1
|
Han J, Han SC, Jeong HJ, Rhee SM, Kim YS, Jin YJ, Park SH, Oh JH. Recombinant Human Parathyroid Hormone Biocomposite Promotes Bone-to-Tendon Interface Healing by Enhancing Tenogenesis, Chondrogenesis, and Osteogenesis in a Rabbit Model of Chronic Rotator Cuff Tears. Arthroscopy 2024; 40:1093-1104.e2. [PMID: 38000485 DOI: 10.1016/j.arthro.2023.09.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 11/26/2023]
Abstract
PURPOSE To investigate the effect of recombinant human parathyroid hormone (rhPTH) biocomposite on bone-to-tendon interface (BTI) healing for surgical repair of a chronic rotator cuff tear (RCT) model of rabbit, focusing on genetic, histologic, biomechanical and micro-computed tomography (CT) evaluations. METHODS Sixty-four rabbits were equally assigned to the 4 groups: saline injection (group A), nanofiber sheet alone (group B), rhPTH-soaked nanofiber sheet (nanofiber sheet was soaked with rhPTH, group C), and rhPTH biocomposite (rhPTH permeated the nanofiber sheet by coaxial electrospinning, group D). The release kinetics of rhPTH (groups C and D) was examined for 6 weeks in vitro. Nanofiber scaffolds were implanted on the surface of the repair site 6 weeks after the induction of chronic RCT. Genetic and histologic analyses were conducted 4 weeks after surgery. Furthermore, genetic, histologic, biomechanical, micro-CT, and serologic analyses were performed 12 weeks after surgery. RESULTS In vivo, group D showed the highest collagen type I alpha 1 (COL1A1), collagen type III alpha 1 (COL3A1), and bone morphogenetic protein 2 (BMP-2) messenger RNA (mRNA) expression levels (all P < .001) 4 weeks after surgery; however, there were no differences between groups at 12 weeks postsurgery. After 12 weeks postsurgery, group D showed better collagen fiber continuity and orientation, denser collagen fibers, more mature bone-to-tendon junction, and greater fibrocartilage layer formation compared with the other groups (all P < .05). Furthermore, group D showed the highest load-to-failure rate (28.9 ± 2.0 N/kg for group A, 30.1 ± 3.3 N/kg for group B, 39.7 ± 2.7 N/kg for group C, and 48.2 ± 4.5 N/kg for group D, P < .001) and micro-CT outcomes, including bone and tissue mineral density, and bone volume/total volume rate (all P < .001) at 12 weeks postsurgery. CONCLUSIONS In comparison to rhPTH-soaked nanofiber sheet and the other control groups, rhPTH biocomposite effectively accelerated BTI healing by enhancing the mRNA expression levels of COL1A1, COL3A1, and BMP-2 at an early stage and achieving tenogenesis, chondrogenesis, and osteogenesis at 12 weeks after surgical repair of a chronic RCT model of rabbit. CLINICAL RELEVANCE The present study might be a transitional study to demonstrate the efficacy of rhPTH biocomposites on BTI healing for surgical repair of chronic RCTs as an adaptable polymer biomaterial in humans.
Collapse
Affiliation(s)
- Jian Han
- Department of Orthopaedic Surgery, The First People's Hospital of Huzhou, First Affiliated Hospital of Huzhou University, Huzhou, Zhejiang, China
| | - Sheng Chen Han
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Korea
| | - Hyeon Jang Jeong
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Korea
| | - Sung Min Rhee
- Department of Orthopedic Surgery, KyungHee University Medical Center, Seoul, Korea
| | - Yeong Seo Kim
- School of Mechanical Engineering, Pusan National University, Busan, Korea
| | - Yong Jun Jin
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea
| | - Suk-Hee Park
- School of Mechanical Engineering, Pusan National University, Busan, Korea.
| | - Joo Han Oh
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Korea.
| |
Collapse
|
2
|
Li Y, Qian Y, Qiao H, Pan W, Xie L, Li Y. Abaloparatide outperforms teriparatide in protecting against alveolar bone loss in experimental periodontitis. J Periodontol 2023; 94:244-255. [PMID: 35892139 DOI: 10.1002/jper.22-0211] [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: 07/04/2022] [Revised: 06/18/2022] [Accepted: 07/13/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND The aim of this study was to compare the effects of two osteoanabolic drugs, abaloparatide (ABL) and teriparatide (TPTD), on protecting alveolar bone in experimental periodontitis. METHODS Twenty-four 9-week-old, male, Sprague-Dawley rats were placed with silk suture around the right maxillary second molar, and then were randomly divided into three groups, that is, the ABL, TPTD, and saline group, receiving intermittent subcutaneous injections of ABL (80 μg/kg), TPTD (80 μg/kg) or saline respectively every other day for 4 weeks. Samples on both sides were assessed through micro-computerized tomography, histological, and immunohistochemical analysis. Mouse pre-osteoblast MC3T3 cell was cultured with lipopolysaccharide (LPS) and treated with ABL or TPTD, before assays of cell proliferation, alkaline phosphatase (ALP) activity and real-time polymerase chain reaction. RESULTS On the ligature side, both ABL and TPTD significantly reduced alveolar bone loss, and ABL had significantly better effects with higher expression of runt-related transcription factor 2 (RUNX2) and Bglap (formerly called osteocalcin); meanwhile, the ligature induced osteoclastogenesis and down-regulation of osteoprotegerin (OPG) was affected by neither drug. On the non-ligature side, ABL also showed better osteoanabolic effects. In vitro studies revealed that, in the presence of LPS, ABL, and TPTD similarly promoted MC3T3 proliferation, whereas ABL induced higher ALP activity and osteoblastic gene expression compared to TPTD. CONCLUSION Both ABL and TPTD protect and regenerate alveolar bone in experimental periodontitis, and ABL behaves even better than TPTD at the same dose, attributed to its stronger osteoanabolic effects in this context.
Collapse
Affiliation(s)
- Yuan Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuran Qian
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Qiao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weiyi Pan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Liang Xie
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
3
|
Meng L, Wei Y, Liang Y, Hu Q, Xie H. Stem cell homing in periodontal tissue regeneration. Front Bioeng Biotechnol 2022; 10:1017613. [PMID: 36312531 PMCID: PMC9607953 DOI: 10.3389/fbioe.2022.1017613] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022] Open
Abstract
The destruction of periodontal tissue is a crucial problem faced by oral diseases, such as periodontitis and tooth avulsion. However, regenerating periodontal tissue is a huge clinical challenge because of the structural complexity and the poor self-healing capability of periodontal tissue. Tissue engineering has led to advances in periodontal regeneration, however, the source of exogenous seed cells is still a major obstacle. With the improvement of in situ tissue engineering and the exploration of stem cell niches, the homing of endogenous stem cells may bring promising treatment strategies in the future. In recent years, the applications of endogenous cell homing have been widely reported in clinical tissue repair, periodontal regeneration, and cell therapy prospects. Stimulating strategies have also been widely studied, such as the combination of cytokines and chemokines, and the implantation of tissue-engineered scaffolds. In the future, more research needs to be done to improve the efficiency of endogenous cell homing and expand the range of clinical applications.
