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Bosseboeuf A, Seillier C, Mennesson N, Allain-Maillet S, Fourny M, Tallet A, Piver E, Lehours P, Mégraud F, Berthelot L, Harb J, Bigot-Corbel E, Hermouet S. Analysis of the Targets and Glycosylation of Monoclonal IgAs From MGUS and Myeloma Patients. Front Immunol 2020; 11:854. [PMID: 32536913 PMCID: PMC7266999 DOI: 10.3389/fimmu.2020.00854] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
Previous studies showed that monoclonal immunoglobulins G (IgGs) of “monoclonal gammopathy of undetermined significance” (MGUS) and myeloma were hyposialylated, thus presumably pro-inflammatory, and for about half of patients, the target of the monoclonal IgG was either a virus—Epstein–Barr virus (EBV), other herpes viruses, hepatitis C virus (HCV)—or a glucolipid, lysoglucosylceramide (LGL1), suggesting antigen-driven disease in these patients. In the present study, we show that monoclonal IgAs share these characteristics. We collected 35 sera of patients with a monoclonal IgA (6 MGUS, 29 myeloma), and we were able to purify 25 of the 35 monoclonal IgAs (6 MGUS, 19 myeloma). Monoclonal IgAs from MGUS and myeloma patients were significantly less sialylated than IgAs from healthy volunteers. When purified monoclonal IgAs were tested against infectious pathogens and LGL1, five myeloma patients had a monoclonal IgA that specifically recognized viral proteins: the core protein of HCV in one case, EBV nuclear antigen 1 (EBNA-1) in four cases (21.1% of IgA myeloma). Monoclonal IgAs from three myeloma patients reacted against LGL1. In summary, monoclonal IgAs are hyposialylated and as described for IgG myeloma, significant subsets (8/19, or 42%) of patients with IgA myeloma may have viral or self (LGL1) antigen-driven disease.
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Affiliation(s)
- Adrien Bosseboeuf
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France
| | - Célia Seillier
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France
| | - Nicolas Mennesson
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France
| | | | - Maeva Fourny
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France
| | - Anne Tallet
- Laboratoire de Biochimie, CHU de Tours, Tours, France
| | - Eric Piver
- Laboratoire de Biochimie, CHU de Tours, Tours, France.,Inserm UMR966, Tours, France
| | - Philippe Lehours
- Inserm U1053, Université de Bordeaux, Bordeaux, France.,Laboratoire de Bactériologie, Centre National de Reference des Campylobacters et des Hélicobacters, CHU de Bordeaux, Bordeaux, France
| | - Francis Mégraud
- Inserm U1053, Université de Bordeaux, Bordeaux, France.,Laboratoire de Bactériologie, Centre National de Reference des Campylobacters et des Hélicobacters, CHU de Bordeaux, Bordeaux, France
| | - Laureline Berthelot
- Centre de Recherche en Transplantation et Immunologie UMR1064, Inserm, Université de Nantes, Nantes, France
| | - Jean Harb
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France.,Centre de Recherche en Transplantation et Immunologie UMR1064, Inserm, Université de Nantes, Nantes, France.,Laboratoire de Biochimie, CHU de Nantes, Nantes, France
| | - Edith Bigot-Corbel
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France.,Laboratoire de Biochimie, CHU de Nantes, Nantes, France
| | - Sylvie Hermouet
- CRCINA, Inserm, Université de Nantes, Université d'Angers, Nantes, France.,Laboratoire d'Hématologie, CHU de Nantes, Nantes, France
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102
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Iskierka-Jażdżewska E, Robak T. Investigational treatments for chronic lymphocytic leukemia: a focus on phase 1 and 2 clinical trials. Expert Opin Investig Drugs 2020; 29:709-722. [PMID: 32407139 DOI: 10.1080/13543784.2020.1770225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Introduction: During recent years, the introduction of novel drugs, particularly small molecule inhibitors, has led to remarkable progress in both previously untreated and relapsed/refractory (RR) patients in chronic lymphocytic leukemia (CLL). However, further research is necessary to find an optimal cure that responds to the individual needs of the patient. Areas covered: This review discusses new agents in phase 1 and 2 clinical trials currently underway in CLL patients. A literature review of the MEDLINE database for articles in English concerning novel drugs, clinical trials, phase 1, phase 2 and CLL was conducted via PubMed. Publications from 2000 through January 2020 were scrutinized. Conference proceedings from the previous five years of the American Society of Hematology, European Hematology Association and American Society of Clinical Oncology were searched manually. Additional relevant publications were obtained by reviewing the references from the chosen articles. The search also included clinical trials registered in clinicaltrials.gov. Expert opinion: The use of BTK and PI3Kδ inhibitors and BCL-2 antagonist have changed the treatment strategy of CLL. Several clinical trials with novel, unapproved agents are currently ongoing. Their findings should define the role of these novel drugs in the treatment of patients with previously untreated and RR CLL.
