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Comparative immunohistochemical analysis of CD34 and PCNA expression in salivary and laryngeal adenoid cystic carcinoma. Ann Diagn Pathol 2022. [DOI: 10.1016/j.anndiagpath.2022.152099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Sa H, Xu Y, Ma X, Wang X, Sun C, Qiu S, Guo Y, Yang Z, Liu Y, Ma K. Efficacy of Immunotherapy Combined with Antiangiogenic Therapy in Treatment-Failure Patients with Advanced Carcinoma Ex Pleomorphic Adenoma of the Submandibular Gland: A Case Report. Curr Oncol 2022; 29:6334-6341. [PMID: 36135067 PMCID: PMC9497983 DOI: 10.3390/curroncol29090498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/20/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Carcinoma ex pleomorphic adenoma (Ca ex PA) is a rare malignant tumor that arises from a primary or recurrent benign pleomorphic adenoma (PA). Ca ex PA has an aggressive behavior and poor prognosis. To date, there are no standardized therapeutic methods. Herein, we reported a case of a 57-year-old Chinese female with Ca ex PA of the submandibular gland. After surgery, cervical lymph nodes recurred, and multiple distant metastases were detected. During the treatment, she received multiple chemotherapies and radiotherapy but suffered from multidrug resistance and repeated disease progression. Hence, PD-1 inhibitor (sintilimab), in combination with anlotinib, was administered, which resulted in better control of pulmonary metastases compared to the other treatment regimens. This provided an alternative treatment option for Ca ex PA of the submandibular gland patients with failed multiple therapies.
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Affiliation(s)
- Huanlan Sa
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Yinghui Xu
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Xiaobo Ma
- Pathology Department, The First Hospital of Jilin University, Changchun 130021, China
| | - Xu Wang
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Chao Sun
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Shi Qiu
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Ye Guo
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
| | - Zhiguang Yang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Yunpeng Liu
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Kewei Ma
- Cancer Center, The First Hospital of Jilin University, Changchun 130021, China
- Correspondence: ; Tel.: +86-0431-8878-2179
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Myroshnychenko MS, Brodetskyi IS, Malanchuk VA, Dyadyk OO, Arseniev OV, Kulbashna YА, Astapenko OO, Brodetska LO, Brodetskyi SB, Bibichenko VO. AN INTEGRATED APPROACH TO THE MORPHOLOGICAL DIAGNOSIS OF DIFFERENT TYPES OF PLEOMORPHIC ADENOMAS OF THE SALIVARY GLAND: LONG-TERM RESEARCH RESULTS. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:1673-1677. [PMID: 35962679 DOI: 10.36740/wlek202207111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim: To describe an integrated approach to the morphological diagnosis of different types of pleomorphic adenomas of the salivary gland. PATIENTS AND METHODS Materials and methods: Surgical and biopsy material from 30 patients with pleomorphic adenomas of epithelial, mixed and mesenchymal variants was studied using histological, immunohistochemical, genetic, morphometric and statistical methods. RESULTS Results: The results of research allowed us to identify methods for determination the pleomorphic adenomas types. The first method requires an immunohistochemical reaction with a monoclonal antibody to human papillomavirus type 16, followed by counting the percentage of positively stained cells in the tumor. Thus, the mesenchymal variant of the tumor is diagnosed when the percentage of positively stained cells is < 40%. In the mixed variant, this indicator is ≥ 40%, but ≤ 70%, and in epithelial variant - > 70%. The second method was based on the multivariate discriminant analysis. Three formulae were derived to determine the tumor types (Fmesenchymal = - 41.03 + 4.96Х1 + 1.11Х2, Fepithelial = - 22.27 + 3.46Х1 + 0.85Х2, Fmixed = - 122.25 + 5.63Х1 + 3.2Х2, here Х1 - number of vessels, Х2 - specific volume of parenchyma). CONCLUSION Conclusions: The authors identified several methods for determining the histological variants of pleomorphic adenomas. These methods will improve the morphological diagnosis of pleomorphic adenomas variants in the preoperative and postoperative periods.
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Affiliation(s)
| | | | | | - Olena O Dyadyk
- SHUPYK NATIONAL HEALTHCARE UNIVERSITY OF UKRAINE, KYIV, UKRAINE
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Scarini JF, Egal ESA, de Lima-Souza RA, Crescencio LR, Emerick C, Kowalski LP, Altemani A, Mariano FV. Two sides of the same coin: Insights into the myoepithelial cells in carcinoma ex pleomorphic adenoma development. Crit Rev Oncol Hematol 2020; 157:103195. [PMID: 33307199 DOI: 10.1016/j.critrevonc.2020.103195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/11/2020] [Accepted: 12/06/2020] [Indexed: 11/16/2022] Open
Abstract
The myoepithelial cell seems to play an important role as a tumor suppressor in the development of carcinoma ex pleomorphic adenoma. Nevertheless, interesting aspects concerning the other side of the coin, i.e., the contribution of the myoepithelial cell to cell proliferation, were brought to light. Here we highlighted the studies in which myoepithelial cells were presented as tumor suppressors and promoters in the context of PA malignant transformation. In conclusion, even if in a paracrine way, divergent signals can alter the suppressor role of the myoepithelial cell and induce it to compose a microenvironment propitious to the tumor progression of the malignant cells. This would cause myoepithelial cells to succumb and malignant epithelial cells to initiate progression beyond the basal membrane.
