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Machado RA, de Andrade RS, Pêgo SPB, Krepischi ACV, Coletta RD, Martelli-Júnior H. New evidence of genetic heterogeneity causing hereditary gingival fibromatosis and ALK and CD36 as new candidate genes. J Periodontol 2023; 94:108-118. [PMID: 35665929 DOI: 10.1002/jper.22-0219] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Hereditary gingival fibromatosis (HGF) is an uncommon genetic condition characterized by slow but progressive fibrous, non-hemorrhagic, and painless growth of the gingival tissues due to the increased deposition of collagen and other macromolecules of the extracellular matrix. HGF occurs in approximately 1:750,000 individuals and can exhibit dominant or recessive inheritance. To date, five loci (2p21-p22, 2p22.3-p23.3, 4q12, 5q13-q22, and 11p15) and three genes [REST (RE1-silencing transcription factor), SOS1 (Son-of-Sevenless-1), and ZNF862 (zinc finger protein 862 gene)] have been associated with HGF. Here, our study aimed to identify genetic variants associated with HGF by applying whole-exome sequencing (WES) and bioinformatics analyses. METHODS Thirteen Brazilian individuals with HGF and nine relatives without HGF from four unrelated families were chosen for our investigation. Blood collected from the patients and their relatives were used for WES. Five Web-available tools, namely, CADD, PolyPhen, SIFT, Mutation Taster, and Franklin's algorithms, were used to predict protein damage. RESULTS WES revealed pathogenic variants affecting the known HGF genes REST (c.1491_1492delAG) and SOS1 (c.3265_3266insTAAC) in two families. Additionally, potentially pathogenic variants segregating in the other two families were mapped to ALK receptor tyrosine kinase gene (ALK) (c.361C > T) and to collagen type I receptor and thrombospondin receptor gene (CD36) (c.1133G > T). CONCLUSION Our findings reinforce the high genetic heterogeneity of HGF, identifying new variants in HGF known genes (REST and SOS1) and ALK and CD36 as new genes that cause HGF.
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Affiliation(s)
- Renato Assis Machado
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil.,Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, São Paulo, Brazil
| | - Rodrigo Soares de Andrade
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | - Sabina Pena Borges Pêgo
- Stomatology Clinic, Dental School, State University of Montes Claros (Unimontes), Montes Claros, Minas Gerais, Brazil
| | - Ana Cristina Victorino Krepischi
- Department of Genetics and Evolutionary Biology, Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo (IB/USP), São Paulo, Brazil
| | - Ricardo D Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil.,Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Hercílio Martelli-Júnior
- Stomatology Clinic, Dental School, State University of Montes Claros (Unimontes), Montes Claros, Minas Gerais, Brazil.,Center for Rehabilitation of Craniofacial Anomalies, Dental School, University of José Rosario Vellano (Unifenas), Alfenas, Minas Gerais, Brazil
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Jazaeri M, Torkzaban P, Afshar S, Najafi-Vosough R, Arany P, Gholami L. Comparison of Pulsed and Continuous Wave Diode Laser at 940 nm on the Viability and Migration of Gingival Fibroblasts. Photochem Photobiol 2022; 99:1003-1009. [PMID: 36086909 DOI: 10.1111/php.13711] [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: 04/15/2022] [Accepted: 09/07/2022] [Indexed: 11/28/2022]
Abstract
Gingival fibroblasts have critical roles in oral wound healing. Photobiomodulation (PBM) has been shown to promote mucosal healing and is now recommended for managing oncotherapy-associated oral mucositis. This study examined the effects of the emission mode of a 940 nm diode laser on the viability and migration of human gingival fibroblasts. Cells were cultured in a routine growth media and treated with PBM (average power 0.1 W/cm2 , average fluence 3 J/cm2 , every 12h for 6 sessions) in one continuous wave (CW) and two pulsing settings with 20 % and 50 % duty cycles. Cell viability was assessed using MTT, and digital imaging quantified cell migration. After 48 and 72 hours, all treatment groups had significantly higher viability (n = 6, p < 0.05) compared to the control. The highest viability was seen in the pulsed (20% duty cycle) group at the 72-hour time point. PBM improved fibroblast migration in all PBM-treated groups, but differences were not statistically significant (n = 2, p > 0.05). PBM treatments can promote cell viability in both continuous and pulsed modes. Further studies are needed to elucidate the optimal setting for PBM-evoked responses for its rationalized use in promoting specific phases of oral wound healing.
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Affiliation(s)
- Marzieh Jazaeri
- Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parviz Torkzaban
- Department of Periodontics, School of Dentistry, Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Saeid Afshar
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Roya Najafi-Vosough
- Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Praveen Arany
- Oral Biology, Surgery, Biomedical Engineering, University at Buffalo, NY, USA
| | - Leila Gholami
- Department of Periodontics, School of Dentistry, Dental Implants Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
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3
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Wu J, Chen D, Huang H, Luo N, Chen H, Zhao J, Wang Y, Zhao T, Huang S, Ren Y, Zhai T, Sun W, Li H, Li W. A novel gene ZNF862 causes hereditary gingival fibromatosis. eLife 2022; 11:66646. [PMID: 35142290 PMCID: PMC8856651 DOI: 10.7554/elife.66646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/09/2022] [Indexed: 11/18/2022] Open
Abstract
Hereditary gingival fibromatosis (HGF) is the most common genetic form of gingival fibromatosis which is featured as a localized or generalized overgrowth of gingivae. Currently two genes (SOS1 and REST), as well as four loci (2p22.1, 2p23.3–p22.3, 5q13–q22, and 11p15), have been identified as associated with HGF in a dominant inheritance pattern. Here, we report 13 individuals with autosomal-dominant HGF from a four-generation Chinese family. Whole-exome sequencing followed by further genetic co-segregation analysis was performed for the family members across three generations. A novel heterozygous missense mutation (c.2812G > A) in zinc finger protein 862 gene (ZNF862) was identified, and it is absent among the population as per the Genome Aggregation Database. The functional study supports a biological role of ZNF862 for increasing the profibrotic factors particularly COL1A1 synthesis and hence resulting in HGF. Here, for the first time we identify the physiological role of ZNF862 for the association with the HGF.
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Affiliation(s)
- Juan Wu
- Department of Periodontology, Medical School of Nanjing University, Nanjing, China
| | - Dongna Chen
- Clinical research, BGI Genomics, Shenzhen, China
| | - Hui Huang
- Clinical research, BGI Genomics, Shenzhen, China
| | - Ning Luo
- Department of Periodontology, Medical School of Nanjing University, Nanjing, China
| | | | - Junjie Zhao
- Department of Periodontology, Medical School of Nanjing University, Nanjing, China
| | - Yanyan Wang
- Clinical research, BGI Genomics, Shenzhen, China
| | - Tian Zhao
- Department of Periodontology, Medical School of Nanjing University, shenzhen, China
| | - Siyuan Huang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Yang Ren
- Department of Periodontology, Medical School of Nanjing University, Nanjing, China
| | - Teng Zhai
- Clinical research, BGI Genomics, shenzhen, China
| | - Weibin Sun
- Department of Periodontology, Medical School of Nanjing University, shenzhen, China
| | - Houxuan Li
- Department of Periodontology, Medical School of Nanjing University, Nanjing, China
| | - Wei Li
- Clinical Research, BGI Genomics, Shen zhen, China
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4
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Strzelec K, Dziedzic A, Łazarz-Bartyzel K, Grabiec AM, Gutmajster E, Kaczmarzyk T, Plakwicz P, Gawron K. Clinics and genetic background of hereditary gingival fibromatosis. Orphanet J Rare Dis 2021; 16:492. [PMID: 34819125 PMCID: PMC8611899 DOI: 10.1186/s13023-021-02104-9] [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: 05/09/2021] [Accepted: 11/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hereditary gingival fibromatosis (HGF) is a rare condition characterized by slowly progressive overgrowth of the gingiva. The severity of overgrowth may differ from mild causing phonetic and masticatory issues, to severe resulting in diastemas or malposition of teeth. Both, autosomal-dominant and autosomal-recessive forms of HGF are described. The aim of this review is a clinical overview, as well as a summary and discussion of the involvement of candidate chromosomal regions, pathogenic variants of genes, and candidate genes in the pathogenesis of HGF. The loci related to non-syndromic HGF have been identified on chromosome 2 (GINGF, GINGF3), chromosome 5 (GINGF2), chromosome 11 (GINGF4), and 4 (GINGF5). Of these loci, pathogenic variants of the SOS-1 and REST genes inducing HGF have been identified in the GINGF and the GINGF5, respectively. Furthermore, among the top 10 clusters of genes ranked by enrichment score, ATP binding, and fibronectin encoding genes were proposed as related to HGF. CONCLUSION The analysis of clinical reports as well as translational genetic studies published since the late'90s indicate the clinical and genetic heterogeneity of non-syndromic HGF and point out the importance of genetic studies and bioinformatics of more numerous unrelated families to identify novel pathogenic variants potentially inducing HGF. This strategy will help to unravel the molecular mechanisms as well as uncover specific targets for novel and less invasive therapies of this rare, orphan condition.
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Affiliation(s)
- Karolina Strzelec
- Department of Molecular Biology and Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medykow 18, 40-752, Katowice, Poland
| | - Agata Dziedzic
- Department of Molecular Biology and Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medykow 18, 40-752, Katowice, Poland
| | - Katarzyna Łazarz-Bartyzel
- Department of Periodontology and Oral Medicine, Medical College, Jagiellonian University, Kraków, Poland
| | - Aleksander M Grabiec
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Ewa Gutmajster
- Department of Molecular Biology and Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medykow 18, 40-752, Katowice, Poland
| | - Tomasz Kaczmarzyk
- Department of Periodontology and Oral Medicine, Medical College, Jagiellonian University, Kraków, Poland.,Department of Oral Surgery, Medical College, Jagiellonian University, Kraków, Poland
| | - Paweł Plakwicz
- Department of Periodontology and Oral Diseases, Faculty of Dentistry, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Gawron
- Department of Molecular Biology and Genetics, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Medykow 18, 40-752, Katowice, Poland.
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5
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Chen JT, Lin CH, Huang HW, Wang YP, Kao PC, Yang TP, Wang SK. Novel REST Truncation Mutations Causing Hereditary Gingival Fibromatosis. J Dent Res 2021; 100:868-874. [PMID: 33719663 DOI: 10.1177/0022034521996620] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hereditary gingival fibromatosis (HGF) is a rare genetic disorder featured by nonsyndromic pathological overgrowth of gingiva. The excessive gingival tissues can cause dental, masticatory, and phonetic problems, which impose severe functional and esthetic burdens on affected individuals. Due to its high recurrent rate, patients with HGF have to undergo repeated surgical procedures of gingival resection, from childhood to adulthood, which significantly compromises their quality of life. Unraveling the genetic etiology and molecular pathogenesis of HGF not only gains insight into gingival physiology and homeostasis but also opens avenues for developing potential therapeutic strategies for this disorder. Recently, mutations in REST (OMIM *600571), encoding a transcription repressor, were reported to cause HGF (GINGF5; OMIM #617626) in 3 Turkish families. However, the functions of REST in gingival homeostasis and pathogenesis of REST-associated HGF remain largely unknown. In this study, we characterized 2 HGF families and identified 2 novel REST mutations, c.2449C>T (p.Arg817*) and c.2771_2793dup (p.Glu932Lysfs*3). All 5 mutations reported to date are nonsenses or frameshifts in the last exon of REST and would presumably truncate the protein. In vitro reporter gene assays demonstrated a partial or complete loss of repressor activity for these truncated RESTs. When coexpressed with the full-length protein, the truncated RESTs impaired the repressive ability of wild-type REST, suggesting a dominant negative effect. Immunofluorescent studies showed nuclear localization of overexpressed wild-type and truncated RESTs in vitro, indicating preservation of the nuclear localization signal in shortened proteins. Immunohistochemistry demonstrated a comparable pattern of ubiquitous REST expression in both epithelium and lamina propria of normal and HGF gingival tissues despite a reduced reactivity in HGF gingiva. Results of this study confirm the pathogenicity of REST truncation mutations occurring in the last exon causing HGF and suggest the pathosis is caused by an antimorphic (dominant negative) disease mechanism.
