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Suster D, Miller JA, Pihan G, Mackinnon AC, Suster S. Expression patterns for Bcl-2, EMA, β-catenin, E-cadherin, PAX8, and MIB1 in thymomas. Mod Pathol 2021; 34:1831-1838. [PMID: 34135467 DOI: 10.1038/s41379-021-00839-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 11/09/2022]
Abstract
The expression of immunohistochemical markers has been extensively investigated in thymomas to assist in the differential diagnosis. We have studied six select markers to determine their utility in the evaluation of these tumors. A series of 126 thymomas including 33 type A, 27 type AB, 20 type B1, 22 type B2, and 24 type B3, were examined utilizing a tissue microarray (TMA) technique with antibodies to e-cadherin, β-catenin, PAX8, bcl-2, EMA, and MIB-1. Keratin AE1/AE3 and p63 were used for quality control. A significant finding was strong and consistent positivity for bcl-2 in type A (90%) and type AB (88.8%) thymoma, while 100% of B1, B2, and B3 were negative. The distribution of e-cadherin and β-catenin was not useful for differential diagnosis. E-cadherin and β-catenin were expressed in a high proportion of all the tumors (92-100%), except for B2 thymoma which showed only 45% expression. A significant increase in the expression of the MIB-1 proliferation marker (mean: 12.8% nuclear positivity) was also observed in B3 thymoma compared with the other histologic types. Statistical significance was confirmed using Kruskal's non-parameterized test for distribution. EMA was generally negative except for spindle cells in the fibrous septa in types A and AB thymoma. PAX8 showed less consistent nuclear staining than p63 and was only widely expressed in 55.7% of cases. Bcl-2 may serve as a useful marker to separate spindle cell thymomas (Type A and AB) from the other types, and the MIB1 proliferation index may be of use to differentiate type B2 from type B3 thymoma.
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Affiliation(s)
- David Suster
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - James A Miller
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - German Pihan
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - A Craig Mackinnon
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Saul Suster
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA.
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2
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Montero-Herradón S, Zapata AG. Delayed maturation of thymic epithelium in mice with specific deletion of β-catenin gene in FoxN1 positive cells. Histochem Cell Biol 2021; 156:315-332. [PMID: 34254201 PMCID: PMC8550644 DOI: 10.1007/s00418-021-02012-w] [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] [Accepted: 06/30/2021] [Indexed: 10/24/2022]
Abstract
Wnt signalling pathways have been reported to be involved in thymus development but their precise role in the development of both thymic epithelium (TE) and thymocytes is controversial. Herein, we examined embryonic, postnatal and adult thymi of mice with a specific deletion of β-catenin gene in FoxN1+ thymic epithelial cells (TECs). Together with a high postnatal mouse mortality, the analysis showed severe thymic hypocellularity, largely due an important reduction in numbers of developing thymocytes, and delayed, partially blocked maturation of mutant TECs. Affected TECs included largely cortical (c) TEC subsets, such as immature MTS20+ TECs, Ly51+ cTECs and a remarkable, rare Ly51+MTS20+MHCIIhi cell subpopulation previously reported to contain thymic epithelial progenitor cells (TEPCs) (Ulyanchenko et al., Cell Rep 14:2819-2832, 2016). In addition, altered postnatal organization of mutant thymic medulla failed to organize a unique, central epithelial area. This delayed maturation of TE cell components correlated with low transcript production of some molecules reported to be masters for TEC maturation, such as EphB2, EphB3 and RANK. Changes in the thymic lymphoid component became particularly evident after birth, when molecules expressed by TECs and involved in early T-cell maturation, such as CCL25, CXCL12 and Dll4, exhibited minimal values. This represented a partial blockade of the progression of DN to DP cells and reduced proportions of this last thymocyte subset. At 1 month, in correlation with a significant increase in transcript production, the DP cell percentage increased in correlation with a significant fall in the number of mature TCRαβhi thymocytes and peripheral T lymphocytes.