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Affiliation(s)
- João Figueira Scarini
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil; Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Erika Said Abu Egal
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil; Department of Pathology, School of Medicine, University of Utah (UU), Salt Lake City, UT, United States
| | - Reydson Alcides de Lima-Souza
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil; Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Lívia Ramalho Crescencio
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil; Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Carolina Emerick
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, Sao Paulo, Brazil
| | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, São Paulo, Sao Paulo, Brazil
| | - Albina Altemani
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Fernanda Viviane Mariano
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil.
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Pouloudi D, Sotiriadis A, Theodorakidou M, Sarantis P, Pergaris A, Karamouzis MV, Theocharis S. The Impact of Angiogenesis in the Most Common Salivary Gland Malignant Tumors. Int J Mol Sci 2020; 21:ijms21249335. [PMID: 33302367 PMCID: PMC7762607 DOI: 10.3390/ijms21249335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/26/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
Salivary gland carcinomas (SGCs) represent a group of rare tumors, with complete surgical resection being the main treatment option. Therapeutic armory for cases of locally aggressive, recurrent, and/or metastatic SGCs, though, remains poor since they exhibit high rates of resistance to systematic therapy. Angiogenesis is considered one of the contemporary hallmarks of cancer and anti-angiogenic factors have already been approved for the treatment of several cancer types. This review aims to summarize, in a histotype-specific manner, the most current available data on the angiogenic factors implicated in SGC angiogenesis, in order to highlight the differences between the most common SGC histotypes and the factors that may have a potential role as therapeutic targets.
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Affiliation(s)
- Despoina Pouloudi
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (A.S.); (M.T.); (A.P.)
| | - Aristoteles Sotiriadis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (A.S.); (M.T.); (A.P.)
| | - Margarita Theodorakidou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (A.S.); (M.T.); (A.P.)
| | - Panagiotis Sarantis
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.S.); (M.V.K.)
| | - Alexandros Pergaris
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (A.S.); (M.T.); (A.P.)
| | - Michalis V. Karamouzis
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.S.); (M.V.K.)
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (A.S.); (M.T.); (A.P.)
- Correspondence: or ; Tel.: +30-210-7462178; Fax: +30-210-7456259
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Rocha FG, de Almeida Reis SR, de Araújo RP, Martins GB, Medrado AR. Characterization of vascular density and collagenous matrix in oral pleomorphic adenomas. ACTA ACUST UNITED AC 2020; 69:215-222. [PMID: 32181613 DOI: 10.23736/s0026-4970.19.04308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Tumor vascular density and collagen matrix organization are critical factors to neoplasia development and progression. This study aimed to analyze the variables associated with the extracellular matrix in oral pleomorphic adenomas. METHODS This cross-sectional study comparatively evaluated 21 cases of pleomorphic adenomas and 21 sections of regular oral mucosa from the files of an oral pathology department. The tissue sections were subjected to immunohistochemical study with a monoclonal antibody specific to CD31 protein to assess vascular density and were also stained with Sirius red to evaluate the levels of collagen. The numbers of positively-stained cells were enumerated in specific fields through morphometric study, with subsequent statistical analysis. RESULTS Higher numbers of CD31-positive cells were observed in tumor cells than in cells in the regular oral mucosa (P=0.004), which were always located around blood vessels. In tumor lesions, the correlation between the collagen area and vascular density was discrete between these two variables (r=0.046), although the association was not statistically significant. CONCLUSIONS The results suggested that the increased expression of CD31+ in cells associated with capillaries may be related to tumor neoangiogenesis. Furthermore, an increase in the concentration of collagen fibers proportional to the number of blood vessels in the neoplastic sections suggested the active role of these lesions in the remodeling process.
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Affiliation(s)
- Flávia G Rocha
- Department of Bio-Interaction, Federal University of Bahia, Salvador, BA, Brazil
| | | | - Roberto P de Araújo
- Department of Biochemistry Program in Interactive Processes of Organs and Systems, Federal University of Bahia, Salvador, BA, Brazil
| | - Gabriela B Martins
- Department of Biochemistry Program in Interactive Processes of Organs and Systems, Federal University of Bahia, Salvador, BA, Brazil
| | - Alena R Medrado
- Department of Bio-Interaction, Federal University of Bahia, Salvador, BA, Brazil -
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Sowa P, Goroszkiewicz K, Szydelko J, Chechlinska J, Pluta K, Domka W, Misiolek M, Scierski W. A Review of Selected Factors of Salivary Gland Tumour Formation and Malignant Transformation. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2897827. [PMID: 30155477 PMCID: PMC6092996 DOI: 10.1155/2018/2897827] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/12/2018] [Indexed: 12/13/2022]
Abstract
Salivary gland tumours represent about 6% of head and neck neoplasms and about 0.5% of all malignancies in humans. Tumour growth and malignant transformation are complex processes involving various actions of molecules. Furthermore, some malignant salivary gland tumours are deemed to be caused by dedifferentiation or malignant transformation of benign tumours. The mechanisms of this transformation depend on a variety of different elements, such as cell cycle regulators, oncogenes, proteins, angiogenesis factors, and adipocytokines. The authors used PubMed, Medline, and Google websites to find and review the most significant papers related to malignant transformation in benign salivary gland tumours.
