1
|
Nakajima K, Odatsu T, Shinohara A, Baba K, Shibata Y, Sawase T. Effects of cleaning methods for custom abutment surfaces on gene expression of human gingival fibroblasts. J Oral Sci 2017; 59:533-539. [PMID: 29279567 DOI: 10.2334/josnusd.16-0681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The aim of this study was to develop an effective method for cleaning implant abutments made by computer-aided design and computer-aided manufacturing techniques and to investigate the effect of decontamination in vitro. Briefly, a newly developed reagent (PK) and/or vacuum plasma (Plasma) were used to clean the surfaces of zirconia disks, and the effects of this decontamination were evaluated by X-ray photoelectron spectroscopy. Human gingival fibroblasts (HGFs) were cultured on sample disks for 6, 24, and 48 h. We evaluated cell attachment and gene expression of the acute inflammatory cytokines interleukin-6 and vascular endothelial growth factor A, and type 1 collagen. In the PK and PK+Plasma groups, surface contaminants were reduced by washing. In addition, HGF attachments was increased in the PK and PK+Plasma groups. Gene expressions of interleukin-6 and vascular endothelial growth factor A were lower at 6 h. Gene expression of type 1 collagen was increased at all time points after seeding. These results suggest that decontamination of implant abutment surfaces is important in initial HGF attachment and may improve the biological seal of peri-implant soft tissue.
Collapse
Affiliation(s)
- Kazunori Nakajima
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Tetsurou Odatsu
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Ayano Shinohara
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University
| | - Koumei Baba
- Industrial Technology Center of Nagasaki.,Graduate School of Engineering, Nagasaki University
| | - Yasuaki Shibata
- Department of Histology and Cell Biology, Unit of Basic Medical Science, Graduate School of Biomedical Sciences, Nagasaki University
| | - Takashi Sawase
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University
| |
Collapse
|
2
|
Morita M, Naito Y, Niki E, Yoshikawa T. Antioxidant action of fermented grain food supplement: Scavenging of peroxyl radicals and inhibition of plasma lipid oxidation induced by multiple oxidants. Food Chem 2017; 237:574-580. [PMID: 28764037 DOI: 10.1016/j.foodchem.2017.05.157] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/09/2017] [Accepted: 05/30/2017] [Indexed: 12/17/2022]
Abstract
Unregulated oxidative modification of biological molecules induced by multiple oxidants in vivo has been implicated in the pathogenesis of various diseases. Accordingly, the role of antioxidants contained in foods in the maintenance of health and prevention of diseases has received much attention. The efficacy of antioxidants against oxidative stress depends on the nature of oxidants. In the present study, the antioxidant action of fermented grain food supplement, Antioxidant Biofactor (AOB), for scavenging peroxyl radical and inhibition of plasma lipid oxidation induced by multiple oxidants was measured. The antioxidant efficacy against lipid oxidation was assessed by the level of lipid hydroperoxides produced using diphenyl-1-pyrenylphosphine, which is not fluorescent per se but reacts with lipid hydroperoxides stoichiometrically to yield highly fluorescent diphenyl-1-pyrenylphosphine oxide. AOB acted as a potent peroxyl radical scavenger and suppressed lipid oxidation induced by peroxyl radical, peroxynitrite, hypochlorite, and singlet oxygen, but not by 15-lipoxygenase.
Collapse
Affiliation(s)
- Mayuko Morita
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; Department of Gastrointestinal Immunology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yuji Naito
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Etsuo Niki
- Department of Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; National Institute of Advanced Industrial Science & Technology, Health Research Institute, Takamatsu 761-0395, Japan.
| | - Toshikazu Yoshikawa
- Department of Gastrointestinal Immunology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| |
Collapse
|
3
|
Yoo T, Ham SA, Hwang JS, Lee WJ, Paek KS, Oh JW, Kim JH, Do JT, Han CW, Kim JH, Seo HG. Peroxisome proliferator-activated receptor δ inhibits Porphyromonas gingivalis lipopolysaccharide-induced activation of matrix metalloproteinase-2 by downregulating NADPH oxidase 4 in human gingival fibroblasts. Mol Oral Microbiol 2015; 31:398-409. [PMID: 26403493 DOI: 10.1111/omi.12137] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2015] [Indexed: 02/02/2023]
Abstract
We investigated the roles of peroxisome proliferator-activated receptor δ (PPARδ) in Porphyromonas gingivalis-derived lipopolysaccharide (Pg-LPS)-induced activation of matrix metalloproteinase 2 (MMP-2). In human gingival fibroblasts (HGFs), activation of PPARδ by GW501516, a specific ligand of PPARδ, inhibited Pg-LPS-induced activation of MMP-2 and generation of reactive oxygen species (ROS), which was associated with reduced expression of NADPH oxidase 4 (Nox4). These effects were significantly smaller in the presence of small interfering RNA targeting PPARδ or the specific PPARδ inhibitor GSK0660, indicating that PPARδ is involved in these events. In addition, modulation of Nox4 expression by small interfering RNA influenced the effect of PPARδ on MMP-2 activity, suggesting a mechanism in which Nox4-derived ROS modulates MMP-2 activity. Furthermore, c-Jun N-terminal kinase and p38, but not extracellular signal-regulated kinase, mediated PPARδ-dependent inhibition of MMP-2 activity in HGFs treated with Pg-LPS. Concomitantly, PPARδ-mediated inhibition of MMP-2 activity was associated with the restoration of types I and III collagen to levels approaching those in HGFs not treated with Pg-LPS. These results indicate that PPARδ-mediated downregulation of Nox4 modulates cellular redox status, which in turn plays a critical role in extracellular matrix homeostasis through ROS-dependent regulation of MMP-2 activity.
