1
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Dobaño-López C, Valero JG, Araujo-Ayala F, Nadeu F, Gava F, Faria C, Norlund M, Morin R, Bernes-Lasserre P, Arenas F, Grau M, López C, López-Oreja I, Serrat N, Martínez-Farran A, Hernández L, Playa-Albinyana H, Giménez R, Beà S, Campo E, Lagarde JM, López-Guillermo A, Magnano L, Colomer D, Bezombes C, Pérez-Galán P. Patient-derived follicular lymphoma spheroids recapitulate lymph node signaling and immune profile uncovering galectin-9 as a novel immunotherapeutic target. Blood Cancer J 2024; 14:75. [PMID: 38697976 DOI: 10.1038/s41408-024-01041-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/13/2024] [Accepted: 03/20/2024] [Indexed: 05/05/2024] Open
Abstract
Follicular lymphoma (FL), the most common indolent non-Hodgkin lymphoma, constitutes a paradigm of immune tumor microenvironment (TME) contribution to disease onset, progression, and heterogenous clinical outcome. Here we present the first FL-Patient Derived Lymphoma Spheroid (FL-PDLS), including fundamental immune actors and features of TME in FL lymph nodes (LNs). FL-PDLS is organized in disc-shaped 3D structures composed of proliferating B and T cells, together with macrophages with an intermediate M1/M2 phenotype. FL-PDLS recapitulates the most relevant B-cell transcriptional pathways present in FL-LN (proliferation, epigenetic regulation, mTOR, adaptive immune system, among others). The T cell compartment in the FL-PDLS preserves CD4 subsets (follicular helper, regulatory, and follicular regulatory), also encompassing the spectrum of activation/exhaustion phenotypes in CD4 and CD8 populations. Moreover, this system is suitable for chemo and immunotherapy testing, recapitulating results obtained in the clinic. FL-PDLS allowed uncovering that soluble galectin-9 limits rituximab, rituximab, plus nivolumab/TIM-3 antitumoral activities. Blocking galectin-9 improves rituximab efficacy, highlighting galectin-9 as a novel immunotherapeutic target in FL. In conclusion, FL-PDLS maintains the crosstalk between malignant B cells and the immune LN-TME and constitutes a robust and multiplexed pre-clinical tool to perform drug screening in a patient-derived system, advancing toward personalized therapeutic approaches.
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Affiliation(s)
- Cèlia Dobaño-López
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Juan García Valero
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Ferran Araujo-Ayala
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Ferran Nadeu
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Fabien Gava
- Université de Toulouse, INSERM, CNRS, Université de Toulouse III-Paul Sabatier, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France
| | - Carla Faria
- Université de Toulouse, INSERM, CNRS, Université de Toulouse III-Paul Sabatier, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France
| | | | | | | | - Fabian Arenas
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Marta Grau
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Cristina López
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- University of Barcelona, Medical School, Barcelona, Spain
| | - Irene López-Oreja
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- Secció Hematopatologia, Servei d'Anatomia Patològica, Hospital Clínic, Barcelona, Spain
| | - Neus Serrat
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Ares Martínez-Farran
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Lluís Hernández
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Heribert Playa-Albinyana
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Rubén Giménez
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
| | - Silvia Beà
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- University of Barcelona, Medical School, Barcelona, Spain
- Secció Hematopatologia, Servei d'Anatomia Patològica, Hospital Clínic, Barcelona, Spain
| | - Elías Campo
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- University of Barcelona, Medical School, Barcelona, Spain
- Secció Hematopatologia, Servei d'Anatomia Patològica, Hospital Clínic, Barcelona, Spain
| | | | - Armando López-Guillermo
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- University of Barcelona, Medical School, Barcelona, Spain
- Servei Hematologia, Hospital Clínic, Barcelona, Spain
| | - Laura Magnano
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- IMACTIV-3D, Toulouse, France
- University of Barcelona, Medical School, Barcelona, Spain
- Servei Hematologia, Hospital Clínic, Barcelona, Spain
| | - Dolors Colomer
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain
- University of Barcelona, Medical School, Barcelona, Spain
- Secció Hematopatologia, Servei d'Anatomia Patològica, Hospital Clínic, Barcelona, Spain
| | - Christine Bezombes
- Université de Toulouse, INSERM, CNRS, Université de Toulouse III-Paul Sabatier, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France.
| | - Patricia Pérez-Galán
- Fundació de Recerca Clínic Barcelona - Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain.
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), Madrid, Spain.
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2
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De Bolòs A, Sureda-Gómez M, Carreras-Caballé M, Rodríguez ML, Clot G, Beà S, Giné E, Campo E, Balsas P, Amador V. SOX11/PRDX2 axis modulates redox homeostasis and chemoresistance in aggressive mantle cell lymphoma. Sci Rep 2024; 14:7863. [PMID: 38570586 PMCID: PMC10991377 DOI: 10.1038/s41598-024-58216-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/26/2024] [Indexed: 04/05/2024] Open
Abstract
Mantle cell lymphoma (MCL) is an incurable B-cell neoplasm characterized by an aggressive behavior, short responses to conventional therapies and SOX11 overexpression, which is associated with aggressive disease features and inferior clinical outcome of patients. Oxidative stress is known to induce tumorigenesis and tumor progression, whereas high expression levels of antioxidant genes have been associated with chemoresistance in different cancers. However, the role of oxidative stress in MCL pathogenesis and the involvement of SOX11 regulating redox homeostasis in MCL cells are largely unknown. Here, by integrating gene set enrichment analysis of two independent series of MCL, we observed that SOX11+ MCL had higher reactive oxygen species (ROS) levels compared to SOX11- MCL primary tumors and increased expression of Peredoxine2 (PRDX2), which upregulation significantly correlated with SOX11 overexpression, higher ROS production and worse overall survival of patients. SOX11 knockout (SOX11KO) significantly reduced PRDX2 expression, and SOX11KO and PRDX2 knockdown (PRDX2KD) had increased ROS levels and ROS-mediated tumor cell death upon treatment with drugs, compared to control MCL cell lines. Our results suggest an aberrant redox homeostasis associated with chemoresistance in aggressive MCL through SOX11-mediated PRDX2 upregulation, highlighting PRDX2 as promising target for new therapeutic strategies to overcome chemoresistance in aggressive MCLs.
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Affiliation(s)
- Anna De Bolòs
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
| | - Marta Sureda-Gómez
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
| | - Maria Carreras-Caballé
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
| | - Marta-Leonor Rodríguez
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
| | - Guillem Clot
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- University of Barcelona, Barcelona, Spain
| | - Silvia Beà
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- University of Barcelona, Barcelona, Spain
- Hematopathology Section, Department of Pathology, Hospital Clínic, Barcelona, Spain
| | - Eva Giné
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- University of Barcelona, Barcelona, Spain
| | - Elias Campo
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- University of Barcelona, Barcelona, Spain
- Hematopathology Section, Department of Pathology, Hospital Clínic, Barcelona, Spain
| | - Patricia Balsas
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain
| | - Virginia Amador
- Centre Esther Koplowitz (CEK), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ Rosselló 149-153, 08036, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain.
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Díaz-Navarro A, Bousquets-Muñoz P, Nadeu F, López-Tamargo S, Beà S, Campo E, Puente XS. RFcaller: a machine learning approach combined with read-level features to detect somatic mutations. NAR Genom Bioinform 2023; 5:lqad056. [PMID: 37260508 PMCID: PMC10227442 DOI: 10.1093/nargab/lqad056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 05/11/2023] [Accepted: 05/23/2023] [Indexed: 06/02/2023] Open
Abstract
The cost reduction in sequencing and the extensive genomic characterization of a wide variety of cancers are expanding tumor sequencing to a wide number of research groups and the clinical practice. Although specific pipelines have been generated for the identification of somatic mutations, their results usually differ considerably, and a common approach is to use several callers to achieve a more reliable set of mutations. This procedure is computationally expensive and time-consuming, and it suffers from the same limitations in sensitivity and specificity as other approaches. Expert revision of mutant calls is therefore required to verify calls that might be used for clinical diagnosis. This step could take advantage of machine learning techniques, as they provide a useful approach to incorporate expert-reviewed information for the identification of somatic mutations. Here we present RFcaller, a pipeline based on machine learning algorithms, for the detection of somatic mutations in tumor-normal paired samples that does not require large computing resources. RFcaller shows high accuracy for the detection of substitutions and insertions/deletions from whole genome or exome data. It allows the detection of mutations in driver genes missed by other approaches, and has been validated by comparison to deep and Sanger sequencing.
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Affiliation(s)
- Ander Díaz-Navarro
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Pablo Bousquets-Muñoz
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Ferran Nadeu
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Sara López-Tamargo
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Silvia Beà
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
- Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain
| | - Elias Campo
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
- Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain
| | - Xose S Puente
- To whom correspondence should be addressed. Tel: +34 985105027;
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4
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Sureda-Gómez M, Balsas P, Rodríguez ML, Nadeu F, De Bolòs A, Eguileor Á, Kulis M, Castellano G, López C, Giné E, Demajo S, Jares P, Martín-Subero JI, Beà S, Campo E, Amador V. Tumorigenic role of Musashi-2 in aggressive mantle cell lymphoma. Leukemia 2023; 37:408-421. [PMID: 36509891 PMCID: PMC9898029 DOI: 10.1038/s41375-022-01776-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022]
Abstract
SOX11 overexpression has been associated with aggressive behavior of mantle cell lymphomas (MCL). SOX11 is overexpressed in embryonic and cancer stem cells (CSC) of some tumors. Although CSC have been isolated from primary MCL, their relationship to SOX11 expression and contribution to MCL pathogenesis and clinical evolution remain unknown. Here, we observed enrichment in leukemic and hematopoietic stem cells gene signatures in SOX11+ compared to SOX11- MCL primary cases. Musashi-2 (MSI2) emerged as one of the most significant upregulated stem cell-related genes in SOX11+ MCLs. SOX11 is directly bound to the MSI2 promoter upregulating its expression in vitro. MSI2 intronic enhancers were strongly activated in SOX11+ MCL cell lines and primary cases. MSI2 upregulation was significantly associated with poor overall survival independently of other high-risk features of MCL. MSI2 knockdown decreased the expression of genes related to apoptosis and stem cell features and significantly reduced clonogenic growth, tumor cell survival and chemoresistance in MCL cells. MSI2-knockdown cells had reduced tumorigenic engraftment into mice bone marrow and spleen compared to control cells in xenotransplanted mouse models. Our results suggest that MSI2 might play a key role in sustaining stemness and tumor cell survival, representing a possible novel target for therapeutic interventions in MCL.
