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Iwamuro M, Takenaka R, Miyahara K, Okanoue S, Yoshioka M, Sakaguchi C, Yamamoto K, Kawai Y, Toyokawa T, Tanaka T, Otsuka M. Long-term monitoring of gastric mucosa-associated lymphoid tissue lymphoma in patients with extra copies of the MALT1 gene. Sci Rep 2024; 14:4953. [PMID: 38418651 PMCID: PMC10902346 DOI: 10.1038/s41598-024-55663-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/26/2024] [Indexed: 03/02/2024] Open
Abstract
The objective of this study was to clarify the long-term prognosis of patients with gastric mucosa-associated lymphoid tissue (MALT) lymphoma with additional copies of MALT1. In this multicenter retrospective study, we enrolled 145 patients with gastric MALT lymphoma who underwent fluorescence in situ hybridization (FISH) analysis to detect t(11;18) translocation. The patient cohort was divided into three groups: Group A (n = 87), comprising individuals devoid of the t(11;18) translocation or extra MALT1 copies; Group B (n = 27), encompassing patients characterized by the presence of the t(11;18) translocation; and Group C (n = 31), including patients with extra MALT1 copies. The clinical outcomes in each cohort were collected. Over the course of a mean follow-up of 8.5 ± 4.2 years, one patient died of progressive MALT lymphoma, while 15 patients died due to etiologies unrelated to lymphoma. The progression or relapse of MALT lymphoma was observed in 11 patients: three in Group A, two in Group B, and six in Group C. In Groups A, B, and C, the 10-year overall survival rates were 82.5%, 93.8%, and 86.4%, respectively, and the 10-year event-free survival rates were 96.1%, 96.0%, and 82.9%, respectively. The event-free survival rate in Group C was significantly lower than that in Group A. However, no differences were observed in the 10-year event-free survival rates among individuals limited to stage I or II1 disease (equivalent to excluding patients with stage IV disease in this study, as there were no patients with stage II2), with rates of 98.6%, 95.8%, and 92.3% for Groups A, B, and C, respectively. In conclusion, the presence of extra copies of MALT1 was identified as an inferior prognostic determinant of event-free survival. Consequently, trisomy/tetrasomy 18 may serve as an indicator of progression and refractoriness to therapeutic intervention in patients with gastric MALT lymphoma, particularly stage IV gastric MALT lymphoma.
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Affiliation(s)
- Masaya Iwamuro
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Ryuta Takenaka
- Department of Internal Medicine, Tsuyama Chuo Hospital, Tsuyama, 708‑0841, Japan
| | - Koji Miyahara
- Department of Internal Medicine, Hiroshima City Hospital, Hiroshima, 730-8518, Japan
| | - Shotaro Okanoue
- Department of Gastroenterology, Mitoyo General Hospital, Kanonji, 769‑1695, Japan
| | - Masao Yoshioka
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama, 700‑8511, Japan
| | - Chihiro Sakaguchi
- Department of Gastroenterology, Shikoku Cancer Center, Matsuyama, 791-0280, Japan
| | - Kumiko Yamamoto
- Department of Gastroenterology, Kagawa Prefectural Central Hospital, Takamatsu, 760‑8557, Japan
| | - Yoshinari Kawai
- Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi, 722‑8503, Japan
| | - Tatsuya Toyokawa
- Department of Gastroenterology, Fukuyama Medical Center, Fukuyama, 720‑8520, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Hospital, Okayama, 700-8558, Japan
| | - Motoyuki Otsuka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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2
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Ueda K, Murase T, Kawakita D, Nagao T, Kusafuka K, Nakaguro M, Urano M, Yamamoto H, Taguchi KI, Kano S, Tada Y, Tsukahara K, Okami K, Onitsuka T, Fujimoto Y, Sakurai K, Hanai N, Nagao T, Kawata R, Hato N, Nibu KI, Inagaki H. The Landscape of MYB/MYBL1- and Peri-MYB/MYBL1-Associated Rearrangements in Adenoid Cystic Carcinoma. Mod Pathol 2023; 36:100274. [PMID: 37423587 DOI: 10.1016/j.modpat.2023.100274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/03/2023] [Accepted: 06/30/2023] [Indexed: 07/11/2023]
Abstract
Approximately 60% of adenoid cystic carcinoma (AdCC) cases are positive for MYB::NFIB or MYBL1::NFIB, whereas MYB/MYBL1 oncoprotein, a key driver of AdCC, is overexpressed in most cases. Juxtaposition of superenhancer regions in NFIB and other genes into the MYB/MYBL1 locus is an attractive oncogenic hypothesis for AdCC cases, either negative or positive for MYB/MYBL1::NFIB. However, evidence supporting this hypothesis is insufficient. We examined 160 salivary AdCC cases for rearrangements in MYB/MYBL1 loci and peri-MYB/MYBL1 areas (centromeric and telomeric areas of 10 Mb each) using formalin-fixed, paraffin-embedded tumor sections. For the detection of the rearrangements, we employed conventional fluorescence in situ hybridization split and fusion assays and a 5 Mb fluorescence in situ hybridization split assay. The latter is a novel assay that enabled us to detect any possible splits within a 5 Mb distance of a chromosome. We found MYB/MYBL1- and peri-MYB/MYBL1-associated rearrangements in 149/160 patients (93%). AdCC cases positive for rearrangements in MYB, MYBL1, the peri-MYB area, and the peri-MYBL1 area numbered 105 (66%), 20 (13%), 19 (12%), and 5 (3%), respectively. In 24 peri-MYB/MYBL1 rearrangement-positive cases, 14 (58%) were found to have a juxtaposition of the NFIB or RAD51B locus into the MYB/MYBL1 loci. On comparing with a tumor group positive for MYB::NFIB, a hallmark of AdCC, other genetically classified tumor groups had similar features of overexpression of the MYB transcript and MYB oncoprotein as detected by semiquantitative RT-qPCR and immunohistochemistry, respectively. In addition, clinicopathological and prognostic features were similar among these groups. Our study suggests that peri-MYB/MYBL1 rearrangements may be a frequent event in AdCC and may result in biological and clinicopathological consequences comparable to MYB/MYBL1 rearrangements. The landscape of MYB/MYBL1 and peri-MYB/MYBL1 rearrangements shown here strongly suggests that juxtaposition of superenhancers into MYB/MYBL1 or peri-MYB/MYBL1 loci is an alteration that acts as a key driver for AdCC oncogenesis and may unify MYB/MYBL1 rearrangement-positive and negative cases.