Collapse
Affiliation(s)
- Lingxi Meng
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yige Wei
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yaxian Liang
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qin Hu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Huixu Xie
- State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Huixu Xie,
| |
Collapse
|
4
|
Han J, Rhee SM, Kim YW, Park SH, Oh JH. Three-dimensionally printed recombinant human parathyroid hormone-soaked nanofiber sheet accelerates tendon-to-bone healing in a rabbit model of chronic rotator cuff tear. J Shoulder Elbow Surg 2022; 31:1628-1639. [PMID: 35337954 DOI: 10.1016/j.jse.2022.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 01/23/2022] [Accepted: 02/08/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Recombinant human parathyroid hormone (rhPTH) promotes tendon-to-bone healing in humans and animals with rotator cuff tear (RCT). However, problems regarding repeated systemic rhPTH injections in humans exist. This study was conducted to evaluate the effect of topical rhPTH administration using 3-dimensionally (3D) printed nanofiber sheets on tendon-to-bone healing in a rabbit RCT model compared to that of direct topical rhPTH administration. METHODS Eighty rabbits were randomly assigned to 5 groups (n = 16 each). To create the chronic RCT model, we induced complete supraspinatus tendon tears in both shoulders and left them untreated for 6 weeks. All transected tendons were repaired in a transosseous manner with saline injection in group A, hyaluronic acid (HA) injection in group B, 3D-printed nanofiber sheet fixation in group C, rhPTH and HA injection in group D, and 3D-printed rhPTH- and HA-soaked nanofiber sheet fixation in group E. Genetic (messenger RNA expression evaluation) and histologic evaluations (hematoxylin and eosin and Masson trichrome staining) were performed in half of the rabbits at 4 weeks postrepair. Genetic, histologic, and biomechanical evaluations (mode of tear and load to failure) were performed in the remaining rabbits at 12 weeks. RESULTS For genetic evaluation, group E showed a higher collagen type I alpha 1 expression level than did the other groups (P = .008) at 4 weeks. However, its expression level was downregulated, and there was no difference at 12 weeks. For histologic evaluation, group E showed greater collagen fiber continuity, denser collagen fibers, and more mature tendon-to-bone junction than did the other groups (P = .001, P = .001, and P = .003, respectively) at 12 weeks. For biomechanical evaluation, group E showed a higher load-to-failure rate than did the other groups (P < .001) at 12 weeks. CONCLUSION Three-dimensionally printed rhPTH-soaked nanofiber sheet fixation can promote tendon-to-bone healing of chronic RCT.
Collapse
Affiliation(s)
- Jian Han
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Republic of Korea
| | - Sung Min Rhee
- Department of Orthopaedic Surgery, KyungHee University Medical Center, Seoul, Republic of Korea
| | - Young Won Kim
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
| | - Suk Hee Park
- School of Mechanical Engineering, Pusan National University, Republic of Korea.
| | - Joo Han Oh
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Republic of Korea.
| |
Collapse
|
5
|
Lyu P, Li B, Li P, Bi R, Cui C, Zhao Z, Zhou X, Fan Y. Parathyroid Hormone 1 Receptor Signaling in Dental Mesenchymal Stem Cells: Basic and Clinical Implications. Front Cell Dev Biol 2021; 9:654715. [PMID: 34760881 PMCID: PMC8573197 DOI: 10.3389/fcell.2021.654715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 09/28/2021] [Indexed: 02/05/2023] Open
Abstract
Parathyroid hormone (PTH) and parathyroid hormone-related protein (PTHrP) are two peptides that regulate mineral ion homeostasis, skeletal development, and bone turnover by activating parathyroid hormone 1 receptor (PTH1R). PTH1R signaling is of profound clinical interest for its potential to stimulate bone formation and regeneration. Recent pre-clinical animal studies and clinical trials have investigated the effects of PTH and PTHrP analogs in the orofacial region. Dental mesenchymal stem cells (MSCs) are targets of PTH1R signaling and have long been known as major factors in tissue repair and regeneration. Previous studies have begun to reveal important roles for PTH1R signaling in modulating the proliferation and differentiation of MSCs in the orofacial region. A better understanding of the molecular networks and underlying mechanisms for modulating MSCs in dental diseases will pave the way for the therapeutic applications of PTH and PTHrP in the future. Here we review recent studies involving dental MSCs, focusing on relationships with PTH1R. We also summarize recent basic and clinical observations of PTH and PTHrP treatment to help understand their use in MSCs-based dental and bone regeneration.
Collapse
Affiliation(s)
- Ping Lyu
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Bo Li
- State Key Laboratory of Oral Diseases, Department of Orthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peiran Li
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ruiye Bi
- State Key Laboratory of Oral Diseases, Department of Oral and Maxillofacial Surgery, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chen Cui
- Guangdong Province Key Laboratory of Stomatology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| |
Collapse
|
6
|
Chen J, Zhang Y, Gao J, Li T, Gan X, Yu H. Sirtuin 3 deficiency exacerbates age-related periodontal disease. J Periodontal Res 2021; 56:1163-1173. [PMID: 34591326 PMCID: PMC9293453 DOI: 10.1111/jre.12930] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/26/2021] [Indexed: 02/05/2023]
Abstract
Background Sirtuin 3 (SIRT3), a mitochondrial NAD+‐dependent deacetylase, has received much attention for its effect on metabolism and aging. However, the role of SIRT3 in periodontal disease remains unknown. Objective This study aimed to investigate the functional role of SIRT3 in age‐related periodontal disease and underlying mechanisms. Methods Sixteen mice were randomly assigned into four groups: the young wild type (WT), the aged WT, the young SIRT3‐knockout (KO), and the aged SIRT3‐KO. SIRT3 and cyclophilin D (CypD) expression and protein lysine acetylation levels in alveolar bones were detected by western blot. The bone architecture and the distance of CEJ‐ABC were assessed using micro‐CT and HE staining. The osteoclast number was observed through tartrate‐resistant acid phosphatase (TRAP) staining. Mitochondrial morphology in SIRT3 knockdown MC3T3‐E1 osteoblastic cells was analyzed by Immunofluorescence staining. In gingival tissues, the NAD+/NADH ratio was measured, and oxidative stress was detected by MitoSOX staining, HO‐1 staining, and MnSOD expression. Mitochondrial biogenesis was measured by PGC‐1α expression and oxygen consumption rate (OCR). Results In parallel with the imbalanced NAD+/NADH ratio, the SIRT3 expression was significantly decreased in the alveolar bones of the aged mice, accompanied by a global elevation of protein acetylation levels. The aged SIRT3‐KO group showed the highest rate of bone resorption and the largest number of TRAP‐positive osteoclasts among the four groups. Moreover, the reactive oxygen species level was up‐regulated in the young and the aged SIRT3‐KO groups. SIRT3 deficiency promoted mitochondrial fission and increased the CypD expression. Furthermore, the lack of SIRT3 reduced the PGC‐1α expression in gingival tissues and exhibited a significant reduction in maximal OCR. Conclusion Reduced SIRT3 abundance contributes to aged‐related periodontal disease via the exacerbation of oxidative stress and mitochondrial dysfunction.
Collapse
Affiliation(s)
- Junsheng Chen
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Faculty of Medicine and Dentistry, Department of Cell Biology, University of Alberta, Edmonton, Alberta, Canada
| | - Yarong Zhang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jing Gao
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tao Li
- West China-Washington Mitochondria and Metabolism Center and Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Xueqi Gan
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Haiyang Yu
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
7
|
Reis CLB, Barbosa MCF, de Lima DC, Madalena IR, Baratto-Filho F, Proff P, de Oliveira DSB, Paddenberg E, Küchler EC, Kirschneck C. Study of Dental Caries and PTH Gene. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.703549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Parathyroid hormone (PTH) is essential for calcium and phosphate homeostasis in odontogenesis-related cells. Therefore, the present study aimed to investigate the association between single nucleotide polymorphisms in the gene encoding PTH, and dental caries in Brazilian children. Three hundred and fifty-three children (170 boys and 183 girls, age ranging from 8 to 11 years old) were included in this study. The International System for Detection and Assessment of Carious Lesions (ICDAS) was used for diagnosis of dental caries. Visible biofilm was also evaluated during the clinical examination. Genomic DNA was extracted from saliva for real-time PCR to evaluate the single nucleotide polymorphisms rs6256, rs307247 and rs694 in PTH gene. Dental caries was classified in ICDAS0 vs. ICDAS1−6 or ICDAS1−2 vs. ICDAS3−6. Chi-square test, binary logistic regression adjusted by biofilm and haplotype analyses were performed (p < 0.05). Biofilm was associated with dental caries (p < 0.05). There were no associations between dental caries and rs6256, rs307247, rs694 in none of the analyses performed (p > 0.05). In conclusion, the present study supports that the single nucleotide polymorphisms rs6256, rs307247, and rs694 in the PTH-encoding gene are not associated with dental caries in Brazilian children.