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Affiliation(s)
- Marta Sureda-Gómez
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Patricia Balsas
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Marta-Leonor Rodríguez
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Ferran Nadeu
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Anna De Bolòs
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Álvaro Eguileor
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Marta Kulis
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Giancarlo Castellano
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Cristina López
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Eva Giné
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain ,grid.5841.80000 0004 1937 0247Department of Hematology Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Santiago Demajo
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Pedro Jares
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - José I. Martín-Subero
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain ,grid.425902.80000 0000 9601 989XInstitució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Silvia Beà
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain ,grid.410458.c0000 0000 9635 9413Hematopathology Section, Department of Pathology, Hospital Clínic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Elias Campo
- grid.10403.360000000091771775Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain ,grid.410458.c0000 0000 9635 9413Hematopathology Section, Department of Pathology, Hospital Clínic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Virginia Amador
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. .,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain.
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5
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Castaño-Díez S, López-Guerra M, Bosch-Castañeda C, Bataller A, Charry P, Esteban D, Guijarro F, Jiménez-Vicente C, Castillo-Girón C, Cortes A, Martínez-Roca A, Triguero A, Álamo JR, Beà S, Costa D, Colomer D, Rozman M, Esteve J, Díaz-Beyá M. Real-World Data on Chronic Myelomonocytic Leukemia: Clinical and Molecular Characteristics, Treatment, Emerging Drugs, and Patient Outcomes. Cancers (Basel) 2022; 14:cancers14174107. [PMID: 36077644 PMCID: PMC9455040 DOI: 10.3390/cancers14174107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Despite emerging molecular information on chronic myelomonocytic leukemia (CMML), patient outcome remains unsatisfactory and little is known about the transformation to acute myeloid leukemia (AML). In a single-center cohort of 219 CMML patients, we explored the potential correlation between clinical features, gene mutations, and treatment regimens with overall survival (OS) and clonal evolution into AML. The most commonly detected mutations were TET2, SRSF2, ASXL1, and RUNX1. Median OS was 34 months and varied according to age, cytogenetic risk, FAB, CPSS and CPSS-Mol categories, and number of gene mutations. Hypomethylating agents were administered to 37 patients, 18 of whom responded. Allogeneic stem cell transplantation (alloSCT) was performed in 22 patients. Two-year OS after alloSCT was 60.6%. Six patients received targeted therapy with IDH or FLT3 inhibitors, three of whom attained a long-lasting response. AML transformation occurred in 53 patients and the analysis of paired samples showed changes in gene mutation status. Our real-world data emphasize that the outcome of CMML patients is still unsatisfactory and alloSCT remains the only potentially curative treatment. However, targeted therapies show promise in patients with specific gene mutations. Complete molecular characterization can help to improve risk stratification, understand transformation, and personalize therapy.
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Affiliation(s)
- Sandra Castaño-Díez
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- Medical School, University of Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
| | - Mónica López-Guerra
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | | | - Alex Bataller
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- Medical School, University of Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Josep Carreras Leukemia Research Institute, 08916 Badalona, Spain
| | - Paola Charry
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - Daniel Esteban
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - Francesca Guijarro
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- Medical School, University of Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
| | - Carlos Jiménez-Vicente
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - Carlos Castillo-Girón
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - Albert Cortes
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- Hematology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | - Alexandra Martínez-Roca
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
| | - Ana Triguero
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - José Ramón Álamo
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
| | - Silvia Beà
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Dolors Costa
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Dolors Colomer
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - María Rozman
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
| | - Jordi Esteve
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- Medical School, University of Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Josep Carreras Leukemia Research Institute, 08916 Badalona, Spain
| | - Marina Díaz-Beyá
- Hematology and Hematopathology Departments, Hospital Clínic Barcelona, 08036 Barcelona, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain
- Josep Carreras Leukemia Research Institute, 08916 Badalona, Spain
- Correspondence: ; Tel.: +34-9-227-54-28
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6
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Giné E, de la Cruz F, Jiménez Ubieto A, López Jimenez J, Martín García-Sancho A, Terol MJ, González Barca E, Casanova M, de la Fuente A, Marín-Niebla A, Muntañola A, González-López TJ, Aymerich M, Setoain X, Cortés-Romera M, Rotger A, Rodríguez S, Medina Herrera A, García Sanz R, Nadeu F, Beà S, Campo E, López-Guillermo A. Ibrutinib in Combination With Rituximab for Indolent Clinical Forms of Mantle Cell Lymphoma (IMCL-2015): A Multicenter, Open-Label, Single-Arm, Phase II Trial. J Clin Oncol 2022; 40:1196-1205. [PMID: 35030036 PMCID: PMC8987223 DOI: 10.1200/jco.21.02321] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The need for an individualized management of indolent clinical forms in mantle cell lymphoma (MCL) is increasingly recognized. We hypothesized that a tailored treatment with ibrutinib in combination with rituximab (IR) could obtain significant responses in these patients.
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Affiliation(s)
- Eva Giné
- Hematology Department, Hospital Clínic of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain
| | - Fátima de la Cruz
- Hematology Department, Hospital Universitario Virgen del Rocio, Sevilla, Spain
| | - Ana Jiménez Ubieto
- Hematology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | - Alejandro Martín García-Sancho
- Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematology Department, Hospital Clínico Universitario Salamanca, Salamanca, Spain.,Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - M José Terol
- Hematology Department, Hospital Clínico de Valencia, Valencia, Spain.,Institut d'Investigació Sanitària (INCLIVA), Valencia, Spain
| | - Eva González Barca
- Hematology Department, Institut Català d'Oncologia, Hospital Duran i Reynals, Hospitalet de Llobregat, Spain
| | - María Casanova
- Hematology Department, Hospital Costa del Sol Marbella, Marbella, Spain
| | | | - Ana Marín-Niebla
- Hematology Department, Hospital Universitari Vall d'Hebron, VHIO, Barcelona, Spain
| | - Ana Muntañola
- Hematology Department, Hospital Universitari Mútua Terrasa, Terrassa, Spain
| | | | - Marta Aymerich
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematopathology Unit, Hospital Clínic of Barcelona, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - Xavier Setoain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,University of Barcelona, Barcelona, Spain.,Nuclear Medicine Department, Hospital Clínic of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), Madrid, Spain
| | | | - Amanda Rotger
- Nuclear Medicine Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Sonia Rodríguez
- University of Barcelona, Barcelona, Spain.,Radiology Department, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Alejandro Medina Herrera
- Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematology Department, Hospital Clínico Universitario Salamanca, Salamanca, Spain.,Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Salamanca, Spain.,Universidad de Salamanca (USAL), Salamanca, Spain
| | - Ramón García Sanz
- Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematology Department, Hospital Clínico Universitario Salamanca, Salamanca, Spain.,Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Salamanca, Spain.,Universidad de Salamanca (USAL), Salamanca, Spain
| | - Ferran Nadeu
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematopathology Unit, Hospital Clínic of Barcelona, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - Silvia Beà
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematopathology Unit, Hospital Clínic of Barcelona, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - Elías Campo
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,Hematopathology Unit, Hospital Clínic of Barcelona, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - Armando López-Guillermo
- Hematology Department, Hospital Clínic of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red, Cáncer (CIBERONC), Madrid, Spain.,University of Barcelona, Barcelona, Spain
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7
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Bühler MM, Kulis M, Duran‐Ferrer M, Clot G, Nadeu F, Navarro A, López C, Giné E, Beà S, Campo E, Martín‐Subero JI. A SIMPLE EPIGENETIC SIGNATURE DEFINES TWO BIOLOGIC GROUPS OF MANTLE CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.58_2879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. M. Bühler
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - M. Kulis
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | | | - G. Clot
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - F. Nadeu
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - A. Navarro
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - C. López
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - E. Giné
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - S. Beà
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
| | - E. Campo
- Hospital Clínic Barcelona IDIBAPS Barcelona Spain
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8
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Rivas‐Delgado A, López C, Nadeu F, Grau M, Rivero A, Bosch J, Alcoceba M, Gustavo T, Luizaga L, Barcena C, Kelleher N, Martin S, Mozas P, Balague O, Frigola G, Magnano L, Baumann T, Villamor N, Muntañola A, Sancho JM, García‐Sancho AM, Gonzalez‐Barca E, Climent F, Campo E, Giné E, López‐Guillermo A, Beà S. TESTICULAR DIFFUSE LARGE B‐CELL LYMPHOMA: CLINICO‐BIOLOGICAL CHARACTERIZATION, EVALUATION OF TREATMENT RESPONSE AND SURVIVAL. Hematol Oncol 2021. [DOI: 10.1002/hon.15_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Rivas‐Delgado
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - C. López
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
| | - F. Nadeu
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
| | - M. Grau
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
| | - A. Rivero
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - J. Bosch
- Hospital de Bellvitge IDIBELL Pathology Department Barcelona Spain
| | - M. Alcoceba
- Hospital Universitario de Salamanca Hematology Department Salamanca Spain
| | - T. Gustavo
- ICO‐IJC‐Hospital Universitari Germans Trias i Pujol Hematology and Pathology Departments Badalona Spain
| | - L. Luizaga
- Hospital Universitari Mutua de Terrassa Hematology and Pathology Departments Terrasa Spain
| | - C. Barcena
- Hospital Universitario 12 de Octubre Hematology and Pathology Departments Madrid Spain
| | - N. Kelleher
- Institut Català d'Oncologia‐Hospital de Palamos Hematology Department Girona Spain
| | - S. Martin
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
| | - P. Mozas
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - O. Balague
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - G. Frigola
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - L. Magnano
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - T. Baumann
- Hospital Universitario 12 de Octubre Hematology and Pathology Departments Madrid Spain
| | - N. Villamor
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - A. Muntañola
- Hospital Universitari Mutua de Terrassa Hematology and Pathology Departments Terrasa Spain
| | - J. M. Sancho
- ICO‐IJC‐Hospital Universitari Germans Trias i Pujol Hematology and Pathology Departments Badalona Spain
| | | | - E. Gonzalez‐Barca
- Institut Català d’Oncologia‐Hospital Duran i Reynals IDIBELL Universitat de Barcelona Hematology Department L'Hospitalet de Llobregat Spain
| | - F. Climent
- Hospital de Bellvitge IDIBELL Pathology Department Barcelona Spain
| | - E. Campo
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
| | - E. Giné
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - A. López‐Guillermo
- Hospital Clínic de Barcelona Hematology and Pathology Departments Barcelona Spain
| | - S. Beà
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS) Molecular pathology of lymphoid neoplasms Barcelona Spain
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9
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Rivas-Delgado A, Nadeu F, Enjuanes A, Casanueva-Eliceiry S, Mozas P, Magnano L, Castrejón de Anta N, Rovira J, Dlouhy I, Martín S, Osuna M, Rodríguez S, Simó M, Pinyol M, Baumann T, Beà S, Balagué O, Delgado J, Villamor N, Setoain X, Campo E, Giné E, López-Guillermo A. Mutational Landscape and Tumor Burden Assessed by Cell-free DNA in Diffuse Large B-Cell Lymphoma in a Population-Based Study. Clin Cancer Res 2020; 27:513-521. [PMID: 33122345 DOI: 10.1158/1078-0432.ccr-20-2558] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/29/2020] [Accepted: 10/26/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE We analyzed the utility of cell-free DNA (cfDNA) in a prospective population-based cohort to determine the mutational profile, assess tumor burden, and estimate its impact in response rate and outcome in patients with diffuse large B-cell lymphoma (DLBCL). EXPERIMENTAL DESIGN A total of 100 patients were diagnosed with DLBCL during the study period. Mutational status of 112 genes was studied in cfDNA by targeted next-generation sequencing. Paired formalin-fixed, paraffin-embedded samples and volumetric PET/CT were assessed when available. RESULTS Appropriate cfDNA to perform the analyses was obtained in 79 of 100 cases. At least one mutation could be detected in 69 of 79 cases (87%). The sensitivity of cfDNA to detect the mutations was 68% (95% confidence interval, 56.2-78.7). The mutational landscape found in cfDNA samples was highly consistent with that shown in the tissue and allowed genetic classification in 43% of the cases. A higher amount of circulating tumor DNA (ctDNA) significantly correlated with clinical parameters related to tumor burden (elevated lactate dehydrogenase and β2-microglobulin serum levels, advanced stage, and high-risk International Prognostic Index) and total metabolic tumor volume assessed by PET/CT. In patients treated with curative intent, high ctDNA levels (>2.5 log hGE/mL) were associated with lower complete response (65% vs. 96%; P < 0.004), shorter progression-free survival (65% vs. 85%; P = 0.038), and overall survival (73% vs. 100%; P = 0.007) at 2 years, although it did not maintain prognostic value in multivariate analyses. CONCLUSIONS In a population-based prospective DLBCL series, cfDNA resulted as an alternative source to estimate tumor burden and to determine the tumor mutational profile and genetic classification, which have prognostic implications and may contribute to a future tailored treatment.