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Affiliation(s)
- J T Chen
- Graduate Institute of Clinical Dentistry, National Taiwan University School of Dentistry, Taipei City, Taiwan.,Department of Dentistry, National Taiwan University Hospital, Taipei City, Taiwan
| | - C H Lin
- Department of Dentistry, National Taiwan University School of Dentistry, Taipei City, Taiwan
| | - H W Huang
- Genomics Research Center, Academia Sinica, Taipei City, Taiwan
| | - Y P Wang
- Department of Dentistry, National Taiwan University Hospital, Taipei City, Taiwan.,Department of Dentistry, National Taiwan University School of Dentistry, Taipei City, Taiwan
| | - P C Kao
- Department of Dentistry, National Taiwan University School of Dentistry, Taipei City, Taiwan
| | - T P Yang
- Dr. Lawrence Dental Clinic, Kaohsiung City, Taiwan
| | - S K Wang
- Department of Dentistry, National Taiwan University School of Dentistry, Taipei City, Taiwan.,Department of Pediatric Dentistry, National Taiwan University Children's Hospital, Taipei City, Taiwan
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6
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Resende EP, Xavier MT, Matos S, Antunes AC, Silva HC. Nonsyndromic hereditary gingival fibromatosis: Characterization of a family and review of genetic etiology. SPECIAL CARE IN DENTISTRY 2020; 40:320-328. [PMID: 32413193 DOI: 10.1111/scd.12458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/01/2020] [Accepted: 03/18/2020] [Indexed: 11/29/2022]
Abstract
Our aim is to describe a family with a nonsyndromic form of hereditary gingival fibromatosis (HGF) and discuss genetic characteristics of this rare disease by reviewing reported cases. A mother and three descendants were diagnosed with HGF. There was marked variable expressivity: from severe generalized gingival overgrowth in a 16-year-old boy (the proband) to minimal manifestations in the mother. The proband was submitted to gingivectomy and gingivoplasty. In younger siblings, the disease remained stable for 5 years, suggesting that clinical surveillance is a good option. The diagnosis was supported by histopathological examination. Analysis of this family and literature-reported cases supports that HGF most frequently shows an autosomal dominant inheritance with high penetrance and variable expressivity. Neomutations and gonadal mosaicism do not seem to be a rare event. Although five loci have been mapped by linkage analysis, only two genes, SOS1 and REST, were identified in four families.
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Affiliation(s)
- Elisabete Peres Resende
- Faculty of Medicine, Dentistry Department, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, Institute of Medical Genetics, University of Coimbra, Coimbra, Portugal
| | - Maria Teresa Xavier
- Faculty of Medicine, Dentistry Department, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, Institute of Pediatric and Preventive Dentistry, University of Coimbra, Coimbra, Portugal
| | - Sérgio Matos
- Faculty of Medicine, Dentistry Department, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, Institute of Periodontology, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, Center for Innovation and Research in Oral Sciences (CIROS), University of Coimbra, Coimbra, Portugal
| | - Ana C Antunes
- Faculty of Medicine, Dentistry Department, University of Coimbra, Coimbra, Portugal
| | - Henriqueta Coimbra Silva
- Faculty of Medicine, Institute of Medical Genetics, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal
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7
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Gao H, Liang J, Xia X, Deng Z, Zhang Z. Unusual clinical and histologic findings in a child with mixed dentition with hereditary gingival fibromatosis: a case report. Transl Pediatr 2020; 9:74-80. [PMID: 32154139 PMCID: PMC7036643 DOI: 10.21037/tp.2019.12.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hereditary gingival fibromatosis (HGF) is characterized by an accumulation of extracellular matrix resulting in a fibrotic enlargement of keratinized gingiva. The goal of this article is to describe one kindred affected with HGF and discuss the diagnosis, treatment, recurrence risk and histopathology features of the proband with mixed dentition. An 8-year-old boy reported with a chief complaint of gingival enlargement. A series of examinations were performed to make a diagnosis and family histories of the patient were recorded. Surgical therapy included gingivectomy and gingivoplasty technique were performed for the proband to remove excess gingiva. Collagen bundles in the permanent incisors area were prevalently significantly bulkier than that of the deciduous teeth area and the arrangement was much more regular. Microscopic evaluation revealed that epithelial hyperplasia was severe in tissue with intense inflammation, whereas tissue with mild inflammation showed only long and deep epithelial papillae. The patient was placed on a 3-month recall schedule and didn't demonstrate any recurrence of gingival overgrowth over a 1-year follow-up period. The study revealed that the eruption of permanent teeth played an important role in accelerating gingival hyperplasia. For the first time, it was confirmed from histological perspective that inflammation in gingival tissue was crucial to the gingival overgrowth of HGF.
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Affiliation(s)
- Han Gao
- Department of Oral and Maxillofacial Surgery, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China.,Zhuhai Stomatological Hospital, Zhuhai 519000, China
| | - Jun Liang
- Department of Oral and Maxillofacial Surgery, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Xiaoxue Xia
- Department of Oral and Maxillofacial Surgery, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Zhaoming Deng
- Department of Oral and Maxillofacial Surgery, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - Zhaoqiang Zhang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
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8
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T helper 1 and 2 stimuli induce distinct phenotypes in gingival fibroblasts. Arch Oral Biol 2019; 102:171-178. [DOI: 10.1016/j.archoralbio.2019.04.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 02/08/2023]
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Gawron K, Łazarz-Bartyzel K, Kowalska A, Bereta G, Nowakowska Z, Plakwicz P, Potempa J, Fertala A, Chomyszyn-Gajewska M. Fibroblasts from recurrent fibrotic overgrowths reveal high rate of proliferation in vitro - findings from the study of hereditary and idiopathic gingival fibromatosis. Connect Tissue Res 2019; 60:29-39. [PMID: 30231645 DOI: 10.1080/03008207.2018.1517758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Investigate the content of fibrotic fibrils in gingival tissue and the proliferation of fibroblasts collected from recurrent and non-recurrent hereditary gingival fibromatosis (HGF) and idiopathic gingival fibromatosis (IGF). METHODS Gingival biopsies were collected from HGF (n = 3) and IGF (n = 3) donors with recurrent and non-recurrent gingival overgrowths and from a control group (Ctrl, n = 3). Hematoxylin staining was performed to evaluate the histomorphology of gingival tissue. Heidenhain's AZAN trichrome staining served for visualization of fibrotic fibrils in gingiva. Quantitative analysis of the content of fibrotic fibrils in gingival tissue was performed using a polarized light microscope. Proliferation was evaluated at 24 h, 48 h, and 72 h in fibroblast cultures using a cell proliferation ELISA assay based on 5-bromo-2'-deoxyuridine (BrdU). RESULTS Numerous blood vessels and fibroblasts were observed in recurrent overgrowths, whereas moderate blood vessels and moderate to scanty fibroblasts were detected in non-recurrent overgrowths. Heidenhain's staining revealed numerous collagen fibers in both recurrent and non-recurrent overgrowths. Quantitative analysis in a polarizing microscope showed significant accumulation of fibrotic fibrils exclusively in the overgrowths with the recurrence. In all time-points, increased proliferation of cells from all recurrent overgrowths was observed, but not from overgrowths which do not reoccur. CONCLUSIONS The study revealed that recurrent gingival overgrowths consist of highly fibrotic and dense connective tissue with numerous blood vessels and abundant fibroblasts. We also demonstrated that unlike fibroblasts derived from overgrowths, which did not present recurrence, fibroblasts derived from highly fibrotic and recurrent overgrowths maintain high rate of proliferation in vitro.
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Affiliation(s)
- Katarzyna Gawron
- a Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology , Jagiellonian University , Krakow , Poland
| | - Katarzyna Łazarz-Bartyzel
- b Department of Periodontology and Oral Medicine, Medical College , Jagiellonian University , Krakow , Poland
| | - Anna Kowalska
- a Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology , Jagiellonian University , Krakow , Poland
| | - Grzegorz Bereta
- a Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology , Jagiellonian University , Krakow , Poland
| | - Zuzanna Nowakowska
- a Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology , Jagiellonian University , Krakow , Poland
| | - Paweł Plakwicz
- c Department of Periodontology , Medical University of Warsaw , Warsaw , Poland
| | - Jan Potempa
- a Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology , Jagiellonian University , Krakow , Poland.,d Department of Oral Immunology and Infectious Diseases , School of Dentistry, University of Louisville , Louisville , KY , USA
| | - Andrzej Fertala
- e Department of Orthopaedic Surgery , Sidney Kimmel Medical College, Thomas Jefferson University , Philadelphia , PA , USA
| | - Maria Chomyszyn-Gajewska
- b Department of Periodontology and Oral Medicine, Medical College , Jagiellonian University , Krakow , Poland
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10
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Yuan B, Raucci MG, Fan Y, Zhu X, Yang X, Zhang X, Santin M, Ambrosio L. Injectable strontium-doped hydroxyapatite integrated with phosphoserine-tethered poly(epsilon-lysine) dendrons for osteoporotic bone defect repair. J Mater Chem B 2018; 6:7974-7984. [PMID: 32255042 DOI: 10.1039/c8tb02526f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The control of the inflammatory response induced by the implantation of foreign biomaterials is fundamental in determining tissue healing. It has been shown that the activation of specific macrophage pathways upon contact with a biomaterial can lead either to a chronic inflammation preventing a physiological tissue repair or to an improved tissue healing. In the case of bone repair, calcium phosphate cements with good osteoconductivity properties have been successfully applied in bone defect filling and repair, but poor handling properties, insufficient viscous flow and unmatched degradation rate are still problems that remain unsolved. In this study, a strontium-doped hydroxyapatite (HA) gel was modified by integrating branched poly(epsilon-lysine) dendrons with third-generation branches exposing phosphoserine (SrHA/G3-K PS). The interaction of this material with macrophages was investigated in vitro, focusing on the secretion and gene expression of specific pro-inflammatory cytokines. Our results showed that the addition of strontium and G3-K PS to HA sol-gel could down-regulate the gene expression of inflammatory factors such as IL-1β, TNF-α and MCP-1, while increasing the gene expression of IL-6, a cytokine known for its osteogenic effect. These results were further confirmed by ELISA test of the respective protein concentrations. When exposed to supernatants of macrophage culture in the presence of strontium and G3-K PS, osteoblast viability was promoted with elevated osteogenic gene markers, in terms of OPG, ALP, OCN and COL-I. In vivo implantation experiments using an osteoporotic rat model with bone defect further confirmed that the addition of G3-K PS to HA could dramatically promote new bone regeneration. Although the introduction of strontium improved the degradation properties of the injectable materials, no positive effect on promoting in vivo bone regeneration was observed.