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Affiliation(s)
- Pawel Sowa
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Karolina Goroszkiewicz
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Joanna Szydelko
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Joanna Chechlinska
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Pluta
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Wojciech Domka
- Department of Otorhinolaryngology, Faculty of Medicine, University of Rzeszow, Poland
| | - Maciej Misiolek
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Wojciech Scierski
- Department of Otorhinolaryngology and Oncological Laryngology in Zabrze, Medical University of Silesia, Katowice, Poland
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Chen S, Le T, Harley BAC, Imoukhuede PI. Characterizing Glioblastoma Heterogeneity via Single-Cell Receptor Quantification. Front Bioeng Biotechnol 2018; 6:92. [PMID: 30050899 PMCID: PMC6050407 DOI: 10.3389/fbioe.2018.00092] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
Dysregulation of tyrosine kinase receptor (RTK) signaling pathways play important roles in glioblastoma (GBM). However, therapies targeting these signaling pathways have not been successful, partially because of drug resistance. Increasing evidence suggests that tumor heterogeneity, more specifically, GBM-associated stem and endothelial cell heterogeneity, may contribute to drug resistance. In this perspective article, we introduce a high-throughput, quantitative approach to profile plasma membrane RTKs on single cells. First, we review the roles of RTKs in cancer. Then, we discuss the sources of cell heterogeneity in GBM, providing context to the key cells directing resistance to drugs. Finally, we present our provisionally patented qFlow cytometry approach, and report results of a "proof of concept" patient-derived xenograft GBM study.
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Affiliation(s)
- Si Chen
- Department of Bioengineering, University of Illinois at Urbana–Champaign, Champaign, IL, United States
| | - Thien Le
- Department of Mathematics and Department of Computer Science, University of Illinois at Urbana–Champaign, Champaign, IL, United States
| | - Brendan A. C. Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana–Champaign, Urbana, IL, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, United States
| | - P. I. Imoukhuede
- Department of Bioengineering, University of Illinois at Urbana–Champaign, Champaign, IL, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL, United States
- Department of Biomedical Engineering, Washington University, St. Louis, MO, United States
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9
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Fonseca FP, Bingle L, Santos-Silva AR, Lopes MA, Coletta RD, de Andrade BAB, Mariano FV, Kowalski LP, Rangel ALCA, Martins MD, Meurer L, Hunter KD, Speight PM, Vargas PA. Immunoexpression of hoxb7 and hoxb9 in salivary gland tumours. J Oral Pathol Med 2016; 45:672-681. [DOI: 10.1111/jop.12438] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Felipe Paiva Fonseca
- Piracicaba Dental School and Faculty of Medicine; University of Campinas; Piracicaba Brazil
- Department of Oral and Maxillofacial Pathology; School of Clinical Dentistry; The University of Sheffield; Sheffield UK
| | - Lynne Bingle
- Department of Oral and Maxillofacial Pathology; School of Clinical Dentistry; The University of Sheffield; Sheffield UK
| | | | - Márcio Ajudarte Lopes
- Piracicaba Dental School and Faculty of Medicine; University of Campinas; Piracicaba Brazil
| | - Ricardo D. Coletta
- Piracicaba Dental School and Faculty of Medicine; University of Campinas; Piracicaba Brazil
| | | | | | - Luiz Paulo Kowalski
- Department of Otorhinolaryngology and Head and Neck Surgery; A.C. Camargo Cancer Center; Sao Paulo Brazil
| | | | | | - Luise Meurer
- Medical and Dental Schools; Federal University of Rio Grande do Sul; Rio Grande do Sul Brazil
| | - Keith D. Hunter
- Department of Oral and Maxillofacial Pathology; School of Clinical Dentistry; The University of Sheffield; Sheffield UK
- Department of Oral Pathology and Oral Biology; School of Dentistry; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
| | - Paul M. Speight
- Department of Oral and Maxillofacial Pathology; School of Clinical Dentistry; The University of Sheffield; Sheffield UK
| | - Pablo Agustin Vargas
- Piracicaba Dental School and Faculty of Medicine; University of Campinas; Piracicaba Brazil
- Department of Oral Pathology and Oral Biology; School of Dentistry; Faculty of Health Sciences; University of Pretoria; Pretoria South Africa
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10
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Mafra RP, Serpa MS, Queiroz SIML, Lima RLDFX, Souza LBD, Pinto LP. Expressão imunoistoquímica da endoglina (CD105) e do fator de von Willebrand em carcinoma epidermoide oral e sua relação com parâmetros clinicopatológicos. J Vasc Bras 2016. [DOI: 10.1590/1677-5449.008615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo Contexto A angiogênese tem sido associada à progressão de neoplasias malignas e, embora haja estudos acerca de marcadores angiogênicos no carcinoma epidermoide oral (CEO), existem resultados conflitantes na literatura. Objetivos Avaliar a expressão imunoistoquímica do CD105 e do fator de von Willebrand (FvW) em CEO e sua relação com parâmetros clínicos do tumor. Métodos A imunoexpressão dos referidos biomarcadores foi analisada em 30 casos de CEO e correlacionada a parâmetros clínicos do tumor (idade e sexo dos pacientes, localização anatômica e estadiamento clínico Tumor, Nodo e Metástase, TNM). Resultados A imunomarcação com o anticorpo anti-FvW foi mais efetiva que a do CD105 no CEO. No que concerne à localização anatômica, o assoalho bucal e a região retromolar apresentaram diferenças estatisticamente significativas quanto aos índices angiogênicos (p = 0,004), determinados pela técnica de contagem microvascular (MVC). Não houve relação estatisticamente significativa entre o estadiamento clínico TNM e os índices angiogênicos, com os dois biomarcadores. Conclusões Com base nos achados deste estudo, sugere-se um envolvimento da neoformação vascular na carcinogênese oral, embora não tenha sido evidenciada associação significativa com o estágio clínico da lesão.
