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Pabbaraju S, Boddeda KR, Sankurathree S, Menon I, Rai NP, Nagella SP. Expression of Calretinin Expression in Odontogenic Cysts and Odontogenic Tumors - Original Research. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2024; 16:S227-S229. [PMID: 38595345 PMCID: PMC11001055 DOI: 10.4103/jpbs.jpbs_469_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/14/2023] [Accepted: 09/21/2023] [Indexed: 04/11/2024] Open
Abstract
Aim The present study was conducted for assessing variability in calretinin expression among odontogenic cysts as well as tumor cases. Materials and Methods Fifteen cases were included in the present research consisting of cases like - dentigerous cyst, odontogenic keratocyst, apical radicular cyst along with tumors like ameloblastoma, ameloblastic carcinoma, adenomatoid odontogenic tumor. Calretinin antibody was used for immunohistochemical staining. The amount of expression of this calretinin was statistically analyzed with the help of Chi-square test where P < 0.05 was considered noteworthy statistically. Results Most cases of ameloblastomas were highly positive for calretinin expression as compared to other cysts and tumors. Therefore, the correlation of this variation of expression of calretinin was statistically noteworthy (P = 0.00). Conclusion In this study, we concluded that for ameloblastomas, calretinin can be a specific marker immunohistochemically and can help in identifying the amount of aggressive spread of various odontogenic tumors.
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Affiliation(s)
- Srinivasulu Pabbaraju
- Department of Oral and Maxillofacial Surgery, Adhiparasakthi Dental College and Hospital, Melmaruvathur, Tamil Nadu, India
| | - Kondala R. Boddeda
- Department of Pedodontics and Preventive Dentistry, KIMS Dental College and Hospital, Amalapuram, Andhra Pradesh, India
| | | | - Ipseeta Menon
- Department of Public Health Dentistry, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha, India
| | | | - Sai P. Nagella
- Department of Pediatric Dentistry, Faculty of Dentistry, MAHSA University, Selangor, Malaysia
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Kim CG, Lee GW, Kim HS, Han SY, Han D, Park HM. Case report: Ghost cell odontogenic carcinoma in a dog: diagnostics and surgical outcome. Front Vet Sci 2023; 10:1267222. [PMID: 37929281 PMCID: PMC10620927 DOI: 10.3389/fvets.2023.1267222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/18/2023] [Indexed: 11/07/2023] Open
Abstract
A 6 year-old spayed female Poodle presented with a mandibular mass. Radiographic examination revealed osteolysis from the right mandibular canine to the fourth premolar, along with horizontal bone loss and dorsal displacement of the right mandibular first and second premolars. Skull cone beam computed tomography revealed osteolysis at the level of the right mandibular canine and fourth premolar. A destructive bone lesion was observed in the apical area of the right mandibular canine, with mass invasion of the interradicular bone of the right mandibular first molar near the mandibular canal. Consequently, unilateral total mandibulectomy and skin flap surgery were performed. Histopathological examination revealed poorly demarcated and infiltrative neoplastic epithelial cells that formed small islands and trabeculae. Neoplastic cells exhibited the malignant features of cytological atypia and high mitotic activity. Furthermore, the neoplastic epithelial cells frequently showed ghost cell changes and were diagnosed as ghost cell odontogenic carcinoma (GCOC). The dog was followed up for 1 year, during which no severe complications or local recurrence was observed, except for slight mandibular drift, tongue protrusion, and drooling. This case report describes the clinical features, diagnostic imaging, and histologic features of an unreported GCOC in a dog and the favorable outcome following surgical resection.
