1
|
Xiong X, Li C, Guo L, Wu Y, Wang Y, Song X. Effect of Intracapsular Pressure on Decompression Effectiveness. Int Dent J 2022; 72:839-846. [DOI: 10.1016/j.identj.2022.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/01/2022] Open
|
2
|
Man QW, Li RF, Li SR, Wang J, Bu LL, Zhao Y, Liu B. Single-Cell RNA Sequencing Reveals CXCLs Enriched Fibroblasts Within Odontogenic Keratocysts. J Inflamm Res 2022; 14:7359-7369. [PMID: 34992422 PMCID: PMC8713881 DOI: 10.2147/jir.s342951] [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: 10/06/2021] [Accepted: 12/10/2021] [Indexed: 12/02/2022] Open
Abstract
Purpose We aimed to define cell subpopulations of odontogenic keratocyst (OKC), particularly relating to angiogenesis and explored the potential regulation mechanism for angiogenesis. Materials and Methods Single-cell RNA sequencing (scRNA-seq) analysis was investigated on 14,072 cells from 3 donors with OKC. The differential expressed genes, cell trajectory and intercellular communications were evaluated by bioinformatic analysis. Hydrostatic pressure (80 mmHg, 6h) was applied to the primary fibroblasts of OKC and the supernatant was collected for cytokines detection by cytokine antibody array. The chemokine (C-X-C motif) ligand 12 (CXCL12) and CD31 expressions were explored by immunohistochemistry in tissue microarray of OKC. Results Five different cell types were identified in the epithelium of OKC and 3 different cell types in the OKC fibroblasts were characterized, indicating high intra-lesional heterogeneity. CXCLs were highly enriched in the subset of fibroblasts and showed close interactions with endothelial cells. Hydrostatic pressure (80mmHg) significantly increased CXCL12 secretions in OKC fibroblasts. Stromal CXCL12 expressions were closely related to CD31 expressions of tissue microarray of OKC. Conclusion CXCLs enriched fibroblasts are crucial for angiogenesis of OKCs which could be partially regulated by hydrostatic pressure.
Collapse
Affiliation(s)
- Qi-Wen Man
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.,Department of Oral and Maxillofacial Head Neck Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Rui-Fang Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Su-Ran Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Jing Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Lin-Lin Bu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.,Department of Oral and Maxillofacial Head Neck Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Yi Zhao
- Department of Prosthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Bing Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China.,Department of Oral and Maxillofacial Head Neck Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| |
Collapse
|
3
|
Elhakim A, Kim S, Kim E, Elshazli AH. Preserving the vitality of teeth adjacent to a large radicular cyst in periapical microsurgery: a case report with 4-year follow-up. BMC Oral Health 2021; 21:382. [PMID: 34344347 PMCID: PMC8336380 DOI: 10.1186/s12903-021-01738-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022] Open
Abstract
Background Radicular cysts may enlarge considerably, cause extensive bone destruction, and jeopardize the integrity of the associated vital teeth. The different treatment approaches are aimed mainly at eliminating the cystic epithelial membrane while reducing the risk of injury to vital structures. Contrary to other treatment modalities, preapical surgery offers an unequivocal single occasion resolution for the patient. However, it has been associated with higher risk of collateral damages. Case presentation A patient presented with a large radicular cyst originating from a maxillary lateral incisor. The adjacent central and canine teeth initially failed to exhibit responses to sensibility tests but showed signs of vitality. Microsurgical management was aimed at enucleating the cystic membrane while maintaining adjacent teeth vitality. Upon careful and controlled cyst enucleation under the dental operating microscope, the neurovascular bundle of one of the involved teeth was visualized and its integrity was maintained throughout the procedure. Results The procedure was successful and follow up recalls revealed recovery of normal sensibility of tooth 11 and 13 with complete bone regeneration around their apices. Conclusion Within the limitation of the present case report, we demonstrated that complete excision of large periapical cyst can be performed without sacrificing the vitality of the adjacent teeth, by preserving the integrity of their neurovascular supply through controlled microsurgical enucleation, and by a potential apical vascular repair ensuing unintended injury. Diagnosing the pulp vitality of non-offending teeth whose apices protrude into the cystic lumen is a complex process and can be misleading. Pressure from the growing cyst can inhibit vital teeth responses to neural-based sensibility tests leading to false negative results. Thus, in such cases, the use of blood perfusion-based vitality testing is recommended for correct initial diagnosis.
