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Liao Q, Yu Q, Yu C, Zhang M, Xiao E. Pulmonary mucosa-associated lymphoid tissue lymphoma: insights from a 15-year study at a single institution involving 14 clinical cases. World J Surg Oncol 2024; 22:219. [PMID: 39182101 PMCID: PMC11344348 DOI: 10.1186/s12957-024-03500-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 08/13/2024] [Indexed: 08/27/2024] Open
Abstract
OBJECTIVE This study aims to delineate the clinical presentations, imaging features, pathological characteristics, therapeutic strategies, and outcomes of pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma, thereby deducing the most efficacious treatment paradigm. METHODS We conducted a retrospective review of 14 patients diagnosed with pulmonary MALT lymphoma at the Second Xiangya Hospital, affiliated with Central South University, between September 2007 and September 2022, focusing on their clinical profiles, diagnostic pathways, treatment modalities, and prognostic outcomes. RESULTS The cohort's median age was 60 years (ranging from 44 to 81 years), with 64.29% being female and only 14.29% having a history of smoking. The incidence of immunodeficiency diseases among the patients was notably low. Imaging typically revealed pulmonary nodules and masses, with air bronchogram signs evident in 9 patients and pleural effusion in 2. CD20 expression was markedly positive across the board in all patients with pulmonary MALT lymphoma. Among the 12 patients who received intervention, 6 were treated with chemotherapy alone, 2 underwent surgical resection, and 4 benefitted from a combined approach of chemotherapy and surgery. Over the monitoring period, 2 patients succumbed to their disease. The estimated 5- and 10-year overall survival (OS) rates were 91.67% and 76.39%, respectively, with the median progression-free survival (PFS) reaching 7 years. Comparative analysis revealed no significant disparity in PFS between patients treated exclusively with chemotherapy and those receiving both chemotherapy and surgical intervention (P = 0.22). CONCLUSION Pulmonary MALT lymphoma typically exhibits a slow course, with gradual progression and a predominantly positive prognosis. Chemotherapy emerges as the preferred therapeutic option for managing this malignancy.
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Affiliation(s)
- Qiuling Liao
- Department of Radiology, The Second Xiangya Hospital of Central South University, No. 139, Renmin Middle Road, Changsha City, 410011, Hunan Province, China
| | - Qilin Yu
- Department of Radiology, The Second Xiangya Hospital of Central South University, No. 139, Renmin Middle Road, Changsha City, 410011, Hunan Province, China
| | - Cheng Yu
- Department of Radiology, The Second Xiangya Hospital of Central South University, No. 139, Renmin Middle Road, Changsha City, 410011, Hunan Province, China
| | - Minping Zhang
- Department of Radiology, The Second Xiangya Hospital of Central South University, No. 139, Renmin Middle Road, Changsha City, 410011, Hunan Province, China
| | - Enhua Xiao
- Department of Radiology, The Second Xiangya Hospital of Central South University, No. 139, Renmin Middle Road, Changsha City, 410011, Hunan Province, China.
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2
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Jiang KY, Qi LL, Kang FB, Wang L. The intriguing roles of Siglec family members in the tumor microenvironment. Biomark Res 2022; 10:22. [PMID: 35418152 PMCID: PMC9008986 DOI: 10.1186/s40364-022-00369-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
Sialic acid-binding receptors are expressed on the surfaces of a variety of immune cells and have complex and diverse immunoregulatory functions in health and diseases. Recent studies have shown that Siglecs could play diverse immune and nonimmune regulatory roles in the tumor microenvironment (TME) and participate in tumor progression through various mechanisms, such as regulating tumor growth and metastasis, mediating the inflammatory response, and promoting tumor immune escape, thereby affecting the prognoses and outcomes of patients. However, depending on the cell type in which they are expressed, each Siglec member binds to corresponding ligands in the microenvironment milieu to drive diverse cell physiological and pathological processes in tumors. Therefore, we herein summarize the expression spectra and functions of the Siglec family in human diseases, particularly cancer, and highlight the possibility of therapeutic interventions targeting the TME in the future.
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Affiliation(s)
- Kui-Ying Jiang
- Department of Orthopedic Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Li-Li Qi
- Experimental Center for Teaching of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Fu-Biao Kang
- The Liver Disease Center of PLA, the 980Th Hospital of PLA Joint Logistics Support Force, Shijiazhuang, Hebei, People's Republic of China.
| | - Ling Wang
- Department of Orthopedic Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China.
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3
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Recent Advances in the Genetic of MALT Lymphomas. Cancers (Basel) 2021; 14:cancers14010176. [PMID: 35008340 PMCID: PMC8750177 DOI: 10.3390/cancers14010176] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Mucosa-associated lymphoid tissue (MALT) lymphoma is the most common subtype of marginal zone lymphomas. These B-cell neoplasms may arise from many organs and usually have an indolent behavior. Recurrent chromosomal translocations and cytogenetic alterations are well characterized, some of them being associated to specific sites. Through next-generation sequencing technologies, the mutational landscape of MALT lymphomas has been explored and available data to date show that there are considerable variations in the incidence and spectrum of mutations among MALT lymphoma of different sites. Interestingly, most of these mutations affect several common pathways and some of them are potentially targetable. Gene expression profile and epigenetic studies have also added new information, potentially useful for diagnosis and treatment. This article provides a comprehensive review of the genetic landscape in MALT lymphomas. Abstract Mucosa-associated lymphoid tissue (MALT) lymphomas are a diverse group of lymphoid neoplasms with B-cell origin, occurring in adult patients and usually having an indolent clinical behavior. These lymphomas may arise in different anatomic locations, sharing many clinicopathological characteristics, but also having substantial variances in the aetiology and genetic alterations. Chromosomal translocations are recurrent in MALT lymphomas with different prevalence among different sites, being the 4 most common: t(11;18)(q21;q21), t(1;14)(p22;q32), t(14;18)(q32;q21), and t(3;14)(p14.1;q32). Several chromosomal numerical abnormalities have also been described, but probably represent secondary genetic events. The mutational landscape of MALT lymphomas is wide, and the most frequent mutations are: TNFAIP3, CREBBP, KMT2C, TET2, SPEN, KMT2D, LRP1B, PRDM1, EP300, TNFRSF14, NOTCH1/NOTCH2, and B2M, but many other genes may be involved. Similar to chromosomal translocations, certain mutations are enriched in specific lymphoma types. In the same line, variation in immunoglobulin gene usage is recognized among MALT lymphoma of different anatomic locations. In the last decade, several studies have analyzed the role of microRNA, transcriptomics and epigenetic alterations, further improving our knowledge about the pathogenic mechanisms in MALT lymphoma development. All these advances open the possibility of targeted directed treatment and push forward the concept of precision medicine in MALT lymphomas.
