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Pitak-Arnnop P, Subbalekha K, Sirintawat N, Meningaud JP, Tangmanee C, Auychai P, Neff A. A retrospective cohort study on predictors associated with skull base invasion of maxillary ameloblastomas. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e439-e447. [PMID: 35318133 DOI: 10.1016/j.jormas.2022.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/10/2022] [Accepted: 03/16/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE To identify factors associated with skull base involvement (SBI) of maxillary ameloblastomas (MA). METHODS This retrospective cohort study was composed of MA patients treated during a 7-year period. Demographic, radiographic, and nine immunohistopathologic predictor variables were included. The outcome variable was presence of SBI (yes/no). Descriptive, bi- and multivariate statistics were computed, and P ≤ .05 in multivariate analyses was considered statistically significant. RESULTS The sample comprised 23 subjects (34.8% females; 21.7% with SBI) with a mean age of 50.3 ± 18.2 years. Candidate predictors of an SBI in MAs were 1) male gender, 2) a low Karnofsky Performance Status score (KPS), 3) multilocular radiolucency, 4) ill-defined margins, 5) cortical perforation, 6) inclusion of an unerupted tooth, 7) moderate to strong reactivity to p53, Ki-67, CD10, astrocyte elevated gene-1 (AEG-1) protein, carbonic anhydrase IX (CA IX), calretinin (calbindin2; CALB2), and BRAF-V600E, and 8) negative to low immunopositivity to α-smooth muscle actin (α-SMA) and syndecan-1 (CD138). However, multivariate analyses confirmed the significant associations of SBI with negative/low syndecan-1 reactivity (P = .003; adjusted odds ratio [ORadj.], 4.04; 95% confidence interval [95% CI], -.89 to -.48; Pearson's Correlation Coefficient [r] = -.74) and with KPS (P = .003; ORadj., 4.04; 95% CI, -.78 to -.17; r = -.54) only. CONCLUSIONS Our findings suggest an aggressive approach to MAs with negative to low syndecan-1 immunopositivity and/or in multi-morbid patients (who may have difficulty in access to health care). Otherwise, health care inequalities due to low KPS scores should be minimized or eliminated.
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Affiliation(s)
- Poramate Pitak-Arnnop
- Department of Oral and Maxillofacial Surgery, University Hospital of Giessen and Marburg, UKGM GmbH, Campus Marburg, Faculty of Medicine, Philipps-University of Marburg, Marburg, Germany.
| | - Keskanya Subbalekha
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Nattapong Sirintawat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Jean-Paul Meningaud
- Department of Plastic, Reconstructive, Esthetic and Maxillofacial Surgery, Henri Mondor University Hospital, AP-HP, Faculty of Medicine, University Paris-Est Créteil Val de Marne (Paris XII), Créteil, France
| | - Chatpong Tangmanee
- Department of Statistics, Chulalongkorn Business School, Bangkok, Thailand
| | - Prim Auychai
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Andreas Neff
- Department of Oral and Maxillofacial Surgery, University Hospital of Giessen and Marburg, UKGM GmbH, Campus Marburg, Faculty of Medicine, Philipps-University of Marburg, Marburg, Germany
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2
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Varshney A, Aggarwal S, Gill SK, Aggarwal A, Jaiswal Y, Sharma J. Comparison of calretinin expression in dentigerous cysts and ameloblastoma: An immunohistochemical study. Natl J Maxillofac Surg 2020; 11:224-230. [PMID: 33897185 PMCID: PMC8051659 DOI: 10.4103/njms.njms_71_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 01/17/2020] [Accepted: 04/28/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Calretinin is a calcium-binding protein of 29-kilodalton (kDa), which is widely expressed in normal human tissues and tumorigenic tissues. Its expression in the odontogenic epithelium during odontogenesis and in neoplastic odontogenic tissues has been demonstrated. Unicystic ameloblastoma poses a diagnostic challenge, as its histologic presentation can be sometimes mistaken for cystic odontogenic lesions. In the present study, an attempt is made to overcome the confusion encountered in the diagnosis of dentigerous cyst and unicystic ameloblastoma, using the expression of calretinin in both lesions and to compare this expression with conventional ameloblastoma to accurately diagnose and differentiate these lesions. Materials and Methods: A total of eighty cases, in which twenty cases each of ameloblastoma, unicystic ameloblastoma, dentigerous cyst, and odontogenic keratocyst (OKC) were included in the study. Slides were made from the archival blocks of each case and were stained immunohistochemically with calretinin. Results: Correlation between calretinin staining and histopathological diagnosis was done, and it was found that all twenty cases of ameloblastoma showed positivity for calretinin, whereas 17 of twenty cases of unicystic ameloblastoma showed positivity for calretinin staining. All the cases of OKC and dentigerous cyst were negative for calretinin. Conclusion: Calretinin may serve as an important diagnostic adjunct in the differential diagnosis of ameloblastoma and cystic odontogenic lesions.