Collapse
Affiliation(s)
- Ahmed Elhakim
- Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt.,Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sunil Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Euiseong Kim
- Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Alaa H Elshazli
- Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt.
| |
Collapse
|
4
|
Zhong WQ, Li ZZ, Jiang H, Zou YP, Wang HT, Cai Y, Zhao Y, Zhao JH. Elevated ATF4 Expression in Odontogenic Keratocysts Epithelia: Potential Involvement in Tissue Hypoxia and Stromal M2 Macrophage Infiltration. J Histochem Cytochem 2019; 67:801-812. [PMID: 31424999 DOI: 10.1369/0022155419871550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to investigate the expression of the activating transcription factor 4 (ATF4) in odontogenic keratocysts (OKC), its association with hypoxia and M2-polarized macrophages infiltration, and its potential relationships with angiogenesis in OKC. The expression of ATF4, hypoxia-inducible factor 1α (HIF-1α), macrophage colony-stimulating factor (M-CSF), and receptor activator of nuclear factor κ-B ligand (RANKL) in OKC samples and normal oral mucosa (OM) was detected by immunohistochemistry. Meanwhile, microvessel density (MVD) was measured using antibody against CD31. M2-polarized macrophages were identified using double-staining for CD68+ and CD163+. The correlations of ATF4 with HIF-1α, M-CSF, and M2-polarized macrophages infiltration were determined by Spearman's rank correlation test and hierarchical clustering. Human immortalized oral epithelial cells (HIOECs) were used in in vitro experiments. Our data showed that the expression of HIF-1α, ATF4, and M-CSF was significantly upregulated in the epithelium of OKC when compared with the OM. The expression of ATF4 was positively correlated with that of HIF-1α, M-CSF, MVD, and M2-polarized macrophages infiltration. Elevated expression of ATF4 in the epithelial lining of OKC may facilitate the M2 macrophages infiltration in response to hypoxia, leading to the development of OKC.
Collapse
Affiliation(s)
- Wen-Qun Zhong
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhi-Zheng Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hao Jiang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yan-Ping Zou
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hai-Tao Wang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yu Cai
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yi Zhao
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ji-Hong Zhao
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| |
Collapse
|
5
|
Cho YS, Jung IY. Complete Healing of a Large Cystic Lesion Following Root Canal Treatment with Concurrent Surgical Drainage: A Case Report with 14-Year Follow-Up. J Endod 2019; 45:343-348. [DOI: 10.1016/j.joen.2018.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 12/20/2022]
|
6
|
Al-Rawi NH, Al-Siraj AK, Majeed AH. Comparison of osteoclastogenesis and local invasiveness of ameloblastoma and keratocystic odontogenic tumor. Eur J Dent 2018; 12:36-42. [PMID: 29657523 PMCID: PMC5883474 DOI: 10.4103/ejd.ejd_54_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objectives: The aim of this study was to compare the expression of receptor-activated nuclear factor kappa B (RANK) with its ligand (RANKL) and matrix metalloproteinase-2 (MMP2) in solid/multicystic ameloblastomas (ABs) and keratocystic odontogenic tumors (KOTs). Materials and Methods: The expression of MMP2, RANK, and RANKL molecules was evaluated in 13 ABs and 14 KOTs by immunohistochemistry. The expressions were calculated in the odontogenic epithelial cells as well as the stromal cells. Results: Odontogenic epithelia of AB expressed MMP2, RANK, and RANKL significantly higher than that of KOTs (P < 0.05). The expression of MMP2, RANK, and RANKL was highest in plexiform subtype (79.9%, 81.08%, and 65.1%, respectively). KOTs without daughter epithelia nests expressed both MMP2 and RANK the least (56.06% and 47.5%, respectively). Stromal cells, on the other hand, expressed similar MMP2 pattern in odontogenic epithelia of both AB and KOT. RANKL was expressed weaker in the stromal cells of both lesions. Conclusion: Invasive biological and osteolytic behaviors of both lesions were evaluated in this study. It was found to be more in AB than keratocystic odontogenic. A significant expression of MMP2, RANK, and RANKL in both KOTs associated with microcyst and plexiform type AB as well.