Collapse
Affiliation(s)
- T Yoo
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - S A Ham
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - J S Hwang
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - W J Lee
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - K S Paek
- Department of Nursing, Semyung University, Chungbuk, Korea
| | - J W Oh
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - J H Kim
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - J T Do
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| | - C W Han
- Department of Internal Medicine, Pusan National University School of Korean Medicine, Yangsan, Kyeongnam, Korea
| | - J H Kim
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-Do, Korea
| | - H G Seo
- Department of Animal Biotechnology, Konkuk University, Seoul, Korea
| |
Collapse
|
4
|
Park JE, Kim KE, Choi YJ, Park YD, Kwon HJ. The stability of water- and fat-soluble vitamin in dentifrices according to pH level and storage type. Biomed Chromatogr 2015; 30:191-9. [DOI: 10.1002/bmc.3535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 05/08/2015] [Accepted: 06/05/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Jung-Eun Park
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Ki-Eun Kim
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Yong-Jun Choi
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Yong-Duk Park
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Ha-Jeong Kwon
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| |
Collapse
|
5
|
Orihuela-Campos RC, Tamaki N, Mukai R, Fukui M, Miki K, Terao J, Ito HO. Biological impacts of resveratrol, quercetin, and N-acetylcysteine on oxidative stress in human gingival fibroblasts. J Clin Biochem Nutr 2015; 56:220-7. [PMID: 26060353 PMCID: PMC4454086 DOI: 10.3164/jcbn.14-129] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/08/2014] [Indexed: 12/16/2022] Open
Abstract
In periodontitis, production of reactive oxygen species (ROS) by neutrophils induces oxidative stress and deteriorates surrounding tissues. Antioxidants reduce damage caused by ROS and are used to treat diseases involving oxidative stress. This study summarizes the different effects of resveratrol, quercetin, and N-acetylcysteine (NAC) on human gingival fibroblasts (HGFs) under oxidative stress induced by hydrogen peroxide. Real-time cytotoxicity analyses reveals that resveratrol and quercetin enhanced cell proliferation even under oxidative stress. Of the antioxidants tested, resveratrol is the most effective at inhibiting ROS production. HGFs incubated with resveratrol and quercetin up-regulate the transcription of type I collagen gene after 3 h, but only resveratrol sustained this up-regulation for 24 h. A measurement of the oxygen consumption rate (OCR, mitochondrial respiration) shows that resveratrol generates the highest maximal respiratory capacity, followed by quercetin and NAC. Simultaneous measurement of OCR and the extracellular acidification rate (non-mitochondrial respiration) reveals that resveratrol and quercetin induce an increase in mitochondrial respiration when compared with untreated cells. NAC treatment consumes less oxygen and enhances more non-mitochondrial respiration. In conclusion, resveratrol is the most effective antioxidant in terms of real-time cytotoxicity analysis, reduction of ROS production, and enhancement of type I collagen synthesis and mitochondrial respiration in HGFs.
Collapse
Affiliation(s)
- Rita Cristina Orihuela-Campos
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8504, Japan
| | - Naofumi Tamaki
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8504, Japan
| | - Rie Mukai
- Department of Food Science, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8503, Japan
| | - Makoto Fukui
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8504, Japan
| | - Kaname Miki
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8504, Japan
| | - Junji Terao
- Department of Food Science, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8503, Japan
| | - Hiro-O Ito
- Department of Preventive Dentistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto-cho 3-18-15, Tokushima 770-8504, Japan
| |
Collapse
|
6
|
Gómez-Florit M, Monjo M, Ramis JM. Identification of Quercitrin as a Potential Therapeutic Agent for Periodontal Applications. J Periodontol 2014; 85:966-74. [DOI: 10.1902/jop.2014.130438] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
7
|
Irie K, Tomofuji T, Ekuni D, Endo Y, Kasuyama K, Azuma T, Tamaki N, Yoneda T, Morita M. Anti-ageing effects of dentifrices containing anti-oxidative, anti-inflammatory, and anti-bacterial agents (Tomarina®) on gingival collagen degradation in rats. Arch Oral Biol 2014; 59:60-65. [DOI: 10.1016/j.archoralbio.2013.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
8
|
Gingival fibroblasts display reduced adhesion and spreading on extracellular matrix: a possible basis for scarless tissue repair? PLoS One 2011; 6:e27097. [PMID: 22073262 PMCID: PMC3206920 DOI: 10.1371/journal.pone.0027097] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Accepted: 10/10/2011] [Indexed: 11/23/2022] Open
Abstract
Unlike skin, oral gingiva do not scar in response to injury. The basis of this difference is likely to be revealed by comparing the responses of dermal and gingival fibroblasts to fibrogenic stimuli. Previously, we showed that, compared to dermal fibroblasts, gingival fibroblasts are less responsive to the potent pro-fibrotic cytokine TGFβ, due to a reduced production of endothelin-1 (ET-1). In this report, we show that, compared to dermal fibroblasts, human gingival fibroblasts show reduced expression of pro-adhesive mRNAs and proteins including integrins α2 and α4 and focal adhesion kinase (FAK). Consistent with these observations, gingival fibroblasts are less able to adhere to and spread on both fibronectin and type I collagen. Moreover, the enhanced production of ET-1 mRNA and protein in dermal fibroblasts is reduced by the FAK/src inhibitor PP2. Given our previous observations suggesting that fibrotic fibroblasts display elevated adhesive properties, our data suggest that scarring potential may be based, at least in part, on differences in adhesive properties among fibroblasts resident in connective tissue. Controlling adhesive properties may be of benefit in controlling scarring in response to tissue injury.
Collapse
|