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Iwaki S, Kawakita D, Nagao T, Tada Y, Honma Y, Ando M, Matoba T, Minohara K, Nakano S, Murase T, Iwasaki S, Inagaki H. Comprehensive genomic profiling of salivary gland carcinoma: Analysis of the Center for Cancer Genomics and Advanced Therapeutics database in Japan. Int J Cancer 2024; 155:871-882. [PMID: 38686510 DOI: 10.1002/ijc.34972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 05/02/2024]
Abstract
Comprehensive information on genetic alterations in salivary gland cancer (SGC) is limited. This study aimed to elucidate the genetic and clinical characteristics of patients with SGC using the Center for Cancer Genomics and Advanced Therapeutics (C-CAT) database, a Japanese national genomic database. We analyzed data of 776 patients with SGC registered in the C-CAT database between June 1, 2019, and June 30, 2023. Adenoid cystic carcinoma was the most common histologic type, followed by salivary duct carcinoma (SDC) and adenocarcinoma not otherwise specified. Genetic data of 681 patients receiving FoundationOne® CDx were analyzed. We identified specific features of the combination of TP53 and CDKN2A alterations among the histological types. Specific LYN amplification was mainly detected in carcinoma ex pleomorphic adenoma and myoepithelial carcinoma. For SDC, the frequency of ERBB2 and BRAF alterations were higher in cases with metastatic lesions than in those with primary lesions. Although 28.6% patients were offered recommended treatment options, only 6.8% received the recommended treatments. This study highlights the differences in genetic alterations among the histological types of SGC, with comprehensive genomic profiling tests revealing lower drug accessibility. These findings could contribute to the development of personalized treatment for patients with SGC.
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Affiliation(s)
- Sho Iwaki
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Department of Pathology and Molecular Diagnosis, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Daisuke Kawakita
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yuichiro Tada
- Department of Head and Neck Oncology and Surgery, Mita Hospital, International University of Health and Welfare, Tokyo, Japan
| | - Yoshitaka Honma
- Department of Head and Neck, Esophageal Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Mizuo Ando
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takuma Matoba
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kiyoshi Minohara
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Satsuki Nakano
- Department of Pathology and Molecular Diagnosis, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takayuki Murase
- Department of Pathology and Molecular Diagnosis, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shinichi Iwasaki
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnosis, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Wang X, Liu L, He H, Li B. MAML2 gene rearrangement occurs in all Warthin-like mucoepidermoid carcinoma: A reappraisal in a series of 29 cases. Heliyon 2024; 10:e24873. [PMID: 38304779 PMCID: PMC10831721 DOI: 10.1016/j.heliyon.2024.e24873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 02/03/2024] Open
Abstract
Background Warthin-like Mucoepidermoid carcinoma (MEC) is a new and rare morphological variant of MEC, with only a few case reports in the literature. The clinicopathological, molecular features and bio-behaviors of Warthin-like MEC has not been studied extensively. We reappraisal all Warthin-like MEC patients diagnosed and treated at our hospital. Methods Patient characteristics including clinicopathological features, genetic aberrations, treatment, and prognostic information were assessed and evaluated. Results Twenty-nine Warthin-like MEC patients were identified, 19 patients were female (65.5 %), and 10 were male (34.5 %). The patients' age varied widely from 8 to 68 years (mean 42.3 years). Genetic aberrations of MAML2 rearrangement were detected in all Warthin-like MEC patients, which suggesting this genetic event is the unique feature of Warthin-like MEC. Twenty-five patients (86.2 %) were assessed as having a low-stage disease (I/II), and four (13.8 %) as having high-clinical stage disease (III/IV). More than half of the patients (16/29) underwent only partial sialoadenectomy; 2 patients underwent extended sialoadenectomy, and 11 patients underwent extended sialoadenectomy with cervical lymph node dissection. After a median follow-up time of 73 months (5-128 months), Twenty-eight patients were alive without recurrence at the end of the follow-up period, one patient died 1 year after surgery due to lung metastasis. Conclusion Our data suggested that most Warthin-like MEC exhibited mild clinicopathological course and less aggressive bio-behavior, and an aggressive bio-behavior seemed to be very rare. In addition, in the salivary gland, MAML2 rearrangement seems to be a unique molecular feature of salivary Warthin-like MEC.
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Affiliation(s)
- Xi Wang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences(2019RU034), China
| | - Lingchao Liu
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, Beijing, China
| | - Huiying He
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, Beijing, China
| | - Binbin Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences(2019RU034), China
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Mura MD, Clement C, Foschini MP, Vander Borght S, Waumans L, Van Eyken P, Hauben E, Keupers M, Weltens C, Smeets A, Nevelsteen I, Floris G. High-grade HER2-positive mucoepidermoid carcinoma of the breast: a case report and review of the literature. J Med Case Rep 2023; 17:527. [PMID: 38062474 PMCID: PMC10704702 DOI: 10.1186/s13256-023-04233-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 10/29/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Mucoepidermoid carcinoma of the breast is a rare special type of salivary gland-like tumor of the breast, usually displaying triple-negative phenotype. To date, only 64 cases have been reported in the English literature. Herein, we report the first case of mucoepidermoid carcinoma of the breast with human epidermal growth factor receptor 2 gene amplification. CASE PRESENTATION A 58-year-old Caucasian woman treated with breast-conserving surgery, radiotherapy, and chemotherapy for an invasive breast carcinoma of no special type, relapsed 20 years later in the ipsilateral left breast. Histological examination of the core needle biopsy of the relapse deferred to the surgical specimen for the definitive diagnosis, because of the broad differential diagnosis. On the resected specimen we observed the presence of a poorly differentiated carcinoma with mucoepidermoid carcinoma of the breast typical features consisting of epidermoid, intermediate and mucinous cells lacking true keratinization, in keeping with the latest World Health Organization diagnostic criteria. The mucoepidermoid carcinoma of the breast was weakly estrogen receptor and androgen receptor positive and progesterone receptor negative, but exceptionally showed human epidermal growth factor receptor 2 gene amplification. Mastermind-like transcriptional coactivator 2 gene translocations were not detected by fluorescent in situ hybridization. The patient received adjuvant chemotherapy with anti-human epidermal growth factor receptor 2 therapy but no endocrine therapy. After 61 months of follow-up, no signs of local or distant recurrence were observed. CONCLUSIONS Mucoepidermoid carcinoma of the breast is a very rare entity. Despite being most frequently triple negative, the standard evaluation of receptor status is mandatory, as well as strict application of World Health Organization diagnostic criteria for correct patient management.
