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Almeida LE, Loyd D, Boettcher D, Kraft O, Zammuto S. Immunohistochemical Analysis of Dentigerous Cysts and Odontogenic Keratocysts Associated with Impacted Third Molars-A Systematic Review. Diagnostics (Basel) 2024; 14:1246. [PMID: 38928661 PMCID: PMC11202764 DOI: 10.3390/diagnostics14121246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/18/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
OBJECTIVE This systematic review investigates the diagnostic, prognostic, and therapeutic implications of immunohistochemical markers in dentigerous cysts (DCs) and odontogenic keratocysts (OKCs) associated with impacted third molars. MATERIALS AND METHODS A comprehensive search strategy was employed across major databases including MEDLINE/PubMed, EMBASE, and Web of Science, from the inception of the databases to March 2024. Keywords and Medical Subject Heading (MeSH) terms such as "dentigerous cysts", "odontogenic keratocysts", "immunohistochemistry", "Ki-67", and "p53" were used. The PRISMA 2020 guidelines were followed to ensure methodological rigor. Inclusion criteria encompassed studies on humans and animals providing definitive diagnoses or specific signs and symptoms related to DCs and OKCs, with results on protein expression derived from immunohistochemistry, immune antibody, proteomics, or protein expression methods. RESULTS Of the 159 studies initially identified, 138 met the inclusion criteria. Our analysis highlighted significantly higher expressions of Ki-67 (22.1% ± 4.7 vs. 10.5% ± 3.2, p < 0.001), p53 (15.3% ± 3.6 vs. 5.2% ± 1.9, p < 0.001), and Bcl-2 (18.4% ± 3.2 vs. 8.7% ± 2.4, p < 0.001) in OKCs compared to DCs, indicating a higher proliferative index, increased cellular stress, and enhanced anti-apoptotic mechanisms in OKCs. Additionally, PCNA levels were higher in OKCs (25.6% ± 4.5 vs. 12.3% ± 3.1, p < 0.001). Genetic mutations, particularly in the PTCH1 gene, were frequently observed in OKCs, underscoring their aggressive behavior and potential malignancy. CONCLUSIONS The findings emphasize the significant role of immunohistochemical markers in distinguishing between DCs and OKCs, with elevated levels of Ki-67, p53, Bcl-2, and PCNA in OKCs suggesting a higher potential for growth and recurrence. Genetic insights, including PTCH1 mutations, further support the need for personalized treatment approaches. These markers enhance diagnostic accuracy and inform targeted therapeutic strategies, potentially transforming patient management in oral and maxillofacial surgery.
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Affiliation(s)
- Luis Eduardo Almeida
- Surgical Sciences Department, School of Dentistry, Marquette University, Milwaukee, WI 53233, USA
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Thete SG, Deshmukh A, Yadav R, Umbare D, Shinde KN, Kandalkar S. A Comparative Evaluation of Collagen in Ameloblastoma and Oral Squamous Cell Carcinoma using Picrosirius Red Staining with Polarizing Microscopy and CD44v6 Immunoreactivity. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:S952-S955. [PMID: 37694046 PMCID: PMC10485468 DOI: 10.4103/jpbs.jpbs_269_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: 03/15/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 09/12/2023] Open
Abstract
Background Solid multicystic ameloblastoma (SMA) is a locally aggressive, benign odontogenic tumor of odontogenic origin with greater rate of recurrence. Epithelial-mesenchymal interaction plays an important role in tooth morphogenesis that shows complete differentiation of epithelial and ectomesenchymal components to the level of tooth formation. Tumor stroma in ameloblastoma is normal mature collagen that prevents differentiation to the level of tooth formation. Current study evaluates the role of stromal elements in aggressive behavior of SMA using picrosirius red staining with polarizing microscopy and CD44v6 immunohistochemistry (IHC). Objectives To compare nature of collagen using picrosirius red staining under polarized microscope and IHC expression of CD44v6 marker in SMA and oral squamous cell carcinoma (OSCC). Methods Thirty blocks were retrieved from departmental archives and subjected to picrosirius red staining and CD44v6 IHC staining. Slides stained with picrosirius red were observed under polarized microscope to report the birefringence pattern. IHC slides were annotated for intensity of staining of tumor cells. Results In contrast to OSCC's 40% red, 40% yellowish-red, and 20% greenish-yellow birefringence, SMA displayed 87% red, 13% yellowish-red, and 0% greenish-yellow. Compared to OSCC, which had tumor cells stained 9% strongly, 64% moderately, 27% mildly, and 0% negatively, SMA revealed 0% strong, 10% moderate, 60% weak, and 30% negative staining. Conclusion As opposed to OSCC, which exhibited a greater quantity of greenish-yellow birefringence of immature collagen, SMA showed predominantly red birefringence, which is suggestive of mature collagen with a lack of metastasis. Comparing SMA to OSCC, the lack of significant CD44v6 positivity suggests that there has not been perineural invasion or regional metastases in SMA.