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Affiliation(s)
- Kaori Ueda
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan; Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Takayuki Murase
- Department of Pathology and Molecular Diagnostics, 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
| | | | - Masato Nakaguro
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Makoto Urano
- Department of Diagnostic Pathology, Bantane Hospital, Fujita Health University School of Medicine, Nagoya, Japan
| | - Hidetaka Yamamoto
- Department of Anatomic Pathology, Graduate of School of Medical Science, Kyushu University, Fukuoka, Japan
| | - Ken-Ichi Taguchi
- Department of Pathology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Satoshi Kano
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuichiro Tada
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare, Mita Hospital, Tokyo, 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
| | - Tetsuro Onitsuka
- Division of Head and Neck Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yasushi Fujimoto
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Otolaryngology-Head and Neck Surgery, Aichi Medical University, Nagakute, Japan
| | - Kazuo Sakurai
- Department of Otorhinolaryngology, Fujita Health University, Okazaki Medical Center, Okazaki, Japan
| | - Nobuhiro Hanai
- Department of Head and Neck Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Toru Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
| | - Ryo Kawata
- Department of Otorhinolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Naohito Hato
- Department of Otolaryngology, Ehime University School of Medicine, Toon, 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, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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Requena EDA, Ocrospoma DV, Ruiz JS, De la Guerra Pancorvo A, Kajatt EA. Primary pulmonary lymphoma in Peru. Ecancermedicalscience 2023; 17:1559. [PMID: 37396099 PMCID: PMC10310327 DOI: 10.3332/ecancer.2023.1559] [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] [Received: 11/26/2022] [Indexed: 07/04/2023] Open
Abstract
Objective To describe the clinical features, imaging, pathology and management of patients with primary pulmonary lymphoma (PPL). Methodology This is a case series study involving a retrospective analysis of 24 patients diagnosed with PPL between the years 2000-2019 at Instituto Nacional de Enfermedades Neoplásicas in Lima, Perú. Results 73.9% of patients were male. Cough (78.3%) and weight loss (56.5%) were the most frequent clinical features. Dyspnoea and elevated values of DHL and B2 microglobulin were frequently altered in advanced stages. Diffuse large B cell lymphoma (DLBCL) represented 47.8% of the cases and the most common radiologic alterations were a mass (60%) and consolidation with air bronchogram (60%). The most utilised treatment was chemotherapy alone (60%). Three patients received only surgery. Median survival was 30 months. Five overall survival was 45%, and up to 60% in the case of mucosa-associated lymphoid tissue lymphoma. Conclusion PPL is infrequent. Clinical features are unspecific and the principal finding is a mass, nodule or consolidation with air bronchogram. Definitive diagnosis needs biopsy and immunohistochemistry. There is no standard treatment, it depends on histology type and stage.
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Affiliation(s)
- Elily Dianet Apumayta Requena
- Surgical Oncology Resident, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
- https://orcid.org/0000-0002-1828-7009
| | - Danery Valdez Ocrospoma
- Oncological Pathology Fellow, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
- https://orcid.org/0000-0002-7872-7950
| | | | | | - Edgar Amorin Kajatt
- Thoracic Surgical Oncology Unit, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
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Sakamoto Y, Ishida T, Masaki A, Murase T, Takeshita M, Muto R, Iwasaki H, Ito A, Kusumoto S, Nakano N, Tokunaga M, Yonekura K, Tashiro Y, Iida S, Utsunomiya A, Ueda R, Inagaki H. Clinical significance of TP53 mutations in adult T-cell leukemia/lymphoma. Br J Haematol 2021; 195:571-584. [PMID: 34405395 PMCID: PMC9291095 DOI: 10.1111/bjh.17749] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 12/25/2022]
Abstract
Adult T‐cell leukaemia/lymphoma (ATL) patients have a poor prognosis. Here, we investigated the impact of TP53 gene mutations on prognosis of ATL treated in different ways. Among 177 patients, we identified 47 single nucleotide variants or insertion‐deletions (SNVs/indels) of the TP53 gene in 37 individuals. TP53 copy number variations (CNVs) were observed in 38 patients. Altogether, 67 of 177 patients harboured TP53 SNVs/indels or TP53 CNVs, and were categorized as having TP53 mutations. In the entire cohort, median survival of patients with and without TP53 mutations was 1·0 and 6·7 years respectively (P < 0·001). After allogeneic haematopoietic stem cell transplantation (HSCT), median survival of patients with (n = 16) and without (n = 29) TP53 mutations was 0·4 years and not reached respectively (P = 0·001). For patients receiving mogamulizumab without allogeneic HSCT, the median survival from the first dose of antibody in patients with TP53 mutations (n = 27) was only 0·9 years, but 5·1 years in those without (n = 42; P < 0·001). Thus, TP53 mutations are associated with unfavourable prognosis of ATL, regardless of treatment strategy. The establishment of alternative modalities to overcome the adverse impact of TP53 mutations in patients with ATL is required.
