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Koga Y, Satoh T, Kaira K, Koka M, Hisada T, Hirato J, Altan B, Yatomi M, Ono A, Kamide Y, Shimizu Y, Aoki-Saito H, Tsurumaki H, Shimizu K, Mogi A, Ishizuka T, Yamada M, Dobashi K. Elemental and immunohistochemical analysis of the lungs and hilar lymph node in a patient with asbestos exposure, a pilot study. Environ Health Prev Med 2016; 21:492-500. [PMID: 27699693 DOI: 10.1007/s12199-016-0576-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 08/08/2016] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES Studies have shown that inhaled mine dust, such as asbestos, can be translocated to various organs including the lymph nodes. Recently, we have established a protocol that enables us to identify inhaled elements using paraffin embedded lung specimens by in-air microparticle-induced X-ray emission (micro-PIXE). However, little research has examined the concentration of these inhaled fibers in various organs or the mechanisms of their translocation. In this study, we compared the concentration of inhaled fibers in the lung parenchyma to the concentration in the hilar lymph node as well as to determine the elemental spatial distribution of the inhaled fibers in a patient with occupational asbestos exposure. METHODS Lung tissues and hilar lymph node in a patient with asbestos exposure were used in this study. Elemental analysis was performed by in-air micro-PIXE. Immunohistochemical analysis was performed using anti CD163, smooth muscle actin, vimentin and β-catenin antibody. RESULTS The analysis revealed that the amount of inhaled silicon was approximately 6 times higher in the lymph node than in the lungs. The spatial analysis showed that silicon, iron and aluminium were co-localized in the hilar lymph node. The immunohistochemical analysis showed localized agreement of the inhaled fibers with macrophages, smooth muscle actin, and vimentin in the hilar lymph node. CONCLUSIONS This study showed that in-air micro-PIXE could be useful for analyzing the elemental distribution and quantification of inhaled fibers in the human body. Furthermore, immunohistochemistry in combination with in-air micro-PIXE analyses may help to determine the mechanism of mine dust distribution in vivo.
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Affiliation(s)
- Yasuhiko Koga
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan.
| | - Takahiro Satoh
- Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki-machi, Takasaki, Gunma, 370-1292, Japan
| | - Kyoichi Kaira
- Department of Oncology Clinical Development, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Masashi Koka
- Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki-machi, Takasaki, Gunma, 370-1292, Japan
| | - Takeshi Hisada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Junko Hirato
- Department of Pathology, Gunma University Hospital, 3-39-22 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Bolag Altan
- Department of Oncology Clinical Development, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Masakiyo Yatomi
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Akihiro Ono
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Yosuke Kamide
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan.,Department of Allergy, Sagamihara National Hospital, 18-1 Sakuradai minami-ku, Sagamihara, Kanagawa, 252-0392, Japan
| | - Yasuo Shimizu
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, 880 Kitakobayashi, Mibu-machi, Tochigi, 321-0293, Japan
| | - Haruka Aoki-Saito
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Hiroaki Tsurumaki
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Kimihiro Shimizu
- Department of Thoracic Visceral Organ Surgery, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Akira Mogi
- Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Tamotsu Ishizuka
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Masanobu Yamada
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi, Maebashi, Gunma, 371-8511, Japan
| | - Kunio Dobashi
- Gunma University Graduate School of Health Sciences, 3-39-22 sho-wa machi, Maebashi, Gunma, 371-8514, Japan.
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