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Affiliation(s)
- Sara Montero-Herradón
- Department of Cell Biology, Faculty of Biology, Complutense University of Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain.,Health Research Institute, Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Agustín G Zapata
- Department of Cell Biology, Faculty of Biology, Complutense University of Madrid, C/ José Antonio Nováis 2, 28040, Madrid, Spain. .,Health Research Institute, Hospital 12 de Octubre (imas12), Madrid, Spain.
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Vodicka P, Krskova L, Odintsov I, Krizova L, Sedlackova E, Schutzner J, Zamecnik J. Expression of molecules of the Wnt pathway and of E-cadherin in the etiopathogenesis of human thymomas. Oncol Lett 2020; 19:2413-2421. [PMID: 32194741 PMCID: PMC7039126 DOI: 10.3892/ol.2020.11343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 12/10/2019] [Indexed: 01/22/2023] Open
Abstract
The molecular pathogenesis of thymoma remains largely unknown. It has been recently demonstrated, that activation of Wnt signaling pathway leads to increased incidence of thymoma in murine models. The present study investigated the activation of molecules of the Wnt signaling pathway in human thymoma. A total of 112 thymoma cases with complete clinical and follow-up data and 8 controls were included in the present study. Patients with thymoma and controls were examined immunohistochemically for β-catenin and E-cadherin. The mRNA expression levels of CTNNB1, CCND1, MYC, AXIN2 and CDH1 were analyzed by reverse transcription-quantitative PCR. Immunohistochemically, β-catenin and E-cadherin were overexpressed in neoplastic cells of all thymomas. In type A, B1 and non-invasive type B2 thymoma, both molecules were located in the cytoplasm, in contrast to invasive type B2 and B3 thymoma, where membranous immunopositivities were observed. mRNA expression levels of genes involved in the Wnt pathway and of E-cadherin were significantly increased in both type A and B thymoma compared with controls; increasing gradually from type B1 to B3, and with higher stage of disease. In recurrent type B thymoma, the mRNA expression of the molecules was significantly higher. Despite the activation of Wnt pathway in indolent type A thymoma, the negative feedback of the pathway was preserved by overexpression of inhibitory molecule axin2, which was not overexpressed in type B thymoma. In summary, the Wnt pathway was activated in human thymoma and may contribute to oncogenesis. Detection of molecules of the Wnt pathway may be of diagnostic and prognostic value.
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Affiliation(s)
- Prokop Vodicka
- Department of Pathology and Molecular Medicine, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czech Republic.,First Department of Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague 128 08, Czech Republic
| | - Lenka Krskova
- Department of Pathology and Molecular Medicine, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czech Republic
| | - Igor Odintsov
- Department of Pathology and Molecular Medicine, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czech Republic
| | - Ludmila Krizova
- Department of Oncology, First Faculty of Medicine, Charles University and General University Hospital, Prague 128 08, Czech Republic
| | - Eva Sedlackova
- Department of Oncology, First Faculty of Medicine, Charles University and General University Hospital, Prague 128 08, Czech Republic
| | - Jan Schutzner
- Third Department of Surgery, First Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czech Republic
| | - Josef Zamecnik
- Department of Pathology and Molecular Medicine, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague 150 06, Czech Republic
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Qiu X, Jiao J, Li Y, Tian T. Overexpression of FZD7 promotes glioma cell proliferation by upregulating TAZ. Oncotarget 2018; 7:85987-85999. [PMID: 27852064 PMCID: PMC5349891 DOI: 10.18632/oncotarget.13292] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/03/2016] [Indexed: 01/27/2023] Open
Abstract
Gliomas are the most prevalent type of primary brain tumors in adults, accounting for more than 40% of neoplasm in the central nervous system. Frizzled-7 (FZD7) is a seven-pass trans-membrane Wnt receptor that plays a critical role in the development of various tumors. In this study, we detected high-level FZD7 expression in glioma and its overexpression was associated with advanced tumor stage. In vitro functional assays showed that forced overexpression of FZD7 promoted proliferation of gliomas cells, whereas knockdown of endogenous FZD7 significantly suppressed proliferation ability of these cells. In a xenograft assay, FZD7 was also found to promote the growth of glioma cells. We further found that FZD7 could activate transcriptional coactivator with PDZ-binding motif (TAZ), and TAZ was required for FZD7 to promote cell proliferation in glioma. Furthermore, the univariate analysis of survival shows that glioma patients with high FZD7 expression have a shorter survival. In conclusion, our findings demonstrate that FZD7 may promote glioma cell proliferation via upregulation of TAZ.