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Affiliation(s)
- Yuma Sakamoto
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Takashi Ishida
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ayako Masaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Takayuki Murase
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Morishige Takeshita
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Reiji Muto
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hiromi Iwasaki
- Department of Hematology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Asahi Ito
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Shigeru Kusumoto
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Nobuaki Nakano
- Department of Hematology, Imamura General Hospital, Kagoshima, Japan
| | - Masahito Tokunaga
- Department of Hematology, Imamura General Hospital, Kagoshima, Japan
| | - Kentaro Yonekura
- Department of Dermatology, Imamura General Hospital, Kagoshima, Japan
| | - Yukie Tashiro
- Department of Pathology, Imamura General Hospital, Kagoshima, Japan
| | - Shinsuke Iida
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Atae Utsunomiya
- Department of Hematology, Imamura General Hospital, Kagoshima, Japan
| | - Ryuzo Ueda
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Tumor Immunology, School of Medicine, Aichi Medical University, Nagakute, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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Sanguedolce F, Zanelli M, Zizzo M, Bisagni A, Soriano A, Cocco G, Palicelli A, Santandrea G, Caprera C, Corsi M, Cerrone G, Sciaccotta R, Martino G, Ricci L, Sollitto F, Loizzi D, Ascani S. Primary Pulmonary B-Cell Lymphoma: A Review and Update. Cancers (Basel) 2021; 13:cancers13030415. [PMID: 33499258 PMCID: PMC7865219 DOI: 10.3390/cancers13030415] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/10/2021] [Accepted: 01/19/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The group of B-cell lymphomas primarily involving the lung encompasses different histological entities with distinct biological aspects, while sharing some clinical and radiological features related to their common anatomic site of occurrence. Recent molecular advances in the molecular genetics of these lesions have substantially improved of our understanding of the mechanisms of lymphomagenesis, adding novel information to histology in order to better characterize and manage these diseases. This review summarizes the available clinical, radiological, pathological, and molecular data on primary pulmonary B-cell lymphomas, discusses the mechanisms of lymphomagenesis, and highlights the role of a multi-disciplinary management in overcoming the diagnostic and therapeutic challenges in this setting. Abstract Primary pulmonary B-cell lymphomas (PP-BCLs) comprise a group of extranodal non-Hodgkin lymphomas of B-cell origin, which primarily affect the lung without evidence of extrapulmonary disease at the time of diagnosis and up to 3 months afterwards. Primary lymphoid proliferations of the lung are most often of B-cell lineage, and include three major entities with different clinical, morphological, and molecular features: primary pulmonary marginal zone lymphoma of mucosa-associated lymphoid tissue (PP-MZL, or MALT lymphoma), primary pulmonary diffuse large B cell lymphoma (PP-DLBCL), and lymphomatoid granulomatosis (LYG). Less common entities include primary effusion B-cell lymphoma (PEL) and intravascular large B cell lymphoma (IVLBCL). A proper workup requires a multidisciplinary approach, including radiologists, pneumologists, thoracic surgeons, pathologists, hemato-oncologists, and radiation oncologists, in order to achieve a correct diagnosis and risk assessment. Aim of this review is to analyze and outline the clinical and pathological features of the most frequent PP-BCLs, and to critically analyze the major issues in their diagnosis and management.
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Affiliation(s)
- Francesca Sanguedolce
- Pathology Unit, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Foggia, 71122 Foggia, Italy
- Correspondence: ; Tel.: +39-0881-736315
| | - Magda Zanelli
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy; (M.Z.); (A.B.); (A.P.); (G.S.)
| | - Maurizio Zizzo
- Surgical Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy;
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, 41121 Modena, Italy
| | - Alessandra Bisagni
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy; (M.Z.); (A.B.); (A.P.); (G.S.)
| | - Alessandra Soriano
- Gastroenterology, Division and Inflammatory Bowel Disease Center, Department of Internal Medicine, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy;
| | - Giorgia Cocco
- Radiotherapy Unit, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Foggia, 71122 Foggia, Italy;
| | - Andrea Palicelli
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy; (M.Z.); (A.B.); (A.P.); (G.S.)
| | - Giacomo Santandrea
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy; (M.Z.); (A.B.); (A.P.); (G.S.)
| | - Cecilia Caprera
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Matteo Corsi
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Giulia Cerrone
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Raffaele Sciaccotta
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Giovanni Martino
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Linda Ricci
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
| | - Francesco Sollitto
- Institute of Thoracic Surgery, University of Foggia, 71122 Foggia, Italy; (F.S.); (D.L.)
| | - Domenico Loizzi
- Institute of Thoracic Surgery, University of Foggia, 71122 Foggia, Italy; (F.S.); (D.L.)
| | - Stefano Ascani
- Pathology Unit, Azienda Ospedaliera S. Maria di Terni, University of Perugia, 05100 Terni, Italy; (C.C.); (M.C.); (G.C.); (R.S.); (G.M.); (L.R.); (S.A.)