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Moghadam SA, Abadi AM, Mokhtari S. Immunohistochemical analysis of CD34 expression in salivary gland tumors. J Oral Maxillofac Pathol 2015; 19:30-3. [PMID: 26097303 PMCID: PMC4451663 DOI: 10.4103/0973-029x.157197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 04/14/2015] [Indexed: 11/10/2022] Open
Abstract
Background: Tumor growth depends on angiogenesis which is assessed by measuring the tumor microvessel density (MVD) through CD34 immunostaining. The present study was performed to evaluate the situation of angiogenic activity in salivary gland neoplasms. The possible role of CD34 in progression and invasion of salivary gland tumors is also investigated. Materials and Methods: Tissue specimens of 15 pleomorphic adenoma (PA) and 15 malignant salivary gland tumors including mucoepidermoid carcinoma (MEC), adenoid cystic carcinoma (AdCC) and salivary duct carcinoma (SDC) were immunostained for CD34 protein. The most vascularized areas at low power magnification (hotspots) were selected for vessel counting at ×400 magnification. Then, the mean number of microvessels in three fields within the tumor mass was calculated. Results: MVD in PA and malignant salivary gland tumors were 10.93 ± 5.95 and 26.46 ± 7.32, respectively. Tumor angiogenesis in PA was much lower than other lesions (P < 0.05). No significant difference was observed between malignant tumors (P > 0.05). Conclusion: Salivary gland carcinomas demonstrated higher vascular density than benign PA despite of cell types and architecture. The reason for this higher angiogenic activity could be related to metabolic characteristics of malignant cells.
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Affiliation(s)
- Saede Atarbashi Moghadam
- Department of Oral and Maxillofacial Pathology, Dental School of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ayda Mohammad Abadi
- Department of Oral and Maxillofacial Pathology, Dental School of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepideh Mokhtari
- Department of Oral and Maxillofacial Pathology, Dental School of Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Andreasen S, Therkildsen MH, Grauslund M, Friis-Hansen L, Wessel I, Homøe P. Activation of the interleukin-6/Janus kinase/STAT3 pathway in pleomorphic adenoma of the parotid gland. APMIS 2015; 123:706-15. [PMID: 26061266 DOI: 10.1111/apm.12407] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 04/20/2015] [Indexed: 12/15/2022]
Abstract
The interleukin-6 (IL-6)/Janus kinase (JAK)/signal transducer and activator of transcription 3 (STAT3) pathway is of crucial importance in promoting tumorigenesis in several malignant tumors but may also be active in benign tumors, e.g., of pleomorphic adenoma (PA). In this study we characterize the expression of the pathway components with immunohistochemistry and selected mRNAs and microRNAs (miRNAs) regulated by this pathway in isolated duct- and myoepithelial cells in PA. 46 PAs were immunostained and 10 of these were used for in situ hybridization (ISH). Six frozen specimens were analyzed using reverse transcription-polymerase chain reaction (RT-PCR). Using immunohistochemistry, IL-6, JAK1, JAK2 and STAT3 were detected significantly more frequently in PA cells than in cells from normal salivary gland tissue. Using RT-PCR cyclin D1, fibroblast growth factor 2, and p21 were found to be overexpressed while matrix metallopeptidase 9 was detected at low levels in PA compared to normal salivary gland. ISH showed significant overexpression of miR-181b in PA, while miR-21 was undetectable in PA and normal tissue. Overexpression of the pathway components and its mRNA and miRNA products provide important clues regarding the growth of PAs. Our findings brings us one step closer to targeted treatment of this tumor entity, although in vitro studies are warranted to confirm this.