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Affiliation(s)
- Alfredo Rivas-Delgado
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain. .,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain
| | - Ferran Nadeu
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Anna Enjuanes
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | | | - Pablo Mozas
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Laura Magnano
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | - Jordina Rovira
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Ivan Dlouhy
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Silvia Martín
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain
| | - Miguel Osuna
- Hematopathology Unit, Department of Pathology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Sonia Rodríguez
- Department of Radiology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Marc Simó
- Department of Nuclear Medicine, Instituto Universitario Dexeus, Grupo Quiron Salud, Barcelona, Spain
| | - Magda Pinyol
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Tycho Baumann
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Silvia Beà
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Olga Balagué
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Department of Pathology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Julio Delgado
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Neus Villamor
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Department of Pathology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Xavier Setoain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Nuclear Medicine, Hospital Clínic de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), Madrid, Spain
| | - Elías Campo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Department of Pathology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Eva Giné
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Armando López-Guillermo
- Department of Hematology, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
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10
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Serrat N, Guerrero-Hernández M, Matas-Céspedes A, Yahiaoui A, Valero JG, Nadeu F, Clot G, Di Re M, Corbera-Bellalta M, Magnano L, Rivas-Delgado A, Enjuanes A, Beà S, Cid MC, Campo E, Montero J, Hodson DJ, López-Guillermo A, Colomer D, Tannheimer S, Pérez-Galán P. PI3Kδ inhibition reshapes follicular lymphoma-immune microenvironment cross talk and unleashes the activity of venetoclax. Blood Adv 2020; 4:4217-4231. [PMID: 32898249 PMCID: PMC7479943 DOI: 10.1182/bloodadvances.2020001584] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 07/23/2020] [Indexed: 12/17/2022] Open
Abstract
Despite idelalisib approval in relapsed follicular lymphoma (FL), a complete characterization of the immunomodulatory consequences of phosphatidylinositol 3-kinase δ (PI3Kδ) inhibition, biomarkers of response, and potential combinatorial therapies in FL remain to be established. Using ex vivo cocultures of FL patient biopsies and follicular dendritic cells (FDCs) to mimic the germinal center (n = 42), we uncovered that PI3Kδ inhibition interferes with FDC-induced genes related to angiogenesis, extracellular matrix formation, and transendothelial migration in a subset of FL samples, defining an 18-gene signature fingerprint of idelalisib sensitivity. A common hallmark of idelalisib found in all FL cases was its interference with the CD40/CD40L pathway and induced proliferation, together with the downregulation of proteins crucial for B-T-cell synapses, leading to an inefficient cross talk between FL cells and the supportive T-follicular helper cells (TFH). Moreover, idelalisib downmodulates the chemokine CCL22, hampering the recruitment of TFH and immunosupressive T-regulatory cells to the FL niche, leading to a less supportive and tolerogenic immune microenvironment. Finally, using BH3 profiling, we uncovered that FL-FDC and FL-macrophage cocultures augment tumor addiction to BCL-XL and MCL-1 or BFL-1, respectively, limiting the cytotoxic activity of the BCL-2 inhibitor venetoclax. Idelalisib restored FL dependence on BCL-2 and venetoclax activity. In summary, idelalisib exhibits a patient-dependent activity toward angiogenesis and lymphoma dissemination. In all FL cases, idelalisib exerts a general reshaping of the FL immune microenvironment and restores dependence on BCL-2, predisposing FL to cell death, providing a mechanistic rationale for investigating the combination of PI3Kδ inhibitors and venetoclax in clinical trials.
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Affiliation(s)
- Neus Serrat
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Martina Guerrero-Hernández
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Alba Matas-Céspedes
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Anella Yahiaoui
- Department of Biomarker Sciences, Gilead Sciences, Inc., Seattle, WA
| | - Juan G Valero
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Ferran Nadeu
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Guillem Clot
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Miriam Di Re
- Department of Haematology, Wellcome Medical Research Council Cambridge Stem Cell Institute, Cambridge, United Kingdom
- Department of Haematology, University of Cambridge, Cambridge, United Kingdom
| | - Marc Corbera-Bellalta
- Vasculitis Research Unit, Department of Autoimmune Diseases, Clinical Institute of Medicine and Dermatology, Hospital Clinic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS-CRB CELLEX), Barcelona, Spain
| | - Laura Magnano
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
- Department of Hematology and
| | - Alfredo Rivas-Delgado
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
- Department of Hematology and
| | - Anna Enjuanes
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Silvia Beà
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
| | - Maria C Cid
- Vasculitis Research Unit, Department of Autoimmune Diseases, Clinical Institute of Medicine and Dermatology, Hospital Clinic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS-CRB CELLEX), Barcelona, Spain
| | - Elías Campo
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
- Hematopathology Unit, Department of Pathology, Hospital Clínic-IDIBAPS, Barcelona, Spain; and
| | - Joan Montero
- Department of Nanobioengineering, Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Daniel J Hodson
- Department of Haematology, Wellcome Medical Research Council Cambridge Stem Cell Institute, Cambridge, United Kingdom
- Department of Haematology, University of Cambridge, Cambridge, United Kingdom
| | - Armando López-Guillermo
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
- Department of Hematology and
| | - Dolors Colomer
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
- Hematopathology Unit, Department of Pathology, Hospital Clínic-IDIBAPS, Barcelona, Spain; and
| | - Stacey Tannheimer
- Department of Biomarker Sciences, Gilead Sciences, Inc., Seattle, WA
| | - Patricia Pérez-Galán
- Department of Hematology-Oncology, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red-Oncología, Madrid, Spain
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11
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Sorigue M, Junca J, Ferra C, Marce S, Ruiz-Xivillé N, Pinyol L, Cabezon M, Espasa A, Dominguez D, Lopez-Viaplana L, Ruiz R, Buch J, Plensa E, Mostacedo SZ, Aranda J, Vergara S, Raya M, Granada I, Tapia G, Navarro JT, Beà S, Zamora L. FMOD expression in whole blood aids in distinguishing between chronic lymphocytic leukemia and other leukemic lymphoproliferative disorders. A pilot study. Cytometry B Clin Cytom 2020; 98:421-428. [PMID: 32530577 DOI: 10.1002/cyto.b.21890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 04/25/2020] [Accepted: 05/04/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Within the hematopoietic compartment, fibromodulin (FMOD) is almost exclusively expressed in chronic lymphocytic leukemia (CLL) lymphocytes. We set out to determine whether FMOD could be of help in diagnosing borderline lymphoproliferative disorders (LPD). METHODS We established 3 flow cytometry-defined groups (CLL [n = 65], borderline LPD [n = 28], broadly defined as those with CLLflow score between 35 and -20 or discordant CD43 and CLLflow, and non-CLL LPD [n = 40]). FMOD expression levels were determined by standard RT-PCR in whole-blood samples. Patients were included regardless of lymphocyte count but with tumor burden ≥40%. RESULTS FMOD expression levels distinguished between CLL (median 98.5, interquartile range [IQR] 37.8-195.1) and non-CLL LPD (median 0.012, IQR 0.003-0.033) with a sensitivity and specificity of 1. Most borderline LPDs were CD5/CD23/CD200-positive with no loss of B-cell antigens and negative or partial expression of CD43. 16/22 patients with available cytogenetic analysis showed trisomy 12. In 25/28 (89%) of these patients, FMOD expression levels fell between CLL and non-CLL (median 3.58, IQR 1.06-6.21). DISCUSSION This study could suggest that borderline LPDs may constitute a distinct group laying in the biological spectrum of chronic leukemic LPDs. Future studies will have to confirm these results with other biological data. Quantification of FMOD can potentially be of help in the diagnosis of phenotypically complex LPDs.
