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Tada Y, Hojo M, Yuzawa K, Nagasawa A, Suzuki J, Inomata A, Moriyasu T, Nakae D. Iron oxide nanoparticles exert inhibitory effects on N-Bis(2-hydroxypropyl)nitrosamine (DHPN)-induced lung tumorigenesis in rats. Regul Toxicol Pharmacol 2021; 128:105072. [PMID: 34742869 DOI: 10.1016/j.yrtph.2021.105072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 10/19/2022]
Abstract
Iron oxide nanoparticles (magnetite) have been widely used in industry and medicine. However, the safety assessment of magnetite has not been fully completed. The present study was conducted to assess effects of magnetite on carcinogenic activity, using a medium-term bioassay protocol. A total of 100 male Fischer 344 rats, 6 weeks old, were randomly divided into 5 groups of 20 animals each, and given a basal diet and drinking water containing 0 or 0.1% of N-bis(2-hydroxypropyl)nitrosamine (DHPN) for 2 weeks. Two weeks later, the rats were intratracheally instilled magnetite 7 times at an interval of 4 weeks, at the doses of 0, 1.0 or 5.0 mg/kg body weight, and sacrificed at the end of the experimental period of 30 weeks. The multiplicities of macroscopic lung nodules and histopathologically diagnosed bronchiolo-alveolar hyperplasia, induced by DHPN, were both significantly decreased by the high dose of magnetite. The expression of minichromosome maintenance (MCM) protein 7 in non-tumoral alveolar epithelial cells, and the number of CD163-positive macrophages in tumor nodules were both significantly reduced by magnetite. It is suggested that magnetite exerts inhibitory effects against DHPN-induced lung tumorigenesis, by the reduction of alveolar epithelial proliferation and the M2 polarization of tumor-associated macrophages.
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Affiliation(s)
- Yukie Tada
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan.
| | - Motoki Hojo
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Katsuhiro Yuzawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Akemichi Nagasawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Jin Suzuki
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Takako Moriyasu
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunincho, Shin'juku, Tokyo, 169-0073, Japan
| | - Dai Nakae
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakura-ga-Oka, Setagaya, Tokyo, 156-8502, Japan.
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Enomoto M, Iwata H, Iida M. Contribution of toxicologic pathologists for the safety of human health in biomedical research-past, present, and future of the JSTP. J Toxicol Pathol 2021; 34:275-282. [PMID: 34629730 PMCID: PMC8484924 DOI: 10.1293/tox.2021-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 11/19/2022] Open
Abstract
The research field of “Toxicologic Pathology” evaluates potentially toxic chemical
exposures and chemically mediated illnesses in humans and experimental animals.
Comparative studies of chemical exposures between model organisms and humans are essential
for the risk assessment of chemicals and human health. Here we review the development and
activities of the Japanese Society of Toxicologic Pathology (JSTP) during its 37-year
history. Toxicological pathology studies provide many interesting and valuable findings.
Rodent cancer bioassay data demonstrate the importance of dose levels, times, and duration
of exposures to chemicals that possibly cause human cancers. Studies of toxic injuries in
the nasal cavity demonstrate that specific chemical compounds affect different target
cells and tissues. These observations are relevant for current air pollution studies in
the preventive medicine field. Future toxicological pathology studies will be enhanced by
applying molecular pathology with advanced observation techniques. In addition to the
nasal cavity, another sense organ such as the tongue should be a potential next program of
our mission for risk assessment of inhaled and ingested chemicals. As a message to the
younger members of the JSTP, interdisciplinary and global cooperation should be
emphasized. Elucidating the mechanisms of toxicologic pathology with a combination of
advanced expertise in genetics and molecular biology offers promise for future advances by
JSTP members.