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Affiliation(s)
- Anchal Varshney
- Department of Oral Pathology and Microbiology, Manav Rachna Dental College, Faridabad, Haryana, India
| | - Shivani Aggarwal
- Department of Oral Pathology and Microbiology, Manav Rachna Dental College, Faridabad, Haryana, India
| | - Sharanjeet Kaur Gill
- Department of Oral Pathology and Microbiology, Manav Rachna Dental College, Faridabad, Haryana, India
| | - Ashim Aggarwal
- Department of Oral and Maxillofacial Surgery, Manav Rachna Dental College, Faridabad, Haryana, India
| | - Yashmi Jaiswal
- Senior Consultant, Ahead Dental Clinic, New Delhi, India
| | - Jaishree Sharma
- Department of Oral Pathology and Microbiology, Manav Rachna Dental College, Faridabad, Haryana, India
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3
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Rudraraju A, Venigalla A, Babburi S, Soujanya P, Subramanyam RV, Lakshmi KR. Calretinin expression in odontogenic cysts and odontogenic tumors and the possible role of calretinin in pathogenesis of ameloblastoma. J Oral Maxillofac Pathol 2019; 23:349-355. [PMID: 31942113 PMCID: PMC6948027 DOI: 10.4103/jomfp.jomfp_54_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction: Histopathological diagnosis of odontogenic cysts and tumors is a task mostly accomplished with hematoxylin and eosin staining. However, the use of additional diagnostic modalities such as immunohistochemistry may be necessary in histologically similar lesions. The reports of studies which have used calretinin as an immunohistochemical marker for ameloblastoma have been conflicting. Aim: The aim of the study was to evaluate the use of calretinin as a specific diagnostic marker for ameloblastoma and observe its expression in odontogenic cysts and other odontogenic tumors. Materials and Methods: Formalin-fixed, paraffin-embedded sections were taken from the archives which included 15 cases each of dentigerous cyst, radicular cyst, odontogenic keratocyst and ameloblastoma five cases of adenomatoid odontogenic tumor and three cases of ameloblastic carcinoma. Immunohistochemistry was done with calretinin antibody. Results: All ameloblastomas were positive for calretinin, whereas no other tumor or cyst showed positivity. Differences in proportion of calretinin expression were statistically significant with P = 0.000. Conclusion: Calretinin can be considered as a specific marker for ameloblastomas.
