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Laval M, Dumesny C, Eutick M, Baldwin GS, Marshall KM. Oral trivalent bismuth ions decrease, and trivalent indium or ruthenium ions increase, intestinal tumor burden in Apc Δ14/+ mice. Metallomics 2018; 10:194-200. [PMID: 29296993 DOI: 10.1039/c7mt00272f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Immature forms of the peptide hormone gastrin have been implicated in the development of colorectal cancer (CRC). The biological activity of glycine-extended gastrin (Ggly) is dependent on the binding of Fe3+ ions in vitro and in vivo. The aim of the present study was to determine the effect of blocking Fe3+ ion binding to Ggly, using Bi3+, In3+ or Ru3+ ions, on the development of intestinal tumors in APCΔ14/+ mice. APCΔ14/+ mice were treated orally with Bi3+, In3+ or Ru3+ ions for up to 60 days, serum trace metals were analyzed by inductively coupled plasma mass spectrometry, and the incidence and size of intestinal tumors were assessed. Bi3+ treatment significantly decreased the number of tumors larger than 3 mm in male mice. In3+ or Ru3+ treatment significantly increased the tumor burden in all animals and In3+ increased the number of tumors larger than 3 mm or 5 mm in male mice alone. The fact that binding of In3+ or Ru3+ ions to Ggly was orders of magnitude stronger than the binding of Bi3+ ions implies that the inhibitory effect of Bi3+ ions is not a consequence of a reduction in Ggly activity. However, further testing of higher doses of Bi3+ ions for longer periods as an oral treatment for intestinal tumors is warranted.
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Affiliation(s)
- Marie Laval
- University of Melbourne Department of Surgery, Austin Health, Heidelberg, Victoria, Australia.
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Choi S, Won YL, Kim D, Yi GY, Park JS, Kim EA. Subclinical interstitial lung damage in workers exposed to indium compounds. Ann Occup Environ Med 2013; 25:24. [PMID: 24472147 PMCID: PMC3923332 DOI: 10.1186/2052-4374-25-24] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 10/10/2013] [Indexed: 01/15/2023] Open
Abstract
Objectives The present study was designed to determine whether there is a relationship between indium compound exposure and interstitial lung damage in workers employed at indium tin oxide manufacturing and reclaiming factories in Korea. Methods In 2012, we conducted a study for the prevention of indium induced lung damage in Korea and identified 78 workers who had serum indium or Krebs von den Lungen-6 (KL-6) levels that were higher than the reference values set in Japan (3 μg/L and 500 U/mL, respectively). Thirty-four of the 78 workers underwent chest high-resolution computed tomography (HRCT), and their data were used for statistical analysis. Results Geometric means (geometric standard deviations) for serum indium, KL-6, and surfactant protein D (SP-D) were 10.9 (6.65) μg/L, 859.0 (1.85) U/mL, and 179.27 (1.81) ng/mL, respectively. HRCT showed intralobular interstitial thickening in 9 workers. A dose–response trend was statistically significant for blood KL-6 levels. All workers who had indium levels ≥50 μg/L had KL-6 levels that exceeded the reference values. However, dose–response trends for blood SP-D levels, KL-6 levels, SP-D levels, and interstitial changes on the HRCT scans were not significantly different. Conclusions Our findings suggest that interstitial lung changes could be present in workers with indium exposure. Further studies are required and health risk information regarding indium exposure should be communicated to workers and employers in industries where indium compounds are used to prevent indium induced lung damage in Korea.
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Affiliation(s)
| | | | | | | | | | - Eun-A Kim
- Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Incheon, Republic of Korea.