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Affiliation(s)
- Mario Della Mura
- Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Pathology, KU Leuven-University of Leuven, University Hospitals Leuven, Herestraat 49, Campus Gasthuisberg, 3000, Louvain, Belgium
- School of Medicine and Surgery, Magna Græcia University of Catanzaro, Viale Europa, Germaneto University Campus, 88100, Catanzaro, Italy
| | - Céline Clement
- Department of Oncology, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Surgical Oncology, KU Leuven-University of Leuven, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Maria P Foschini
- Department of Biomedical and Neuromotor Sciences, Unit of Anatomic Pathology, University of Bologna, Bellaria Hospital, 40139, Bologna, Italy
| | - Sara Vander Borght
- Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Pathology, KU Leuven-University of Leuven, University Hospitals Leuven, Herestraat 49, Campus Gasthuisberg, 3000, Louvain, Belgium
| | - Lise Waumans
- Department of Pathology, Regional Hospital East Limburg (ZOL), 3600, Genk, Belgium
| | - Peter Van Eyken
- Department of Pathology, Regional Hospital East Limburg (ZOL), 3600, Genk, Belgium
| | - Esther Hauben
- Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Pathology, KU Leuven-University of Leuven, University Hospitals Leuven, Herestraat 49, Campus Gasthuisberg, 3000, Louvain, Belgium
| | - Machteld Keupers
- Department of Radiology, KU Leuven-University of Leuven, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Caroline Weltens
- Department of Oncology, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Radiotherapy Oncology, KU Leuven-University of Leuven, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Ann Smeets
- Department of Oncology, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Surgical Oncology, KU Leuven-University of Leuven, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Ines Nevelsteen
- Department of Oncology, KU Leuven-University of Leuven, 3000, Louvain, Belgium
- Department of Surgical Oncology, KU Leuven-University of Leuven, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Giuseppe Floris
- Department of Imaging and Pathology, Laboratory of Translational Cell & Tissue Research, KU Leuven-University of Leuven, 3000, Louvain, Belgium.
- Department of Pathology, KU Leuven-University of Leuven, University Hospitals Leuven, Herestraat 49, Campus Gasthuisberg, 3000, Louvain, Belgium.
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Keerthika R, Devi A, Kamboj M, Sivakumar N, Vijayakumar G, Narwal A, Girdhar A. Diagnostic Reliability of CRTC1/3::MAML2 Gene Fusion Transcripts in Discriminating Histologically Similar Intraosseous Mucoepidermoid Carcinoma from Glandular Odontogenic Cyst: A Systematic Review and Meta-analysis. Head Neck Pathol 2023; 17:233-245. [PMID: 36357765 PMCID: PMC10063707 DOI: 10.1007/s12105-022-01494-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/09/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Intraosseous mucoepidermoid carcinoma (IMEC) and Glandular odontogenic cyst (GOC) are those two pathological entities causing diagnostic dilemma due to the histopathological similarity. An accurate distinction between the two entities is difficult as both presents with a common radiological and histological similarities. The aim of our systematic review was to establish the diagnostic reliability of CRTC1/3::MAML2 gene fusion for the distinction between IMEC and GOC. METHODS A complete electronic literature search was made in MEDLINE by PubMed, Google Scholar, and EMBASE databases. Articles with keywords using molecular genetic findings of CRTC1/3::MAML2 gene fusion transcripts, IMEC and GOC were assessed and included for the systematic review. RESULTS Twelve subgroups having both qualitative and quantitative analysis revealed CRTC1/3::MAML2 sensitivity of 100% and specificity of 70.59% in differentiating GOC and IMEC. Fixed-effects model confirmed translocation-negative cases to have a decreased risk of association with IMEC (combined odds ratio 8.770, 95% confidence interval - 2.45 to 31.45, p < 0.002). CONCLUSIONS The current evidence supports that in all cases with positive gene fusion transcript of the CRTC1/3::MAML2 was specific for IMEC and was significantly differentiating it from GOC. Whereas cases of IMEC with negative gene fusion transcript pose diagnostic difficulty in differentiating from a GOC which is negative for CRTC1/3::MAML2 expression.
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Affiliation(s)
- R. Keerthika
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
| | - Anju Devi
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
| | - Mala Kamboj
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
| | - N. Sivakumar
- Department of Oral and Maxillofacial Pathology & Microbiology, King George’s Medical University, Lucknow, Uttar Pradesh 226003 India
| | - Gopikrishnan Vijayakumar
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
| | - Anjali Narwal
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
| | - Akhil Girdhar
- Department of Oral Maxillofacial Pathology and Microbiology, Post Graduate Institute of Dental Sciences (PGIDS), Rohtak, Haryana 124001 India
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Soloperto D, Gazzini S, Cerullo R. Molecular Mechanisms of Carcinogenesis in Pediatric Airways Tumors. Int J Mol Sci 2023; 24:ijms24032195. [PMID: 36768522 PMCID: PMC9916405 DOI: 10.3390/ijms24032195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Primary tumors of the airways in the pediatric population are very rare entities. For this reason, little is known about the pathogenesis of these neoplasms. Understanding the biology has different practical implications: for example, it could help in the differential diagnosis, have a prognostic significance, or may lead to the development of a targeted therapy. The aim of this article is to present the current knowledge about pediatric airways tumors, focusing on the molecular mechanisms that cause the onset and progression of these neoplasms. After a brief introduction of epidemiology and clinical presentation, the tumorigenesis of the most frequent pediatric airways tumors will be described: Juvenile-onset recurrent respiratory papillomatosis (JORRP), Subglottic Hemangiona (SH), Rhabdomyosarcoma (RMS), and Mucoepidermoid carcinoma (MEC).
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Sapuppo E, Brunetti O, Tessitore D, Brandi G, Di Giovanni N, Fadda G, Luchini C, Martini M, Quaresmini D, Russo A, Santarpia M, Scarpa A, Scartozzi M, Tuccari G, Franchina T, Silvestris N. Rare histotypes of epithelial biliary tract tumors: A literature review. Crit Rev Oncol Hematol 2023; 181:103892. [PMID: 36481306 DOI: 10.1016/j.critrevonc.2022.103892] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Adenocarcinoma represents the most frequent biliary tract cancer. However, other rare histotypes can be found in the biliary tract, such as cholangiolocellular carcinoma, cholangiocarcinoma with ductal plate malformation pattern, adenosquamous carcinoma, mucinous carcinoma, signet ring cell carcinoma, clear cell carcinoma, mucoepidermoid carcinoma, lymphoepithelioma-like carcinoma, and sarcomatous cholangiocarcinoma. These cancer types account for less than 10 % of all the already rare biliary tract tumors. Yet, they represent a relevant issue in everyday clinical practice, given the lack of therapeutic recommendations and the overall scarcity of data, mainly deriving from isolated small center-specific cohorts of patients.The shifts of such histotypes from the most common ones reflect genetic and molecular differences, determine changes in clinical aggressiveness, and suggest a possible variability in sensitivity to the standard treatments of biliary adenocarcinomas. The consistency and degree of these variables are still to be solidly demonstrated and investigated. Therefore, this paper aims to review the current literature concerning very infrequent and rare epithelial biliary tract cancers, focusing our attention on the clinical, molecular, and immunohistochemical features of these tumors.