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Sakamoto Y, Ishida T, Masaki A, Takeshita M, Iwasaki H, Yonekura K, Tashiro Y, Ito A, Kusumoto S, Utsunomiya A, Iida S, Ueda R, Inagaki H. Clinical significance of CD28 gene-related activating alterations in adult T-cell leukaemia/lymphoma. Br J Haematol 2020; 192:281-291. [PMID: 33205842 PMCID: PMC7894310 DOI: 10.1111/bjh.17211] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/23/2020] [Indexed: 12/21/2022]
Abstract
Multiple oncogenic events are involved in the development of adult T-cell leukaemia/lymphoma (ATL). Because CD28 plays a pivotal role in T-cell activation, we focused on alterations of the CD28 gene in ATL. We found multiple genetic abnormalities related to CD28 among the 144 patients enrolled in the present study. These involved gene fusions with the cytotoxic T-lymphocyte-associated antigen 4 or the inducible T-cell co-stimulator in 14 patients (10%), CD28-activating mutations in 3 (2%), and CD28 copy number variations in 34 (24%). Patients with such CD28 gene alterations were significantly younger than those without. In patients not receiving allogeneic haematopoietic stem cell transplantation, those with CD28 gene alterations tended to have a worse prognosis than those without. Finally, patients with chronic or smouldering ATL subtypes with CD28 gene alterations had a significantly worse prognosis than those without. These findings indicate that ATL, especially chronic or smouldering subtypes, have a more aggressive clinical course and are more refractory to conventional chemotherapies or mogamulizumab if they harbour CD28 gene alterations, likely because of continuous, prolonged, and enhanced CD28 activatory signalling. Novel treatment strategies to overcome the effects of these CD28 gene alterations are warranted.
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Affiliation(s)
- Yuma Sakamoto
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Takashi Ishida
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ayako Masaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Morishige Takeshita
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hiromi Iwasaki
- Department of Hematology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Kentaro Yonekura
- Department of Dermatology, Imamura General Hospital, Kagoshima, Japan
| | - Yukie Tashiro
- Department of Pathology, Imamura General Hospital, Kagoshima, Japan
| | - Asahi Ito
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Shigeru Kusumoto
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Atae Utsunomiya
- Department of Hematology, Imamura General Hospital, Kagoshima, Japan
| | - Shinsuke Iida
- Department of Hematology and Oncology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Ryuzo Ueda
- Department of Tumor Immunology, School of Medicine, Aichi Medical University, Nagakute, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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7
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Murase T, Ri M, Narita T, Fujii K, Masaki A, Iida S, Inagaki H. Immunohistochemistry for identification of CCND1, NSD2, and MAF gene rearrangements in plasma cell myeloma. Cancer Sci 2019; 110:2600-2606. [PMID: 31218784 PMCID: PMC6676137 DOI: 10.1111/cas.14109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/01/2019] [Accepted: 06/17/2019] [Indexed: 01/03/2023] Open
Abstract
The t(11;14)/CCND1‐IGH, t(4;14)/NSD2(MMSET)‐IGH, and t(14;16)/IGH‐MAF gene rearrangements detected by fluorescence in situ hybridization (FISH) are used for risk stratification in patients with multiple myeloma (MM). Compared with conventional FISH techniques using fresh cells, immunohistochemistry (IHC) is much more cost‐ and time‐efficient, and can be readily applied to routinely prepared formalin‐fixed, paraffin‐embedded (FFPE) materials. In this study, we performed tissue FISH and IHC employing FFPE specimens, and examined the usefulness of IHC as a tool for detecting CCND1,NSD2, and MAF gene rearrangements. CD138 signals were used to identify plasma cells in tissue FISH and IHC analyses. With cohort 1 (n = 70), we performed tissue FISH and subsequently IHC, and determined IHC cut‐off points. In this cohort, the sensitivity and specificity for the 3 molecules were ≥.90 and ≥.96, respectively. With cohort 2, using MM cases with an unknown gene status (n = 120), we performed IHC, and the gene status was estimated using the cut‐off points determined with cohort 1. The subsequent FISH analysis showed that the sensitivity and specificity for the 3 molecules were ≥.92 and ≥.98, respectively. CCND1, NSD2, and MAF gene rearrangements were estimated accurately by IHC, suggesting that conventional FISH assays can be replaced by IHC.