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Affiliation(s)
- Xia Qiu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China.,Department of Medicine, Shangqiu Medical School, Shangqiu, Henan Province, China
| | - Jianguo Jiao
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Yidong Li
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Tian Tian
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China.,Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
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Ohnami S, Ohshima K, Nagashima T, Urakami K, Shimoda Y, Saito J, Naruoka A, Hatakeyama K, Mochizuki T, Serizawa M, Ohnami S, Kusuhara M, Yamaguchi K. Comprehensive characterization of genes associated with the TP53 signal transduction pathway in various tumors. Mol Cell Biochem 2017; 431:75-85. [PMID: 28258440 PMCID: PMC5487743 DOI: 10.1007/s11010-017-2977-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 02/16/2017] [Indexed: 01/08/2023]
Abstract
The TP53 signal transduction pathway is an attractive target for cancer treatments. In this study, we conducted a comprehensive molecular evaluation of 907 patients with cancer in Japan to identify genomic alterations in the TP53 pathway. TP53 mutations were frequently detected in many cancers, except melanoma, thymic tumors, gastrointestinal stromal tumors, and renal cancers. The frequencies of non-synonymous single nucleotide variants (SNVs) in the TP53 family members TP63 and TP73 were relatively low, although genes with increased frequencies of SNVs were as follows: PTEN (11.7%) in breast cancer, CDKN2A (11.1 and 9.6%) in pancreas and head and neck cancers, and ATM (18.0 and 11.1%) in liver and esophageal cancers. MDM2 expression was decreased or increased in patients with mutant or wild-type TP53, respectively. CDKN1A expression was increased with mutant TP53 in head and neck cancers. Moreover, TP63 overexpression was characteristically observed in squamous cell carcinomas of the lung, esophagus, and head and neck region. Additionally, overexpression of TP63 and TP73 was frequently observed in thymomas. Our results reveal a spectrum of genomic alterations in the TP53 pathway that is characteristic of many tumor types, and these data may be useful in the trials of targeted therapies.
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Affiliation(s)
- Shumpei Ohnami
- Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan.
| | - Keiichi Ohshima
- Medical Genetics Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Takeshi Nagashima
- Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
- SRL Inc, Tokyo, Japan
| | - Kenichi Urakami
- Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - Yuji Shimoda
- Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
- SRL Inc, Tokyo, Japan
| | - Junko Saito
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Akane Naruoka
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Keiichi Hatakeyama
- Medical Genetics Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Tohru Mochizuki
- Medical Genetics Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Masakuni Serizawa
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | - Sumiko Ohnami
- Cancer Diagnostics Research Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - Masatoshi Kusuhara
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
- Regional Resources Division, Shizuoka Cancer Center Research Institute, Shizuoka, Japan
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Bianchi F, Sommariva M, De Cecco L, Triulzi T, Romero-Cordoba S, Tagliabue E, Sfondrini L, Balsari A. Expression and prognostic significance of the autoimmune regulator gene in breast cancer cells. Cell Cycle 2016; 15:3220-3229. [PMID: 27753538 PMCID: PMC5176139 DOI: 10.1080/15384101.2016.1241918] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/09/2016] [Accepted: 09/21/2016] [Indexed: 10/20/2022] Open
Abstract
The autoimmune regulator gene (AIRE) plays a fundamental role in tolerance by promoting the expression of tissue-specific antigens in medullary thymic epithelial cells (mTECs). Recently, AIRE expression was detected also in human keratinocytes and in tumors originating in stratified epithelia. Here, we tested whether AIRE is expressed in cancer cells. We analyzed AIRE expression in cancer cases from The Cancer Genome Atlas (TCGA) RNA-seq dataset and we found association with better outcome. AIRE protein expression was verified by immunohistochemistry in a cohort of 39 human breast cancer specimens and its prognostic relevance was confirmed in microarray-based gene expression data set NKI-295 and KM-Plotter. Both in the RNA-seq and gene expression datasets analyzed, AIRE expression was an independent strong prognostic factor for relapse-free survival (RFS), particularly in estrogen receptor-positive tumors. Enrichment of translation-related pathways was observed in AIRE-expressing tumors by Ingenuity Pathway Analysis and a significant increase of cells in G1 phase and activation of caspase cascades was induced by AIRE transfection in breast cancer luminal cell lines, suggesting that AIRE-induced over-translation of proteins lead to cycle arrest and apoptosis. These data are the first to identify AIRE expression in breast cancer and an association with prognosis.