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Affiliation(s)
- Elena Sapuppo
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Oronzo Brunetti
- Medical Oncology Unit-IRCCS Istituto Tumori "Giovanni Paolo II" of Bari, 70124 Bari, Italy
| | - Dalila Tessitore
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Giovanni Brandi
- Haematological and Oncological Institute, Department of Experimental, Diagnostic and Specialty Medicine, St. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Nicola Di Giovanni
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Guido Fadda
- Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", Section of Pathology, University of Messina, Messina, Italy
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Verona, Italy; ARC-Net Research Center, University and Hospital Trust of Verona, Verona, Italy
| | - Maurizio Martini
- Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", Section of Pathology, University of Messina, Messina, Italy
| | - Davide Quaresmini
- Medical Oncology Unit-IRCCS Istituto Tumori "Giovanni Paolo II" of Bari, 70124 Bari, Italy
| | - Antonio Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Mariacarmela Santarpia
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Aldo Scarpa
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Verona, Italy; ARC-Net Research Center, University and Hospital Trust of Verona, Verona, Italy
| | - Mario Scartozzi
- Azienda Ospedaliera Universitaria (AOU) Cagliari, University Hospital and University of Cagliari, Cagliari, Italy
| | - Giovanni Tuccari
- Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", Section of Pathology, University of Messina, Messina, Italy
| | - Tindara Franchina
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy
| | - Nicola Silvestris
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Messina, Italy.
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Muacevic A, Adler JR, Balzer B. A Case of Digital Cutaneous Melanocytic Tumor With CRTC1::TRIM11 Fusion. Cureus 2022; 14:e33179. [PMID: 36726909 PMCID: PMC9886156 DOI: 10.7759/cureus.33179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2022] [Indexed: 01/02/2023] Open
Abstract
A cutaneous melanocytic tumor with CRTC1::TRIM11 fusion (CMTCT) was recently described as a novel superficial tumor with melanocytic differentiation and harboring a unique in-frame translocation, CRTC1::TRIM11. This emerging entity can occur at any age and is known to be a low-grade malignant neoplasm with limited follow-up data. There are no available guidelines for the management and treatment of this tumor. This neoplasm has been found in the extremities, head and neck, and trunk. Here, we present the first case occurring on acral digital skin. This case contributes to the growing knowledge surrounding this newly described entity.
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Arrojo ML, Oliveira KK, Bettim BB, Kowalski LP, Carraro DM, Meira ITJE, Torrezan GT, Lourenço SV, Coutinho-Camillo CM. Tight junction gene expression in salivary gland tumors. Pathol Res Pract 2022; 238:154113. [PMID: 36099718 DOI: 10.1016/j.prp.2022.154113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/18/2022]
Abstract
Salivary gland neoplasms comprise a heterogeneous group of lesions with multiple histological subtypes, each with distinct growth patterns, resulting in a spectrum of tumor-specific prognoses; pleomorphic adenoma (PA) and mucoepidermoid carcinoma (MEC) are the most common representatives of these neoplasms. Many studies have associated specific profiles of membrane and adhesion molecules in salivary gland tissues; these profiles appear to be relevant in tumor biology as well as be interpreted as fingerprints for tumor classification, diagnostic prognostic and therapeutic targets. One of these membrane molecule complexes are the tight junctions, composed by various proteins, in which claudins are protagonists. The aim of this study was to evaluate the expressions of genes that encode tight junction proteins (CLDN-1, -3, -4, -5, -7, and -11, occludin [OCLN], zonula occludens [TJP1, TJP2, and TJP3] and junctional adhesion molecule A [F11R]) in MEC and PA using real time RT-PCR. We observed high expression of CLDN-1 and -7 and low expression of CLDN-3, -11 and TJP2 in MEC compared to PA. PA samples demonstrated high OCLN expression when compared to MEC. CRTC1::MAML2 fusion was detected in 12 of 20 (60.0%) MEC samples and was associated with CLDN7 expression, while the absence of fusion was associated with high histological grade. Increased CLDN5 expression was associated with submandibular gland tumors. This study demonstrated differential expressions of genes encoding tight junction constituent proteins and their associations with tumor characteristics, suggesting their potential future role as diagnostic and prognostic markers.
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Affiliation(s)
- Maria Luiza Arrojo
- International Research Center, A.C.Camargo Cancer Center, São Paulo, Brazil
| | | | | | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Dirce Maria Carraro
- Clinical and Functional Genomics Group, International Research Center A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Isabella Tanus Job E Meira
- Clinical and Functional Genomics Group, International Research Center A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Giovana Tardin Torrezan
- Clinical and Functional Genomics Group, International Research Center A.C.Camargo Cancer Center, São Paulo, Brazil
| | - Silvia Vanessa Lourenço
- Department of General Pathology, Dental School, University of São Paulo, São Paulo, SP, Brazil
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Murase T, Nakano S, Sakane T, Domen H, Chiyo M, Nagasaka S, Tanaka M, Kawahara Y, Toishi M, Tanaka T, Nakamura S, Sawabata N, Okami J, Mukaida H, Tzankov A, Szolkowska M, Porubsky S, Marx A, Roden AC, Inagaki H. Thymic Mucoepidermoid Carcinoma: A Clinicopathologic and Molecular Study. Am J Surg Pathol 2022; 46:1160-1169. [PMID: 35319525 DOI: 10.1097/pas.0000000000001886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Thymic mucoepidermoid carcinoma (MEC) is a rare tumor, and its characteristics remain to be clarified. Here we investigated 20 cases of thymic MEC to systematically characterize its clinical, histopathologic, and molecular features. The median age of the patients was 56 years (range, 19 to 80 y), there was a slight male predilection (3:2), and 44% of the patients were asymptomatic at diagnosis. The median tumor size was 6.8 cm in diameter, 55% were pT1 tumors, and 50% were TNM stage I tumors. When 4 tumor grading systems for salivary MEC (Armed Forces Institutes of Pathology, Brandwein, modified Healey, and the Memorial Sloan-Kettering) were employed, low-grade, intermediate-grade, and high-grade tumors accounted for 35% to 70%, 5% to 25%, and 25% to 50%, respectively. Many histologic variants were noted, and 70% of the cases were classified as nonclassic variants. MAML2 rearrangement was detected in 56% of cases, and the fusion partner was CRTC1 in all cases. CRTC1-MAML2 fusion was associated with lower pT classification and lower TNM stage. The overall survival rate of all patients was 69% and 43% at 5 and 10 years, respectively. Worse overall survival was associated with higher pT stage, higher TNM stage, residual tumors, greater tumor size, high-grade tumor histology (Armed Forces Institutes of Pathology and Memorial Sloan-Kettering, but not the other 2), and with the absence of CRTC1-MAML2 fusion. Of note, none of the patients with CRTC1-MAML2 fusion-positive tumors died during the follow-up. In conclusion, the clinicopathologic and molecular findings of thymic MEC presented here are expected to contribute to the management of this rare tumor.