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Affiliation(s)
- Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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11
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Gawron K, Ochała-Kłos A, Nowakowska Z, Bereta G, Łazarz-Bartyzel K, Grabiec AM, Plakwicz P, Górska R, Fertala A, Chomyszyn-Gajewska M, Potempa J. TIMP-1 association with collagen type I overproduction in hereditary gingival fibromatosis. Oral Dis 2018; 24:1581-1590. [PMID: 29989318 DOI: 10.1111/odi.12938] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 06/26/2018] [Accepted: 07/04/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVES To investigate the processes associated with the excessive production of collagen I in hereditary gingival fibromatosis (HGF). MATERIALS AND METHODS Three HGF subjects and five controls were enrolled in the study. Histomorphological and immunohistological analyses were performed on gingival tissues. The expression of heat-shock protein 47 (HSP47), collagen I, transforming growth factor-β1 (TGF-β1), connective tissue growth factor (CTGF), matrix metalloproteinase-1 (MMP-1) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) by gingival fibroblasts isolated from HGF and controls was analysed using qRT-PCR, Western blotting and ELISA. RESULTS Considerable accumulation of fibrotic fibrils and increased synthesis of HSP47 were noted in HGF gingival tissues. The synthesis of collagen I, HSP47, TGF-β1, CTGF and TIMP-1 was significantly elevated in HGF gingival fibroblasts compared with controls, while the production of MMP-1 was decreased. CONCLUSIONS We report that fibrosis in HGF gingival tissues is associated with increased synthesis of HSP47. This finding was confirmed by an in vitro study, where excessive production of collagen I was associated with increased synthesis of HSP47, TGF-β1 and CTGF by HGF gingival fibroblasts. Moreover, the shift in the TIMP-1/MMP-1 ratio identifies increased synthesis of TIMP-1 as one of the processes associated with collagen I overproduction in HGF fibroblasts.
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Affiliation(s)
- Katarzyna Gawron
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Anna Ochała-Kłos
- Department of Anatomy, Medical College, Jagiellonian University, Krakow, Poland
| | - Zuzanna Nowakowska
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Grzegorz Bereta
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Katarzyna Łazarz-Bartyzel
- Department of Periodontology and Oral Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Aleksander M Grabiec
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Paweł Plakwicz
- Department of Periodontology, Medical University of Warsaw, Warsaw, Poland
| | - Renata Górska
- Department of Periodontology, Medical University of Warsaw, Warsaw, Poland
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Maria Chomyszyn-Gajewska
- Department of Periodontology and Oral Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Jan Potempa
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.,Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, Kentucky, USA
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12
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Groeneveld ME, Meekel JP, Rubinstein SM, Merkestein LR, Tangelder GJ, Wisselink W, Truijers M, Yeung KK. Systematic Review of Circulating, Biomechanical, and Genetic Markers for the Prediction of Abdominal Aortic Aneurysm Growth and Rupture. J Am Heart Assoc 2018; 7:JAHA.117.007791. [PMID: 29960996 PMCID: PMC6064909 DOI: 10.1161/jaha.117.007791] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The natural course of abdominal aortic aneurysms (AAA) is growth and rupture if left untreated. Numerous markers have been investigated; however, none are broadly acknowledged. Our aim was to identify potential prognostic markers for AAA growth and rupture. METHODS AND RESULTS Potential circulating, biomechanical, and genetic markers were studied. A comprehensive search was conducted in PubMed, Embase, and Cochrane Library in February 2017, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Study selection, data extraction, and methodological quality assessment were conducted by 2 independent researchers. Plausibility of markers was based on the amount of publications regarding the marker (more than 3), pooled sample size (more than 100), bias risk and statistical significance of the studies. Eighty-two studies were included, which examined circulating (n=40), biomechanical (n=27), and genetic markers (n=7) and combinations of markers (n=8). Factors with an increased expansion risk included: AAA diameter (9 studies; n=1938; low bias risk), chlamydophila pneumonia (4 studies; n=311; medium bias risk), S-elastin peptides (3 studies; n=205; medium bias risk), fluorodeoxyglucose uptake (3 studies; n=104; medium bias risk), and intraluminal thrombus size (5 studies; n=758; medium bias risk). Factors with an increased rupture risk rupture included: peak wall stress (9 studies; n=579; medium bias risk) and AAA diameter (8 studies; n=354; medium bias risk). No meta-analysis was conducted because of clinical and methodological heterogeneity. CONCLUSIONS We identified 5 potential markers with a prognostic value for AAA growth and 2 for rupture. While interpreting these data, one must realize that conclusions are based on small sample sizes and clinical and methodological heterogeneity. Prospective and methodological consonant studies are strongly urged to further study these potential markers.
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Affiliation(s)
- Menno E Groeneveld
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands.,Department of Physiology, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Jorn P Meekel
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands.,Department of Physiology, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Sidney M Rubinstein
- Department of Health Sciences and Amsterdam Public Health research institute, VU University, Amsterdam, The Netherlands
| | - Lisanne R Merkestein
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Geert Jan Tangelder
- Department of Physiology, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Willem Wisselink
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Maarten Truijers
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
| | - Kak Khee Yeung
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands .,Department of Physiology, Amsterdam Cardiovascular Sciences (ACS), VU University Medical Center (VUmc), Amsterdam, The Netherlands
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13
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Hazzaa HH, Gouda OM, Kamal NM, Ali SAM, El Shiekh MAM, Tawfik MM. Expression of CD163 in hereditary gingival fibromatosis: A possible association with TGF-β1. J Oral Pathol Med 2018; 47:286-292. [PMID: 29325232 DOI: 10.1111/jop.12679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Although several studies have discussed some of the molecular and cellular changes associated with hereditary gingival fibromatosis (HGF), its pathogenesis is still largely unclear. This study was directed to detect and outline the degree of relationship between the immunophenotyped macrophages (M2) expressing CD163 and TGF-β1 in patients with gingival overgrowth due to HGF. METHODS Biopsies from 20 patients suffering from HGF and 20 normal control subjects were harvested, histologically and immunohistochemically stained then, analyzed and statistically compared and correlated for CD163 immunoexpression and TGF-β1. RESULTS All HGF specimens expressed TGF-β1 by most of the connective tissue fibroblasts, with statistically high significant mean of area % (2.61 ± 0.41) compared to normal controls (0.11 ± 0.06; P = .001). All control specimens revealed negligible CD163 immunostaining of the few inflammatory cells found with a mean area of % (0.69 ± 0.12), while the specimens of HGF cases showed statistically significant higher CD163 expression (3.39 ± 0.75) at (P = .007). A statistically significant higher mean % of M2 cells expressing CD163 in relation to the total number of the inflammatory cells was revealed in HGF (34.46 ± 2.04) compared to the control group (16.36 ± 2.39; P-value ≤ .05). Moderate correlation between CD163 and TGF-β1 was detected in HGF (r = .451; P-value < .05). CONCLUSIONS CD163 and TGF-β1 were clearly expressed in HGF cases compared to healthy control patients, with significant correlation. In HGF, the increase in CD 163-positive cells was specific and not dependent on the chronic gingival inflammation.
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Affiliation(s)
- Hala H Hazzaa
- Department of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, Al Azhar University (Girls Branch), Cairo, Egypt.,Department of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, Nahda University, Beni-Suef, Egypt
| | - Ossama M Gouda
- Department of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, Nahda University, Beni-Suef, Egypt.,Department of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, Suez Canal University, Ismailea, Egypt.,Nahda University, Beni-Suef, Egypt
| | - Naglaa M Kamal
- Department of Oral Patholology, Faculty of Oral and Dental Medicine, Ahram Canadian University, 6th of October, Egypt
| | - Shereen Abdel Moula Ali
- Department of Oral Medicine and Periodontology, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Marwa A M El Shiekh
- Department of Oral Biology, Faculty of Dentistry, Al Azhar University (Girls Branch), Cairo, Egypt
| | - Marwa M Tawfik
- Department of Oral Medicine and Periodontology, Faculty of Dentistry, Beni-Suef University, Beni-Suef, Egypt
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14
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Groeneveld ME, Bogunovic N, Musters RJP, Tangelder GJ, Pals G, Wisselink W, Micha D, Yeung KK. Betaglycan (TGFBR3) up-regulation correlates with increased TGF-β signaling in Marfan patient fibroblasts in vitro. Cardiovasc Pathol 2017; 32:44-49. [PMID: 29198452 DOI: 10.1016/j.carpath.2017.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Marfan syndrome (MFS), a congenital connective tissue disorder leading to aortic aneurysm development, is caused by fibrillin-1 (FBN1) gene mutations. Transforming growth factor beta (TGF-β) might play a role in the pathogenesis. It is still a matter of discussion if and how TGF-β up-regulates the intracellular downstream pathway, although TGF-β receptor 3 (TGFBR3 or Betaglycan) is thought to be involved. We aimed to elucidate the role of TGFBR3 protein in TGF-β signaling in Marfan patients. METHODS Dermal fibroblasts of MFS patients with haploinsufficient (HI; n=9) or dominant negative (DN; n=4) FBN1 gene mutations, leading to insufficient or malfunctioning fibrillin-1, respectively, were used. Control cells (n=10) were from healthy volunteers. We quantified TGFBR3 protein expression by immunofluorescence microscopy and gene expression of FBN1, TGFB1, its receptors, and downstream transcriptional target genes by quantitative polymerase chain reaction. RESULTS Betaglycan protein expression in FBN1 mutants pooled was higher than in controls (P=.004) and in DN higher than in HI (P=.015). In DN, significantly higher mRNA expression of FBN1 (P=.014), SMAD7 (P=.019), HSP47 (P=.023), and SERPINE1 (P=.008), but a lower HSPA5 expression (P=.029), was observed than in HI. A pattern of higher expression was noted for TGFB1 (P=.059), FN1 (P=.089), and COL1A1 (P=.089) in DN as compared to HI. TGFBR3 protein expression in cells, both presence in the endoplasmic reticulum and amount of vesicles per cell, correlated positively with TGFB1 mRNA expression (Rs=0.60, P=.017; Rs=0.55, P=.029; respectively). TGFBR3 gene expression did not differ between groups. CONCLUSION We demonstrated that activation of TGF-β signaling is higher in patients with a DN than an HI FBN1 gene mutation. Also, TGFBR3 protein expression is increased in the DN group and correlates positively with TGFB1 expression in groups pooled. We suggest that TGFBR3 protein expression is involved in up-regulated TGF-β signaling in MFS patients with a DN FBN1 gene mutation.
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Affiliation(s)
- Menno Evert Groeneveld
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Natalija Bogunovic
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands; Department of Physiology, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - René John Philip Musters
- Department of Physiology, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Geert Jan Tangelder
- Department of Physiology, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Gerard Pals
- Department of Clinical Genetics, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Willem Wisselink
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Dimitra Micha
- Department of Clinical Genetics, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands
| | - Kak Khee Yeung
- Department of Vascular Surgery, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands; Department of Physiology, Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, The Netherlands.
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15
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Bayram Y, White JJ, Elcioglu N, Cho MT, Zadeh N, Gedikbasi A, Palanduz S, Ozturk S, Cefle K, Kasapcopur O, Coban Akdemir Z, Pehlivan D, Begtrup A, Carvalho CM, Paine IS, Mentes A, Bektas-Kayhan K, Karaca E, Jhangiani SN, Muzny DM, Gibbs RA, Lupski JR, Lupski JR. REST Final-Exon-Truncating Mutations Cause Hereditary Gingival Fibromatosis. Am J Hum Genet 2017; 101:149-156. [PMID: 28686854 DOI: 10.1016/j.ajhg.2017.06.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 06/13/2017] [Indexed: 02/04/2023] Open
Abstract
Hereditary gingival fibromatosis (HGF) is the most common genetic form of gingival fibromatosis that develops as a slowly progressive, benign, localized or generalized enlargement of keratinized gingiva. HGF is a genetically heterogeneous disorder and can be transmitted either as an autosomal-dominant or autosomal-recessive trait or appear sporadically. To date, four loci (2p22.1, 2p23.3-p22.3, 5q13-q22, and 11p15) have been mapped to autosomes and one gene (SOS1) has been associated with the HGF trait observed to segregate in a dominant inheritance pattern. Here we report 11 individuals with HGF from three unrelated families. Whole-exome sequencing (WES) revealed three different truncating mutations including two frameshifts and one nonsense variant in RE1-silencing transcription factor (REST) in the probands from all families and further genetic and genomic analyses confirmed the WES-identified findings. REST is a transcriptional repressor that is expressed throughout the body; it has different roles in different cellular contexts, such as oncogenic and tumor-suppressor functions and hematopoietic and cardiac differentiation. Here we show the consequences of germline final-exon-truncating mutations in REST for organismal development and the association with the HGF phenotype.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA; Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
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16
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Almiñana-Pastor PJ, Buitrago-Vera PJ, Alpiste-Illueca FM, Catalá-Pizarro M. Hereditary gingival fibromatosis: Characteristics and treatment approach. J Clin Exp Dent 2017; 9:e599-e602. [PMID: 28469831 PMCID: PMC5410686 DOI: 10.4317/jced.53644] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 01/07/2017] [Indexed: 12/24/2022] Open
Abstract
Hereditary gingival fibromatosis (HGF) is a rare disorder characterized by a benign, non-hemorrhagic, fibrous gingival overgrowth that can appear in isolation or as part of a syndrome. Clinically, a pink gingiva with marked stippling can be seen to cover almost all the tooth, in many cases preventing eruption. HGF usually begins during the transition from primary to permanent teeth, giving rise to a condition that can have negative psychological effects at that age. As it does not resolve spontaneously, the treatment of choice is gingivectomy, which can be performed with an internal or external bevel incision, depending on each case and bearing in mind the changes that will take place at the dentogingival junction (DGJ). This paper describes clinical aspects and treatment in two eight-year-old boys with HGF, considering different facets of the surgical approach with conscious sedation in young children. Key words:Hereditary gingival fibromatosis, gingivectomy, internal bevel incision, external bevel incision, gingival overgrowth.