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Current Limitations and Perspectives of Chimeric Antigen Receptor-T-Cells in Acute Myeloid Leukemia. Cancers (Basel) 2021; 13:cancers13246157. [PMID: 34944782 PMCID: PMC8699597 DOI: 10.3390/cancers13246157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Acute myeloid leukemia (AML) is the most frequent type of acute leukemia in adults. Allogeneic hematopoietic cell transplantation (allo-HCT) has been the only potentially curative treatment for the majority of patients. The ability of chimeric antigen receptor (CAR)-modified T-cell therapy directed against the CD19 antigen to induce durable remissions in patients with acute lymphoblastic leukemia (ALL) has provided optimism that this novel treatment paradigm can be extrapolated to AML. In this review, we provide an overview of candidate target antigens for CAR-T-cells in AML, an update on recent progress in preclinical and clinical development of investigational CAR-T-cell products, and discuss challenges for the clinical implementation of CAR-T-cell therapy in AML. Abstract Adoptive transfer of gene-engineered chimeric antigen receptor (CAR)-T-cells has emerged as a powerful immunotherapy for combating hematologic cancers. Several target antigens that are prevalently expressed on AML cells have undergone evaluation in preclinical CAR-T-cell testing. Attributes of an ‘ideal’ target antigen for CAR-T-cell therapy in AML include high-level expression on leukemic blasts and leukemic stem cells (LSCs), and absence on healthy tissues, normal hematopoietic stem and progenitor cells (HSPCs). In contrast to other blood cancer types, where CAR-T therapies are being similarly studied, only a rather small number of AML patients has received CAR-T-cell treatment in clinical trials, resulting in limited clinical experience for this therapeutic approach in AML. For curative AML treatment, abrogation of bulk blasts and LSCs is mandatory with the need for hematopoietic recovery after CAR-T administration. Herein, we provide a critical review of the current pipeline of candidate target antigens and corresponding CAR-T-cell products in AML, assess challenges for clinical translation and implementation in routine clinical practice, as well as perspectives for overcoming them.
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Siglec-6 is a novel target for CAR T-cell therapy in acute myeloid leukemia (AML). Blood 2021; 138:1830-1842. [PMID: 34289026 PMCID: PMC9642786 DOI: 10.1182/blood.2020009192] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 06/26/2021] [Indexed: 11/20/2022] Open
Abstract
Acute myeloid leukemia (AML) is attractive for the development of CAR T-cell immunotherapy because AML blasts are susceptible to T-cell-mediated elimination. Here, we introduce sialic-acid-binding immunoglobulin-like lectin (Siglec)-6 as a novel target for CAR T-cells in AML. We designed a Siglec-6-specific CAR with a targeting-domain derived from a human monoclonal antibody JML‑1. We found that Siglec-6 is prevalently expressed on AML cell lines and primary AML blasts, including the subpopulation of AML stem cells. Treatment with Siglec-6-CAR T-cells confers specific anti-leukemia reactivity that correlates with Siglec-6-expression in pre-clinical models, including induction of complete remission in a xenograft AML model in immunodeficient mice (NSG/U937). In addition, we confirmed Siglec-6-expression on transformed B-cells in chronic lymphocytic leukemia (CLL) and show specific anti-CLL-reactivity of Siglec-6-CAR T-cells in vitro. Of particular interest, we found that Siglec-6 is not detectable on normal hematopoietic stem and progenitor cells (HSC/P) and that treatment with Siglec-6-CAR T-cells does not affect their viability and lineage differentiation in colony-formation assays. These data suggest that Siglec-6-CAR T-cell therapy may be used to effectively treat AML without a need for subsequent allogeneic hematopoietic stem cell transplantation. In mature normal hematopoietic cells, we detected Siglec-6 in a proportion of memory (and naïve) B-cells and basophilic granulocytes, suggesting the potential for limited on-target/off-tumor reactivity. The lacking expression of Siglec-6 on normal HSC/P is a key differentiator from other Siglec-family members (e.g. Siglec-3=CD33) and other CAR target antigens, e.g. CD123, that are under investigation in AML and warrants the clinical investigation of Siglec-6-CAR T-cell therapy.
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Zhang H, Xie Y, Hu Z, Yu H, Xie X, Ye Y, Xu W, Nian S, Yuan Q. Integrative Analysis of the Expression of SIGLEC Family Members in Lung Adenocarcinoma via Data Mining. Front Oncol 2021; 11:608113. [PMID: 33796453 PMCID: PMC8008066 DOI: 10.3389/fonc.2021.608113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 02/22/2021] [Indexed: 12/25/2022] Open
Abstract
Background: Sialic acid-binding immunoglobulin-type lectin (SIGLEC) family members are involved in regulating immune-cell activation, proliferation, and apoptosis, and they play an important role in tumor development. However, their expression and correlation with immune molecules in lung adenocarcinoma (LUAD) remain unclear. Methods: We utilized Gene Expression Profiling Interactive Analysis, Kaplan-Meier analysis, the limma package in R/Bioconductor, the University of California Santa Cruz Cancer Genome Browser, cBioPortal, STRING, Cytoscape, DAVID, and the Tumor Immune Estimation Resource for gene and protein profiling and analyses. Results: The results showed that SIGLEC10 and SIGLEC15 levels were upregulated in LUAD, whereas SIGLEC1, CD22 (SIGLEC2), CD33, myelin-associated glycoprotein (SIGLEC4), SIGLEC5, SIGLEC6, SIGLEC7, SIGLEC8, SIGLEC11, and SIGLEC14 levels were significantly downregulated, with their low expression associated with poor overall survival. Moreover, we observed high SIGLEC-mutation rates (22%) in LUAD patients, with SIGLEC functions determined as primarily involved in regulating the immune response, signal transduction, inflammatory response, and cell adhesion. Furthermore, we found that SIGLEC expression was significantly correlated with immune-cell infiltration, especially macrophages, neutrophils, and dendritic cells, and highly associated with immune molecules such as CD80, CD86, CD28, B-cell-activating factor, programmed cell death 1 ligand 2, and colony stimulating factor 1 receptor. Conclusion: These results provide insight into the potential molecular mechanism associated with SIGLEC-related development of LUAD, as well as clues for screening biomarkers and therapeutic targets.
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Affiliation(s)
- Haiyan Zhang
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Yongfei Xie
- Life Sciences School, Anhui Agricultural University, Hefei, China
| | - Zhi Hu
- Department of Thoracic Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hong Yu
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Xiang Xie
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Yingchun Ye
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Wenfeng Xu
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Siji Nian
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
| | - Qing Yuan
- Public Experimental Technology Center, The School of Basic Medical Science, Southwest Medical University, Luzhou, China
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7
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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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Dufva O, Pölönen P, Brück O, Keränen MAI, Klievink J, Mehtonen J, Huuhtanen J, Kumar A, Malani D, Siitonen S, Kankainen M, Ghimire B, Lahtela J, Mattila P, Vähä-Koskela M, Wennerberg K, Granberg K, Leivonen SK, Meriranta L, Heckman C, Leppä S, Nykter M, Lohi O, Heinäniemi M, Mustjoki S. Immunogenomic Landscape of Hematological Malignancies. Cancer Cell 2020; 38:380-399.e13. [PMID: 32649887 DOI: 10.1016/j.ccell.2020.06.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 03/27/2020] [Accepted: 05/29/2020] [Indexed: 12/15/2022]
Abstract
Understanding factors that shape the immune landscape across hematological malignancies is essential for immunotherapy development. We integrated over 8,000 transcriptomes and 2,000 samples with multilevel genomics of hematological cancers to investigate how immunological features are linked to cancer subtypes, genetic and epigenetic alterations, and patient survival, and validated key findings experimentally. Infiltration of cytotoxic lymphocytes was associated with TP53 and myelodysplasia-related changes in acute myeloid leukemia, and activated B cell-like phenotype and interferon-γ response in lymphoma. CIITA methylation regulating antigen presentation, cancer type-specific immune checkpoints, such as VISTA in myeloid malignancies, and variation in cancer antigen expression further contributed to immune heterogeneity and predicted survival. Our study provides a resource linking immunology with cancer subtypes and genomics in hematological malignancies.