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Affiliation(s)
- Sanjay G. Thete
- Department of Oral Pathology and Microbiology Rural Dental College, Pravara Institute of Medical Sciences (DU), Loni, Maharashtra, India
| | - Atul Deshmukh
- Center for Interdisciplinary Research, D Y Patil University, Navi Mumbai, Maharashtra, India
| | - Renu Yadav
- Department of Oral Pathology and Microbiology, MGV’s KBH Dental College and Hospital, Nashik, Maharashtra, India
| | - Dhirajkumar Umbare
- Department of Oral Pathology, Microbiology, Rural Dental College, Pravara Institute of Medical Sciences, (DU), Loni, Maharashtra, India
| | | | - Sachin Kandalkar
- Department of Oral Pathology and Microbiology, SMBT, Dental College, Sangamner, Ahmednagar, Maharashtra, India
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Molecular biology exploration and targeted therapy strategy of Ameloblastoma. Arch Oral Biol 2022; 140:105454. [DOI: 10.1016/j.archoralbio.2022.105454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 11/19/2022]
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Jofre SA, Roth M, Lahouti AH, Gersten A, Azad AK, Kelsch RD, Asiry S, Goldstein Y, Naeem R, Rao R. Ameloblastoma with adenoid features: Case report with cyto‐histopathologic correlation and molecular findings. Diagn Cytopathol 2022; 50:E140-E145. [DOI: 10.1002/dc.24929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/15/2021] [Accepted: 12/17/2021] [Indexed: 11/12/2022]
Affiliation(s)
- Sebastian A. Jofre
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Maxwell Roth
- Department of Pathology Albert Einstein College of Medicine Bronx New York USA
| | - Arash H. Lahouti
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Adam Gersten
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Abul Kalam Azad
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Robert D. Kelsch
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
- Departments of Dental Medicine and Pathology and Laboratory Medicine Zucker School of Medicine at Hofstra/Northwell Health Uniondale New York USA
| | - Saeed Asiry
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Yitzchak Goldstein
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Rizwan Naeem
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
| | - Rema Rao
- Department of Pathology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
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Martinez-Vargas YDC, Silva-Filho TJD, Oliveira DHIPD, Gonçalo RIC, Queiroz LMG. ING3 and ING4 immunoexpression and their relation to the development of benign odontogenic lesions. Braz Dent J 2021; 32:74-82. [PMID: 34787253 DOI: 10.1590/0103-6440202104279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/08/2021] [Indexed: 11/22/2022] Open
Abstract
The Inhibitor of Growth (ING) gene family is a group of tumor suppressor genes that play important roles in cell cycle control, senescence, DNA repair, cell proliferation, and apoptosis. However, inactivation and downregulation of these proteins have been related in some neoplasms. The present study aimed to evaluate the immunohistochemical profiles of ING3 and ING4 proteins in a series of benign epithelial odontogenic lesions. METHODS The sample comprised of 20 odontogenic keratocysts (OKC), 20 ameloblastomas (AM), and 15 adenomatoid odontogenic tumors (AOT) specimens. Nuclear and cytoplasmic immunolabeling of ING3 and ING4 were semi-quantitatively evaluated in epithelial cells of the odontogenic lesions, according to the percentage of immunolabelled cells in each case. Descriptive and statistics analysis were computed, and the p-value was set at 0.05. RESULTS No statistically significant differences were found in cytoplasmic and nuclear ING3 immunolabeling among the studied lesions. In contrast, AOTs presented higher cytoplasmic and nuclear ING4 labeling compared to AMs (cytoplasmic p-value = 0.01; nuclear p-value < 0.001) and OKCs (nuclear p-value = 0.007). CONCLUSION ING3 and ING4 protein downregulation may play an important role in the initiation and progression of more aggressive odontogenic lesions, such as AMs and OKCs.
