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Piwowarczyk K, Bartkowiak E, Kosikowski P, Chou JTT, Wierzbicka M. Salivary Gland Pleomorphic Adenomas Presenting With Extremely Varied Clinical Courses. A Single Institution Case-Control Study. Front Oncol 2021; 10:600707. [PMID: 33489904 PMCID: PMC7820779 DOI: 10.3389/fonc.2020.600707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 11/23/2020] [Indexed: 12/28/2022] Open
Abstract
Objective Pleomorphic adenomas (PAs) with divergent clinical behavior, differing from the vast majority of PAs, were distinguished. “Fast” PAs are characterized by an unexpectedly short medical history and relatively rapid growth. The reference group consisted of “slow” PAs with very stable biology and long-term progression. We divide the PA group as a whole into three subsets: “fast,” “normal,” and “slow” tumors. Our goal is a multifactorial analysis of the “fast” and “slow” PA subgroups. Methods Consecutive surgeries in a tertiary referral center, the Department of Otolaryngology and Laryngological Surgery, Poznan University of Medical Sciences, Poland, were carried out between 2002 and 2011. Out of 1,154 parotid tumors, 636 (55.1%) were PAs. The data were collected prospectively in collaboration with the Polish National Registry of Benign Salivary Gland Tumors. The main outcome measure was the recurrence rate in “fast” and “slow” PA subgroups. All surgical qualifications and surgeries were performed by two experienced surgeons. Results Slow PAs, compared to fast PAs, presented in older patients (53.25 ± 15.29 versus 47.92 ± 13.44 years). Multifactor logistic regression analysis with recurrence (yes/no) as the outcome variable, fast/slow as the predictor variable and age, gender, margin, FN status as covariates showed that fast PAs were significantly predicting recurrence vs. slow PAs (p = 0.035). Fast PAs were increasing the risk of PAs 10-fold vs. slow PAs, exp β = 10.20, CI95 [1.66; 197.87]. The variables impacting relapse were recent accelerated growth of the tumor OR = 3.35 (SE = 0.56), p = 0.030, positive margins OR = 7.18 (SE = 0.57), p < 0.001, incomplete or bare capsule OR = 9.91 (SE = 0.53), p = 0.001 and location III OR = 3.12 (SE = 0.53), p = 0.033. In the multivariate model only positive margin was selected as the best predictor of relapse, OR = 5.01 (SE = 0.60), p = 0.007. Conclusions The simple clinical aspect of slow or fast PA progression is of great practical importance and can constitute a surrogate of the final histopathological information that is derived from the surgical specimen. The slow or fast nature of the PA to some extent indicates prognostic features such as recurrence risk. This finding requires correlation with histological and molecular features in further stages of research.
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Affiliation(s)
- Krzysztof Piwowarczyk
- Department of Otolaryngology and Laryngological Oncology, Poznan University of Medical Sciences, Poznan, Poland
| | - Ewelina Bartkowiak
- Department of Otolaryngology and Laryngological Oncology, Poznan University of Medical Sciences, Poznan, Poland
| | - Paweł Kosikowski
- Department of Clinical Pathology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jadzia Tin-Tsen Chou
- Department of Otolaryngology and Laryngological Oncology, Poznan University of Medical Sciences, Poznan, Poland
| | - Małgorzata Wierzbicka
- Department of Otolaryngology and Laryngological Oncology, Poznan University of Medical Sciences, Poznan, Poland
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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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Analyses of VEGFC/VEGF-D expressions, density and endothelial lymphatic proliferation in salivary gland neoplasms. Exp Mol Pathol 2020; 113:104385. [PMID: 32004508 DOI: 10.1016/j.yexmp.2020.104385] [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: 11/01/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The aim of this study was to assess vascular endothelial growth factor C (VEGF-C) and VEGF-D expressions, tumor lymphatic density (D2-40) and endothelial lymphatic proliferation (D2-40/Ki-67 double labeling) in a series of salivary gland neoplasm cases. MATERIALS AND METHODS Twenty pleomorphic adenomas (PA), 20 adenoid cystic carcinomas (ACC) and 20 mucoepidermoid carcinomas (MEC) were assessed, as well as 10 normal minor salivary gland (SG) tissues for comparison. RESULTS All cases presented positive VEGF-C expression in the peritumoral and intratumoral regions, and no differences in immunoexpression were detected between groups. However, the ACC group presented a significant difference in VEGF-C immunoexpression according to the predominant histological pattern. Most cases presented poor VEGF-D labeling in the peritumoral and intratumoral regions. Concerning peritumoral, intratumoral and total lymphatic endothelial density, the assessed groups revealed an increasing gradient, with lower values for PA, followed by MEC and ACC. CONCLUSION No correlation was detected between VEGF-C and VEGF-D immunoexpression in relation to lymphatic tumor density and endothelial lymphatic proliferation. Western blotting (WB) revealed no difference between VEGF-C and VEGF-D expression among the lesions, corroborating the immunohistochemistry findings.