Collapse
Affiliation(s)
- Natheer H Al-Rawi
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ammar K Al-Siraj
- Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ahlam H Majeed
- Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Baghdad, Iraq
| |
Collapse
|
7
|
Ogata S, Kubota Y, Yamashiro T, Takeuchi H, Ninomiya T, Suyama Y, Shirasuna K. Signaling Pathways Regulating IL-1α-induced COX-2 Expression. J Dent Res 2016; 86:186-91. [PMID: 17251521 DOI: 10.1177/154405910708600215] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Interleukin-1α(IL-1α) stimulates the production of prostaglandin E2 (PGE2) in odontogenic keratocyst fibroblasts. However, the signaling pathways remain obscure. In this study, we investigated IL-1αsignaling pathways that regulate cyclooxygenase-2 (COX-2) expression in odontogenic keratocyst fibroblasts. IL-1αincreased the expression of COX-2 mRNA and protein, and PGE2 secretion in the fibroblasts. IL-1αincreased the phosphorylation of extracellular signal-regulated protein kinase-1/2 (ERK1/2), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK). PD-98059, SB-203580, SP-600125, and PDTC—which are inhibitors of ERK1/2, p38, JNK, and nuclear factor-κB (NF-κB), respectively—attenuated the IL-1α-induced COX-2 mRNA expression and activated protein kinase C PGE2 secretion. IL-1α(PKC), and PKC inhibitor staurosporine inhibited IL-1α-induced phosphorylation of ERK1/2, p38, and JNK, and decreased IL-1α-induced COX-2 mRNA expression. Thus, in odontogenic keratocyst fibroblasts, IL-1αmay stimulate COX-2 expression both through the PKC-dependent activation of ERK1/2, p38, and JNK signaling pathways, and through the NF-κB cascade.
Collapse
Affiliation(s)
- S Ogata
- Department of Oral and Maxillofacial Surgery, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | | | | | | | | | | | | |
Collapse
|
8
|
Cunha JF, Gomes CC, de Mesquita RA, Andrade Goulart EM, de Castro WH, Gomez RS. Clinicopathologic features associated with recurrence of the odontogenic keratocyst: a cohort retrospective analysis. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 121:629-35. [DOI: 10.1016/j.oooo.2016.01.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 01/08/2023]
|
9
|
TGF-β in jaw tumor fluids induces RANKL expression in stromal fibroblasts. Int J Oncol 2016; 49:499-508. [PMID: 27279422 PMCID: PMC4922833 DOI: 10.3892/ijo.2016.3548] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/16/2016] [Indexed: 12/24/2022] Open
Abstract
Odontogenic tumors and cysts, arising in the jawbones, grow by resorption and destruction of the jawbones. However, mechanisms underlying bone resorption by odontogenic tumors/cysts remain unclear. Odontogenic tumors/cysts comprise odontogenic epithelial cells and stromal fibroblasts, which originate from the developing tooth germ. It has been demonstrated that odontogenic epithelial cells of the developing tooth germ induce osteoclastogenesis to prevent the tooth germ from invading the developing bone to maintain its structure in developing bones. Thus, we hypothesized that odontogenic epithelial cells of odontogenic tumors/cysts induce osteoclast formation, which plays potential roles in tumor/cyst outgrowth into the jawbone. The purpose of this study was to examine osteoclastogenesis by cytokines, focusing on transforming growth factor-β (TGF-β), produced by odontogenic epithelial cells. We observed two pathways for receptor activator of NF-κB ligand (RANKL) induction by keratocystic odontogenic tumor fluid: the cyclooxygenase-2 (COX-2)/prostaglandin E2 (PGE2) pathway through interleukin-1α (IL-1α) signaling and non-COX-2/PGE2 pathway through TGF-β receptor signaling. TGF-β1 and IL-1α produced by odontogenic tumors/cysts induced osteoclastogenesis directly in the osteoclast precursor cells and indirectly via increased RANKL induction in the stroma.
Collapse
|
10
|
Scariot R, Uetanabaro LC, Araujo MRD, Zielak J, Giovanini AF, Costa DJD, Rebellato NLB, Gugisch RC. Correlation between radiographic area and immunolocation of MMP-2 and MMP-9 in unilocular radiographic lesions. Braz Dent J 2015; 25:466-71. [PMID: 25590190 DOI: 10.1590/0103-6440201300334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 12/08/2014] [Indexed: 11/22/2022] Open
Abstract
Unilocular bone cysts are the most common entities affecting the maxillofacial region. The mechanism of proliferation and expansion remains unclear. Metalloproteinases (MMPs) are associated to diverse pathological conditions. The aim of the present study was to correlate the radiographic aspect (area) and the presence of MMP-2 and MMP-9 in dentigerous cysts, radicular cysts and keratocystic odontogenic tumors. The radiographic area of each lesion was calculated using the mathematical formula of the ellipse area. All specimens were subjected to immunohistochemical analysis for these enzymes. The average radiographic area was 284.17 mm2, 235.81 mm2 and 381.81 mm2, respectively. Statistical analyses revealed no association between the immunoreactivity of MMPs and radiographic area of the lesions in all pathologies studied, except for MMP-2 and radicular cysts, for which smaller lesions had increased immunostaining for this enzyme. The results demonstrate that quantities of MMP-2 and MMP-9 are especially involved with dentigerous and radicular cysts in expansion, whereas these enzymes seem to be related to the biological behavior of keratocystic odontogenic tumors, indicating invasion and cell proliferation. Moreover, there is an inverse association between MMP-2 and MMP-9 in keratocystic odontogenic tumors (p=0.03; rs=-0.660), indicating activity in different regions.