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Affiliation(s)
| | - Tadeusz Robak
- Department of Hematology, Copernicus Memorial Hospital, Lodz, Medical University of Lodz , Lodz, Poland
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103
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George B, Mullick Chowdhury S, Hart A, Sircar A, Singh SK, Nath UK, Mamgain M, Singhal NK, Sehgal L, Jain N. Ibrutinib Resistance Mechanisms and Treatment Strategies for B-Cell lymphomas. Cancers (Basel) 2020; 12:E1328. [PMID: 32455989 PMCID: PMC7281539 DOI: 10.3390/cancers12051328] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 02/03/2023] Open
Abstract
Chronic activation of B-cell receptor (BCR) signaling via Bruton tyrosine kinase (BTK) is largely considered to be one of the primary mechanisms driving disease progression in B-Cell lymphomas. Although the BTK-targeting agent ibrutinib has shown promising clinical responses, the presence of primary or acquired resistance is common and often leads to dismal clinical outcomes. Resistance to ibrutinib therapy can be mediated through genetic mutations, up-regulation of alternative survival pathways, or other unknown factors that are not targeted by ibrutinib therapy. Understanding the key determinants, including tumor heterogeneity and rewiring of the molecular networks during disease progression and therapy, will assist exploration of alternative therapeutic strategies. Towards the goal of overcoming ibrutinib resistance, multiple alternative therapeutic agents, including second- and third-generation BTK inhibitors and immunomodulatory drugs, have been discovered and tested in both pre-clinical and clinical settings. Although these agents have shown high response rates alone or in combination with ibrutinib in ibrutinib-treated relapsed/refractory(R/R) lymphoma patients, overall clinical outcomes have not been satisfactory due to drug-associated toxicities and incomplete remission. In this review, we discuss the mechanisms of ibrutinib resistance development in B-cell lymphoma including complexities associated with genomic alterations, non-genetic acquired resistance, cancer stem cells, and the tumor microenvironment. Furthermore, we focus our discussion on more comprehensive views of recent developments in therapeutic strategies to overcome ibrutinib resistance, including novel BTK inhibitors, clinical therapeutic agents, proteolysis-targeting chimeras and immunotherapy regimens.
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Affiliation(s)
- Bhawana George
- Department of Hematopathology, MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Sayan Mullick Chowdhury
- Department of Internal Medicine, the Ohio State University, Columbus, OH 43210, USA; (S.M.C.); (A.H.); (A.S.); (S.K.S.)
| | - Amber Hart
- Department of Internal Medicine, the Ohio State University, Columbus, OH 43210, USA; (S.M.C.); (A.H.); (A.S.); (S.K.S.)
| | - Anuvrat Sircar
- Department of Internal Medicine, the Ohio State University, Columbus, OH 43210, USA; (S.M.C.); (A.H.); (A.S.); (S.K.S.)
| | - Satish Kumar Singh
- Department of Internal Medicine, the Ohio State University, Columbus, OH 43210, USA; (S.M.C.); (A.H.); (A.S.); (S.K.S.)
| | - Uttam Kumar Nath
- Department of Medical Oncology & Hematology, All India Institute of Medical Sciences, Rishikesh 249203, India;
| | - Mukesh Mamgain
- Department of Biochemistry, All India Institute of Medical Sciences, Rishikesh 249203, India; (M.M.); (N.K.S.)
| | - Naveen Kumar Singhal
- Department of Biochemistry, All India Institute of Medical Sciences, Rishikesh 249203, India; (M.M.); (N.K.S.)