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Affiliation(s)
- Makoto Enomoto
- Former Vice-President, An-pyo Center, 582-2 Shioshinden, Iwata-city, Shizuoka, Japan
| | - Hijiri Iwata
- Laboratory of Toxicologic Pathology, LunaPath LLC, 3-5-1 Aoihigashi, Naka-ku, Hamamatsu-shi, Shizuoka, Japan
| | - Mari Iida
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, 1111 Highland Ave, WIMR3136, Madison, WI 53705, USA
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Kobayashi T, Oshima Y, Tsubokura Y, Muroi T, Ajimi S, Nakai M, Kawaguchi K, Sasaki T, Shinohara N, Imatanaka N. Time-course comparison of pulmonary inflammation induced by intratracheal instillation of four different nickel oxide nanoparticles in male Fischer rats. J Toxicol Pathol 2020; 34:43-55. [PMID: 33627944 PMCID: PMC7890174 DOI: 10.1293/tox.2020-0066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/20/2020] [Indexed: 11/19/2022] Open
Abstract
Occupational exposure to nickel oxide (NiO) is an important cause of respiratory tract cancer. Toxicity is known to be associated with the dissociated component, i.e. nickel (II) ions. To address the relationship between physicochemical properties, including solubility in artificial lysosomal fluid, of NiO and time-course changes in the pulmonary response, we conducted an intratracheal instillation study in male Fischer rats using four different well-characterized NiO products, US3352 (NiO A), NovaWireNi01 (NiO B), I small particle (NiO C), and 637130 (NiO D). The NiOs were suspended in purified water and instilled once intratracheally into male F344 rats (12 weeks old) at 0 (vehicle control), 0.67, 2, and 6 mg/kg body weight. The animals were euthanized on days 3, 28, or 91 after instillation, and blood analysis, bronchoalveolar lavage fluid (BALF) testing, and histopathological examination were performed. The most soluble product, NiO B, caused the most severe systemic toxicity, leading to a high mortality rate, but the response was transient and surviving animals recovered. The second-most-soluble material, NiO D, and the third, NiO A, caused evident pulmonary inflammation, and the responses persisted for at least 91 days with collagen proliferation. In contrast, NiO C induced barely detectable inflammation in the BALF examination, and no marked changes were noted on histopathology. These results indicate that the early phase toxic potential of NiO products, but not the persistence of pulmonary inflammation, is associated with their solubility.
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Affiliation(s)
- Toshio Kobayashi
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan.,The United Graduate School of Veterinary Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi 753-8511, Japan
| | - Yutaka Oshima
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
| | - Yasuhiro Tsubokura
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
| | - Takako Muroi
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
| | - Shozo Ajimi
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
| | - Makoto Nakai
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
| | - Kenji Kawaguchi
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560, Japan
| | - Takeshi Sasaki
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560, Japan
| | - Naohide Shinohara
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560, Japan
| | - Nobuya Imatanaka
- CERI Hita, Chemicals Evaluation and Research Institute, Japan, 3-822 Ishii-machi, Hita-shi, Oita 877-0061, Japan
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Barosova H, Chortarea S, Peikertova P, Clift MJD, Petri-Fink A, Kukutschova J, Rothen-Rutishauser B. Biological response of an in vitro human 3D lung cell model exposed to brake wear debris varies based on brake pad formulation. Arch Toxicol 2018; 92:2339-2351. [PMID: 29748788 PMCID: PMC6015608 DOI: 10.1007/s00204-018-2218-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 05/03/2018] [Indexed: 10/25/2022]
Abstract
Wear particles from automotive friction brake pads of various sizes, morphology, and chemical composition are significant contributors towards particulate matter. Knowledge concerning the potential adverse effects following inhalation exposure to brake wear debris is limited. Our aim was, therefore, to generate brake wear particles released from commercial low-metallic and non-asbestos organic automotive brake pads used in mid-size passenger cars by a full-scale brake dynamometer with an environmental chamber simulating urban driving and to deduce their potential hazard in vitro. The collected fractions were analysed using scanning electron microscopy via energy-dispersive X-ray spectroscopy (SEM-EDS) and Raman microspectroscopy. The biological impact of the samples was investigated using a human 3D multicellular model consisting of human epithelial cells (A549) and human primary immune cells (macrophages and dendritic cells) mimicking the human epithelial tissue barrier. The viability, morphology, oxidative stress, and (pro-)inflammatory response of the cells were assessed following 24 h exposure to ~ 12, ~ 24, and ~ 48 µg/cm2 of non-airborne samples and to ~ 3.7 µg/cm2 of different brake wear size fractions (2-4, 1-2, and 0.25-1 µm) applying a pseudo-air-liquid interface approach. Brake wear debris with low-metallic formula does not induce any adverse biological effects to the in vitro lung multicellular model. Brake wear particles from non-asbestos organic formulated pads, however, induced increased (pro-)inflammatory mediator release from the same in vitro system. The latter finding can be attributed to the different particle compositions, specifically the presence of anatase.