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Koochek Dezfuli M, Seyedmajidi M, Nafarzadeh S, Yazdani F, Bijani A. Angiogenesis and Lymphangiogenesis in Salivary Gland Adenoid Cystic Carcinoma and Mucoepidermoid Carcinoma. Asian Pac J Cancer Prev 2019; 20:3547-3553. [PMID: 31870093 PMCID: PMC7173365 DOI: 10.31557/apjcp.2019.20.12.3547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/25/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND AND PURPOSE This study aimed to investigate the immunohistochemical expression of CD31 and podoplanin in order to examine angiogenesis and lymphangiogenesis, respectively in common malignant tumors of salivary glands. MATERIALS AND METHODS Forty formalin-fixed, paraffinated blocks (20 adenoid cystic carcinoma and 20 mucoepidermoid carcinoma blocks) were selected from the medical archives of Amir A'lam Hospital of Tehran, Iran. Sections from the blocks were stained by CD31 and D2-40 markers via immunohistochemistry. Clinical and demographic information was extracted from the patients' records. FINDINGS There was a significant difference between tumors in terms of intratumoral microvessel density (MVD) (P< 0.001), total MVD (P< 0.001), and intratumoral lymphatic vessel density (LVD) (P= 0.011). In mucoepidermoid carcinoma, intratumoral MVD and LVD were greater than peritumoral MVD and LVD (P= 0.001 and P< 0.001, respectively). In mucoepidermoid carcinoma, there was no relationship between histological grade with MVD (total, intratumoral or peritumoral) or LVD (total, intratumoral or peritumoral) (P> 0.05). A similar finding was reported with respect to the histopathological grade of adenoid cystic carcinoma (P> 0.05). CONCLUSION The higher level of angiogenesis and lymphangiogenesis in mucoepidermoid carcinoma, specifically at the center of tumor, compared to adenoid cystic carcinoma, may be attributed to differences in the clinical behaviors and metastasis of tumors. Moreover, considering the high LVD at the center of tumor in mucoepidermoid carcinoma and infrequency of metastasis to regional lymph nodes in adenoid cystic carcinoma, it can play a significant role in metastasis to regional lymph nodes.
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Affiliation(s)
- Mohammad Koochek Dezfuli
- Department of Oral and Maxillofacial Pathology, Mazandaran University of Medical Sciences, Sari,
| | | | - Shima Nafarzadeh
- Oral health Research Center, Health Research Institute, Dental Faculty,
| | - Farzad Yazdani
- Non-Communicable Pediatrics’ Disease Research Center, Institute of Health, Babol University of Medical Sciences, Babol,
| | - Ali Bijani
- Department of Pathology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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de Souza AA, Altemani A, de Araujo NS, Texeira LN, de Araújo VC, Soares AB. Estrogen Receptor, Progesterone Receptor, and HER-2 Expression in Recurrent Pleomorphic Adenoma. CLINICAL PATHOLOGY 2019; 12:2632010X19873384. [PMID: 31598607 PMCID: PMC6764050 DOI: 10.1177/2632010x19873384] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/10/2019] [Indexed: 11/15/2022]
Abstract
Pleomorphic adenoma (PA) is the most common salivary gland neoplasm and, although
mostly benign, recurrences, being called recurrent pleomorphic adenoma (RPA) and
malignant transformation to carcinoma ex pleomorphic adenoma (CXPA), do occur.
