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Ma Z, Wang J, Li L, Wang S, Hu L, Wang H. LIM homeobox 8 reduced apoptosis and promoted periodontal tissue regeneration function of dental pulp stem cells. Tissue Cell 2024; 88:102387. [PMID: 38703583 DOI: 10.1016/j.tice.2024.102387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/27/2024] [Accepted: 04/16/2024] [Indexed: 05/06/2024]
Abstract
Stem cell-mediated tissue regeneration is a promising strategy for repairing tissue defects and functional reconstruction in periodontitis, a common disease that leads to the loss of alveolar bone and teeth. However, stem cell apoptosis, widely observed during tissue regeneration, impairs its efficiency. Therefore, the regulation of stem cell apoptosis is critical for improving regeneration efficiency. The LIM homeobox 8 gene LHX8, belongs to the LIM homeobox family, which was involved in tooth morphogenesis. Here, we found that LHX8 was significantly expressed in dental pulp. LHX8 knockdown significantly increased dental pulp mesenchymal stem cells (DPSCs) apoptosis, as confirmed by RT-PCR, western blotting, flow cytometry, and transmission electron microscopy. Additionally, LHX8 overexpression inhibited apoptosis and enhanced the osteo/odontogenic differentiation potential of hDPSCs in vitro. Furthermore, LHX8-overexpression could enhance the periodontal tissue regeneration efficiency of hDPSCs in mice with periodontitis. In conclusion, the present study indicates that LHX8 inhibits stem cell apoptosis and promotes functional tissue formation in stem cell-based tissue regeneration engineering, suggesting a new therapeutic target to increase the efficacy of periodontal tissue regeneration.
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Affiliation(s)
- Zhiyu Ma
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and School of Stomatology, Capital Medical University, Beijing 100050, China; Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medicine, Beijing, China
| | - Jinsong Wang
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medicine, Beijing, China
| | - Le Li
- Department of Stomatology, Tsinghua University Hospital, Beijing 100069, China
| | - Songlin Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and School of Stomatology, Capital Medical University, Beijing 100050, China; Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medicine, Beijing, China.
| | - Lei Hu
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and School of Stomatology, Capital Medical University, Beijing 100050, China.
| | - Haifeng Wang
- Department of Stomatology, Beijing Bo'ai Hospital, China Rehabilitation Research Center, School of Rehabilitation, Capital Medical University, Beijing 100068, China.
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Hii EPW, Ramanathan A, Pandarathodiyil AK, Wong GR, Sekhar EVS, Binti Talib R, Zaini ZM, Zain RB. Homeobox Genes in Odontogenic Lesions: A Scoping Review. Head Neck Pathol 2023; 17:218-232. [PMID: 36344906 PMCID: PMC10063701 DOI: 10.1007/s12105-022-01481-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Homeobox genes play crucial roles in tooth morphogenesis and development and thus mutations in homeobox genes cause developmental disorders such as odontogenic lesions. The aim of this scoping review is to identify and compile available data from the literatures on the topic of homeobox gene expression in odontogenic lesions. METHOD An electronic search to collate all the information on studies on homeobox gene expression in odontogenic lesions was carried out in four databases (PubMed, EBSCO host, Web of Science and Cochrane Library) with selected keywords. All papers which reported expression of homeobox genes in odontogenic lesions were considered. RESULTS A total of eleven (11) papers describing expression of homeobox genes in odontogenic lesions were identified. Methods of studies included next generation sequencing, microarray analysis, RT-PCR, Western blotting, in situ hybridization, and immunohistochemistry. The homeobox reported in odontogenic lesions includes LHX8 and DLX3 in odontoma; PITX2, MSX1, MSX2, DLX, DLX2, DLX3, DLX4, DLX5, DLX6, ISL1, OCT4 and HOX C in ameloblastoma; OCT4 in adenomatoid odontogenic tumour; PITX2 and MSX2 in primordial odontogenic tumour; PAX9 and BARX1 in odontogenic keratocyst; PITX2, ZEB1 and MEIS2 in ameloblastic carcinoma while there is absence of DLX2, DLX3 and MSX2 in clear cell odontogenic carcinoma. CONCLUSIONS This paper summarized and reviews the possible link between homeobox gene expression in odontogenic lesions. Based on the current available data, there are insufficient evidence to support any definite role of homeobox gene in odontogenic lesions.