Collapse
Affiliation(s)
- Rafaela Scariot
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
| | | | | | - Joao Zielak
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
| | | | - Delson João da Costa
- Graduate Program in Dentistry, UFPR - Federal University of Paraná, Curitiba, PR, Brazil
| | | | | |
Collapse
|
11
|
Park HS, Song IS, Seo BM, Lee JH, Kim MJ. The effectiveness of decompression for patients with dentigerous cysts, keratocystic odontogenic tumors, and unicystic ameloblastoma. J Korean Assoc Oral Maxillofac Surg 2014; 40:260-5. [PMID: 25551089 PMCID: PMC4279975 DOI: 10.5125/jkaoms.2014.40.6.260] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/03/2014] [Accepted: 11/07/2014] [Indexed: 12/05/2022] Open
Abstract
Objectives The aim of this study was to verify the clinical effectiveness of decompression in decreasing the size of a cyst. In addition to the different types of cysts, we tried to reveal what effect host factors, such as the initial size of the lesion and the age of the patient, have on the velocity of cyst shrinkage. Materials and Methods With the aid of a panoramic view, we measured the size of the cysts before and after decompression in 13 dentigerous cysts (DCs), 14 keratocystic odontogenic tumors (KTOCs), and 5 unicystic ameloblastoma (UA) cases. The velocity of shrinkage in the three cystic groups was calculated. Relationships between the age of the patient, the initial size of the cyst, and the shrinkage velocity were investigated. Results The three types of cysts showed no inter-type differences in their velocity of shrinkage. However, there was a statistically meaningful relationship between the initial size of the lesion and the absolute velocity of shrinkage in the DC group (P=0.02, R=0.65) and the KTOC group (P=0.02, R=0.56). There was also a significant relationship between the age of the patient and the absolute velocity of shrinkage in the KTOC group (P=0.04, R=0.45) and the UA group (P=0.04, R=0.46). Conclusion There was no difference in the decrease in size due to decompression among the different types of cysts. However, the age of the patient and the initial size of the lesion showed a significant relationship with the velocity of shrinkage.
Collapse
Affiliation(s)
- Hyun-Soo Park
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, Seoul National University Dental Hospital, Seoul, Korea
| | - In-Seok Song
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul, Korea
| | - Byoung-Moo Seo
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, Seoul National University Dental Hospital, Seoul, Korea
| | - Jong-Ho Lee
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, Seoul National University Dental Hospital, Seoul, Korea
| | - Myung-Jin Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, Seoul National University Dental Hospital, Seoul, Korea
| |
Collapse
|
12
|
Zhang X, Wang J, Ding X, Xing S, Zhang W, Wang L, Wu H, Wang L. Altered expression of podoplanin in keratocystic odontogenic tumours following decompression. Oncol Lett 2013; 7:627-630. [PMID: 24527067 PMCID: PMC3919824 DOI: 10.3892/ol.2013.1764] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 11/26/2013] [Indexed: 12/02/2022] Open
Abstract
Marsupialisation or decompression is frequently performed as a conservative therapy for keratocystic odontogenic tumours (KCOTs). Positive podoplanin (PDPN) expression in the epithelium of KCOT has been previously reported and may be associated with neoplastic invasion. In the present study, changes in PDPN expression were observed in the epithelium of KCOTs following decompression. In total, 16 pairs of paraffin-embedded tissue specimens obtained at the time of decompression and at two-stage curettage or enucleation were collected and immunohistochemically examined using an antibody against PDPN. The intensity of PDPN staining was evaluated with a semi-quantitative detection method and statistically analysed. The immunohistochemical reactivity of PDPN was consistently markedly positive in 93.8% of KCOT samples prior to decompression. The positive staining was immunolocalised to the cell membrane and cytoplasm of cells in the basal layer and extended into the suprabasal layer for two to three cell layers. At the time of curettage, 2 of the 16 (12.5%) cases were completely negative, 11 of the 16 (68.8%) cases were locally positive and 3 of the 16 (18.7%) cases showed a ‘linear staining’ pattern, as the PDPN-positive cells were restricted to within the single basal layer. The expression level of PDPN was significantly decreased (P<0.05) and a significant loss or reduction of PDPN expression was observed in KCOTs following decompression. Larger sample groups are required to further verify this result.