Collapse
|
8
|
Koca CG, Sadry S, Asker H, Çiçek MF, Kösehasanoğulları M, Kaya G. Effects of the different administration frequencies of teriparatide (PTH [1-34]) on new bone formation of expanded midpalatal sutures in rats: A histomorphometric and micro-computed tomography analysis. Orthod Craniofac Res 2021; 24:449-457. [PMID: 34169642 DOI: 10.1111/ocr.12512] [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: 02/14/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of the study was to evaluate the effect of 4 μg/kg teriparatide administered at intermittent and continuous frequencies on bone formation in the expanded midpalatal suture region using histomorphometric and micro-computed tomography (micro-Ct) analysis. Settings and sample population: In this study, 24 Sprague Dawley male rats were used. METHODS The experimental animals were divided into 3 groups as follows: Group 1: only maxillary expansion, Group 2: maxillary expansion with continuous teriparatide administration (2 μg in the morning and 2 μg in the evening) and Group 3: maxillary expansion with intermittent teriparatide administration (daily 4 μg/kg). The expansion appliance was fixed to maxillary incisors of all animals within the 5-day expansion period, followed by a 12-day retention phase. Animals were sacrificed at the end of the retention period, and specimens were evaluated by micro-Ct and histomorphometric analysis respectively. RESULTS The results of the histomorphometric analysis showed that Group 3 had the highest number of osteoblasts (1042 ± 90.76) (P < .01). In addition, the results of micro-Ct analysis revealed that Group 3 had the highest bone volume/total volume (16% ± 0), bone mineral density (173.82 ± 2.6 mgHA/cm3 ) and least midpalatal suture width (0.13 ± 0.001 mm) (P < .01). Osteoblasts number and micro-Ct analysis values of Group 2 were higher than those of Group 1 but no significant differences between them (P > .01). CONCLUSION Intermittently administered TP (4 μg/kg once a day) was seen to enhance bone formation and mineralization. In the future, it can be used in drug studies that will increase or stimulate bone formation as well as in the midpalatal suture area.
Collapse
Affiliation(s)
- Cansu Gül Koca
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Uşak University, Usak, Turkey, 64400, Turkey
| | - Sanaz Sadry
- Department of Orthodontics, Faculty of Dentistry, Istanbul Aydın University, Istanbul, Turkey, Turkey
| | - Hasan Asker
- Basic Sciences-Histology and Embryology Department, Medical Faculty, Uşak University, Uşak, Turkey, Turkey
| | - Muhammet Fatih Çiçek
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Uşak University, Usak, Turkey, 64400, Turkey
| | - Meryem Kösehasanoğulları
- Department of Physiatrist, Training and Education Hospital, Uşak University, Uşak, Turkiye, Turkey
| | - Gürkan Kaya
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Sakarya University, Sakarya, Turkey, Turkey
| |
Collapse
|
9
|
Parathyroid Hormone Gene and Genes Involved in the Maintenance of Vitamin D Levels Association with Mandibular Retrognathism. J Pers Med 2021; 11:jpm11050369. [PMID: 34063310 PMCID: PMC8147469 DOI: 10.3390/jpm11050369] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/26/2021] [Accepted: 04/30/2021] [Indexed: 01/05/2023] Open
Abstract
In this study we evaluated whether single nucleotide polymorphisms (SNPs) in the genes encoding PTH, VDR, CYP24A1, and CYP27B1 were associated with mandibular retrognathism (MR). Samples from biologically-unrelated Brazilian patients receiving orthodontic treatment were included in this study. Pre-orthodontic lateral cephalograms were used to determine the phenotype. Patients with a retrognathic mandible were selected as cases and those with an orthognathic mandible were selected as controls. Genomic DNA was used for genotyping analysis of SNPs in PTH (rs694, rs6256, and rs307247), VDR (rs7975232), CYP24A1 (rs464653), and CYP27B1 (rs927650). Chi-squared or Fisher’s tests were used to compare genotype and allele distribution among groups. Haplotype analysis was performed for the SNPs in PTH. The established alpha was p < 0.05. Multifactor dimensionality reduction (MDR) was used to identify SNP–SNP interactions. A total of 48 (22 males and 26 females) MR and 43 (17 males and 26 females) controls were included. The linear mandibular and the angular measurements were statistically different between MR and controls (p < 0.05). In the genotype and allele distribution analysis, the SNPs rs694, rs307247, and rs464653 were associated with MR (p < 0.05). MDR analyses predicted the best interaction model for MR was rs694–rs927650, followed by rs307247–rs464653–rs927650. Some haplotypes in the PTH gene presented statistical significance. Our results suggest that SNPs in PTH, VDR, CYP24A1, and CYP27B1 genes are associated with the presence of mandibular retrognathism.
Collapse
|
10
|
Hathaway-Schrader JD, Novince CM. Maintaining homeostatic control of periodontal bone tissue. Periodontol 2000 2021; 86:157-187. [PMID: 33690918 DOI: 10.1111/prd.12368] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alveolar bone is a unique osseous tissue due to the proximity of dental plaque biofilms. Periodontal health and homeostasis are mediated by a balanced host immune response to these polymicrobial biofilms. Dysbiotic shifts within dental plaque biofilms can drive a proinflammatory immune response state in the periodontal epithelial and gingival connective tissues, which leads to paracrine signaling to subjacent bone cells. Sustained chronic periodontal inflammation disrupts "coupled" osteoclast-osteoblast actions, which ultimately result in alveolar bone destruction. This chapter will provide an overview of alveolar bone physiology and will highlight why the oral microbiota is a critical regulator of alveolar bone remodeling. The ecology of dental plaque biofilms will be discussed in the context that periodontitis is a polymicrobial disruption of host homeostasis. The pathogenesis of periodontal bone loss will be explained from both a historical and current perspective, providing the opportunity to revisit the role of fibrosis in alveolar bone destruction. Periodontal immune cell interactions with bone cells will be reviewed based on our current understanding of osteoimmunological mechanisms influencing alveolar bone remodeling. Lastly, probiotic and prebiotic interventions in the oral microbiota will be evaluated as potential noninvasive therapies to support alveolar bone homeostasis and prevent periodontal bone loss.
Collapse
Affiliation(s)
- Jessica D Hathaway-Schrader
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Chad M Novince
- Department of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| |
Collapse
|
11
|
Inagaki Y, Kido JI, Nishikawa Y, Kido R, Sakamoto E, Bando M, Naruishi K, Nagata T, Yumoto H. Gan-Lu-Yin (Kanroin), Traditional Chinese Herbal Extracts, Reduces Osteoclast Differentiation In Vitro and Prevents Alveolar Bone Resorption in Rat Experimental Periodontitis. J Clin Med 2021; 10:jcm10030386. [PMID: 33498415 PMCID: PMC7926381 DOI: 10.3390/jcm10030386] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/10/2021] [Accepted: 01/15/2021] [Indexed: 12/30/2022] Open
Abstract
Gan-Lu-Yin (GLY), a traditional Chinese herbal medicine, shows therapeutic effects on periodontitis, but that mechanism is not well known. This study aims to clarify the precise mechanism by investigating the inhibitory effects of GLY extracts on osteoclastogenesis in vitro and on bone resorption in periodontitis in vivo. RAW264.7 cells are cultured with soluble receptor activator of nuclear factor-kappa B (sRANKL) and GLY extracts (0.01–1.0 mg/mL), and stained for tartrate-resistant acid phosphatase (TRAP) to evaluate osteoclast differentiation. Experimental periodontitis is induced by placing a nylon ligature around the second maxillary molar in rats, and rats are administered GLY extracts (60 mg/kg) daily for 20 days. Their maxillae are collected on day 4 and 20, and the levels of alveolar bone resorption and osteoclast differentiation are estimated using micro-computed tomography (CT) and histological analysis, respectively. In RAW264.7 cells, GLY extracts significantly inhibit sRANKL-induced osteoclast differentiation at a concentration of more than 0.05 mg/mL. In experimental periodontitis, administering GLY extracts significantly decreases the number of TRAP-positive osteoclasts in the alveolar bone on day 4, and significantly inhibits the ligature-induced bone resorption on day 20. These results show that GLY extracts suppress bone resorption by inhibiting osteoclast differentiation in experimental periodontitis, suggesting that GLY extracts are potentially useful for oral care in periodontitis.