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Affiliation(s)
- Takayuki Murase
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masaki Ri
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tomoko Narita
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Keiichiro Fujii
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Ayako Masaki
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shinsuke Iida
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Iwamuro M, Takenaka R, Nakagawa M, Moritou Y, Saito S, Hori S, Inaba T, Kawai Y, Toyokawa T, Tanaka T, Yoshino T, Okada H. Management of gastric mucosa-associated lymphoid tissue lymphoma in patients with extra copies of the MALT1 gene. World J Gastroenterol 2017; 23:6155-6163. [PMID: 28970731 PMCID: PMC5597507 DOI: 10.3748/wjg.v23.i33.6155] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/21/2017] [Accepted: 08/08/2017] [Indexed: 02/07/2023] Open
Abstract
AIM To identify the clinical features of gastric mucosa-associated lymphoid tissue (MALT) lymphoma with extra copies of MALT1.
METHODS This is a multi-centered, retrospective study. We reviewed 146 patients with MALT lymphoma in the stomach who underwent fluorescence in situ hybridization analysis for t(11;18) translocation. Patients were subdivided into patients without t(11;18) translocation or extra copies of MALT1 (Group A, n = 88), patients with t(11;18) translocation (Group B, n = 27), and patients with extra copies of MALT1 (Group C, n = 31). The clinical background, treatment, and outcomes of each group were investigated.
RESULTS Groups A and C showed slight female predominance, whereas Group B showed slight male predominance. Mean ages and clinical stages at lymphoma diagnosis were not different between groups. Complete response was obtained in 61 patients in Group A (69.3%), 22 in Group B (81.5%), and 21 in Group C (67.7%). Helicobacter pylori (H. pylori) eradication alone resulted in complete remission in 44 patients in Group A and 13 in Group C. In Group B, 14 patients underwent radiotherapy alone, which resulted in lymphoma disappearance. Although the difference was not statistically significant, event-free survival in Group C tended to be inferior to that in Group A (P = 0.10).
CONCLUSION Patients with t(11;18) translocation should be treated differently from others. Patients with extra copies of MALT1 could be initially treated with H. pylori eradication, similar to patients without t(11;18) translocation or extra copies of MALT1.
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MESH Headings
- Aged
- Aneuploidy
- Anti-Bacterial Agents/therapeutic use
- Antineoplastic Agents/therapeutic use
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 18/genetics
- Disease-Free Survival
- Female
- Gastric Mucosa/microbiology
- Gastric Mucosa/pathology
- Gastric Mucosa/radiation effects
- Helicobacter Infections/drug therapy
- Helicobacter Infections/microbiology
- Helicobacter pylori/drug effects
- Helicobacter pylori/isolation & purification
- Humans
- In Situ Hybridization, Fluorescence
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/microbiology
- Lymphoma, B-Cell, Marginal Zone/mortality
- Lymphoma, B-Cell, Marginal Zone/therapy
- Male
- Middle Aged
- Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein/genetics
- Oncogene Proteins, Fusion/genetics
- Radiotherapy/methods
- Retrospective Studies
- Sex Factors
- Stomach Neoplasms/genetics
- Stomach Neoplasms/microbiology
- Stomach Neoplasms/mortality
- Stomach Neoplasms/therapy
- Translocation, Genetic
- Treatment Outcome
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Affiliation(s)
- Masaya Iwamuro
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Ryuta Takenaka
- Department of Internal Medicine, Tsuyama Chuo Hospital, Tsuyama 7080841, Japan
| | - Masahiro Nakagawa
- Department of Internal Medicine, Hiroshima City Hospital, Hiroshima 730-8518, Japan
| | - Yuki Moritou
- Department of Gastroenterology, Mitoyo General Hospital, Kanonji 7691695, Japan
| | - Shunsuke Saito
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama 7008511, Japan
| | - Shinichiro Hori
- Department of Gastroenterology, Shikoku Cancer Center, Matsuyama 791-0280, Japan
| | - Tomoki Inaba
- Department of Gastroenterology, Kagawa Prefectural Central Hospital, Takamatsu 7608557, Japan
| | - Yoshinari Kawai
- Department of Gastroenterology, Onomichi Municipal Hospital, Onomichi 7228503, Japan
| | - Tatsuya Toyokawa
- Department of Gastroenterology, Fukuyama Medical Center, Fukuyama 7208520, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Hospital, Okayama 700-8558, Japan
| | - Tadashi Yoshino
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
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10
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Abstract
Extranodal marginal zone lymphoma of the mucosa-associated lymphoid tissue (MALT) is an indolent lymphoma arising in extranodal sites. Several infectious agents and autoimmune disorders have been implicated in its pathogenesis. The stomach represents the most common and best-studied organ involved by MALT lymphoma and its development is strongly associated with Helicobacter pylori (Hp) infection. MALT lymphomas are characterized by an indolent clinical course and excellent survival in most cases, independently of the treatment delivered. Recent progress in the knowledge of the etiology and the cellular and molecular pathological events related to MALT lymphomas allowed us to improve our clinical understanding of this disease entity and to better define treatment strategies.