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MESH Headings
- Acute Disease
- Epigenesis, Genetic
- Gene Expression Profiling/methods
- Gene Expression Regulation, Neoplastic
- Genomics/methods
- HLA Antigens/genetics
- Humans
- Immunotherapy/methods
- Leukemia, Myeloid/genetics
- Leukemia, Myeloid/immunology
- Leukemia, Myeloid/therapy
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/immunology
- Lymphoma, Large B-Cell, Diffuse/therapy
- Multiple Myeloma/genetics
- Multiple Myeloma/immunology
- Multiple Myeloma/therapy
- Mutation
- Tumor Suppressor Protein p53/genetics
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Affiliation(s)
- Olli Dufva
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland; iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Petri Pölönen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Oscar Brück
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland; iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Mikko A I Keränen
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland
| | - Jay Klievink
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland
| | - Juha Mehtonen
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70211 Kuopio, Finland
| | - Jani Huuhtanen
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland
| | - Ashwini Kumar
- Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | - Disha Malani
- Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | - Sanna Siitonen
- Department of Clinical Chemistry, UH and HUSLAB, HUH, 00029 Helsinki, Finland
| | - Matti Kankainen
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland; iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland
| | - Bishwa Ghimire
- Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | - Jenni Lahtela
- Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | - Pirkko Mattila
- Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | | | | | - Kirsi Granberg
- Laboratory of Computational Biology, Faculty of Medicine and Health Technology, Tampere University (TU), 33014 Tampere, Finland
| | - Suvi-Katri Leivonen
- Department of Oncology, HUH CCC, 00029 Helsinki, Finland; Applied Tumor Genomics Research Program, Faculty of Medicine, UH, 00014 Helsinki, Finland
| | - Leo Meriranta
- Department of Oncology, HUH CCC, 00029 Helsinki, Finland; Applied Tumor Genomics Research Program, Faculty of Medicine, UH, 00014 Helsinki, Finland
| | - Caroline Heckman
- iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland; Institute for Molecular Medicine Finland, UH, 00014 Helsinki, Finland
| | - Sirpa Leppä
- iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland; Department of Oncology, HUH CCC, 00029 Helsinki, Finland; Applied Tumor Genomics Research Program, Faculty of Medicine, UH, 00014 Helsinki, Finland
| | - Matti Nykter
- Laboratory of Computational Biology, Faculty of Medicine and Health Technology, Tampere University (TU), 33014 Tampere, Finland
| | - Olli Lohi
- Tampere Center for Child Health Research, TU and Tays Cancer Center, Tampere University Hospital, 33521 Tampere, Finland
| | - Merja Heinäniemi
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70211 Kuopio, Finland.
| | - Satu Mustjoki
- Hematology Research Unit Helsinki, Helsinki University Hospital Comprehensive Cancer Center (HUH CCC), 00029 Helsinki, Finland; Translational Immunology Research Program and Department of Clinical Chemistry and Hematology, University of Helsinki (UH), 00029 Helsinki, Finland; iCAN Digital Precision Cancer Medicine Flagship, Helsinki, Finland.
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9
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Lue JK, O’Connor OA, Bertoni F. Targeting pathogenic mechanisms in marginal zone lymphoma: from concepts and beyond. ANNALS OF LYMPHOMA 2020; 4:7. [PMID: 34667996 PMCID: PMC7611845 DOI: 10.21037/aol-20-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Marginal zone lymphoma (MZL) represents a group of three distinct though overlapping lymphoid malignancies that includes extranodal, nodal and splenic marginal lymphoma. MZL patients usually present an indolent clinical course, although the disease remains largely incurable, save early stage disease that might be irradiated. Therapeutic advances have been limited due to the small patient population, and have largely been adapted from other indolent lymphomas. Here, we discuss the numerous targets and pathways which may offer the prospect of directly inhibiting the mechanisms identified promoting and sustaining marginal zone lymphomagenesis. In particular, we focus on the agents that may have at least a theoretical application in the disease. Various dysregulated pathways converge to produce an overarching stimulation of nuclear factor κB (NF-κB) and the MYD88-IRAK4 axis, which can be thus leveraged or targeting B-cell receptor signaling through BTK inhibitors (such as ibrutinib, zanubrutinib, acalabrutinib) and PI3K inhibitors (such as idelalisib, copanlisib, duvelisib umbralisib) or via more novel agents in development such as MALT1 inhibitors, SMAC mimetics, NIK inhibitors, IRAK4 or MYD88 inhibitors. NOTCH signaling is also crucial for marginal zone cells, but no clinical data are available with NOTCH inhibitors such as the γ-secretase inhibitor PF-03084014 or the NICD inhibitor CB-103. The hypermethylation phenotype, the overexpression of the PRC2-complex or the presence of TET2 mutations reported in MZL subsets make epigenetic agents (demethylating agents, EZH2 inhibitors, HDAC inhibitors) also potential therapeutic tools for MZL patients.
