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Peron D, Prates RA, Antonio EL, Teixeira ILA, de Oliveira HA, Mansano BSDM, Bergamo A, Almeida DR, Dariolli R, Tucci PJF, Serra AJ. A common oral pathogen Porphyromonas gingivalis induces myocarditis in rats. J Clin Periodontol 2022; 49:506-517. [PMID: 35066916 DOI: 10.1111/jcpe.13595] [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: 06/24/2021] [Revised: 11/22/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022]
Abstract
AIM To evaluate whether Porphyromonas gingivalis (P. gingivalis) inoculation could induce cardiac remodelling in rats. MATERIALS AND METHODS The study was conducted on 33 Wistar rats, which were distributed in the following experimental groups: not inoculated; inoculated with 1 × 108 CFU/ml of bacteria; inoculated with 3 × 108 CFU/ml of bacteria. The animals were inoculated at baseline and on the 15th day of follow-up. Blood collection was performed at baseline and 60 min after each inoculation. At 29 days, the animals were subjected to echocardiography and at 30 days to haemodynamic studies before sacrificing them. RESULTS Impact of the bacteria was more evident in rats that received higher P. gingivalis concentration. Thus, 3 × 108 CFU/ml of bacteria increased the rectal temperature and water content in the lung as well as myocardial necrosis and fibrosis. P. gingivalis induced the intensification of DNA fragmentation and increased the levels of malondialdehyde, oxidized proteins, and macrophage expression in the myocardium. These findings were associated with lower LV isovolumetric relaxation time, +dP/dt, -dP/dt, and higher end-diastolic pressure. CONCLUSIONS P. gingivalis bacteraemia is significantly associated with adverse cardiac remodelling and may play a biological role in the genesis of heart failure.
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Affiliation(s)
- Daniele Peron
- Biophotonics Applied to Health Science, Nove de Julho University, São Paulo, Brazil
| | - Renato Araujo Prates
- Biophotonics Applied to Health Science, Nove de Julho University, São Paulo, Brazil
| | - Ednei Luiz Antonio
- Department of Medicine, Cardiology Division, Federal University of São Paulo, São Paulo, Brazil
| | | | | | | | - Alexandre Bergamo
- Biophotonics Applied to Health Science, Nove de Julho University, São Paulo, Brazil
| | | | - Rafael Dariolli
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,PluriCell Biotech, São Paulo, Brazil
| | | | - Andrey Jorge Serra
- Department of Medicine, Cardiology Division, Federal University of São Paulo, São Paulo, Brazil
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Aoyama N, Kure K, Minabe M, Izumi Y. Increased Heart Failure Prevalence in Patients with a High Antibody Level Against Periodontal Pathogen. Int Heart J 2019; 60:1142-1146. [PMID: 31447467 DOI: 10.1536/ihj.19-010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to assess whether a specific cardiovascular disease was related to an increased antibody level against a periodontal pathogen.A strong association between cardiovascular disease and periodontitis was shown, however, the causal relationship was not proven. Increased inflammatory reaction of patients with periodontitis was a possible factor, which connected periodontal infection and vascular diseases.We assessed medical history, blood data, and periodontal conditions in patients with cardiovascular diseases. Serum IgG antibody titers against major periodontal pathogens and existence of salivary periodontal bacteria were analyzed.In total, 348 subjects were enrolled in this study. The patients who exhibited 10,000 counts/mL or more of salivary Porphyromonas gingivalis were divided into two groups according to the antibody level of the pathogen. Patients with a high antibody level against Porphyromonas gingivalis exhibited a high rate of heart failure compared to the low antibody group. Mean probing pocket depth and clinical attachment level significantly increased in the high antibody group. We found that the high anti-Porphyromonas gingivalis antibody group also experienced enhanced antibody levels against other periodontal bacteria.An increased heart failure prevalence was found in patients with a high antibody level against a major periodontal pathogen, Porphyromonas gingivalis.