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11
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Ito Y, Ishibashi K, Masaki A, Fujii K, Fujiyoshi Y, Hattori H, Kawakita D, Matsumoto M, Miyabe S, Shimozato K, Nagao T, Inagaki H. Mammary analogue secretory carcinoma of salivary glands: a clinicopathologic and molecular study including 2 cases harboring ETV6-X fusion. Am J Surg Pathol 2015; 39:602-10. [PMID: 25651470 DOI: 10.1097/pas.0000000000000392] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Mammary analogue secretory carcinoma (MASC) is a recently described low-grade carcinoma with morphologic and genetic similarity, including ETV6-NTRK3 fusion, to secretory carcinoma of the breast. ETV6 is frequently involved in other epithelial and nonepithelial tumors, and many fusion partners of ETV6 have been reported. In the present study, 14 Japanese MASC cases were clinicopathologically and molecularly analyzed. The median age of the patients was 39 years, and the male:female ratio was 6:8. All cases showed histopathologic findings compatible with those previously described for MASC and harbored an ETV6 split as visualized by fluorescence in situ hybridization. Two cases showed thick fibrous septa and invasive features including vascular or perineural tumor involvement, findings that are rare in MASC. In addition, in these 2 cases, non-NTRK3 genes appeared to fuse with ETV6 (ETV6-X fusion). NTRK1 and NTRK2, both members of the NTRK family, were not involved. Of the 14 MASC cases, the ETV6-NTRK3 fusion transcript was positive in 6 cases, and the relative expression level of the ETV6-NTRK3 fusion transcript was variable, ranging from 1 to 5.8. Results of the present study of MASC suggest that (1) ETV6 occasionally fuses with unknown non-NTRK3 genes, (2) ETV6-X cases might have an invasive histology, (3) for molecular diagnosis of MASC, fluorescence in situ hybridization to detect ETV6 splits is the method of choice, and (4) the expression level of the ETV6-NTRK3 fusion transcript is considerably variable. These findings provide a novel insight into the oncogenesis, histopathology, diagnosis, treatment, and prognosis of this newly recognized carcinoma.
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Affiliation(s)
- Yohei Ito
- Departments of *Pathology and Molecular Diagnostics ‡Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences †Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya §Department of Diagnostic Pathology, Kochi Health Sciences Center, Kochi ∥Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
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12
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Radical surgery may be not an optimal treatment approach for pulmonary MALT lymphoma. Tumour Biol 2015; 36:6409-16. [PMID: 25801243 DOI: 10.1007/s13277-015-3329-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 03/12/2015] [Indexed: 12/16/2022] Open
Abstract
Primary pulmonary MALT lymphoma is a rare disease, and no standard treatments have been defined yet. In this study, 38 consecutive patients from single center were reviewed. Among 25 patients with localized disease, radical surgery were performed in 12 patients, and the other 13 patients had chemotherapy combined with (7 patients) or without (6 patients) radiotherapy. No significant difference in overall survival (OS) was found between patients who received surgery or not; however, patients treated with chemotherapy had superior progression-free survival (PFS) than those treated with upfront surgery (P = 0.032). Among the 12 patients who received radical surgery, 7 were given adjuvant chemotherapy and 1 patient had consolidation radiotherapy. No significant differences in PFS and OS exist between those who received adjuvant treatment or not (P > 0.05). For patients who received chemotherapy, PFS and OS were significantly better for those treated with cyclophosphamide-based therapy than fludarabine-based therapy. At a median follow-up time of 61.1 months, 5- and 10-year PFS rate was 70.0 and 43.0 %, respectively, and 5- and 10-year OS rate was both 81.0 %. In conclusion, we confirmed the indolent behavior and favorable outcome of this disease. In order to preserve lung function and reduce the risks associated with surgery, radiotherapy or rituximab in combination with alkylating drug-based chemotherapy should be considered as first-line option for pulmonary MALT lymphoma.
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13
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Abstract
Thymic mucoepidermoid carcinoma (TMEC) is a vanishingly rare entity that usually presents as low to intermediate grade MEC and carries a better prognosis when compared with other poorly differentiated thymic carcinomas. The recently described fusions, t(11;19)(q21;p13) CREB (cAMP response element-binding protein)-regulated transcription coactivator 1 and MAML2, mastermind-like gene 2 (CRTC1-MAML2) and t(11:15)(q21;q26) CRTC3-MAML2 characterize a considerable proportion of MEC examples arising from a variety of anatomical sites. Recent data point out that the aberrant proteins produced by this fusion drive oncogenesis by disrupting the cAMP/CREB and NOTCH1 pathways. To date, only 2 TMEC cases have been reported to have MAML2 rearrangements, a feature that was found to be absent in TMEC mimics. These findings led the authors to recommend this test as a diagnostic tool in the differential diagnosis for thymic carcinoma. Herein, we present a case of TMEC arising in a 58-year-old woman, which was predominantly cystic with intracystic papillary formations composed of a mixture of mucinous cells and intermediate/epidermoid eosinophilic cells. This case was negative for CTCR1-MAML2 and CTCR3-MAML2 fusion transcripts by reverse transcriptase polymerase chain reaction and lacked a MAML2 rearrangement by fluorescence in situ hybridization. We report a CTCR1/3-MAML2 fusion and MAML2 rearrangement–negative TMEC, indicating that a different molecular pathway must be involved in the generation of these tumors. The possibility of fusion-negative TMEC should be taken into consideration in the differential diagnosis of a thymic carcinoma.