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Affiliation(s)
- Simon Andreasen
- Department of Otorhinolaryngology Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark.,Department of Otorhinolaryngology and Maxillofacial Surgery, Køge University Hospital, Køge, Denmark.,University of Copenhagen, Copenhagen, Denmark
| | | | | | | | - Irene Wessel
- Department of Otorhinolaryngology Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark
| | - Preben Homøe
- Department of Otorhinolaryngology Head & Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark.,Department of Otorhinolaryngology and Maxillofacial Surgery, Køge University Hospital, Køge, Denmark.,University of Copenhagen, Copenhagen, Denmark
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13
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Watanabe IC, Magalhães RF, de Moraes AM, Stelini RF, Cintra GF, Metze K, Cintra ML. Keratoacanthoma and Keratoacanthoma-Like Squamous Cell Carcinoma: Similar Morphology but Different Pathogenesis. Medicine (Baltimore) 2015; 94:e934. [PMID: 26061320 PMCID: PMC4616484 DOI: 10.1097/md.0000000000000934] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Differential diagnosis between keratoacanthoma (KA) and squamous cell carcinoma (SCC) is difficult due to their similarities. The mechanisms that drive their distinct biological behavior are poorly understood. To investigate whether the assessment of microvessel density (MVD) could be helpful in KA and SCC differential diagnosis and to gain insight into the pathogenesis of KA-like neoplasms, we compared the density of CD105- and CD34-stained vessels in KAs and SCCs and their relation to the expression of the p53 oncoprotein and proliferation marker Ki67. This is an observational retrospective cohort study. Forty lesions with clinical appearance of KAs (29 KAs and 11 SCCs) entered the study. A biopsy was taken from each lesion at presentation and the natural clinical course was monitored for at least 1 month. Growing or minimally regressing lesions were submitted to complete surgical excision. The diagnoses were established on combined clinical, histological, and follow-up evaluations. The MVD and p53 or Ki67 expression in neoplastic cells were assessed through morphometry. The MVD did not show discriminating power between KAs and SCCs. The Ki67 proliferation rate was significantly higher in SCCs. Although neoangiogenesis (CD105-MVD) in KAs was associated with cell proliferation, in SCCs it was not. There was significant correlation between p53 expression and neoplasia size in SCCs but not in KAs. From our results, we may conclude that KA and SCC have similarities, as CD105- and CD34-MVD. However, the low Ki67 proliferation index and the positive correlation between Ki-67 index and neovascularization in KA suggest a dependence in neovascularization to grow in KA, pointing to involvement of distinct pathogenesis.
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Affiliation(s)
- Isabela C Watanabe
- From the Department of Pathology (ICW, RFS, GFC, KM, MLC); Department of Dermatology (RFM, AMM), Medical Sciences School, State University of Campinas, Campinas, Brazil
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14
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Soares AB, Altemani A, de Oliveira TR, de Oliveira Fonseca Rodrigues F, Ribeiro-Silva A, Soave DF, Passador-Santos F, Brum ST, Napimoga MH, de Araújo VC. Comparison of the blood and lymphatic microvessel density of pleomorphic adenoma and Basal cell adenoma. Clin Med Insights Pathol 2015; 8:17-21. [PMID: 25987856 PMCID: PMC4405080 DOI: 10.4137/cpath.s23035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/12/2015] [Accepted: 01/12/2015] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Pleomorphic adenoma (PA) is the most common tumor of the salivary gland, while basal cell adenoma (BCA) is an uncommon neoplasm. Blood and lymphatic vessels are crucial for tumor metabolism. The aim of this study was to compare the blood and lymphatic vascular density and vascular and endothelial growth factor (VEGF) expression in PA and BCA tumors. In addition, cell proliferation was evaluated in these tumors. METHODS Blood and lymphatic vessel content, VEGF expression, and cell proliferation were analyzed in 30 cases of PA and 13 cases of BCA by immu-nohistochemistry using antibodies for CD34, CD105, D2–40, VEGF, and Mcm−2. RESULTS Regarding CD34 and CD105 expression, PA demonstrated a high vascularity and a low number of positive vessels, respectively. D2–40-positive lymphatic vessels were mainly located in the tumor capsules, with small intratumoral lymphatic vessels observed occasionally. VEGF expression revealed a remarkably heterogeneous immunoreactivity, alternating from weak or negative to positive or intense. BCA presented significantly higher CD34, CD34, CD105, D2–40, and VEGF expression compared to PA. No significant difference was found in cell proliferation between the tumors. CONCLUSION Although PA and BCA are considered part of the same spectrum of differentiation, this study showed that the blood and lymphatic vascularization of these tumors is different.