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Hoet P, De Graef E, Swennen B, Seminck T, Yakoub Y, Deumer G, Haufroid V, Lison D. Occupational exposure to indium: what does biomonitoring tell us? Toxicol Lett 2011; 213:122-8. [PMID: 21771645 DOI: 10.1016/j.toxlet.2011.07.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 06/07/2011] [Accepted: 07/04/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND The industrial uses of indium, a rare metal with no known physiological role in humans, have increased dramatically over the past 15 years. The results of animal toxicity studies showing pulmonary and systemic effects as well as some reports in workers have created a growing concern about the possible occurrence of toxic effects in exposed workers. Validated biomarkers to assess exposure to indium are not available. OBJECTIVES This work aimed at investigating the kinetics of indium in urine (In-U) and plasma (In-Pl) in workers manufacturing In ingots and mainly exposed to hardly water-soluble In compounds. All nine workers from the In department of a large metallurgical concern participated in the study as well as 5 retired workers and 20 controls. METHODS Personal breathing zone air was collected throughout the work shift on Monday and Friday. Blood and urine samples were collected, before and after the shift, on the same day as the air sampling and on preshift the next Monday after a non-working week-end. Moreover, rats were given either InCl(3) by intraperitoneal injection or In(2)O(3) by pharyngeal aspiration, In was followed in plasma during 120 days and measured in tissues 120 days after exposure. RESULTS Higher In-Pl and In-U concentrations were found in both current (range 0.32-12.61 μg/L plasma; 0.22-3.50 μg/g creat) and former (0.03-4.38 μg/L plasma; 0.02-0.69 μg/g creat) workers compared with controls (<0.03 μg/L plasma; <0.02 μg/g creat). Both biological parameters were highly correlated but no correlation was found between In-air (10-1030 μg/m(3)) and In-Pl or In-U. Normalizing In-U by the urinary creatinine concentration reduced the inter- (from 90% to 70%) and intra-individual variability (from 54% to 35%). In-Pl remained remarkably stable along the working week (inter- and intra-individual variability: 89% and 10%, respectively). Neither In-U nor In-Pl significantly increased during the day or the week. A week-end without occupational exposure was not sufficient to reach the background In-Pl and In-U levels measured in controls. The results of the experimental investigations confirmed the hypothesis that inhalation of hardly soluble In compounds may cause accumulation of In in the body leading to a prolonged "endogenous exposure" from both a lung depot of "insoluble" particles that are progressively absorbed and from a retention depot in other internal organs. CONCLUSION This study shows that in workers exposed to hardly soluble In compounds, In-U and In-Pl are very sensitive to detect exposure and mainly reflect long-term exposure. In-Pl levels are particularly stable for a given individual. In-U might be more influenced than In-Pl by recent exposure. Both parameters remained high years after withdrawal from exposure, indicating a possible endogenous exposure and a prolonged risk of pulmonary and systemic diseases even after work exposure has ceased.
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Affiliation(s)
- Perrine Hoet
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Université Catholique de Louvain (UCL), Brussels, Belgium.
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Nagano K, Gotoh K, Kasai T, Aiso S, Nishizawa T, Ohnishi M, Ikawa N, Eitaki Y, Yamada K, Arito H, Fukushima S. Two‐ and 13‐week Inhalation Toxicities of Indium‐tin Oxide and Indium Oxide in Rats. J Occup Health 2011; 53:51-63. [DOI: 10.1539/joh.l10128] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Kasuke Nagano
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Kaoru Gotoh
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Tatsuya Kasai
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Shigetoshi Aiso
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Tomoshi Nishizawa
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Makoto Ohnishi
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Naoki Ikawa
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Yoko Eitaki
- Occupational Health Research and Development Center, Japan Industrial Safety and Health AssociationJapan
| | - Kenichi Yamada
- Occupational Health Research and Development Center, Japan Industrial Safety and Health AssociationJapan
| | - Heihachiro Arito
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
| | - Shoji Fukushima
- Japan Bioassay Research Center, Japan Industrial Safety and Health AssociationJapan
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5
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Wu YC, Li HJ, Yang HZ. A sensitive and highly selective fluorescent sensor for In3+. Org Biomol Chem 2010; 8:3394-7. [DOI: 10.1039/c0ob00002g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Asakura K, Satoh H, Chiba M, Okamoto M, Serizawa K, Nakano M, Omae K. Genotoxicity studies of heavy metals: lead, bismuth, indium, silver and antimony. J Occup Health 2009; 51:498-512. [PMID: 19851040 DOI: 10.1539/joh.l9080] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Many kinds of heavy metals are used in industry; thus, it is important for us to clarify their toxicity. For example, lead, which is a component of solder, is notorious for its neurotoxicity, and substitute materials have been sought for many years. Therefore, we examined the genotoxicity of lead and also those of metallic bismuth, indium, silver and antimony which are possible substitutes for lead in solder. METHODS Bacterial reverse mutation tests and chromosomal aberration tests in cultured mammalian cells were performed according to standard procedures. RESULTS Antimony showed genotoxicity in both tests, and bismuth also showed positive results in the chromosomal aberration test. In contrast, lead, indium, and silver were considered to be inactive by the criteria of the present study. CONCLUSIONS Although further studies are needed because of the difficulty of genotoxicity evaluation using an in vitro system, sufficient precautions should be made when antimony and bismuth are used.
