008.10.012
更新日期:2009-01-15 00:00:00
abstract::Oxidative stress is involved in hepatic stellate cells (HSCs) activation and extracellular matrix overproduction. We previously reported the promising effects of dioscin against CCl4-induced liver fibrosis, but its effects and mechanisms on BDL- and DMN-induced liver fibrosis remain unknown. The results in the present...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2015.12.024
更新日期:2016-02-01 00:00:00
abstract::Mechanisms of cyclosporine A (CsA)-induced nephrotoxicity were generally thought to be hemodynamic in origin; however, there is now accumulating evidence of a direct tubular effect. Although genomic and proteomic experiments by our group and others provided overall information on genes and proteins up- or down-regulat...
journal_title:Toxicology and applied pharmacology
pub_type: 杂志文章
doi:10.1016/j.taap.2011.11.007
更新日期:2012-01-15 00:00:00