1
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Moia R, Terzi di Bergamo L, Talotta D, Bomben R, Forestieri G, Spina V, Bruscaggin A, Cosentino C, Almasri M, Dondolin R, Bittolo T, Zucchetto A, Baldoni S, Del Giudice I, Mauro FR, Maffei R, Chiarenza A, Tafuri A, Laureana R, Del Principe MI, Zaja F, D'Arena G, Olivieri J, Rasi S, Mahmoud A, Al Essa W, Awikeh B, Kogila S, Bellia M, Mouhssine S, Sportoletti P, Marasca R, Scarfò L, Ghia P, Gattei V, Foà R, Rossi D, Gaidano G. XPO1 mutations identify early-stage CLL characterized by shorter time to first treatment and enhanced BCR signalling. Br J Haematol 2023; 203:416-425. [PMID: 37580908 DOI: 10.1111/bjh.19052] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Here we evaluated the epigenomic and transcriptomic profile of XPO1 mutant chronic lymphocytic leukaemia (CLL) and their clinical phenotype. By ATAC-seq, chromatin regions that were more accessible in XPO1 mutated CLL were enriched of binding sites for transcription factors regulated by pathways emanating from the B-cell receptor (BCR), including NF-κB signalling, p38-JNK and RAS-RAF-MEK-ERK. XPO1 mutant CLL, consistent with the chromatin accessibility changes, were enriched with transcriptomic features associated with BCR and cytokine signalling. By combining epigenomic and transcriptomic data, MIR155HG, the host gene of miR-155, and MYB, the transcription factor that positively regulates MIR155HG, were upregulated by RNA-seq and their promoters were more accessible by ATAC-seq. To evaluate the clinical impact of XPO1 mutations, we investigated a total of 957 early-stage CLL subdivided into 3 independent cohorts (N = 276, N = 286 and N = 395). Next-generation sequencing analysis identified XPO1 mutations as a novel predictor of shorter time to first treatment (TTFT) in all cohorts. Notably, XPO1 mutations maintained their prognostic value independent of the immunoglobulin heavy chain variable status and early-stage prognostic models. These data suggest that XPO1 mutations, conceivably through increased miR-155 levels, may enhance BCR signalling leading to higher proliferation and shorter TTFT in early-stage CLL.
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Affiliation(s)
- Riccardo Moia
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Lodovico Terzi di Bergamo
- Laboratory of Experimental Hematology, Institute of Oncology Research, Bellinzona, Switzerland
- Bioinformatics Core Unit, Swiss Institute of Bioinformatics, Bellinzona, Switzerland
- Department of Health Science and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Donatella Talotta
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Gabriela Forestieri
- Laboratory of Experimental Hematology, Institute of Oncology Research, Bellinzona, Switzerland
| | - Valeria Spina
- Laboratory of Experimental Hematology, Institute of Oncology Research, Bellinzona, Switzerland
| | - Alessio Bruscaggin
- Laboratory of Experimental Hematology, Institute of Oncology Research, Bellinzona, Switzerland
| | - Chiara Cosentino
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Mohammad Almasri
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Riccardo Dondolin
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Stefano Baldoni
- Institute of Hematology, Center for Hemato-Oncology Research, Santa Maria della Misericordia Hospital, University of Perugia, Perugia, Italy
| | - Ilaria Del Giudice
- Hematology, Department of Translational and Precision Medicine, 'Sapienza' University, Rome, Italy
| | - Francesca Romana Mauro
- Hematology, Department of Translational and Precision Medicine, 'Sapienza' University, Rome, Italy
| | - Rossana Maffei
- Section of Hematology, Department of Medical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Annalisa Chiarenza
- A.O.O. Policlinico "G. Rodolico-S. Marco", U.O.C. Ematologia, Catania, Italy
| | - Agostino Tafuri
- Department of Clinical and Molecular Medicine, Hematology Sant'Andrea University Hospital, Sapienza University of Rome, Rome, Italy
| | | | | | - Francesco Zaja
- SC Ematologia, Azienda Sanitaria Universitaria Integrata, Trieste, Italy
| | - Giovanni D'Arena
- Ematologia, P.O. San Luca, ASL Salerno, Vallo della Lucania, Italy
| | - Jacopo Olivieri
- Azienda Sanitaria Universitaria Friuli Centrale (ASU FC), SOC Clinica Ematologica, Udine, Italy
| | - Silvia Rasi
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Abdurraouf Mahmoud
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Wael Al Essa
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Bassel Awikeh
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Sreekar Kogila
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Matteo Bellia
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Samir Mouhssine
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Paolo Sportoletti
- Institute of Hematology, Center for Hemato-Oncology Research, Santa Maria della Misericordia Hospital, University of Perugia, Perugia, Italy
| | - Roberto Marasca
- Section of Hematology, Department of Medical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Lydia Scarfò
- IRCCS Ospedale San Raffaele, Università Vita Salute San Raffaele, Milan, Italy
| | - Paolo Ghia
- IRCCS Ospedale San Raffaele, Università Vita Salute San Raffaele, Milan, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Robin Foà
- Hematology, Department of Translational and Precision Medicine, 'Sapienza' University, Rome, Italy
| | - Davide Rossi
- Laboratory of Experimental Hematology, Institute of Oncology Research, Bellinzona, Switzerland
| | - Gianluca Gaidano
- Division of Hematology, Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
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Mazzaro C, Visentini M, Gragnani L, Vit F, Tissino E, Pozzo F, Papotti R, Casato M, Zignego AL, Bittolo T, Zucchetto A, Degan M, Bomben R, Gattei V. Persistence of monoclonal B-cell expansion and intraclonal diversification despite virus eradication in patients affected by hepatitis C virus-associated lymphoproliferative disorders. Br J Haematol 2023; 203:237-243. [PMID: 37491625 DOI: 10.1111/bjh.19002] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/21/2023] [Accepted: 07/09/2023] [Indexed: 07/27/2023]
Abstract
We investigated 23 hepatitis C virus (HCV)-infected patients with overt lymphoproliferative diseases (15 cases) or monoclonal B lymphocytosis (8 cases) treated with direct agent antiviral (DAAs) per clinical practice. DAA therapy yielded undetectable HCV-RNA, the complete response of cryoglobulinemia vasculitis and related signs, whilst the presence of B-cell clones (evaluated by flow cytometry, IGHV, and BCL2-IGH rearrangements), detected in 19/23 cases at baseline, was maintained (17/19). Similarly, IGHV intraclonal diversification, supporting an antigen-driven selection mechanism, was identified in B-cell clones at baseline and end of follow-up. DAA therapy alone, despite HCV eradication and good immunological responses, was less effective on the pathological B-cell clones.