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Affiliation(s)
- Keiko Asakura
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo 160-8582, Japan
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Nakano M, Omae K, Tanaka A, Hirata M, Michikawa T, Kikuchi Y, Yoshioka N, Nishiwaki Y, Chonan T. Causal relationship between indium compound inhalation and effects on the lungs. J Occup Health 2009; 51:513-21. [PMID: 19834281 DOI: 10.1539/joh.l9077] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Recent case reports and epidemiological studies suggest that inhalation of indium dust induces lung damage. OBJECTIVES To elucidate the dose-dependent effects of indium on the lungs and to prove a causal relationship more clearly. METHODS A baseline observation was conducted on 465 workers currently exposed to indium, 127 workers formerly exposed to indium and 169 workers without indium exposure in 12 factories and 1 research laboratory from 2003 to 2006. Indium in serum (In-S) was determined as an exposure parameter, and its effects on the lungs were examined. RESULTS The means of In-S in the current, former and no exposure workers were 8.35, 9.63 and 0.56 ng/ml, respectively. The current and former exposure workers had significantly higher levels of KL-6, and showed significant dose-dependent increases in KL-6, SP-D, and SP-A. Current exposure workers with In-S of 3 ng/ml or above demonstrated a significant increase of KL-6 in both GM and prevalence exceeding the reference value. Approximately a quarter of the former exposure workers had interstitial changes as seen on chest HRCT. In-S of exposed workers who had been working before improvements of the working environment (Group Bef) and those who started working after improvements (Group Aft) were 12.29 and 0.81 ng/ml, respectively. Adjusted odds ratios indicated 87%, 71% and 44% reductions among Group Aft workers who exceeded the reference values of KL-6, SP-D and SP-A, respectively. CONCLUSION Dose-dependent lung effects due to indium exposure were shown, and a decrease of indium exposure reduced the lung effects. An In-S value of 3 ng/ml may be a cut-off value which could be used to prevent early effects on the lungs.