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Affiliation(s)
| | - Hiroshi Inagaki
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - James Mueller
- Baystate Medical Center–Tufts University School of Medicine, Springfield, MA, USA
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14
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Urano M, Nagao T, Miyabe S, Ishibashi K, Higuchi K, Kuroda M. Characterization of mammary analogue secretory carcinoma of the salivary gland: discrimination from its mimics by the presence of the ETV6-NTRK3 translocation and novel surrogate markers. Hum Pathol 2014; 46:94-103. [PMID: 25456394 DOI: 10.1016/j.humpath.2014.09.012] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/19/2014] [Accepted: 09/24/2014] [Indexed: 11/15/2022]
Abstract
Mammary analogue secretory carcinoma (MASC) is a recently recognized salivary gland tumor harboring an ETV6-NTRK3 translocation similar to secretory carcinoma of the breast. Histologically, MASC mimics papillary-cystic, microcystic, and follicular-type acinic cell carcinoma (AciCC) and low-grade cribriform cystadenocarcinoma (LGCCC) of the salivary gland. Using histology, immunohistochemistry (IHC), and molecular genetic techniques, we reevaluated 18 cases originally diagnosed as AciCC between 1993 and 2012. The last of these methods was used to detect the ETV6-NTRK3 translocation. The results reconfirmed 6 cases as AciCC (3 men; average age, 63 years) and helped us reclassify 10 cases as MASC (6 men; mean age, 46 years) and 2 as LGCCC (2 women; mean age, 48 years). Using IHC, we identified the 3 histologic types according to the expression patterns of vimentin, high-molecular-weight cytokeratin, cytokeratin 19, S-100, mammaglobin, MUC1, GATA-binding protein 3, adipophilin, α-amylase, DOG-1, SOX-10, and p63. The number of tumors diagnosed as MASC indicates that AciCC includes bona fide MASC cases. Because differential diagnosis among zymogen granule-poor AciCC, MASC, and LGCCC tumors is challenging, we recommend using molecular genetic tests for ETV6-NTRK3 for accurate diagnosis. Furthermore, detailed analyses of hematoxylin and eosin-stained tissues and IHC studies using the markers described here should be incorporated into routine practices.
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Affiliation(s)
- Makoto Urano
- Department of Diagnostic Pathology, Fujita Health University, School of Medicine, Aichi, 470-1192, Japan.
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, 160-0023, Japan
| | - Satoru Miyabe
- Department of Maxillofacial Surgery, Aichi-Gakuin University, School of Dentistry, Aichi, 464-8651, Japan
| | - Kenichiro Ishibashi
- Department of Maxillofacial Surgery, Aichi-Gakuin University, School of Dentistry, Aichi, 464-8651, Japan
| | - Kayoko Higuchi
- Section of Anatomic Pathology, Aizawa Hospital, Nagano, 390-8510, Japan
| | - Makoto Kuroda
- Department of Diagnostic Pathology, Fujita Health University, School of Medicine, Aichi, 470-1192, Japan
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15
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Thieblemont C, Bertoni F, Copie-Bergman C, Ferreri AJ, Ponzoni M. Chronic inflammation and extra-nodal marginal-zone lymphomas of MALT-type. Semin Cancer Biol 2014; 24:33-42. [DOI: 10.1016/j.semcancer.2013.11.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 11/23/2013] [Accepted: 11/29/2013] [Indexed: 12/26/2022]
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16
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Miyabe K, Masaki A, Nakazawa T, Ando T, Hayashi K, Naitoh I, Okumura F, Shimizu S, Kondo H, Yoshida M, Yamashita H, Umemura S, Hori Y, Ge Y, Ohara H, Joh T, Inagaki H. Histiocytic sarcoma of the bile duct. Intern Med 2014; 53:707-12. [PMID: 24694481 DOI: 10.2169/internalmedicine.53.1384] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
An 80-year-old man was admitted with anorexia, a high fever and general icterus. Laboratory examinations revealed remarkable inflammation and elevation of liver/biliary enzymes. Computed tomography (CT) showed a high-density lesion in the bile duct, and endoscopic retrograde cholangiopancreatography (ERCP) disclosed an oval filling defect mimicking choledocholithiasis. Plastic stents were inserted to treat the acute cholangitis; however, the patient's symptoms recurred. An erythematous hypervascular mass obtained with a balloon catheter contained numerous pleomorphic histiocytic cells with eosinophilic cytoplasm, remarkable anisonucleosis and occasional mitoses. A diagnosis of histiocytic sarcoma (HS) was made based on the results of intensive immunohistochemistry. Monoclonal rearrangement of the IGH and TCRG genes, IGH split and IGH/BCL2 fusion was negative, although polysomy 8, 14, and 18 was detected. The patient was treated conservatively and died of the disease 20 months after the initial diagnosis. To the best of our knowledge, this is the first case of bile duct HS. This case, which involved numerical alterations of chromosomes, presented with CT and ERCP findings similar to those of choledocholithiasis.