Collapse
Affiliation(s)
- Xiaomin Zhang
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jing Wang
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xu Ding
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Shuzhong Xing
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wei Zhang
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Lizhen Wang
- Division of Oral Pathology, The Shanghai Ninth People's Hospital, Shanghai 200011, P.R. China
| | - Heming Wu
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Lin Wang
- Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| |
Collapse
|
13
|
Wang J, Zhang X, Ding X, Xing S, Li H, Zhang W, Wang L, Wu H. Cyclooxygenase-2 expression in keratocystic odontogenic tumour decreased following decompression. Mol Clin Oncol 2013; 1:982-986. [PMID: 24649281 DOI: 10.3892/mco.2013.169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/03/2013] [Indexed: 11/06/2022] Open
Abstract
Marsupialisation or decompression is frequently performed as a conservative therapy for keratocystic odontogenic tumours (KCOTs). Positive cyclooxygenase-2 (COX-2) expression in the epithelium of KCOTs was recently reported and may be associated with neoplastic invasion and progression. The aim of the present study was to investigate the change in COX-2 expression in the KCOT epithelium following decompression. In this study, 16 pairs of KCOT biopsy specimens obtained during decompression or enucleation were collected and analysed. Formalin-fixed, paraffin-embedded blocks were sectioned and immunohistochemically investigated using anti-COX-2 antibody. The molecular expression was semi-quantitatively evaluated as follows: 0, negative; 1, weakly to moderately positive; and 2, strongly positive. In the samples obtained prior to decompression, the positive staining for COX-2 was immunolocalised to the cell membrane and the cytoplasm, it involved the full thickness of the epithelium and 15 of the 16 specimens (93.8%) exhibited mild to strong positivity. As regards the samples obtained following decompression, only 3 of the 16 specimens (18.8%) exhibited a mild positivity. The expression levels of COX-2 were significantly decreased following decompression (P<0.05). It may be concluded that loss or a significant reduction of COX-2 expression is associated with decompression in KCOTs. However, large-scale studies are required to verify these results and improve our knowledge of the possible involvement of COX-2 in the pathogenic mechanism underlying the development of KCOTs.
Collapse
Affiliation(s)
- Jing Wang
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| | - Xiaomin Zhang
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| | - Xu Ding
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| | - Shuzhong Xing
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| | - Huaiqi Li
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| | - Wei Zhang
- Division of Pathology, Jiangsu Stomatological Hospital, Nanjing, Jiangsu 210029
| | - Lizhen Wang
- Division of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai 200011, P.R. China
| | - Heming Wu
- Institute of Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029
| |
Collapse
|
14
|
Kubota Y, Imajo I, Itonaga R, Takenoshita Y. Effects of the patient's age and the size of the primary lesion on the speed of shrinkage after marsupialisation of keratocystic odontogenic tumours, dentigerous cysts, and radicular cysts. Br J Oral Maxillofac Surg 2013; 51:358-62. [DOI: 10.1016/j.bjoms.2012.07.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 07/25/2012] [Indexed: 10/27/2022]
|
15
|
Nadalin MR, Fregnani ER, Silva-Sousa YTC, da Cruz Perez DE. Presence of myofibroblasts and matrix metalloproteinase 2 in radicular cysts, dentigerous cysts, and keratocystic odontogenic tumors: a comparative immunohistochemical study. J Endod 2012; 38:1363-7. [PMID: 22980178 DOI: 10.1016/j.joen.2012.05.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 05/29/2012] [Accepted: 05/29/2012] [Indexed: 01/03/2023]
Abstract
INTRODUCTION The aim of this study was to analyze the presence of myofibroblasts and matrix metalloproteinase 2 (MMP-2) in radicular cysts (RCs), dentigerous cysts (DCs), and keratocystic odontogenic tumors (KOTs). METHODS For the study, 29 RCs, 19 DCs, and 15 KOTs were selected. Immunohistochemical reactions were performed by using anti-MMP-2 and anti-α-smooth muscle actin (SMA) antibodies. For the analysis, 10 high-power fields were observed in each case to determine the percentage of positive cells, which was classified as negative, weak, or strong. RESULTS The presence of myofibroblasts (α-SMA-positive cells) was most common in KOTs (46.67%), followed by DCs (36.84%) and RCs (31.04%); however, it was not statistically significant (P = .8). The stromal MMP-2 expression was positive in all lesions but 1 case of KOT. Most cases of RC and DC presented strong MMP-2 expression in the stroma, whereas half of the KOTs showed similar classification. The MMP-2 expression was commonly found in the epithelial lining of the lesions; it was strong in almost all KOTs. No correlation between epithelial and stromal MMP-2 and α-SMA expressions was observed. CONCLUSIONS Myofibroblasts and MMP-2 are frequent in RCs, DCs, and KOTs and eventually can contribute to bone resorption, favoring the progression and growth of these lesions.