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Affiliation(s)
- Pedro J Almiñana-Pastor
- DD, Post-graduated in Periodontics, Department d´Estomatologia, Facultad de Medicina y Odontologia, Universidad de Valencia, Valencia, Spain
| | - Pedro J Buitrago-Vera
- MD DD, PhD in Medicine. Adjunct Professor of Periodontics, Facultad de Medicina y Odontologia, Universidad de Valencia, Valencia, Spain
| | - Francisco M Alpiste-Illueca
- MD DD, PhD in Medicine. Assistant Professor of Periodontics, Department d´Estomatologia, Facultad de Medicina y Odontologia, Universidad de Valencia, Valencia, Spain
| | - Montserrat Catalá-Pizarro
- MD DD, PhD in Medicine. Associate Professor of Pediatric Dentistry, Department d´Estomatologia, Facultad de Medicina y Odontologia, Universidad de Valencia, Valencia, Spain
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17
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Bozkurt SB, Hakki SS, Hakki EE, Durak Y, Kantarci A. Porphyromonas gingivalis Lipopolysaccharide Induces a Pro-inflammatory Human Gingival Fibroblast Phenotype. Inflammation 2016; 40:144-153. [DOI: 10.1007/s10753-016-0463-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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18
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Hwang J, Kim YL, Kang S, Kim S, Kim SO, Lee JH, Han DH. Genetic analysis of hereditary gingival fibromatosis using whole exome sequencing and bioinformatics. Oral Dis 2016; 23:102-109. [DOI: 10.1111/odi.12583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/14/2016] [Accepted: 08/30/2016] [Indexed: 12/22/2022]
Affiliation(s)
- J Hwang
- Department of IT Convergence and Engineering; Pohang University of Science and Technology; Pohang Korea
| | - Y-L Kim
- Department of Prosthodontics; College of Dentistry; Yonsei University; Seoul Korea
| | - S Kang
- Department of Prosthodontics; College of Dentistry; Yonsei University; Seoul Korea
| | - S Kim
- Department of Life Sciences; Pohang University of Science and Technology; Pohang Korea
| | - S-O Kim
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
| | - JH Lee
- Department of Prosthodontics; College of Dentistry; Yonsei University; Seoul Korea
| | - D-H Han
- Department of Prosthodontics; College of Dentistry; Yonsei University; Seoul Korea
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19
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Gajendrareddy PK, Junges R, Cygan G, Zhao Y, Marucha PT, Engeland CG. Increased oxygen exposure alters collagen expression and tissue architecture during ligature-induced periodontitis. J Periodontal Res 2016; 52:644-649. [PMID: 27573480 DOI: 10.1111/jre.12408] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2016] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND OBJECTIVE The aim of this study was to evaluate the effects of increased oxygen availability on gene expression and on collagen deposition/maturation in the periodontium following disease. MATERIAL AND METHODS Male Wistar rats had ligatures placed around their molars to induce periodontal disease, and a subset of animals underwent hyperbaric oxygen (HBO) treatment for 2 h twice per day. At 15 and 28 d, tissue gene expression of COL1A1, transforming growth factor-β1 and alkaline phosphatase was determined; other histological samples were stained with Picrosirius red to evaluate levels of collagen deposition, maturation and thickness. RESULTS In animals that underwent HBO treatment, type I collagen expression was higher and collagen deposition, maturation and thickness were more robust. Reduced mRNA levels of transforming growth factor-beta1 and alkaline phosphatase in HBO-treated rats on day 28 suggested that a quicker resolution in both soft tissue and bone remodeling occurred following oxygen treatment. No differences in inflammation were observed between groups. CONCLUSIONS The extracellular matrix regenerated more quickly in the HBO-treated group as evidenced by higher collagen expression, deposition and maturation.
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Affiliation(s)
- P K Gajendrareddy
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA.,Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - R Junges
- Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Faculty of Dentistry, Department of Oral Biology, University of Oslo, Oslo, Norway
| | - G Cygan
- Department of Oral and Maxillofacial Surgery, West Virginia University, Morgantown, WV, USA
| | - Y Zhao
- Department of Periodontics, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA.,Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - P T Marucha
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA.,School of Dentistry, Oregon Health and Science University, Portland, OR, USA
| | - C G Engeland
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA.,Department of Biobehavioral Health, The Pennsylvania State University, University Park, PA, USA.,College of Nursing, The Pennsylvania State University, University Park, PA, USA
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20
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Pêgo SPB, de Faria PR, Santos LAN, Coletta RD, de Aquino SN, Martelli-Júnior H. Ultrastructural evaluation of gingival connective tissue in hereditary gingival fibromatosis. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:81-88.e2. [PMID: 27260277 DOI: 10.1016/j.oooo.2016.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 04/02/2016] [Accepted: 04/05/2016] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To describe the ultrastructural features of hereditary gingival fibromatosis (HGF) in affected family members and compare microscopic findings with normal gingival (NG) tissue. STUDY DESIGN Gingival tissue samples from nine patients with HGF from five unrelated families were evaluated by transmission electron microscopy. Nine NG tissue samples were used for comparison. RESULTS Areas containing collagen fibrils forming loops and folds were observed in both groups, whereas oxytalan fibers were frequently identified in the HGF group. The diameter of collagen fibrils and the interfibrillar space among them were more uniform in the NG group than in the HGF group. Fibroblasts were the most common cells found in both the HGF and NG groups and exhibited enlarged, rough endoplasmic reticulum, mitochondria with well-preserved crests, conspicuous nucleoli, and euchromatic chromatin. Other cells, such as mast cells, plasma cells, and macrophages, were also observed. CONCLUSIONS HGF tissues had ultrastructural characteristics that were very similar to those of NG tissues. Oxytalan fibers were observed more frequently in the HGF samples than in the NG samples. Other studies of HGF in patients from different families should be performed to better understand the pathogenesis of this hereditary condition.
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Affiliation(s)
- Sabina Pena B Pêgo
- Full Professor, Dental School, State University of Montes Claros, Av Rui Braga - Vila Mauriceia - Campus Darcy Ribeiro - CEP 39401-089, Montes Claros, Minas Gerais, Brazil.
| | - Paulo Rogério de Faria
- Adjunct Professor, Institute of Biomedical Science, Department of Morphology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Luis Antônio N Santos
- Full Professor, Dental School, State University of Montes Claros, Av Rui Braga - Vila Mauriceia - Campus Darcy Ribeiro - CEP 39401-089, Montes Claros, Minas Gerais, Brazil
| | - Ricardo D Coletta
- Associate Professor, Department of Oral Diagnosis, School of Dentistry, State University of Campinas, São Paulo, Brazil
| | - Sibele Nascimento de Aquino
- Professor, Department of Oral Dentistry, Federal University of Juiz de Fora, Governador Valadares, Minas Gerais, Brazil
| | - Hercílio Martelli-Júnior
- Full Professor, Dental School, State University of Montes Claros, Av Rui Braga - Vila Mauriceia - Campus Darcy Ribeiro - CEP 39401-089, Montes Claros, Minas Gerais, Brazil
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21
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Gawron K, Łazarz-Bartyzel K, Potempa J, Chomyszyn-Gajewska M. Gingival fibromatosis: clinical, molecular and therapeutic issues. Orphanet J Rare Dis 2016; 11:9. [PMID: 26818898 PMCID: PMC4729029 DOI: 10.1186/s13023-016-0395-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/20/2016] [Indexed: 12/28/2022] Open
Abstract
Gingival fibromatosis is a rare and heterogeneous group of disorders that develop as slowly progressive, local or diffuse enlargements within marginal and attached gingiva or interdental papilla. In severe cases, the excess tissue may cover the crowns of the teeth, thus causing functional, esthetic, and periodontal problems, such as bone loss and bleeding, due to the presence of pseudopockets and plaque accumulation. It affects both genders equally. Hereditary, drug-induced, and idiopathic gingival overgrowth have been reported. Hereditary gingival fibromatosis can occur as an isolated condition or as part of a genetic syndrome. The pathologic manifestation of gingival fibromatosis comprises excessive accumulation of extracellular matrix proteins, of which collagen type I is the most prominent example. Mutation in the Son-of-Sevenless-1 gene has been suggested as one possible etiological cause of isolated (non-syndromic) hereditary gingival fibromatosis, but mutations in other genes are also likely to be involved, given the heterogeneity of this condition. The most attractive concept of mechanism for drug-induced gingival overgrowth is epithelial-to-mesenchymal transition, a process in which interactions between gingival cells and the extracellular matrix are weakened as epithelial cells transdifferentiate into fibrogenic fibroblast-like cells. The diagnosis is mainly made on the basis of the patient's history and clinical features, and on histopathological evaluation of affected gingiva. Early diagnosis is important, mostly to exclude oral malignancy. Differential diagnosis comprises all pathologies in the mouth with excessive gingival overgrowth. Hereditary gingival fibromatosis may present as an autosomal-dominant or less commonly autosomal-recessive mode of inheritance. If a systemic disease or syndrome is suspected, the patient is directed to a geneticist for additional clinical examination and specialized diagnostic tests. Treatments vary according to the type of overgrowth and the extent of disease progression, thus, scaling of teeth is sufficient in mild cases, while in severe cases surgical intervention is required. Prognosis is precarious and the risk of recurrence exists.
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Affiliation(s)
- Katarzyna Gawron
- Microbiology Department, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland.
| | - Katarzyna Łazarz-Bartyzel
- Department of Periodontology and Oral Medicine, Jagiellonian University, Medical College, Institute of Dentistry, 30-387, Krakow, Poland.
| | - Jan Potempa
- Microbiology Department, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland.
- Oral Health and Systemic Disease Research Group, School of Dentistry, University of Louisville, Louisville, KY, USA.
| | - Maria Chomyszyn-Gajewska
- Department of Periodontology and Oral Medicine, Jagiellonian University, Medical College, Institute of Dentistry, 30-387, Krakow, Poland.