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Affiliation(s)
| | | | | | - Rani Iani Costa Gonçalo
- Postgraduate Program in Oral Pathology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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Pandiar D, Ramani P, Krishnan RP, Thamilselvan S, Ramya R. Dysplastic epithelial changes in odontogenic keratocyst: A rare histological presentation with immunohistochemical cognizance. Oral Oncol 2021; 122:105580. [PMID: 34689009 DOI: 10.1016/j.oraloncology.2021.105580] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Deepak Pandiar
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India
| | - Pratibha Ramani
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India.
| | - Reshma Poothakulath Krishnan
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India
| | - Snega Thamilselvan
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India
| | - R Ramya
- Department of Oral Biology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India
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Bisharyan MS, Arsenyan KA, Khachatryan PS, Tonoyan AA. Sudden death from idiopathic giant cell myocarditis. Rechtsmedizin (Berl) 2021. [DOI: 10.1007/s00194-021-00539-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Escobar E, Peñafiel C, Gómez-Valenzuela F, Chimenos-Küstner E, Pérez-Tomás R. Cyclooxygenase-2 protein expression modulates cell proliferation and apoptosis in solid ameloblastoma and odontogenic keratocyst. An immunohistochemical study. J Oral Pathol Med 2021; 50:937-945. [PMID: 34398475 DOI: 10.1111/jop.13237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/03/2021] [Accepted: 07/29/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Cyclooxygenase-2 protein is a critically important mediator in inflammation that influences proliferation, apoptosis, angiogenesis and metastasis. Previous works showed a relationship between cyclooxygenase-2 and tumourigenesis in humans and animal models. In epithelial odontogenic tumours and cysts, increased cell proliferation and survival have been linked to its pathogenesis and tumour development. The aim of the present study was to analyse the immunohistochemical expression of cyclooxygenase-2 in solid ameloblastoma and odontogenic keratocyst and its association with proteins related to cell proliferation and apoptosis. METHODS This study was conducted on 40 cases from the Pathological Anatomy Service, University of Chile. The cases were diagnosed as solid ameloblastoma (n = 21) and odontogenic keratocyst (n = 19) according to WHO 2017. Slides prepared from paraffin-embedded sections were immunohistochemically stained for cyclooxygenase-2, cyclin D1, Ki-67, p63 and Bcl-2. Statistical evaluation was performed by the Shapiro-Wilk test, ANOVA Mann-Whitney test and Spearman's correlation coefficient (p < 0.05). RESULTS There were significant differences in the immunoexpression of cyclin D1, Ki-67 and Bcl-2 between solid ameloblastoma and odontogenic keratocyst. Likewise, there was a significant difference in the immunoexpression of p63 between follicular and plexiform histological types/subtypes of solid ameloblastoma. Lastly, there were statistical associations between cyclooxygenase-2 and Ki-67 for solid ameloblastoma and between cyclooxygenase-2 and p63 for odontogenic keratocyst. CONCLUSION A high level of cyclooxygenase-2 is related to increased cell survival and proliferative activity in solid ameloblastoma and odontogenic keratocyst. This event might contribute to tumoural progression and local invasiveness in these lesions.
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Affiliation(s)
- Enrico Escobar
- Department of Oral Pathology and Medicine, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Cristian Peñafiel
- Department of Oral Pathology and Medicine, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Fernán Gómez-Valenzuela
- Department of Hematology-Oncology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eduardo Chimenos-Küstner
- Department of Odonto-Stomatology, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Ricardo Pérez-Tomás
- Department of Pathology and Experimental Therapy - Bellvitge, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
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Diatta M, Gadji M, Tamba B, Dièmè MJ, Gassama BC, Kane M, Dia Tine S. Genetic and molecular abnormalities in benign maxillomandibular odontogenic cysts and tumours: A review of the literature. ADVANCES IN ORAL AND MAXILLOFACIAL SURGERY 2021. [DOI: 10.1016/j.adoms.2021.100128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Wu RY, Shao Z, Wu TF. Chronic progression of recurrent orthokeratinized odontogenic cyst into squamous cell carcinoma: A case report. World J Clin Cases 2019; 7:1686-1695. [PMID: 31367628 PMCID: PMC6658368 DOI: 10.12998/wjcc.v7.i13.1686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/27/2019] [Accepted: 05/01/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Orthokeratinized odontogenic cyst (OOC) is a benign odontogenic cyst. It is a variant of the common odontogenic keratocyst (OKC). This case report describes a rare malignant transformation of OOC, with the aim of raising awareness of the malignant potential of OOC and distinguishing it from OKC.