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Affiliation(s)
- Marc Sorigue
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Jordi Junca
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Christelle Ferra
- Department of Clinical Haematology, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Silvia Marce
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Neus Ruiz-Xivillé
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Laia Pinyol
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Marta Cabezon
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Andrea Espasa
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Diana Dominguez
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | | | - Rocio Ruiz
- Institut Josep Carreres contra la leucemia, Badalona, Spain
| | - Joan Buch
- Department of Hematology, Hospital de Calella, Calella and ICO-Girona, Girona, Spain
| | | | | | - Jessica Aranda
- Institut Josep Carreres contra la leucemia, Badalona, Spain
| | - Sara Vergara
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Minerva Raya
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Isabel Granada
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Gustavo Tapia
- Department of Pathology, Hospital Germans Trias i Pujol, Badalona, Spain
| | - Jose-Tomas Navarro
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Silvia Beà
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain.,University of Barcelona, Barcelona, Spain
| | - Lurdes Zamora
- Hematology Laboratory, ICO-Hospital Germans Trias i Pujol, Institut de Recerca Josep Carreras, Universitat Autònoma de Barcelona, Badalona, Spain
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12
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Nadeu F, Clot G, Delgado J, Martín-García D, Baumann T, Salaverria I, Beà S, Pinyol M, Jares P, Navarro A, Suárez-Cisneros H, Aymerich M, Rozman M, Villamor N, Colomer D, González M, Alcoceba M, Terol MJ, Navarro B, Colado E, Payer ÁR, Puente XS, López-Otín C, López-Guillermo A, Enjuanes A, Campo E. Clinical impact of the subclonal architecture and mutational complexity in chronic lymphocytic leukemia. Leukemia 2018; 32:645-653. [PMID: 28924241 PMCID: PMC5843898 DOI: 10.1038/leu.2017.291] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/07/2017] [Accepted: 09/05/2017] [Indexed: 12/11/2022]
Abstract
Genome studies of chronic lymphocytic leukemia (CLL) have revealed the remarkable subclonal heterogeneity of the tumors, but the clinical implications of this phenomenon are not well known. We assessed the mutational status of 28 CLL driver genes by deep-targeted next-generation sequencing and copy number alterations (CNA) in 406 previously untreated patients and 48 sequential samples. We detected small subclonal mutations (0.6-25% of cells) in nearly all genes (26/28), and they were the sole alteration in 22% of the mutated cases. CNA tended to be acquired early in the evolution of the disease and remained stable, whereas the mutational heterogeneity increased in a subset of tumors. The prognostic impact of different genes was related to the size of the mutated clone. Combining mutations and CNA, we observed that the accumulation of driver alterations (mutational complexity) gradually shortened the time to first treatment independently of the clonal architecture, IGHV status and Binet stage. Conversely, the overall survival was associated with the increasing subclonal diversity of the tumors but it was related to the age of patients, IGHV and TP53 status of the tumors. In conclusion, our study reveals that both the mutational complexity and subclonal diversity influence the evolution of CLL.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor
- Clonal Evolution/genetics
- DNA Copy Number Variations
- Disease Progression
- Female
- Follow-Up Studies
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/mortality
- Male
- Middle Aged
- Mutation/genetics
- Neoplasm Staging
- Prognosis
- Proportional Hazards Models
- Signal Transduction
- Young Adult
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Affiliation(s)
- F Nadeu
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - G Clot
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - J Delgado
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - D Martín-García
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - T Baumann
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - I Salaverria
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - S Beà
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - M Pinyol
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Unitat de Genòmica, IDIBAPS, Barcelona, Spain
| | - P Jares
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - A Navarro
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | | | - M Aymerich
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - M Rozman
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - N Villamor
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - D Colomer
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
| | - M González
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Biología Molecular e Histocompatibilidad, Hospital Universitario, Salamanca, Spain
| | - M Alcoceba
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Biología Molecular e Histocompatibilidad, Hospital Universitario, Salamanca, Spain
| | - M J Terol
- Unidad de Hematología, Hospital Clínico Universitario, Valencia, Spain
| | - B Navarro
- Unidad de Hematología, Hospital Clínico Universitario, Valencia, Spain
| | - E Colado
- Servicio de Hematología y Hemoterapia, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - ÁR Payer
- Servicio de Hematología y Hemoterapia, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - X S Puente
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología, Universidad de Oviedo, Oviedo, Spain
| | - C López-Otín
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología, Universidad de Oviedo, Oviedo, Spain
| | - A López-Guillermo
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
- Medical School, Universitat de Barcelona, Barcelona, Spain
| | - A Enjuanes
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Unitat de Genòmica, IDIBAPS, Barcelona, Spain
| | - E Campo
- Lymphoid Neoplasms Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Tumores Hematológicos, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Hematology Department, Hospital Clínic, Barcelona, Spain
- Medical School, Universitat de Barcelona, Barcelona, Spain
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13
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Abstract
With the introduction of next-generation sequencing, the genetic landscape of the complex group of B-cell lymphoid malignancies has rapidly been unravelled in recent years. This has provided important information about recurrent genetic events and identified key pathways deregulated in each lymphoma subtype. In parallel, there has been intense search and development of novel types of targeted therapy that 'hit' central mechanisms in lymphoma pathobiology, such as BTK, PI3K or BCL2 inhibitors. In this review, we will outline the current view of the genetic landscape of selected entities: follicular lymphoma, diffuse large B-cell lymphoma, mantle cell lymphoma, chronic lymphocytic leukaemia and marginal zone lymphoma. We will detail recurrent alterations affecting important signalling pathways, that is the B-cell receptor/NF-κB pathway, NOTCH signalling, JAK-STAT signalling, p53/DNA damage response, apoptosis and cell cycle regulation, as well as other perhaps unexpected cellular processes, such as immune regulation, cell migration, epigenetic regulation and RNA processing. Whilst many of these pathways/processes are commonly altered in different lymphoid tumors, albeit at varying frequencies, others are preferentially targeted in selected B-cell malignancies. Some of these genetic lesions are either involved in disease ontogeny or linked to the evolution of each disease and/or specific clinicobiological features, and some of them have been demonstrated to have prognostic and even predictive impact. Future work is especially needed to understand the therapy-resistant disease, particularly in patients treated with targeted therapy, and to identify novel targets and therapeutic strategies in order to realize true precision medicine in this clinically heterogeneous patient group.
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Affiliation(s)
- R Rosenquist
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - S Beà
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), CIBER de Cáncer, Barcelona, Spain
| | - M-Q Du
- Division of Cellular and Molecular Pathology, Department of Pathology, University of Cambridge, Cambridge, UK
| | - B Nadel
- CNRS, INSERM, CIML, Aix Marseille University, Marseille, France
| | - Q Pan-Hammarström
- Division of Clinical Immunology and Transfusion Medicine, Karolinska Institutet at Karolinska University Hospital, Huddinge, Sweden
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14
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Puente XS, Beà S, Valdés-Mas R, Villamor N, Gutiérrez-Abril J, Martín-Subero JI, Munar M, Rubio-Pérez C, Jares P, Aymerich M, Baumann T, Beekman R, Belver L, Carrio A, Castellano G, Clot G, Colado E, Colomer D, Costa D, Delgado J, Enjuanes A, Estivill X, Ferrando AA, Gelpí JL, González B, González S, González M, Gut M, Hernández-Rivas JM, López-Guerra M, Martín-García D, Navarro A, Nicolás P, Orozco M, Payer ÁR, Pinyol M, Pisano DG, Puente DA, Queirós AC, Quesada V, Romeo-Casabona CM, Royo C, Royo R, Rozman M, Russiñol N, Salaverría I, Stamatopoulos K, Stunnenberg HG, Tamborero D, Terol MJ, Valencia A, López-Bigas N, Torrents D, Gut I, López-Guillermo A, López-Otín C, Campo E. Non-coding recurrent mutations in chronic lymphocytic leukaemia. Nature 2015. [DOI: 10.1038/nature14666] [Citation(s) in RCA: 625] [Impact Index Per Article: 69.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Montraveta A, Xargay-Torrent S, López-Guerra M, Rosich L, Pérez-Galán P, Salaverria I, Beà S, Kalko SG, de Frias M, Campàs C, Roué G, Colomer D. Synergistic anti-tumor activity of acadesine (AICAR) in combination with the anti-CD20 monoclonal antibody rituximab in in vivo and in vitro models of mantle cell lymphoma. Oncotarget 2015; 5:726-39. [PMID: 24519895 PMCID: PMC3996675 DOI: 10.18632/oncotarget.1455] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Mantle cell lymphoma (MCL) is considered one of the most challenging lymphoma, with limited responses to current therapies. Acadesine, a nucleoside analogue has shown antitumoral effects in different preclinical cancer models as well as in a recent phase I/II clinical trial conducted in patients with chronic lymphocytic leukemia. Here we observed that acadesine exerted a selective antitumoral activity in the majority of MCL cell lines and primary MCL samples, independently of adverse cytogenetic factors. Moreover, acadesine was highly synergistic, both in vitro and in vivo, with the anti-CD20 monoclonal antibody rituximab, commonly used in combination therapy for MCL. Gene expression profiling analysis in harvested tumors suggested that acadesine modulates immune response, actin cytoskeleton organization and metal binding, pointing out a substantial impact on metabolic processes by the nucleoside analog. Rituximab also induced changes on metal binding and immune responses. The combination of both drugs enhanced the gene signature corresponding to each single agent, showing an enrichment of genes involved in inflammation, metabolic stress, apoptosis and proliferation. These effects could be important as aberrant apoptotic and proinflammatory pathways play a significant role in the pathogenesis of MCL. In summary, our results suggest that acadesine exerts a cytotoxic effect in MCL in combination with rituximab, by decreasing the proliferative and survival signatures of the disease, thus supporting the clinical examination of this strategy in MCL patients.