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Affiliation(s)
- Amrutha Rudraraju
- Department of Oral and Maxillofacial Pathology, Navodaya Dental College and Hospital, Raichur, Karnataka, India
| | - Aparna Venigalla
- Department of Oral and Maxillofacial Pathology, Drs. Sudha and Nageswara Rao Siddhartha Institute of Dental Sciences, Vijayawada, Andhra Pradesh, India
| | - Suresh Babburi
- Department of Oral and Maxillofacial Pathology, Drs. Sudha and Nageswara Rao Siddhartha Institute of Dental Sciences, Vijayawada, Andhra Pradesh, India
| | - Pinnisetti Soujanya
- Department of Oral and Maxillofacial Pathology, Government Dental College, Vijayawada, Andhra Pradesh, India
| | - R V Subramanyam
- OMFS and Diagnostic Sciences, College of Dentistry, King Faisal University, Al-Ahasa, Saudi Arabia
| | - K Roja Lakshmi
- Department of Oral and Maxillofacial Pathology, GSL Dental College, Rajahmundry, Andhra Pradesh, India
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4
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Thaiwong T, Sledge DG, Collins-Webb A, Kiupel M. Immunohistochemical Characterization of Canine Oral Papillary Squamous Cell Carcinoma. Vet Pathol 2017; 55:224-232. [DOI: 10.1177/0300985817741732] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recently, histologic subtypes of oral squamous cell carcinoma (SCC) corresponding to the human classification scheme have been proposed for dogs. A papillary squamous cell carcinoma subtype is characterized by dominant exophytic architectural growth with limited invasion, a lower metastatic rate, and better overall survival compared with conventional SCC. Whereas most canine oral conventional SCCs are easily diagnosed by histologic examination, the diagnosis of canine oral papillary squamous cell carcinoma (COPSCC) can be challenging since the exophytic portion lacks histologic features of malignancy and appears similar to oral nonviral papillomas. In contrast, the invasive portion of COPSCC has morphologic similarities to conventional SCC and canine acanthomatous ameloblastoma. The goals of this study were to immunophenotype these 3 entities and to potentially identify discriminating markers. A panel of 17 immunohistochemical markers was investigated in tissue microarrays that included 25 COPSCCs, 10 conventional SCCs, and 10 canine acanthomatous ameloblastomas. Additionally, COPSCCs were screened for papillomavirus as a potential cause using immunohistochemistry and in situ hybridization. COPSCC had immunophenotypical similarities with conventional SCC and acanthomatous ameloblastoma, but the combined differences in immunolabeling for AE1/AE3, 34βE12, p63, and calretinin discriminated between the entities. Papillomavirus was not detected in any COPSCC, making a viral pathogenesis unlikely. A better understanding of the immunophenotype of COPSCC will aid in a more accurate diagnosis and potentially improve therapeutic approaches.
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Affiliation(s)
- Tuddow Thaiwong
- Veterinary Diagnostic Laboratory, Michigan State University, Lansing, MI, USA
| | - Dodd G. Sledge
- Veterinary Diagnostic Laboratory, Michigan State University, Lansing, MI, USA
| | | | - Matti Kiupel
- Veterinary Diagnostic Laboratory, Michigan State University, Lansing, MI, USA
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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Etemad-Moghadam S, Alaeddini M. A comparative study of syndecan-1 expression in different odontogenic tumors. J Oral Biol Craniofac Res 2016; 7:23-26. [PMID: 28316917 DOI: 10.1016/j.jobcr.2016.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/03/2016] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Expression of various cellular/molecular factors change during the course of tumor formation from odontogenic tissues of the tooth germ. Evaluation of these factors can help provide a better perception of the tumorigenesis and biologic behavior of odontogenic tumors (OTs). Syndecan-1 is a heparan sulfate proteoglycan which has not been extensively investigated in these lesions. The objective of the present study was to assess the immunohistochemical expression of CD138 in adenomatoid odontogenic tumor (AOT), ameloblastic fibroma (AF) and odontogenic myxoma (OM) and to compare it with ameloblastoma and keratocystic odontogenic tumor (KCOT). METHOD A total of 58 OTs consisting of 7 AOTs, 5 OMs, 7 AFs, 29 KCOTs and 10 ameloblastomas were immunohistochemically stained with monoclonal antibody against syndecan-1 and the percentage and intensity of the immunostained cells was assessed. Kruskal-Wallis test followed by Bonferroni analysis was used for comparisons (P < 0.05). RESULTS Syndecan-1 was expressed in all samples except for OMs. Both percentage and intensity of syndecan-1 expression were statistically different among the studied OTs (P < 0.001). Pairwise comparisons showed significant difference only between OMs and each of the other tumors. CONCLUSION Syndecan-1 may be involved in the pathogenesis of AOT, AF, KCOT and ameloblastoma. However, considering the different behaviors of these tumors along with their similar expression of syndecan-1, it seems that its effect on clinical aggressiveness is limited. The significance of negative immunoexpression of this protein in OM requires further investigation.