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Affiliation(s)
- Erica Pey Wen Hii
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Anand Ramanathan
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | | | - Gou Rean Wong
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
| | - E V Soma Sekhar
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
| | | | - Zuraiza Mohamad Zaini
- Department of Oral & Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Rosnah Binti Zain
- Oral Cancer Research & Coordinating Centre, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
- Faculty of Dentistry, MAHSA University, Jenjarom, Selangor, Malaysia
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Soluk-Tekkesin M, Vered M. Ameloblastic Fibro-Odontoma: At the Crossroad Between "Developing Odontoma" and True Odontogenic Tumour. Head Neck Pathol 2021; 15:1202-1211. [PMID: 33991318 PMCID: PMC8633217 DOI: 10.1007/s12105-021-01332-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/05/2021] [Indexed: 11/25/2022]
Abstract
Ameloblastic fibro-odontoma (AFO) is a controversial, rare benign mixed odontogenic tumour that was re-defined as "developing odontoma" in the 2017 WHO classification arguing that once dental hard tissues form, it is programmed to transform into odontoma. However, AFO still remains unclear in terms of its nature. We aimed to analyze a large series of AFOs and compare it to a large series of odontomas (ODs) in an attempt to set cut-off diagnostic parameters between these entities and discuss latest updates on AFO histopathologic, clinical and molecular features. A total of 23 well-documented AFOs were analyzed versus 310 ODs focusing on the age of the patients and size of the lesions. For AFO, mean age was 9.4 ± 3.9 years (range 3-16 years) and mean size (greatest diameter) was 2.9 ± 1.5 cm (range 0.8-5.5 cm). For OD-mean age was 26.5 ± 15.6 years (range 3-81 years), mean size 1.9 ± 0.9 cm (range 1-5 cm). Receiver operating curve (ROC) showed that a cut-off age of 13.5 years and below [area under the curve (AUC) 0.902, 95%CI 0.859-0.945; p < 001; sensitivity 80%, specificity 87%] and a cut-off size of 2.1 cm and above are likely to be associated with AFO (AUC 0.7, 95%CI 0.574-0.827; p = 0.001; sensitivity 57%, specificity 77%). Thus, the combination of age and lesion size may be used to distinguish between lesions of a true neoplastic nature (i.e., AFO) and hamartomatous formation (i.e., OD). Further molecular and genetic specifications are needed to provide a better understanding on the pathogenesis of AFO in support of our suggestion and aid in an accurate classification of AFO.
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Affiliation(s)
- Merva Soluk-Tekkesin
- Department of Tumour Pathology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Marilena Vered
- Department of Oral Pathology, Oral Medicine and Maxillofacial Imaging, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel ,Institute of Pathology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
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de França GM, Pinheiro JC, de Melo Fernandes Almeida DR, da Silva GG, de Lima KC, de Andrade Santos PP, Galvão HC. Analysis of Protein Immunoexpression and Its Interrelationship in the Pathogenesis of Odontomas and Ameloblastic Fibro-Odontomas: A Systematic Review. Head Neck Pathol 2021; 15:955-966. [PMID: 33394370 PMCID: PMC8384987 DOI: 10.1007/s12105-020-01260-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/21/2020] [Indexed: 10/22/2022]
Abstract
Odontomas and ameloblastic fibro-odontomas (AFOs) are the result of a developmental anomaly of odontogenic tissues. A literature review of proteins immunoexpressed in odontomas and AFOs was conducted in order to determine which proteins are involved in the pathogenesis of these lesions. AFO was changed to early odontoma in the 2017 WHO classification and will also be discussed in this article. A literature search was performed in the following electronic databases: PubMed/MEDLINE, Web of Science, Scopus, EMBASE, Lilacs, Cochrane Collaboration Library, and Science Direct. The research question was developed according to the population, intervention, comparison, and outcome (PICO) framework: Which proteins are related to the differentiation of odontomas and what is their interrelationship with AFOs? Thirty articles met all inclusion criteria and were selected for this systematic review, totaling 355 cases of odontomas and 43 cases of AFO. Similar immunoexpression was observed in odontomas and AFOs. Immunoexpression of proteins involved in cell differentiation was higher in compound odontomas than in complex odontomas. Proteins involved in histodifferentiation and enamel formation were more frequent in odontomas. The immunoexpression of enamel matrix proteins differs between odontomas and tooth germs, with their persistence being related to the development of odontomas. Compound odontomas exhibit the highest immunoexpression of proteins involved in cellular histodifferentiation and the Wnt/beta-catenin pathway is involved in tumor formation.