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Affiliation(s)
- Takayuki Murase
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University
| | - Satsuki Nakano
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University
| | - Tadashi Sakane
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University
| | - Hiromitsu Domen
- Depatment of Thoracic Surgery, NTT-East Sapporo Hospital, Sapporo
| | - Masako Chiyo
- Department of Thoracic Surgery, National Hospital Organization Chiba Medical Center, Chiba
| | - Satoshi Nagasaka
- Department of General Thoracic Surgery, National Center for Global Health and Medicine
| | - Michio Tanaka
- Department of Pathology, Tokyo Metropolitan Hiroo General Hospital
| | | | - Masayuki Toishi
- Department of Chest Surgery, Nagano Municipal Hospital, Nagano
| | - Takuji Tanaka
- Department of Diagnostic Pathology, Gifu Municipal Hospital, Gifu
| | - Shota Nakamura
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya
| | - Noriyoshi Sawabata
- Department of Thoracic and Cardiovascular Surgery, Nara Medical University, Nara
| | - Jiro Okami
- Department of General Thoracic Surgery, Osaka International Cancer Institute, Osaka
| | - Hidenori Mukaida
- Department of General Thoracic Surgery, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Alexandar Tzankov
- Department of Pathology, Institute of Medical Genetics and Pathology, University Hospital Basel, University Hospital Basel, Basel, Switzerland
| | - Malgorzata Szolkowska
- Department of Pathology, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Stefan Porubsky
- Department of Pathology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz
| | - Alexander Marx
- Department of Pathology, University Medical Centre Mannheim, Heidelberg University, Mannheim, Germany
| | - Anja C Roden
- Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, Rochester, MN
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University
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10
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Souza LL, Roza ALOC, Leite AA, Gallagher KPD, Mariz BALA, Santos MRG, Santos-Silva AR, Vargas PA. A PIGMENTED NODULE IN THE BUCCAL MUCOSA. Oral Surg Oral Med Oral Pathol Oral Radiol 2022; 135:465-469. [PMID: 36153301 DOI: 10.1016/j.oooo.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 11/28/2022]
Affiliation(s)
- L L Souza
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | | | - Amanda Almeida Leite
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | | | | | - Mariana Rates Gonzaga Santos
- Department of Immunology, Science Biological Institute, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, São Paulo, Brazil; Department of Oral Pathology and Oral Biology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
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11
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Lei R, Yang H. Warthin-like mucoepidermoid carcinoma of the parotid gland: a clinicopathological analysis of two cases. J Int Med Res 2022; 50:3000605221101329. [PMID: 35879827 PMCID: PMC9340346 DOI: 10.1177/03000605221101329] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Mucoepidermoid carcinoma (MEC) is the most common malignant tumour of the
salivary gland, primarily involving the parotid gland. Here, the cases of two
patients, aged 47 and 67 years, respectively, who underwent surgery for
pathologically confirmed Warthin-like MEC of the parotid gland between January
2019 and December 2019 in Anyang Tumour Hospital, are described. In each case,
the tumour consisted of epithelial and lymphoid cell components, covered with
two or more layers of epithelium, with visible scattered mucous cells, and
lymphoid stroma with a large number of lymphocytes and germinal centres formed.
Most importantly, the tumours lacked the well-organized, bilayered oncocytic
epithelial structure that is characteristic of Warthin’s tumour. Mastermind like
transcriptional coactivator 2 (MAML2) gene rearrangements were
identified in the tumour cells using break-apart fluorescence in situ
hybridization (FISH) probes, confirming the diagnosis of Warthin-like MEC.
Post-operatively, patients have remained disease free for 31 and 27 months,
respectively. Warthin-like MEC of the parotid gland is rare and is often
misdiagnosed as metaplastic Warthin’s tumour. Diagnosis depends mainly on the
unique clinicopathologic features together with FISH analyses.
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Affiliation(s)
- Ruixue Lei
- Department of Pathology, Anyang Tumour Hospital, The Affiliated Anyang Tumour Hospital of Henan University of Science and Technology, Anyang, Henan, China
| | - Haijun Yang
- Department of Pathology, Anyang Tumour Hospital, The Affiliated Anyang Tumour Hospital of Henan University of Science and Technology, Anyang, Henan, China
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12
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Taniuchi M, Kawata R, Terada T, Higashino M, Nishimura H, Kurisu Y, Kuwabara H, Hirose Y. Management and outcome of parotid mucoepidermoid carcinoma by histological grade: A 21‐year review. Laryngoscope Investig Otolaryngol 2022; 7:766-773. [PMID: 35734046 PMCID: PMC9194965 DOI: 10.1002/lio2.809] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/10/2022] [Accepted: 04/08/2022] [Indexed: 01/12/2023] Open
Abstract
Objective Mucoepidermoid carcinoma (MEC) is the most common malignancy of the parotid gland, but the outcome depends on the histological grade. Therefore, the aim of this study was to evaluate MEC on the basis of histological grade. Study Design Retrospective analysis. Methods We performed a retrospective analysis of data from patients whose initial treatment for MEC of the parotid gland was performed at our department between 1999 and 2021. We examined the association between the Armed Forces Institute of Pathology (AFIP) grade and outcome. Results The AFIP grades were as follows: low, 26 cases; intermediate, 9 cases; and high, 31 cases. About 50% of cases were correctly diagnosed as malignant, and both grade and histology were accurately determined by fine‐needle aspiration cytology in 20% of cases. The 5‐year disease‐free survival rate was 95.5% and 53.8% in the low‐/intermediate‐ and high‐grade cases, respectively. In the high‐grade group, cases with recurrence were found to have a higher rate of lymph nodes metastasis than cases without recurrence. Furthermore, in this high‐grade group, total sacrifice of the facial nerve did not reduce local recurrence. However, radical resection in the cases without tumor invasion to the nerve has decreased the local recurrence rate. The CRTC1‐MAML2 fusion gene was expressed in 42.3% of low‐/intermediate‐ and 14.3% of high‐grade cases. Conclusions The survival rate in MEC was quite different between the low‐/intermediate‐ and high‐grade cases. However, the rate of correct assessment of the grade by fine‐needle aspiration cytology was poor. In high‐grade cases, total sacrifice of the facial nerve may improve the rate of local recurrence in cases without invasion of the main trunk of the nerve. Expression of the CRTC1‐MAML2 fusion gene could be helpful in not only the assessment of grade but the prediction of recurrence. Level of Evidence 4
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Affiliation(s)
- Masataka Taniuchi
- Department of Otorhinolaryngology ‐ Head and Neck Surgery Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology ‐ Head and Neck Surgery Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Tetsuya Terada
- Department of Otorhinolaryngology ‐ Head and Neck Surgery Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Masaaki Higashino
- Department of Otorhinolaryngology ‐ Head and Neck Surgery Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Hiromi Nishimura
- Department of Otorhinolaryngology ‐ Head and Neck Surgery Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Yoshitaka Kurisu
- Department of Pathology Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Hiroko Kuwabara
- Department of Pathology Osaka Medical and Pharmaceutical University Takatsuki Japan
| | - Yoshinobu Hirose
- Department of Pathology Osaka Medical and Pharmaceutical University Takatsuki Japan
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13
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Kong M, Wang B, Wang X, Xu L. A Case Report of Mucoepidermoid Carcinoma With Extensive Keratinization in Parotid: Expanding the Morphologic Spectrum. Int J Surg Pathol 2021; 30:422-426. [PMID: 34894814 DOI: 10.1177/10668969211060485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mucoepidermoid carcinoma (MEC) is the most common malignant tumor of salivary glands in children and young adults. Typically, it is composed of squamoid, mucin-producing and intermediate-types cells. However, overt keratinization is rare. To the best of our knowledge, extensive keratinization or keratin pearls in MEC has never been reported. Keratinization or keratin pearls are regard "practically never seen in low-grade MEC". Herein, we report a case of a 34-year-old woman who presented with a tumor in right parotid gland for 2 months. Microscopically, the tumor was composed of extensive squamous cells with overt keratin pearls, intermediate cells and few scattered mucous cells. MAML2 gene break-apart and CRTC1-MAML2 gene fusion were detected by fluorescence in situ hybridization. This is the first report to describe a MEC case with extensive squamous metaplasia and overt keratin pearls formation, which expands the morphologic spectrum of MEC.