| | - Lalit Sehgal
- Department of Internal Medicine, the Ohio State University, Columbus, OH 43210, USA; (S.M.C.); (A.H.); (A.S.); (S.K.S.)
| | - Neeraj Jain
- Department of Medical Oncology & Hematology, All India Institute of Medical Sciences, Rishikesh 249203, India;
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104
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Ring A, Zenz T. Genetics of "high-risk" chronic lymphocytic leukemia in the times of chemoimmunotherapy. Haematologica 2020; 105:1180-1182. [PMID: 32358080 DOI: 10.3324/haematol.2020.246504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Alexander Ring
- Department of Medical Oncology and Haematology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Thorsten Zenz
- Department of Medical Oncology and Haematology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
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105
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Sadeghi L, Arvidsson G, Merrien M, Wasik AM, Görgens A, Smith CE, Sander B, P. Wright A. Differential B-Cell Receptor Signaling Requirement for Adhesion of Mantle Cell Lymphoma Cells to Stromal Cells. Cancers (Basel) 2020; 12:cancers12051143. [PMID: 32370190 PMCID: PMC7281289 DOI: 10.3390/cancers12051143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 01/01/2023] Open
Abstract
Interactions between lymphoma cells and stromal cells play a key role in promoting tumor survival and development of drug resistance. We identified differences in key signaling pathways between the JeKo-1 and REC-1 mantle cell lymphoma (MCL) cell lines, displaying different patterns of stromal cell adhesion and chemotaxis towards stroma-conditioned medium. The identified adhesion-regulated genes reciprocated important aspects of microenvironment-mediated gene modulation in MCL patients. Five-hundred and ninety genes were differently regulated between the cell lines upon adhesion to stromal cells, while 32 genes were similarly regulated in both cell lines. Regulation of B-cell Receptor (BCR) signature genes in adherent cells was specific for JeKo-1. Inhibition of BCR using siRNA or clinically approved inhibitors, Ibrutinib and Acalabrutinib, decreased adhesion of JeKo-1, but not REC-1 cells. Cell surface levels of chemokine receptor CXCR4 were higher in JeKo-1, facilitating migration and adhesion of JeKo-1 but not REC-1 cells. Surface levels of ICAM1 adhesion protein differ for REC-1 and JeKo-1. While ICAM1 played a positive role in adherence of both cell lines to stromal cells, S1PR1 had an inhibitory effect. Our results provide a model framework for further investigation of mechanistic differences in patient-response to new pathway-specific drugs.
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Affiliation(s)
- Laia Sadeghi
- Department of Laboratory Medicine, Division of Biomedical and Cellular Medicine, Karolinska Institutet, 141 57 Stockholm, Sweden; (L.S.); (G.A.); (A.G.); (C.I.E.S.)
| | - Gustav Arvidsson
- Department of Laboratory Medicine, Division of Biomedical and Cellular Medicine, Karolinska Institutet, 141 57 Stockholm, Sweden; (L.S.); (G.A.); (A.G.); (C.I.E.S.)
| | - Magali Merrien
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, 141 52 Stockholm, Sweden; (M.M.); (A.M.W.); (B.S.)
| | - Agata M. Wasik
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, 141 52 Stockholm, Sweden; (M.M.); (A.M.W.); (B.S.)
| | - André Görgens
- Department of Laboratory Medicine, Division of Biomedical and Cellular Medicine, Karolinska Institutet, 141 57 Stockholm, Sweden; (L.S.); (G.A.); (A.G.); (C.I.E.S.)
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg, 45 147 Essen, Germany
| | - C.I. Edvard Smith
- Department of Laboratory Medicine, Division of Biomedical and Cellular Medicine, Karolinska Institutet, 141 57 Stockholm, Sweden; (L.S.); (G.A.); (A.G.); (C.I.E.S.)
| | - Birgitta Sander
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, 141 52 Stockholm, Sweden; (M.M.); (A.M.W.); (B.S.)
| | - Anthony P. Wright
- Department of Laboratory Medicine, Division of Biomedical and Cellular Medicine, Karolinska Institutet, 141 57 Stockholm, Sweden; (L.S.); (G.A.); (A.G.); (C.I.E.S.)
