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Samra S, Mendis R, Wong E, Morgan G, Coleman H. Radiolucent lesion of the mandible with an indolent course over 10 years. Oral Surg Oral Med Oral Pathol Oral Radiol 2022; 134:513-520. [PMID: 35461798 DOI: 10.1016/j.oooo.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 10/19/2022]
Affiliation(s)
- Spinderjeet Samra
- Institute of Clinical Pathology and Medical Research, Westmead Hospital, Westmead NSW, Australia; Sydney Medical School, University of Sydney, Sydney, Australia
| | - Rajith Mendis
- Head and Neck Surgery, Westmead Hospital, Westmead NSW, Australia.
| | - Eva Wong
- Sydney Medical School, University of Sydney, Sydney, Australia; Head and Neck Surgery, Westmead Hospital, Westmead NSW, Australia
| | - Gary Morgan
- Sydney Medical School, University of Sydney, Sydney, Australia; Head and Neck Surgery, Westmead Hospital, Westmead NSW, Australia
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Wang Y, Yuan D, Zhou L, Liang Z, Zhou W, Lu J, Jiang B, You L, Guo J, Zhao YP. Transducin-Like Enhancer of Split-1 Inhibits Malignant Behaviors in vitro and Predicts a Better Prognosis in Pancreatic Ductal Adenocarcinoma. Front Oncol 2020; 10:576. [PMID: 32432037 PMCID: PMC7214815 DOI: 10.3389/fonc.2020.00576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 03/30/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Transducin-like enhancer of split-1 (TLE1), a member of the Groucho/TLE family of transcriptional corepressors, has been reported to be involved in the tumorigenesis of various cancers and function as a clinical prognostic indicator. However, the mechanisms and prognostic significance of TLE1 in pancreatic ductal adenocarcinoma (PDAC) have not been elucidated. Methods: In this study, western blot analyses and real-time polymerase chain reaction (RT-PCR) were employed to evaluate the expression of TLE1 and related proteins in PDAC cell lines. Wound healing, transwell migration and invasion, and Cell Counting Kit-8 (CCK-8) assays were used to determine cell line-specific differences in metastasis and proliferation. Flow cytometry was performed for cell cycle detection. RNA sequencing and bioinformatics were undertaken to explore the molecular mechanisms and potential targeted molecules of TLE1. TLE1 expression in tumor and para-tumor tissues was evaluated by tissue microarray-based immunohistochemistry using a semiquantitative method (H-score) in 262 patients with radical PDAC resection. Correlation, Kaplan-Meier survival, univariate, and multivariate analyses were also performed. Results: Our findings showed that TLE1 expression was common in PDAC cell lines. Upregulation of TLE1 inhibited PDAC cell migration, invasion, and proliferation in vitro by delaying the G0/G1 transition. Immunohistochemistry revealed that TLE1 was specifically expressed in the nucleus and at higher levels in tumor tissues compared with para-tumor tissues. Generally, high TLE1 expression was associated with no vascular invasion. In univariate analyses, high TLE1 expression was associated with longer disease-specific survival (DSS) in all patients and in 16 patient subgroups. In multivariate analyses, TLE1 expression was independently associated with DSS in all patients and four patient subgroups. Conclusion: In conclusion, these results suggest that TLE1 has an inhibitory role in PDAC progression and is a favorable prognostic indicator for patients with resectable PDAC.