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Affiliation(s)
- Jennifer K. Lue
- Division of Hematology-Oncology, Department of Medicine, Columbia University Medical Center, Center for Lymphoid Malignancies, New York, NY, USA
| | - Owen A. O’Connor
- Division of Hematology and Oncology, Program for T-Cell Lymphoma Research, University of Virginia Cancer Center, Charlottesville, VA, USA
| | - Francesco Bertoni
- institute of Oncology Research, Faculty of Biomedical Sciences, USI, Bellinzona, Switzerland
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
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Verstappen GM, Ice JA, Bootsma H, Pringle S, Haacke EA, de Lange K, van der Vries GB, Hickey P, Vissink A, Spijkervet FKL, Lessard CJ, Kroese FGM. Gene expression profiling of epithelium-associated FcRL4 + B cells in primary Sjögren's syndrome reveals a pathogenic signature. J Autoimmun 2020; 109:102439. [PMID: 32201227 PMCID: PMC7337041 DOI: 10.1016/j.jaut.2020.102439] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 10/31/2022]
Abstract
In primary Sjögren's syndrome (pSS), FcRL4+ B cells are present in inflamed salivary gland tissue, within or in close proximity to ductal epithelium. FcRL4 is also expressed by nearly all pSS-related mucosa-associated lymphoid tissue (MALT) B cell lymphomas, linking FcRL4 expression to lymphomagenesis. Whether glandular FcRL4+ B cells are pathogenic, how these cells originate, and how they functionally differ from FcRL4- B cells in pSS is unclear. This study aimed to investigate the phenotype and function of FcRL4+ B cells in the periphery and parotid gland tissue of patients with pSS. First, circulating FcRL4+ B cells from 44 pSS and 54 non-SS-sicca patients were analyzed by flow cytometry. Additionally, RNA sequencing of FcRL4+ B cells sorted from parotid gland cell suspensions of 6 pSS patients was performed. B cells were sorted from cell suspensions as mini bulk (5 cells/well) based on the following definitions: CD19+CD27-FcRL4- ('naive'), CD19+CD27+FcRL4- ('memory'), and CD19+FcRL4+ B cells. We found that, although FcRL4+ B cells were not enriched in blood in pSS compared with non-SS sicca patients, these cells generally exhibited a pro-inflammatory phenotype. Genes coding for CD11c (ITGAX), T-bet (TBX21), TACI (TNFRSF13B), Src tyrosine kinases and NF-κB pathway-related genes were, among others, significantly upregulated in glandular FcRL4+ B cells versus FcRL4- B cells. Pathway analysis showed upregulation of B cell activation, cell cycle and metabolic pathways. Thus, FcRL4+ B cells in pSS exhibit many characteristics of chronically activated, pro-inflammatory B cells and their gene expression profile suggests increased risk of lymphomagenesis. We postulate that these cells contribute significantly to the epithelial damage seen in the glandular tissue and that FcRL4+ B cells are an important treatment target in pSS.
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Affiliation(s)
- Gwenny M Verstappen
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, the Netherlands.
| | - John A Ice
- Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Hendrika Bootsma
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Sarah Pringle
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Erlin A Haacke
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Kim de Lange
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Gerben B van der Vries
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Genomics Coordination Center, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Peter Hickey
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Melbourne, VIC, 3052, Australia; Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Arjan Vissink
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Frederik K L Spijkervet
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Christopher J Lessard
- Genes and Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Frans G M Kroese
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, the Netherlands
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11
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Cascione L, Rinaldi A, Bruscaggin A, Tarantelli C, Arribas AJ, Kwee I, Pecciarini L, Mensah AA, Spina V, Chung EYL, di Bergamo LT, Dirnhofer S, Tzankov A, Miranda RN, Young KH, Traverse-Glehen A, Gaidano G, Swerdlow SH, Gascoyne R, Rabadan R, Ponzoni M, Bhagat G, Rossi D, Zucca E, Bertoni F. Novel insights into the genetics and epigenetics of MALT lymphoma unveiled by next generation sequencing analyses. Haematologica 2019; 104:e558-e561. [PMID: 31018978 DOI: 10.3324/haematol.2018.214957] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Luciano Cascione
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Andrea Rinaldi
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Alessio Bruscaggin
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Chiara Tarantelli
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Alberto J Arribas
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Ivo Kwee
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland.,Dalle Molle Institute for Artificial Intelligence (IDSIA), Manno, Switzerland
| | | | - Afua A Mensah
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Valeria Spina
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Elaine Y L Chung
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
| | - Lodovico Terzi di Bergamo
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland.,Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Stephan Dirnhofer
- Institute of Pathology and Medical Genetics, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Alexandar Tzankov
- Institute of Pathology and Medical Genetics, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Roberto N Miranda
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ken H Young
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Gianluca Gaidano
- Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | | | | | - Raul Rabadan
- Department of Systems Biology, Department of Biomedical Informatics, Columbia University College of Physicians & Surgeons, New York, NY, USA
| | | | - Govind Bhagat
- Department of Pathology and Cell Biology, Columbia University Medical Center and New York Presbyterian Hospital, New York, NY, USA
| | - Davide Rossi
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland.,Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Emanuele Zucca
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Francesco Bertoni
- Università della Svizzera italiana, Institute of Oncology Research, Bellinzona, Switzerland
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12
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Comparative gene-expression profiling of the large cell variant of gastrointestinal marginal-zone B-cell lymphoma. Sci Rep 2017; 7:5963. [PMID: 28729720 PMCID: PMC5519735 DOI: 10.1038/s41598-017-05116-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 05/24/2017] [Indexed: 12/27/2022] Open
Abstract
Gastrointestinal (g.i.) large cell lymphoma is currently regarded as diffuse large B-cell lymphoma (DLBCL) despite a more favorable clinical outcome compared to other DLBCL. Cluster analyses on a transcriptome signature of NF-κB target genes of 30 g.i. marginal zone B-cell lymphomas (MZBL; 8 g.i. MZBL, 22 large cell MZBL - among them 9 with coexisting small cell component) and 6 DLBCL (3 activated B-cell like (ABC), 3 germinal center-like (GCB)) reveals a distinct pattern. The distinctiveness of large cell MZBL samples is further confirmed by a cohort of 270 available B-cell lymphoma and B-cell in silico profiles. Of the NF-κB genes analyzed, c-REL was overexpressed in g.i. MZBL. c-REL amplification was limited to 6/22 large cell MZBL including the large cell component of 2/9 composite small cell/large cell lymphomas, and c-Rel protein expression was found in the large cell compartment of composite lymphomas. Classification experiments on DLBCL and large cell MZBL profiles support the concept that the large cell MZBL is a distinct type of B-cell lymphoma.
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Abstract
Primary lung lymphoma (PLL) is a rare disease that comprises <0.5% of all primary lung tumors. It is defined as lymphoma confined to the lung with or without hilar lymph node involvement at the time of diagnosis or up to 3 months thereafter. Patients with PLL may be asymptomatic or manifest nonspecific clinical symptoms, for example, cough, chest pain, and dyspnea. Some individuals may be immunosupressed or have an autoimmune disorder. Radiologically, PLL can mimic pneumonia, lung carcinoma, or metastasis, and therefore, histologic confirmation is mandatory for definitive diagnosis. Primary lung marginal zone lymphoma of mucosa-associated lymphoid tissue type comprises 70% to 80% of cases. Less common B-cell lymphomas include diffuse large B-cell lymphoma, lymphomatoid granulomatosis (LyG), plasmacytoma, and other small lymphocytic lymphomas. PLLs of T-cell origin, largely represented by anaplastic large cell lymphoma, are extremely rare. LyG is an Epstein-Barr virus (EBV)-driven B-cell lymphoid neoplastic proliferation rich in T cells that produces vasculitis. The disease may present at different stages of progression. Differential diagnosis of PLL varies according to the lymphoma subtype: pulmonary mucosa-associated lymphoid tissue lymphoma should be distinguished from reactive inflammatory conditions, whereas high-grade lymphomas may resemble poorly differentiated lung carcinoma, metastatic disease, and other lymphomas. LyG can resemble inflammatory, infectious, and other lymphoid neoplastic processes. A panel of immunohistochemical markers, flow cytometry, and molecular methods are necessary to confirm the diagnosis in the majority of cases. In this article we review the clinical, radiologic, pathologic, and molecular characteristics of several B-cell and T-cell PLLs with exception of Hodgkin lymphoma and posttransplant lymphoproliferative disorder.