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Affiliation(s)
- Arnau Montraveta
- Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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16
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Bassaganyas L, Beà S, Escaramís G, Tornador C, Salaverria I, Zapata L, Drechsel O, Ferreira PG, Rodriguez-Santiago B, Tubio JMC, Navarro A, Martín-García D, López C, Martínez-Trillos A, López-Guillermo A, Gut M, Ossowski S, López-Otín C, Campo E, Estivill X. Sporadic and reversible chromothripsis in chronic lymphocytic leukemia revealed by longitudinal genomic analysis. Leukemia 2013; 27:2376-9. [PMID: 23612016 PMCID: PMC3865532 DOI: 10.1038/leu.2013.127] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- L Bassaganyas
- 1] Center for Genomic Regulation (CRG), Barcelona, Spain [2] Pompeu Fabra University (UPF) Barcelona, Spain [3] Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain [4] Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
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17
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Villamor N, Conde L, Martínez-Trillos A, Cazorla M, Navarro A, Beà S, López C, Colomer D, Pinyol M, Aymerich M, Rozman M, Abrisqueta P, Baumann T, Delgado J, Giné E, González-Díaz M, Hernández JM, Colado E, Payer AR, Rayon C, Navarro B, José Terol M, Bosch F, Quesada V, Puente XS, López-Otín C, Jares P, Pereira A, Campo E, López-Guillermo A. NOTCH1 mutations identify a genetic subgroup of chronic lymphocytic leukemia patients with high risk of transformation and poor outcome. Leukemia 2012; 27:1100-6. [DOI: 10.1038/leu.2012.357] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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López-Corral L, Sarasquete ME, Beà S, García-Sanz R, Mateos MV, Corchete LA, Sayagués JM, García EM, Bladé J, Oriol A, Hernández-García MT, Giraldo P, Hernández J, González M, Hernández-Rivas JM, San Miguel JF, Gutiérrez NC. SNP-based mapping arrays reveal high genomic complexity in monoclonal gammopathies, from MGUS to myeloma status. Leukemia 2012; 26:2521-9. [PMID: 22565645 DOI: 10.1038/leu.2012.128] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Genetic events mediating transformation from premalignant monoclonal gammopathies (MG) to multiple myeloma (MM) are unknown. To obtain a comprehensive genomic profile of MG from the early to late stages, we performed high-resolution analysis of purified plasma cells from 20 MGUS, 20 smoldering MM (SMM) and 34 MM by high-density 6.0 SNP array. A progressive increase in the incidence of copy number abnormalities (CNA) from MGUS to SMM and to MM (median 5, 7.5 and 12 per case, respectively) was observed (P=0.006). Gains on 1q, 3p, 6p, 9p, 11q, 19p, 19q and 21q along with 1p, 16q and 22q deletions were significantly less frequent in MGUS than in MM. Although 11q and 21q gains together with 16q and 22q deletions were apparently exclusive of MM status, we observed that these abnormalities were also present in minor subclones in MGUS. Overall, a total of 65 copy number-neutral LOH (CNN-LOH) were detected. Their frequency was higher in active MM than in the asymptomatic entities (P=0.047). A strong association between genetic lesions and fragile sites was also detected. In summary, our study shows an increasing genomic complexity from MGUS to MM and identifies new chromosomal regions involved in CNA and CNN-LOH.
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Affiliation(s)
- L López-Corral
- Servicio de Hematología del Hospital Universitario de Salamanca, IBMCC (USAL-CSIC) e IBSAL, Salamanca, Spain
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19
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Salaverria I, Zettl A, Beà S, Hartmann EM, Dave SS, Wright GW, Boerma EJ, Kluin PM, Ott G, Chan WC, Weisenburger DD, Lopez-Guillermo A, Gascoyne RD, Delabie J, Rimsza LM, Braziel RM, Jaffe ES, Staudt LM, Müller-Hermelink HK, Campo E, Rosenwald A. Chromosomal alterations detected by comparative genomic hybridization in subgroups of gene expression-defined Burkitt's lymphoma. Haematologica 2008; 93:1327-34. [PMID: 18698080 DOI: 10.3324/haematol.13071] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Burkitt's lymphoma is an aggressive B-cell lymphoma characterized by typical morphological, immunophenotypic and molecular features. Gene expression profiling provided a molecular signature of Burkitt's lymphoma, but also demonstrated that a subset of aggressive B-cell lymphomas not fulfilling the current World Health Organization criteria for the diagnosis of Burkitt's lymphoma nonetheless show a molecular signature of Burkitt's lymphoma ('discrepant Burkitt's lymphoma'). Given the different treatment of Burkitt's lymphoma and diffuse large B-cell lymphomas we investigated molecular differences within gene expression-defined Burkitt's lymphoma. DESIGN AND METHODS We studied tumors from 51 Burkitt's lymphoma patients, comprising 26 with classic Burkitt's lymphoma, 17 with atypical Burkitt's lymphoma and 8 with 'discrepant Burkitt's lymphoma', by comparative genomic hybridization and gene expression profiling. RESULTS Classic and atypical Burkitt's lymphoma (excluding 'discrepant Burkitt's lymphoma'), in adult and pediatric cases do not differ in underlying genomic imbalances or gene expression suggesting that these subgroups are molecularly homogeneous. 'Discrepant Burkitt's lymphoma', however, differ dramatically in the absolute number of alterations from classic/atypical Burkitt's lymphoma and from diffuse large B-cell lymphoma. Moreover, this category includes lymphomas that carry both the t(14;18) and t(8;14) translocations and are clinically characterized by presentation in adult patients and an aggressive course. CONCLUSIONS Pediatric and adult Burkitt's lymphoma are molecularly homogeneous, whereas 'discrepant Burkitt's lymphoma' differ in underlying genetic and clinical features from typical/atypical Burkitt's lymphoma. 'Discrepant Burkitt's lymphoma' may therefore form a distinct genetic subgroup of aggressive B-cell lymphomas, which show poor response to multi-agent chemotherapy.
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Affiliation(s)
- Itziar Salaverria
- Institute of Pathology, University of Würzburg, Josef-Schneider-Str. 2 97080 Würzburg, Germany
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20
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Salaverria I, Beà S, Lopez-Guillermo A, Lespinet V, Pinyol M, Burkhardt B, Lamant L, Zettl A, Horsman D, Gascoyne R, Ott G, Siebert R, Delsol G, Campo E. Genomic profiling reveals different genetic aberrations in systemic ALK-positive and ALK-negative anaplastic large cell lymphomas. Br J Haematol 2008; 140:516-26. [PMID: 18275429 DOI: 10.1111/j.1365-2141.2007.06924.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Anaplastic large cell lymphoma (ALCL) is a T/null-cell neoplasm characterized by chromosomal translocations involving the anaplastic lymphoma kinase (ALK) gene (ALK). Tumours with similar morphology and phenotype but negative for ALK have been also recognized. The secondary chromosomal imbalances of these lymphomas are not well known. We have examined 74 ALCL, 43 ALK-positive and 31 ALK-negative, cases by comparative genomic hybridization (CGH), and locus-specific alterations for TP53 and ATM were examined by fluorescence in situ hybridization and real-time quantitative polymerase chain reaction. Chromosomal imbalances were detected in 25 (58%) ALK-positive and 20 (65%) ALK-negative ALCL. ALK-positive ALCL with NPM-ALK or other ALK variant translocations showed a similar profile of secondary genetic alterations. Gains of 17p and 17q24-qter and losses of 4q13-q21, and 11q14 were associated with ALK-positive cases (P = 0.05), whereas gains of 1q and 6p21 were more frequent in ALK-negative tumours (P = 0.03). Gains of chromosome 7 and 6q and 13q losses were seen in both types of tumours. ALCL-negative tumours had a significantly worse prognosis than ALK-positive. However no specific chromosomal alterations were associated with survival. In conclusion, ALK-positive and negative ALCL have different secondary genomic aberrations, suggesting they correspond to different genetic entities.
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Affiliation(s)
- Itziar Salaverria
- Haematopathology Section, Department of Pathology, Hospital Clinic, Istitute d'Inverstigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
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21
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Ferrer A, Salaverria I, Bosch F, Villamor N, Rozman M, Beà S, Giné E, López-Guillermo A, Campo E, Montserrat E. Leukemic involvement is a common feature in mantle cell lymphoma. Cancer 2007; 109:2473-80. [PMID: 17477385 DOI: 10.1002/cncr.22715] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The reported incidence of peripheral blood involvement in patients with mantle cell lymphoma (MCL) ranges from 13% to 77%. The aim of the study was to analyze the prevalence and the biologic and clinical significance of leukemic involvement in a series of patients with MCL. METHODS Leukemic expression was assessed by conventional morphology and flow cytometry (FC) in 48 patients. In addition, comparative genomic hybridization (CGH) was performed in 27 patients. RESULTS At diagnosis, 44 patients (92%) had evidence of leukemic expression by FC, including 8 patients (17%) without morphologically apparent leukemic involvement. Moreover, a lymphocyte count > or =5 x 10(9)/L was observed in 25 cases (52%). The most frequent imbalances detected by CGH were gains of 3q, 7p, 8q, 9q, 12q, and 13q, and losses of 13q, 1p, 9p, 11q, 10p, 17p, 6q, 8p, and 9q. Using a cutoff of 5 x 10(9)/L lymphocytes, cases with lymphocytosis more frequently presented with gains of 3q (P = .02), losses of 10p (P = .05), a low response rate (P = .04), and a short survival (P = .05). CONCLUSIONS Leukemic expression at diagnosis detected by FC was found to be highly frequent in this series of patients with MCL. Although morphologically apparent leukemic expression was not associated with specific chromosomal alterations detected by CGH, a lymphocyte count > or =5 x 10(9)/L was correlated with particular genetic abnormalities and a poor outcome.