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Affiliation(s)
- Andresa Borges Soares
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Albina Altemani
- Department of Pathology, School of Medicine, State University of Campinas (UNICAMP), São Paulo, Brazil
| | - Thais Ribeiro de Oliveira
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | | | - Alfredo Ribeiro-Silva
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Danilo Figueiredo Soave
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Fabricio Passador-Santos
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Suellen Trentin Brum
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Marcelo Henrique Napimoga
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Vera Cavalcanti de Araújo
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
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15
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Theocharis S, Gribilas G, Giaginis C, Patsouris E, Klijanienko J. Angiogenesis in salivary gland tumors: from clinical significance to treatment. Expert Opin Ther Targets 2015; 19:807-19. [DOI: 10.1517/14728222.2015.1016424] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Density of mast cells and microvessels in minor salivary gland tumors. Tumour Biol 2012; 34:309-16. [DOI: 10.1007/s13277-012-0552-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Accepted: 10/02/2012] [Indexed: 12/22/2022] Open
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17
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Dhanuthai K, Sappayatosok K, Yodsanga S, Rojanawatsirivej S, Pausch NC, Pitak-Arnnop P. An analysis of microvessel density in salivary gland tumours: a single centre study. Surgeon 2012; 11:147-52. [PMID: 22878098 DOI: 10.1016/j.surge.2012.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Accepted: 07/13/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUNDS Microvessel density (MVD) can be used for determining neoplastic neovascularisation. Tumour angiogenesis correlates with prognosis of cancers in many organs. The aims of this study were to evaluate MVD as demonstrated by CD31 and CD105 in salivary gland tumours (SGTs), and to correlate the MVD results with clinicopathological characteristics of the tumours. MATERIALS AND METHODS Using a retrospective cohort study design, we enrolled SGTs patients at the Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand, over the 22-year period. The predictor variables included demographic, anatomic and histopathological parameters. The outcome measure was average CD31-MVD and CD105-MVD counted by the "hot spot" method. Descriptive, uni- and bivariate statistics were computed, and P <0.05 was considered statistically significant. RESULTS The study sample consisted of 43 subjects with a mean age of 39.6 ± 17.8 years (range, 9-82), including 26 females (60.5%), diagnosed with SGTs. In this cohort, 58.1% of the cases were benign, and 83.7% were minor SGTs. There was a significant correlation between CD31-MVD and CD105-MVD (r = 0.8, P < 0.001), but mean CD31-MVD and CD105-MVD were 17.7 ± 9.3 and 12.8 ± 7.4, respectively (P = 0.009). Age, gender and tumour site were not individually associated with significant differences between CD31-MVD and CD105-MVD. Tumours with myoepithelial cells had lower MVD than those without myoepithelial cells (P = 0.04 for CD31; P = 0.03 for CD105). Only CD105-MVD showed statistical difference between benign and malignant SGTs (P = 0.01). CONCLUSIONS These results suggest that MVD in SGTs can be demonstrated by CD31 and CD105. Despite a strong correlation, CD31-MVD is always higher than CD105-MVD and cannot differentiate between benign and malignant SGTs. The presence of myoepithelial cells within SGTs affects the MVD analysis using either CD31 or CD105, while age, gender and tumour location do not.
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Affiliation(s)
- Kittipong Dhanuthai
- Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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18
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Expression of CD34 and CD105 as markers for angiogenesis in oral vascular malformations and pyogenic granulomas. Eur Arch Otorhinolaryngol 2011; 268:1213-1217. [DOI: 10.1007/s00405-010-1472-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 12/23/2010] [Indexed: 11/27/2022]
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19
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Killingsworth MC, Wu X. Vascular Pericyte Density and Angiogenesis Associated with Adenocarcinoma of the Prostate. Pathobiology 2011; 78:24-34. [DOI: 10.1159/000322739] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 11/15/2010] [Indexed: 11/19/2022] Open
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20
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Klubo-Gwiezdzinska J, Van Nostrand D, Burman KD, Vasko V, Chia S, Deng T, Kulkarni K, Wartofsky L. Salivary gland malignancy and radioiodine therapy for thyroid cancer. Thyroid 2010; 20:647-51. [PMID: 20470209 DOI: 10.1089/thy.2009.0466] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The risk of second primary malignancies in patients with well-differentiated thyroid cancer is of special interest because of the common use of radioactive iodine (RAI) ablation and/or treatment of these patients and the theoretical risk of subsequent nonthyroid malignancies associated with the radiation exposure. This brief report focuses specifically on the occurrence of second primary malignancies of the salivary glands. RAI residency within salivary tissues is known to have both acute and chronic consequences on salivary function, but secondary neoplasia is quite unusual. SUMMARY We present a very rare case of a patient with papillary thyroid cancer treated with 600 mCi of RAI, who subsequently developed salivary gland cancer. CONCLUSIONS We recommend salivary gland protection to diminish potential side effects after the exposure to radioiodine. On the basis of our experience we suggest administration of sialogogues (such as lemon juice) continuously, every 30-60 minutes for 24 hours, after RAI administration.