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Affiliation(s)
- Norio Aoyama
- Division of Periodontology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University
| | - Keitetsu Kure
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Masato Minabe
- Division of Periodontology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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Periodontal bacteria DNA findings in human cardiac tissue - Is there a link of periodontitis to heart valve disease? Int J Cardiol 2018; 251:74-79. [PMID: 29197463 DOI: 10.1016/j.ijcard.2017.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 05/22/2017] [Accepted: 09/02/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND The aim of the study was to detect periodontal pathogens DNA in atrial and myocardial tissue, and to investigate periodontal status and their connection to cardiac tissue inflammation. METHODS In 30 patients, biopsy samples were taken from the atrium (A) and the ventricle myocardium (M) during aortic valve surgery. The dental examination included the dental and periodontal status (PS) and a collection of a microbiological sample. The detection of 11 periodontal pathogens DNA in oral and heart samples was carried out using PCR. The heart samples were prepared for detecting the LPS-binding protein (LBP), and for inflammation scoring on immunohistochemistry (IHC), comprising macrophages (CD68), LPS-binding protein receptor (CD14), and LBP (big42). RESULTS 28 (93%) patients showed moderate to severe periodontitis. The periodontal pathogens in the oral samples of all patients revealed a similar distribution (3-93%). To a lesser extent and with a different distribution, these bacteria DNA were also detected in atrium and myocardium (3-27%). The LBP was detected in higher amount in atrium (0.22±0.16) versus myocardium (0.13±0.13, p=0.001). IHC showed a higher inflammation score in atrial than myocardial tissue as well as for CD14, CD68 and for LBP. Additional, periodontal findings showed a significant correlation to CD14 and CD68. CONCLUSION The results provide evidence of the occurrence of oral bacteria DNA at the cardiac tissue, with a different impact on atrial and myocardial tissue inflammation. Influence of periodontal findings was identified, but their relevance is not yet distinct. Therefore further clinical investigations with long term implication are warranted.
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Chen TS, Kuo CH, Battsengel S, Pan LF, Day CH, Shen CY, Chung LC, Padma VV, Yao CK, Lin YM, Huang CY. Adipose-derived stem cells decrease cardiomyocyte damage induced by porphyromonas gingivalis endotoxin through suppressing hypertrophy, apoptosis, fibrosis, and MAPK markers. ENVIRONMENTAL TOXICOLOGY 2018; 33:508-513. [PMID: 29383833 DOI: 10.1002/tox.22536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 01/02/2018] [Accepted: 01/06/2018] [Indexed: 06/07/2023]
Abstract
Heart failure is one of the complications related to periodontal disease. In addition to drugs or herbal medicines, stem cell therapy shows potential in the treatment of cardiomyopathy. This study investigates if stem cells exhibit beneficial effects on cardiomyocyte damage induced by porphyromonas gingivalis endotoxin (Pg-LPS). From the experimental results we find that Pg-LPS reduce cardiomyocyte viability via the activation of apoptosis, hypertrophy, fibrosis and MAPK signaling. Pg-LPS damaged cardiomyocytes co-cultured with adipose-derived stem cells (ADSC) increases cardiomyocyte viability through suppressing the pathological markers described above. Further evidence implies that survival marker, IGF1, secreted from ADSC, may play an important role in the Pg-LPS induced protective effect on cardiomyocyte damage.
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Affiliation(s)
- Tung-Sheng Chen
- School of Life Science, National Taiwan Normal University, Taipei, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Sarnai Battsengel
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Intermed Hospital, Chinggis Avenue 41, Khan-Uul district, 15th Khoroo, Uildver, Ulaanbaatar, 17040, Mongolia
| | - Lung-Fa Pan
- Division of Cardiology, Armed Force Taichung General Hospital, Taichung, Taiwan
- Department of Medical Imaging and Radiological Sciences of Central Taiwan, University of Science and Technology, Taichung, Taiwan
| | | | - Chia-Yao Shen
- Department of Nursing, MeiHo University, Pingtung, Taiwan
| | - Li-Chin Chung
- Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy and Science, Tainan County, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore, 641 046, India
| | | | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, District 7, Ho Chi Minh City, 700000, Vietnam
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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Chen T, Battsengel S, Kuo C, Pan L, Lin Y, Yao C, Chen Y, Lin F, Kuo W, Huang C. Stem cells rescue cardiomyopathy induced by
P. gingivalis
‐LPS via miR‐181b. J Cell Physiol 2018; 233:5869-5876. [DOI: 10.1002/jcp.26386] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/04/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Tung‐Sheng Chen
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
| | - Sarnai Battsengel
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
- Intermed Hospital, Chinggis Avenue 41, Khan‐Uul district15th KhorooUildverUlaanbaatarMongolia
| | - Chia‐Hua Kuo
- Department of Sports SciencesUniversity of TaipeiTaipeiTaiwan