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Affiliation(s)
- Hana Barosova
- BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- Nanotechnology Centre, VŠB-Technical University of Ostrava, Ostrava, Czech Republic
| | - Savvina Chortarea
- BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- Laboratory for Materials-Biology Interactions, Empa, Swiss Federal Laboratories for Materials, Science and Technology, St. Gallen, Switzerland
| | - Pavlina Peikertova
- Nanotechnology Centre, VŠB-Technical University of Ostrava, Ostrava, Czech Republic
| | - Martin J. D. Clift
- BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- In Vitro Toxicology Group, Swansea University Medical School, Swansea, Wales UK
| | - Alke Petri-Fink
- BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- Chemistry Department, University of Fribourg, Fribourg, Switzerland
| | - Jana Kukutschova
- Nanotechnology Centre, VŠB-Technical University of Ostrava, Ostrava, Czech Republic
| | - Barbara Rothen-Rutishauser
- BioNanomaterials Group, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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Armstead AL, Minarchick VC, Porter DW, Nurkiewicz TR, Li B. Acute inflammatory responses of nanoparticles in an intra-tracheal instillation rat model. PLoS One 2015; 10:e0118778. [PMID: 25738830 PMCID: PMC4349695 DOI: 10.1371/journal.pone.0118778] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 01/22/2015] [Indexed: 12/30/2022] Open
Abstract
Exposure to hard metal tungsten carbide cobalt (WC-Co) "dusts" in enclosed industrial environments is known to contribute to the development of hard metal lung disease and an increased risk for lung cancer. Currently, the influence of local and systemic inflammation on disease progression following WC-Co exposure remains unclear. To better understand the relationship between WC-Co nanoparticle (NP) exposure and its resultant effects, the acute local pulmonary and systemic inflammatory responses caused by WC-Co NPs were explored using an intra-tracheal instillation (IT) model and compared to those of CeO2 (another occupational hazard) NP exposure. Sprague-Dawley rats were given an IT dose (0-500 μg per rat) of WC-Co or CeO2 NPs. Following 24-hr exposure, broncho-alveolar lavage fluid and whole blood were collected and analyzed. A consistent lack of acute local pulmonary inflammation was observed in terms of the broncho-alveolar lavage fluid parameters examined (i.e. LDH, albumin, and macrophage activation) in animals exposed to WC-Co NP; however, significant acute pulmonary inflammation was observed in the CeO2 NP group. The lack of acute inflammation following WC-Co NP exposure contrasts with earlier in vivo reports regarding WC-Co toxicity in rats, illuminating the critical role of NP dose and exposure time and bringing into question the potential role of impurities in particle samples. Further, we demonstrated that WC-Co NP exposure does not induce acute systemic effects since no significant increase in circulating inflammatory cytokines were observed. Taken together, the results of this in vivo study illustrate the distinct differences in acute local pulmonary and systemic inflammatory responses to NPs composed of WC-Co and CeO2; therefore, it is important that the outcomes of pulmonary exposure to one type of NPs may not be implicitly extrapolated to other types of NPs.