Collapse
|
12
|
Koca CG, Kösehasanoğulları M. Evaluation of single-dose applied teriparatide effect on bone healing with histomorphometric and micro-ct analysis. J Craniomaxillofac Surg 2020; 49:98-103. [PMID: 33384204 DOI: 10.1016/j.jcms.2020.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/12/2020] [Accepted: 12/08/2020] [Indexed: 01/21/2023] Open
Abstract
The aim of the present study was to evaluate the effects of a single dose of locally administered teriparatide (TP) on healing critical-sized defects in rat mandibles through histomorphometric and microcomputed tomography (micro-CT) analyses. In this study, 48 Sprague-Dawley rats were used. The experimental animals were divided into 4 groups as follows: Group 1 had empty defects, Group 2 received autografts, Group 3 received allografts, and Group 4 received allografts combined with 40 μg of TP. Eight weeks after the surgical procedure, all rats were sacrificed, and all specimens were evaluated using micro-CT and histomorphometric analyses. The results of the histomorphometric analysis showed that Group 4 had the most new bone area (0.85 mm2 ± 0.13 mm2) (p = 0.002) and the highest number of osteoblasts (86.61 ± 4.86) (p = 0.001). In addition, the results of the micro-CT analysis showed that Group 4 had the highest bone volume/total volume (23.27% ± 0.15%) (p = 0.001). The histomorphometric and micro-CT values of Group 2 were higher than those of Group 1 but lower than those of Group 3 and Group 4. The results of the study show that a single dose of locally administered TP has a positive effect on the integration of allografts. However, further studies are necessary to identify the mechanism of action and the effective minimum and maximum doses of locally administered TP.
Collapse
Affiliation(s)
- Cansu Gül Koca
- Usak University Dentistry Faculty Department of Oral and Maxillofacial Surgery, Uşak, Turkey.
| | - Meryem Kösehasanoğulları
- Usak Training and Research Hospital, Department of Physical Therapy and Rehabilitation, Usak, Turkey.
| |
Collapse
|
13
|
Kim J, Kim HY, Kim WH, Kim JW, Kim MJ. Effect of PTH and corticotomy on implant movement under mechanical force. BMC Oral Health 2020; 20:315. [PMID: 33172437 PMCID: PMC7653691 DOI: 10.1186/s12903-020-01310-4] [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: 07/28/2020] [Accepted: 11/02/2020] [Indexed: 11/16/2022] Open
Abstract
Background Osseointegrated implants are considered as clinically non-movable. Parathyroid hormone (PTH) is known to play a significant role in the regulation of bone remodeling and in intermittent, low doses, result in osteoanabolic effects. This study aimed to investigate the effects of PTH and corticotomy, both under traction force, on osseointegrated implants. Methods Four implants—two in each hemimandible—were placed in each of the three study mongrels. Each mongrels were designated as control, normal dose PTH (PTH-1), and high dose PTH (PTH-2) groups, with each groups further subdivided into non-surgery implant and surgery implant. After osseointegration, mechanical force with NiTi closed coil springs (500 g) was applied around each implants. Corticotomy was performed around one of four implants in each mongrels. Parathyroid hormone was administered locally on a weekly basis for 20 weeks. Clinical movement of the implants were evaluated with the superimposed 3D- scanned data, bone- microarchitectural and histologic examinations. Results Superimposition analysis showed continuous movement of the non-surgery implant of PTH-1 group. Movement was further justified with lowest bone implant contact (adjusted BIC; 44.77%) in histomorphometric analysis. Upregulation of bone remodeling around the implant was observed in the normal dose PTH group. In the surgery implants, the remarkably higher adjusted BIC compared to the non-surgery implants indicated increased bone formation around the implant surface. Conclusion The results indicate that the catabolic and anabolic balance of osseointegrated implants in terms of bone remodeling can be shifted via various interventions including pharmacological, surgical and mechanical force. Clinical relevance Upregulated bone remodeling by PTH and corticotomy under continuous mechanical force showed the possible implications for the movement of osseointegrated dental implant.
Collapse
Affiliation(s)
- Jiyeon Kim
- School of Medicine, Ewha Womans University, Seoul, South Korea
| | - Heon-Young Kim
- Department of Oral and Maxillofacial Surgery, School of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yangcheon-gu, Seoul, 158-710, South Korea
| | - Won-Ho Kim
- Department of Orthodontics, School of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yangcheon-gu, Seoul, 158-710, South Korea
| | - Jin-Woo Kim
- Department of Oral and Maxillofacial Surgery, School of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yangcheon-gu, Seoul, 158-710, South Korea.
| | - Min-Ji Kim
- Department of Orthodontics, School of Medicine, Ewha Womans University, Anyangcheon-ro 1071, Yangcheon-gu, Seoul, 158-710, South Korea.
| |
Collapse
|
14
|
Stutz C, Batool F, Petit C, Strub M, Kuchler-Bopp S, Benkirane-Jessel N, Huck O. Influence of parathyroid hormone on periodontal healing in animal models: A systematic review. Arch Oral Biol 2020; 120:104932. [PMID: 33113458 DOI: 10.1016/j.archoralbio.2020.104932] [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: 04/26/2020] [Revised: 07/10/2020] [Accepted: 09/21/2020] [Indexed: 12/09/2022]
Abstract
OBJECTIVES The purpose of this systematic review was to determine the potential interest of parathyroid hormone (PTH) as an adjunct to periodontal treatment based on studies performed in rodents. MATERIALS & METHODS Electronic databases (MEDLINE, Web of Science) were searched up to December 2019. Studies assessing the impact of PTH administration in experimental periodontitis in rodents have been identified. RESULTS Amongst the 247 identified articles, 10 met the inclusion criteria and were included in this systematic review. Experimental periodontitis was mainly induced by ligature placement or surgically with a dental bur. All studies considered bone healing after PTH administration at different frequencies as primary outcome. Results showed that an intermittent administration of PTH promoted bone healing and neovascularization. Nevertheless, a decrease of soft tissue inflammation was also observed. CONCLUSION Intermittent administration of PTH appears to enhance significantly periodontal healing and to promote alveolar bone regeneration. However, due to the risk of side effects, the development of scaffolds allowing its local and time-controlled delivery is of importance.
Collapse
Affiliation(s)
- Céline Stutz
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Fareeha Batool
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Catherine Petit
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marion Strub
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sabine Kuchler-Bopp
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Nadia Benkirane-Jessel
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Olivier Huck
- INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France; Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France; Pôle de Médecine et de Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
| |
Collapse
|
15
|
Hashimura S, Kido J, Matsuda R, Yokota M, Matsui H, Inoue-Fujiwara M, Inagaki Y, Hidaka M, Tanaka T, Tsutsumi T, Nagata T, Tokumura A. A low level of lysophosphatidic acid in human gingival crevicular fluid from patients with periodontitis due to high soluble lysophospholipase activity: Its potential protective role on alveolar bone loss by periodontitis. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158698. [PMID: 32179099 DOI: 10.1016/j.bbalip.2020.158698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 01/21/2023]
Abstract
We previously detected a submicromolar concentration of lysophosphatidic acid (LPA) in human saliva. Here, we compare LPA concentrations in human gingival crevicular fluid (GCF) from patients with periodontitis and healthy controls, and examine how the local LPA levels are regulated enzymatically. The concentrations of LPA and its precursor lysophospholipids in GCF was measured by liquid chromatography-tandem mass spectrometry. The LPA-producing and LPA-degrading enzymatic activities were measured by quantifying the liberated choline and free fatty acid, respectively. The concentration of LPA in GCF of periodontitis patients was lower than that of healthy controls, due to higher soluble lysophospholipase activity toward LPA. LPA was found to prevent survival of Sa3, a human gingival epithelium-derived tumor cell line, activate Sa3 through Ca2+ mobilization, and release interleukin 6 from Sa3 in vitro. Furthermore, local injection of LPA into the gingiva attenuated ligature-induced experimental alveolar bone loss induced by oral bacteria inoculation in a rat model of periodontitis in vivo. A high concentration of LPA in human GCF is necessary to maintain normal gingival epithelial integrity and function, protecting the progression of periodontitis.