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22
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Kanagotagi S, Sidana S, Rajguru S, Padhye A. Gingival Fibromatosis with Distinctive Facies - A Three Generation Case Report. J Clin Diagn Res 2015; 9:ZD05-7. [PMID: 26155576 DOI: 10.7860/jcdr/2015/11670.5881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 04/09/2015] [Indexed: 11/24/2022]
Abstract
Hereditary gingival fibromatosis (HGF) is a rare disorder characterized by progressive and varying degrees of gingival overgrowth. Oral manifestations may vary from minimal involvement of only tuberosity area and the buccal gingiva around the lower molars to a generalized gingival enlargement. It can occur as an isolated disorder but can be one feature of a syndrome. Although the clinical and histopathological characteristics of HGF are well known and described, the pathogenic mechanism remains unknown. The goal of this article is to describe a family with three generations afflicted with a syndromic form of HGF known as gingival fibromatosis with distinctive facies, and discuss the diagnosis and treatment of the disease.
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Affiliation(s)
- Sachin Kanagotagi
- Senior Lecturer, Department of Periodontics, MGM Dental College and Hospital , Navi Mumbai, India
| | - Sunil Sidana
- Reader, Department of Oral & Maxillofacial Surgery, MGM Dental College and Hospital , Navi Mumbai, India
| | - Sneha Rajguru
- PG Student, Department of Periodontics, MGM Dental College and Hospital , Navi Mumbai, India
| | - Ashvini Padhye
- Professor and Head, Department of Periodontics, MGM Dental College and Hospital , Navi Mumbai, India
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Warnock JJ, Bobe G, Duesterdieck-Zellmer KF. Fibrochondrogenic potential of synoviocytes from osteoarthritic and normal joints cultured as tensioned bioscaffolds for meniscal tissue engineering in dogs. PeerJ 2014; 2:e581. [PMID: 25289180 PMCID: PMC4183955 DOI: 10.7717/peerj.581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 08/26/2014] [Indexed: 12/11/2022] Open
Abstract
Meniscal tears are a common cause of stifle lameness in dogs. Use of autologous synoviocytes from the affected stifle is an attractive cell source for tissue engineering replacement fibrocartilage. However, the diseased state of these cells may impede in vitro fibrocartilage formation. Synoviocytes from 12 osteoarthritic (“oaTSB”) and 6 normal joints (“nTSB”) were cultured as tensioned bioscaffolds and compared for their ability to synthesize fibrocartilage sheets. Gene expression of collagens type I and II were higher and expression of interleukin-6 was lower in oaTSB versus nTSB. Compared with nTSB, oaTSB had more glycosaminoglycan and alpha smooth muscle staining and less collagen I and II staining on histologic analysis, whereas collagen and glycosaminoglycan quantities were similar. In conclusion, osteoarthritic joint—origin synoviocytes can produce extracellular matrix components of meniscal fibrocartilage at similar levels to normal joint—origin synoviocytes, which makes them a potential cell source for canine meniscal tissue engineering.
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Affiliation(s)
- Jennifer J Warnock
- College of Veterinary Medicine, Oregon State University , Corvallis, OR , United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University , Corvallis, OR , United States
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Henderson B, Kaiser F. Do reciprocal interactions between cell stress proteins and cytokines create a new intra-/extra-cellular signalling nexus? Cell Stress Chaperones 2013; 18:685-701. [PMID: 23884786 PMCID: PMC3789882 DOI: 10.1007/s12192-013-0444-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 06/16/2013] [Accepted: 06/17/2013] [Indexed: 12/22/2022] Open
Abstract
Cytokine biology began in the 1950s, and by 1988, a large number of cytokines, with a myriad of biological actions, had been discovered. In 1988, the basis of the protein chaperoning function of the heat shock, or cell stress, proteins was identified, and it was assumed that this was their major activity. However, since this time, evidence has accumulated to show that cell stress proteins are secreted by cells and can stimulate cellular cytokine synthesis with the generation of pro- and/or anti-inflammatory cytokine networks. Cell stress can also control cytokine synthesis, and cytokines are able to induce, or even inhibit, the synthesis of selected cell stress proteins and may also promote their release. How cell stress proteins control the formation of cytokines is not understood and how cytokines control cell stress protein synthesis depends on the cellular compartment experiencing stress, with cytoplasmic heat shock factor 1 (HSF1) having a variety of actions on cytokine gene transcription. The endoplasmic reticulum unfolded protein response also exhibits a complex set of behaviours in terms of control of cytokine synthesis. In addition, individual intracellular cell stress proteins, such as Hsp27 and Hsp90, have major roles in controlling cellular responses to cytokines and in controlling cytokine synthesis in response to exogenous factors. While still confusing, the literature supports the hypothesis that cell stress proteins and cytokines may generate complex intra- and extra-cellular networks, which function in the control of cells to external and internal stressors and suggests the cell stress response as a key parameter in cytokine network generation and, as a consequence, in control of immunity.
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Affiliation(s)
- Brian Henderson
- />Department of Microbial Diseases, Eastman Dental Institute, University College London, London, UK
| | - Frank Kaiser
- />Department of Microbial Diseases, Eastman Dental Institute, University College London, London, UK
- />Division of Microbial Diseases, Eastman Dental Institute, University College London, 256 Gray’s Inn Road, London, WC1X 8LD UK
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Yang WH, Kuo MP, Liu CM, Deng YT, Chang HH, Chang JC. Curcumin Inhibits TGFβ1-induced CCN2 via Src, JNK, and Smad3 in Gingiva. J Dent Res 2013; 92:629-34. [DOI: 10.1177/0022034513488139] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Transforming growth factor β (TGFβ) is a key regulator associated with the pathogenesis of gingival overgrowth (GO). Connective tissue growth factor (CTGF/CCN2) is overexpressed in GO tissues. CCN2 promotes and sustains fibrosis initiated by TGFβ. Previous studies have shown that JNK and Smad3 activation is required for TGFβ-induced CCN2 expressions in human gingival fibroblasts (HGFs). In this study, we have found that Src is a major signaling mediator for TGFβ-induced CCN2 expressions in HGFs. Pre-treatment with 2 Src kinase inhibitors (PP2, Src inhibitor-1) significantly reduced TGFβ1-induced CCN2 synthesis and JNK and Smad3 activation in HGFs. These results suggest that Src is an upstream signaling transducer of JNK and Smad3 with respect to TGFβ1-stimulated CCN2 expression in HGFs. We further found that curcumin significantly abrogated the TGFβ1-induced CCN2 in HGFs by inhibiting the phosphorylations of Src, JNK, and Smad3. Furthermore, curcumin inhibited TGFβ1-induced HGF migration and α-SMA expression. Curcumin potentially qualifies as a useful agent for the control of GO.
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Affiliation(s)
- W.-H. Yang
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - M.Y.-P. Kuo
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - C.-M. Liu
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Y.-T. Deng
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - H.-H. Chang
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - J.Z.-C. Chang
- School of Dentistry and Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
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Nibali L, Medlar A, Stanescu H, Kleta R, Darbar U, Donos N. Linkage analysis confirms heterogeneity of hereditary gingival fibromatosis. Oral Dis 2012; 19:100-5. [PMID: 22849749 DOI: 10.1111/j.1601-0825.2012.01965.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/11/2012] [Accepted: 06/12/2012] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Hereditary Gingival Fibromatosis (HGF) is a rare benign fibrous lesion of the gingival tissues presumably caused by single gene defects. The aim of this study was to identify the genetic defect leading to HGF in an extended pedigree. MATERIALS AND METHODS We report the clinical features and genetic analysis of a family affected by HGF. A total of 17 subjects were assessed clinically and had blood samples taken for DNA extraction. Multipoint parametric linkage analysis was performed to identify the possible chromosomal location responsible for HGF in this family. RESULTS Presence of severe HGF associated with tooth impaction was confirmed for seven members of this three-generation family. Linkage analysis revealed that loci on chromosomes 7, 10, 13, 15, 16, 17, 19 and 20 were linked to this trait. Previously found mutations in the SOS1 and GINGF loci were therefore excluded by this analysis. CONCLUSIONS This study brings further evidence for genetic heterogeneity of HGF and points towards the existence of different, not-yet-identified genes linked to this condition.
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Affiliation(s)
- L Nibali
- Periodontology Unit and Department of Clinical Research, University College London, Eastman Dental Institute and Hospital, London, UK
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Bitu CC, Destro MFDSS, Carrera M, da Silva SD, Graner E, Kowalski LP, Soares FA, Coletta RD. HOXA1 is overexpressed in oral squamous cell carcinomas and its expression is correlated with poor prognosis. BMC Cancer 2012; 12:146. [PMID: 22498108 PMCID: PMC3351375 DOI: 10.1186/1471-2407-12-146] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 04/12/2012] [Indexed: 11/12/2022] Open
Abstract
Background HOX genes encode homeodomain-containing transcription factors involved in the regulation of cellular proliferation and differentiation during embryogenesis. However, members of this family demonstrated oncogenic properties in some malignancies. The present study investigated whether genes of the HOXA cluster play a role in oral cancer. Methods In order to identify differentially expressed HOXA genes, duplex RT-PCR in oral samples from healthy mucosa and squamous cell carcinoma was used. The effects of HOXA1 on proliferation, apoptosis, adhesion, invasion, epithelial-mesenchymal transition (EMT) and anchorage-independent growth were assessed in cells with up- and down-regulation of HOXA1. Immunohistochemical analysis using a tissue microarray (TMA) containing 127 oral squamous cell carcinomas (OSCC) was performed to determine the prognostic role of HOXA1 expression. Results We showed that transcripts of HOXA genes are more abundant in OSCC than in healthy oral mucosa. In particular, HOXA1, which has been described as one of the HOX members that plays an important role in tumorigenesis, was significantly more expressed in OSCCs compared to healthy oral mucosas. Further analysis demonstrated that overexpression of HOXA1 in HaCAT human epithelial cells promotes proliferation, whereas downregulation of HOXA1 in human OSCC cells (SCC9 cells) decreases it. Enforced HOXA1 expression in HaCAT cells was not capable of modulating other events related to tumorigenesis, including apoptosis, adhesion, invasion, EMT and anchorage-independent growth. A high number of HOXA1-positive cells was significantly associated with T stage, N stage, tumor differentiation and proliferative potential of the tumors, and was predictive of poor survival. In multivariate analysis, HOXA1 was an independent prognostic factor for OSCC patients (HR: 2.68; 95% CI: 1.59-2.97; p = 0.026). Conclusion Our findings indicate that HOXA1 may contribute to oral carcinogenesis by increasing tumor cell proliferation, and suggest that HOXA1 expression might be helpful as a prognostic marker for patients with OSCC.
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Affiliation(s)
- Carolina Cavalcante Bitu
- Department of Oral Diagnosis, School of Dentistry, State University of Campinas, CP 52, CEP 13414-018 Piracicaba, São Paulo, Brazil.
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Sobral LM, Aseredo F, Agostini M, Bufalino A, Pereira MCC, Graner E, Coletta RD. Molecular events associated with ciclosporin A-induced gingival overgrowth are attenuated by Smad7 overexpression in fibroblasts. J Periodontal Res 2011; 47:149-58. [DOI: 10.1111/j.1600-0765.2011.01412.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Palioto DB, Rodrigues TL, Marchesan JT, Beloti MM, de Oliveira PT, Rosa AL. Effects of enamel matrix derivative and transforming growth factor-β1 on human osteoblastic cells. Head Face Med 2011; 7:13. [PMID: 21767401 PMCID: PMC3162535 DOI: 10.1186/1746-160x-7-13] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 07/18/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Extracellular matrix proteins are key factors that influence the regenerative capacity of tissues. The objective of the present study was to evaluate the effects of enamel matrix derivative (EMD), TGF-β1, and the combination of both factors (EMD+TGF-β1) on human osteoblastic cell cultures. METHODS Cells were obtained from alveolar bone of three adult patients using enzymatic digestion. Effects of EMD, TGF-β1, or a combination of both were analyzed on cell proliferation, bone sialoprotein (BSP), osteopontin (OPN) and alkaline phosphatase (ALP) immunodetection, total protein synthesis, ALP activity and bone-like nodule formation. RESULTS All treatments significantly increased cell proliferation compared to the control group at 24 h and 4 days. At day 7, EMD group showed higher cell proliferation compared to TGF-β1, EMD + TGF-β1 and the control group. OPN was detected in the majority of the cells for all groups, whereas fluorescence intensities for ALP labeling were greater in the control than in treated groups; BSP was not detected in all groups. All treatments decreased ALP levels at 7 and 14 days and bone-like nodule formation at 21 days compared to the control group. CONCLUSIONS The exposure of human osteoblastic cells to EMD, TGF-β1 and the combination of factors in vitro supports the development of a less differentiated phenotype, with enhanced proliferative activity and total cell number, and reduced ALP activity levels and matrix mineralization.