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Affiliation(s)
- Shahroo Etemad-Moghadam
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Alaeddini
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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6
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Mendes RB, Dias RB, Figueiredo AL, Gurgel CA, Santana Filho M, Melo LA, Trierveiler M, Cury PR, Leonardi R, Dos Santos JN. Glypican-3 distinguishes aggressive from non-aggressive odontogenic tumors: a preliminary study. J Oral Pathol Med 2016; 46:297-300. [PMID: 27647326 DOI: 10.1111/jop.12501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2016] [Indexed: 01/12/2023]
Abstract
BACKGROUND Glypican-3 is a cell surface proteoglycan that is found in embrionary tissues, and there are no studies investigating this protein in odontogenic tumor. Thus, the aim of this study was to investigate glypican-3 in a series of aggressive and non-aggressive odontogenic tumors. METHODS Fifty-nine cases of tumors were divided into aggressive odontogenic tumors (20 solid ameloblastomas, four unicystic ameloblastoma, 28 KOTs including five associated with Gorlin-Goltz syndrome) and non-aggressive odontogenic tumors (five adenomatoid odontogenic tumors and two calcifying cystic odontogenic tumors) and analyzed for glypican-3 using immunohistochemistry. RESULTS Glypican-3 was observed in seven solid ameloblastoma and eighteen keratocystic odontogenic tumors including three of the five syndromic cases, but there was no significant difference between syndromic and sporadic cases (P > 0.05; Fisher's exact Test). All cases of unicystic ameloblastoma (n = 4), adenomatoid odontogenic tumor (n = 5), and calcifying cystic odontogenic tumor (n = 2) were negative. CONCLUSIONS This provided insights into the presence of glypican-3 in odontogenic tumors. This protein distinguished aggressive from non-aggressive odontogenic tumors.
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Affiliation(s)
- Ramon Barreto Mendes
- Postgraduate Program in Human Pathology, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Rosane Borges Dias
- Postgraduate Program in Human Pathology, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Andreia Leal Figueiredo
- Department of Public Health, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Clarissa Araújo Gurgel
- Postgraduate Program in Human Pathology, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | - Manoel Santana Filho
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Leonardo Araújo Melo
- Laboratory of Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Marília Trierveiler
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Patrícia Ramos Cury
- Department of Periodontics, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Rosalia Leonardi
- Department of Medical and Surgical Sciences, University of Catania, Catania, Italy
| | - Jean Nunes Dos Santos
- Postgraduate Program in Human Pathology, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil.,Laboratory of Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
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7
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Nagi R, Sahu S, Rakesh N. Molecular and genetic aspects in the etiopathogenesis of ameloblastoma: An update. J Oral Maxillofac Pathol 2016; 20:497-504. [PMID: 27721617 PMCID: PMC5051300 DOI: 10.4103/0973-029x.190954] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 08/04/2016] [Indexed: 02/02/2023] Open
Abstract
Ameloblastoma is the second most common benign epithelial odontogenic tumor and though it is of a benign nature, it is locally invasive, has a high recurrence rate and could potentially become malignant. Many theories have been proposed to explain the pathogenesis of ameloblastoma. Proper understanding of the pathogenic mechanism involved in ameloblastoma and its proliferation aids in constituting proper treatment of choice at an early stage, preventing morbidity associated with extensive therapy. An attempt has been made to discuss the current concepts related to molecular and genetic changes that occur in ameloblastoma as these could affect treatment plan and prognosis.
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Affiliation(s)
- Ravleen Nagi
- Department of Oral Medicine and Radiology, New Horizon Dental College and Research Institute, Bilaspur, Chhattisgarh, India
| | - Shashikant Sahu
- Department of Plastic Surgery, Burn and Trauma Centre, Bilaspur, Chhattisgarh, India
| | - N Rakesh
- Department of Oral Medicine and Radiology, Faculty of Dental Sciences, MS Ramaiah University of Applied Sciences, MSRIT Post, Mathikere, Bangalore, Karnataka, India
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8
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Value of calretinin immunostaining in diagnostic pathology: a review and update. Appl Immunohistochem Mol Morphol 2015; 22:401-15. [PMID: 24185118 DOI: 10.1097/pai.0b013e31829b6fbd] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Calretinin is a member of the EF-hand family of calcium-binding proteins. Because its expression is highly restricted to mesotheliomas, calretinin is, at present, the most commonly used positive mesothelioma marker that is most often recommended to be included in the various immunohistochemical panels used to assist in the differential diagnosis of these tumors. Calretinin expression has also been reported to be commonly expressed in a wide variety of other neoplasms, including sex cord-stromal tumors, adrenal cortical neoplasms, olfactory neuroblastomas, Schwann cell tumors, cardiac myxomas, and ameloblastomas. This article reviews the information that is currently available on calretinin expression in tumors and on its application as an immunohistochemical marker in diagnostic pathology.