| | - Lung‐Fa Pan
- Division of CardiologyArmed Force Taichung General HospitalTaichungTaiwan
- Department of Medical Imaging and Radiological SciencesCentral Taiwan University of Science and TechnologyTaichungTaiwan
| | - Yueh‐Min Lin
- Department of PathologyChanghua Christian HospitalChanghuaTaiwan
- Jen‐Teh Junior College of MedicineNursing and ManagementMiaoliTaiwan
| | - Chun‐Hsu Yao
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Biomedical InformaticsAsia UniversityTaichungTaiwan
| | - Yueh‐Sheng Chen
- School of Life ScienceNational Taiwan Normal UniversityTaipeiTaiwan
- Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Cosmeceutics and Graduate Institute of CosmeceuticsChina Medical UniversityTaichungTaiwan
| | - Feng‐Huei Lin
- Institute of Biomedical Engineering and NanomedicineNational Health Research InstitutesMiaoli CountyTaiwan
- Institute of Biomedical EngineeringNational Taiwan UniversityTaipeiTaiwan
| | - Wei‐Wen Kuo
- Department of Biological Science and TechnologyChina Medical UniversityTaichungTaiwan
| | - Chih‐Yang Huang
- Graduate Institute of Basic Medical ScienceChina Medical UniversityTaichungTaiwan
- Graduate Institute of Chinese Medical ScienceChina Medical UniversityTaichungTaiwan
- Department of Health and Nutrition BiotechnologyAsia UniversityTaichungTaiwan
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Toll-like receptor-2 has a critical role in periodontal pathogen-induced myocardial fibrosis in the pressure-overloaded murine hearts. Hypertens Res 2016; 40:110-116. [DOI: 10.1038/hr.2016.117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 07/13/2016] [Accepted: 07/21/2016] [Indexed: 12/15/2022]
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Sekinishi A, Suzuki JI, Aoyama N, Ogawa M, Watanabe R, Kobayashi N, Hanatani T, Ashigaki N, Hirata Y, Nagai R, Izumi Y, Isobe M. Periodontal pathogen Aggregatibacter actinomycetemcomitans deteriorates pressure overload-induced myocardial hypertrophy in mice. Int Heart J 2012; 53:324-30. [PMID: 23038095 DOI: 10.1536/ihj.53.324] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Although a relationship between periodontitis and myocardial hypertrophy has been reported, the precise mechanism has not been clarified. The purpose of this study was to investigate the association between periodontal infection and myocardial hypertrophy. Transverse aortic constriction (TAC) was performed. Mice were injected with Aggregatibacter actinomycetemcomitans (A.a.) (0.1 mL of 10(8) CFU/mL) in the infected group and PBS in the control group. Echocardiography, histopathology, and immunohistochemistry were performed. Echocardiography indicated that left ventricular fractional shortening had decreased in the infected group compared to the control group on day 28. Heart to body weight ratio increased in the infected group compared to the control group. Histopathologically, A.a.-infected mice showed markedly enhanced cardiac hypertrophy, fibrosis and arteriosclerosis 4 weeks after TAC operation. Immunohistochemistry revealed that expression of MMP-2 in the interstitial tissue was enhanced in the infected group. These results suggested that the periodontal pathogen caused a deterioration of pressure overload-induced myocardial hypertrophy through MMP activation.
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Affiliation(s)
- Asuka Sekinishi
- Department of Periodontology, Tokyo Medical and Dental University, Tokyo, Japan
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Wu HC, Yeh YL, Kuo WW, Huang SK, Kuo WH, Hsieh DJY, Wu CL, Tsai CH, Lee SD, Huang CY. P38 mitogen-activated protein kinase pathways are involved in the hypertrophy and apoptosis of cardiomyocytes induced by Porphyromonas gingivalis conditioned medium. Cell Biochem Funct 2008; 26:246-55. [PMID: 17894423 DOI: 10.1002/cbf.1443] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The surrounding medium of periodontal pathogen Porphyromonas gingivalis (P. gingivalis) increased cardiomyocyte hypertrophy and apoptosis whereas Actinobaeillus actinomycetemcomitans and Prevotella intermedia had no effects. The purpose of this study is to clarify the role of p38 pathway in P. gingivalis conditioned medium-induced H9c2 myocardial cell hypertrophy and apoptosis. DNA fragmentation, cellular morphology, nuclear condensation, p38 protein products, and mitochondrial-dependent apoptotic related proteins in cultured H9c2 myocardial cell were measured by agarose gel electrophoresis, immunofluorescence, DAPI, and western blotting following P. gingivalis conditioned medium and/or pre-administration of SB203580 (p38 inhibitor). The p38 protein products and associated activities in H9c2 cells were both upregulated by P. gingivalis conditioned medium. P. gingivalis conditioned medium increased cellular sizes, DNA fragmentation, nuclear condensation, mitochondrial Bcl2-associated death promoter (Bad), cytosolic cytochrome c (cyt c), and the activated form of caspase-9 proteins in H9c2 cells. The increased cellular sizes, DNA fragmentation, nuclear condensation, Bad, cyt c, and caspase-9 activities of H9c2 cells treated with P. gingivalis conditioned medium were all significantly reduced after pre-administration of SB203580. Our findings suggest that the activity of p38 signal pathway may be initiated by P. gingivalis conditioned medium and further activate mitochondrial-dependent apoptotic pathways leading to cell death in cultured H9c2 myocardial cells.