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Affiliation(s)
- Ana Ferrer
- Department of Hematology, Hospital Clinic, University of Barcelona, IDIBAPS, Barcelona, Spain
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22
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Camacho E, Beà S, Salaverría I, López-Guillermo A, Puig X, Benavente Y, de Sanjosé S, Campo E, Hernández L. Analysis of Aurora-A and hMPS1 mitotic kinases in mantle cell lymphoma. Int J Cancer 2006; 118:357-63. [PMID: 16080195 DOI: 10.1002/ijc.21370] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Aurora-A and hMPS1 are kinases involved in spindle checkpoint and centrosome duplication regulation and whose alterations have been associated with cell transformation and chromosome instability in different tumor models. In this study, we have examined the possible alterations of these genes in 58 mantle cell lymphomas (MCLs) and 4 MCL-related cell lines. Aurora-A was also examined in 46 diffuse large B-cell lymphomas (DLBCLs). Aurora-A and hMPS1 mRNA expression levels were related to tumor proliferative activity. Interestingly, a MCL case with the highest number or chromosomal imbalances also showed an extremely high value of Aurora-A mRNA expression. No Aurora-A gene amplifications were detected in any tumor or cell line, whereas hemizygous hMPS1 gene deletions were observed in 23% of MCLs and 3 of the 4 cell lines. However, no expression alterations or gene mutations were detected in these cases. The Aurora-A proposed cancer susceptibility polymorphic variant (P31I) was observed with a similar frequency in MCL, DLBCL, chronic lymphocytic leukemia and in the 431 healthy controls. However, the 3 MCLs and 4 DLBCLs with the homozygous variant of this polymorphism had particular clinical characteristics with an unusual early-age presentation and second epithelial malignancies in MCL and extranodal origin in DLBCL. These findings indicate that Aurora-A and hMPS1 aberrations are uncommon in aggressive lymphomas but Aurora-A overexpression may contribute to numerical chromosomal alterations in occasional MCL. Although the Aurora-A P31I polymorphic variant is not directly involved in a genetic predisposition to these lymphomas, it may modulate the clinical presentation of these tumors.
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Affiliation(s)
- Emma Camacho
- Department of Pathology, Hospital Clinic, Institut d'Investigacións Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
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23
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Hernández L, Beà S, Pinyol M, Ott G, Katzenberger T, Rosenwald A, Bosch F, López-Guillermo A, Delabie J, Colomer D, Montserrat E, Campo E. CDK4 and MDM2 gene alterations mainly occur in highly proliferative and aggressive mantle cell lymphomas with wild-type INK4a/ARF locus. Cancer Res 2005; 65:2199-206. [PMID: 15781632 DOI: 10.1158/0008-5472.can-04-1526] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Amplification of 12q13 locus occurs in some mantle cell lymphomas (MCL), potentially involving CDK4 and MDM2 genes. To determine the role of these genes in MCL, we have examined their gene status and expression and their relationship to INK4a/ARF and p53 gene aberrations in 69 tumors. Increased CDK4 gene copy number was detected in 4 of 19 (21%) highly proliferative blastoid variants and was associated with mRNA and protein overexpression. Three additional cases showed mRNA overexpression with no structural alterations of the gene. MDM2 gene overexpression was detected in three blastoid tumors (16%) with no relationship to gene copy gains. INK4a/ARF and p53 aberrations were observed in 13 and 12 tumors, respectively. Four of the seven lymphomas with CDK4 aberrations had concurrent inactivation of p53 gene, whereas only one case had a concomitant homozygous deletion of INK4a/ARF. No other gene alterations were found in the three cases with MDM2 overexpression. Patients with INK4a/ARF deletions or simultaneous aberrations of p53 and CDK4 had a significantly shorter median survival (17 months) than patients with isolated alterations of p53, MDM2, or CDK4 (32 months) and patients with no alterations in any of these genes (77 months). The prognostic impact of the concomitant oncogenic alterations of the p14ARF/p53 and p16INK4a/CDK4 pathways was independent of the proliferation of the tumors. These findings indicate that CDK4 and MDM2 gene alterations mainly occur in MCL with a wild-type INK4a/ARF locus and may contribute to the higher proliferation and more aggressive behavior of the tumors.
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Affiliation(s)
- Luis Hernández
- Department of Pathology and Hematology, Hospital Clinic, Institut d'Investigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
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Tort F, Hernández S, Beà S, Camacho E, Fernández V, Esteller M, Fraga MF, Burek C, Rosenwald A, Hernández L, Campo E. Checkpoint kinase 1 (CHK1) protein and mRNA expression is downregulated in aggressive variants of human lymphoid neoplasms. Leukemia 2005; 19:112-7. [PMID: 15526025 DOI: 10.1038/sj.leu.2403571] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
CHK1: gene encodes for a serine/threonine kinase involved in the regulation of cell cycle progression and DNA damage checkpoints. To determine the role of CHK1 in the pathogenesis of lymphoid neoplasms and its relationship to other DNA damage response genes, we have analyzed the gene status, protein, and mRNA expression in a series of tumors and nonneoplastic lymphoid tissues. CHK1 protein and mRNA expression levels were very low in both reactive tissues and resting lymphoid cells, whereas tumor samples showed a variable pattern of expression related to their proliferative activity. However, seven aggressive tumors showed a dissociate pattern of extremely low or negative protein expression in spite of a high proliferative activity. Four of these tumors were diffuse large B-cell lymphomas (DLCLs) with concordant reduced levels of mRNA, whereas one blastoid mantle cell lymphoma (B-MCL) and two DLCLs had relatively normal levels of mRNA. No gene mutations, deletions, or hypermethylation of the promoter region were detected in any of these cases. In all these tumors ATM, CHK2, and p53 genes were wild type. These findings suggest that CHK1 inactivation in NHLs occurs by loss of protein expression in a subset of aggressive variants alternatively to ATM, CHK2, and p53 alterations.
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Affiliation(s)
- F Tort
- Laboratory of Pathology, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Villaroel 170, 08036 Barcelona, Spain
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25
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López-Guillermo A, Colomo L, Jiménez M, Bosch F, Villamor N, Arenillas L, Muntañola A, Montoto S, Giné E, Colomer D, Beà S, Campo E, Montserrat E. Diffuse large B-cell lymphoma: clinical and biological characterization and outcome according to the nodal or extranodal primary origin. J Clin Oncol 2005; 23:2797-804. [PMID: 15728226 DOI: 10.1200/jco.2005.07.155] [Citation(s) in RCA: 187] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To study the main clinicobiologic features, response, and outcome of patients with diffuse large B-cell lymphoma (DLBCL) according to the primary site, lymph node, or different extranodal organs of the disease. PATIENTS AND METHODS We included 382 patients consecutively diagnosed with DLBCL in a single institution during a 13-year period. Morphology, immunophenotyping, proliferation index, differentiation profile, bcl-2/JH rearrangement, and clinical characteristics were analyzed according to the primary site of the lymphoma. RESULTS Sites of the disease were: lymph node, 222 cases (58%); Waldeyer's ring (WR), 42 (11%); and extranodal sites, 118 (31%), including GI tract in 45 cases. Primary extranodal cases, particularly GI, showed a bcl-6 expression more frequently than nodal cases. Patients with primary WR or GI lymphomas presented with early-stage disease, no marrow infiltration, normal serum lactate dehydrogenase, and low- to low/intermediate-risk international prognostic index (IPI) more frequently than the remainder. Complete response (CR) rate was 63%, with WR and GI lymphomas having a higher CR rate (85% and 80%, respectively) than the other groups. In the whole series, 5-year overall survival (OS) was 52%. Patients with WR or GI lymphomas showed better OS (5-year OS: 77% and 68%, respectively) than patients with nodal or other extranodal sites. In the multivariate analysis, IPI, bulky disease, and beta2-microglobulin were the main variables to predict OS; no nodal or extranodal site maintained their prognostic value. CONCLUSION In the present series, the primary site of disease was associated with particular clinicopathologic features and outcome, though the latter largely depended on other factors.
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Tort F, Hernàndez S, Beà S, Martínez A, Esteller M, Herman JG, Puig X, Camacho E, Sánchez M, Nayach I, Lopez-Guillermo A, Fernández PL, Colomer D, Hernàndez L, Campo E. CHK2-decreased protein expression and infrequent genetic alterations mainly occur in aggressive types of non-Hodgkin lymphomas. Blood 2002; 100:4602-8. [PMID: 12393693 DOI: 10.1182/blood-2002-04-1078] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The CHK2 gene codifies for a serine/threonine kinase that plays a central role in DNA damage response pathways. To determine the potential role of CHK2 alterations in the pathogenesis of lymphoid neoplasms we have examined the gene status, protein, and mRNA expression in a series of tumors and nonneoplastic lymphoid samples. A heterozygous Ile157Thr substitution, also present in the germ line of the patient, was detected in a blastoid mantle cell lymphoma (MCL). CHK2 protein and mRNA expression levels were similar in all types of lymphomas and reactive samples, and these levels were independent of the proliferative activity of the tumors. However, 5 tumors, one typical MCL, 2 blastoid MCLs, and 2 large cell lymphomas, showed marked loss of protein expression, including 2 samples with complete absence of CHK2 protein. These 2 lymphomas showed the highest number of chromosomal imbalances detected by comparative genomic hybridization in the whole series of cases. However, no mutations, deletions, or hypermethylation of the promoter region were identified in any of these tumors. mRNA levels were similar in cases with low and normal protein expression, suggesting a posttranscriptional regulation of the protein in these tumors. CHK2 gene and protein alterations were not related to p53 and ATM gene status. In conclusion, CHK2 alterations are uncommon in malignant lymphomas but occur in a subset of aggressive tumors independently of p53 or ATM alterations. The high number of chromosomal imbalances in tumors with complete absence of CHK2 protein suggests a role of this gene in chromosomal instability in human lymphomas.