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9
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Hunter KD, Speight PM. The diagnostic usefulness of immunohistochemistry for odontogenic lesions. Head Neck Pathol 2014; 8:392-9. [PMID: 25409846 PMCID: PMC4245415 DOI: 10.1007/s12105-014-0582-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 10/30/2014] [Indexed: 10/24/2022]
Abstract
The diagnosis of odontogenic tumors can be challenging, largely due to their rarity and consequent difficulties in gaining experience in their assessment. In most cases, careful attention to morphology, in conjunction with clinical and radiological features will allow a diagnosis to be made. However, in some cases, immunohistochemical analysis of the tumor may be useful. In this review we will outline the immunohistochemical expression profile of normal developing odontogenic tissues and a range of odontogenic tumors. In many cases the immunohistochemical markers are neither specific nor sensitive enough to be of help in diagnosis, but in some cases such analysis may prove very useful. Thus we have outlined a limited number of circumstances where immunohistochemistry may be of use to the practicing diagnostic pathologist.
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Affiliation(s)
- Keith D. Hunter
- grid.11835.3e0000000419369262Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield, S10 2TA UK
| | - Paul M. Speight
- grid.11835.3e0000000419369262Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield, S10 2TA UK
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10
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Immunohistochemical Expression of Calretinin in Ameloblastoma, Adenomatoid Odontogenic Tumor, and Keratocystic Odontogenic Tumor. Appl Immunohistochem Mol Morphol 2014; 22:762-7. [DOI: 10.1097/pai.0000000000000005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Anandani C, Metgud R, Singh K. Calretinin as a diagnostic adjunct for ameloblastoma. PATHOLOGY RESEARCH INTERNATIONAL 2014; 2014:308240. [PMID: 24839578 PMCID: PMC4009281 DOI: 10.1155/2014/308240] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 03/27/2014] [Accepted: 03/28/2014] [Indexed: 12/04/2022]
Abstract
Background. Calretinin is a 29 kDa calcium-binding protein of the EF-hand family which is expressed in a variety of normal and tumorigenic tissues. Its expression in odontogenic epithelium during odontogenesis and in neoplastic odontogenic tissues has been demonstrated. Unicystic ameloblastoma poses a diagnostic challenge, as its histologic presentation can be sometimes mistaken for keratocystic odontogenic tumor (KCOT). This study was performed to assess the usefulness of calretinin as a confirmatory marker for ameloblastic tissue. Methodology. Total of 40 cases: 16 unicystic ameloblastoma, 4 multicystic ameloblastoma, and 20 KCOT, were evaluated immunohistochemically for the presence, localization, distribution, and intensity of calretinin expression. Statistical analysis was done using Chi-square test to intercompare the expression between ameloblastoma and KCOT. Results. Sixteen cases of ameloblastoma (12 unicystic, 4 multicystic) showed positive calretinin staining of ameloblastic epithelium and only one case of KCOT was positive for calretinin, with the positivity restricted to the stellate reticulum like epithelium. Intercomparison between two groups revealed statistically significant difference (P = 0.000). Conclusion. Calretinin appears to be a specific immunohistochemical marker for neoplastic ameloblastic epithelium and may be an important diagnostic adjunct in the differential diagnosis of ameloblastoma and KCOT.