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Affiliation(s)
- Andrea L. Armstead
- Biomaterials, Bioengineering & Nanotechnology Laboratory, Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Pharmaceutical and Pharmacological Sciences Graduate Program, School of Pharmacy, West Virginia University, Morgantown, West Virginia, United States of America
| | - Valerie C. Minarchick
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Center for Cardiovascular and Respiratory Sciences, Robert C. Byrd Health Sciences Center, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
| | - Dale W. Porter
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Timothy R. Nurkiewicz
- Department of Physiology and Pharmacology, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Center for Cardiovascular and Respiratory Sciences, Robert C. Byrd Health Sciences Center, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
| | - Bingyun Li
- Biomaterials, Bioengineering & Nanotechnology Laboratory, Department of Orthopaedics, School of Medicine, West Virginia University, Morgantown, West Virginia, United States of America
- Pharmaceutical and Pharmacological Sciences Graduate Program, School of Pharmacy, West Virginia University, Morgantown, West Virginia, United States of America
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, United States of America
- Mary Babb Randolph Cancer Center, Morgantown, West Virginia, United States of America
- * E-mail:
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Autophagy as a Possible Underlying Mechanism of Nanomaterial Toxicity. NANOMATERIALS 2014; 4:548-582. [PMID: 28344236 PMCID: PMC5304698 DOI: 10.3390/nano4030548] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 05/23/2014] [Accepted: 06/23/2014] [Indexed: 12/27/2022]
Abstract
The rapid development of nanotechnologies is raising safety concerns because of the potential effects of engineered nanomaterials on human health, particularly at the respiratory level. Since the last decades, many in vivo studies have been interested in the pulmonary effects of different classes of nanomaterials. It has been shown that some of them can induce toxic effects, essentially depending on their physico-chemical characteristics, but other studies did not identify such effects. Inflammation and oxidative stress are currently the two main mechanisms described to explain the observed toxicity. However, the exact underlying mechanism(s) still remain(s) unknown and autophagy could represent an interesting candidate. Autophagy is a physiological process in which cytoplasmic components are digested via a lysosomal pathway. It has been shown that autophagy is involved in the pathogenesis and the progression of human diseases, and is able to modulate the oxidative stress and pro-inflammatory responses. A growing amount of literature suggests that a link between nanomaterial toxicity and autophagy impairment could exist. In this review, we will first summarize what is known about the respiratory effects of nanomaterials and we will then discuss the possible involvement of autophagy in this toxicity. This review should help understand why autophagy impairment could be taken as a promising candidate to fully understand nanomaterials toxicity.
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Tada Y, Yano N, Takahashi H, Yuzawa K, Ando H, Kubo Y, Nagasawa A, Inomata A, Ogata A, Nakae D. Long-term Pulmonary Responses to Quadweekly Intermittent Intratracheal Spray Instillations of Magnetite (Fe3O4) Nanoparticles for 52 Weeks in Fischer 344 Rats. J Toxicol Pathol 2013; 26:393-403. [PMID: 24526812 PMCID: PMC3921922 DOI: 10.1293/tox.2013-0036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 08/13/2013] [Indexed: 11/19/2022] Open
Abstract
Information about potential risks of iron nanomaterials is still limited, while a wide variety of applications are expected. We recently reported acute phase responses of male and female Fischer 344 rats after a single intratracheal spray instillation of Fe3O4 nanoparticles (magnetite), clearly showing dose-dependent pulmonary inflammatory changes (Tada et al., J Toxicol Pathol 25, 233–239, 2012). The present study assessed long-term responses of male and female Fischer 344 rats to multiple administrations of magnetite. Ten-week-old male and female Fischer 344 rats (n=20/group) were exposed to a total of 13 quadweekly intermittent intratracheal spray instillations of magnetite during the experimental period of 52 weeks, at doses of 0, 0.2 (low), 1.0 (medium) and 5.0 (high-dose) mg/kg body weight per administration. Absolute and relative lung weights of the high-dose group were significantly higher than those of the control