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Affiliation(s)
- Yizhi Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Da Yuan
- Medical Management Office, Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Li Zhou
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zhiyong Liang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Weixun Zhou
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jun Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Bolun Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Lei You
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Junchao Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yu-Pei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Diagnostic Value of TLE1 in Synovial Sarcoma: A Systematic Review and Meta-Analysis. Sarcoma 2020; 2020:7192347. [PMID: 32322158 PMCID: PMC7166261 DOI: 10.1155/2020/7192347] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/06/2020] [Indexed: 12/22/2022] Open
Abstract
Background Synovial sarcoma can present morphologically in multiple forms, including biphasic and monophasic subtypes. As a result, the histological diagnosis can sometimes be challenging. Transducin-Like Enhancer 1 (TLE1) is a transcriptional corepressor that normally is involved in embryogenesis and hematopoiesis but is also expressed in certain tumors. This systematic review examines the potential role of TLE1 as a diagnostic biomarker for the synovial sarcoma. Materials and Methods. A literature review and meta-analysis were conducted using the electronic databases Pubmed, the Cochrane Library, and Google Scholar. Thirteen studies met our eligibility criteria and were selected for in-depth analysis. Results The mean sensitivity and specificity of TLE1 in detecting synovial sarcoma were 94% (95% CI 91%-97%) and 81% (95% CI 72%-91%), respectively, when all studies were aggregated together. The mean positive predictive value (PPV) of TLE1 was 75% (95% CI 62%-87%), whereas the negative predictive value (NPV) was 96% (95% CI 93%-98%). Conclusion TLE1 is a sensitive and specific marker for synovial sarcoma that can aid in its diagnosis. Due to its involvement in several relevant signaling pathways, TLE1 might have direct relevance to the pathophysiology of the disease.
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Khalil EZI, Osman NAA. The combined use of H3K27 trimethylation and TLE1 can provide additional diagnostic value for malignant peripheral nerve sheath tumor and synovial sarcoma. Ann Diagn Pathol 2019; 45:151450. [PMID: 32007715 DOI: 10.1016/j.anndiagpath.2019.151450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/02/2019] [Accepted: 11/27/2019] [Indexed: 10/25/2022]
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Duncan VE, Wicker JA, Kelly DR, Li R. TLE1 Expression in Malignant Rhabdoid Tumor and Atypical Teratoid/Rhabdoid Tumor. Pediatr Dev Pathol 2018; 21:522-527. [PMID: 29490565 DOI: 10.1177/1093526618761720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Malignant rhabdoid tumors (MRT; atypical teratoid/rhabdoid tumor [ATRT] in the central nervous system) are aggressive tumors in infants and children which can overlap with other sarcomas, such as synovial sarcoma (SS). The gold standard for SS diagnosis is characterization of the t(X;18) chromosomal translocation. However, stratification of cases for molecular analysis is not always straightforward or feasible. Recent literature suggests transducer-like enhancer of split 1 (TLE1) protein expression may distinguish SS from certain histologic mimics; however, this has not been investigated in MRT and ATRT. We stained whole-tissue sections of 18 archived cases of MRT and ATRT with TLE1. Nuclear expression was scored using a 4-tiered (0, 1+, 2+, and 3+) scale describing staining intensity, extent, or combination of both. The majority of MRT and ATRT cases showed some TLE1 immunoreactivity (n = 16; 89% for ≥1 + staining); 14 (78%) of total cases showed ≥2 + positivity using any of the 3 scoring systems. Over half (n = 10; 56%) of cases showed ≥2 + staining; 4 (22%) cases showed 3 + strong and diffuse TLE1 staining measured by all scoring systems in agreement. Although still of potential use, we urge caution in the interpretation of TLE1 when the differential diagnosis includes both SS and MRT or ATRT.