Collapse
Affiliation(s)
- Satoru Hashimura
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan
| | - Junichi Kido
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushioma 770-8504, Japan
| | - Risa Matsuda
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan
| | - Miho Yokota
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan
| | - Hirokazu Matsui
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan
| | - Manami Inoue-Fujiwara
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushioma 770-8504, Japan
| | - Mayumi Hidaka
- Department of Life Science, Faculty of Pharmacy, Yasuda Women's University, Hiroshima 730-0153, Japan
| | - Tamotsu Tanaka
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan; Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - Toshihiko Tsutsumi
- Department of Pharmaceutical Sciences, Kyushu University of Health and Welfare, Nobeoka 882-8508, Japan
| | - Toshihiko Nagata
- Department of Periodontology and Endodontology, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushioma 770-8504, Japan
| | - Akira Tokumura
- Department of Pharmaceutical Health Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Shomachi, Tokushima 770-8505, Japan; Department of Life Science, Faculty of Pharmacy, Yasuda Women's University, Hiroshima 730-0153, Japan.
| |
Collapse
|
16
|
Yoon JP, Chung SW, Jung JW, Lee YS, Kim KI, Park GY, Kim HM, Choi JH. Is a Local Administration of Parathyroid Hormone Effective to Tendon-to-Bone Healing in a Rat Rotator Cuff Repair Model? J Orthop Res 2020; 38:82-91. [PMID: 31441073 DOI: 10.1002/jor.24452] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/02/2019] [Indexed: 02/04/2023]
Abstract
To evaluate the effect of local parathyroid hormone (PTH) administration on rotator cuff tendon-to-bone healing in a rat model compared with systemic PTH injection and untreated controls. PTH-alginate scaffold was prepared and sustained release of PTH was confirmed. Bilateral supraspinatus tendon repairs were performed in 39 rats (group 1, supraspinatus repair only; group 2, supraspinatus repair with systemic PTH injection; group 3, supraspinatus repair with local PTH administration via an absorbable scaffold; n = 13 each). Biomechanical (cross-sectional area, mode of failure, load to failure, and ultimate stress: right side) and histological analyses (hematoxylin and eosin stain, Masson's Trichrome stain Picrosirius red stain, Immunohistochemistry for BMP2, PTH1R, ColI, and ColIII: Left side) were performed to evaluate tendon-to-bone healing quality at 8 weeks after repair, and blood test (osteocalcin and procollagen type I N-terminal pro-peptide [PINP] levels) was performed in all rats. There was no intergroup difference in the healing failure rate (p = 0.910) or failure mode (p = 0.585). Biomechanically, subjects in groups 2 and 3 exhibited significantly larger cross-sectional areas and higher ultimate failure loads and ultimate stress than those in group 1 (all p < 0.05); however, no differences were noted between groups 2 and 3 (all p > 0.05). Histologically, groups 2 and 3 exhibited more organized tendon-to-bone interface structures with higher density, parallel orientation, and collagen fiber continuity than group 1 (all p < 0.05 except collagen fiber continuity in group 1 vs. 2); however, no differences in histological parameters between groups 2 and 3 (all p > 0.05). The protein levels of bone morphogenic protein 2, PTH 1 receptor, and collagen I and III and the serum level of PINP were increased in groups 2 and 3 versus group 1 (all p < 0.05) without showing differences between groups 2 and 3 (all p > 0.05). Local PTH administration using an absorbable scaffold improved the biomechanical and histological outcomes of rotator cuff tendon-to-bone healing comparable with systemic PTH injection at 8 weeks after repair in a rat model. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:82-91, 2020.
Collapse
Affiliation(s)
- Jong Pil Yoon
- Department of Orthopaedic Surgery, College of Medicine, Kyung Pook National University, Daegu, Korea
| | - Seok Won Chung
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Jae Wook Jung
- Department of Orthopaedic Surgery, College of Medicine, Kyung Pook National University, Daegu, Korea
| | - Yong-Soo Lee
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Kwang-Il Kim
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Ga Young Park
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
| | - Hun-Min Kim
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
| | - Jin-Hyun Choi
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
| |
Collapse
|
17
|
Yoshida W, Matsugami D, Murakami T, Bizenjima T, Imamura K, Seshima F, Saito A. Combined effects of systemic parathyroid hormone (1-34) and locally delivered neutral self-assembling peptide hydrogel in the treatment of periodontal defects: An experimental in vivo investigation. J Clin Periodontol 2019; 46:1030-1040. [PMID: 31292977 DOI: 10.1111/jcpe.13170] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 12/13/2022]
Abstract
AIM To evaluate in vivo combination therapy of systemic parathyroid hormone (PTH) and locally delivered neutral self-assembling peptide (SAP) hydrogel for periodontal treatment. MATERIALS AND METHODS Viability/proliferation of rat periodontal ligament cells in a neutral SAP nanofibre hydrogel (SPG-178) was evaluated using WST-1 assay. Periodontal defects were created mesially to the maxillary first molars in 40 Wistar rats. Defects were filled with 1.5% SPG-178 or left unfilled. Animals received PTH (1-34) or saline injections every 2 days. Microcomputed tomography, histological, and immunohistochemical examinations were used to evaluate healing at 2 or 4 weeks postoperative. RESULTS At 72 hr, cells in 1.5% SPG-178 showed increased viability/proliferation compared to cells in 0.8% SPG-178 or untreated controls. In vivo, systemic PTH resulted in significantly greater bone volume in the Unfilled group at 2 weeks (p = .01) and 4 weeks (p < .0001) than in the saline control. At 4 weeks, a significantly greater bone volume was observed in the PTH/SPG-178 (p = .0003) and PTH/Unfilled (p = .004) groups than in Saline/SPG-178 group. Histologically, greater bone formation was observed in PTH/SPG-178 at 4 weeks than in other groups. In the PTH/SPG-178 group, increased proportions of PCNA-, VEGF-, and Osterix-positive cells were observed in the treated sites. CONCLUSIONS These findings suggest that intermittent systemic PTH and locally delivered neutral SAP hydrogel enhance periodontal healing.
Collapse
Affiliation(s)
- Wataru Yoshida
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | | | - Tasuku Murakami
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | | | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Tokyo, Japan.,Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| |
Collapse
|
18
|
Locally administrated single-dose teriparatide affects critical-size rabbit calvarial defects: A histological, histomorphometric and micro-CT study. ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA 2019; 53:478-484. [PMID: 31530436 PMCID: PMC6938999 DOI: 10.1016/j.aott.2019.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/08/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effect of teriparatide (PTH 1-34, rhPTH) on a rabbit defect model with local xenogen grafts histomorphometrically and radiologically. METHODS For this purpose, two 10 mm diameter critical-size defects were created in the calvaria of 16 rabbits. In the control group, the defect area was filled with a xenogen graft, while in the teriparatide group (PTH 1-34), a xenogen graft combination with 20 mcg teriparatide was used. For both 4 - week and 8 - week study groups, new bone, residual graft, and soft tissue areas were evaluated as well as bone volume histomorphometrically and radiologically. RESULTS Histomorphometrically, there was a significant difference in new bone area values at the 8th week (p < 0.05), but there was no significant difference between the 4 - week values (p > 0.05). There was no statistically significant difference between the groups at both 4 and 8 weeks (p > 0.05). In the radiologically measured total bone volume values, PTH1-34 group values were found to be significantly higher for both 4 - and 8 - weeks values compared to the control groups (p < 0.05). CONCLUSION In this study, rhPTH, which is used locally in defect areas to be repaired with bone grafts, increases both new bone volume and total bone volume.
Collapse
|
19
|
Lerner UH, Kindstedt E, Lundberg P. The critical interplay between bone resorbing and bone forming cells. J Clin Periodontol 2019; 46 Suppl 21:33-51. [DOI: 10.1111/jcpe.13051] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 11/05/2018] [Accepted: 12/01/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Ulf H. Lerner
- Centre for Bone and Arthritis Research at Department of Internal Medicine and Clinical Nutrition; Institute of Medicine; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Department of Odontology; Division of Molecular Periodontology; Umeå University; Umeå Sweden
| | - Elin Kindstedt
- Department of Odontology; Division of Molecular Periodontology; Umeå University; Umeå Sweden
| | - Pernilla Lundberg
- Department of Odontology; Division of Molecular Periodontology; Umeå University; Umeå Sweden
| |
Collapse
|
20
|
Deliberador FR, Sebastiani AM, Gerber J, Bonetto L, Tórtora G, Giovanini AF, Deliberador TM, Zielak JC, Scariot R. Effect of Local Application of Alendronate and Parathyroid Hormone on Craniofacial Bone Repair - a Preliminary Study. Braz Dent J 2018; 29:435-445. [PMID: 30517441 DOI: 10.1590/0103-6440201802120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 04/17/2018] [Indexed: 02/08/2023] Open
Abstract
This study aimed to evaluate the effect of two methods of local application of alendronate and parathyroid hormone (PTH) on bone repair and the systemic implications. A critically sized defect (5 mm) was created in the cranial region of twenty-five male Wistar rats, and the bone removed was particulated, and grafted back to the defect with different treatments. The animals were randomly divided into five groups: A1- bone graft immersion in alendronate solution (3 mg/kg) for 5 minutes; P1- bone graft immersion in PTH solution (20 µg); A2- weekly local applications of alendronate 1 mg/kg; P2- weekly local applications of PTH (20 µg); C- no drugs were used. The animals were euthanized 60 days after surgery. Cranial bone blocks were removed for histological, histomorphometric, and immunohistochemical analyses. MMP-2 and MMP-9 were used for immunolabeling. The kidneys, liver, and brain were also removed from all the rats for histological analysis. The data were submitted for statistical analysis with a level of significance of 0.05 (One-way ANOVA). The group C and group P2 presented a higher quantity of viable bone particles than the remaining groups. Groups A1, A2, and P1 presented with fewer viable bone particles than the control group, with a predominance of non-mineralized connective tissue. The histomorphometric analysis revealed no differences in relative bone area or MMP-2 or MMP-9 immunolabeling between the groups (p>0.05). Group A2 showed presence of fat in the liver consistent with hepatic steatosis. Changes in brain tissue were observed in groups A1 and P1.