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Affiliation(s)
- Mei Kong
- The First Affiliated Hospital, School of Medicine, 71069Zhejiang University, Hangzhou, China
| | - Bo Wang
- The First Affiliated Hospital, School of Medicine, 71069Zhejiang University, Hangzhou, China
| | - Xiaoxi Wang
- The First Affiliated Hospital, School of Medicine, 71069Zhejiang University, Hangzhou, China
| | - Liming Xu
- The First Affiliated Hospital, School of Medicine, 71069Zhejiang University, Hangzhou, China
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14
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Parra O, Linos K. Cutaneous Melanocytic Tumor with CRTC1::TRIM11 Fusion: Review of the Literature of a Potentially Novel Entity. BIOLOGY 2021; 10:biology10121286. [PMID: 34943200 PMCID: PMC8698518 DOI: 10.3390/biology10121286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/18/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022]
Abstract
“Cutaneous melanocytic tumor with CRTC1::TRIM11 fusion” (CMTCT) is a recently described entity belonging to the family of superficial tumors displaying melanocytic differentiation. Thirteen cases have been reported so far, on the head and neck, extremities, and trunk of adults of all ages (12 cases) and one in an 11-year-old child. Histopathologically, it is a nodular or multilobulated tumor composed of spindle and epithelioid cells arranged in nests, fascicles, or bundles that are surrounded by thin collagenous septa. By immunohistochemistry, the tumor shows variable immunoreactivity for S100-protein, SOX10, and MITF, as well as specific melanocytic markers such as MelanA and HMB-45. The neoplasm’s biologic behavior remains uncertain since the reported cases are limited and the follow-up is short (median 12 months). However, local recurrence and synchronous distant metastasis after 13 years of initial resection has been described in one case. Herein, we present a comprehensive literature review of CMTCT hoping to raise awareness among the dermatopathologists of this potentially novel entity.
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Affiliation(s)
- Ourania Parra
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA;
| | - Konstantinos Linos
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA;
- Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
- Correspondence: ; Tel.: +1-603-650-7211
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15
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Nakano S, Okumura Y, Murase T, Nagao T, Kusafuka K, Urano M, Yamamoto H, Kano S, Tsukahara K, Okami K, Kawakita D, Nagao T, Hanai N, Iwai H, Kawata R, Tada Y, Nibu KI, Inagaki H. Salivary mucoepidermoid carcinoma: Histological variants, grading systems, CRTC1/3-MAML2 fusions, and clinicopathological features. Histopathology 2021; 80:729-735. [PMID: 34657306 DOI: 10.1111/his.14586] [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: 07/13/2021] [Revised: 09/25/2021] [Accepted: 10/15/2021] [Indexed: 11/29/2022]
Abstract
AIM To investigate the histological diversity of salivary mucoepidermoid carcinoma (MEC), its clinicopathological features, and its associations with CRTC1/3-MAML2 fusions. METHODS Salivary MEC cases (n=177) were examined for CRTC1/3-MAML2, histological variants were classified, and tumors were graded according to four different grading systems. Adverse histological features considered unusual in MEC were also investigated. RESULTS Of the 177 MEC cases, 110 were positive for CRTC1/3-MAML2. The classical variant was most frequent in the fusion-positive, fusion-negative, and all case groups. Clear/oncocytic variant was the second most frequent in the fusion-positive and total case groups. Oncocytic, Warthin-like, and spindle variants were recognized in the fusion-positive group only. Clear cell, sclerosing, mucinous, and central variants were recorded in both fusion-positive and fusion-negative groups. No case was classified as a ciliated variant, as a mucoacinar variant, or as a high-grade transformation. Compared with the classical variant, non-classical variants were characterized by frequent CRTC1/3-MAML2 fusions and a lower clinical stage in all cases. Of four histological features considered unusual in MEC, marked nuclear atypia, frequent mitoses (>10/10HPFs), and extensive necrosis were found independently of the fusion status, and accounted for 3-5% of all cases. However, none of the cases showed overt keratinization. On comparison, the AFIP and modified Healey grading systems downgraded tumors, the Brandwein system upgraded tumors, and the Memorial Sloan Kettering system provided a moderate means of assessment. CONCLUSION Recognition of the histological diversity of MEC, its clinicopathological features, and its associations with CRTC1/3-MAML2 fusions is helpful for an accurate diagnosis of this carcinoma.
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Affiliation(s)
- Satsuki Nakano
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Yoshihide Okumura
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan.,Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Takayuki Murase
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | | | - Makoto Urano
- Department of Diagnostic Pathology, Fujita Health University, School of Medicine, Bantane Hospital, Nagoya, Japan
| | - Hidetaka Yamamoto
- Department of Anatomic Pathology, Graduate of School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Satoshi Kano
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kiyoaki Tsukahara
- Department of Otorhinolaryngology, Head and Neck Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Okami
- Department of Otolaryngology-Head and Neck Surgery, Tokai University School of Medicine, Isehara, Japan
| | - Daisuke Kawakita
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Toru Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Nobuhiro Hanai
- Department of Head and Neck Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Hiroshi Iwai
- Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University, Hirakata, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Yuichiro Tada
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Ken-Ichi Nibu
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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16
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Chen Z, Zhang L, Huang J, Ding C, Zhang T, Wan D, Xue L. Targeted-Gene Sequencing and Bioinformatics Analysis of Patients with Pancreatic Mucoepidermoid Carcinoma: A Case Report and Literature Review. Onco Targets Ther 2021; 14:3567-3581. [PMID: 34113123 PMCID: PMC8184241 DOI: 10.2147/ott.s305248] [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: 02/10/2021] [Accepted: 05/11/2021] [Indexed: 12/19/2022] Open
Abstract
Background Primary pancreatic mucoepidermoid carcinoma (MEC) is an extremely rare malignant tumor with unclear etiology and pathogenesis. There are only eleven reported cases in English papers published from 1959 to 2020. MEC generally occurs in the salivary gland, but cases in the pancreas have also been reported. Although being considered as a low-grade indolent carcinoma, pancreatic MEC always invades the surrounding lymph node and metastasizes. The prognosis of pancreatic MEC is unsatisfactory. To date, the genetic alterations, mechanistic relationships among mutated genes and signaling pathways of pancreatic MEC are unclear. Patient and Methods This paper presents a case of rare primary pancreatic MEC in a 56-year-old male patient with liver metastasis. Radical surgery of distal pancreatectomy and radiofrequency ablation (RFA) of two liver metastatic lesions is conducted. Targeted-gene sequencing and bioinformatics analysis tools, including STRING, DAVID, cBioPortal, DGidb and Human Protein Atlas database (HPA), are used to clarify the biological functions and features of mutated genes in pancreatic MEC. Results Eight gene mutations (TP53, KRAS, ATR, FLI1, FLT4, MAGI2, RBM10, and TNFAIP3) were observed, and a tumor mutation burden (TMB) of 5.6 muts/Mb was calculated in the pancreatic MEC using targeted-gene sequencing. The patient subsequently underwent adjuvant chemotherapy and died three months after surgery. Gene–gene interaction network was constructed, which showed the significant interactions among eight mutated genes. In terms of the functions and pathways of eight gene mutations based on GO and KEGG, 20 tumor-related results are presented in this paper, Furthermore, the biological functions and features of pancreatic MEC are further compared with pancreatic ductal adenocarcinoma. Conclusion Pancreatic MEC requires early and effective treatment, and lymph node metastases and multiple organ metastases were unfavorable prognostic factors. Pancreatic MEC can be compared with other pancreatic cancers that have characteristic clinical phenotype, molecular alterations, functional information and enrichment pathway.