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Affiliation(s)
- Cesare Mazzaro
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Marcella Visentini
- Division of Clinical Immunology, Department of Internal Medicine, Sapienza Unversity of Rome, Rome, Italy
| | - Laura Gragnani
- Department of Translational Research and New Technologies in Medicine and Surgery, Medical School, University of Pisa, Pisa, Italy
| | - Filippo Vit
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Erika Tissino
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Robel Papotti
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Milvia Casato
- Division of Clinical Immunology, Department of Internal Medicine, Sapienza Unversity of Rome, Rome, Italy
| | - Anna Linda Zignego
- Centro Manifestazioni Sistemiche da Virus Epatitici, University of Florence, Florence, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
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Capolla S, Argenziano M, Bozzer S, D’Agaro T, Bittolo T, De Leo L, Not T, Busato D, Dal Bo M, Toffoli G, Cavalli R, Gattei V, Bomben R, Macor P. Targeted chitosan nanobubbles as a strategy to down-regulate microRNA-17 into B-cell lymphoma models. Front Immunol 2023; 14:1200310. [PMID: 37359561 PMCID: PMC10285521 DOI: 10.3389/fimmu.2023.1200310] [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: 04/04/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction MicroRNAs represent interesting targets for new therapies because their altered expression influences tumor development and progression. miR-17 is a prototype of onco-miRNA, known to be overexpressed in B-cell non-Hodgkin lymphoma (B-NHL) with peculiar clinic-biological features. AntagomiR molecules have been largely studied to repress the regulatory functions of up-regulated onco-miRNAs, but their clinical use is mainly limited by their rapid degradation, kidney elimination and poor cellular uptake when injected as naked oligonucleotides. Methods To overcome these problems, we exploited CD20 targeted chitosan nanobubbles (NBs) for a preferential and safe delivery of antagomiR17 to B-NHL cells. Results Positively charged 400 nm-sized nanobubbles (NBs) represent a stable and effective nanoplatform for antagomiR encapsulation and specific release into B-NHL cells. NBs rapidly accumulated in tumor microenvironment, but only those conjugated with a targeting system (antiCD20 antibodies) were internalized into B-NHL cells, releasing antagomiR17 in the cytoplasm, both in vitro and in vivo. The result is the down-regulation of miR-17 level and the reduction in tumor burden in a human-mouse B-NHL model, without any documented side effects. Discussion Anti-CD20 targeted NBs investigated in this study showed physico-chemical and stability properties suitable for antagomiR17 delivery in vivo and represent a useful nanoplatform to address B-cell malignancies or other cancers through the modification of their surface with specific targeting antibodies.
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Affiliation(s)
- Sara Capolla
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Monica Argenziano
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Turin, Italy
| | - Sara Bozzer
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Tiziana D’Agaro
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Luigina De Leo
- Department of Pediatrics, Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Burlo Garofolo, Trieste, Italy
| | - Tarcisio Not
- Department of Pediatrics, Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Burlo Garofolo, Trieste, Italy
| | - Davide Busato
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Michele Dal Bo
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Roberta Cavalli
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Turin, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Paolo Macor
- Department of Life Sciences, University of Trieste, Trieste, Italy
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Bomben R, Zucchetto A, Pozzo F, Tissino E, Bittolo T, Olivieri J, Chiarenza A, Zaja F, Del Principe MI, Rossi D, Gattei V. TP53 Mutations and Clinical Outcome in Chronic Lymphocytic Leukemia: Is a Threshold Still Needed? Hemasphere 2023; 7:e855. [PMID: 37034005 PMCID: PMC10079334 DOI: 10.1097/hs9.0000000000000855] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Affiliation(s)
- Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Erika Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Jacopo Olivieri
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari “Carlo Melzi” DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | | | - Francesco Zaja
- Department of Medical, Surgical and Health Sciences, University of Trieste, Italy
| | | | - Davide Rossi
- Haematology, Institute of Oncology Research, Bellinzona, Switzerland
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
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5
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Bomben R, Rossi FM, Vit F, Bittolo T, Zucchetto A, Papotti R, Tissino E, Pozzo F, Degan M, Polesel J, Bulian P, Marasca R, Reda G, Laurenti L, Olivieri J, Chiarenza A, Laureana R, Postorino M, Del Principe MI, Cuneo A, Gentile M, Morabito F, Fronza G, Tafuri A, Zaja F, Foà R, Di Raimondo F, Del Poeta G, Gattei V. Clinical impact of TP53 disruption in chronic lymphocytic leukemia patients treated with ibrutinib: a campus CLL study. Leukemia 2023; 37:914-918. [PMID: 36807650 PMCID: PMC10079531 DOI: 10.1038/s41375-023-01845-9] [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] [Received: 09/12/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/20/2023]
Affiliation(s)
- Riccardo Bomben
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy.