Collapse
|
16
|
Patidar KA, Parwani RN, Wanjari SP, Patidar AP. Mast cells in human odontogenic cysts. Biotech Histochem 2012; 87:397-402. [PMID: 22574881 DOI: 10.3109/10520295.2012.674556] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mast cells are granule-containing cells in mucosal and connective tissues that are known to play a central role in allergic and inflammatory responses owing to pro-inflammatory mediators. Cysts in jaws are among the most common expansive, benign and destructive bone lesions; at some stage they are associated with chronic inflammation. Earlier studies have identified mast cells in odontogenic cysts (OC). We investigated the presence and distribution of mast cells and compared their number in different types of radicular cysts (RC), dentigerous cysts (DC) and odontogenic keratocysts (OKC). Ten cases each of RC, DC and OKC diagnosed clinically and histopathologically were selected and stained with 1% toluidine blue. The greatest number of mast cells/mm(2) was found in RC. The fewest mast cells/mm(2) were found in OKC. The subepithelial zones of all cysts contained more mast cells than the deeper zones.
Collapse
Affiliation(s)
- K A Patidar
- Department of Oral and Maxillofacial Pathology, behind queen's college, Gram Limbodi, Indore, India.
| | | | | | | |
Collapse
|
17
|
Komabayashi T, Jiang J, Zhu Q. Apical infection spreading to adjacent teeth: a case report. ACTA ACUST UNITED AC 2011; 111:e15-20. [DOI: 10.1016/j.tripleo.2011.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 12/14/2010] [Accepted: 01/06/2011] [Indexed: 10/18/2022]
|
18
|
Kolokythas A, Al-Ghamian H, Miloro M. Does a difference exist in inferior alveolar canal displacement caused by commonly encountered pathologic entities? An observational study. J Oral Maxillofac Surg 2011; 69:1944-51. [PMID: 21419544 DOI: 10.1016/j.joms.2010.12.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 12/28/2010] [Indexed: 12/01/2022]
Abstract
PURPOSE The aim of the present study was to investigate whether a difference exists in the location of the displaced inferior alveolar canal (IAC) and neurovascular bundle (toward the buccal or lingual cortex) among odontogenic tumors and vascular lesions. If some consistency exists in the manner in which the canal and bundle are displaced on radiographic examination, the nature of the mandibular lesion under examination could be anticipated. This information would assist the surgical team in treatment planning, diagnostic biopsy, and resection, especially in cases of intraosseous vascular pathologic findings. MATERIALS AND METHODS A retrospective review of the computed tomography images obtained for odontogenic tumors and vascular anomalies treated at the Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, from January 2000 to June 2010 was undertaken. The IAC and neurovascular bundle were traced from the lingula to the mental foramina, and its location within the mandible was recorded at 3 specific points. RESULTS In the odontogenic tumor group, we found that the canal with the neurovascular bundle was displaced either toward the buccal cortex of the mandible or the inferior border, but it was never identified lingually. In contrast, all the vascular anomalies had displaced the structures toward the lingual aspect of the mandible at all selected points. CONCLUSIONS To our knowledge, this is the first study to have examined the potential differences in the displacement of the inferior alveolar neurovascular bundle caused by the 2 commonly encountered pathologic entities in the maxillofacial skeleton: odontogenic tumors and vascular anomalies. We identified a striking difference in the manner of the IAC and its contents that was consistent among the tumors in the 2 groups. The location of the IAC in relationship to the pathologic entity under investigation could prove valuable in the differential diagnosis and assist with planning the biopsy. Additional investigation with a larger number of cases of these 2 groups of lesions involving the mandible is warranted to confirm our preliminary findings.
Collapse
Affiliation(s)
- Antonia Kolokythas
- Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago, Chicago, IL 60612-7210, USA.