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Affiliation(s)
- Makiko Nakano
- Department of Preventive Medicine and Public Health, School of Medicine, Keio University, Tokyo 160-8582, Japan
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Asakura K, Satoh H, Chiba M, Okamoto M, Serizawa K, Nakano M, Omae K. Oral Toxicity of Indium in Rats: Single and 28‐Day Repeated Administration Studies. J Occup Health 2008; 50:471-9. [DOI: 10.1539/joh.l8070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Keiko Asakura
- Department of Preventive Medicine and Public HealthKeio University School of MedicineJapan
| | - Hiroshi Satoh
- Environmental Health Sciences, Tohoku University Graduate School of MedicineJapan
| | - Momoko Chiba
- School of Pharmaceutical Sciences, International University of Health and WelfareJapan
| | - Masahide Okamoto
- Department of Packaging Technology SolutionsProduction Engineering Research Laboratory, Hitachi Ltd.Japan
| | - Koji Serizawa
- Department of Packaging Technology SolutionsProduction Engineering Research Laboratory, Hitachi Ltd.Japan
| | - Makiko Nakano
- Department of Preventive Medicine and Public HealthKeio University School of MedicineJapan
| | - Kazuyuki Omae
- Department of Preventive Medicine and Public HealthKeio University School of MedicineJapan
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Ahlem A, Samira M, Ali EH, Pierre G, Leila T. Ultrastructural study of the intracellular behavior of four mineral elements in the lactating mammary gland cells: Study using conventional transmission electron microscopy. Microsc Res Tech 2008; 71:849-55. [DOI: 10.1002/jemt.20628] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Uemura T, Oda K, Omae K, Takebayashi T, Nomiyama T, Ishizuka C, Hosoda K, Sakurai H, Yamazaki K, Kabe I. Effects of Intratracheally Administered Indium Phosphide on Male Fischer 344 Rats. J Occup Health 2006. [DOI: 10.1539/joh.39.205] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Takamoto Uemura
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Kenichi Oda
- Department of PathologySchool of Medicine, Keio University
| | - Kazuyuki Omae
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Toru Takebayashi
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Tetsuo Nomiyama
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Chizuru Ishizuka
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Kanae Hosoda
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | - Haruhiko Sakurai
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
| | | | - Isamu Kabe
- Department of Preventive Medicine and Public HealthSchool of Medicine, Keio University
- Health Administration DepartmentFurukawa Electric Co
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Van Hulle M, De Cremer K, Vanholder R, Cornelis R. In vivo distribution and fractionation of indium in rats after subcutaneous and oral administration of [114mIn]InAs. ACTA ACUST UNITED AC 2005; 7:365-70. [PMID: 15798804 DOI: 10.1039/b408675a] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two in vivo experiments were carried out in this study. In the first experiment five rats were given two subcutaneous injections of [(114m)In]InAs. Major sites of accumulation were spleen, liver and kidney. The intracellular distribution of indium was examined by differential centrifugation. The cytoplasmic fraction contained most of the indium activity followed by the mitochondrial fraction. Both outcomes are in close agreement with the results obtained in previous studies. Chromatographic separations on a preparative size exclusion column were carried out. It was shown that indium was mostly bound to high molecular mass compounds in serum and in the cytoplasmic fraction of spleen, liver and kidney. In a second experiment five rats were given four oral doses of [(114m)In]InAs over a short period. Prior to this experiment the in vitro solubility of cold InAs in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF) was determined using graphite furnace atomic absorption spectroscopy. In the case of the SGF only 1.3% of an InAs suspension dissolved after 48 hours incubation at 37 degrees C. InAs was not soluble in SIF. Uptake of InAs after oral administration was minimal (<1%). Due to incomplete removal of traces of [(114m)In]InAs from the gastrointestinal tract, it was impossible to calculate accurately the in vivo distribution over the different organs. As the uptake and consequently the activity in the organs were very low, no further chromatographic separations could be carried out. Considering this very low uptake, it can be concluded that InAs will not accumulate in the body after oral exposure.