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Affiliation(s)
- Virginia E Duncan
- 1 Department of Pathology, Seattle Children's Hospital, Seattle, Washington
| | - Jason A Wicker
- 2 Department of Pathology, Children's of Alabama, Birmingham, Alabama
- 3 Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - David R Kelly
- 2 Department of Pathology, Children's of Alabama, Birmingham, Alabama
- 3 Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Rong Li
- 2 Department of Pathology, Children's of Alabama, Birmingham, Alabama
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Morrell TJ, Xiong Y, Deng A, Dresser K, O’Donnell P, Cornejo KM. Expression of TLE1 in Malignant Melanoma With Spindle Cell Morphology: A Potential Diagnostic Pitfall. Int J Surg Pathol 2018; 27:259-262. [DOI: 10.1177/1066896918805137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objectives. Transducer-like enhancer of split 1 (TLE1) immunohistochemistry is widely used as a biomarker of synovial sarcoma. Spindle cell or desmoplastic melanoma can morphologically mimic synovial sarcoma. The aim of this study was to investigate the expression of TLE1 in melanomas with a spindle cell morphology. Methods. A search of the surgical pathology files resulted in 57 cases of melanomas diagnosed with a spindle cell or desmoplastic component. After review, 8 cases had no definitive dermal spindle cell component and 7 cases had insufficient tissue remaining and were excluded from the study. A total of 42 melanomas were examined for TLE1 immunohistochemistry using a mouse monoclonal antibody (Cell Marque, clone 1F5). Strength and percentage of nuclear TLE1 positivity was graded on a scale from 0 to 3+. Staining for TLE1 was considered positive for 2 to 3+ and negative for 0 to 1+. Results. Nuclear TLE1 expression was identified in 24 (57%) of the 42 melanoma cases with spindle cell morphology (2+, n = 14; 3+, n = 10). TLE1 was considered negative in 18 cases (43%), of which most contained weak staining (1+, n = 14 [33%]) and only a small subset did not show any staining (0, n = 4 [10%]). Conclusion. TLE1 frequently highlights melanomas with spindle cell morphology and is a potential diagnostic pitfall. Therefore, when evaluating spindle cell tumors in which the differential may include both a melanoma and synovial sarcoma, TLE1 expression should be interpreted with caution and in conjunction with an immunohistochemical panel.
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Affiliation(s)
- Travis J. Morrell
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
| | - Yiqin Xiong
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
| | - April Deng
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
| | - Karen Dresser
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
| | - Patrick O’Donnell
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
| | - Kristine M. Cornejo
- University of Massachusetts Medical School, UMass Memorial Medical Center, Worcester, MA, USA
- Massachusetts General Hospital, Boston, MA, USA
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Yuan D, Yang X, Yuan Z, Zhao Y, Guo J. TLE1 function and therapeutic potential in cancer. Oncotarget 2017; 8:15971-15976. [PMID: 27852056 PMCID: PMC5362539 DOI: 10.18632/oncotarget.13278] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 11/01/2016] [Indexed: 12/18/2022] Open
Abstract
Groucho (Gro)/Transducin-like enhancer of split (TLE) family proteins act as co-repressors of many transcription factors, and are involved in key signaling pathways. TLE1 negatively regulates inflammation and has potential roles in various diseases, including cancer. Previous studies suggest TLE1 could be used as a diagnostic marker and is a possible therapeutic target in various malignancies. It is therefore important to elucidate the mechanisms underlying TLE1 function during cancer initiation and metastasis. In this review, we highlight the functions of TLE1 in cancer and explore targeted approaches for cancer diagnosis and treatment. In particular, we discuss the TLE1 function in pancreatic cancer.
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Affiliation(s)
- Da Yuan
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xue Yang
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Zhenpeng Yuan
- Department of Pediatric Cardiac Surgery, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yanqing Zhao
- Institute of Medical Information, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Junchao Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Ding Y, Gibbs J, Xiong G, Guo S, Raj S, Bui MM. Endometriosis Mimicking Soft-Tissue Neoplasms: A Potential Diagnostic Pitfall. Cancer Control 2017; 24:83-88. [DOI: 10.1177/107327481702400114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Affiliation(s)
- Yi Ding
- Departments of Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - Julie Gibbs
- Beijing Jishuitan Hospital, Fourth Medical College of Peking University, China, Department of Pathology and Cell Biology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - Ge Xiong
- Hand Surgery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - Shigong Guo
- University of South Florida Morsani College of Medicine, Tampa, Florida, Department of Trauma & Orthopaedic Surgery, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - Shailaja Raj
- St Mary's Hospital, London, United Kingdom, and the Departments of Sarcoma, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
| | - Marilyn M. Bui
- St Mary's Hospital, London, United Kingdom, and the Departments of Sarcoma, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
- Anatomic Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
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