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Affiliation(s)
- Chitra Anandani
- Department of Oral and Maxillofacial Pathology, Pacific Dental College and Hospital, PAHER University, Udaipur, Rajasthan 313024, India
| | - Rashmi Metgud
- Department of Oral and Maxillofacial Pathology, Pacific Dental College and Hospital, PAHER University, Udaipur, Rajasthan 313024, India
| | - Karanprakash Singh
- Department of Public Health Dentistry, Genesis Institute of Dental Sciences and Research, Ferozepur, Punjab 152001, India
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12
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Bologna-Molina R, Salazar-Rodríguez S, Bedoya-Borella AM, Carreón-Burciaga RG, Tapia-Repetto G, Molina-Frechero N. A histopathological and immunohistochemical analysis of ameloblastic fibrodentinoma. Case Rep Pathol 2013; 2013:604560. [PMID: 23476862 PMCID: PMC3580908 DOI: 10.1155/2013/604560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 01/07/2013] [Indexed: 02/07/2023] Open
Abstract
Ameloblastic fibrodentinoma (AFD) is considered a mixed odontogenic tumor that is characterized by conserved epithelial and ectomesenchymal neoplastic components. AFD is composed of long narrow cords and islands of odontogenic epithelium; the epithelial strands lie in a myxoid cell-rich ectomesenchymal tissue with stellate-shaped fibroblasts that exhibit long slender cytoplasmic extensions that resemble dental papilla. The lesions show the presence of dysplastic dentin. Although AFD is a rare entity and its very existence is not completely accepted, based on the extent of histodifferentiation, it is considered to represent a stage between ameloblastic fibroma and ameloblastic fibroodontoma. This study aimed to provide a histopathological and immunohistochemical characterization of this infrequent tumor. A large panel of antibodies including amelogenin, Ck 19, calretinin, syndecan-1, E-cadherin, MSH2, histone H3, and Ki-67 was used to illustrate the nature of the tumor.
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Affiliation(s)
- Ronell Bologna-Molina
- 1Oral Pathology, Research Department, School of Dentistry, Universidad Juárez del Estado de Durango (UJED), 34000 Durango, DGO, Mexico
- 2School of Dentistry, Universidad de la República (UDELAR), 19200 Montevideo, Uruguay
- *Ronell Bologna-Molina:
| | - Sirced Salazar-Rodríguez
- 3Pathology Department, Instituto Nacional de Oncología y Radiobiología (INOR), 10400 Havana, Cuba
| | | | - Ramón Gil Carreón-Burciaga
- 1Oral Pathology, Research Department, School of Dentistry, Universidad Juárez del Estado de Durango (UJED), 34000 Durango, DGO, Mexico
| | - Gabriel Tapia-Repetto
- 2School of Dentistry, Universidad de la República (UDELAR), 19200 Montevideo, Uruguay
| | - Nelly Molina-Frechero
- 5Health Care Department, Universidad Autónoma Metropolitana, Xochimilco, 04960 Mexico City, DF, Mexico
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13
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Fulton A, Arzi B, Murphy B, Naydan DK, Verstraete FJM. The expression of calretinin and cytokeratins in canine acanthomatous ameloblastoma and oral squamous cell carcinoma. Vet Comp Oncol 2012; 12:258-65. [DOI: 10.1111/j.1476-5829.2012.00356.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/31/2012] [Accepted: 08/13/2012] [Indexed: 12/01/2022]
Affiliation(s)
- A. Fulton
- William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine; University of California; Davis CA USA
| | - B. Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California; Davis CA USA
| | - B. Murphy
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine; University of California; Davis CA USA
| | - D. K. Naydan
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine; University of California; Davis CA USA
| | - F. J. M. Verstraete
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California; Davis CA USA
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14
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Hubbard MJ, McHugh NJ, Mangum JE. Exclusion of all three calbindins from a calcium-ferry role in rat enamel cells. Eur J Oral Sci 2012; 119 Suppl 1:112-9. [PMID: 22243236 DOI: 10.1111/j.1600-0722.2011.00890.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
It is widely accepted that healthy enamel formation depends on a steady supply of calcium, yet only fragmentary understanding exists about the mechanisms underlying transepithelial calcium transport. Several lines of evidence indicate that calcium principally follows a transcellular route, which classically is thought to be facilitated by cytosolic calcium-binding proteins termed calbindins. In enamel cells, however, this 'calcium-ferry' dogma appears to fail as we previously found that the major calbindin in murine enamel cells (calbindin-28 kDa) was down-regulated during the peak period of calcium transport and enamel was formed normally in mice lacking calbindin-28 kDa. It remains to be clarified whether the two other known calbindins could function as calcium ferries instead. This study used biochemical and proteomic approaches to obtain definitive identification and quantification of the 30-kDa calbindin (calretinin) and calbindin-9 kDa (S100-G) in enamel epithelium from rat. By establishing that both of these calbindins contribute insufficient calcium capacities in molars and incisors, our results render the calcium-ferry dogma untenable. Of significance to enamel defects and dental bioengineering, these findings support other evidence for an alternative organelle-based mode of calcium transport (calcium transcytosis) and also implicate S100-G/calbindin-9 kDa, but not calretinin, in a calcium-signaling role during enamel maturation.