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Affiliation(s)
- Daniela B Palioto
- Department of Oral Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
| | - Thaisângela L Rodrigues
- Department of Oral Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
| | - Julie T Marchesan
- Department of Oral Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
| | - Márcio M Beloti
- Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
| | - Paulo T de Oliveira
- Department of Morphology, Stomatology and Physiology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
| | - Adalberto L Rosa
- Department of Oral Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto - University of São Paulo, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil
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Taguchi T, Nazneen A, Al-Shihri AA, A. Turkistani K, Razzaque MS. Heat shock protein 47: a novel biomarker of phenotypically altered collagen-producing cells. Acta Histochem Cytochem 2011; 44:35-41. [PMID: 21614164 PMCID: PMC3096080 DOI: 10.1267/ahc.11001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 02/18/2011] [Indexed: 01/15/2023] Open
Abstract
Heat shock protein 47 (HSP47) is a collagen-specific molecular chaperone that helps the molecular maturation of various types of collagens. A close association between increased expression of HSP47 and the excessive accumulation of collagens is found in various human and experimental fibrotic diseases. Increased levels of HSP47 in fibrotic diseases are thought to assist in the increased assembly of procollagen, and thereby contribute to the excessive deposition of collagens in fibrotic areas. Currently, there is not a good universal histological marker to identify collagen-producing cells. Identifying phenotypically altered collagen-producing cells is essential for the development of cell-based therapies to reduce the progression of fibrotic diseases. Since HSP47 has a single substrate, which is collagen, the HSP47 cellular expression provides a novel universal biomarker to identify phenotypically altered collagen-producing cells during wound healing and fibrosis. In this brief article, we explained why HSP47 could be used as a universal marker for identifying phenotypically altered collagen-producing cells.
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Affiliation(s)
- Takashi Taguchi
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences
| | - Arifa Nazneen
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences
| | - Abdulmonem A. Al-Shihri
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine
| | | | - Mohammed S. Razzaque
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine
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Ye H, Cai PC, Zhou Q, Ma WL. Transforming growth factor-β1 suppresses the up-regulation of matrix metalloproteinase-2 by lung fibroblasts in response to tumor necrosis factor-α. Wound Repair Regen 2011; 19:392-9. [PMID: 21518085 DOI: 10.1111/j.1524-475x.2011.00680.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Exposed to inflammatory factors or cytokines, fibroblasts appear to play additional roles beyond the deposition of extracellular matrix. It has been reported that tumor necrosis factor-α (TNF-α) induces the production of matrix metalloproteinase-2 (MMP-2) and transforming growth factor-β1 (TGF-β1) in fibroblasts. In this study, we demonstrated that the active MMP-2 secreted by lung fibroblasts reached the peak level at 12 hours after TNF-α treatment, whereas, by adding anti-TGF-β1 antibody in the culture medium, the MMP-2 production in response to TNF-α was maintained at high levels after 24 hours of treatment. We also confirmed that TNF-α induced up-regulation of active TGF-β1 and exogenous TGF-β1 induced down-regulation of MMP-2 synthesis in lung fibroblasts. Moreover, an increased MMP-2 level was observed in a rat model with pulmonary inflammation and fibrosis induced by bleomycin-A5. This revealed that MMP-2 in the lung reached the peak level when TNF-α reached the peak level at the 7th day, and then MMP-2 decreased along with an increase in the TGF-β1 level. Taken together, our results demonstrate that TNF-α induced an increase of MMP-2 and TGF-β1 in lung fibroblasts, and the TGF-β1 attenuated the up-regulation of MMP-2. This suggests that MMP-2 secreted from fibroblasts modulated by TNF-α/TGF-β1 might play an important role in pulmonary inflammation and fibrosis.
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Affiliation(s)
- Hong Ye
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Chung HY, Lee EK, Choi YJ, Kim JM, Kim DH, Zou Y, Kim CH, Lee J, Kim HS, Kim ND, Jung JH, Yu BP. Molecular inflammation as an underlying mechanism of the aging process and age-related diseases. J Dent Res 2011; 90:830-40. [PMID: 21447699 DOI: 10.1177/0022034510387794] [Citation(s) in RCA: 156] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Aging is a biological process characterized by time-dependent functional declines that are influenced by changes in redox status and by oxidative stress-induced inflammatory reactions. An organism's pro-inflammatory status may underlie the aging process and age-related diseases. In this review, we explore the molecular basis of low-grade, unresolved, subclinical inflammation as a major risk factor for exacerbating the aging process and age-related diseases. We focus on the redox-sensitive transcription factors, NF-κB and FOXO, which play essential roles in the expression of pro-inflammatory mediators and anti-oxidant enzymes, respectively. Major players in molecular inflammation are discussed with respect to the age-related up-regulation of pro-inflammatory cytokines and adhesion molecules, cyclo-oxygenase-2, lipoxygenase, and inducible nitric oxide synthase. The molecular inflammation hypothesis proposed by our laboratory is briefly described to give further molecular insights into the intricate interplay among redox balance, pro-inflammatory gene activation, and chronic age-related inflammatory diseases. The final section discusses calorie restriction as an aging-retarding intervention that also exhibits extraordinarily effective anti-inflammatory activity by modulating GSH redox, NF-κB, SIRT1, PPARs, and FOXOs.
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Affiliation(s)
- H Y Chung
- Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Korea.
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Andersen MB, Pingel J, Kjær M, Langberg H. Interleukin-6: a growth factor stimulating collagen synthesis in human tendon. J Appl Physiol (1985) 2011; 110:1549-54. [PMID: 21350025 DOI: 10.1152/japplphysiol.00037.2010] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Human connective tissue, e.g., tendon, responds dynamically to physical activity, with collagen synthesis being increased after both acute and prolonged exercise or training. Markers of collagen synthesis and degradation as well as concentration of several potential growth factors have been shown to increase markedly in the peritendinous tissue around the human Achilles tendon following exercise. Of these potential growth factors interleukin-6 (IL-6) showed the largest fold increase, suggesting that IL-6 may be involved in transforming mechanical loading into collagen synthesis in human tendon tissue. In the present study the tissue levels of type I collagen turnover markers [procollagen type I NH(2)-terminal propeptide (PINP) and C-OOH terminal telopeptide of type I collagen (ICTP)] were measured by the use of microdialysis in peritendinous tissue of the Achilles tendon in 14 male volunteers, who had recombinant human IL-6 (rhIL-6) infused into the peritendinous tissue of the Achilles' tendon in one leg, with the other leg serving as control. Subjects were randomly assigned to either a resting group or an exercise group performing a 1-h treadmill run (12 km/h, 2% uphill) before infusion. In addition to IL-6, serum concentrations of collagen turnover markers PINP, ICTP, and COOH-terminal telopeptide of type I collagen (ICTX) were measured. The peritendinous concentration of PINP rose markedly in response to rhIL-6 infusion in both the exercise and the rest group, demonstrating that infusion of IL-6 significantly stimulates collagen synthesis in the peritendinous tissue in humans. Exercise alone did not result in an increased collagen synthesis. This indicates that IL-6 is involved in the collagen synthesis and supports the hypothesis that IL-6 is an important growth factor of the connective tissue in healthy human tendons.
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Affiliation(s)
- Mette Bisgaard Andersen
- Institute of Sports Medicine Copenhagen, Bispebjerg Hospital and Centre for Healthy Ageing, Bispebjerg Bakke 23, DK-2400 Copenhagen NV, Denmark
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Shi J, Lin W, Li X, Zhang F, Hong X. Hereditary gingival fibromatosis: a three-generation case and pathogenic mechanism research on progress of the disease. J Periodontol 2010; 82:1089-95. [PMID: 21142979 DOI: 10.1902/jop.2010.100599] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Hereditary gingival fibromatosis (HGF) is a rare benign disorder characterized by progressive overgrowth of gingiva. Although the clinical and histopathologic characteristics of HGF are explicit, the pathogenic mechanism remains unclear. The goal of this article is to describe a three-generation HGF case and discuss the diagnosis, treatment, and inheritance of the disease. The known cellular and molecular features of HGF are also emphasized. METHODS Family and medical histories of the patients were recorded, and a series of preliminary examinations, including clinical, histologic, radiographic, and gene examination, were performed to make a diagnosis and learn about the genetic characteristics. An all-quadrant flap surgery was performed to remove excess gingiva, and orthodontic treatment was undertaken to help tooth eruption. Recent advances were reviewed for further knowledge of genetic, cellular, and molecular features of HGF. RESULTS The patient's manifestations and examinations showed a typical HGF characteristic. There was no recurrence after surgery, and the premolars and molars erupted to bite plane. Genetic studies have found several gene mutations involved in HGF. Only the son-of-sevenless-1 gene is identified. Multiple molecular factors, such as transforming growth factor-β and matrix metalloproteinases, participate in HGF, regulating the extracellular matrix. CONCLUSIONS Surgical intervention is the usual treatment of HGF, but patients still have to deal with the risk of recurrence. Once the correlations between gene mutations, molecular changes, histology, and clinical situation are clear, they can be applied to clinical application, providing novel methods for disease prognosis and diagnosis and targets for disease prevention and treatment.
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Affiliation(s)
- Jiejun Shi
- Department of Orthodontics, Affiliated Stomatological Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Sobral LM, Montan PF, Zecchin KG, Martelli-Junior H, Vargas PA, Graner E, Coletta RD. Smad7 blocks transforming growth factor-β1-induced gingival fibroblast-myofibroblast transition via inhibitory regulation of Smad2 and connective tissue growth factor. J Periodontol 2010; 82:642-51. [PMID: 21054221 DOI: 10.1902/jop.2010.100510] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Transforming growth factor-β1 (TGF-β1), its downstream signaling mediators (Smad proteins), and specific targets, including connective tissue growth factor (CTGF), play important roles in tissue remodeling and fibrosis via myofibroblast activation. We investigated the effect of overexpression of Smad7, a TGF-β1 signaling inhibitor, on transition of gingival fibroblast to myofibroblast. Moreover, we analyzed the participation of CTGF on TGF-β1-mediated myofibroblast transformation. METHODS To study the inhibitory effect of Smad7 on TGF-β1/CTGF-mediating gingival fibroblast transition into myofibroblasts, we stably overexpressed Smad7 in normal gingival fibroblasts and in myofibroblasts from hereditary gingival fibromatosis (HGF). Myofibroblasts were characterized by the expression of the specific marker isoform α of the smooth muscle actin (α-SMA) by Western blot, flow cytometry, and immunofluorescence. Enzyme-linked immunosorbent assay for type I collagen was performed to measure myofibroblast activity. CTGF's role on myofibroblast transformation was examined by enzyme-linked immunosorbent assay and small interference RNA. RESULTS TGF-β1 induced the expression of α-SMA and CTGF, and small interference RNA-mediating CTGF silencing prevented fibroblast-myofibroblast switch induced by TGF-β1. In Smad7-overexpressing fibroblasts, ablation of TGF-β1-induced Smad2 phosphorylation marked decreased α-SMA, CTGF, and type I collagen expression. Similarly, HGF transfectants overexpressing Smad7 demonstrated low levels of α-SMA and phospho-Smad2 and significant reduction on CTGF and type I collagen production. CONCLUSIONS CTGF is critical for TGF-β1-induced gingival fibroblast-myofibroblast transition, and Smad7 overexpression is effective in the blockage of myofibroblast transformation and activation, suggesting that treatments targeting myofibroblasts by Smad7 overexpression may be clinically effective in gingival fibrotic diseases, such as HGF.