Collapse
|
21
|
Kim JH, Kim AR, Choi YH, Kim A, Sohn Y, Woo GH, Cha JH, Bak EJ, Yoo YJ. Intermittent PTH administration improves alveolar bone formation in type 1 diabetic rats with periodontitis. J Transl Med 2018; 16:70. [PMID: 29544500 PMCID: PMC5856320 DOI: 10.1186/s12967-018-1438-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 03/05/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Periodontitis is an infectious disease that manifests as alveolar bone loss surrounding the roots of teeth. Diabetes aggravates periodontitis-induced alveolar bone loss via suppression of bone formation. Intermittent parathyroid hormone (PTH) administration displays an anabolic effect on bone. In this study, we investigated the effect of intermittent PTH administration on alveolar bone loss in type 1 diabetic rats with periodontitis. METHODS Rats were divided into control (C), periodontitis (P), periodontitis treated with PTH (P + PTH), diabetes with periodontitis (DP), and diabetes with periodontitis treated with PTH (DP + PTH) groups. To induce type 1 diabetes, rats were injected with streptozotocin and periodontitis was induced bilaterally by applying ligatures to the mandibular first molars for 30 days. During the experimental period, the P + PTH and DP + PTH groups were subcutaneously injected with PTH (40 μg/kg) three times per week, whereas the C, P, and DP groups were injected with citrate buffer. To observe the mineralization of the alveolar bone, the DP and DP + PTH groups were injected with calcein on days 10 and 27, and with alizarin red on day 20. Thirty days after ligation, histological findings and fluorescence labeling were analyzed in the furcations of the mandibular first molars. Sclerostin-positive osteocytes were assessed by immunohistochemical analyses. RESULTS The DP groups had smaller areas of alveolar bone than the other groups, and the DP + PTH group had a larger alveolar bone area than the DP group. The DP group had less osteoid formation than the C group, whereas the DP + PTH had greater osteoid formation than the DP group. Fluorescence labeling results revealed that the DP + PTH group had more mineral deposition on the alveolar bone than the DP group. The DP + PTH group exhibited lower percentage of sclerostin-positive osteocytes in alveolar bone than the DP group. CONCLUSIONS Intermittent PTH administration diminishes alveolar bone loss and sclerostin expression in osteocytes, but increases osteoid formation and mineralization, suggesting that intermittent PTH administration attenuates diabetes-aggravated alveolar bone loss by the induction of bone formation. PTH-induced bone formation may be related to the regulation of osteocytic sclerostin expression in type 1 diabetic rats with periodontitis.
Collapse
Affiliation(s)
- Ji-Hye Kim
- Department of Dental Hygiene, Jeonju Kijeon College, Jeonju, Republic of Korea
| | - Ae Ri Kim
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea.,Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, Republic of Korea.,BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Yun Hui Choi
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Aeryun Kim
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Yongsung Sohn
- DONG-A Pharm, Yongin-si, Gyeonggi-Do, Republic of Korea
| | - Gye-Hyeong Woo
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Republic of Korea
| | - Jeong-Heon Cha
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea.,Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, Republic of Korea.,BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea.,Microbiology and Molecular Biology, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Eun-Jung Bak
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
| | - Yun-Jung Yoo
- Department of Oral Biology, Yonsei University College of Dentistry, 134 Sinchon dong, Seodaemun-gu, Seoul, 120-752, Republic of Korea. .,Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, Republic of Korea.
| |
Collapse
|
22
|
Wada-Mihara C, Seto H, Ohba H, Tokunaga K, Kido JI, Nagata T, Naruishi K. Local administration of calcitonin inhibits alveolar bone loss in an experimental periodontitis in rats. Biomed Pharmacother 2018; 97:765-770. [DOI: 10.1016/j.biopha.2017.10.165] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/13/2022] Open
|
23
|
Auersvald CM, Santos FR, Nakano MM, Leoni GB, de Sousa Neto MD, Scariot R, Giovanini AF, Deliberador TM. The local administration of parathyroid hormone encourages the healing of bone defects in the rat calvaria: Micro-computed tomography, histological and histomorphometric evaluation. Arch Oral Biol 2017; 79:14-19. [PMID: 28282513 DOI: 10.1016/j.archoralbio.2017.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the effect of a single-dose local administration of PTH on bone healing in rat calvarial bone defects by means of micro-computed tomography, histological and histomorphometric analysis. DESIGN Critical-size cranial osteotomy defects were created in 42 male rats. The animals were randomly divided into 3 groups. In the C Group, the bone defect was only filled with a blood clot. In the S Group, it was filled with a collagen sponge and covered with bovine cortical membrane. In the PTH Group, the defect was filled with a collagen sponge soaked with PTH and covered with bovine cortical membrane. The groups were further split in two for euthanasia 15 and 60days post-surgery. Data was statistically analyzed with t-tests for independent samples or the nonparametric Mann-Whitney test when applicable. Intragroup comparisons were analyzed with paired t-tests (p<0.05). RESULTS Micro-CT analysis results did not demonstrate statistically significant intergroup differences. At 15days post-surgery, the histomorphometric analysis showed that the PTH Group exhibited a significantly higher percentage of bone formation compared with the S Group. At 60days post-surgery, a higher percentage of new bone was observed in the PTH group. CONCLUSION The results suggest that the local administration of PTH encouraged the bone healing in critical-size calvarial defects in rats.
Collapse
Affiliation(s)
- Caroline Moreira Auersvald
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil
| | - Felipe Rychuv Santos
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil
| | - Mayara Mytie Nakano
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil
| | - Graziela Bianchi Leoni
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Avenida do Café, s/no - Campus da USP Ribeirão Preto, SP, CEP 14040-904, Brazil
| | - Manoel Damião de Sousa Neto
- Departamento de Odontologia Restauradora, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Avenida do Café, s/no - Campus da USP Ribeirão Preto, SP, CEP 14040-904, Brazil
| | - Rafaela Scariot
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil
| | - Allan Fernando Giovanini
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil
| | - Tatiana Miranda Deliberador
- Graduate Program in Dentistry, Universidade Positivo, R. Prof. Pedro Viriato Parigot de Souza, 5300 - Cidade Industrial, Curitiba, PR, 81280-330, Brazil.
| |
Collapse
|
24
|
Kuraji R, Ito H, Fujita M, Ishiguro H, Hashimoto S, Numabe Y. Porphyromonas gingivalis induced periodontitis exacerbates progression of non-alcoholic steatohepatitis in rats. Clin Exp Dent Res 2016; 2:216-225. [PMID: 29744170 PMCID: PMC5839206 DOI: 10.1002/cre2.41] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/22/2016] [Accepted: 07/01/2016] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a chronic liver disease that can develop into hepatocirrhosis and hepatic carcinoma. In recent years, epidemiological and animal studies have reported that Porphyromonas gingivalis (P. gingivalis), a known periodontopathic bacteria, is closely related to NASH. However, previous studies could not demonstrate a direct relationship between periodontitis, P. gingivalis infection, and NASH. The purpose of the present study was to examine the impact of P. gingivalis-associated periodontitis on the onset and progression of NASH. Forty-two male Wistar rats were used in this study. Rats were fed a high-fat diet (HFD) for 12 weeks in order to induce fatty liver. At 4 weeks from the start of feeding, the animals were performed ligature placement around the maxillary first molar tooth in order to induce experimental periodontitis, and then a P. gingivalis slurry was applied around the ligature twice in a week for 8 weeks (HFD/Pg(+) group). Controls were given the slurry without P. gingivalis after ligature placement using the same protocol (HFD/Pg(-) group). Significant increases in alveolar bone resorption and inflammation in periodontal tissue around the molar tooth in the HFD/Pg(+) group were observed when compared with the HFD/Pg(-) group. Moreover, histological images showing NASH characterized by perivenular lipid deposition including big fatty drops, ballooning degeneration, and focal necrosis with inflammatory cells were confirmed in the liver of rats in the HFD/Pg(+) group. Significant increases in alanine aminotransaminase, aspartate aminotransferase, and C-reactive protein levels were observed in the HFD/Pg(+) group. Furthermore, endotoxin levels in serum in the HFD/Pg(+) group were significantly higher than those in the HFD/Pg(-) group. The present study demonstrated that experimental periodontitis induced by P. gingivalis led to the progression of NASH in rats with fatty liver. Increased levels of endotoxin derived from P. gingivalis infection appear to play a considerable role in the progression of NASH.