Recently, attention has been focused on molecular targeted cancer therapy in
various tumors, including salivary gland tumors. The aim of this study was to
investigate the role of estrogen receptor (ER), progesterone receptor (PR), and
human epidermal growth factor receptor-2 (HER-2) in PA, RPA, and CXPA. In total,
20 cases of PA, 18 of RPA, and 7 cases of CXPA were immunohistochemically
studied for ER, PR, and HER-2. For evaluation of ER and PR, only nuclear
expression and greater than 10% positive cells were regarded as cutoff criteria.
HER-2 was evaluated semiquantitatively and graded from 0 to 3+. HER-2
amplification was assessed by chromogenic in situ hybridization (CISH). Tumors
were negative for ER, PR, and HER-2 in all cases of PA and RPA. A case of CXPA
showed moderate and complete membranous staining, and 6 cases were negative.
HER-2 amplification was not observed in any case. In conclusion, the lack of ER,
PR, and HER-2 expression in PA, RPA, and CXPA suggests that these proteins are
not involved in progression, recurrence, or malignant transformation of PA.
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Affiliation(s)
- Ana Amélia de Souza
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | - Albina Altemani
- Department of Pathology, School of Medicine, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Ney Soares de Araujo
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | - Lucas Novaes Texeira
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | | | - Andresa Borges Soares
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
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Badoual C. [ENT benign lesions and pseudo-tumors: Case No. 7]. Ann Pathol 2018; 38:293-298. [PMID: 30220544 DOI: 10.1016/j.annpat.2018.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2018] [Indexed: 11/26/2022]
Affiliation(s)
- Cécile Badoual
- Service d'anatomo-pathologie, hôpital européen Georges-Pompidou, université Paris Descartes, AP-HP, 75015 Paris, France.
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Comparison of lymphatic vessel density and expression of VEGF-C and VEGF-D lymphangiogenic factors in Warthin's tumours and oncocytic adenomas. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2018; 162:47-53. [DOI: 10.5507/bp.2017.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 10/25/2017] [Indexed: 11/23/2022] Open
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8
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Su C, Han Y, Zhang H, Li Y, Yi L, Wang X, Zhou S, Yu D, Song X, Xiao N, Cao X, Liu Z. CiRS-7 targeting miR-7 modulates the progression of non-small cell lung cancer in a manner dependent on NF-κB signalling. J Cell Mol Med 2018. [PMID: 29532994 PMCID: PMC5980210 DOI: 10.1111/jcmm.13587] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to figure out the effect of ciRS‐7/miR‐7/NF‐κB axis on the development of non‐small cell lung cancer (NSCLC). In response, the expressions of ciRS‐7, miR‐7 and NF‐κB subunit (ie RELA) within NSCLC tissues and cell lines were determined with real‐time polymerase chain reaction (RT‐PCR) and Western blot. Moreover, the NSCLC cells were transfected with pcDNA3‐ciRS‐7‐ir, pcDNA3‐ciRS‐7, miR‐NC and miR‐7 mimic. Furthermore, the targeted relationships between ciRS‐7 and miR‐7, as well as between miR‐7 and RELA, were confirmed by luciferase reporter assay. The proliferation, migration and apoptosis of NSCLC cells were, successively, measured using CCK‐8 assay, wound‐healing assay and flow cytometry test. Consequently, ciRS‐7, miR‐7, histopathological grade, lymph node metastasis and histopathological stage could independently predict the prognosis of patients with NSCLC (all P < .05). Moreover, remarkably up‐regulated ciRS‐7 and RELA expressions, as along with down‐regulated miR‐7 expressions, were found within NSCLC tissues and cells in comparison with normal ones (P < .05). Besides, overexpressed ciRS‐7 and underexpressed miR‐7 were correlated with increased proliferation, migration and invasion, yet reduced apoptosis rate of NSCLC cells (P < .05). More than that, ciRS‐7 specifically targeted miR‐7 to reduce its expressions (P < .05). Ultimately, the NSCLC cells within miR‐7 + RELA group were observed with superior proliferative, migratory and invasive capabilities than those within miR‐7 group (P < .05), and RELA expression was also significantly modified by both ciRS‐7 and miR‐7 (P < .05). In conclusion, the ciRS‐7/miR‐7/NF‐kB axis could exert pronounced impacts on the proliferation, migration, invasion and apoptosis of NSCLC cells.