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Abstract
PURPOSE OF REVIEW Extranodal mucosa-associated lymphoid tissue (MALT lymphoma) is a distinct clinical-pathological entity that can be distinguished from other lymphomas by a number of unique features, including their location in various extranodal sites, being preceded by chronic inflammatory or infection processes; a characteristic histopathological picture; and the presence of exclusive chromosomal translocations which increase MALT1 proteolytic activity to promote constitutive NF-κB signaling and eventually drive lymphomagenesis. RECENT FINDINGS This review explores the major molecular and cellular events that participate in MALT lymphoma pathogenesis, focusing on gastric MALT lymphoma as a model of chronic inflammation-induced tumor development. In addition, the pivotal roles of activated MALT1 protease, its substrate TNFAIP3/A20, and the MyD88 adaptor protein in abnormally triggering downstream NF-κB pathway are overviewed. These new insights provide a mechanistic basis for using novel therapies targeting MALT1 protease or IRAK4 kinase activities. Finally, the putative cellular origin of MALT lymphomas is also discussed. SUMMARY Over the last decade, unraveling the biological complexity of MALT lymphomas has shed light on the fundamental cellular and molecular aspects of the disease that are to be translated into clinical diagnostics and therapy.
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15
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Sugimoto KJ, Asahina M, Shimada A, Ichikawa K, Wakabayashi M, Sekiguchi Y, Izumi H, Ota Y, Komatsu N, Noguchi M. IgG3 subclass-positive primary thymic MALT lymphoma without trisomy 3 and trisomy 18: report of a case and review of literature. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2014; 7:8980-8987. [PMID: 25674276 PMCID: PMC4313997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/01/2014] [Indexed: 06/04/2023]
Abstract
The patient, a 42-year-old man, was diagnosed as having an anterior mediastinal tumor. Examination of the resected tumor showed findings consistent with a primary thymic mucosa-associated lymphoid tissue lymphoma, stage IA. Postoperative (18)F-fluorodeoxyglucose-positron emission tomography/computed tomography demonstrated fluorodeoxyglucose accumulation at the site of tumor excision. This accumulation was interpreted as representing a residual lesion, and the patient was treated with rituximab. The patient has since been in a state of complete remission for about 3 years. Sporadic mucosa-associated lymphoid tissue lymphoma cells that appeared to have a propensity for differentiating into plasma cells in this case were analyzed for IgG and IgG subclass expression by immunohistochemical staining. The mucosa-associated lymphoid tissue lymphoma cells that showed a propensity for differentiating into IgG-positive plasma cells were IgG3-positive and IgG1-, IgG2- and IgG4-negative. An increase in IgG3 or IgG1 expression in immune cells has been previously demonstrated in immune responses to continuous exposure to the same proteins or peptide antigens and most mucosa-associated lymphoid tissue lymphomas show increased IgG3 and/or IgG1 expression. It is consistent with the fact that inflammation due to stimulation by a pathogenic antigen is considered to be etiologically responsible for the development of mucosa-associated lymphoid tissue lymphoma.
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Affiliation(s)
- Kei-Ji Sugimoto
- Department of Hematology, Juntendo University Urayasu HospitalChiba, Japan
| | - Miki Asahina
- Department of Human Pathology, Juntendo University School of MedicineTokyo, Japan
| | - Asami Shimada
- Department of Hematology, Juntendo University Urayasu HospitalChiba, Japan
| | - Kunimoto Ichikawa
- Department of Hematology, Juntendo University Urayasu HospitalChiba, Japan
| | | | - Yasunobu Sekiguchi
- Department of Hematology, Juntendo University Urayasu HospitalChiba, Japan
| | - Hiroshi Izumi
- Department of Pathology, Juntendo University Urayasu HospitalChiba, Japan
| | - Yasunori Ota
- Department of Pathology, Research Hospital, The Institute of Medical Science, the University of TokyoJapan
| | - Norio Komatsu
- Department of Hematology, Juntendo University School of MedicineTokyo, Japan
| | - Masaaki Noguchi
- Department of Hematology, Juntendo University Urayasu HospitalChiba, Japan
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Abstract
Tumor progression and pregnancy share many common features, such as immune tolerance and invasion. The invasion of trophoblasts in the placenta into the uterine wall is essential for fetal development, and is thus precisely regulated. Its deregulation has been implicated in preeclampsia, a leading cause for maternal and perinatal mortality and morbidity. Pathogenesis of preeclampsia remains to be defined. Microarray-based gene profiling has been widely used for identifying genes responsible for preeclampsia. In this review, we have summarized the recent data from the microarray studies with preeclamptic placentas. Despite the complex of gene signatures, suggestive of the heterogeneity of preeclampsia, these studies identified a number of differentially expressed genes associated with preeclampsia. Interestingly, most of them have been reported to be tightly involved in tumor progression. We have discussed these interesting genes and analyzed their potential molecular functions in preeclampsia, compared with their roles in malignancy development. Further investigations are warranted to explore the involvement in molecular network of each identified gene, which may provide not only novel strategies for prevention and therapy for preeclampsia but also a better understanding of cancer cells. The trophoblastic cells, with their capacity for proliferation and differentiation, apoptosis and survival, migration, angiogenesis and immune modulation by exploiting similar molecular pathways, make them a compelling model for cancer research.
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Nodular Pulmonary Amyloidosis Is Characterized by Localized Immunoglobulin Deposition and Is Frequently Associated With an Indolent B-cell Lymphoproliferative Disorder. Am J Surg Pathol 2013; 37:406-12. [DOI: 10.1097/pas.0b013e318272fe19] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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t(X;14)(p11;q32) in MALT lymphoma involving GPR34 reveals a role for GPR34 in tumor cell growth. Blood 2012; 120:3949-57. [PMID: 22966169 DOI: 10.1182/blood-2011-11-389908] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Genetic aberrations, including trisomies 3 and 18, and well-defined IGH translocations, have been described in marginal zone lymphomas (MZLs); however, these known genetic events are present in only a subset of cases. Here, we report the cloning of an IGH translocation partner on chromosome X, t(X;14)(p11.4;q32) that deregulates expression of an poorly characterized orphan G-protein-coupled receptor, GPR34. Elevated GPR34 gene expression was detected independent of the translocation in multiple subtypes of non-Hodgkin lymphoma and distinguished a unique molecular subtype of MZL. Increased expression of GPR34 was also detected in tissue from brain tumors and surface expression of GPR34 was detected on human MZL tumor cells and normal immune cells. Overexpression of GPR34 in lymphoma and HeLa cells resulted in phosphorylation of ERK, PKC, and CREB; induced CRE, AP1, and NF-κB-mediated gene transcription; and increased cell proliferation. In summary, these results are the first to identify a role for a GPR34 in lymphoma cell growth, provide insight into GPR34-mediated signaling, identify a genetically unique subset of MZLs that express high levels of GPR34, and suggest that MEK inhibitors may be useful for treatment of GPR34-expressing tumors.