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Affiliation(s)
- Michael J Hubbard
- Department of Biochemistry, University of Otago, Dunedin, New Zealand.
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Modolo F, Biz MT, de Sousa SM, Fachinelli RDL, Crema VO. Immunohistochemical expression of Rho GTPases in ameloblastomas. J Oral Pathol Med 2011; 41:400-7. [PMID: 22092654 DOI: 10.1111/j.1600-0714.2011.01108.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Rho GTPases are proteins that regulate cell cycle, shape, polarization, invasion, migration, and apoptosis, which are important characteristics of normal and neoplastic cells. Rho GTPases expression has been reported in normal tooth germ and several pathologies; however, it has not been evaluated in ameloblastomas. The aim of this study was to analyze the expression and distribution of RhoA, RhoB, Rac1, and Cdc42 Rho GTPases in solid and unicystic ameloblastomas. Three-micrometer sections from paraffin-embedded specimens were evaluated by using an avidin-biotin immunohistochemical method with antibodies against the proteins mentioned above. RhoA and RhoB staining was observed in a high number of cells (P < 0.05) and greater intensity in non-polarized ones. Rac1 was not observed, and Cdc42 did not show any statistical differences between the number of non-polarized and basal positive cells (P > 0.05). Upon comparing the studied ameloblastomas, a higher number of positive cells in the unicystic variant was observed than that in the solid one (P < 0,05). The results obtained suggest that these GTPases could play a role in the ameloblastoma neoplastic epithelial cell phenotype determination (polarized or non-polarized), as well as in variant (solid or unicystic) and subtype (follicular or plexiform) determination. Furthermore, they could participate in solid ameloblastoma invasion mechanisms.
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Affiliation(s)
- Filipe Modolo
- Pathology Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil.
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Cairns L, Naidu A, Robinson CM, Sloan P, Wright JM, Hunter KD. CD56 (NCAM) expression in ameloblastomas and other odontogenic lesions. Histopathology 2010; 57:544-8. [PMID: 20875069 DOI: 10.1111/j.1365-2559.2010.03658.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Ameloblastomas recapitulate certain elements of tooth formation. CD56 is expressed by a variety of cells and is used in tumour diagnosis, but is also expressed in the enamel organ during tooth development. The aim of this study was to describe the expression of CD56 in odontogenic lesions with particular reference to the differential diagnosis of ameloblastoma and odontogenic keratocyst. METHODS Cases were selected from the pathology archives at Glasgow Royal Infirmary, Glasgow, Royal Victoria Infirmary, Newcastle and Department of Diagnostic Sciences, Texas A&M Health Science Center Baylor College of Dentistry, Dallas. The study population included 38 ameloblastomas, 19 odontogenic keratocysts and a number of other odontogenic lesions, including nine compound odontomes. All sections were examined for CD56 immunoreactivity and the extent of staining was recorded. RESULTS Thirty-seven of 38 (97%) ameloblastomas expressed CD56 on the cell membrane of peripheral cells in tumour nests (16 extensively, 21 focally). Immunoreactivity was lost in areas of inflammation, acanthomatous differentiation, in areas of cystic change and upon fusion with overlying surface epithelium. One odontogenic keratocyst expressed CD56 (5%, P < 0.0001). CD56 was expressed very focally in two odontomes, exclusively in stratum intermedium-like cells. CONCLUSIONS CD56 expression in odontogenic epithelium is highly suggestive of ameloblastoma and can help in differentiating this from odontogenic keratocyst.