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Affiliation(s)
- Francesca Bianchi
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
- Molecular Targeting Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Michele Sommariva
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
- Molecular Targeting Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Loris De Cecco
- Department of Experimental Oncology and Molecular Medicine, Functional Genomics Core Facility, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Tiziana Triulzi
- Molecular Targeting Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sandra Romero-Cordoba
- Oncogenomics Laboratory, National Institute of Genomics Medicine, Mexico City, Mexico
| | - Elda Tagliabue
- Molecular Targeting Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Lucia Sfondrini
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
| | - Andrea Balsari
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
- Molecular Targeting Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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Wang CY, Tang MC, Chang WC, Furushima K, Jang CW, Behringer RR, Chen CM. PiggyBac Transposon-Mediated Mutagenesis in Rats Reveals a Crucial Role of Bbx in Growth and Male Fertility. Biol Reprod 2016; 95:51. [PMID: 27465138 PMCID: PMC5394979 DOI: 10.1095/biolreprod.116.141739] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/14/2016] [Indexed: 12/14/2022] Open
Abstract
Bobby sox homolog (Bbx) is an evolutionally conserved gene, but its biological function remains elusive. Here, we characterized defects of Bbx mutant rats that were created by PiggyBac-mediated insertional mutagenesis. Smaller body size and male infertility were the two major phenotypes of homozygous Bbx mutants. Bbx expression profile analysis showed that Bbx was more highly expressed in the testis and pituitary gland than in other organs. Histology and hormonal gene expression analysis of control and Bbx-null pituitary glands showed that loss of Bbx appeared to be dispensable for pituitary histogenesis and the expression of major hormones. BBX was localized in the nuclei of postmeiotic spermatids and Sertoli cells in wild-type testes, but absent in mutant testes. An increased presence of aberrant multinuclear giant cells and apoptotic cells was observed in mutant seminiferous tubules. TUNEL-positive cells costained with CREM (round spermatid marker), but not PLZF (spermatogonia marker), gammaH2Ax (meiotic spermatocyte marker), or GATA4 (Sertoli cell marker). Finally, there were drastically reduced numbers and motility of epididymal sperm from Bbx-null rats. These results suggest that loss of BBX induces apoptosis of postmeiotic spermatids and results in spermiogenesis defects and infertility.
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Affiliation(s)
- Chieh-Ying Wang
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Chu Tang
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan Laboratory Animal Center, National Yang-Ming University, Taipei, Taiwan
| | - Wen-Chi Chang
- Laboratory Animal Center, National Yang-Ming University, Taipei, Taiwan
| | - Kenryo Furushima
- Department of Genetics, University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | - Chuan-Wei Jang
- Department of Genetics, University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | - Richard R Behringer
- Department of Genetics, University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | - Chun-Ming Chen
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan Laboratory Animal Center, National Yang-Ming University, Taipei, Taiwan
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