group. Macroscopically, slight enlargement and scattered black patches were recognized in the lungs and the lung-associated lymph nodes of the high-dose group. Histopathologically, infiltration of macrophages phagocytosing magnetite (all dose groups) and of chronic inflammatory cells (medium- and high-dose males and high-dose females), alveolar bronchiolization and granuloma (high-dose group) were observed. In addition, alveolar hyperplasias were observed in some rats of the high-dose group, and cytoplasmic overexpression of β-catenin protein was immunohistochemically found in such lesions. The present results clearly show that instilled magnetite causes chronic inflammatory responses in the lung. These responses occur in a dose-dependent manner without apparent differences among sexes
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Affiliation(s)
- Yukie Tada
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Norio Yano
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Hiroshi Takahashi
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Katsuhiro Yuzawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Hiroshi Ando
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Yoshikazu Kubo
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Akemichi Nagasawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Akio Ogata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Dai Nakae
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan ; Tokyo University of Agriculture, 1-1-1 Sakura-ga-Oka, Setagaya, Tokyo 156-8502, Japan
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Zhao B, Sun L, Zhang W, Wang Y, Zhu J, Zhu X, Yang L, Li C, Zhang Z, Zhang Y. Secretion of intestinal goblet cells: a novel excretion pathway of nanoparticles. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 10:839-49. [PMID: 24183999 DOI: 10.1016/j.nano.2013.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 09/01/2013] [Accepted: 10/18/2013] [Indexed: 01/23/2023]
Abstract
UNLABELLED Understanding the excretion pathway is one of the most important prerequisites for the safe use of nanoparticles in biomedicine. However, the excretion of nanoparticles in animals remains largely unknown, except for some particles very small in size. Here we report a novel natural pathway for nanoparticle excretion, the intestinal goblet cell (GC) secretion pathway (IGCSP). Direct live observation of the behavior of 30-200nm activated carbon nanoparticles (ACNP) demonstrated that ACNP microinjected into the yolk sac of zebrafish can be excreted directly through intestinal tract without involving the hepato-biliary (hap-bile) system. Histopathological examination in mice after ligation of the common bile duct (CBD) demonstrated that the intravenously-injected ACNP were excreted into the gut lumen through the secretion of intestinal GCs. ACNP in various secretion phases were revealed by histopathological examination and transmission electron microscopy (TEM). IGCSP, in combination with renal and hap-bile pathways, constitutes a complete nanoparticle excretion mechanism. FROM THE CLINICAL EDITOR Nanoparticle elimination pathways are in the forefront of interest in an effort to optimize and enable nanomedicine applications. This team of authors reports a novel natural pathway for nanoparticle excretion, the intestinal goblet cell (GC) secretion pathway (IGCSP). Direct live observation of the behavior of activated carbon nanoparticles has shown excretion directly through the intestinal tract without involving the hepato-biliary (hap-bile) system in a zebrafish model.
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Affiliation(s)
- Baoquan Zhao
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China
| | - Lan Sun
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China
| | - Wuxu Zhang
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China; School of Pharmacy; and Nanotechnology Research Center for Drugs; Zhengzhou University, Zhengzhou, China
| | - Yuxia Wang
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China
| | - Junjing Zhu
- Hangzhou Hunter Biotechnology Incorporation, Hangzhou, China
| | - Xiaoyu Zhu
- Hangzhou Hunter Biotechnology Incorporation, Hangzhou, China
| | - Liuzhong Yang
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China
| | - Chunqi Li
- Hangzhou Hunter Biotechnology Incorporation, Hangzhou, China
| | - Zhenzhong Zhang
- School of Pharmacy; and Nanotechnology Research Center for Drugs; Zhengzhou University, Zhengzhou, China
| | - Yingge Zhang
- Institute of Pharmacology and Toxicology and Key Laboratory of Nanopharmacology and NanoToxicology, Beijing Academy of Medical Sciences, Beijing, China.
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