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Filippo Vit
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Robel Papotti
- International PhD School in Clinical and Experimental Medicine, University of Modena and Reggio Emilia, Modena, Italy.,Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Erika Tissino
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Pietro Bulian
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Roberto Marasca
- Hematology Unit, Department of Oncology and Hematology, Azienda-Ospedaliero Universitaria (AOU) of Modena, Policlinico, Modena, Italy.,Department of Medical and Surgical Sciences, University of Modena e Reggio Emilia, Modena, Italy
| | - Gianluigi Reda
- Division of Ematologia, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Luca Laurenti
- Fondazione Universitaria Policlinico A Gemelli di Roma, Roma, Italy
| | - Jacopo Olivieri
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi" DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - Annalisa Chiarenza
- Division of Hematology, Policlinico, Department of Surgery and Medical Specialties, University of Catania, Catania, Italy
| | | | | | | | - Antonio Cuneo
- Hematology Section, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Massimo Gentile
- Hematology Unit AO of Cosenza, Cosenza, Italy.,Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Fortunato Morabito
- Hematology Unit AO of Cosenza, Cosenza, Italy.,Hematology Oncology Department, Augusta Victoria Hospital, East Jerusalem, Israel
| | - Gilberto Fronza
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Agostino Tafuri
- Department of Clinical and Molecular Medicine and Hematology, Sant'Andrea - University Hospital - Sapienza, University of Rome, Rome, Italy
| | - Francesco Zaja
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Robin Foà
- Hematology, Department of Translational and Precision Medicine, 'Sapienza' University, Rome, Italy
| | - Francesco Di Raimondo
- Division of Hematology, Policlinico, Department of Surgery and Medical Specialties, University of Catania, Catania, Italy
| | | | - Valter Gattei
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy.
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Vendramini E, Bomben R, Pozzo F, Bittolo T, Tissino E, Gattei V, Zucchetto A. KRAS and RAS-MAPK Pathway Deregulation in Mature B Cell Lymphoproliferative Disorders. Cancers (Basel) 2022; 14:cancers14030666. [PMID: 35158933 PMCID: PMC8833570 DOI: 10.3390/cancers14030666] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023] Open
Abstract
KRAS mutations account for the most frequent mutations in human cancers, and are generally correlated with disease aggressiveness, poor prognosis, and poor response to therapies. KRAS is required for adult hematopoiesis and plays a key role in B cell development and mature B cell proliferation and survival, proved to be critical for B cell receptor-induced ERK pathway activation. In mature B cell neoplasms, commonly seen in adults, KRAS and RAS-MAPK pathway aberrations occur in a relevant fraction of patients, reaching high recurrence in some specific subtypes like multiple myeloma and hairy cell leukemia. As inhibitors targeting the RAS-MAPK pathway are being developed and improved, it is of outmost importance to precisely identify all subgroups of patients that could potentially benefit from their use. Herein, we review the role of KRAS and RAS-MAPK signaling in malignant hematopoiesis, focusing on mature B cell lymphoproliferative disorders. We discuss KRAS and RAS-MAPK pathway aberrations describing type, incidence, mutual exclusion with other genetic abnormalities, and association with prognosis. We review the current therapeutic strategies applied in mature B cell neoplasms to counteract RAS-MAPK signaling in pre-clinical and clinical studies, including most promising combination therapies. We finally present an overview of genetically engineered mouse models bearing KRAS and RAS-MAPK pathway aberrations in the hematopoietic compartment, which are valuable tools in the understanding of cancer biology and etiology.
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7
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Bomben R, Rossi FM, Vit F, Bittolo T, D'Agaro T, Zucchetto A, Tissino E, Pozzo F, Vendramini E, Degan M, Zaina E, Cattarossi I, Varaschin P, Nanni P, Berton M, Braida A, Polesel J, Cohen JA, Santinelli E, Biagi A, Gentile M, Morabito F, Fronza G, Pozzato G, D'Arena G, Olivieri J, Bulian P, Pepper C, Hockaday A, Schuh A, Hillmen P, Rossi D, Chiarenza A, Zaja F, Di Raimondo F, Del Poeta G, Gattei V. TP53 Mutations with Low Variant Allele Frequency Predict Short Survival in Chronic Lymphocytic Leukemia. Clin Cancer Res 2021; 27:5566-5575. [PMID: 34285062 DOI: 10.1158/1078-0432.ccr-21-0701] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/10/2021] [Accepted: 07/15/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE In chronic lymphocytic leukemia (CLL), TP53 mutations are associated with reduced survival and resistance to standard chemoimmunotherapy (CIT). Nevertheless, the clinical impact of subclonal TP53 mutations below 10% to 15% variant allele frequency (VAF) remains unclear. EXPERIMENTAL DESIGN Using a training/validation approach, we retrospectively analyzed the clinical and biological features of TP53 mutations above (high-VAF) or below (low-VAF) the previously reported 10.0% VAF threshold, as determined by deep next-generation sequencing. Clinical impact of low-VAF TP53 mutations was also confirmed in a cohort (n = 251) of CLL treated with fludarabine-cyclophosphamide-rituximab (FCR) or FCR-like regimens from two UK trials. RESULTS In the training cohort, 97 of 684 patients bore 152 TP53 mutations, while in the validation cohort, 71 of 536 patients had 109 TP53 mutations. In both cohorts, patients with the TP53 mutation experienced significantly shorter overall survival (OS) than TP53 wild-type patients, regardless of the TP53 mutation VAF. By combining TP53 mutation and 17p13.1 deletion (del17p) data in the total cohort (n = 1,220), 113 cases were TP53 mutated only (73/113 with low-VAF mutations), 55 del17p/TP53 mutated (3/55 with low-VAF mutations), 20 del17p only, and 1,032 (84.6%) TP53 wild-type. A model including low-VAF cases outperformed the canonical model, which considered only high-VAF cases (c-indices 0.643 vs. 0.603, P < 0.0001), and improved the prognostic risk stratification of CLL International Prognostic Index. Clinical results were confirmed in CIT-treated cases (n = 552) from the retrospective cohort, and the UK trials cohort. CONCLUSIONS TP53 mutations affected OS regardless of VAF. This finding can be used to update the definition of TP53 mutated CLL for clinical purposes.
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Affiliation(s)
- Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy.