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Braggio E, Dogan A, Keats JJ, Chng WJ, Huang G, Matthews JM, Maurer MJ, Law ME, Bosler DS, Barrett M, Lossos IS, Witzig T, Fonseca R. Genomic analysis of marginal zone and lymphoplasmacytic lymphomas identified common and disease-specific abnormalities. Mod Pathol 2012; 25:651-60. [PMID: 22301699 PMCID: PMC3341516 DOI: 10.1038/modpathol.2011.213] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Lymphoplasmacytic lymphomas and marginal zone lymphomas of nodal, extra-nodal and splenic types account for 10% of non-Hodgkin lymphomas. They are similar at the cell differentiation level, sometimes making difficult to distinguish them from other indolent non-Hodgkin lymphomas. To better characterize their genetic basis, we performed array-based comparative genomic hybridization in 101 marginal zone lymphomas (46 MALT, 35 splenic and 20 nodal marginal zone lymphomas) and 13 lymphoplasmacytic lymphomas. Overall, 90% exhibited copy-number abnormalities. Lymphoplasmacytic lymphomas demonstrated the most complex karyotype (median=7 copy-number abnormalities), followed by MALT (4), nodal (3.5) and splenic marginal zone lymphomas (3). A comparative analysis exposed a group of copy-number abnormalities shared by several or all the entities with few disease-specific abnormalities. Gain of chromosomes 3, 12 and 18 and loss of 6q23-q24 (TNFAIP3) were identified in all entities. Losses of 13q14.3 (MIRN15A-MIRN16-1) and 17p13.3-p12 (TP53) were found in lymphoplasmacytic and splenic marginal zone lymphomas; loss of 11q21-q22 (ATM) was found in nodal, splenic marginal zone and lymphoplasmacytic lymphomas and loss of 7q32.1-q33 was found in MALT, splenic and lymphoplasmacytic lymphomas. Abnormalities affecting the nuclear factor kappa B pathway were observed in 70% of MALT and lymphoplasmacytic lymphomas and 30% of splenic and nodal marginal zone lymphomas, suggesting distinct roles of this pathway in the pathogenesis/progression of these subtypes. Elucidation of the genetic alterations contributing to the pathogenesis of these lymphomas may guide to design-specific therapeutic approaches.
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Affiliation(s)
- Esteban Braggio
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Scottsdale, Arizona, USA
| | - Ahmet Dogan
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Wee J Chng
- Department of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore
| | - Gaofeng Huang
- Department of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore
| | - Julie M Matthews
- Department of Molecular and Cellular Pharmacology, University of Miami, FL, USA
| | - Matthew J Maurer
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark E Law
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | - Izidore S Lossos
- Division of Hematology-Oncology, Department of Medicine, Sylvester Comprehensive Cancer Center and Department of Molecular and Cellular Pharmacology, University of Miami, FL, USA
| | - Thomas Witzig
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Rafael Fonseca
- Department of Hematology – Oncology, Mayo Clinic, Scottsdale, Arizona, USA
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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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Nodal marginal zone lymphoma: gene expression and miRNA profiling identify diagnostic markers and potential therapeutic targets. Blood 2011; 119:e9-e21. [PMID: 22110251 DOI: 10.1182/blood-2011-02-339556] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Nodal marginal zone lymphoma (NMZL) is a small B-cell neoplasm whose molecular pathogenesis is still essentially unknown and whose differentiation from other small B-cell lymphomas is hampered by the lack of specific markers. We have analyzed gene expression, miRNA profile, and copy number data from 15 NMZL cases. For comparison, 16 follicular lymphomas (FLs), 9 extranodal marginal zone lymphomas, and 8 reactive lymph nodes and B-cell subtypes were included. The results were validated by quantitative RT-PCR in an independent series, including 61 paraffin-embedded NMZLs. NMZL signature showed an enriched expression of gene sets identifying interleukins, integrins, CD40, PI3K, NF-κB, and TGF-β, and included genes expressed by normal marginal zone cells and memory B cells. The most highly overexpressed genes were SYK, TACI, CD74, CD82, and CDC42EP5. Genes linked to G(2)/M and germinal center were down-regulated. Comparison of the gene expression profiles of NMZL and FL showed enriched expression of CHIT1, TGFB1, and TACI in NMZL, and BCL6, LMO2, and CD10 in FL. NMZL displayed increased expression of miR-221, miR-223, and let-7f, whereas FL strongly expressed miR-494. Our study identifies new candidate diagnostic molecules for NMZL and reveals survival pathways activated in NMZL.
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Chen B, Gao J, Tang Y, Zhang S, Li W, Zeng J. [clinicopathological analysis of pulmonary marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2011; 14:446-51. [PMID: 21569653 PMCID: PMC6000324 DOI: 10.3779/j.issn.1009-3419.2011.05.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND OBJECTIVE As a rare disease, pulmonary marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (PMZL-MALT), is often misdiagnosed. The aim of this study is to summarize the clinical and pathological features of this disease and improve the awareness of doctors. METHODS Seven cases (female 5, male 2) diagnosed of PMZL-MALT in West China Hospital between November 2008 and November 2010, were analyzed retrospectively, including their symptoms, radiological findings, pathological examinations, treatment and prognosis. RESULTS The median age of the patients were 62 years old (range 34-79 years). Six patients suffered from cough and sputum. Pulmonary consolidation was the most frequent manifestation, leading a misdiagnosis of pneumonia with CT examinations. Pathological diagnosis was obtained via fiberoptic bronchoscopy in six patients and percutaneous pulmonary biopsy for the rest one. In the seven cases, immunohistochemical results showed CD20(+), CD79a(+), while CD3 epsilon(-), CD5(-), CyclinD1(-), CD10(-), Bcl-2(-) and CD30(-). Additionally, the expression of Ki-67 was below 10%. Further PCR analysis showed evidence of immunoglobulin heavy chain gene rearrangement in tissues from six subjects. Based on the disease location and patients' wishes, compared with two cases just receiving symptomatic treatments, the other five ones took in chemotherapies. CONCLUSION Since there were no specific clinical features for patients of PMZL-MALT, histopathological examination was the only effective means to confirm the diagnosis.
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Affiliation(s)
- Bojiang Chen
- Department of Respiratory Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
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Novak U, Basso K, Pasqualucci L, Dalla-Favera R, Bhagat G. Genomic analysis of non-splenic marginal zone lymphomas (MZL) indicates similarities between nodal and extranodal MZL and supports their derivation from memory B-cells. Br J Haematol 2011; 155:362-5. [PMID: 21883140 DOI: 10.1111/j.1365-2141.2011.08841.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Three distinct categories of marginal zone lymphomas (MZLs) are currently recognized, principally based on their site of occurrence. They are thought to represent unique entities, but the relationship of one subtype with another is poorly understood. We investigated 17 non-splenic MZLs (seven nodal, 10 extranodal) by gene expression profiling to distinguish between subtypes and determine their cell of origin. Our findings suggest biological inter-relatedness of these entities despite occurrence at different locations and associations with possibly different aetiologies. Furthermore, the expression profiles of non-splenic MZL were similar to memory B cells.