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Affiliation(s)
- Chongyu Su
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Yi Han
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Hongtao Zhang
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University and Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Yunsong Li
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Ling Yi
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University and Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Xiaojue Wang
- Department of Central Laboratory, Beijing Chest Hospital, Capital Medical University and Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Shijie Zhou
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Daping Yu
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xiaoyun Song
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Ning Xiao
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xiaoqing Cao
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Zhidong Liu
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing, China
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9
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Dulguerov P, Todic J, Pusztaszeri M, Alotaibi NH. Why Do Parotid Pleomorphic Adenomas Recur? A Systematic Review of Pathological and Surgical Variables. Front Surg 2017; 4:26. [PMID: 28555187 PMCID: PMC5430411 DOI: 10.3389/fsurg.2017.00026] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 04/19/2017] [Indexed: 01/24/2023] Open
Abstract
Background The recurrence of pleomorphic adenoma (PA) has been extensively debated, mostly in relation to the extent of parotidectomy. Methods A systematic review was undertaken to clarify the surgical and pathological variables related to PA recurrence. Inclusion criteria were as follows: English literature, and prospective or retrospective studies. Exclusion criteria were as follows: single case reports, reviews, and lack of PA recurrence data. Results Pathology-related variables associated with recurrence include the histological subtype, the thickness and incompleteness of the tumor capsule, pseudopodia, and satellite nodules. Surgery-related variables associated with recurrence are the presence of intact margins and tumor puncture or spillage. Other factors are the size of the tumor and the age of patient. Myxoid subtypes of PA tend to have incomplete and thinner capsules and to recur more frequently. Surgical variables related to recurrence include positive margins and tumor spillage. Conclusion Myxoid and/or large PA, especially in young patients, should be approached more cautiously to avoid recurrences.
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Affiliation(s)
- Pavel Dulguerov
- Department of Otorhinolaryngology - Head and Neck Surgery, Geneva University Hospital, Geneva, Switzerland
| | - Jelena Todic
- Department of Otorhinolaryngology - Head and Neck Surgery, Geneva University Hospital, Geneva, Switzerland
| | - Marc Pusztaszeri
- Department of Pathology, Geneva University Hospital, Geneva, Switzerland
| | - Naif H Alotaibi
- Department of Otorhinolaryngology - Head and Neck Surgery, Geneva University Hospital, Geneva, Switzerland
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Differing Lymphatic Vessels Density in Salivary Adenoid Cystic Carcinoma and Pleomorphic Adenoma. Pathol Oncol Res 2016; 23:545-550. [DOI: 10.1007/s12253-016-0147-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 11/03/2016] [Indexed: 10/20/2022]
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11
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de Brito BS, Gaspar NG, Egal ESA, Sanchez-Romero C, Martins AS, Tincani ÁJ, de Oliveira Gondak R, de Almeida OP, Kowalski LP, Altemani A, Mariano FV. PLAG1 expression is maintained in recurrent pleomorphic adenoma. Virchows Arch 2016; 469:477-81. [PMID: 27381214 DOI: 10.1007/s00428-016-1980-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 05/25/2016] [Accepted: 06/27/2016] [Indexed: 11/26/2022]
Abstract
The proto-oncogene (pleomorphic adenoma gene 1 (PLAG1)) is immunohistochemically overexpressed in pleomorphic adenoma (PA). Its expression in recurrent pleomorphic adenoma (RPA), however, has not been investigated. Since complex mechanisms are involved in tumor recurrence, the aim of this study was to investigate whether PLAG1 overexpression occurs in RPA. We studied PLAG1 protein expression in 40 PAs and 36 RPAs by immunohistochemistry. Cases with immunopositive cells were classified into two categories, between 10 and 50 % and >50 %. In both groups, PLAG1 expression was observed in both epithelial and myoepithelial cells. Of PAs, 37 cases (93 %) were positive, while this was the case in 34 RPA cases (94 %). Our findings suggest that in addition to morphological similarity, PA and RPA express PLAG1, which might play a role in tumor recurrence. Furthermore, as for PA, expression of PLAG1 can be considered a valuable diagnostic marker for RPA.