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Affiliation(s)
- Zhitao Chen
- Department of Hepatobiliary Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, People's Republic of China.,School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Lele Zhang
- School of Medicine, Zhejiang University, Hangzhou, People's Republic of China.,Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Jiacheng Huang
- School of Medicine, Zhejiang University, Hangzhou, People's Republic of China.,Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Chenchen Ding
- Department of Hepatobiliary Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, People's Republic of China
| | - Ting Zhang
- Department of Hepatobiliary Surgery, Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College, Hangzhou, People's Republic of China
| | - Dalong Wan
- Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Liang Xue
- Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
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17
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Dos Santos ES, Rodrigues-Fernandes CI, Speight PM, Khurram SA, Alsanie I, Costa Normando AG, Prado-Ribeiro AC, Brandão TB, Kowalski LP, Silva Guerra EN, Lopes MA, Vargas PA, Santos-Silva AR, Leme AFP. Impact of tumor site on the prognosis of salivary gland neoplasms: A systematic review and meta-analysis. Crit Rev Oncol Hematol 2021; 162:103352. [PMID: 33991662 DOI: 10.1016/j.critrevonc.2021.103352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/28/2021] [Accepted: 05/08/2021] [Indexed: 01/05/2023] Open
Abstract
In numerous types of cancer, the primary tumor site can show a correlation with disease behavior and survival outcomes. In salivary gland tumors (SGTs) this association remains controversial. This study assessed the association between primary sites of SGTs and prognosis. Studies from five databases were assessed and a meta-analysis was performed using studies that presented 95 % confidence interval (95 % CI), hazard ratio (HR) and survival analysis. Gathered information from 46,361 patients showed that site had a prognostic impact on SGTs. Tumors involving minor salivary glands showed worse overall survival (HR = 1.60; 95 % CI = 1.17-2.19; p = 0.003), disease-specific survival (HR=1.63; 95 % CI = 1.12-2.37; p = 0.01), and cause-specific survival (HR=2.10; 95 % CI = 1.72-2.55; p = 0.00001). Tumors from major salivary glands showed better recurrence-free survival (HR=2.31; 95 % CI = 1.77-3.02; p = 0.00001), and locoregional control of disease (HR=2.66; 95 % CI = 1.20-5.91; p = 0.02). Our results showed that the primary site of SGTs has an impact on patient prognosis.
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Affiliation(s)
| | | | - Paul M Speight
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Syed Ali Khurram
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Ibrahim Alsanie
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom; Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | | | - Ana Carolina Prado-Ribeiro
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil; Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
| | - Thaís Bianca Brandão
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
| | - Luiz Paulo Kowalski
- Head and Neck Surgery Department, University of Sao Paulo Medical School and Department of Head and Neck Surgery and Otorhinolaryngology A C Camargo Cancer Center, São Paulo, Brazil
| | - Eliete Neves Silva Guerra
- Laboratory of Oral Histopathology, School of Health Sciences, University of Brasília, Brasilia, Brazil
| | - Marcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Bioscience National Laboratory, Brazil Center of Research in Energy and Materials, Campinas, Brazil
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18
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Zanella VG, Wagner VP, Schmidt TR, Thieme S, Correa C, Fonseca FP, Rigon P, Barra MB, Kroef RG, Vargas PA, Martins MD. Salivary gland cancer in Southern Brazil: a prognostic study of 107 cases. Med Oral Patol Oral Cir Bucal 2021; 26:e393-e403. [PMID: 33247564 PMCID: PMC8141320 DOI: 10.4317/medoral.24248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/02/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Salivary gland cancers (SGC) represent an uncommon group of heterogeneous tumors. We performed a retrospective survey of SGC diagnosed in a reference center for treatment of malignant tumors from the south of Brazil aiming to determine the prognostic value of demographic, clinic and pathologic features. MATERIAL AND METHODS Cases diagnosed as SGC between 2006 and 2016 were retrospectively collected. Medical records were examined to extract demographic, clinic, pathologic and follow-up information. RESULTS One-hundred and seven cases of SGC were identified. The most common SGC were mucoepidermoid carcinoma (MEC) (n = 39) followed by adenoid cystic carcinoma (AdCC) (n = 29). Among AdCCs, 55.2% of cases were classified as cribriform, 27.6% as tubular and 17.2% as solid. The tubular subtype had the highest percentage of cases with perineural invasion (p=0.01). Among MEC, 61.5% of cases were classified as low grade, 15.4% as intermediate grade and 19.9% as high grade. Low grade MEC had the lowest percentage of cases with perineural invasion (p=0.04). The 5-year survival for loco-regional control, disease-free survival (DFS) and disease-specific survival were 75%, 70% and 84%, respectively. The following features were associated with poor DFS: advanced age (p=0.03), rural residency (p=0.01), being a smoker or former smoker (p=0.01), pain (p=0.03), nodal metastasis (p<0.001), need for chemotherapy (p=0.02), neck dissection (p=0.04), perineural invasion (p=0.01), and being diagnosed with AdCC compared to MEC (p=0.02). CONCLUSIONS The clinco-demographic and pathologic features identified as prognostic factors reveal the profile of patients at increased risk of recurrence and who would benefit from closer follow-up.