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Filippo Vit
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
- Department of Life Science, University of Trieste, Trieste, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Tiziana D'Agaro
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Erika Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Elena Vendramini
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Eva Zaina
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Ilaria Cattarossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Paola Varaschin
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Paola Nanni
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Michele Berton
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Alessandra Braida
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Jared A Cohen
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | | | - Annalisa Biagi
- Division of Haematology, University of Tor Vergata, Rome, Italy
| | | | - Fortunato Morabito
- Biothecnology Research Unit, AO of Cosenza, Cosenza, Italy
- Haematology and Bone Marrow Transplant Unit, Haemato-Oncology Department, Augusta Victoria Hospital, East Jerusalem, Israel
| | - Gilberto Fronza
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Gabriele Pozzato
- Department of Medical, Surgical and Health Sciences, University of Trieste, Italy
| | - Giovanni D'Arena
- Haematology Unit, Presidio Ospedaliero S. Luca, ASL Salerno, Italy
| | - Jacopo Olivieri
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi" DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - Pietro Bulian
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy
| | - Chris Pepper
- University of Sussex, Brighton and Sussex Medical School, Brighton, United Kingdom
| | - Anna Hockaday
- Clinical Trials Research Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, United Kingdom
| | - Anna Schuh
- Molecular Diagnostic Centre, Department of Oncology, University of Oxford, Oxford, United Kingdom
- Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Peter Hillmen
- Section of Experimental Haematology, Leeds Institute of Cancer and Pathology (LICAP), University of Leeds, Leeds, United Kingdom
| | - Davide Rossi
- Haematology, Institute of Oncology Research, Bellinzona, Switzerland
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | | | - Francesco Zaja
- Department of Medical, Surgical and Health Sciences, University of Trieste, Italy
| | | | | | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano (PN), Italy.
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8
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Terzi di Bergamo L, Forestieri G, Loh JW, Singh A, Spina V, Zucchetto A, Condoluci A, Faderl M, Koch R, Bruscaggin A, Pini K, Wu W, Piffaretti D, Bittolo T, Tissino E, Paoli L, Deambrogi C, Frustaci AM, Autore F, Merli M, Scarfò L, Rasi S, Passweg J, Moia R, Martines C, Ghia P, Cavalli F, Zucca E, Gerber B, Gillessen S, Stüssi G, Montillo M, Passamonti F, Gregor M, Laurenti L, Tedeschi A, Gaidano G, Efremov D, Gattei V, Khiabanian H, Rossi D. ADAPTATION OF CHRONIC LYMPHOCYTIC LEUKEMIA TO IBRUTINIB IS MEDIATED BY EPIGENETIC PLASTICITY OF RESIDUAL DISEASE AND BY‐PASS SIGNALING VIA MAPK PATHWAY. Hematol Oncol 2021. [DOI: 10.1002/hon.29_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: 11/06/2022]
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9
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Pozzo F, Bittolo T, Tissino E, Vit F, Vendramini E, Laurenti L, D'Arena G, Olivieri J, Pozzato G, Zaja F, Chiarenza A, Di Raimondo F, Zucchetto A, Bomben R, Rossi FM, Del Poeta G, Dal Bo M, Gattei V. <i>SF3B1</i>-mutated chronic lymphocytic leukemia shows evidence of NOTCH1 pathway activation including CD20 downregulation. Haematologica 2020; 106:3125-3135. [PMID: 33121237 PMCID: PMC8634191 DOI: 10.3324/haematol.2020.261891] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Received: 06/11/2020] [Indexed: 11/09/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) is characterized by low CD20 expression, in part explained by an epigenetic-driven downregulation triggered by mutations of the NOTCH1 gene. In the present study, by taking advantage of a wide and well-characterized CLL cohort (n=537), we demonstrate that CD20 expression is downregulated in SF3B1-mutated CLL to an extent similar to NOTCH1-mutated CLL. In fact, SF3B1-mutated CLL cells show common features with NOTCH1- mutated CLL cells, including a gene expression profile enriched in NOTCH1-related gene sets and elevated expression of the active intracytoplasmic NOTCH1. Activation of the NOTCH1 signaling and downregulation of surface CD20 in SF3B1-mutated CLL cells correlate with overexpression of an alternatively spliced form of DVL2, a component of the Wnt pathway and negative regulator of the NOTCH1 pathway. These findings were confirmed by separately analyzing the CD20dim and CD20bright cell fractions from SF3B1-mutated cases as well as by DVL2 knockout experiments in CLL-like cell models. Together, the clinical and biological features that characterize NOTCH1-mutated CLL may also be recapitulated in SF3B1-mutated CLL, contributing to explain the poor prognosis of this CLL subset and providing the rationale for expanding therapies based on novel agents to SF3B1-mutated CLL.
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Affiliation(s)
- Federico Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy.
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Erika Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Filippo Vit
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy; University of Trieste, Trieste, Italy
| | - Elena Vendramini
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Luca Laurenti
- Hematology Institute, Catholic University of the Sacred Heart, Fondazione Policlinico A. Gemelli, Rome, Italy
| | - Giovanni D'Arena
- Hematology Service, S. Luca Hospital, Vallo Della Lucania (SA), Italy
| | - Jacopo Olivieri
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi", Azienda Sanitaria Universitaria Integrata di Udine, Italy
| | - Gabriele Pozzato
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Trieste, Italy
| | - Francesco Zaja
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Trieste, Italy
| | | | | | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Giovanni Del Poeta
- Division of Hematology, S. Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - Michele Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano (PN), Italy.