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Affiliation(s)
- Chun-Geun Kim
- Dentistry and Oral Surgery Service, Evichi Veterinary Dental Hospital, Seoul, Republic of Korea
| | - Ga-Won Lee
- Department of Companion Animal Industry, College of Health and Welfare, Dongshin University, Naju, Republic of Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Seung-Yong Han
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Dawool Han
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hee-Myung Park
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
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3
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Ochi A, Nishioka T, Kurimoto S, Kishi D, Ueno T, Nukada T. Immunohistochemical Characteristics of Spindle Cell Ameloblastic Carcinoma in a Horse. J Comp Pathol 2022; 196:1-5. [DOI: 10.1016/j.jcpa.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/25/2022] [Accepted: 05/31/2022] [Indexed: 10/17/2022]
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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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Immunohistochemical Profile of Ameloblastic Carcinoma Arising from an Amyloid-Producing Odontogenic Tumour in a Miniature Dachshund. J Comp Pathol 2018; 166:54-58. [PMID: 30691607 DOI: 10.1016/j.jcpa.2018.10.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/24/2018] [Accepted: 10/30/2018] [Indexed: 11/20/2022]
Abstract
A 13-year-old female miniature dachshund was presented with a centrally-located sublingual mass in the rostral mandibular region. The focally ulcerated growth completely covered the left (305) and right (405) premolar teeth and partially covered the right canine teeth (404). A punch biopsy sample revealed neoplastic proliferation of odontogenic epithelium arranged in irregular cords with frequent comedo-like necrosis. Following the initial diagnosis of ameloblastic carcinoma, a bilateral rostral hemimandibulectomy was performed. Although the detailed examination of the resected mass was consistent with the initial diagnosis, it also contained birefringent congophilic, amelogenin-labelled amyloid deposits similar to an amyloid-producing odontogenic tumour (APOT) in 30-40% of the mass, in continuity with the ameloblastic carcinoma. All neoplastic cells had diffuse moderate expression of cytokeratin (CK) AE1/AE3 and CK5, diffuse mild expression of CK14 and multifocal moderate expression of CK19. Because the APOT-like growth in the mass was histologically benign, the tumour was diagnosed as an ameloblastic carcinoma arising from an APOT.
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6
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Barceló Oliver F, Kelly P, Sharpe SJ, Ayoub A, Patterson-Kane JC, Pollock PJ. Sclerosing odontogenic carcinoma in the mandible of a horse. EQUINE VET EDUC 2018. [DOI: 10.1111/eve.12978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- F. Barceló Oliver
- The Royal (Dick) School of Veterinary Studies; College of Medicine and Veterinary Medicine; University of Edinburgh; Midlothian UK
| | - P. Kelly
- Philip Leverhulme Equine Hospital; University of Liverpool; Neston Wirral UK
| | - S. J. Sharpe
- School of Veterinary Medicine; University of Calgary; Calgary Alberta Canada
| | - A. Ayoub
- School of Medicine; College of Medicine, Veterinary Medicine and Life Science; University of Glasgow; Dental Hospital; Glasgow UK
| | | | - P. J. Pollock
- The Royal (Dick) School of Veterinary Studies; College of Medicine and Veterinary Medicine; University of Edinburgh; Midlothian UK
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Expression of cytokeratin 14, cytokeratin 19 and E-Cadherin in ameloblastoma correlates with the cytodifferentiation of enamel organ. JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, MEDICINE, AND PATHOLOGY 2018. [DOI: 10.1016/j.ajoms.2017.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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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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Leite-Filho RV, Tagliari NJ, Grandi F, Laisse CJM, Gerardi DG, Pavarini SP. Cytologic features of a feline inductive odontogenic tumor. Vet Clin Pathol 2017; 46:516-519. [PMID: 28510282 DOI: 10.1111/vcp.12498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The feline inductive odontogenic tumor (FIOT) is a rare entity among oral tumors in cats, the cytologic features of which are not well characterized but may prove useful. A fine-needle aspiration biopsy was performed on the right mandible between the permanent canine (404) and permanent fourth premolar (408) of an 8-month-old female mongrel cat. Cytologic smears showed epithelial cells and occasional spindle cells with extracellular homogenous acidophilic material in a hematic background. The initial diagnosis of benign tumor was confirmed by histopathologic examination of the biopsy specimen. This report describes the cytologic findings in a case of FIOT.