Collapse
Affiliation(s)
- Ryutaro Kuraji
- Department of PeriodontologySchool of Life Dentistry at Tokyo, Nippon Dental University1‐9‐20 FujimiChiyoda‐kuTokyo102‐8159Japan
| | - Hiroshi Ito
- Department of PeriodontologySchool of Life Dentistry at Tokyo, Nippon Dental University1‐9‐20 FujimiChiyoda‐kuTokyo102‐8159Japan
| | - Miyako Fujita
- Department of PeriodontologySchool of Life Dentistry at Tokyo, Nippon Dental University1‐9‐20 FujimiChiyoda‐kuTokyo102‐8159Japan
| | - Hitomi Ishiguro
- Department of PeriodontologySchool of Life Dentistry at Tokyo, Nippon Dental University1‐9‐20 FujimiChiyoda‐kuTokyo102‐8159Japan
| | | | - Yukihiro Numabe
- Department of PeriodontologySchool of Life Dentistry at Tokyo, Nippon Dental University1‐9‐20 FujimiChiyoda‐kuTokyo102‐8159Japan
| |
Collapse
|
25
|
Bhattarai G, Kook SH, Kim JH, Poudel SB, Lim SS, Seo YK, Lee JC. COMP-Ang1 prevents periodontitic damages and enhances mandible bone growth in an experimental animal model. Bone 2016; 92:168-179. [PMID: 27612438 DOI: 10.1016/j.bone.2016.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/02/2016] [Accepted: 09/05/2016] [Indexed: 12/23/2022]
Abstract
COMP-Ang1, a chimera of angiopoietin-1 (Ang1) and a short coiled-coil domain of cartilage oligomeric matrix protein (COMP), is under consideration as a therapeutic agent enhancing tissue regeneration with increased angiogenesis. However, the effect of COMP-Ang1 on periodontitic tissue damages and the related mechanisms are not yet investigated. We initially explored whether a local delivery of COMP-Ang1 protects lipopolysaccharide (LPS)/ligature-induced periodontal destruction in rats. As the results, μCT and histological analyses revealed that COMP-Ang1 inhibits LPS-mediated degradation of periodontium. COMP-Ang1 also suppressed osteoclast number and the expression of osteoclast-specific and inflammation-related molecules in the inflamed region of periodontitis rats. Implanting a COMP-Ang1-impregnated scaffold into critical-sized mandible bone defects enhanced the amount of bone in the defects with increased expression of bone-specific markers. The addition of COMP-Ang1 prevented significantly osteoclast differentiation and activation in LPS-stimulated RAW264.7 macrophages and inhibited the phosphorylation of c-Jun, mitogen-activated protein kinases, and cAMP response element-binding protein in the cells. On contrary, COMP-Ang1 increased the level of phosphatidylinositol 3-kinase (PI3K) in LPS-exposed macrophages and a pharmacological PI3K inhibitor diminished the anti-osteoclastogenic effect of COMP-Ang1. Similarly, COMP-Ang1 blocked the expression of inflammation-related molecules in LPS-stimulated human periodontal ligament fibroblasts (hPLFs). Further, the COMP-Ang1 enhanced differentiation of hPLFs into osteoblasts by stimulating the expression of bone-specific markers, Tie2, and activator protein-1 subfamily. Collectively, our findings may support the therapeutic potentials of COMP-Ang1 in preventing inflammatory periodontal damages and in stimulating new bone growth.
Collapse
Affiliation(s)
- Govinda Bhattarai
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju 54896, South Korea
| | - Sung-Ho Kook
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju 54896, South Korea; Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, South Korea
| | - Jae-Hwan Kim
- Chonnam National University Dental Hospital, Kwangju 61186, South Korea
| | - Sher Bahadur Poudel
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju 54896, South Korea
| | - Shin-Saeng Lim
- School of Dentistry and Dental Research Institute, Seoul National University, Seoul 08826, South Korea
| | - Young-Kwon Seo
- Research Institute of Biotechnology, Dongguk University, Seoul 04620, South Korea
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju 54896, South Korea; Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, South Korea.
| |
Collapse
|
26
|
Du L, Feng R, Ge S. PTH/SDF-1α cotherapy promotes proliferation, migration and osteogenic differentiation of human periodontal ligament stem cells. Cell Prolif 2016; 49:599-608. [PMID: 27523567 DOI: 10.1111/cpr.12286] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 07/11/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES Stromal cell-derived factor-1α (SDF-1α) plays an important role in tissue regeneration in various tissues including the periodontium. A potential limitation for its use derives from its sensitivity to cleavage by dipeptidyl peptidase-IV (DPP-IV). Parathyroid hormone (PTH) reduces enzymatic activity of DPP-IV and is suggested to be a promising agent for periodontal tissue repair. The purpose of this study was to provide insight into how SDF-1α and intermittent PTH treatment might affect proliferation, migration and osteogenic differentiation of human periodontal ligament stem cells (PDLSCs) in vitro. MATERIALS AND METHODS PDLSCs were isolated by the limiting dilution method. Surface markers were quantified by flow cytometry. Cell-counting kit-8 (CCK8), cell migration assay, alkaline phosphatase (ALP) activity assay, alizarin red staining and RT-PCR were used to determine viability, migration and osteogenic differentiation of PDLSCs. RESULTS PDLSCs were positive for CD44, CD73, CD90, CD105, CD166 and STRO-1 and negative for CD14, CD34 and CD45. PTH/SDF-1α cotherapy significantly promoted cell proliferation, chemotactic capability, ALP activity and mineral deposition (P<.05). Gene expression level of bone sialoprotein (BSP), runt-related transcription factor 2 (Runx2) and osteocalcin (OCN) were all up-regulated (P<.05). CONCLUSIONS PTH/SDF-1α cotherapy promoted proliferation, migration and osteogenic differentiation of PDLSCs in vitro. Cotherapy seemed to have potential to promote periodontal tissue regeneration by facilitating chemotaxis of PDLSCs to the injured site, followed by promoting proliferation and osteogenic differentiation of these cells.
Collapse
Affiliation(s)
- Lingqian Du
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China
| | - Ruijuan Feng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China. .,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China.
| |
Collapse
|
27
|
Wang F, Du L, Ge S. PTH/SDF-1α cotherapy induces CD90+CD34- stromal cells migration and promotes tissue regeneration in a rat periodontal defect model. Sci Rep 2016; 6:30403. [PMID: 27480134 PMCID: PMC4969616 DOI: 10.1038/srep30403] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 06/30/2016] [Indexed: 01/19/2023] Open
Abstract
Stromal cell-derived factor-1α (SDF-1α) is a key stem cell homing factor that is crucial for recruitment of stem cells to many diseased organs. However, the therapeutic activity of SDF-1α is potentially limited by N-terminal cleavage at position-2 proline by a cell surface protein CD26/dipeptidyl peptidase-IV (DPP-IV). Parathyroid hormone (PTH) is a DPP-IV inhibitor and has been suggested as a promising agent for periodontal tissue repair. The purpose of this study was to explore the effects of a cell-free system comprising SDF-1α and scaffold plus PTH systemic application on periodontal tissue regeneration in vivo. The results showed that PTH/SDF-1α cotherapy improved the quantity of regenerated bone and resulted in better organization of ligament interface. We further investigated the possible mechanisms, and found that PTH/SDF-1α cotherapy enhanced CD90+CD34- stromal cells migration in vivo, increased the number of CXCR4 + cells in periodontal defects, induced early bone osteoclastogenesis and enhanced the expression of runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP) and collagen I (Col I) in newly formed bone tissue. In conclusion, this cell-free tissue engineering system with local administration of SDF-1α and systemic application of PTH could be employed to induce CD90+CD34- stromal cells recruitment and promote periodontal tissue regeneration.