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10
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D'Agaro T, Zucchetto A, Vit F, Bittolo T, Tissino E, Rossi FM, Degan M, Zaja F, Bulian P, Bo MD, Ferrero S, Ladetto M, Zamò A, Gattei V, Bomben R. A B-cell receptor-related gene signature predicts response to ibrutinib treatment in mantle cell lymphoma cell lines. Haematologica 2019; 104:e410-e414. [PMID: 30819916 DOI: 10.3324/haematol.2018.212811] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Tiziana D'Agaro
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Filippo Vit
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano.,Department of Life Science, University of Trieste, Trieste
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Erika Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Massimo Degan
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Francesco Zaja
- Department of Internal Medicine and Haematology, Maggiore General Hospital, University of Trieste, Trieste
| | - Pietro Bulian
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Michele Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Simone Ferrero
- Department of Molecular Biotechnologies and Health Sciences, Hematology Division 1, University of Torino, Torino.,Hematology Division 1, AOU "Città della Salute e della Scienza di Torino" University-Hospital, Torino
| | - Marco Ladetto
- Department of Molecular Biotechnologies and Health Sciences, Hematology Division 1, University of Torino, Torino.,SC Ematologia Azienda Ospedaliera Nazionale SS. Antonio e Biagio e Cesare Arrigo, Alessandria
| | - Alberto Zamò
- Department of Oncology, University of Torino, Torino, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano
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11
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Benedetti D, Tissino E, Pozzo F, Bittolo T, Caldana C, Perini C, Martorelli D, Bravin V, D’Agaro T, Rossi FM, Bomben R, Santinelli E, Zaja F, Pozzato G, Chiarenza A, Di Raimondo F, Del Poeta G, Rossi D, Gaidano G, Dal Bo M, Gattei V, Zucchetto A. NOTCH1 mutations are associated with high CD49d expression in chronic lymphocytic leukemia: link between the NOTCH1 and the NF-κB pathways. Leukemia 2017; 32:654-662. [DOI: 10.1038/leu.2017.296] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/23/2017] [Accepted: 09/08/2017] [Indexed: 12/16/2022]
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12
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Bulian P, Bomben R, Bo MD, Zucchetto A, Rossi FM, Degan M, Pozzo F, Bittolo T, Bravin V, D'Agaro T, Cerri M, Chiarenza A, Chaffee KG, Condoluci A, D'Arena G, Spina M, Zaja F, Pozzato G, Di Raimondo F, Rossi D, Poeta GD, Gaidano G, Shanafelt TD, Gattei V. Mutational status of IGHV is the most reliable prognostic marker in trisomy 12 chronic lymphocytic leukemia. Haematologica 2017; 102:e443-e446. [PMID: 28751560 DOI: 10.3324/haematol.2017.170340] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Pietro Bulian
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Michele Dal Bo
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Vanessa Bravin
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Tiziana D'Agaro
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
| | - Michaela Cerri
- Division of Hematology - Department of Translational Medicine - Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | | | - Kari G Chaffee
- Department of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Adalgisa Condoluci
- Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland
| | | | - Michele Spina
- Oncologia Medica A IRCCS, Centro di Riferimento Oncologico, Aviano, Italy
| | - Francesco Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi" DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - Gabriele Pozzato
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Italy
| | | | - Davide Rossi
- Oncology Institute of Southern Switzerland (IOSI), Bellinzona, Switzerland
| | - Giovanni Del Poeta
- Division of Hematology, S. Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - Gianluca Gaidano
- Division of Hematology - Department of Translational Medicine - Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | | | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, IRCCS Centro di Riferimento Oncologico, Aviano, Italy
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13
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D'Agaro T, Bittolo T, Bravin V, Dal Bo M, Pozzo F, Bulian P, Rossi FM, Zucchetto A, Degan M, D'Arena G, Chiarenza A, Zaja F, Pozzato G, Di Raimondo F, Rossi D, Gaidano G, Del Poeta G, Gattei V, Bomben R. NOTCH1 mutational status in chronic lymphocytic leukaemia: clinical relevance of subclonal mutations and mutation types. Br J Haematol 2017; 182:597-602. [PMID: 28699643 DOI: 10.1111/bjh.14843] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tiziana D'Agaro
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Tamara Bittolo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Vanessa Bravin
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Michele Dal Bo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Pietro Bulian
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Francesca M Rossi
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Giovanni D'Arena
- Onco-Haematology Department, Centro di Riferimento Oncologico della Basilicata, I.R.C.C.S., Rionero in Vulture, Italy
| | | | - Francesco Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi" DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - Gabriele Pozzato
- Department of Internal Medicine and Haematology, Maggiore General Hospital, University of Trieste, Trieste, Italy
| | | | - Davide Rossi
- Haematology, Institute of Oncology Research and Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Gianluca Gaidano
- Division of Haematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Giovanni Del Poeta
- Division of Haematology, S. Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Haematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, PN, Italy
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14
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Pozzo F, Bittolo T, Vendramini E, Bomben R, Bulian P, Rossi F, Zucchetto A, Tissino E, Degan M, D'Arena G, Di Raimondo F, Zaja F, Pozzato G, Rossi D, Gaidano G, Del Poeta G, Gattei V, Dal Bo M. NOTCH1
MUTATED CHRONIC LYMPHOCYTIC LEUKEMIA CELLS ARE CHARACTERIZED BY a MYC
-RELATED OVEREXPRESSION OF NUCLEOPHOSMIN-1 AND RIBOSOME ASSOCIATED COMPONENTS. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F. Pozzo
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - T. Bittolo
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - E. Vendramini
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - R. Bomben
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - P. Bulian
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - F.M. Rossi
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - A. Zucchetto
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - E. Tissino
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - M. Degan
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - G. D'Arena
- Onco-Hematology Department; IRCCS “Centro di Riferimento Oncologico della Basilicata”; Rionero in Vulture Italy
| | - F. Di Raimondo
- Division of Hematology; Ferrarotto Hospital; Catania Italy
| | - F. Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari; Azienda Ospedaliera Universitaria S. Maria Misericordia; Udine Italy
| | - G. Pozzato
- Department of Internal Medicine and Hematology; Maggiore General Hospital; Trieste Italy