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Affiliation(s)
- Ronaldo V Leite-Filho
- Department of Veterinary Pathology, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Nelson J Tagliari
- Department of Animal Medicine, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Fabrizio Grandi
- Department of Pathology, Botucatu Medical School, Universidade Estadual Paulista - UNESP, Botucatu, Brazil
| | - Cláudio J M Laisse
- Department of Veterinary Pathology, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Daniel G Gerardi
- Department of Animal Medicine, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Saulo P Pavarini
- Department of Veterinary Pathology, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
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10
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Yang K, Wang Y, Ju Y, Li G, Liu C, Liu J, Liu Q, Wen X, Liu LC. p75 neurotrophin receptor regulates differential mineralization of rat ectomesenchymal stem cells. Cell Prolif 2016; 50. [PMID: 27672006 DOI: 10.1111/cpr.12290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 07/30/2016] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES The aim of this study was to investigate whether p75NTR (p75 neurotrophin receptor) regulates differential mineralization capacity of rEMSCs (rat ectomesenchymal stem cells) and underlying mechanisms associated with Mage-D1 (melanoma-associated antigens-D1). MATERIALS AND METHODS Immunohistochemical staining of p75NTR in developing tooth germs was performed on E12.5d (embryonic 12.5 days) and E19.5d (embryonic 19.5 days). E12.5d EMSCs and E19.5d EMSCs were isolated in the same pregnant Sprague-Dawley rats from embryonic maxillofacial processes and tooth germs. p75NTR small-interfering RNA, p75NTR overexpression plasmid, Mage-D1 small-interfering RNA and recombined rat NGF were used to transfect cells. RESULTS p75NTR was expressed in epithelial-mesenchymal interaction areas at E12.5d and E19.5d tooth germ development stages. E19.5d EMSCs had higher p75NTR expression levels and differential mineralization capacity but lower levels of cell proliferation. Under induction by mineralized culture medium, the potential of differential mineralization had identical trends in regulation of p75NTR in EMSCs; Mage-D1 did not fluctuate and TrkA was not expressed. Binding of p75NTR and Mage-D1 were detected. Mage-D1 knockdown significantly down-regulated expression of related genes, which NGF could not rescue. CONCLUSION p75NTR participated in tooth germ development stages and mediated differential mineralization of EMSCs. p75NTR played a critical role in regulating the potential of differential mineralization of EMSCs. Mage-D1 seemed to act as a bridge in the underlying mechanism of effects of p75NTR.
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Affiliation(s)
- Kun Yang
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
| | - Yingying Wang
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
| | - Yingxin Ju
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
| | - Gang Li
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
| | - Chang Liu
- Department of Stomatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Junyu Liu
- Department of Stomatology, Xinqiao Hospital of the Third Military Medical University, Chongqing, China
| | - Qi Liu
- Department of Stomatology, The Affiliated Hospital of Zunyi Medical University, Guizhou, China
| | - Xiujie Wen
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
| | - Lu Chuan Liu
- Department of Stomatology, Daping Hospital of the Third Military Medical University, Chongqing, China
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11
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Hirayama K, Endoh C, Kagawa Y, Ohmachi T, Yamagami T, Nomura K, Matsuda K, Okamoto M, Taniyama H. Amyloid-Producing Odontogenic Tumors of the Facial Skin in Three Cats. Vet Pathol 2016; 54:218-221. [PMID: 27511309 DOI: 10.1177/0300985816660746] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Amyloid-producing odontogenic tumors (APOTs) of the facial skin were diagnosed in 3 domestic cats. The neoplasms had the histopathological characteristics of the odontogenic tumor. The neoplastic cells were present in irregular islands, strands, and sheets. The peripheral neoplastic cells of the islands and strands were arranged in a palisading fashion, while the central cells were polyhedral to stellate and randomly arranged. Multiple spherules of homogeneous eosinophilic material were closely apposed to the neoplastic epithelial cells. The spherules stained with Congo red and produced an apple green birefringence under polarization microscopy, indicative of amyloid. Immunohistochemically, amyloid materials of the neoplasms reacted with polyclonal antibodies for ameloblastin, amelogenin, and sheathlin antibodies. Neoplastic epithelial cells also reacted with antiameloblastin, amelogenin, and sheathlin antibodies, with varied intensity. The histopathological and immunohistochemical characteristics of dermal neoplasms of the 3 cats were analogous to those of APOTs reported in the dog and the cat.