CASE SUMMARY In August 2018, a 52-year-old man was referred to the Department of Oral Maxillofacial and Head–Neck Oncology of Wuhan University. The patient presented with severe pain in the left mandible for 2 mo, and had a 5-year history of osteomyelitis and mandibular cyst with three recurrences. His latest diagnosis by pathological examination was OOC of the left mandible with mild-to-moderate local proliferation. However, the cyst showed malignant potential by radiographic examination. We performed partial mandibulectomy and sent the lesion tissue for pathological examination. As expected, the cyst had deteriorated to moderately differentiated squamous cell carcinoma. During postoperative follow-up, the patient went for chemotherapy in September 2018 and successfully completed four cycles.
CONCLUSION Surgeons should be more aware of OOC, which is usually benign but can become malignant.
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Affiliation(s)
- Ruo-Yi Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
| | - Zhe Shao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
| | - Tian-Fu Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan 430072, Hubei Province, China
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Alsaegh MA, Altaie AM, Zhu S. p63 Expression and its Relation to Epithelial Cells Proliferation in Dentigerous Cyst, Odontogenic Keratocyst, and Ameloblastoma. Pathol Oncol Res 2019; 26:1175-1182. [PMID: 31187467 DOI: 10.1007/s12253-019-00680-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 05/30/2019] [Indexed: 10/26/2022]
Abstract
The current controversy about the classification of odontogenic keratocyst reflects the shortage in the understanding of the odontogenic cysts and tumors. The aim of the present study was to investigate p63 immunoexpression and its relation to the proliferation of the epithelial lining in dentigerous cyst (DC), odontogenic keratocyst (OKC), and follicular type of ameloblastoma (AB). The study involved 36 samples, which are DC (n = 12), OKC (n = 9), and AB (n = 15). p63 protein expression was evaluated by immunohistochemistry. The results on Ki-67 expression were obtained from our previous studies and correlated with p63 expressions. p63 was expressed differently in the studied lesions with various distribution in different study samples. Statistical analysis using Kruskal-Wallis test showed a significant difference in the expression of p63 protein among DC, OKC, and AB (p = 0.048). Subsequently, Mann-Whitney U test revealed the expression of p63 protein was significantly higher in OKC than DC (p = 0.018). Interestingly, Spearman's correlation analysis showed a positive correlation between the expression of p63 and Ki-67 in the odontogenic epithelium of DC (σ = 0.757, P = 0.004) and OKC (σ = 0.741, P = 0.022). While no such a positive correlation was found between the two studied markers in AB group (σ = 0.006, P = 0.983). In conclusion, the present results indicated various expression and correlation of p63 with the proliferation of odontogenic epithelial cells in DC, OKC, and AB. This diversity could reflect a different role and pathways of ΔNp63 in odontogenic tumor than that in odontogenic cyst. These together will help in better understanding the pathogenesis and biological behavior of odontogenic cysts and tumors.
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Affiliation(s)
- Mohammed Amjed Alsaegh
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Science and Technology of Fujairah, Al-Hulifat, Fujairah, 2202, United Arab Emirates. .,Department of Oral and Maxillofacial Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China.