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Affiliation(s)
- Marijn Van Hulle
- Department of Analytical Chemistry, Ghent University, Proeftuinstraat 86, B-9000 Ghent, Belgium
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12
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Miyaki K, Hosoda K, Hirata M, Tanaka A, Nishiwaki Y, Takebayashi T, Inoue N, Omae K. Biological Monitoring of Indium by Means of Graphite Furnace Atomic Absorption Spectrophotometry in Workers Exposed to Particles of Indium Compounds. J Occup Health 2003; 45:228-30. [PMID: 14646281 DOI: 10.1539/joh.45.228] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Koichi Miyaki
- Department of Preventive Medicine and Public Health, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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Gottschling BC, Maronpot RR, Hailey JR, Peddada S, Moomaw CR, Klaunig JE, Nyska A. The role of oxidative stress in indium phosphide-induced lung carcinogenesis in rats. Toxicol Sci 2001; 64:28-40. [PMID: 11606799 DOI: 10.1093/toxsci/64.1.28] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Indium phosphide (IP), widely used in the microelectronics industry, was tested for potential carcinogenicity. Sixty male and 60 female Fischer 344 rats were exposed by aerosol for 6 h/day, 5 days/week, for 21 weeks (0.1 or 0.3 mg/m(3); stop exposure groups) or 105 weeks (0 or 0.03 mg/m(3) groups) with interim groups (10 animals/group/sex) evaluated at 3 months. After 3-month exposure, severe pulmonary inflammation with numerous infiltrating macrophages and alveolar proteinosis appeared. After 2 years, dose-dependent high incidences of alveolar/bronchiolar adenomas and carcinomas occurred in both sexes; four cases of squamous cell carcinomas appeared in males (0.3 mg/m(3)), and a variety of non-neoplastic lung lesions, including simple and atypical hyperplasia, chronic active inflammation, and squamous cyst, occurred in both sexes. To investigate whether inflammation-related oxidative stress functioned in the pathogenesis of IP-related pulmonary lesions, we stained lungs of control and high-dose animals immunohistochemically for four markers indicative of oxidative stress: inducible nitric oxide synthase (i-NOS), cyclooxygenase-2 (COX-2), glutathione-S-transferase Pi (GST-Pi), and 8-hydroxydeoxyguanosine (8-OHdG). Paraffin-embedded samples from the 3-month and 2-year control and treated females were used. i-NOS and COX-2 were highly expressed in inflammatory foci after 3 months; at 2 years, all four markers were expressed in non-neoplastic and neoplastic lesions. Most i-NOS staining, mainly in macrophages, occurred in chronic inflammatory and atypical hyperplastic lesions. GST-Pi and 8-OHdG expression occurred in cells of carcinoma epithelium, atypical hyperplasia, and squamous cysts. These findings suggest that IP inhalation causes pulmonary inflammation associated with oxidative stress, resulting in progression to atypical hyperplasia and neoplasia.
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Affiliation(s)
- B C Gottschling
- Indiana University School of Medicine, Division of Toxicology, Department of Pharmacology and Toxicology, 635 Barnhill Drive, MS 1021, Indianapolis, Indiana 46202, USA
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Dong W, Lewtas J, Luster MI. Role of endotoxin in tumor necrosis factor alpha expression from alveolar macrophages treated with urban air particles. Exp Lung Res 1996; 22:577-92. [PMID: 8886760 DOI: 10.3109/01902149609046043] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The effects of urban air and diesel particles on inflammatory cytokine gene expression, tumor necrosis factor alpha (TNF-alpha) in particular, were studied in rat alveolar macrophages. TNF-alpha, interleukin (IL)-1, IL-6, cytokine-induced neutrophil chemoattractant (CINC), and macrophage inflammatory protein (MIP)-2 gene expression and TNF-alpha secretion were increased in cells treated with 50 to 200 micrograms/mL of urban air particles in a concentration-related manner. There was no cytokine induction by diesel particles at any of the concentrations tested. Cytokine expression was not related to reactive oxygen species since antioxidants, such as catalase, TMTU, or DMSO, had no effect on TNF-alpha secretion. However, cytokine induction by urban air particles was completely prevented by polymyxin B, an antibiotic capable of neutralizing bacterial lipopolysaccharide (LPS) activities. Furthermore, LPS was detected on the urban air particles, but not on diesel particle. These results suggest that activation of cytokine gene expression and secretion in rat alveolar macrophages by urban air particles is due to the presence of endotoxin on the particles.
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Affiliation(s)
- W Dong
- Environmental Immunology and Neurobiology Section, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
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