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Affiliation(s)
- Glória Maria de França
- grid.411233.60000 0000 9687 399XPostgraduate Program in Dental Science, Department of Dentistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 1787, Lagoa Nova, Natal, RN CEP 59056-000 Brazil
| | - Juliana Campos Pinheiro
- grid.411233.60000 0000 9687 399XPostgraduate Program in Dental Science, Department of Dentistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 1787, Lagoa Nova, Natal, RN CEP 59056-000 Brazil
| | - Dennys Ramon de Melo Fernandes Almeida
- grid.411233.60000 0000 9687 399XPostgraduate Program in Dental Science, Department of Dentistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 1787, Lagoa Nova, Natal, RN CEP 59056-000 Brazil
| | - Gabriel Gomes da Silva
- grid.411233.60000 0000 9687 399XDepartment of Dentistry, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Kênio Costa de Lima
- grid.411233.60000 0000 9687 399XPostgraduate Program in Public Health, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Pedro Paulo de Andrade Santos
- grid.411233.60000 0000 9687 399XPostgraduate Program in Dental Science, Department of Dentistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 1787, Lagoa Nova, Natal, RN CEP 59056-000 Brazil
| | - Hébel Cavalcanti Galvão
- grid.411233.60000 0000 9687 399XPostgraduate Program in Dental Science, Department of Dentistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 1787, Lagoa Nova, Natal, RN CEP 59056-000 Brazil
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Uzawa K, Kasamatsu A, Saito T, Takahara T, Minakawa Y, Koike K, Yamatoji M, Nakashima D, Higo M, Sakamoto Y, Shiiba M, Tanzawa H. Long-term culture of human odontoma-derived cells with a Rho kinase inhibitor. Exp Cell Res 2016; 347:232-240. [PMID: 27514999 DOI: 10.1016/j.yexcr.2016.08.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/27/2016] [Accepted: 08/07/2016] [Indexed: 10/21/2022]
Abstract
Because of cellular senescence/apoptosis, no effective culture systems are available to maintain replication of cells from odontogenic tumors especially for odontoma, and, thus, the ability to isolate human odontoma-derived cells (hODCs) for functional studies is needed. The current study was undertaken to develop an approach to isolate hODCs and fully characterize the cells in vitro. The hODCs were cultured successfully with a Rho-associated protein kinase inhibitor (Y-27632) for an extended period with stabilized lengths of the telomeres to sustain a similar phenotype/property as the primary tumoral cells. While the hODCs showed stable long-term expansion with expression of major dental epithelial markers including dentin sialophosphoprotein (DSPP) even in the three-dimensional microenvironment, they lack the specific markers for the characteristics of stem cells. Moreover, cells from dental pulp showed significant up-regulation of DSPP when co-cultured with the hODCs, while control fibroblasts with the hODCs did not. Taken together, we propose that the hODCs can be isolated and expanded over the long term with Y-27632 to investigate not only the development of the hODCs but also other types of benign human tumors.
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Affiliation(s)
- Katsuhiro Uzawa
- Department of Oral Science, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan; Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan.
| | - Atsushi Kasamatsu
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Tomoaki Saito
- Department of Oral Science, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan
| | - Toshikazu Takahara
- Department of Oral Science, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan
| | - Yasuyuki Minakawa
- Department of Oral Science, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan
| | - Kazuyuki Koike
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Masanobu Yamatoji
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Dai Nakashima
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Morihiro Higo
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Yosuke Sakamoto
- Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
| | - Masashi Shiiba
- Department of Medical Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan
| | - Hideki Tanzawa
- Department of Oral Science, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan; Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8677, Japan
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Zhou C, Yang G, Chen M, He L, Xiang L, Ricupero C, Mao JJ, Ling J. Lhx6 and Lhx8: cell fate regulators and beyond. FASEB J 2015; 29:4083-91. [PMID: 26148970 PMCID: PMC4566936 DOI: 10.1096/fj.14-267500] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 06/22/2015] [Indexed: 12/11/2022]
Abstract
As transcription factors of the lines (LIN)-11/Islet (Isl)-1/mitosis entry checkpoint (MEC)-3 (LIM)-homeobox subfamily, LIM homeobox (Lhx)6 and -8 are remarkably conserved and involved in the morphogenesis of multiple organ systems. Lhx6 and -8 play overlapping and distinctive roles, but in general act as cell fate mediators and in turn are regulated by several transcriptional factors, such as sonic hedgehog, fibroblast growth factors, and wingless-int (Wnt)/β-catenin. In this review, we first summarize Lhx6 and -8 distributions in development and then explore how Lhx6 and -8 act as transcription factors and coregulators of cell lineage specification. Known Lhx6 and -8 functions and targets are outlined in neurogenesis, craniofacial development, and germ cell differentiation. The underlying mechanisms of Lhx6 and -8 in regulating cell fate remain elusive. Whether Lhx6 and -8 affect functions in tissues and organs other than neural, craniofacial, oocytes, and germ cells is largely unexplored. Taken together, Lhx6 and -8 are important regulators of cell lineage specification and may act as one of the pivotal mediators of stem cell fate. Undoubtedly, future investigations of Lhx6 and -8 biology will continue to yield fascinating insights into tissue development and homeostasis, in addition to their putative roles in tissue regeneration and ageing.