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Affiliation(s)
- K Hirayama
- 1 Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - C Endoh
- 1 Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | | | - T Ohmachi
- 3 Patho Labo Co, Ltd, Shizuoka, Japan
| | | | - K Nomura
- 4 Marupi Lifetech Co, Ltd, Osaka, Japan
| | - K Matsuda
- 1 Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - M Okamoto
- 1 Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - H Taniyama
- 1 Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
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12
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Li S, Ge S, Yang P. Expression of cytokeratins in enamel organ, junctional epithelium and epithelial cell rests of Malassez. J Periodontal Res 2015; 50:846-54. [PMID: 25808290 DOI: 10.1111/jre.12272] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE After tooth formation is complete, it is suggested that continuity exists between the epithelial cell rests of Malassez (ERM), reduced enamel epithelium (REE) and subsequently the junctional epithelium. However, the junctional epithelium was reported to differ from REE and ERM. The developmental relationships between and among them remain controversial. Therefore, in the present study we examined the expression of cytokeratins in the three types of epithelia to investigate the epithelial phenotypes. MATERIAL AND METHODS The maxillae of Wistar rats, 1, 2, 3 and 7 wk of age, were used, and the expression of CK14, CK17, CK19, CK10/CK13 and AE1/AE3 was detected using immunoperoxidase techniques. RESULTS There was negative staining for CK10/CK13 in all the epithelia. ERM stained strongly for AE1/AE3, CK14, CK17 and CK19. During the transformation of inner enamel epithelial (IEE) cells into reduced ameloblasts and subsequently into junctional epithelium, strong staining for CK14 was evident in IEE, REE and junctional epithelium, whereas the expression of AE1/AE3 and of CK19 were initially negative in IEE and then strong in REE and junctional epithelium, respectively. In particular, the expression of CK17 was strongly positive in ERM and REE, but was negative in IEE and junctional epithelium. CONCLUSION ERM are of odontogenic origin and junctional epithelium has an epithelial phenotype different from REE and ERM. This is the first report to demonstrate that CK17 can be used as a marker to distinguish junctional epithelium from ERM.
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Affiliation(s)
- S Li
- Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, Jinan, Shandong Province, China
| | - S Ge
- Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, Jinan, Shandong Province, China.,Department of Periodontology, Hospital of Stomatology, Shandong University, Jinan, Shandong Province, China
| | - P Yang
- Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, Jinan, Shandong Province, China.,Department of Periodontology, Hospital of Stomatology, Shandong University, Jinan, Shandong Province, China
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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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14
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Feline coccygeal teratoma: immunohistochemical characterization of immature tissue components. J Comp Pathol 2014; 151:195-201. [PMID: 25005671 DOI: 10.1016/j.jcpa.2014.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 03/28/2014] [Accepted: 04/23/2014] [Indexed: 11/24/2022]
Abstract
Congenital teratomas arising in the coccygeal region have not been reported in domestic animals. This report describes a congenital coccygeal teratoma in a male Burmese cat. A round to oval expansile mass with solid and cystic areas was found ventral to the 5th to 7th caudal vertebrae. Microscopically, the tumour was composed of derivatives of all three primordial germ layers with neuroectodermal predominance. Immunohistochemical double labelling identified immature tissue components in combination with Sox2, a regulator of stem cell proliferation and differentiation. Few Sox2-positive cells co-expressed the neural crest stem cell markers vimentin and neurotrophin receptor p75(NTR). Not all Sox2- and p75(NTR)-positive cells expressed vimentin. An overlapping expression of vimentin-negative and Sox2-, p75(NTR)-positive cells and GFAP- and p75(NTR)-positive cells may indicate a transition stage from immature to mature non-myelinating Schwann cells. Periaxin-positive myelinating Schwann cells surrounding neurofilament-positive axons were observed. Sox2 was additionally expressed in immature odontogenic epithelial cells and in immature cells of endodermal origin. Sox2 was not observed in mature cells, with the exception of satellite glial cells and mucous glands. Despite the presence of immature tissue components, no recurrence was observed 1 year after surgical removal.