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MESH Headings
- Amino Acid Substitution
- Ataxia Telangiectasia Mutated Proteins
- Cell Cycle Proteins
- Cell Division
- Checkpoint Kinase 2
- Chromosome Aberrations
- DNA Methylation
- DNA-Binding Proteins
- Enzyme Induction
- Gene Deletion
- Gene Expression Regulation, Neoplastic
- Genes, p53
- Humans
- Ki-67 Antigen/analysis
- Leukemia, Lymphocytic, Chronic, B-Cell/enzymology
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Lymphoid Tissue/enzymology
- Lymphoma, Large B-Cell, Diffuse/enzymology
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Mantle-Cell/enzymology
- Lymphoma, Mantle-Cell/genetics
- Lymphoma, Non-Hodgkin/enzymology
- Lymphoma, Non-Hodgkin/genetics
- Mutation, Missense
- Neoplasm Proteins/analysis
- Polymorphism, Single-Stranded Conformational
- Protein Kinases/analysis
- Protein Serine-Threonine Kinases/genetics
- RNA, Messenger/biosynthesis
- RNA, Neoplasm/biosynthesis
- Reverse Transcriptase Polymerase Chain Reaction
- Tumor Suppressor Proteins
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Affiliation(s)
- Frederic Tort
- Laboratory of Pathology, Hospital Clinic, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), University of Barcelona, Spain
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27
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Camacho E, Hernández L, Hernández S, Tort F, Bellosillo B, Beà S, Bosch F, Montserrat E, Cardesa A, Fernández PL, Campo E. ATM gene inactivation in mantle cell lymphoma mainly occurs by truncating mutations and missense mutations involving the phosphatidylinositol-3 kinase domain and is associated with increasing numbers of chromosomal imbalances. Blood 2002; 99:238-44. [PMID: 11756177 DOI: 10.1182/blood.v99.1.238] [Citation(s) in RCA: 127] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The ataxia-telangiectasia mutated (ATM) gene codifies for a protein critically involved in the cellular response to DNA damage. ATM alterations have been observed in some sporadic lymphoproliferative disorders. The recurrent 11q22-23 deletions found in mantle cell lymphoma (MCL) suggest that ATM could be inactivated in these lymphomas. In this study, ATM gene alterations and protein expression were examined in 20 and 17 MCL tumor specimens, respectively. Previously, these patients had been examined for p53 and p14(ARF) gene status and analyzed by comparative genomic hybridization. Nine patients had 11q22-23 losses. Eight ATM gene mutations were detected in 7 patients. These alterations were 3 missense mutations in the phosphatidylinositol-3 kinase (PI-3K) domain and 5 truncating mutations, including 3 frameshifts, a nonsense mutation, and a substitution of the initial methionine. All truncating mutations were associated with lack of protein expression. Somatic origin was demonstrated in 3 mutations, whereas one mutation was carried heterozygously in the patient germ line. Chromosomal imbalances were significantly higher in typical MCL with ATM inactivation (7.8 +/- 1.3) than in tumors with the wild-type gene (3 +/- 1.1) (P =.001). Moreover, tumors with bi-allelic ATM alteration were associated with 3q gains (P =.015) and frequent extranodal involvement (P =.049). ATM gene alterations were not related to the histologic variant of the tumors, p53/p14(ARF) gene status, survival, or other clinicopathologic features of the patients. These findings indicate that ATM gene mutations in MCL are mainly truncating or missense mutations involving the PI-3K domain, and that may play a role in the pathogenesis of a subset of these tumors with increased numbers of chromosomal imbalances.
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Affiliation(s)
- Emma Camacho
- Department of Anatomic Pathology, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Spain
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Hernández S, Bessa X, Beà S, Hernández L, Nadal A, Mallofré C, Muntane J, Castells A, Fernández PL, Cardesa A, Campo E. Differential expression of cdc25 cell-cycle-activating phosphatases in human colorectal carcinoma. J Transl Med 2001; 81:465-73. [PMID: 11304565 DOI: 10.1038/labinvest.3780254] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
cdc25 is a family of cell-cycle phosphatases that activate the cyclin-dependent kinases. cdc25A and B, but not C, have oncogenic potential in vitro. In this study, we analyzed the possible implication of cdc25 genes in the progression of colorectal tumors. RNA and DNA were extracted from 34 paired tumor and normal colorectal tissues and examined by Northern blot, RT-PCR, and Southern blot, respectively. Protein expression was analyzed by Western blot in a subset of normal and tumor samples. The expression levels were correlated with the clinicopathologic characteristics and survival of the patients. cdc25B mRNA was overexpressed in 19 carcinomas (56%). A significant correlation was observed between high cdc25B mRNA levels and the relapse-free, overall, and cancer-related survival of the patients. The cdc25B2 splicing variant was detected in 27 carcinomas (79%) but only in 9 normal samples (26%) and was associated with the grade of the differentiation of the tumors. cdc25A mRNA was overexpressed in four tumors (12%) and cdc25C1 mRNA was overexpressed in nine tumors (26%). A new cdc25C2 splicing variant lacking exon 4 and 5 was identified in all of the tumors and in 56% of the normal samples. No amplifications or gene rearrangements of these genes were detected. In conclusion, these findings indicate that cdc25 isoforms and splicing variants are differentially regulated in colorectal carcinomas and may participate in the development of these tumors. Additionally, the correlation between cdc25B mRNA levels and the survival of the patients also suggest that the cdc25B isoform may be involved in the progression of the disease.
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Affiliation(s)
- S Hernández
- Laboratory of Pathology, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
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Beà S, Tort F, Pinyol M, Puig X, Hernández L, Hernández S, Fernandez PL, van Lohuizen M, Colomer D, Campo E. BMI-1 gene amplification and overexpression in hematological malignancies occur mainly in mantle cell lymphomas. Cancer Res 2001; 61:2409-12. [PMID: 11289106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The BMI-1 gene is a putative oncogene belonging to the Polycomb group family that cooperates with c-myc in the generation of mouse lymphomas and seems to participate in cell cycle regulation and senescence by acting as a transcriptional repressor of the INK4a/ARF locus. The BMI-1 gene has been located on chromosome 10p13, a region involved in chromosomal translocations in infant leukemias, and amplified in occasional non-Hodgkin's lymphomas (NHLs) and solid tumors. To determine the possible alterations of this gene in human malignancies, we have examined 160 lymphoproliferative disorders, 13 myeloid leukemias, and 89 carcinomas by Southern blot analysis and detected BMI-1 gene amplification (3- to 7-fold) in 4 of 36 (11%) mantle cell lymphomas (MCLs) with no alterations in the INK4a/ARF locus. BMI-1 and p16INK4a mRNA and protein expression were also studied by real-time quantitative reverse transcription-PCR and Western blot, respectively, in a subset of NHLs. BMI-1 expression was significantly higher in chronic lymphocytic leukemia and MCL than in follicular lymphoma and large B cell lymphoma. The four tumors with gene amplification showed significantly higher mRNA levels than other MCLs and NHLs with the BMI-1 gene in germline configuration. Five additional MCLs also showed very high mRNA levels without gene amplification. A good correlation between BMI-1 mRNA levels and protein expression was observed in all types of lymphomas. No relationship was detected between BMI-1 and p16INK4a mRNA levels. These findings suggest that BMI-1 gene alterations in human neoplasms are uncommon, but they may contribute to the pathogenesis in a subset of malignant lymphomas, particularly of mantle cell type.
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Affiliation(s)
- S Beà
- The Hematopathology Section, Laboratory of Anatomic Pathology, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Spain
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30
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Pinyol M, Hernández L, Martínez A, Cobo F, Hernández S, Beà S, López-Guillermo A, Nayach I, Palacín A, Nadal A, Fernández PL, Montserrat E, Cardesa A, Campo E. INK4a/ARF locus alterations in human non-Hodgkin's lymphomas mainly occur in tumors with wild-type p53 gene. Am J Pathol 2000; 156:1987-96. [PMID: 10854221 PMCID: PMC1850083 DOI: 10.1016/s0002-9440(10)65071-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INK4a/ARF locus codes for two different proteins, p16(INK4a) and p14(ARF), involved in cell cycle regulation. p14(ARF) is considered an upstream regulator of p53 function. To determine the role of these genes in the pathogenesis of human non-Hodgkin's lymphomas we have analyzed exon 1beta, 1alpha, and 2 of the INK4a/ARF locus and p53 gene aberrations in 97 tumors previously characterized for p16(INK4a) alterations. p53 alterations were detected in four of 51 (8%) indolent lymphomas but in 15 of 46 (33%) aggressive tumors. Inactivation of p14(ARF) was always associated with p16(INK4a) alterations. Exon 1beta was concomitantly deleted with exon 1alpha and 2 in eight tumors. One additional lymphoblastic lymphoma showed deletion of exon 1alpha and 2 but retained exon 1beta. No mutations were detected in exon 1alpha and 1beta in any case. Two of the three mutations detected in exon 2 caused a nonsense mutation in the p16(INK4a) reading frame and a missense mutation in the ARF reading frame involving the nucleolar transport domain of the protein. The third mutation was a missense mutation in the p16(INK4a) reading frame, but it was outside the coding region of p14(ARF). Aggressive lymphomas with p14(ARF) inactivation and p53 wild type showed a significantly lower p53 protein expression than tumors with no alteration in any of these genes. In this series of tumors, inactivation of the INK4a/ARF locus mainly occurred in tumors with a wild-type p53 gene because only two lymphomas showed simultaneous aberrations in these genes. Tumors with concomitant alterations of p16(INK4a) and p14(ARF)/p53 genes seem to exhibit a worse clinical behavior than lymphomas with no alterations or isolated inactivation of any of these genes. These findings indicate that p14(ARF) genetic alterations occur in a subset of aggressive NHLs, but they are always associated with p16(INK4a) aberrations. Concomitant disruption of p16(INK4a) and p14(ARF)/p53 regulatory pathways may have a cooperative effect in the progression of these tumors.
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Affiliation(s)
- M Pinyol
- Department of Hematology, University of Barcelona, Spain
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31
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Hernández L, Hernández S, Beà S, Pinyol M, Ferrer A, Bosch F, Nadal A, Fernández PL, Palacín A, Montserrat E, Campo E. c-myc mRNA expression and genomic alterations in mantle cell lymphomas and other nodal non-Hodgkin's lymphomas. Leukemia 1999; 13:2087-93. [PMID: 10602433 DOI: 10.1038/sj.leu.2401599] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cyclin D1 is a weak oncogene that cooperates with c-myc activation in the development of B cell lymphomas in transgenic animals. Cyclin D1 is constantly overexpressed in human mantle cell lymphomas (MCL). However, the status of c-myc gene in these tumors is not known. We have examined the c-myc mRNA expression and genomic alterations, including mutational analysis of exon 1, intron 1, and exon 2 regulatory elements, in a series of 33 MCL, 22 typical and 11 blastoid variants. In addition, c-myc alterations were also examined in 56 nodal non-Hodgkin's lymphomas (NHL). c-myc mRNA overexpression was found in 38% (11/29) of MCL with a slightly higher frequency in blastoid variants (5/10, 50%) than in typical cases (6/19, 31%). Genetic alterations were only found in one blastoid MCL showing a three-fold c-myc gene amplification. In other nodal NHL, c-myc overexpression was found in 24% (7/29) of indolent tumors but in 70% (19/27) of aggressive variants. c-myc Genetic alterations detected in these cases were gene rearrangement and hypermutations in one Burkitt's lymphoma, and individual point mutations in intron 1 or exon 2 in 1/19 (5%) indolent and 7/16 (44%) aggressive variants. These results indicate that c-myc is overexpressed in a subset of MCL, but structural gene alterations are less frequent than in other nodal NHL.