| | | | | |
Collapse
|
19
|
Leonardi R, Matthews JB, Caltabiano R, Greco M, Lombardo C, Loreto C, Santarelli A, Lo Muzio L. MMP-13 expression in keratocyst odontogenic tumour associated with NBCCS and sporadic keratocysts. Oral Dis 2011; 16:795-800. [PMID: 20561220 DOI: 10.1111/j.1601-0825.2010.01690.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the matrix metalloproteinase (MMP)-13 expression in associated and non-nevoid basal cell carcinoma syndrome (NBCCS) Odontogenic Keratocysts (OCKs) in order to contribute to a better understanding of the differences in the growth pattern between them. MATERIALS AND METHODS Thirty-nine paraffin-embedded blocks of OCKs, 26 sporadic OCKs and 11 NBCCS-associated KCOTs were studied by immunohistochemistry to evaluate MMP-13 expression both in epithelial and stromal layers. A semi-quantitative scale was used to evaluate immunostaining. Obtained data were compared between the two groups, using Fischer's exact test and the chi-square test. RESULTS Only 13 of 26 sporadic OCKs showed a positive immunostaining, whilst 11 KCOTs resulted in positive labelling for MMP-13 expression. Moreover, syndromic cysts displayed a more intense and diffuse MMP-13 labelling of the stromal tissue. Instead, in non-syndromic forms, the staining pattern of MMP-13 in stromal tissue was completely absent. Fisher's exact test showed a statistically significant greater prevalence of KCOTs-immunolabelled cysts with respect to sporadic OCKs. CONCLUSIONS Results from this study point out that the biological behaviour of these cysts could be related not only to the epithelial layer but also to stromal tissue in that... MMP-13 overexpression in stromal tissue of NBCCS-associated KCOTs could clarify the higher aggressiveness of these cysts.
Collapse
Affiliation(s)
- R Leonardi
- Department of Medical and Surgical Science, II Dental Unit - University of Catania, Catania, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Yildirim G, Ataoglu H, Kalayci A, Ozkan BT, Kucuk K, Esen A. Conservative Treatment Protocol for Keratocystic Odontogenic Tumour: a Follow-up Study of 3 Cases. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2010; 1:e7. [PMID: 24421977 PMCID: PMC3886057 DOI: 10.5037/jomr.2010.1307] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Accepted: 06/12/2010] [Indexed: 12/05/2022]
Abstract
Background The keratocystic odontogenic tumour is classified
as a developmental cyst derived from the enamel organ or from the dental lamina.
The treatment of keratocystic odontogenic tumour of the jaw remains controversial.
The aim of this study was to report the outcome of our conservative treatment protocol
for keratocystic odontogenic tumour. Methods Three patients
with different complaints referred to Oral and Maxillofacial Surgery Clinic, Faculty
of Dentistry, Selçuk University. Initial biopsy was carried out in all patients
and keratocystic odontogenic tumours was diagnosed subsequent to histopathological
examination. The patients with keratocystic odontogenic tumours were treated by
enucleation followed by open packing. This conservative treatment protocol was selected
because of existing young aged patients. The average follow-up duration of the cases
was 2 years. Results Out of 3 cases, 2 lesions were present in mandible
and 1 lesion in maxilla. There was no evidence of recurrence during follow-up. All
the cases were monitored continuously with panoramic radiographs, computed tomography
and clinical evaluations. Conclusions This conservative treatment protocol for keratocystic
odontogenic tumours, based on enucleation followed by open packing would be a possible
choice with a view of offering low recurrence rate and low morbidity rate particularly
in young patients.
Collapse
Affiliation(s)
- Gülsün Yildirim
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| | - Hanife Ataoglu
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| | - Abdullah Kalayci
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| | - Birkan Taha Ozkan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| | - Korhan Kucuk
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| | - Alparslan Esen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Selçuk, Konya Turkey
| |
Collapse
|
21
|
Kumamoto H. Molecular alterations in the development and progression of odontogenic tumors. ACTA ACUST UNITED AC 2010. [DOI: 10.3353/omp.14.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
22
|
Mendes RA, Carvalho JF, Waal IVD. An overview on the expression of cyclooxygenase-2 in tumors of the head and neck. Oral Oncol 2009; 45:e124-8. [DOI: 10.1016/j.oraloncology.2009.03.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 03/27/2009] [Accepted: 03/27/2009] [Indexed: 01/10/2023]
|
23
|
Suyama Y, Kubota Y, Yamashiro T, Ninomiya T, Koji T, Shirasuna K. Expression of keratinocyte growth factor and its receptor in odontogenic keratocysts. J Oral Pathol Med 2009; 38:476-80. [DOI: 10.1111/j.1600-0714.2009.00760.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
24
|
Cavalcante RB, Pereira KMA, Nonaka CFW, Nogueira RLM, de Souza LB. Immunohistochemical expression of MMPs 1, 7, and 26 in syndrome and nonsyndrome odontogenic keratocysts. ACTA ACUST UNITED AC 2008; 106:99-105. [PMID: 18585626 DOI: 10.1016/j.tripleo.2007.12.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Revised: 12/06/2007] [Accepted: 12/11/2007] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The objective of this study was to analyze the expression of matrix metalloproteinases (MMPs) 1, 7, and 26 in odontogenic keratocysts (OKCs) associated with Gorlin syndrome (SOKCs) and nonsyndrome OKCs (NSOKCs). STUDY DESIGN Twenty-one SOKCs and 20 NSOKCs were evaluated for epithelial expression of MMP-1, MMP-7, and MMP-26 and for mesenchymal expression of MMP-1 by immunohistochemistry. RESULTS Strong epithelial positivity to MMP-1 was observed in 76% of SOKCs and in 15% of NSOKCs (P < .05). Strong mesenchymal immunoreactivity to MMP-1 was observed in 38% of SOKCs and in 20% of NSOKCs (P > .05). Epithelial immunoreactivity to MMP-7 was strongly positive in 67% of SOKCs and in 40% of NSOKCs (P > .05). For MMP-26, strong positivity was found in 62% of SOKCs, in contrast to 35% of NSOKCs (P > .05). CONCLUSION MMPs-1, -7 and -26 may play important roles in the biology of OKCs. Furthermore, the presence of these proteases at higher levels in SOKCs may help to explain increased OKC aggressiveness associated with nevoid basal cell carcinoma syndrome.