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Affiliation(s)
- Urban Novak
- Departments of Pathology and Cell Biology Genetics and Development Herbert Irving Comprehensive Cancer Center Institute for Cancer Genetics, Columbia University Medical Center and New York Presbyterian Hospital, New York, NY, USA
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24
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Xia H, Nakayama T, Sakuma H, Yamada S, Sato F, Takino H, Okabe M, Fujiyoshi Y, Hattori H, Inagaki H. Analysis of API2-MALT1 fusion, trisomies, and immunoglobulin VH genes in pulmonary mucosa-associated lymphoid tissue lymphoma. Hum Pathol 2011; 42:1297-304. [PMID: 21396678 DOI: 10.1016/j.humpath.2010.11.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 11/23/2010] [Accepted: 11/24/2010] [Indexed: 02/06/2023]
Abstract
Pulmonary mucosa-associated lymphoid tissue lymphoma is unique in that chronic inflammation is rare and that API2-MALT1 fusion, resulting from t(11;18)(q21;q21), occurs frequently. In this study, we examined 20 cases for API2-MALT1 fusion using the 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. In addition, we analyzed VH genes by subcloning of the monoclonal polymerase chain reaction products. Of 20 cases studied, we detected gene abnormalities in 16: API2-MALT1 fusion in 9, trisomy 3 in 5, trisomy 18 in 4, MALT1 abnormality in 13, and IGH abnormality in 1. MALT1 gene abnormalities were concordant with API2-MALT1 fusion or trisomy 18. One case showed API2-MALT1 fusion and trisomy 3. On detection of API2-MALT1 fusion and trisomies, we were able to divide our cases into 3 groups, API2-MALT1 positive, trisomy positive, and no detectable gene abnormality, suggesting that tumor development had processed along different genetic pathways. All 20 cases were analyzed for VH genes. Most of the VH genes selected by the lymphomas belonged to the VH3 family, but there was no restriction to any particular VH fragment. Of interest, VH genes were unmutated in 7 cases, suggesting that T-cell-independent extrafollicular B-cell maturation may be important in the development of this lymphoma. In addition, both mutated and unmutated tumor cases were found to carry the API2-MALT1 fusion and trisomy 3. This observation suggests that these gene abnormalities may occur in microenvironments found before or outside of follicular germinal centers.
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Affiliation(s)
- Hongjing Xia
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya 467-8601, Japan
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25
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Genome-wide DNA profiling of marginal zone lymphomas identifies subtype-specific lesions with an impact on the clinical outcome. Blood 2010; 117:1595-604. [PMID: 21115979 DOI: 10.1182/blood-2010-01-264275] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Marginal zone B-cell lymphomas (MZLs) have been divided into 3 distinct subtypes (extranodal MZLs of mucosa-associated lymphoid tissue [MALT] type, nodal MZLs, and splenic MZLs). Nevertheless, the relationship between the subtypes is still unclear. We performed a comprehensive analysis of genomic DNA copy number changes in a very large series of MZL cases with the aim of addressing this question. Samples from 218 MZL patients (25 nodal, 57 MALT, 134 splenic, and 2 not better specified MZLs) were analyzed with the Affymetrix Human Mapping 250K SNP arrays, and the data combined with matched gene expression in 33 of 218 cases. MALT lymphoma presented significantly more frequently gains at 3p, 6p, 18p, and del(6q23) (TNFAIP3/A20), whereas splenic MZLs was associated with del(7q31), del(8p). Nodal MZLs did not show statistically significant differences compared with MALT lymphoma while lacking the splenic MZLs-related 7q losses. Gains of 3q and 18q were common to all 3 subtypes. del(8p) was often present together with del(17p) (TP53). Although del(17p) did not determine a worse outcome and del(8p) was only of borderline significance, the presence of both deletions had a highly significant negative impact on the outcome of splenic MZLs.
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26
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Wang J, Lippman SM, Lee JJ, Yang H, Khuri FR, Kim E, Lin J, Chang DW, Lotan R, Hong WK, Wu X. Genetic variations in regulator of G-protein signaling genes as susceptibility loci for second primary tumor/recurrence in head and neck squamous cell carcinoma. Carcinogenesis 2010; 31:1755-61. [PMID: 20627871 DOI: 10.1093/carcin/bgq138] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Curatively treated patients with early-stage head and neck squamous cell carcinoma (HNSCC) are at high risks for second primary tumor (SPT) and recurrence. The regulator of G-protein signaling (RGS) is important in essential signaling transduction and cellular activities. We hypothesize that genetic variations of RGS may modulate the risk of SPT/recurrence in patients with early-stage HNSCC. In a nested case-control study, we evaluated 98 single-nucleotide polymorphisms (SNPs) in 17 RGS genes for the risk of SPT/recurrence among 450 HNSCC patients. Eight SNPs showed significant associations with the risk of SPT/recurrence, with the most significant one of rs2179653, which is located in the 5'-flanking region of RGS2 gene. Under a recessive genetic model, the homozygous variant genotype of this SNP was associated with 2.95-fold [95% confidence interval (CI): 1.52-5.74] increased risk of SPT/recurrence. This association remained significant after the adjustment for multiple comparisons. Cumulative effects analysis revealed that the risk increased significantly with the increasing numbers of unfavorable genotypes. Compared with subjects carrying 0-2 unfavorable genotypes, the hazard ratios (95% CIs) for those carrying 3 or 4+ were 1.73 (1.10-2.70) and 3.05 (1.92-4.83), respectively. Furthermore, survival tree analysis revealed potential higher order gene-gene interactions and indicated different outcomes based on distinct genotype profiles. Genetic variations of RGS genes may modulate the susceptibility to SPT/recurrence in early-stage HNSCC patients individually and cumulatively. Our results stressed the importance of taking a polygenic approach to evaluate the cumulative and interaction effects of genetic variations in the prediction of cancer risk and prognosis.