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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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16
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Delaney MA, Singh K, Murphy CL, Solomon A, Nel S, Boy SC. Immunohistochemical and biochemical evidence of ameloblastic origin of amyloid-producing odontogenic tumors in cats. Vet Pathol 2012; 50:238-42. [PMID: 22732361 DOI: 10.1177/0300985812452583] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Amyloid-producing odontogenic tumors (APOT) are rare, and in cats, the histogenesis of the amyloid remains undetermined. In the present study, APOTs in 3 cats were characterized by immunohistochemistry, and the amyloid components analyzed using tandem mass spectrometry. Antiameloblastin antibodies labeled both neoplastic epithelial cells and amyloid in all cases. Neoplastic epithelial cells had strong, diffuse immunoreactivity to antibodies against cytokeratin AE1/AE3, cytokeratin 14, and cytokeratin 19 in all cases and focal immunoreactivity to nerve growth factor receptor antibodies in 2 of 3 cases. Amyloid and some tumor stromal cells were weakly positive for laminin. Calretinin, amelogenin, S100, and glial fibrillary acidic protein antibodies did not label neoplastic epithelial cells or amyloid. Extracted amyloid peptide sequences were compared to the porcine database because the cat genome is not yet complete. Based on this comparison, 1 identical ameloblastin peptide was detected in each tumor. These results suggest that feline APOTs and the amyloid they produce are of ameloblastic lineage.
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Affiliation(s)
- M A Delaney
- Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois 2001 South Lincoln, Urbana, IL 61802, USA.
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Deficient plakophilin-1 expression due to a mutation in PKP1 causes ectodermal dysplasia-skin fragility syndrome in Chesapeake Bay retriever dogs. PLoS One 2012; 7:e32072. [PMID: 22384142 PMCID: PMC3284538 DOI: 10.1371/journal.pone.0032072] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 01/21/2012] [Indexed: 11/24/2022] Open
Abstract
In humans, congenital and hereditary skin diseases associated with epidermal cell-cell separation (acantholysis) are very rare, and spontaneous animal models of these diseases are exceptional. Our objectives are to report a novel congenital acantholytic dermatosis that developed in Chesapeake Bay retriever dogs. Nine affected puppies in four different litters were born to eight closely related clinically normal dogs. The disease transmission was consistent with an autosomal recessive mode of inheritance. Clinical signs occurred immediately after birth with superficial epidermal layers sloughing upon pressure. At three month of age, dogs exhibited recurrent superficial skin sloughing and erosions at areas of friction and mucocutaneous junctions; their coat was also finer than normal and there were patches of partial hair loss. At birth, histopathology revealed severe suprabasal acantholysis, which became less severe with ageing. Electron microscopy demonstrated a reduced number of partially formed desmosomes with detached and aggregated keratin intermediate filaments. Immunostaining for desmosomal adhesion molecules revealed a complete lack of staining for plakophilin-1 and anomalies in the distribution of desmoplakin and keratins 10 and 14. Sequencing revealed a homozygous splice donor site mutation within the first intron of PKP1 resulting in a premature stop codon, thereby explaining the inability to detect plakophilin-1 in the skin. Altogether, the clinical and pathological findings, along with the PKP1 mutation, were consistent with the diagnosis of ectodermal dysplasia-skin fragility syndrome with plakophilin-1 deficiency. This is the first occurrence of ectodermal dysplasia-skin fragility syndrome in an animal species. Controlled mating of carrier dogs would yield puppies that could, in theory, be tested for gene therapy of this rare but severe skin disease of children.
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