- Correspondence:
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106
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Bandopadhyay M, Bharadwaj M. Exosomal miRNAs in hepatitis B virus related liver disease: a new hope for biomarker. Gut Pathog 2020; 12:23. [PMID: 32346400 PMCID: PMC7183117 DOI: 10.1186/s13099-020-00353-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 03/31/2020] [Indexed: 02/06/2023] Open
Abstract
The World Health Organisation, in its 2019 progress report on HIV, viral hepatitis and STDs indicates that 257 million people are afflicted with chronic HBV infections, of which, 1 million patients lose their lives every year due to HBV related chronic liver diseases including serious complications such as liver cirrhosis and hepatocellular carcinoma. The course of HBV infection and associated liver injury depend on several host factors, genetic variability of the virus, and the host viral interplay. The challenge of medical science is the early diagnosis/identification of the potential for development of fatal complications like liver cirrhosis and HCC so that timely medical intervention can improve the chances of survival. Currently, neither the vaccination regime nor the diagnostic methods are completely effective as reflected in the high number of annual deaths. It is evident from numerous publications that microRNAs (miRNAs) are the critical regulators of gene expression and various cellular processes like proliferation, development, differentiation, apoptosis and tumorigenesis. Expressions of these diminutive RNAs are significantly affected in cancerous tissues as a result of numerous genomic and epigenetic modifications. Exosomes are membrane-derived vesicles (30–100 nm) secreted by normal as well as malignant cells, and are present in all body fluids. They are recognized as critical molecules in intercellular communication between cells through horizontal transfer of information via their cargo, which includes selective proteins, mRNAs and miRNAs. Exosomal miRNAs are transferred to recipient cells where they can regulate target gene expression. This provides an insight into the elementary biology of cancer progression and therefore the development of therapeutic approaches. This concise review outlines various on-going research on miRNA mediated regulation of HBV pathogenesis with special emphasis on association of exosomal miRNA in advanced stage liver disease like hepatocellular carcinoma. This review also discusses the possible use of exosomal miRNAs as biomarkers in the early detection of HCC and liver cirrhosis.
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Affiliation(s)
- Manikankana Bandopadhyay
- Molecular Genetics and Biochemistry, National Institute of Cancer Prevention and Research (NICPR), Indian Council of Medical Research (ICMR), Noida, Uttar Pradesh 201301 India
| | - Mausumi Bharadwaj
- Molecular Genetics and Biochemistry, National Institute of Cancer Prevention and Research (NICPR), Indian Council of Medical Research (ICMR), Noida, Uttar Pradesh 201301 India
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107
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P66Shc: A Pleiotropic Regulator of B Cell Trafficking and a Gatekeeper in Chronic Lymphocytic Leukemia. Cancers (Basel) 2020; 12:cancers12041006. [PMID: 32325830 PMCID: PMC7226591 DOI: 10.3390/cancers12041006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 12/20/2022] Open
Abstract
Neoplastic B cells from chronic lymphocytic leukemia patients (CLL) have a profound deficiency in the expression of p66Shc, an adaptor protein with pro-apoptotic and pro-oxidant activities. This defect results in leukemic B cell resistance to apoptosis and additionally impinges on the balance between chemokine receptors that control B cell homing to secondary lymphoid organs and the sphingosine phosphate receptor S1PR1 that controls their egress therefrom, thereby favoring leukemic B cell accumulation in the pro-survival lymphoid niche. Ablation of the gene encoding p66Shc in the Eµ-TCL1 mouse model of human CLL enhances leukemogenesis and promotes leukemic cell invasiveness in both nodal and extranodal organs, providing in vivo evidence of the pathogenic role of the p66Shc defect in CLL pathogenesis. Here we present an overview of the functions of p66Shc in B lymphocytes, with a specific focus on the multiple mechanisms exploited by p66Shc to control B cell trafficking and the abnormalities in this process caused by p66Shc deficiency in CLL.