| | - Alaa Muayad Altaie
- Sharjah Medical Research Institute, Medical College, Sharjah University, Sharjah, United Arab Emirates
| | - Shengrong Zhu
- Department of Oral and Maxillofacial Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China
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Fatemeh M, Sepideh A, Sara BS, Nazanin M. P53 Protein Expression in Dental Follicle, Dentigerous Cyst, Odontogenic Keratocyst, and Inflammatory Subtypes of Cysts: An Immunohistochemical Study. Oman Med J 2017; 32:227-232. [PMID: 28584604 DOI: 10.5001/omj.2017.42] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES An odontogenic keratocyst (OKC) is a developmental odontogenic cyst with aggressive clinical behavior. This cyst shows a different growth mechanism from the more common dentigerous cyst and now has been renamed as a keratocystic odontogenic tumor (KCOT). Inflammation can assist tumor growth via different mechanisms including dysregulation of the p53 gene. This study aims to assess and compare the expression of tumor suppressor gene p53 in inflamed and non-inflamed types of OKC and dentigerous cyst. METHODS Immunohistochemical expression of p53 was assessed in 14 cases of dental follicle, 34 cases of OKC (including 18 inflamed OKCs), and 31 cases of dentigerous cyst (including 16 inflamed cysts). RESULTS The mean percentage of p53 positive cells was 0.7% in dental follicles, 5.4% in non-inflamed OKCs, 17.3% in inflamed OKCs, 1.2% in non-inflamed dentigerous cysts, and 2.2% in inflamed dentigerous cysts. The differences between the groups were statistically significant (p < 0.050) except for the difference between inflamed and non-inflamed dentigerous cysts, and between dental follicle and non-inflamed dentigerous cyst. CONCLUSIONS The difference in p53 expression in OKC and dentigerous cyst can explain their different growth mechanism and clinical behavior. Inflammation is responsible for the change in behavior of neoplastic epithelium of OKC via p53 overexpression.
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Affiliation(s)
- Mashhadiabbas Fatemeh
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arab Sepideh
- Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagheri Seyedeh Sara
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Mahdavi Nazanin
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Chandrangsu S, Sappayatosok K. p53, p63 and p73 expression and angiogenesis in keratocystic odontogenic tumors. J Clin Exp Dent 2016; 8:e505-e511. [PMID: 27957261 PMCID: PMC5149082 DOI: 10.4317/jced.52843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/17/2016] [Indexed: 01/30/2023] Open
Abstract
Background Keratocystic odontogenic tumors (KCOTSs) are odontogenic tumors previously referred to as odontogenic keratocysts. Several studies have reported that KCOT behavior is more like that of a benign neoplasm than a cyst. KCOTs are locally destructive and exhibit a high recurrence rate. The objective of this study is to characterize the expression of p53, p63 and p73 in KCOTs together with the relationship between their expression and KCOT angiogenesis and recurrence. Material and Methods Standard indirect immunohistochemistry using monoclonal antibodies specific to human p53, p63, p73 and CD105 was performed in formalin-fixed paraffin-embedded tissue sections of 39 KCOT samples. Grading of p53, p63 and p73 immunohistochemical staining was divided into three groups, whereas microvessel density (MVD) was presented as the mean +/- standard deviation. Associations between p53, p63 and p73 expression and clinical-pathological parameters were analyzed by Fisher’s exact test, whereas associations among MVD levels, clinical and pathological parameters and p53, p63 and p73 expression were analyzed by the Mann-Whitney U test. Correlations among p53, p63, p73 and MVD levels were analyzed using Spearman’s correlation coefficients. For all analyses, p< 0.05 was considered to indicate statistical significance. Results p53, p63 and p73 expression was noted in 23, 32 and 26 of 39 KCOT cases, respectively. The mean MVD was 26.7 ± 15.8 per high-power field. In addition, correlations between the expression levels of p53, p63, p73 and MVD in KCOT were examined. Statistically significant positive relationships were noted for all proteins (p<0.001). Conclusions Three members of the p53 protein family are expressed in KCOTs, and their expression relates to angiogenesis in these tumors. Key words:p53, p63, p73, angiogenesis, keratocystic odontogenic tumors.
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Affiliation(s)
- Soranun Chandrangsu
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Argyris PP, McBeain MJT, Rake A, Pambuccian SE, Gopalakrishnan R, Koutlas IG. Recurrent ameloblastoma of the mandible with unusual granular cell component. Int J Surg Pathol 2015; 23:298-304. [PMID: 25673632 DOI: 10.1177/1066896915570660] [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] [Indexed: 11/16/2022]
Abstract
Ameloblastomas can present in various clinical and histomorphologic patterns. The granular cell variant accounts for only 3.5% to 5% of ameloblastomas. The aim of this case report is to present an example of ameloblastoma with unusual granular cell component, affecting a 63-year-old woman, in which both the inner and peripheral layers of follicles composed exclusively by eosinophilic granular cells. Assessment of the immunohistochemical and histochemical profile of the lesion was performed and the challenges of such a diagnosis were also addressed.
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Affiliation(s)
| | | | - Angela Rake
- University of Minnesota, Minneapolis, MN, USA
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