| | - D. Rossi
- Hematology; Institute of Oncology Research and Oncology Institute of Southern Switzerland; Bellinzona Switzerland
| | - G. Gaidano
- Division of Hematology-Department of Translational Medicine; University of Eastern Piedmont; Novara Italy
| | - G. Del Poeta
- Division of Hematology; S.Eugenio Hospital and University of Tor Vergata; Rome Italy
| | - V. Gattei
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
| | - M. Dal Bo
- Clinical and Experimental Onco-Hematology Unit; Centro di Riferimento Oncologico, I.R.C.C.S; Aviano Italy
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15
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Bittolo T, Pozzo F, Bomben R, D'Agaro T, Bravin V, Bulian P, Rossi FM, Zucchetto A, Degan M, Macor P, D'Arena G, Chiarenza A, Zaja F, Pozzato G, Di Raimondo F, Rossi D, Gaidano G, Del Poeta G, Gattei V, Dal Bo M. Mutations in the 3' untranslated region of NOTCH1 are associated with low CD20 expression levels chronic lymphocytic leukemia. Haematologica 2017; 102:e305-e309. [PMID: 28550186 DOI: 10.3324/haematol.2016.162594] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Tamara Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Federico Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Riccardo Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Tiziana D'Agaro
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Vanessa Bravin
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Pietro Bulian
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Francesca Maria Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Antonella Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Massimo Degan
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Paolo Macor
- Department of Life Sciences, University of Trieste, Italy
| | - Giovanni D'Arena
- Onco-Hematology Department, Centro di Riferimento Oncologico della Basilicata, I.R.C.C.S., Rionero in Vulture, Italy
| | | | - Francesco Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari "Carlo Melzi" DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - Gabriele Pozzato
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Italy
| | | | - Davide Rossi
- Hematology, Institute of Oncology Research and Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Gianluca Gaidano
- Division of Hematology-Department of Translational Medicine -University of Eastern Piedmont, Novara, Italy
| | - Giovanni Del Poeta
- Division of Hematology, S. Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - Michele Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
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16
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Pozzo F, Bittolo T, Vendramini E, Bomben R, Bulian P, Rossi FM, Zucchetto A, Tissino E, Degan M, D'Arena G, Di Raimondo F, Zaja F, Pozzato G, Rossi D, Gaidano G, Del Poeta G, Gattei V, Dal Bo M. NOTCH1-mutated chronic lymphocytic leukemia cells are characterized by a MYC-related overexpression of nucleophosmin 1 and ribosome-associated components. Leukemia 2017; 31:2407-2415. [PMID: 28321119 DOI: 10.1038/leu.2017.90] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 12/24/2022]
Abstract
In chronic lymphocytic leukemia (CLL), the mechanisms controlling cell growth and proliferation in the presence of NOTCH1 mutations remain largely unexplored. By performing a gene expression profile of NOTCH1-mutated (NOTCH1-mut) versus NOTCH1 wild-type CLL, we identified a gene signature of NOTCH1-mut CLL characterized by the upregulation of genes related to ribosome biogenesis, such as nucleophosmin 1 (NPM1) and ribosomal proteins (RNPs). Activation of NOTCH1 signaling by ethylenediaminetetraacetic acid or by coculture with JAGGED1-expressing stromal cells increased NPM1 expression, and inhibition of NOTCH1 signaling by either NOTCH1-specific small interfering RNA (siRNA) or γ-secretase inhibitor reduced NPM1 expression. Bioinformatic analyses and in vitro activation/inhibition of NOTCH1 signaling suggested a role of MYC as a mediator of NOTCH1 effects over NPM1 and RNP expression in NOTCH1-mut CLL. Chromatin immunoprecipitation experiments performed on NOTCH1 intracellular domain (NICD)-transfected CLL-like cells showed the direct binding of NOTCH1 to the MYC promoter, and transfection with MYC-specific siRNA reduced NPM1 expression. In turn, NPM1 determined a proliferation advantage of CLL-like cells, as demonstrated by NPM1-specific siRNA transfection. In conclusion, NOTCH1 mutations in CLL are associated with the overexpression of MYC and MYC-related genes involved in protein biosynthesis including NPM1, which are allegedly responsible for cell growth and/or proliferation advantages of NOTCH1-mut CLL.
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Affiliation(s)
- F Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - T Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - E Vendramini
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - R Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - P Bulian
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - F M Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - A Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - E Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - M Degan
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - G D'Arena
- Department of Onco-Hematology, IRCCS 'Centro di Riferimento Oncologico della Basilicata', Rionero in Vulture, Italy
| | - F Di Raimondo
- Division of Hematology, Ferrarotto Hospital, Catania, Italy
| | - F Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari 'Carlo Melzi' DISM, Azienda Ospedaliera Universitaria S Maria Misericordia, Udine, Italy
| | - G Pozzato
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Trieste, Italy
| | - D Rossi
- Hematology, Institute of Oncology Research and Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - G Gaidano
- Department of Translational Medicine, Division of Hematology, University of Eastern Piedmont, Novara, Italy
| | - G Del Poeta
- Division of Hematology, S Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - V Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
| | - M Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, IRCCS, Aviano, Italy
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17
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Del Poeta G, Postorino M, Pupo L, Del Principe MI, Dal Bo M, Bittolo T, Buccisano F, Mariotti B, Iannella E, Maurillo L, Venditti A, Gattei V, de Fabritiis P, Cantonetti M, Amadori S. Venetoclax: Bcl-2 inhibition for the treatment of chronic lymphocytic leukemia. Drugs Today (Barc) 2016; 52:249-60. [PMID: 27252989 DOI: 10.1358/dot.2016.52.4.2470954] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Venetoclax (ABT-199) is a small-molecule selective oral inhibitor of the antiapoptotic protein Bcl-2 that promotes programmed cell death of chronic lymphocytic leukemia (CLL) cells regulating the release of proapoptotic factors, such as Smac/Diablo, apoptosis-inducing factor (AIF) and cytochrome c. In April 2016, the U.S. Food and Drug Administration (FDA) granted accelerated approval to venetoclax for patients diagnosed with CLL with 17p deletion, as detected by an FDA-approved test, who have received at least one prior therapy. This review will focus on the mechanism of action, preclinical studies and clinical development of venetoclax both as a monotherapy and in combination with other drugs for CLL in the current milieu of therapy dominated by novel tyrosine kinase inhibitors such as ibrutinib and idelalisib.