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Affiliation(s)
- V-G Zanella
- Faculdade de Odontologia Universidade Federal do Rio Grande do Sul Rua Ramiro Barcelos, 2492, sala 503 CEP: 90035-003 - Santana, Porto Alegre RS, Brazil
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19
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Geiger JL, Ismaila N, Beadle B, Caudell JJ, Chau N, Deschler D, Glastonbury C, Kaufman M, Lamarre E, Lau HY, Licitra L, Moore MG, Rodriguez C, Roshal A, Seethala R, Swiecicki P, Ha P. Management of Salivary Gland Malignancy: ASCO Guideline. J Clin Oncol 2021; 39:1909-1941. [PMID: 33900808 DOI: 10.1200/jco.21.00449] [Citation(s) in RCA: 154] [Impact Index Per Article: 51.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE To provide evidence-based recommendations for practicing physicians and other healthcare providers on the management of salivary gland malignancy. METHODS ASCO convened an Expert Panel of medical oncology, surgical oncology, radiation oncology, neuroradiology, pathology, and patient advocacy experts to conduct a literature search, which included systematic reviews, meta-analyses, randomized controlled trials, and prospective and retrospective comparative observational studies published from 2000 through 2020. Outcomes of interest included survival, diagnostic accuracy, disease recurrence, and quality of life. Expert Panel members used available evidence and informal consensus to develop evidence-based guideline recommendations. RESULTS The literature search identified 293 relevant studies to inform the evidence base for this guideline. Six main clinical questions were addressed, which included subquestions on preoperative evaluations, surgical diagnostic and therapeutic procedures, appropriate radiotherapy techniques, the role of systemic therapy, and follow-up evaluations. RECOMMENDATIONS When possible, evidence-based recommendations were developed to address the diagnosis and appropriate preoperative evaluations for patients with a salivary gland malignancy, therapeutic procedures, and appropriate treatment options in various salivary gland histologies.Additional information is available at www.asco.org/head-neck-cancer-guidelines.
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Affiliation(s)
| | | | | | | | | | | | | | - Marnie Kaufman
- Adenoid Cystic Carcinoma Research Foundation, Needham, MA
| | | | | | - Lisa Licitra
- Istituto Nazionale Tumori, Milan, Italy.,University of Milan, Milan, Italy
| | | | | | | | | | | | - Patrick Ha
- University of California San Francisco, San Francisco, CA
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20
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Parra O, Bridge JA, Busam KJ, Shalin SC, Linos K. Dermal melanocytic tumor with CRTC1-TRIM11 fusion: Report of two additional cases with review of the literature of an emerging entity. J Cutan Pathol 2021; 48:915-924. [PMID: 33586183 DOI: 10.1111/cup.13984] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 01/17/2023]
Abstract
"Cutaneous melanocytic tumor with CRTC1-TRIM11 fusion" (CMTCT) is a newly described, potentially novel entity that typically presents as a dermal nodule on the head and neck, extremities, and trunk of adults. Histopathologically, it is reported as a nodular or multinodular tumor composed of epithelioid and spindle cells that are variably immunoreactive for S100-protein, SOX10, and MITF along with more specific melanocytic markers such as MelanA and HMB45. With only 11 cases reported in the English literature so far, the neoplasm appears to behave in a relatively indolent fashion. Nevertheless, in one case, local recurrence and synchronous distant metastasis were evident after 13 years. Additional cases with longer follow-up are essential to determine the neoplasm's biologic behavior with more accuracy. Herein, two cases of CMTCT, one arising on the lower back of a 65-year-old female and the other on the arm of a 33-year-old female in addition to a comprehensive literature review are reported.
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Affiliation(s)
- Ourania Parra
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Julia A Bridge
- Division of Molecular Pathology, The Translational Genomics Research Institute/Ashion, Phoenix, Arizona, USA.,Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Klaus J Busam
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Sara C Shalin
- Department of Pathology and Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Konstantinos Linos
- Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, USA.,Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
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21
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Louredo BVR, Santos-Silva AR, Vargas PA, Ajudarte Lopes M, Martins MD, Guerra ENDS, Prado Ribeiro AC, Brandão TB, de Mendonça RMH, Kowalski LP, Speight PM, Khurram SA, Pérez-de-Oliveira ME. Clinicopathological analysis and survival outcomes of primary salivary gland tumors in pediatric patients: A systematic review. J Oral Pathol Med 2021; 50:435-443. [PMID: 33314344 DOI: 10.1111/jop.13151] [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: 11/11/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Salivary gland tumors are a diverse group of uncommon neoplasms that are rare in pediatric patients. The aim of this study was to evaluate the clinicopathological profile and survival outcomes of pediatric patients affected by salivary gland tumors. MATERIALS AND METHODS An extensive search was carried out using the MEDLINE/PubMed, EMBASE, Scopus databases, and grey literature. The risk of bias was available in all papers included. RESULTS A total of 2,830 articles were initially retrieved with 54 remaining for data extraction, resulting in 2,937 cases. This comprised forty-five case series' and nine cohort studies. These tumors were slightly more prevalent in females (57.4%). The patients' age ranged from 0.3 to 19 years old, with a mean age of 13.3 years. Parotid was the most affected site (81.9%), and 99.2% of cases clinically exhibited a swelling. Presence of pain/tenderness was reported in 13.5% of the cases, with an average duration of 12.6 months for the appearance of symptoms. Most of the reported cases were malignant tumors (75.4%), with mucoepidermoid carcinoma the most common tumor of all tumors (44.8%), followed by pleomorphic adenoma (24.1%). Surgery alone was the leading treatment choice in 74.9% cases, and the 5-year overall survival rate of patients was 93.1%. Patients with symptoms (P = .001), local recurrence (P < .001), metastasis (P < .001), and those not undergoing surgery or surgery combined with radiotherapy (P < .001) showed lower survival rates. CONCLUSION The pediatric patients present a high frequency of malignant salivary neoplasms and a high overall survival rate.
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Affiliation(s)
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil
| | - Márcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil
| | - Manoela Domingues Martins
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil.,Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Ana Carolina Prado Ribeiro
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil.,Dental Oncology Service, São Paulo State Cancer Institute, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Thaís Bianca Brandão
- Dental Oncology Service, São Paulo State Cancer Institute, School of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Luiz Paulo Kowalski
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil.,Department of Head and Neck Surgery and Otorhinolaryngology, AC Camargo Cancer Center, São Paulo, Brazil.,Department of Head and Neck Surgery, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Paul M Speight
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - Syed Ali Khurram
- Unit of Oral & Maxillofacial Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, UK
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22
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TrkB-Targeted Therapy for Mucoepidermoid Carcinoma. Biomedicines 2020; 8:biomedicines8120531. [PMID: 33255325 PMCID: PMC7759804 DOI: 10.3390/biomedicines8120531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 12/21/2022] Open
Abstract
The brain-derived neurotrophic factor (BDNF)/tyrosine receptor kinase B (TrkB) pathway was previously associated with key oncogenic outcomes in a number of adenocarcinomas. The aim of our study was to determine the role of this pathway in mucoepidermoid carcinoma (MEC). Three MEC cell lines (UM-HMC-2, H253 and H292) were exposed to Cisplatin, the TrkB inhibitor, ANA-12 and a combination of these drugs. Ultrastructural changes were assessed through transmission electron microscopy; scratch and Transwell assays were used to assess migration and invasion; and a clonogenic assay and spheroid-forming assay allowed assessment of survival and percentage of cancer stem cells (CSC). Changes in cell ultrastructure demonstrated Cisplatin cytotoxicity, while the effects of ANA-12 were less pronounced. Both drugs, used individually and in combination, delayed MEC cell migration, invasion and survival. ANA-12 significantly reduced the number of CSC, but the Cisplatin effect was greater, almost eliminating this cell population in all MEC cell lines. Interestingly, the spheroid forming capacity recovered, following the combination therapy, as compared to Cisplatin alone. Our studies allowed us to conclude that the TrkB inhibition, efficiently impaired MEC cell migration, invasion and survival in vitro, however, the decrease in CSC number, following the combined treatment of ANA-12 and Cisplatin, was less than that seen with Cisplatin alone; this represents a limiting factor.