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Affiliation(s)
- Hsi-Chin Wu
- School of medicine, China Medical University and Hospital, Taichung, Taiwan
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Moshal KS, Zeldin DC, Sithu SD, Sen U, Tyagi N, Kumar M, Hughes WM, Metreveli N, Rosenberger DSE, Singh M, Vacek TP, Rodriguez WE, Ayotunde A, Tyagi SC. Cytochrome P450 (CYP) 2J2 gene transfection attenuates MMP-9 via inhibition of NF-kappabeta in hyperhomocysteinemia. J Cell Physiol 2008; 215:771-81. [PMID: 18181170 DOI: 10.1002/jcp.21356] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Hyperhomocysteinemia (HHcy) is associated with atherosclerotic events involving the modulation of arachidonic acid (AA) metabolism and the activation of matrix metalloproteinase-9 (MMP-9). Cytochrome P450 (CYP) epoxygenase-2J2 (CYP2J2) is abundant in the heart endothelium, and its AA metabolites epoxyeicosatrienoic acids (EETs) mitigates inflammation through NF-kappabeta. However, the underlying molecular mechanisms for MMP-9 regulation by CYP2J2 in HHcy remain obscure. We sought to determine the molecular mechanisms by which P450 epoxygenase gene transfection or EETs supplementation attenuate homocysteine (Hcy)-induced MMP-9 activation. CYP2J2 was over-expressed in mouse aortic endothelial cells (MAECs) by transfection with the pcDNA3.1/CYP2J2 vector. The effects of P450 epoxygenase transfection or exogenous supplementation of EETs on NF-kappabeta-mediated MMP-9 regulation were evaluated using Western blot, in-gel gelatin zymography, electromobility shift assay, immunocytochemistry. The result suggested that Hcy downregulated CYP2J2 protein expression and dephosphorylated PI3K-dependent AKT signal. Hcy induced the nuclear translocation of NF-kappabeta via downregulation of IKbetaalpha (endogenous cytoplasmic inhibitor of NF-kappabeta). Hcy induced MMP-9 activation by increasing NF-kappabeta-DNA binding. Moreover, P450 epoxygenase transfection or exogenous addition of 8,9-EET phosphorylated the AKT and attenuated Hcy-induced MMP-9 activation. This occurred, in part, by the inhibition of NF-kappabeta nuclear translocation, NF-kappabeta-DNA binding and activation of IKbetaalpha. The study unequivocally suggested the pivotal role of EETs in the modulation of Hcy/MMP-9 signal.
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Affiliation(s)
- Karni S Moshal
- Department of Physiology and Biophysics, School of Medicine University of Louisville, Louisville, Kentucky 40202, USA
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Lafaurie GI, Mayorga-Fayad I, Torres MF, Castillo DM, Aya MR, Barón A, Hurtado PA. Periodontopathic microorganisms in peripheric blood after scaling and root planing. J Clin Periodontol 2007; 34:873-9. [PMID: 17850606 DOI: 10.1111/j.1600-051x.2007.01125.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIM The objective of this study was to evaluate the frequency of periodontopathic and other subgingival anaerobic and facultative bacteria in the bloodstream following scaling and root planing (SRP). MATERIAL AND METHODS Forty-two patients with severe generalized chronic periodontitis (GChP) and generalized aggressive periodontitis (GAgP) were included in the study. Four samples of peripheric blood were drawn from the cubital vein at different times: Pre-treatment: immediately before the SRP procedure (T1), immediately after treatment (T2), 15 min. post-treatment (T3) and 30 min. post-treatment (T4). In order to identify the presence of microorganisms in blood, subcultures were conducted under anaerobic conditions. RESULTS 80.9% of the patients presented positive cultures after SRP and it occurred more frequently immediately after treatment; however, 19% of the patients still had microorganisms in the bloodstream 30 min. after the procedure. The periodontopathic microorganisms more frequently identified were Porphyromonas gingivalis and Micromonas micros. Campylobacter spp., Eikenella corrodens, Tannerella forsythensis, Fusobacterium spp. and Prevotella intermedia were isolated less often. Actinomyces spp. were also found frequently during bacteraemia after SRP. CONCLUSIONS SRP induced bacteraemia associated with anaerobic bacteria, especially in patients with periodontal disease.