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Affiliation(s)
- Katsuyuki Miyabe
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
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17
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Tabata R, Tabata C, Nagai T, Yasumizu R, Kojima M. Nodal marginal zone B cell lymphoma with prominent follicular colonization with deletion of chromosome 13. Pathol Res Pract 2012; 208:679-82. [PMID: 22963839 DOI: 10.1016/j.prp.2012.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 07/23/2012] [Accepted: 07/24/2012] [Indexed: 11/25/2022]
Abstract
Nodal marginal zone B cell lymphoma is a rare type of malignant lymphoma and appears to be heterogeneous. Here we report a 60-year-old woman with stage I splenic type of nodal marginal zone B cell lymphoma with prominent follicular colonization. She was treated only by radiation therapy, and remained free of disease on examination for 4 years. The lymph node cells showed an abnormal chromosome of deletion 13, although neither bone marrow cells nor peripheral blood cells demonstrated the same abnormal chromosome. This type of chromosomal abnormality has not been previously reported and may be related to good prognosis in the present case.
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Affiliation(s)
- Rie Tabata
- Department of Internal Medicine, Hyogo Prefectural Tsukaguchi Hospital, Hyogo, Japan.
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18
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Noda H, Okumura Y, Nakayama T, Miyabe S, Fujiyoshi Y, Hattori H, Shimozato K, Inagaki H. Clinicopathological significance of MAML2 gene split in mucoepidermoid carcinoma. Cancer Sci 2012; 104:85-92. [PMID: 23035786 DOI: 10.1111/cas.12039] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 09/12/2012] [Accepted: 09/13/2012] [Indexed: 12/25/2022] Open
Abstract
CRTC1-MAML2 and CRTC3-MAML2 fusions have been associated with favorable clinicopathological features of mucoepidermoid carcinomas. However, the significance of the MAML2 gene split has not been fully clarified. In the present study, 95 mucoepidermoid carcinomas (paraffin-embedded materials) were analyzed for CRTC1-MAML2 and CRTC3-MAML2 fusions by RT-PCR and for the MAML2 gene split by FISH. Quantitative RT-PCR for the CRTC1-MAML2 transcript was performed in selected cases. MLL gene involvement, which has been reported in some leukemia cases, was examined by FISH in fusion partner-unknown cases. CRTC1-MAML2 and CRTC3-MAML2 fusions were detected in 37 and 6 cases, respectively. The MAML2 gene split was detected in 62 cases, which included all CRTC1/3-MAML2 fusion-positive cases. The level of CRTC1-MAML2 transcript expression was highly variable, and its clinicopathological impact was unclear. The MLL gene split was not detected. Mucoepidermoid carcinomas negative for CRTC1/3-MAML2 and positive for the MAML2 gene split (n = 19) showed favorable clinicopathological tumor features similar to those positive for CRTC1/3-MAML2 fusions. Compared with negative cases (n = 33), mucoepidermoid carcinomas positive for the MAML2 split (n = 62) were associated with lower patient age, a mild female predilection, a smaller tumor size, less frequent nodal metastasis, a lower clinical stage, a lower histological grade, and longer overall and disease-free survival. The MAML2 gene split emerged as an independent prognostic factor for both overall and disease-free survival in multivariate prognostic analysis. The presence of the MAML2 gene split defines a distinct mucoepidermoid carcinoma subset that is associated clinicopathologically with favorable tumor features.
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Affiliation(s)
- Haruna Noda
- Department of Anatomic Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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19
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Kominato S, Nakayama T, Sato F, Yamada S, Xia H, Fujiyoshi Y, Hattori H, Inagaki H. Characterization of chromosomal aberrations in thymic MALT lymphoma. Pathol Int 2012; 62:93-8. [PMID: 22243778 DOI: 10.1111/j.1440-1827.2011.02764.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Mucosa-associated lymphoid tissue (MALT) lymphoma arising in the thymus is a rare disorder that shows a strong association with autoimmune disease. Several MALT-lymphoma-specific and -associated chromosomal abnormalities, including t(11;18), t(14;18), t(1;14), trisomy 3 and trisomy 18, are known to occur. The former translocation results in apoptosis inhibitor 2 gene (API2)-MALT lymphoma-associated translocation 1 (MALT1) fusion. In this study, we examined 14 cases of thymic MALT lymphomas for API2-MALT1 fusion using multiplex reverse transcription polymerase chain reaction and looked for trisomy 3, trisomy 18 and abnormalities of MALT1 and IGH genes using fluorescence in situ hybridization. Thymic MALT lymphoma cases had a high frequency of trisomy 3 (7/14 cases), a very low incidence of trisomy 18 (1/14) and no detectable MALT1-associated (0/13) or IGH-associated (0/13) gene abnormalities including t(11;18). A review of the literature showed that the pattern of chromosomal aberrations in thymic MALT lymphoma was similar to those of thyroid and salivary gland MALT lymphomas. Although frequently detected, trisomy 3 was not associated with any of the clinicopathological factors analyzed, suggesting that trisomy 3 may play a role in lymphoma development. In conclusion, the present study showed that thymic MALT lymphoma has a characteristic pattern of chromosomal aberrations that may be similar to those of other autoimmune-associated MALT lymphomas.
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Affiliation(s)
- Satoru Kominato
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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20
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van Krieken JH. New developments in the pathology of malignant lymphoma. A review of the literature published from February 2011 to August 2011. J Hematop 2011. [DOI: 10.1007/s12308-011-0112-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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