Collapse
Affiliation(s)
- Fang Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China
| | - Lingqian Du
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China
| | - Shaohua Ge
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Periodontology, School of Stomatology, Shandong University, Jinan, China
| |
Collapse
|
28
|
Antonoglou GN, Knuuttila M, Niemelä O, Ylöstalo P, Raunio T, Hiltunen L, Karttunen R, Tervonen T. Serum parathyroid hormone and active vitamin D in chronic periodontitis. J Clin Periodontol 2015. [DOI: 10.1111/jcpe.12436] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Georgios N. Antonoglou
- Department of Periodontology and Geriatric Dentistry; Research Group of Oral Health Sciences; University of Oulu; Oulu Finland
| | - Matti Knuuttila
- Department of Periodontology and Geriatric Dentistry; Research Group of Oral Health Sciences; University of Oulu; Oulu Finland
- Medical Research Center; Oulu University Hospital and University of Oulu; Oulu Finland
| | - Onni Niemelä
- Medical Research Unit; Seinäjoki Central Hospital and University of Tampere; Tampere Finland
| | - Pekka Ylöstalo
- Department of Periodontology and Geriatric Dentistry; Research Group of Oral Health Sciences; University of Oulu; Oulu Finland
- Insitute of Dentistry; University of Eastern Finland; Kuopio Finland
- Department of Oral and Maxillofacial Surgery; Kuopio University Hospital; Kuopio Finland
| | - Taina Raunio
- Specialist Dental Health Care Unit; City of Oulu; Oulu Finland
| | | | - Riitta Karttunen
- Institute of Diagnostics; Department of Medical Microbiology and Immunology; University of Oulu; Oulu Finland
- Department of Bacteriology and Immunology; Haartman Institute; Laboratory Division (HUSLAB); Helsinki University Central Hospital; University of Helsinki; Helsinki Finland
| | - Tellervo Tervonen
- Department of Periodontology and Geriatric Dentistry; Research Group of Oral Health Sciences; University of Oulu; Oulu Finland
- Medical Research Center; Oulu University Hospital and University of Oulu; Oulu Finland
| |
Collapse
|
29
|
Tamaki N, Cristina Orihuela-Campos R, Inagaki Y, Fukui M, Nagata T, Ito HO. Resveratrol improves oxidative stress and prevents the progression of periodontitis via the activation of the Sirt1/AMPK and the Nrf2/antioxidant defense pathways in a rat periodontitis model. Free Radic Biol Med 2014; 75:222-9. [PMID: 25091897 DOI: 10.1016/j.freeradbiomed.2014.07.034] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 07/09/2014] [Accepted: 07/24/2014] [Indexed: 02/04/2023]
Abstract
Oxidative stress is a key factor regulating the systemic pathophysiological effects associated with periodontitis. Resveratrol is a phytochemical with antioxidant and anti-inflammatory properties that can reduce oxidative stress and inflammation. We hypothesized that resveratrol may prevent the progression of periodontitis and reduce systemic oxidative stress through the activation of the sirtuin 1 (Sirt1)/AMP-activated protein kinase (AMPK) and the nuclear factor E2-related factor 2 (Nrf2)/antioxidant defense pathways. Three groups of male Wistar rats (periodontitis treated with melinjo resveratrol, periodontitis without resveratrol, and control rats with no periodontitis or resveratrol treatment) were examined. A ligature was placed around the maxillary molars for 3 weeks to induce periodontitis, and the rats were then given drinking water with or without melinjo resveratrol. In rats with periodontitis, ligature placement induced alveolar bone resorption, quantified using three-dimensional images taken by micro-CT, and increased proinflammatory cytokine levels in gingival tissue. Melinjo resveratrol intake relieved alveolar bone resorption and activated the Sirt1/AMPK and the Nrf2/antioxidant defense pathways in inflamed gingival tissues. Further, melinjo resveratrol improved the systemic levels of 8-hydroxydeoxyguanosine, dityrosine, nitric oxide metabolism, nitrotyrosine, and proinflammatory cytokines. We conclude that oral administration of melinjo resveratrol may prevent the progression of ligature-induced periodontitis and improve systemic oxidative and nitrosative stress.
Collapse
Affiliation(s)
- Naofumi Tamaki
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan.
| | - Rita Cristina Orihuela-Campos
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Yuji Inagaki
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Makoto Fukui
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Toshihiko Nagata
- Department of Periodontology and Endodontology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| | - Hiro-O Ito
- Department of Preventive Dentistry and Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8504, Japan
| |
Collapse
|
30
|
Cho AR, Kim JH, Lee DE, Lee JS, Jung UW, Bak EJ, Yoo YJ, Chung WG, Choi SH. The effect of orally administered epigallocatechin-3-gallate on ligature-induced periodontitis in rats. J Periodontal Res 2013; 48:781-9. [PMID: 23581513 DOI: 10.1111/jre.12071] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2013] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Epigallocatechin-3-gallate (EGCG) is known for its beneficial properties, including anti-inflammatory and anti-oxidative activities. Recently, reports have suggested that EGCG plays a pivotal role in regulating cytokine expression and osteoclastic activity. In the present study, we investigated whether orally administered EGCG has a therapeutic effect on ligature-induced periodontitis. MATERIALS AND METHODS Forty-eight Sprague-Dawley rats were treated with EGCG or phosphate-buffered saline. Periodontitis was induced by tying a ligature for 7 d. After removing ligation, EGCG (200 mg/kg) or phosphate-buffered saline was administered via oral gavage on a daily basis. Rats were killed after 1, 2 and 4 wk of administration. Histologic and histomorphometric analyses, tartrate resistant acid phosphatase staining and immunohistochemistry were carried out. RESULTS In the control group, bone loss did not recover even after the causative factor of periodontitis was eliminated. On the other hand, distance from cemento-enamel junction to alveolar bone crest, long junctional epithelium and collagen destruction were reduced in the EGCG group. Decreased interleukin (IL)-6 expression was shown from the early stage of EGCG administration, followed by reduced tumor necrosis factor (TNF) expression at week 4 EGCG group. The CT area showed a higher decrease of IL-6 expression between the control and EGCG group than alveolar bone area. Downregulation of TNF and IL-6 expression led to a decrease in osteoclast number and activity, which resulted in reduced bone loss. CONCLUSIONS Systemic administration of EGCG could have a therapeutic effect on damaged periodontal tissue. Inhibited cytokine expression, including TNF and IL-6 is responsible for the reduction in osteoclast formation, osteoclastic activity and collagen destruction.
Collapse
Affiliation(s)
- A-R Cho
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea; Department of Applied Life Science, The Graduate School, Yonsei University, Seoul, South Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Price U, Le HOT, Powell SE, Schmid MJ, Marx DB, Zhang Y, Wang D, Narayana N, Reinhardt RA. Effects of local simvastatin-alendronate conjugate in preventing periodontitis bone loss. J Periodontal Res 2012; 48:541-8. [DOI: 10.1111/jre.12036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2012] [Indexed: 11/28/2022]
Affiliation(s)
- U. Price
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - H. -O. T. Le
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - S. E. Powell
- Department of Growth and Development; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - M. J. Schmid
- Research/Administration; University of Nebraska Medical Center; College of Dentistry; Lincoln NE USA
| | - D. B. Marx
- Department of Statistics; University of Nebraska; Lincoln NE USA
| | - Y. Zhang
- Department of Pharmaceutical Sciences; University of Nebraska Medical Center; College of Pharmacy; Omaha NE USA
| | - D. Wang
- Department of Pharmaceutical Sciences; University of Nebraska Medical Center; College of Pharmacy; Omaha NE USA
| | - N. Narayana
- Department of Oral Biology; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| | - R. A. Reinhardt
- Department of Surgical Specialties; University of Nebraska Medical Center, College of Dentistry; Lincoln NE USA
| |
Collapse
|