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Affiliation(s)
- G Del Poeta
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy.
| | - M Postorino
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - L Pupo
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - M I Del Principe
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - M Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - T Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - F Buccisano
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - B Mariotti
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - E Iannella
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - L Maurillo
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - A Venditti
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - V Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - P de Fabritiis
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - M Cantonetti
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
| | - S Amadori
- Hematology, Dipartimento di Biomedicina e Prevenzione, Universit à degli Studi di Roma Tor Vergata, Rome, Italy
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18
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Bittolo T, Raminelli CA, Deiana C, Baj G, Vaghi V, Ferrazzo S, Bernareggi A, Tongiorgi E. Pharmacological treatment with mirtazapine rescues cortical atrophy and respiratory deficits in MeCP2 null mice. Sci Rep 2016; 6:19796. [PMID: 26806603 PMCID: PMC4726391 DOI: 10.1038/srep19796] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [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] [Received: 10/06/2015] [Accepted: 12/14/2015] [Indexed: 01/22/2023] Open
Abstract
Loss of MeCP2 (Methyl CpG binding protein 2) in Rett syndrome (RTT) causes brain weight decrease, shrinkage of the cortex with reduced dendritic arborization, behavioral abnormalities, seizures and cardio-respiratory complications. The observed monoamine neurotransmitters reduction in RTT suggested antidepressants as a possible therapy. We treated MeCP2-null mice from postnatal-day 28 for two weeks with desipramine, already tested in RTT, or mirtazapine, an antidepressant with limited side-effects, known to promote GABA release. Mirtazapine was more effective than desipramine in restoring somatosensory cortex thickness by fully rescuing pyramidal neurons dendritic arborization and spine density. Functionally, mirtazapine treatment normalized heart rate, breath rate, anxiety levels, and eliminated the hopping behavior observed in MeCP2-null mice, leading to improved phenotypic score. These morphological and functional effects of mirtazapine were accompanied by reestablishment of the GABAergic and glutamatergic receptor activity recorded in cortex and brainstem tissues. Thus, mirtazapine can represent a new potential pharmacological treatment for the Rett syndrome.
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Affiliation(s)
- Tamara Bittolo
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Carlo Antonio Raminelli
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Chiara Deiana
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Gabriele Baj
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Valentina Vaghi
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Sara Ferrazzo
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Annalisa Bernareggi
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
| | - Enrico Tongiorgi
- Department of Life Sciences, University of Trieste, Via L. Giorgieri, 5-34127 Trieste, Italy
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19
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Del Principe MI, Dal Bo M, Bittolo T, Buccisano F, Rossi FM, Zucchetto A, Rossi D, Bomben R, Maurillo L, Cefalo M, De Santis G, Venditti A, Gaidano G, Amadori S, de Fabritiis P, Gattei V, Del Poeta G. Clinical significance of bax/bcl-2 ratio in chronic lymphocytic leukemia. Haematologica 2015; 101:77-85. [PMID: 26565002 DOI: 10.3324/haematol.2015.131854] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 11/11/2015] [Indexed: 11/09/2022] Open
Abstract
In chronic lymphocytic leukemia the balance between the pro-apoptotic and anti-apoptotic members of the bcl-2 family is involved in the pathogenesis, chemorefractoriness and clinical outcome. Moreover, the recently proposed anti-bcl-2 molecules, such as ABT-199, have emphasized the potential role of of bcl-2 family proteins in the context of target therapies. We investigated bax/bcl-2 ratio by flow cytometry in 502 patients and identified a cut off of 1.50 to correlate bax/bcl-2 ratio with well-established clinical and biological prognosticators. Bax/bcl-2 was 1.50 or over in 263 patients (52%) with chronic lymphocytic leukemia. Higher bax/bcl-2 was associated with low Rai stage, lymphocyte doubling time over 12 months, beta-2 microglobulin less than 2.2 mg/dL, soluble CD23 less than 70 U/mL and a low risk cytogenetic profile (P<0.0001). On the other hand, lower bax/bcl-2 was correlated with unmutated IGHV (P<0.0001), mutated NOTCH1 (P<0.0001) and mutated TP53 (P=0.00007). Significant shorter progression-free survival and overall survival were observed in patients with lower bax/bcl-2 (P<0.0001). Moreover, within IGHV unmutated (168 patients) and TP53 mutated (37 patients) subgroups, higher bax/bcl-2 identified cases with significant longer PFS (P=0.00002 and P=0.039). In multivariate analysis of progression-free survival and overall survival, bax/bcl-2 was an independent prognostic factor (P=0.0002 and P=0.002). In conclusion, we defined the prognostic power of bax/bcl-2 ratio, as determined by a flow cytometric approach, and highlighted a correlation with chemoresistance and outcome in chronic lymphocytic leukemia. Finally, the recently proposed new therapies employing bcl-2 inhibitors prompted the potential use of bax/bcl-2 ratio to identify patients putatively resistant to these molecules.