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108
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Arroyo DS, Rodriguez CM, Bussi C, Manzone-Rodriguez C, Sastre D, Heller V, Stanganelli C, Slavutsky I, Iribarren P. Increased Expression of Autophagy Protein LC3 in Two Patients With Progressing Chronic Lymphocytic Leukemia. Front Endocrinol (Lausanne) 2020; 11:321. [PMID: 32774323 PMCID: PMC7388238 DOI: 10.3389/fendo.2020.00321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 04/27/2020] [Indexed: 01/02/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is the most common type of adult leukemia in the western hemisphere. It is characterized by a clonal proliferation of a population of CD5+ B lymphocytes that accumulate in the secondary lymphoid tissues, bone marrow, and blood. Some CLL patients remain free of symptoms for decades, whereas others rapidly become symptomatic or develop high-risk disease. Studying autophagy, which may modulate key protein expression and cell survival, may be important to the search for novel prognostic factors and molecules. Here, we applied flow cytometry technology to simultaneously detect autophagy protein LC3B with classical phenotypical markers used for the identification of tumoral CLL B cell clones. We found that two patients with progressing CLL showed increased expression of the autophagy protein LC3B, in addition to positive expression of CD38 and ZAP70 and unmutated status of IGHV. Our data suggest that activation of autophagy flux may correlate with CLL progression even before Ibrutinib treatment.
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Affiliation(s)
- Daniela S. Arroyo
- Facultad de Ciencias Médicas, Hospital Nacional de Clínicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Cecilia M. Rodriguez
- Facultad de Ciencias Médicas, Hospital Nacional de Clínicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | - Clarisa Manzone-Rodriguez
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Córdoba, Argentina
| | - Darío Sastre
- Facultad de Ciencias Médicas, Hospital Nacional de Clínicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Viviana Heller
- Facultad de Ciencias Médicas, Hospital Nacional de Clínicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Carmen Stanganelli
- Patología Molecular, Instituto de Investigaciones Hematológicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Irma Slavutsky
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Pablo Iribarren
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Córdoba, Argentina
- *Correspondence: Pablo Iribarren
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109
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Tomić K, Karan-Đurašević T, Vuković V, Mihaljević B, Antić D. Clinical significance of TP53 aberrations and IGHV mutational status in chronic lymphocytic leukemia. MEDICINSKI PODMLADAK 2020. [DOI: 10.5937/mp71-28969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) is a very heterogeneous disease with a variable clinical course. On the one side of the spectrum, there are patients with aggressive and resistant disease, of which they die only a few months after diagnosis while, on the other side, there are patients with an indolent, slowly progressive disease that does not require treatment for decades. The reasons for this are only partially known, but they have been the subject of numerous scientific studies during the last several decades. Consequently, the concept of prognostic and predictive factors in CLL have emerged, which aims to predict the clinical course and its therapeutic outcome. With the improvement of understanding the pathophysiology of this disease, the lists of prognostic and predictive factors are getting longer every year, but they also overlap. In this review, we singled out the aberrations of the TP53 gene and the IGHV (immunoglobulin heavy variable) gene mutational status as the two most important and most studied factors that have both prognostic and predictive significance.
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110
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Piazza F, Manni S, Arjomand A, Visentin A, Trentin L, Semenzato G. New responsibilities for aged kinases in B-lymphomas. Hematol Oncol 2019; 38:3-11. [PMID: 31782972 DOI: 10.1002/hon.2694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/05/2019] [Indexed: 12/21/2022]
Abstract
The knowledge accumulated over the last decade on B-cell-derived non-Hodgkin lymphoma (B-NHL) pathogenesis has led to the identification of several molecular abnormalities, opening new perspectives in the design of novel therapies. Indeed, drugs targeting specific biochemical pathways critical for B-NHL cell survival, proliferation, and fitness within the malignant microenvironment are now available to the clinician: the B-cell receptor signaling inhibitors of BTK, PI3Kδ, ζ, γ, and SYK or the pro-apoptotic BH3-mimetics are clear examples of it. Moreover, it is emerging that malignant B-cell growth is sustained not only by mutations in oncogenes/tumor suppressors but also by the "addiction" to nononcogene (ie, nonstructurally altered) molecules. In this regard, a consistent body of data has established that the Ser/Thr kinases CK1, CK2, and GSK3 are involved in malignant lymphocyte biology and act as pro-survival and signaling-boosting molecules, both in precursor and mature B-cell tumors. Currently, an experimental and clinical groundwork is available, upon which to design CK1-, CK2-, and GSK3-directed antilymphoma/leukemia therapies. In this review, we have examined the main features of CK1, CK2, and GSK3 kinases, summarized the data in B-NHL supporting them as suitable therapeutic targets, and proposed a perspective on potential future research development.