Collapse
|
25
|
Ali MAA. Expression of extracellular matrix metalloproteinase inducer in odontogenic cysts. ACTA ACUST UNITED AC 2008; 106:258-63. [DOI: 10.1016/j.tripleo.2008.01.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 09/27/2007] [Accepted: 01/18/2008] [Indexed: 12/26/2022]
|
26
|
Suyama Y, Kubota Y, Ninomiya T, Shirasuna K. Immunohistochemical analysis of interleukin-1α, its type I receptor and antagonist in keratocystic odontogenic tumors. J Oral Pathol Med 2008; 37:560-4. [DOI: 10.1111/j.1600-0714.2008.00667.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
27
|
da Silva TA, Batista AC, Mendonça EF, Leles CR, Fukada S, Cunha FQ. Comparative expression of RANK, RANKL, and OPG in keratocystic odontogenic tumors, ameloblastomas, and dentigerous cysts. ACTA ACUST UNITED AC 2008; 105:333-41. [DOI: 10.1016/j.tripleo.2007.06.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2007] [Revised: 04/30/2007] [Accepted: 06/05/2007] [Indexed: 10/22/2022]
|
28
|
Muglali M, Komerik N, Bulut E, Yarim GF, Celebi N, Sumer M. Cytokine and chemokine levels in radicular and residual cyst fluids. J Oral Pathol Med 2007; 37:185-9. [DOI: 10.1111/j.1600-0714.2007.00595.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
29
|
|
30
|
Ogata S, Kubota Y, Satoh S, Ito S, Takeuchi H, Ashizuka M, Shirasuna K. Ca2+ stimulates COX-2 expression through calcium-sensing receptor in fibroblasts. Biochem Biophys Res Commun 2006; 351:808-14. [PMID: 17097611 DOI: 10.1016/j.bbrc.2006.10.098] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2006] [Accepted: 10/12/2006] [Indexed: 11/20/2022]
Abstract
Fibroblasts isolated from jaw cysts expressed calcium-sensing receptor (CasR). In the fibroblasts elevated extracellular Ca(2+) ([Ca(2+)](o)) increased fluo-3 fluorescence intensity, and the production of inositol(1,4,5)trisphosphate and active protein kinase C. Phospholipase C inhibitor U-73122 attenuated the Ca(2+)-induced increase in fluo-3 fluorescence intensity. Elevated [Ca(2+)](o) enhanced the expression of cyclooxygenase-2 (COX-2) mRNA and protein, and the secretion of prostaglandin E(2) in the fibroblasts. CasR activator neomycin also increased the expression of COX-2 mRNA, and U-73122 attenuated the Ca(2+)-induced expression of COX-2 mRNA. Elevated [Ca(2+)](o)-induced phosphorylation of extracellular signal-regulated protein kinase-1/2 (ERK1/2), p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK), and U-73122 inhibited the Ca(2+)-induced phosphorylation. The inhibitors for each kinase, PD98059, SB203580, and SP600125, attenuated the Ca(2+)-induced expression of COX-2 mRNA. These results suggest that in jaw cyst fibroblasts elevated extracellular Ca(2+) may enhance COX-2 expression via the activation of ERK1/2, p38 MAPK, and JNK through CasR.
Collapse
Affiliation(s)
- Sachie Ogata
- Department of Oral and Maxillofacial Surgery, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | | | | | | | | | | | | |
Collapse
|
31
|
Costa Carvalho Silva G, Carvalho Silva E, Santiago Gomez R, Couto Vieira T. Odontogenic keratocyst in the maxillary sinus: Report of two cases. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.ooe.2006.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|