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Affiliation(s)
- Jianming Wang
- Department of Epidemiology, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA
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27
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Hamoudi RA, Appert A, Ye H, Ruskone-Fourmestraux A, Streubel B, Chott A, Raderer M, Gong L, Wlodarska I, De Wolf-Peeters C, MacLennan KA, de Leval L, Isaacson PG, Du MQ. Differential expression of NF-kappaB target genes in MALT lymphoma with and without chromosome translocation: insights into molecular mechanism. Leukemia 2010; 24:1487-97. [PMID: 20520640 DOI: 10.1038/leu.2010.118] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mucosa-associated lymphoid tissue (MALT) lymphoma is characterized by t(11;18)(q21;q21)/API2-MALT1, t(1;14)(p22;q32)/BCL10-IGH and t(14;18)(q32;q21)/IGH-MALT1, which commonly activate the nuclear factor (NF)-kappaB pathway. Gastric MALT lymphomas harboring such translocations usually do not respond to Helicobacter pylori eradication, while most of those without translocation can be cured by antibiotics. To understand the molecular mechanism of these different MALT lymphoma subgroups, we performed gene expression profiling analysis of 21 MALT lymphomas (13 translocation-positive, 8 translocation-negative). Gene set enrichment analysis (GSEA) of the NF-kappaB target genes and 4394 additional gene sets covering various cellular pathways, biological processes and molecular functions have shown that translocation-positive MALT lymphomas are characterized by an enhanced expression of NF-kappaB target genes, particularly toll like receptor (TLR)6, chemokine, CC motif, receptor (CCR)2, cluster of differentiation (CD)69 and B-cell CLL/lymphoma (BCL)2, while translocation-negative cases were featured by active inflammatory and immune responses, such as interleukin-8, CD86, CD28 and inducible T-cell costimulator (ICOS). Separate analyses of the genes differentially expressed between translocation-positive and -negative cases and measurement of gene ontology term in these differentially expressed genes by hypergeometric test reinforced the above findings by GSEA. Finally, expression of TLR6, in the presence of TLR2, enhanced both API2-MALT1 and BCL10-mediated NF-kappaB activation in vitro. Our findings provide novel insights into the molecular mechanism of MALT lymphomas with and without translocation, potentially explaining their different clinical behaviors.
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Affiliation(s)
- R A Hamoudi
- Department of Pathology, University of Cambridge, Cambridge, UK
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28
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Genomic and clinical characteristics of microduplications in chromosome 17. Am J Med Genet A 2010; 152A:1101-10. [DOI: 10.1002/ajmg.a.33248] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Gradowski JF, Jaffe ES, Warnke RA, Pittaluga S, Surti U, Gole LA, Swerdlow SH. Follicular lymphomas with plasmacytic differentiation include two subtypes. Mod Pathol 2010; 23:71-9. [PMID: 19838161 PMCID: PMC6349384 DOI: 10.1038/modpathol.2009.146] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Follicular lymphomas with plasmacytic differentiation were described more than two decades ago. However, the possibility that some of these reported cases are marginal zone lymphomas or composite lymphomas must be considered. In addition, it is also uncertain whether follicular lymphomas with plasmacytic differentiation have any unique cytogenetic or other features. Therefore, fluorescence immunophenotypic and interphase cytogenetic analysis of 14 well-characterized follicular lymphomas with plasmacytic differentiation was performed using a CD138 antibody to identify the plasma cells and with BCL2, BCL6, IGH@ and MALT1 break-apart probes and a chromosome 12 centromeric probe. CD10 was expressed in 12/14 cases, BCL6 in 12/12 cases and BCL2 in 12/14 cases. At least one cytogenetic abnormality was identified in 12/14 cases. The same abnormality was present in both the plasmacytic (CD138+) and non-plasmacytic (CD138-) component in all 10 evaluable cases. BCL2 rearrangements were present in seven cases (5 IGH@ rearranged, 1 IGH@-not rearranged, 1 IGH@-not evaluable), BCL6 rearrangement in two (1 also with BCL2/IGH@ rearrangement), +12 in 1, +MALT1 without +18 in 1, IGH@ rearrangement without other abnormalities in 1 and IGH@ rearranged or partially deleted in 1 case. No cases showed +BCL6 (3q27) or a MALT1 rearrangement. All six cases with an isolated BCL2 rearrangement had predominantly interfollicular plasmacytic cells whereas, 6/7 cases without the translocation had concentrations of intrafollicular or perifollicular plasmacytic cells (P<0.005), as did the case with BCL2 and BCL6 translocations. These results support the existence of bona fide follicular lymphomas with plasmacytic differentiation and support the clonal relationship of the neoplastic lymphoid and plasma cells in at least most of these cases. The differential distribution of the plasma cells, specifically in relation to the presence or absence of an isolated BCL2 rearrangement suggests that the latter cases may be distinctive, sharing some features with marginal zone lymphomas.
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Affiliation(s)
- Joel F Gradowski
- Department of Pathology, Division of Hematopathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Elaine S Jaffe
- Department of Pathology, National Cancer Institute, Bethesda, MD, USA
| | - Roger A Warnke
- Department of Pathology, Stanford University, Palo Alto, CA, USA
| | | | - Urvashi Surti
- Department of Pathology, University of Pittsburgh School of Medicine and Pittsburgh Cytogenetics Laboratory, UPMC-Magee Womens Hospital, Pittsburgh, PA, USA
| | - Leena A Gole
- Pittsburgh Cytogenetics Laboratory, UPMC-Magee Womens Hospital, Pittsburgh, PA, USA
| | - Steven H Swerdlow
- Department of Pathology, Division of Hematopathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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30
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31
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Jevremovic D, Viswanatha DS. Molecular diagnosis of hematopoietic and lymphoid neoplasms. Hematol Oncol Clin North Am 2009; 23:903-33. [PMID: 19577174 DOI: 10.1016/j.hoc.2009.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This chapter summarizes the significance and molecular diagnostic detection of genetic abnormalities commonly associated with hematolymphoid neoplasms. Methodologic aspects of laboratory diagnosis are presented, as well as discussion of multiparameter genotyping of tumors for prognosis and the role of minimal residual disease monitoring in specific neoplasms.
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Affiliation(s)
- Dragan Jevremovic
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
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32
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A common migratory highway between human spleen and mucosa-associated lymphoid tissues; data from nature's own experiments. Mucosal Immunol 2009; 2:380-2. [PMID: 19571799 DOI: 10.1038/mi.2009.91] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Elegant animal models of lymphocyte traffic have uncovered routes of lymphocyte movement between and within tissues. Routes of human lymphocyte migration cannot always be extrapolated from animal studies and investigating this in vivo is particularly challenging. In this commentary, we consider the migratory properties of low-grade B-cell lymphomas of mucosa-associated lymphoid tissue (MALT) and describe a migratory route between the human mucosa and splenic marginal zone.
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33
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Hurst JH, Hooks SB. Regulator of G-protein signaling (RGS) proteins in cancer biology. Biochem Pharmacol 2009; 78:1289-97. [PMID: 19559677 DOI: 10.1016/j.bcp.2009.06.028] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 06/16/2009] [Accepted: 06/18/2009] [Indexed: 01/09/2023]
Abstract
The regulator of G-protein signaling (RGS) family is a diverse group of multifunctional proteins that regulate cellular signaling events downstream of G-protein coupled receptors (GPCRs). In recent years, GPCRs have been linked to the initiation and progression of multiple cancers; thus, regulators of GPCR signaling are also likely to be important to the pathophysiology of cancer. This review highlights recent studies detailing changes in RGS transcript expression during oncogenesis, single nucleotide polymorphisms in RGS proteins linked to lung and bladder cancers, and specific roles for RGS proteins in multiple cancer types.
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Affiliation(s)
- Jillian H Hurst
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602, USA
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