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Affiliation(s)
- Maria Ilaria Del Principe
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Michele Dal Bo
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Tamara Bittolo
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Francesco Buccisano
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Francesca Maria Rossi
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Antonella Zucchetto
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Davide Rossi
- Ematologia, Università del Piemonte Orientale, Novara, Italy
| | - Riccardo Bomben
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Luca Maurillo
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Mariagiovanna Cefalo
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Giovanna De Santis
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Adriano Venditti
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | | | - Sergio Amadori
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Paolo de Fabritiis
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
| | - Valter Gattei
- Unità Clinica e Sperimentale Onco-Ematologica, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Giovanni Del Poeta
- Ematologia, Dipartimento di Biomedicina e Prevenzione, S. Eugenio Hospital and Università Tor Vergata, Roma, Italy
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20
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Pozzo F, Bittolo T, Arruga F, Bulian P, Macor P, Tissino E, Gizdic B, Rossi FM, Bomben R, Zucchetto A, Benedetti D, Degan M, D'Arena G, Chiarenza A, Zaja F, Pozzato G, Rossi D, Gaidano G, Del Poeta G, Deaglio S, Gattei V, Dal Bo M. NOTCH1 mutations associate with low CD20 level in chronic lymphocytic leukemia: evidence for a NOTCH1 mutation-driven epigenetic dysregulation. Leukemia 2015; 30:182-9. [PMID: 26165233 DOI: 10.1038/leu.2015.182] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/25/2015] [Accepted: 06/29/2015] [Indexed: 02/07/2023]
Abstract
In chronic lymphocytic leukemia (CLL), NOTCH1 mutations have been associated with clinical resistance to the anti-CD20 rituximab, although the mechanisms behind this peculiar behavior remain to be clarified. In a wide CLL series (n=692), we demonstrated that CLL cells from NOTCH1-mutated cases (87/692) were characterized by lower CD20 expression and lower relative lysis induced by anti-CD20 exposure in vitro. Consistently, CD20 expression by CLL cells was upregulated in vitro by γ-secretase inhibitors or NOTCH1-specific small interfering RNA and the stable transfection of a mutated (c.7541-7542delCT) NOTCH1 intracellular domain (NICD-mut) into CLL-like cells resulted in a strong downregulation of both CD20 protein and transcript. By using these NICD-mut transfectants, we investigated protein interactions of RBPJ, a transcription factor acting either as activator or repressor of NOTCH1 pathway when respectively bound to NICD or histone deacetylases (HDACs). Compared with controls, NICD-mut transfectants had RBPJ preferentially complexed to NICD and showed higher levels of HDACs interacting with the promoter of the CD20 gene. Finally, treatment with the HDAC inhibitor valproic acid upregulated CD20 in both NICD-mut transfectants and primary CLL cells. In conclusion, NOTCH1 mutations are associated with low CD20 levels in CLL and are responsible for a dysregulation of HDAC-mediated epigenetic repression of CD20 expression.
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Affiliation(s)
- F Pozzo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - T Bittolo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - F Arruga
- Immunogenetics Unit, Human Genetics Foundation (HuGeF), Torino, Italy
| | - P Bulian
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - P Macor
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - E Tissino
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - B Gizdic
- Immunogenetics Unit, Human Genetics Foundation (HuGeF), Torino, Italy
| | - F M Rossi
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - R Bomben
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - A Zucchetto
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - D Benedetti
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - M Degan
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - G D'Arena
- Onco-Hematology Department, Centro di Riferimento Oncologico della Basilicata, I.R.C.C.S., Rionero in Vulture, Italy
| | - A Chiarenza
- Division of Hematology, Ferrarotto Hospital, Catania, Italy
| | - F Zaja
- Clinica Ematologica, Centro Trapianti e Terapie Cellulari 'Carlo Melzi' DISM, Azienda Ospedaliera Universitaria S. Maria Misericordia, Udine, Italy
| | - G Pozzato
- Department of Internal Medicine and Hematology, Maggiore General Hospital, University of Trieste, Trieste, Italy
| | - D Rossi
- Division of Hematology, Department of Translational Medicine, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | - G Gaidano
- Division of Hematology, Department of Translational Medicine, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
| | - G Del Poeta
- Division of Hematology, S. Eugenio Hospital and University of Tor Vergata, Rome, Italy
| | - S Deaglio
- Immunogenetics Unit, Human Genetics Foundation (HuGeF), Torino, Italy.,Department of Medical Sciences, University of Torino, Torino, Italy
| | - V Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
| | - M Dal Bo
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano (PN), Italy
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21
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Bortolussi G, Baj G, Vodret S, Viviani G, Bittolo T, Muro AF. Age-dependent pattern of cerebellar susceptibility to bilirubin neurotoxicity in vivo in mice. Dis Model Mech 2014; 7:1057-68. [PMID: 25062689 PMCID: PMC4142726 DOI: 10.1242/dmm.016535] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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] [Indexed: 11/20/2022] Open
Abstract
Neonatal jaundice is caused by high levels of unconjugated bilirubin. It is usually a temporary condition caused by delayed induction of UGT1A1, which conjugates bilirubin in the liver. To reduce bilirubin levels, affected babies are exposed to phototherapy (PT), which converts toxic bilirubin into water-soluble photoisomers that are readily excreted out. However, in some cases uncontrolled hyperbilirubinemia leads to neurotoxicity. To study the mechanisms of bilirubin-induced neurological damage (BIND) in vivo, we generated a mouse model lacking the Ugt1a1 protein and, consequently, mutant mice developed jaundice as early as 36 hours after birth. The mutation was transferred into two genetic backgrounds (C57BL/6 and FVB/NJ). We exposed mutant mice to PT for different periods and analyzed the resulting phenotypes from the molecular, histological and behavioral points of view. Severity of BIND was associated with genetic background, with 50% survival of C57BL/6‑Ugt1−/− mutant mice at postnatal day 5 (P5), and of FVB/NJ-Ugt1−/− mice at P11. Life-long exposure to PT prevented cerebellar architecture alterations and rescued neuronal damage in FVB/NJ-Ugt1−/− but not in C57BL/6-Ugt1−/− mice. Survival of FVB/NJ-Ugt1−/− mice was directly related to the extent of PT treatment. PT treatment of FVB/NJ-Ugt1−/− mice from P0 to P8 did not prevent bilirubin-induced reduction in dendritic arborization and spine density of Purkinje cells. Moreover, PT treatment from P8 to P20 did not rescue BIND accumulated up to P8. However, PT treatment administered in the time-window P0–P15 was sufficient to obtain full rescue of cerebellar damage and motor impairment in FVB/NJ-Ugt1−/− mice. The possibility to modulate the severity of the phenotype by PT makes FVB/NJ-Ugt1−/− mice an excellent and versatile model to study bilirubin neurotoxicity, the role of modifier genes, alternative therapies and cerebellar development during high bilirubin conditions.
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Affiliation(s)
- Giulia Bortolussi
- International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Gabriele Baj
- Basic Research and Integrative Neuroscience (BRAIN) Centre for Neuroscience, Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Simone Vodret
- International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Giulia Viviani
- International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Tamara Bittolo
- Basic Research and Integrative Neuroscience (BRAIN) Centre for Neuroscience, Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Andrés F Muro
- International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
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