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Affiliation(s)
- Lays M Sobral
- Department of Oral Diagnosis, School of Dentistry, State University of Campinas, Piracicaba, São Paulo, Brazil
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Chang TY, Tsai CH, Chang YC. The upregulation of heat shock protein 47 in human gingival fibroblasts stimulated with cyclosporine A. J Periodontal Res 2010; 45:317-22. [DOI: 10.1111/j.1600-0765.2009.01238.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Dreyfuss JL, Veiga SS, Coulson-Thomas VJ, Santos IA, Toma L, Coletta RD, Nader HB. Differences in the expression of glycosaminoglycans in human fibroblasts derived from gingival overgrowths is related to TGF-beta up-regulation. Growth Factors 2010; 28:24-33. [PMID: 19886734 DOI: 10.3109/08977190903321819] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Glycosaminoglycans (GAGs) play important roles in cell behavior and have the ability to bind and modulate cytokines. Using primary cultured fibroblasts from hereditary gingival fibromatosis (HGF), normal gingiva (NG), and NG treated with cyclosporin-A (NGc) we show changes in the expression and structural characteristics of GAGs as well as in the expression of enzymes involved in their biosynthesis and degradation. In addition, we show the over-expression of TGF-beta1 and TGF-beta type II receptor in HGF and NGc. There is an increase in the GAGs retained in the cellular fraction, and the fine structure of galactosaminoglycans show a decrease in alpha-l-iduronic acid content in HGF and NGc. Elevated extracellular levels of low molecular weight hyaluronan (HA) are found in HGF due to increase in the expression of HA synthase 3 and hyaluronidases 1 and 2. The results bring new insights to the accumulation of extracellular matrix related to TGF-beta over-expression.
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Affiliation(s)
- Juliana L Dreyfuss
- Disciplina de Biologia Molecular, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
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Gonçalves LDR, Oliveira GAP, Borojevic R, Otazu IB, Feres-Filho EJ. Expression of metalloproteinases and their tissue inhibitors in gingiva affected by hereditary gingival fibromatosis: analysis of three cases within a family. J Periodontal Res 2009; 44:714-7. [PMID: 19453853 DOI: 10.1111/j.1600-0765.2008.01180.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND OBJECTIVE Hereditary gingival fibromatosis (HGF) is a benign disorder manifested by fibrous enlargement of keratinized gingiva. Evidence exists concerning the role of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) in mediating normal and pathological processes, including HGF. Nevertheless, there are few and contradictory results on the analysis of MMPs and TIMPs transcripts in this pathology. MATERIAL AND METHODS We studied the expression of the transcripts encoding MMP-1, -2 and -9 and TIMP-1 and -2 in gingival biopsies, obtained from three cases of HGF within a family, by semi-quantitative reverse transcriptase-polymerase chain reaction analysis. Samples were also processed for gelatin zymography. RESULTS Except for MMP-9, most transcripts presented a higher level of expression in biopsies from HGF patients compared with control subjects. Accordingly, MMP-9 gelatinase activity was detected at low and similar levels among samples. Moreover, MMP-2 enzymatic activity was not detected at all. CONCLUSION The mRNA expression of MMP-1 and -2 and TIMP-1 and -2 does not explain the gingival overgrowth presented in these cases. In addition, it is suggested that the gene expression of those molecules in the course of HGF is regulated at the translational or post-translational level.
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Affiliation(s)
- L Da Ros Gonçalves
- School of Dentistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
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Zhou J, Meng LY, Ye XQ, Von den Hoff JW, Bian Z. Increased expression of integrin alpha2 and abnormal response to TGF-beta1 in hereditary gingival fibromatosis. Oral Dis 2009; 15:414-21. [PMID: 19422573 DOI: 10.1111/j.1601-0825.2009.01567.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To investigate the possible correlation between integrin alpha1, alpha2, and beta1 expression and excessive collagen synthesis in fibroblasts from 3 unrelated Chinese families with hereditary gingival fibromatosis (HGF). DESIGN Gingival fibroblasts from three Chinese HGF patients and three healthy subjects were included. The expression of alpha1, alpha2, and beta1 integrin subunits was examined by immunohistochemistry, quantitative PCR, and flow cytometry. We also investigated the effects of transforming growth factor-beta1 (TGF-beta1) on the expression of these integrin subunits. RESULTS Our results demonstrate that the expression of alpha2 was significantly higher in HGF fibroblasts compared with control fibroblasts (P < 0.01). No significant differences in the expression of alpha1 and beta1 were detected. Furthermore, TGF-beta1 promoted the expression of alpha1 and alpha2 in fibroblasts from both HGF patients and controls. However, it had a larger effect on the expression of alpha2 in HGF fibroblasts than in control cells. In contrast, alpha1 expression was stimulated more in control fibroblasts. CONCLUSION The increased expression of integrin alpha2 and the increased response to TGF-beta1 of HGF fibroblasts may be related to the excessive collagen deposition in HGF patients.
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Affiliation(s)
- J Zhou
- Key Laboratory for Oral Biomedical Engineering Ministry of Education, School and Hospital of Stomatology, Wuhan University, Hubei, China
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Meng L, Ye X, Fan M, Xiong X, Von den Hoff JW, Bian Z. Keratinocytes modify fibroblast metabolism in hereditary gingival fibromatosis. Arch Oral Biol 2008; 53:1050-7. [DOI: 10.1016/j.archoralbio.2008.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2007] [Revised: 04/28/2008] [Accepted: 05/15/2008] [Indexed: 01/03/2023]
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Gürkan A, Emingil G, Çınarcık S, Berdeli A. Post-treatment effects of subantimicrobial dose doxycycline on clinical parameters and gingival crevicular fluid transforming growth factor-β1in severe, generalized chronic periodontitis. Int J Dent Hyg 2008; 6:84-92. [DOI: 10.1111/j.1601-5037.2007.00268.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rodrigues TLS, Marchesan JT, Coletta RD, Novaes AB, Grisi MFDM, Souza SLS, Taba M, Palioto DB. Effects of enamel matrix derivative and transforming growth factor-beta1 on human periodontal ligament fibroblasts. J Clin Periodontol 2007; 34:514-22. [PMID: 17509092 DOI: 10.1111/j.1600-051x.2007.01090.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
AIM The objective of this study was to evaluate the effects of enamel matrix derivative (EMD), transforming growth factor-beta1 (TGF-beta1), and a combination of both factors (EMD+TGF-beta1) on periodontal ligament (PDL) fibroblasts. MATERIAL AND METHODS Human PDL fibroblasts were obtained from three adult patients with a clinically healthy periodontium, using the explant technique. The effects of EMD, TGF-beta1, or a combination of both were analysed on PDL cell proliferation, adhesion, wound healing, and total protein synthesis, and on alkaline phosphatase (ALP) activity and bone-like nodule formation. RESULTS Treatment with EMD for 4, 7, and 10 days increased cell proliferation significantly compared with the negative control (p<0.05). At day 10, EMD and EMD+TGF-beta1 showed a higher cell proliferation compared with TGF-beta1 (p<0.01). Cell adhesion was significantly up-regulated by TGF-beta1 compared with EMD and EMD+TGF-beta1 (p<0.01). EMD enhanced in vitro wound healing of PDL cells compared with the other treatments. Total protein synthesis was significantly increased in PDL cells cultured with EMD compared with PDL cells treated with TGF-beta1 or EMD+TGF-beta1 (p<0.05). EMD induced ALP activity in PDL fibroblasts, which was associated with an increase of bone-like nodules. CONCLUSION These findings support the hypothesis that EMD and TGF-beta1 may play an important role in periodontal regeneration. EMD induced PDL fibroblast proliferation and migration, total protein synthesis, ALP activity, and mineralization, while TGF-beta1 increased cellular adhesion. However, the combination of both factors did not positively alter PDL fibroblast behaviour.
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Affiliation(s)
- Thaisângela L S Rodrigues
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Abstract
Cytokines are pleiotropic substances that are known to participate in inflammatory and immune responses as well as cell differentiation and proliferation. Interleukin-6 (IL-6) is a key cytokine with pro-inflammatory function. Wound healing is a complex cascade of physiologic events comprising inflammation, proliferation and remodeling, and proceeds with the integrated actions of different cells, cytokines, and the extracellular matrix. Aberrant wound healing results in keloid formation which causes disfigured appearance, discomfort, psychological stress, and patient frustration. In this review, the role of IL-6 signaling pathway in the pathogenesis of keloid is assessed and its potential as a therapeutic target is addressed. The existing data suggest that IL-6 mediated inflammation is a key player and may be considered as a common causative factor for development of keloid. Furthermore, in a recent comprehensive study, we confirmed the functional role of IL-6 signaling in keloid pathogenesis. Accordingly, inhibitory strategies of IL-6 signaling pathway by targeting the IL-6 receptors, its downstream effecters, or other molecules influencing this pathway appear to have considerable potential as new therapeutic or preventive challenges for keloid. Hopefully, several IL-6 blocking agents including a humanized antibody to IL-6 receptor have been developed and successfully used in clinical trials of inflammatory diseases. It is likely that these agents may prove worthy in the treatment or prevention of keloid as well. Future in-depth exploration of such challenges will shed light on their efficacy and safety for clinical application in keloid.
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Affiliation(s)
- Mohammad Ghazizadeh
- Department of Molecular Pathology, Institute of Gerontology, Postgraduate School of Medicine, Nippon Medical School.
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Sobral LM, Montan PF, Martelli-Junior H, Graner E, Coletta RD. Opposite effects of TGF-?1 and IFN-? on transdifferentiation of myofibroblast in human gingival cell cultures. J Clin Periodontol 2007; 34:397-406. [PMID: 17403017 DOI: 10.1111/j.1600-051x.2007.01063.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND/AIM Previously, we have shown that myofibroblasts, the main cell type associated with interstitial fibrosis, may be implicated with the gingival overgrowth observed in hereditary gingival fibromatosis (HGF) patients. The goal of this study was to determine whether transforming growth factor-beta1 (TGF-beta1) stimulates myofibroblast generation in gingival fibroblast cultures. Moreover, we analysed how interferon-gamma (IFN-gamma) interferes in this process. MATERIAL AND METHODS Fibroblast cultures from normal gingiva and myofibroblast cells from HGF were included in this study. To determine the effects of TGF-beta1 and IFN-gamma stimulation in these cells, the expression of the specific myofibroblast marker smooth muscle isoform of alpha-actin (alpha-SMA) was examined by semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), Western blot and immunofluorescence. Enzyme-linked immunosorbent assay (ELISA) for type I collagen was performed to measure the myofibroblast activity. RESULTS Our results demonstrated that TGF-beta1 promotes a dose- and time-dependent increase in the expression of alpha-SMA, whereas IFN-gamma blocks it and markedly prevents the fibroblast-myofibroblast switch induced by TGF-beta1 on normal gingiva cultures. IFN-gamma altered HGF myofibroblasts metabolism with a decrease of both alpha-SMA and type I collagen expression. Additionally, IFN-gamma treatment stimulated SMAD7 expression and inhibited connective tissue growth factor, which has been considered a key molecule to promote the transdifferentiation of myofibroblasts via TGF-beta1 activation. CONCLUSIONS These findings demonstrate that TGF-beta1 induces gingival fibroblast-myofibroblast transdifferentiation, whereas IFN-gamma blocks this process. More importantly, this study suggests that IFN-gamma may be clinically effective in attenuating excessive accumulation of extracellular matrix produced by myofibroblasts in HGF.