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23
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Okumura Y, Nakano S, Murase T, Ueda K, Kawakita D, Nagao T, Kusafuka K, Urano M, Yamamoto H, Kano S, Tsukahara K, Okami K, Nagao T, Hanai N, Iwai H, Kawata R, Tada Y, Nibu K, Inagaki H. Prognostic impact of CRTC1/3-MAML2 fusions in salivary gland mucoepidermoid carcinoma: A multiinstitutional retrospective study. Cancer Sci 2020; 111:4195-4204. [PMID: 32860299 PMCID: PMC7648036 DOI: 10.1111/cas.14632] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
Mucoepidermoid carcinoma (MEC) is rare, but the most common primary malignancy of the salivary gland and not infrequent in young individuals. CRTC1/3-MAML2 fusions are frequently detected in MEC and are useful as a diagnostic biomarker. However, there has been debate as to whether the fusions have prognostic significance. In this study, we retrospectively collected 153 salivary gland MEC cases from 11 tertiary hospitals in Japan. As inclusion criteria, the MEC patients in this study had curative surgery as the initial treatment, received no preoperative treatment, and had no distant metastasis at the time of the initial surgery. The MEC diagnosis was validated by a central pathology review by five expert salivary gland pathologists. The CRTC1/3-MAML2 fusions were detected using FISH and RT-PCR. In 153 MEC cases, 90 (58.8%) were positive for CRTC1/3-MAML2 fusions. During the follow-up period, 28 (18.3%) patients showed tumor recurrence and 12 (7.8%) patients died. The presence of the fusions was associated with favorable tumor features. Of note, none of the fusion-positive patients died during the follow-up period. Statistical analysis showed that the presence of the fusions was a prognostic indicator of a better overall survival in the total and advanced-stage MEC cohorts, but not in the early-stage MEC cohort. In conclusion, CRTC1/3-MAML2 fusions are an excellent biomarker for favorable overall survival of patients with salivary gland MEC.
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Affiliation(s)
- Yoshihide Okumura
- Department of Pathology and Molecular DiagnosticsGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
- Department of Maxillofacial SurgerySchool of DentistryAichi‐Gakuin UniversityNagoyaJapan
| | - Satsuki Nakano
- Department of Pathology and Molecular DiagnosticsGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
| | - Takayuki Murase
- Department of Pathology and Molecular DiagnosticsGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
| | - Kaori Ueda
- Department of Pathology and Molecular DiagnosticsGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
- Department of Maxillofacial SurgerySchool of DentistryAichi‐Gakuin UniversityNagoyaJapan
| | - Daisuke Kawakita
- Department of Otolaryngology, Head and Neck SurgeryGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
| | - Toshitaka Nagao
- Department of Anatomic PathologyTokyo Medical UniversityTokyoJapan
| | | | - Makoto Urano
- Department of Diagnostic PathologySchool of MedicineFujita Health UniversityToyoakeJapan
| | - Hidetaka Yamamoto
- Department of Anatomic PathologyGraduate of School of Medical ScienceKyushu UniversityFukuokaJapan
| | - Satoshi Kano
- Department of Otolaryngology‐Head and Neck SurgeryFaculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Kiyoaki Tsukahara
- Department of Otorhinolaryngology, Head and Neck SurgeryTokyo Medical UniversityTokyoJapan
| | - Kenji Okami
- Department of Otolaryngology‐Head and Neck SurgeryTokai University School of MedicineIseharaJapan
| | - Toru Nagao
- Department of Maxillofacial SurgerySchool of DentistryAichi‐Gakuin UniversityNagoyaJapan
| | - Nobuhiro Hanai
- Department of Head and Neck SurgeryAichi Cancer Center HospitalNagoyaJapan
| | - Hiroshi Iwai
- Department of Otolaryngology, Head and Neck SurgeryKansai Medical UniversityHirakataJapan
| | - Ryo Kawata
- Department of Otorhinolaryngology‐Head and Neck SurgeryOsaka Medical CollegeTakatsukiJapan
| | - Yuichiro Tada
- Department of Head and Neck Oncology and SurgeryInternational University of Health and WelfareMita HospitalTokyoJapan
| | - Ken‐Ichi Nibu
- Department of Otolaryngology‐Head and Neck SurgeryKobe University Graduate School of MedicineKobeJapan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular DiagnosticsGraduate School of Medical SciencesNagoya City UniversityNagoyaJapan
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24
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Magno Guimarães D, deLucas da Silva Almeida F, Moraes Castilho R, Eduardo Nor J, Daumas Nunes F. DNA methyltransferase expression is associated with cell proliferation in salivary mucoepidermoid carcinoma. J Oral Pathol Med 2020; 49:1053-1060. [PMID: 32740989 DOI: 10.1111/jop.13092] [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: 02/03/2020] [Revised: 06/11/2020] [Accepted: 06/21/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES The present study investigated the correlation between the expression of DNA methyltransferase (DNMT)1, DNMT3A, and DNMT3B and the proliferation of mucoepidermoid carcinomas (MECs) using the molecular markers Ki-67 and cyclin D1. This study also demonstrates the effects of 5-aza-2-deoxycytidine (5AC) on the MEC tumor cell lines in relation to DNMT1 and DNMT3A expression, and cell-cycle arrest. MATERIALS AND METHODS The immunohistochemistry of DNMT1, DNMT3A, DNMT3B, Ki-67, and cyclin D1 was analyzed in 40 samples of MEC and 15 samples of healthy minor salivary glands. The effects of 5AC on DNMT1 and DNMT3B expression in MEC cell lines were analyzed by Western blot, and the effects of 5AC on the cell cycle were analyzed using flow cytometry. RESULTS The expression of DNMT1 and DNMT3B was more intense in MECs than in healthy salivary glands. A strong correlation was found between the expression of the DNMTs and the proliferation markers. This correlation was validated In Vitro, where treatment with 5AC reduced the expression of the DNMTs and the percentage of cells at the G2/M phase of the cell cycle. CONCLUSION The expression of DNMT1, DNMT3A, DNMT3B is correlated significantly with the expression of Ki-67 and cyclin D1. The treatment with 5AC reduces DNMT expression and decreases the percentage of cells at the G2/M phase of the cell cycle, while increasing the cells at the G0/G1 phase.
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Affiliation(s)
- Douglas Magno Guimarães
- Dental School, University Center of Pará, Belém, Pará, Brazil.,Department of Surgery and Oral Pathology, João de Barros Barreto University Hospital, Belém, Pará, Brazil
| | | | - Rogerio Moraes Castilho
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Jaques Eduardo Nor
- Department of Restorative Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Fabio Daumas Nunes
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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