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21
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Furuse C, Miguita L, Rosa ACG, Soares AB, Martinez EF, Altemani A, de Araújo VC. Study of growth factors and receptors in carcinoma ex pleomorphic adenoma. J Oral Pathol Med 2010; 39:540-7. [PMID: 20149060 DOI: 10.1111/j.1600-0714.2009.00858.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Carcinoma ex pleomorphic adenoma (CXPA) is a rare malignant salivary gland tumor derived from a pre-existing pleomorphic adenoma. It is a good model to study the evolution of carcinogenesis, starting with in situ areas to frankly invasive carcinoma. Growth factors are associated with several biological and neoplastic processes by transmembrane receptors. In order to investigate, by immunohistochemistry, the expression of some growth factors and its receptors [EGF receptor, fibroblast growth factor, fibroblast growth factor receptor 1, fibroblast growth factor receptor 2, hepatocyte growth factor, c-Met, transforming growth factor (TGF) beta1, TGFbetaR-II and insulin-like growth factor receptor 1] in the progression of CXPA, we have used ten cases of CXPA in several degrees of invasion- intracapsular, minimally and frankly invasive carcinoma- with only epithelial component. Slides were qualitatively and semi-quantitatively evaluated according to the percentage of stained tumor cells from 0 to 3 (0 = less than 10%; 1 = 10-25%; 2 = 25-50%; 3 = more than 50% of cells). Malignant epithelial cells starting with in situ areas showed stronger expression than luminal cells of pleomorphic adenoma for all antibodies. Most of the intracapsular, minimally and frankly invasive CXPA presented score 3. However, score 2 was more evident in the frankly invasive one. In small nests of invasive carcinoma, negative cells were observed probably indicating that the proliferative process is replaced by the invasive mechanism. Altogether this data infers that these factors may contribute to cell proliferation during initial phases of the tumor.
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Affiliation(s)
- Cristiane Furuse
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
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22
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The anti-tumor properties of two tumstatin peptide fragments in human gastric carcinoma. Acta Pharmacol Sin 2009; 30:1307-15. [PMID: 19701238 DOI: 10.1038/aps.2009.111] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
AIM The aim was to study the anti-tumor activities and mechanisms of two synthetic peptide fragments of tumstatin (alpha3 (IV) NC1 domain) in human gastric carcinoma cells in vitro and in vivo. METHODS MTT assay and cell cycle assay were used to study the anti-tumor and anti-angiogenic activities of two peptide fragments in vitro. Apoptosis induced by the two peptide fragments was demonstrated by TUNEL assay and morphological observation. The orthotopic tumor model was established to investigate the activities of two peptide fragments in vivo. Intratumor vascularization and the expressions of VEGF, bFGF, Fas, FasL, Bax, Bcl-2, and caspase 3 were determined using immunohistochemistry and Western blot analysis. RESULTS Peptide 19 inhibited SGC-7901 proliferation and induced apoptosis both in vitro and in vivo. Notably, peptide 21 suppressed the proliferation of HUVEC-12 cells in vitro. Each peptide arrested both cell lines at the G(0)/G(1) phase of the cell cycle, and they also synergistically suppressed in vitro and in vivo tumor growth. Immunohistochemistry and Western blot analysis revealed the strong expression of Fas, FasL and caspase 3 in orthotopic tumor tissues treated with peptide 19 alone or in combination with peptide 21. Decreased expressions of VEGF and bFGF and decreased microvessel density (MVD) in orthotopic tumor tissues were seen in mice treated with peptide 21 alone or in combination with peptide 19. CONCLUSION Two tumstatin peptide fragments facilitate two unique antitumor activities. Thus, they are drug candidates in the treatment of gastric carcinoma.
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23
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Luukkaa H, Laitakari J, Vahlberg T, Klemi P, Stenbäck F, Grénman R. Morphometric analysis of CD34-positive vessels in salivary gland adenoid cystic and mucoepidermoid carcinomas. J Oral Pathol Med 2009; 38:695-700. [PMID: 19674249 DOI: 10.1111/j.1600-0714.2009.00810.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Carcinomas of the salivary glands are uncommon and morphologically a diverse group of malignancies. To evaluate the prognostic value of CD34 immunostaining of the vessels in adenoid cystic carcinoma (AdCC) and mucoepidermoid carcinoma (MEC), an automated image analysis method was used. METHOD In a nationwide study, covering salivary gland cancer (SGC) patients in Finland 1991-1996, 37 AdCC and 18 MEC patients (M 25, F 30, age 25-90, mean 63) were included. In addition to clinical characteristics the size, shape, staining intensity and vessel density in CD34 immunostained histologic samples were measured. RESULTS Altogether 4433 vessels were measured from AdCC and 2615 from MEC tumor. Of the total tumor vessels measured, 2651 were from patients who deceased with disease (Group I) and 4397 were from specimens derived from those who did not die of disease (Group II) during the 10-year follow-up. The staining intensity was significantly higher in MEC than in AdCC tumor (P = 0.0005). In MEC, the Group I patients had a higher staining intensity among high-grade patients compared with patients with low grade disease, whereas the tumors in Group II had a lower staining intensity among the high-grade compared with the low grade tumors (P = 0.018). A higher vessel density was found in patients with MEC in group II compared with group I (P = 0.017). CONCLUSIONS The staining intensity of CD34 positive vessels in MEC was higher than in AdCC. In MEC, higher staining intensity of vessels in high-grade tumors and lower vessel density in all MEC patients, predicted poor survival.