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Affiliation(s)
- Chen Zhou
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Guodong Yang
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Mo Chen
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Ling He
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Lusai Xiang
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Christopher Ricupero
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jeremy J Mao
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Junqi Ling
- *Center for Craniofacial Regeneration, Columbia University Medical Center, New York, New York, USA; Guanghua School of Stomatology, Hospital of Stomatology, and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
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A discussion of some advancements and some persistent difficulties in the recognition and understanding of the histopathologic and molecular features of selected odontogenic tumors and tumor-like malformations. Adv Anat Pathol 2015; 22:213-6. [PMID: 25844679 DOI: 10.1097/pap.0000000000000063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Overgrowths of epithelial, ectomesenchymal, and/or mesenchymal elements of the tooth-forming apparatus are quite variable with respect to their histopathologic characteristics and biological behaviors. Investigations of a variety of odontogenic lesions have led to an enhanced comprehension of many salient diagnostic features. This discussion provides an update with respect to the understanding of odontogenic tumors and tumor-like malformations and attempts to assist pathologists in the recognition and classification of these lesions.
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Abstract
The aim of the present work is to analyze all scientific evidence to verify whether similarities supporting a unified explanation for odontomas and supernumerary teeth exist. A literature search was first conducted for epidemiologic studies indexed by PubMed, to verify their worldwide incidence. The analysis of the literature data shows some interesting similarities between odontomas and supernumerary teeth concerning their topographic distribution and pathologic manifestations. There is also some indication of common genetic and immuno-histochemical factors. Although from a nosological point of view, odontomas and supernumeraries are classified as distinct entities, they seem to be the expression of the same pathologic process, either malformative or hamartomatous.
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Affiliation(s)
- Roberto Pippi
- “Sapienza” University of Rome - Department of Odontostomatological and Maxillo Facial Sciences - Via Caserta 6, 00161 Rome - Italy
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Cabay RJ. An overview of molecular and genetic alterations in selected benign odontogenic disorders. Arch Pathol Lab Med 2014; 138:754-8. [PMID: 24878015 DOI: 10.5858/arpa.2013-0057-sa] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Some dental abnormalities have environmental causes. Other odontogenic alterations are idiopathic and may have hereditary etiologies. Investigations of these conditions are ongoing. OBJECTIVE To provide a discussion of developmental odontogenic abnormalities and benign odontogenic overgrowths and neoplasms for which genetic alterations have been well demonstrated and well documented. DATA SOURCES Relevant peer-reviewed literature. CONCLUSIONS The understanding of benign odontogenic lesions at a molecular level is rather well developed for some lesions and at the initial stages for many others. Further characterization of the molecular underpinnings of these and other odontogenic lesions would result in an enhanced comprehension of odontogenesis and the pathogenesis of a variety of odontogenic aberrations. These advancements may lead to better prevention and treatment paradigms and improved patient outcomes.
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Affiliation(s)
- Robert J Cabay
- From the Department of Pathology, College of Medicine, and the Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, University of Illinois Hospital & Health Sciences System, Chicago, Illinois
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Sternberg H, Murai JT, Erickson IE, Funk WD, Das S, Wang Q, Snyder E, Chapman KB, Vangsness CT, West MD. A human embryonic stem cell-derived clonal progenitor cell line with chondrogenic potential and markers of craniofacial mesenchyme. Regen Med 2012; 7:481-501. [PMID: 22519755 DOI: 10.2217/rme.12.29] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIMS We screened 100 diverse human embryonic stem-derived progenitor cell lines to identify novel lines with chondrogenic potential. MATERIALS & METHODS The 4D20.8 cell line was compared with mesenchymal stem cells and dental pulp stem cells by assessing osteochondral markers using immunohistochemical methods, gene expression microarrays, quantitative real-time PCR and in vivo repair of rat articular condyles. RESULTS 4D20.8 expressed the site-specific gene markers LHX8 and BARX1 and robustly upregulated chondrocyte markers upon differentiation. Differentiated 4D20.8 cells expressed relatively low levels of COL10A1 and lacked IHH and CD74 expression. Transplantation of 4D20.8 cells into experimentally induced defects in the femoral condyle of athymic rats resulted in cartilage and bone differentiation approximating that of the original tissue architecture. Relatively high COL2A1 and minimal COL10A1 expression occurred during differentiation in HyStem-C hydrogel with TGF-β3 and GDF-5. CONCLUSION Human embryonic stem cell-derived embryonic progenitor cell lines may provide a novel means of generating purified site-specific osteochondral progenitor cell lines that are useful in research and therapy.
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