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Affiliation(s)
- Gloria Inés Lafaurie
- Instituto UIBO (Unidad de Investigación Básica Oral), Universidad El Bosque, Bogotá, Colombia.
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Guimarães MR, Nassar PO, Andia DC, Nassar CA, Spolidorio DMP, Rossa C, Spolidorio LC. Protective effects of Tacrolimus, a calcineurin inhibitor, in experimental periodontitis in rats. Arch Oral Biol 2007; 52:882-8. [PMID: 17367747 DOI: 10.1016/j.archoralbio.2007.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2006] [Revised: 01/23/2007] [Accepted: 02/04/2007] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Periodontitis is a well-appreciated example of leukocyte-mediated bone loss and inflammation with pathogenic features similar to those observed in other inflammatory diseases, such as arthritis. Since Tacrolimus, is an immunomodulatory drug used for the treatment of some cases of arthritis, we hypothesized that it may modulate periodontal disease. DESIGN Using a murine model of ligature-induced periodontal disease, we assessed the effects of daily administrations of Tacrolimus (1mg/kg body weight) on bone loss, enzymatic (myeloperoxidase) analysis, differential white blood cells counts, airpouch exudate and cytokine expression for 5-30 days. RESULTS Radiographic, enzymatic (myeloperoxidase) and histological analysis revealed that Tacrolimus reduced the severity of periodontitis. More specifically, Tacrolimus suppressed the expression of serum interleukin (IL-1beta), tumour necrosis factor (TNF-alpha), IL-6, airpouch exudate PGE(2) and leukocytosis usually observed after the induction of periodontitis. Tacrolimus treatment in periodontitis-induced rats conferred protection against the inflammation-induced tissue and bone loss associated with periodontitis, through a mechanism involving IL-1beta, TNF-alpha and IL-6. CONCLUSIONS The effects of Tacrolimus on periodontal disease pathogenesis may provide clues to a novel approach to host modulation therapy in destructive periodontal disease.
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Affiliation(s)
- M R Guimarães
- Department of Physiology and Pathology, Dental School of Araraquara (UNESP), State University of São Paulo, Araraquara, São Paulo, Brazil
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12
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Huang Y, Lu MQ, Li H, Xu C, Yi SH, Chen GH. Occurrence of cGMP/nitric oxide-sensitive store-operated calcium entry in fibroblasts and its effect on matrix metalloproteinase secretion. World J Gastroenterol 2006; 12:5483-9. [PMID: 17006985 PMCID: PMC4088230 DOI: 10.3748/wjg.v12.i34.5483] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To examine the existence of Nitric oxide/cGMP sensitive store-operated Ca2+ entry in mouse fibroblast NIH/3T3 cells and its influence on matrix metalloproteinase (MMP) production and adhesion ability of fibroblasts.
METHODS: NIH/3T3 cells were cultured. Confocal laser scanning microscopy was used to examine the existence of thapsigargin-induced store-operated Ca2+ entry in fibroblasts. Gelatin zymography and semiquantitative reverse transcriptase-polymerase chain reaction (RT-PCR) were employed to detect the involvement of [Ca2+]i and NO/cGMP in MMP secretion. The involvement of NO/cGMP-sensitive Ca2+ entry in adhesion was determined using matrigel-coated culture plates.
RESULTS: 8-bromo-cGMP inhibited the thapsigargin-induced Ca2+ entry in 3T3 cells. The cGMP-induced inhibition was abolished by an inhibitor of protein kinase G, KT5823 (1μmol/L). A similar effect on the Ca2+ entry was observed in 3T3 cells in response to a NO donor, (±)-S-nitroso-N-acetylpenicillamine (SNAP). The inhibitory effect of SNAP on the thapsigargin-induced Ca2+ entry was also observed, indicating NO/cGMP-regulated Ca2+ entry in 3T3 cells. Results of gelatin zymography assay showed that addition of extracellular Ca2+ concentration induced MMP release and activation in a dose-dependent manner. RT-PCR also showed that cGMP and SNAP reduced the production of MMP mRNA in 3T3 cells. Experiments investigating adhesion potentials demonstrated that cGMP and SNAP could upgrade 3T3 cell attachment rate to the matrigel-coated culture plates.
CONCLUSION: NO/cGMP sensitive store-operated Ca2+ entry occurs in fibroblasts, and attenuates their adhesion potentials through its influence on MMP secretion.
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Affiliation(s)
- Yong Huang
- Liver Transplantation Centre, the Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, Guangdong Province, China
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