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Affiliation(s)
- H Luukkaa
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Turku, Turku, Finland
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24
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Soares AB, de Araújo VC, Juliano PB, Altemani A. Angiogenic and lymphangiogenic microvessel density in recurrent pleomorphic adenoma. J Oral Pathol Med 2009; 38:623-9. [PMID: 19563505 DOI: 10.1111/j.1600-0714.2009.00794.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recurrent pleomorphic adenoma (RPA) is an uncommon and challenging disease. The aim of this study was to determine if there is a difference between RPA and the pleomorphic adenoma (PA) without recurrence related to tumor blood and lymphatic vascularization. Moreover, we compared the microvessel density (MVD) between cell-rich areas (predominance of epithelial cells) and cell-poor areas (predominance of myxoid and chondroid areas) of the stroma of PA and RPA. In addition, immunohistochemical staining for the Ki-67 antigen was conducted simultaneously to evaluate cell proliferation in PA and RPA. METHODS A total of 19 cases of PA and 24 cases of RPA, blood, and lymphatic vessels were analyzed by immunohistochemical technique using the antibodies CD34, CD105, D2-40, and Ki-67. RESULTS Comparing no recurrent with recurrent tumor, no significant difference was found in terms of lymphatic vessel density, MVD, and proliferation index. When MVD and proliferation index were compared with different areas in cellular composition (cell-rich and cell-poor areas), there was a significant difference in PA, as well as in RPA. CONCLUSION This study shows that although RPA presents more aggressive clinical behavior than PA, there is no difference between tumor blood and lymphatic vascularization, suggesting that there is no correlation between vascularity and risk of recurrence. Furthermore, vascularized stroma in PA, as well as RPA, depends on the proportion of the cellular composition.
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Affiliation(s)
- Andresa B Soares
- Centro de Pesquisa São Leopoldo Mandic, Rua José Rocha Junqueira 13 Ponte Preta, 13045-755, Campinas, SP, Brazil.
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25
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Metze K, Ferreira RC, Adam RL, Leite NJ, Ward LS, de Matos PS. Chromatin texture is size dependent in follicular adenomas but not in hyperplastic nodules of the thyroid. World J Surg 2009; 32:2744-6. [PMID: 18787892 DOI: 10.1007/s00268-008-9736-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Soares AB, Altemani A, Furuse C, Demasi APD, Gati C, Nunes N, de Araújo VC. Intravascular papillary endothelial hyperplasia: report of 2 cases and immunohistochemical study. ACTA ACUST UNITED AC 2009; 106:708-11. [PMID: 18929993 DOI: 10.1016/j.tripleo.2008.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 08/14/2008] [Accepted: 08/15/2008] [Indexed: 12/12/2022]
Abstract
Intravascular papillary endothelial hyperplasia (IPEH) is a benign, nonneoplastic, vascular lesion. The main significance of the lesion lies in the fact that it may be mistaken for angiosarcoma. Oral lesions are uncommon and the present paper reports 2 cases of oral IPEH, in different sites. Histologically, the tissue was characterized by papillary fronds lined by proliferating endothelium. Immunohistochemically (IHC), the lesion was positive for CD34, smooth muscle actin (SMA), type I and IV collagen, vimentin, and laminin, but it was negative for CD105. Local excision was the treatment of choice. No recurrence was observed during a 1-year and 6-month follow-up period, respectively. The clinical, histological, and immunohistochemical characteristics are discussed.
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Affiliation(s)
- Andresa Borges Soares
- Department of Oral Pathology, São Leopoldo Mandic Research Center, Sao Paulo, Brazil.
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27
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Costa AF, Demasi APD, Bonfitto VLL, Bonfitto JFL, Furuse C, Araújo VC, Metze K, Altemani A. Angiogenesis in salivary carcinomas with and without myoepithelial differentiation. Virchows Arch 2008; 453:359-67. [PMID: 18795324 DOI: 10.1007/s00428-008-0664-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 08/18/2008] [Accepted: 08/20/2008] [Indexed: 01/05/2023]
Abstract
To investigate whether salivary carcinomas with and without myoepithelial differentiation could present differences regarding degree of angiogenesis, we compared tumor vascularization between adenoid cystic (31 cases) and epithelial-myoepithelial carcinomas (14) versus mucoepidermoid (37) carcinoma. The expression of peroxiredoxin I was also studied to verify the potential relationship between cellular metabolism and microvascular density. Microvascular density for CD34 and CD105 were significantly lower in carcinomas with myoepithelial differentiation. However, no correlation was found between degree of angiogenesis and amounts of myoepithelial cells. High-grade peroxiredoxin I expression was found in 73.7% of mucoepidermoid carcinomas, whereas 85.1% of carcinomas with myoepithelial differentiation presented low-grade expression. In conclusion, carcinomas with myoepithelial differentiation, regardless of the amounts of myoepithelial cells, are associated to a significantly lower vascular density. The reasons for this lower angiogenic activity remain to be determined but could be related to metabolic characteristics of the cancer cells.
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Affiliation(s)
- A F Costa
- Department of Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
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