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Affiliation(s)
- Lindsey Cairns
- Glasgow Dental Hospital and School, Faculty of Medicine, University of Glasgow, Glasgow, UK
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Gomes CC, Duarte AP, Diniz MG, Gomez RS. Review article: Current concepts of ameloblastoma pathogenesis. J Oral Pathol Med 2010; 39:585-91. [PMID: 20618608 DOI: 10.1111/j.1600-0714.2010.00908.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ameloblastoma is a locally destructive and invasive tumour that can recur despite adequate surgical removal. Molecular studies have offered interesting findings regarding ameloblastoma pathogenesis. In the present review, the following topics are discussed regarding its molecular nature: clonality, cell cycle proliferation, apoptosis, tumour suppressor genes, ameloblastin and other enamel matrix proteins, osteoclastic mechanism and matrix metalloproteinases and other signalling molecules. It is clear from the literature reviewed that translational studies are necessary to identify prognostic markers of ameloblastoma behaviour and to establish new diagnostic tools to the differential diagnosis of unicystic from multicystic ameloblastoma. Finally, molecular biology studies are also important to develop more effective alternative approaches to the treatment of this aggressive odontogenic tumour.
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Modolo F, Biz MT, Martins MT, Machado de Sousa SO, de Araújo NS. Expression of extracellular matrix proteins in adenomatoid odontogenic tumor. J Oral Pathol Med 2010; 39:230-5. [DOI: 10.1111/j.1600-0714.2009.00846.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sundaragiri SK, Chawda J, Gill S, Odedra S, Parmar G. Calretinin Expression in Unicystic Ameloblastoma: An Aid in Differential Diagnosis. J Oral Biosci 2010. [DOI: 10.1016/s1349-0079(10)80046-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ide F, Mishima K, Saito I, Kusama K. Diagnostically challenging epithelial odontogenic tumors: a selective review of 7 jawbone lesions. Head Neck Pathol 2009; 3:18-26. [PMID: 20596984 PMCID: PMC2807539 DOI: 10.1007/s12105-009-0107-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Accepted: 01/16/2009] [Indexed: 10/25/2022]
Abstract
Considerable variation in the clinicopathologic presentation of epithelial odontogenic tumors can sometimes be confusing and increase the chance of misdiagnosis. Seven diagnostically challenging jawbone lesions are described. There were 2 cases of mistaken identity in our ameloblastoma file. One unicystic type, initially diagnosed and treated as a lateral periodontal cyst, showed destructive recurrence 6 years postoperatively. The other globulomaxillary lesion was managed under the erroneous diagnosis of adenomatoid odontogenic tumor and recurred 4 times over an 11-year period. This tumor was found in retrospect to be consistent with an adenoid ameloblastoma with dentinoid. The diagnosis of cystic squamous odontogenic tumor (SOT) occurring as a radicular lesion of an impacted lower third molar was one of exclusion. Of two unsuspected keratocystic odontogenic tumors, one depicted deceptive features of pericoronitis, while the other case has long been in our files with the diagnosis of globulomaxillary SOT. Two cases of primary intraosseous squamous cell carcinoma appeared benign clinically and exhibited unexpected findings; an impacted third molar began to erupt in association with the growth of carcinoma and another periradicular carcinoma showed dentinoid formation. Cases selectively reviewed in this article present challenging problems which require clinical and radiographic correlation to avoid potential diagnostic pitfalls.
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Affiliation(s)
- Fumio Ide
- Department of Pathology, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, 230-8501, Japan.
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Kawai S, Ito E, Yamaguchi A, Eishi Y, Okada N. Immunohistochemical characteristics of odontogenic carcinomas: their use in diagnosing and elucidating histogenesis. ACTA ACUST UNITED AC 2009. [DOI: 10.3353/omp.13.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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