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Affiliation(s)
- Lays M Sobral
- Department of Oral Diagnosis, University of Campinas Dental School, Piracicaba, São Paulo, Brazil
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Häkkinen L, Csiszar A. Hereditary gingival fibromatosis: characteristics and novel putative pathogenic mechanisms. J Dent Res 2007; 86:25-34. [PMID: 17189459 DOI: 10.1177/154405910708600104] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Hereditary gingival fibromatosis (HGF) is a rare condition that can occur as an isolated disease or as part of a syndrome or chromosomal abnormality. In severe cases, the gingival enlargement may cover the crowns of teeth and cause severe functional and esthetic concerns. Histological and cell culture studies have uncovered some of the molecular and cellular changes associated with HGF. However, the pathogenesis of the disease is still largely unknown. Recent studies about the genetic characteristics of HGF have provided novel clues about the potential pathogenic mechanisms. In particular, mutation in the son-of-sevenless (SOS-1) gene has been associated with one form of the disease. However, HGF displays genetic heterogeneity, and mutations in other genes are also likely involved. This review outlines the current knowledge about the histological, cellular, and genetic characteristics of HGF. In addition, the potential role of the SOS-1 molecule and related novel intracellular signaling pathways in the pathogenesis of HGF will be discussed.
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Affiliation(s)
- L Häkkinen
- University of British Columbia, Faculty of Dentistry, Department of Oral Biological and Medical Sciences, Laboratory of Periodontal Biology, Vancouver, BC, Canada V6T 1Z3.
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46
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Dannewitz B, Edrich C, Tomakidi P, Kohl A, Gabbert O, Staehle HJ, Steinberg T. Elevated levels of gene expression for collagen and decorin in human gingival overgrowth. J Clin Periodontol 2006; 33:510-6. [PMID: 16820039 DOI: 10.1111/j.1600-051x.2006.00937.x] [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] [Indexed: 11/26/2022]
Abstract
OBJECTIVES It has been demonstrated that extracellular matrix molecules are involved in cyclosporine-induced gingival overgrowth (GO). However, for many of these molecules, it remains unclear whether their abundance is modulated on the protein and gene expression level. MATERIAL AND METHODS To contribute to this clarification, we have analysed the protein and mRNA expression of type-I collagen (COL1) and decorin (DC) in native specimens obtained from five patients with GO, and matched normal tissue using indirect immunofluorescence (IIM), in situ hybridization (ISH) and quantitative polymerase chain reaction (PCR). RESULTS IIF revealed a largely co-localized although remarkably increased abundance for COL1 and DC in GO. This increase coincided with an up-regulated gene expression observed for both molecules, as detected by ISH and quantitative PCR. CONCLUSIONS Analysis of our data clearly demonstrates elevated levels for COL1 and DC and shows for the first time in native human tissue that involvement of these genes in GO is not confined to the protein level but also includes the transcriptional level.
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Affiliation(s)
- Bettina Dannewitz
- Section of Periodontology, Department of Operative Dentistry and Periodontology, University of Heidelberg, Heidelberg, Germany
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Bitu CC, Sobral LM, Kellermann MG, Martelli-Junior H, Zecchin KG, Graner E, Coletta RD. Heterogeneous presence of myofibroblasts in hereditary gingival fibromatosis. J Clin Periodontol 2006; 33:393-400. [PMID: 16677327 DOI: 10.1111/j.1600-051x.2006.00928.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND/AIM Hereditary gingival fibromatosis (HGF) fibroblasts are characterized by an increased production of collagen and transforming growth factor-beta1 (TGF-beta1), resulting in a fibrotic enlargement of the gingiva of affected patients. A common feature of interstitial fibrosis is the occurrence of myofibroblasts, which are regarded as the predominant cells in matrix synthesis. The goal of this article is to describe the presence of myofibroblasts in HGF in order to elucidate the mechanisms underlying HGF gingival overgrowth. MATERIALS AND METHODS Fibroblast cell lines and gingival samples from patients of two distinct families affected by HGF and from normal gingiva (NG) were included in this study. To characterize the presence of myofibroblasts, the expression of specific myofibroblast marker smooth muscle isoform of alpha-actin (alpha-SMA) was examined by semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), Western blot, immunofluorescence, and flow cytometric analysis. Immunohistochemistry against the alpha-SMA antigen was performed in the gingival tissue samples. RESULTS Our results demonstrated a significant increase in the expression of the myofibroblast marker alpha-SMA in cells from one HGF family (designed as HGF Family 2), which are also characterized by an elevated expression of type I collagen, TGF-beta1 and connective tissue growth factor (CTGF). Additionally, alpha-SMA-positive cells were broadly detected in the gingival tissue samples from HGF Family 2 patients. In contrast, alpha-SMA expression by HGF Family 1 cells was quite similar to NG cells and no myofibroblasts were detected immunohistochemically, despite the higher levels of TGF-beta1 and type I collagen in HGF Family 1 fibroblasts than in NG cells. The expression of CTGF, which has been considered a key molecule to promote the transdifferentiation of myofibroblasts via TGF-beta1 activation, by HGF Family 1 cultures was significantly lower compared with HGF Family 2 and similar to NG control cells. CONCLUSIONS Our results suggest that the presence of myofibroblasts in HGF could be dependent on CTFG expression levels, and different biological mechanisms may account for the gingival overgrowth observed in HGF patients. This could be an underlying reason for the high variable clinical expressivity of disease.
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Affiliation(s)
- Carolina C Bitu
- Department of Oral Diagnosis, University of Campinas Dental School, Piracicaba, São Paulo, Brazil
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Radwan-Oczko M, Boratyńska M, Zietek M, Zołedziewska M, Jonkisz A. The Relationship of Transforming Growth Factor-β1 Gene Polymorphism, Its Plasma Level, and Gingival Overgrowth in Renal Transplant Recipients Receiving Different Immunosuppressive Regimens. J Periodontol 2006; 77:865-73. [PMID: 16671880 DOI: 10.1902/jop.2006.050086] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Cyclosporin A (CsA) induces gingival overgrowth (GO) in patients who seem to be prone to this disorder. It is still impossible to determine which patients will develop GO. Patients treated with the new immunosuppressive drug tacrolimus seem not to have GO. The aims of this study were to investigate transforming growth factor-beta1 (TGF-beta1) gene polymorphisms in renal transplant recipients treated with CsA or tacrolimus and to establish an association between these polymorphisms and TGF-beta1 plasma concentration and the incidence of GO. METHODS The examined group consisted of 134 renal transplant recipients. Ninety-two underwent CsA treatment (50 with and 42 without GO), and 42 underwent tacrolimus treatment. Age, gender, time after transplantation, calcineurin inhibitor total dosage, number of teeth, and sulcus bleeding index were analyzed. TGF-beta1 plasma levels were estimated in 60 CsA- and 30 tacrolimus-treated patients. Two biallelic polymorphisms of the TGF-beta1 gene were studied at codon 10 (at position +869) and at codon 25 (at position +915) in patients from the examined group and in 108 healthy volunteers (the control group). RESULTS The distribution of the high, intermediate, and low TGF-beta1 producer phenotypes was comparable in all the studied groups and in the healthy controls. The high producer phenotype was more frequent in patients with GO. TGF-beta1 levels in the CsA group showed correlation with the phenotypes. The lowest incidence of GO was observed in the 10C/C genotype, whereas the highest was observed in the 10T/C genotype. CONCLUSION High and intermediate TGF-beta1 producer phenotypes and heterozygous genotype 10T/C might be considered risk factors for GO in patients treated with CsA.
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Abstract
Generalized gingival enlargement can be caused by a variety of etiological factors. It can be inherited (hereditary gingival fibromatosis [HGF]); associated with other diseases characterizing a syndrome; or induced as a side effect of systemic drugs, such as phenytoin, cyclosporin, or nifedipine. HGF, previously known as elephantiasis gingivae, hereditary gingival hyperplasia, and hypertrophic gingiva, is a genetic disorder characterized by a progressive enlargement of the gingiva. This review will focus on diagnosis, treatment, and control of HGF. The pattern of inheritance, the histopathologic characteristics, and the known biologic and genetic features associated with HGF are also emphasized.
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Affiliation(s)
- Ricardo D Coletta
- Department of Oral Diagnosis, University of Campinas Dental School, Piracicaba, São Paulo, Brazil.
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50
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Lux A, Salway F, Dressman HK, Kröner-Lux G, Hafner M, Day PJR, Marchuk DA, Garland J. ALK1 signalling analysis identifies angiogenesis related genes and reveals disparity between TGF-beta and constitutively active receptor induced gene expression. BMC Cardiovasc Disord 2006; 6:13. [PMID: 16594992 PMCID: PMC1534055 DOI: 10.1186/1471-2261-6-13] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Accepted: 04/04/2006] [Indexed: 11/24/2022] Open
Abstract
Background TGF-β1 is an important angiogenic factor involved in the different aspects of angiogenesis and vessel maintenance. TGF-β signalling is mediated by the TβRII/ALK5 receptor complex activating the Smad2/Smad3 pathway. In endothelial cells TGF-β utilizes a second type I receptor, ALK1, activating the Smad1/Smad5 pathway. Consequently, a perturbance of ALK1, ALK5 or TβRII activity leads to vascular defects. Mutations in ALK1 cause the vascular disorder hereditary hemorrhagic telangiectasia (HHT). Methods The identification of ALK1 and not ALK5 regulated genes in endothelial cells, might help to better understand the development of HHT. Therefore, the human microvascular endothelial cell line HMEC-1 was infected with a recombinant constitutively active ALK1 adenovirus, and gene expression was studied by using gene arrays and quantitative real-time PCR analysis. Results After 24 hours, 34 genes were identified to be up-regulated by ALK1 signalling. Analysing ALK1 regulated gene expression after 4 hours revealed 13 genes to be up- and 2 to be down-regulated. Several of these genes, including IL-8, ET-1, ID1, HPTPη and TEAD4 are reported to be involved in angiogenesis. Evaluation of ALK1 regulated gene expression in different human endothelial cell types was not in complete agreement. Further on, disparity between constitutively active ALK1 and TGF-β1 induced gene expression in HMEC-1 cells and primary HUVECs was observed. Conclusion Gene array analysis identified 49 genes to be regulated by ALK1 signalling and at least 14 genes are reported to be involved in angiogenesis. There was substantial agreement between the gene array and quantitative real-time PCR data. The angiogenesis related genes might be potential HHT modifier genes. In addition, the results suggest endothelial cell type specific ALK1 and TGF-β signalling.
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Affiliation(s)
- Andreas Lux
- University Hospital Mannheim, 68167 Mannheim, University of Applied Sciences Mannheim, Windeckstr. 110, 68163 Mannheim, Germany
- Institute of Molecular and Cell Biology, University of Applied Sciences Mannheim, Windeckstr. 110, 68163 Mannheim, Germany
| | - Fiona Salway
- Centre for Integrated Genomic Medical Research, University of Manchester, Manchester, M13 9PT, UK
| | - Holly K Dressman
- Department of Molecular Genetics and Microbiology, DUMC, Durham, NC 27710, USA
- Duke Institute for Genome Sciences and Policy, DUMC, Durham, NC 27710, USA
| | | | - Mathias Hafner
- Institute of Molecular and Cell Biology, University of Applied Sciences Mannheim, Windeckstr. 110, 68163 Mannheim, Germany
| | - Philip JR Day
- Centre for Integrated Genomic Medical Research, University of Manchester, Manchester, M13 9PT, UK
| | - Douglas A Marchuk
- Department of Molecular Genetics and Microbiology, DUMC, Durham, NC 27710, USA
| | - John Garland
- Manchester Cardiovascular Research Group, University of Manchester, Department of Medicine, M13 9WL, UK
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