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Affiliation(s)
- L Hernández
- Laboratory of Anatomic Pathology, Hospital Clínic, Institut d'Investigacions Biomédiques 'August Pi i Sunyer' (IDIBAPS), University of Barcelona, Barcelona, Spain
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Hernández L, Pinyol M, Hernández S, Beà S, Pulford K, Rosenwald A, Lamant L, Falini B, Ott G, Mason DY, Delsol G, Campo E. TRK-fused gene (TFG) is a new partner of ALK in anaplastic large cell lymphoma producing two structurally different TFG-ALK translocations. Blood 1999; 94:3265-8. [PMID: 10556217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Anaplastic large cell lymphoma (ALCL) is associated with the t(2;5)(p23;q35), which generates the NPM-ALK fusion gene encoding an 80-kD protein. Several studies have suggested that genes other than NPM may be fused to the ALK gene. Here we have identified TRK-fused gene (TFG) as a new ALK partner in 2 ALCL, 1 of which exhibited a t(2;3)(p23;q21). In these cases, TFG was involved in 2 different fusion genes, TFG-ALK(S) and TFG-ALK(L), coding respectively 85-kD and 97-kD chimeric proteins. The ALK breakpoint in these translocations was the same as in the classic t(2;5) translocation. These 2 proteins were both active in an in vitro tyrosine kinase assay showing that the new cloned cDNA sequences are translated into chimeric proteins with functional activity. These findings indicate that TFG can provide an alternative to NPM as a fusion partner responsible for activation of the ALK and the pathogenesis of ALCL.
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MESH Headings
- Adult
- Amino Acid Sequence
- Anaplastic Lymphoma Kinase
- Artificial Gene Fusion
- Base Sequence
- Chromosomes, Human, Pair 2
- Chromosomes, Human, Pair 5
- DNA, Neoplasm/genetics
- Humans
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/pathology
- Male
- Molecular Sequence Data
- Nuclear Proteins/genetics
- Nucleophosmin
- Protein-Tyrosine Kinases/genetics
- Receptor Protein-Tyrosine Kinases
- Recombinant Fusion Proteins/genetics
- Translocation, Genetic
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Affiliation(s)
- L Hernández
- Laboratory of Pathology, Hospital Clinic, Institut d'Investigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
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Beà S, Ribas M, Hernández JM, Bosch F, Pinyol M, Hernández L, García JL, Flores T, González M, López-Guillermo A, Piris MA, Cardesa A, Montserrat E, Miró R, Campo E. Increased number of chromosomal imbalances and high-level DNA amplifications in mantle cell lymphoma are associated with blastoid variants. Blood 1999; 93:4365-74. [PMID: 10361135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
Mantle cell lymphomas (MCLs) are characterized by 11q13 chromosomal translocations and cyclin D1 overexpression. The secondary genetic and molecular events involved in the progression of these tumors are not well known. In this study, we have analyzed 45 MCLs (32 typical and 13 blastoid variants) by comparative genomic hybridization (CGH). To identify the possible genes included in the abnormal chromosome regions, selected cases were analyzed for P53, P16(INK4a), RB, C-MYC, N-MYC, BCL2, BCL6, CDK4, and BMI-1 gene alterations. The most frequent imbalances detected by CGH were gains of chromosomes 3q (49%), 7p (27%), 8q (22%), 12q (20%), 18q (18%), and 9q34 (16%) and losses of chromosomes 13 (44%), 6q (27%), 1p (24%), 11q14-q23 (22%), 10p14-p15 (18%), 17p (16%), and 9p (16%). High-level DNA amplifications were identified in 11 different regions of the genome, predominantly in 3q27-q29 (13%), 18q23 (9%), and Xq28 (7%). The CGH analysis allowed the identification of regional consensus areas in most of the frequently involved chromosomes. Chromosome gains (P =. 02) and losses (P =.01) and DNA amplifications (P =.015) were significantly higher in blastoid variants. The significant differences between blastoid and typical tumors were gains of 3q, 7p, and 12q, and losses of 17p. CGH losses of 17p correlated with P53 gene deletions and mutations. Similarly, gains of 12q and high-level DNA amplifications of 10p12-p13 were associated with CDK4 and BMI-1 gene amplifications, respectively. One of 2 cases with 8q24 amplification showed C-MYC amplification by Southern blot. Alterations in 2p, 3q, 13, and 18q were not associated with N-MYC, BCL6, RB, or BCL2 alterations, respectively, suggesting that other genes may be the targets of these genetic abnormalities in MCLs. Increased number of gains (0 v 1-4 v >4 gains per case) (P =.002), gains of 3q (P =.02), gains of 12q (P =.03), and losses of 9p (P =. 003) were significantly associated with a shorter survival of the patients. These results indicate that an increased number of chromosome imbalances are associated with blastoid variants of MCLs and may have prognostic significance.
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MESH Headings
- Blotting, Southern
- Chromosome Aberrations
- Chromosome Deletion
- Chromosomes, Human, Pair 12
- Chromosomes, Human, Pair 17
- Chromosomes, Human, Pair 3
- Chromosomes, Human, Pair 7
- Female
- Gene Amplification
- Humans
- Lymphocytes/pathology
- Lymphoma, Non-Hodgkin/genetics
- Lymphoma, Non-Hodgkin/pathology
- Male
- Nucleic Acid Hybridization
- Translocation, Genetic
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Affiliation(s)
- S Beà
- Hematopathology Section, Laboratory of Anatomic Pathology, Department of Hematology, Hospital Clínic, Villarroel, 170, 08036-Barcelona, Spain
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Jares P, Nadal A, Fernández PL, Pinyol M, Hernández L, Cazorla M, Hernández S, Beà S, Cardesa A, Campo E. Disregulation of p16MTS1/CDK4I protein and mRNA expression is associated with gene alterations in squamous-cell carcinoma of the larynx. Int J Cancer 1999; 81:705-11. [PMID: 10328220 DOI: 10.1002/(sici)1097-0215(19990531)81:5<705::aid-ijc6>3.0.co;2-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
To determine the relationship between p16MTS1/CDK4I expression, gene inactivation and 9p21 loss of heterozygosity (LOH) in the development of laryngeal carcinomas, we have examined p16MTS1/CDK4I protein and mRNA expression in a series of 7 normal and 36 tumoral tissues, and the presence of gene alterations and 9p21 LOH. Fifteen tumors (42%) showed low levels of pl6MTS1/CDK4I protein expression (similar to normal samples), 7 carcinomas (19%) expressed higher levels, and no protein expression was seen in 14 tumors (39%). No gene alterations were detected in 11 of the 15 tumors (73%) with protein levels similar to normal tissues. Most of the cases with absence of protein expression (86%) had gene alterations. Of the 7 tumors with protein over-expression, 4 showed frameshift or point mutations (2 cases each). mRNA analysis showed pl6MTS1/CDK4I -gene expression in 12 of 17 carcinomas examined. Gene alterations were detected in 9 of the 12 mRNA-positive tumors and in 2 of the 5 negative carcinomas. Concordant expression of p16alpha and p16beta transcripts was observed in all tumors. 9p21 LOH was detected in 23 carcinomas, 18 of which (78%) showed associated p16MTS1/CDK4I -gene alterations. These results indicate that disregulation of p16MTS1/CDK4I protein and mRNA expression is a frequent phenomenon in laryngeal carcinomas commonly associated with gene alterations and 9p21 LOH. The relative number of discrepancies between protein and mRNA expression and the presence of genetic alterations indicate that a comprehensive study of the gene including all these parameters may be necessary to assess the role of this gene in the pathogenesis of such tumors.
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Affiliation(s)
- P Jares
- Department of Anatomic Pathology, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Spain
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Hernández S, Hernández L, Beà S, Cazorla M, Fernández PL, Nadal A, Muntané J, Mallofré C, Montserrat E, Cardesa A, Campo E. cdc25 cell cycle-activating phosphatases and c-myc expression in human non-Hodgkin's lymphomas. Cancer Res 1998; 58:1762-7. [PMID: 9563496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
cdc25A, cdc25B, and cdc25C are a family of human phosphatases that activate the cyclin-dependent kinases at different points of the cell cycle. cdc25A and cdc25B have been shown to have oncogenic potential, and they have been identified as transcriptional targets of c-myc. To determine the role of cdc25 genes in the pathogenesis of human lymphomas and their possible correlation with c-myc deregulation, we have analyzed the expression of cdc25A, cdc25B, and cdc25C and c-myc genes in a series of 63 non-Hodgkin's lymphomas and 8 nonneoplastic lymphoid tissues. The mRNA levels of the three phosphatases in the nonneoplastic tissues were negative or negligible. cdc25B overexpression was detected in 35 tumors (56%). This overexpression was more frequently found in aggressive (81%) than in indolent lymphomas (36%; P < 0.01). cdc25B overexpression was also significantly associated with a higher proliferative activity of the tumors. No cdc25B gene amplification or rearrangements were detected by Southern blot analysis. A biallelic EcoRI polymorphism of cdc25B gene was identified with a similar distribution in patients with lymphoma and in a normal population. cdc25A was overexpressed in three aggressive lymphomas. No detectable cdc25C mRNA levels were seen in any of the tumors. c-myc was overexpressed in 43% of tumors, and it correlated significantly with the presence of cdc25B up-regulation. Twenty-six of 35 (74%) lymphomas with high levels of cdc25B mRNA also showed c-myc overexpression, whereas 27 of 28 (96%) tumors without detectable or with very low cdc25B expression also had undetectable c-myc levels (P < 0.0001). In addition, a significant linear correlation was found between the cdc25B and c-myc mRNA levels (r = 0.575, P < 0.001). These findings suggest that cdc25B overexpression in non-Hodkin's lymphoma may participate in the pathogenesis of aggressive variants, and it may cooperate with c-myc oncogene in the development of these tumors.
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Affiliation(s)
- S Hernández
- Department of Pathology, Institut de Investigacions Biomèdiques Agustí Pí i Sunyer, University of Barcelona, Spain
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