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Affiliation(s)
- Beatriz Samara de Brito
- Pathology Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Natália Giovanelli Gaspar
- Pathology Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Erika Said Abu Egal
- Pathology Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Celeste Sanchez-Romero
- Oral Pathology Department, Piracicaba Dental School, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Antonio Santos Martins
- Head and Neck Surgery Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Álfio José Tincani
- Head and Neck Surgery Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - Oslei Paes de Almeida
- Oral Pathology Department, Piracicaba Dental School, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Luiz Paulo Kowalski
- Head and Neck Surgery Department, AC Camargo Cancer Center, São Paulo, SP, Brazil
| | - Albina Altemani
- Pathology Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Fernanda Viviane Mariano
- Pathology Department, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil.
- Departamento de Anatomia Patológica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Av. Tessália Vieira de Camargo, 126 - Barão Geraldo, Cidade Universitária, Campinas, SP, 13083-887, Brazil.
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Correlation of intratumoral lymphatic microvessel density, vascular endothelial growth factor C and cell proliferation in salivary gland tumors. Med Mol Morphol 2016; 50:17-24. [DOI: 10.1007/s00795-016-0142-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 05/10/2016] [Indexed: 12/11/2022]
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13
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Stárek I, Salzman R, Kučerová L, Skálová A, Hauer L. Expression of VEGF-C/-D and lymphangiogenesis in salivary adenoid cystic carcinoma. Pathol Res Pract 2015; 211:759-65. [DOI: 10.1016/j.prp.2015.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 05/08/2015] [Accepted: 07/03/2015] [Indexed: 12/26/2022]
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14
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de Souza AA, Altemani A, Passador-Santos F, Turssi CP, de Araujo NS, de Araújo VC, Soares AB. Dysregulation of the Rb pathway in recurrent pleomorphic adenoma of the salivary glands. Virchows Arch 2015; 467:295-301. [PMID: 26155914 DOI: 10.1007/s00428-015-1804-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 05/05/2015] [Accepted: 06/24/2015] [Indexed: 11/28/2022]
Abstract
Pleomorphic adenoma (PA) is the most common salivary gland neoplasm, and while mostly benign, recurrences (RPA) and malignant transformation to carcinoma ex-PA (CXPA) do occur. Cell cycle proteins important in its tumorigenesis have been studied as markers for PA with a high risk of RPA or CXPA. The aim of the present study was to investigate cell cycle markers p-16, cyclin D1, CDK4, E2F, and retinoblastoma (Rb) in this context. Expression of p16, cyclin D1, E2F, CDK4, and Rb was studied by immunohistochemistry in 24 cases of PA, 21 of RPA, and 2 of CXPA. The presence of HPV was assessed by in situ hybridization. Immunostaining for p16 and cyclin D1 was negative or weakly positive in most cases of PA while strongly positive in the majority of RPA and both CXPA cases. Staining for Rb and CDK4 was either negative or weakly positive in PA, RPA, and CXPA. Expression of E2F was stronger in RPA and CXPA than in PA. Nuclear reactivity for HPV was not observed in any case. In conclusion, the strong staining for p16, cyclinD1, and E2F in RPA and CXPA, while weak or negative in PA, suggests that these proteins might be involved in recurrence and malignant transformation of PA.
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Affiliation(s)
- Ana Amélia de Souza
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Rua José Rocha Junqueira13 Ponte Preta, Campinas, SP, 13045-755, Brazil
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