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Takemoto T, Kaetsu R, Hanayama M, Ishiyama Y, Sadamura M, Nishio K, Tsunoda M, Asano M, Motoyoshi M. Acid-electrolyzed functional water-induces Interleukin-1α release from Intracellular Storage Sites in Oral Squamous Cell Carcinoma. Int J Med Sci 2021; 18:1746-1752. [PMID: 33746591 PMCID: PMC7976592 DOI: 10.7150/ijms.53999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/21/2021] [Indexed: 11/24/2022] Open
Abstract
The aim of this study was to examine the acid-electrolyzed functional water (FW)-mediated cytokine release in an oral squamous cell carcinoma-derived cell line (OSCC) following treatment with FW. FW is generated by the electrolysis of a sodium chloride solution and accelerate the burn wound healing. To elucidate the underlying mechanisms, the cytokine/chemokine secretion profile of HSC3 cells was examined using a cytokine array. FW treatment significantly induced interleukin (IL)-1α secretion, which was confirmed by enzyme-linked immunosorbent assay. Subsequently, the HSC3 cells were pre-treated with cycloheximide (CHX) for 1 h prior to FW stimulation to determine whether the augmented IL-1α secretion was due to enhanced protein synthesis. CHX pre-treatment did not affect IL-1α secretion suggesting that the secreted IL-1α might have been derived from intracellular storage sites. The amount of IL-1α in the cell lysate of the FW-treated HSC3 cells was significantly lower than that of the non-treated cells. Immunofluorescence staining using a polyclonal antibody against full-length IL-1α revealed a drastic reduction in IL-1α inside the FW- treated cells. IL-1α is synthesized in its precursor form (pIL-1α) and cleaved to produce pro-piece and mature IL-1α (ppIL-1α and mIL-1α) inside the cells. In the present study, only pIL-1α was detected within the HSC3 cells in its resting state. However, FW stimulation resulted in the release of the 33 kDa and two other smaller forms (about 19 kDa) of the protein. These results indicates that FW treatment induces IL-1α secretion, a typical alarmin, from the intracellular storage in OSCC cells.
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Affiliation(s)
- Tomoko Takemoto
- Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Oral Structural and Functional Biology, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Ryo Kaetsu
- Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Oral Structural and Functional Biology, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Machiko Hanayama
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Yuuichi Ishiyama
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Masayuki Sadamura
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Kensuke Nishio
- Department of Complete Denture Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan, 101-8310
| | - Mariko Tsunoda
- Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Masatake Asano
- Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Mitsuru Motoyoshi
- Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Clinical Research, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
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Ozawa Y, Gojoubori T, Ota H, Takemoto T, Suguro H, Nishida T, Satou S, Asano M. Bone regeneration is enhanced by the combined use of acid-electrolyzed functional water with hydroxyapatite/collagen composite. J Biomed Mater Res B Appl Biomater 2019; 108:1679-1686. [PMID: 31820853 DOI: 10.1002/jbm.b.34513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/16/2019] [Accepted: 10/28/2019] [Indexed: 11/05/2022]
Abstract
Hydroxyapatite/collagen (HAP/Col) composite has a nanostructure and composition similar to that of natural bone. Herein, we have evaluated the beneficial effects of acid-electrolyzed functional water (FW) in combination with HAP/Col composite as an irrigation material in a rat calvarium defect model. The rats were divided into four groups: control, PBS irrigation; FW, FW irrigation; HAP/Col, filled with HAP/Col; FW + HAP/Col, FW irrigation prior to HAP/Col filling. Bone volume (BV) and bone mineral density (BMD) of the newly formed bone were analyzed by microcomputed tomography. The results indicated that the combined use of FW and HAP/Col significantly augmented both BV (12.25 ± 1.93 mm3 , control: 3.22 ± 0.55 mm3 , 6 weeks) and BMD (120.09 ± 14.76 cm3 /mg vs. control: 54.67 ± 7.20 cm3 /mg, 6 weeks) in a time-dependent manner, which might be attributed to the soluble factor-inducing ability of FW. Based on this assumption, bFGF concentration in peripheral blood was measured. bFGF concentration was significantly increased in the FW + HAP/Col group (68.25 ± 9.2 pg/ml vs. control: 21.70 ± 8.18 pg/ml, 6 hr). Real-time PCR demonstrated significant augmentation of MCSF (2.82 ± 0.59-fold), RANKL (2.51 ± 0.33-fold) and BMP7 (1.66 ± 0.25-fold) (bone regeneration-related genes) and PDGF (1.31 ± 0.15-fold), VEGF (3.27 ± 0.42-ld) and IL-8 (6.77 ± 2.02-fold) (angiogenic genes) mRNAs in the FW + HAP/Col group. Taken together, these results suggest that the combined use of FW and HAP/Col induces bone regeneration, presumably by inducing the factors contributing to bone regeneration and angiogenesis.
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Affiliation(s)
- Yasumasa Ozawa
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan.,Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
| | - Takahiro Gojoubori
- Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Hirotaka Ota
- Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Tomoko Takemoto
- Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Oral Structural and Functional Biology, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Hisashi Suguro
- Department of Endodontics, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Tetsuya Nishida
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Shuuichi Satou
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Masatake Asano
- Department of Pathology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Immunology and Pathobiology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
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