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Affiliation(s)
- Francesco Piazza
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
| | - Sabrina Manni
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
| | - Arash Arjomand
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
| | - Andrea Visentin
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
| | - Livio Trentin
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
| | - Gianpietro Semenzato
- Department of Medicine, Hematology and Clinical Immunology Branch, University of Padova, Padova, Italy.,Unit of Hematological Malignancies - Laboratory of Myeloma and Lymphoma Pathobiology, Foundation for Advanced Biomedical Research - Veneto Institute of Molecular Medicine (FABR-VIMM), Padova, Italy
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111
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Lorenzo-Herrero S, Sordo-Bahamonde C, Bretones G, Payer ÁR, González-Rodríguez AP, González-García E, Pérez-Escuredo J, Villa-Álvarez M, Núñez LE, Morís F, Gonzalez S, López-Soto A. The Mithralog EC-7072 Induces Chronic Lymphocytic Leukemia Cell Death by Targeting Tonic B-Cell Receptor Signaling. Front Immunol 2019; 10:2455. [PMID: 31681329 PMCID: PMC6813538 DOI: 10.3389/fimmu.2019.02455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 10/01/2019] [Indexed: 02/01/2023] Open
Abstract
B-cell receptor (BCR)-dependent signaling is central for leukemia B-cell homeostasis, as underscored by the promising clinical results obtained in patients with chronic lymphocytic leukemia (CLL) treated with novel agents targeting components of this pathway. Herein, we demonstrate that the mithralog EC-7072 displays high ex vivo cytotoxic activity against leukemia cells from CLL patients independently from high-risk prognostic markers and IGHV mutational status. EC-7072 was significantly less toxic against T cells and NK cells and did not alter the production of the immune effector molecules IFN-γ and perforin. EC-7072 directly triggered caspase-3-dependent CLL cell apoptosis, which was not abrogated by microenvironment-derived factors that sustain leukemia cell survival. RNA-sequencing analyses revealed a dramatic EC-7072-driven reprograming of the transcriptome of CLL cells, including a wide downregulation of multiple components and targets of the BCR signaling pathway. Accordingly, we found decreased levels of phosphorylated signaling nodes downstream of the BCR. Crosslinking-mediated BCR activation antagonized CLL cell death triggered by EC-7072, increased the phosphorylation levels of the abovementioned signaling nodes and upregulated BCL2 expression, suggesting that the mithralog disrupts CLL cell viability by targeting the BCR signaling axis at multiple levels. EC-7072 exerted similar or higher antileukemic activity than that of several available CLL therapies and displayed additive or synergistic interaction with these drugs in killing CLL cells. Overall, our findings provide rationale for future investigation to test whether EC-7072 may be a potential therapeutic option for patients with CLL and other B-cell malignancies.
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MESH Headings
- Antibiotics, Antineoplastic/pharmacology
- Apoptosis/drug effects
- Caspase 3/metabolism
- Cell Survival/drug effects
- Cell Survival/genetics
- Gene Expression Profiling/methods
- Gene Expression Regulation, Leukemic/drug effects
- Humans
- Interferon-gamma/metabolism
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Phosphorylation/drug effects
- Plicamycin/analogs & derivatives
- Plicamycin/pharmacology
- Receptors, Antigen, B-Cell/antagonists & inhibitors
- Receptors, Antigen, B-Cell/genetics
- Receptors, Antigen, B-Cell/metabolism
- Signal Transduction/drug effects
- Signal Transduction/genetics
- T-Lymphocytes/drug effects
- T-Lymphocytes/metabolism
- Tumor Cells, Cultured
- Tumor Microenvironment/drug effects
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Affiliation(s)
- Seila Lorenzo-Herrero
- Departamento de Biología Funcional, Inmunología, Universidad de Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Christian Sordo-Bahamonde
- Departamento de Biología Funcional, Inmunología, Universidad de Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
- EntreChem S.L., Oviedo, Spain
| | - Gabriel Bretones
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain
| | - Ángel R. Payer
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
- Department of Hematology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Ana P. González-Rodríguez
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
- Department of Hematology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | - Mónica Villa-Álvarez
- Departamento de Biología Funcional, Inmunología, Universidad de Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | | | | | - Segundo Gonzalez
- Departamento de Biología Funcional, Inmunología, Universidad de Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Alejandro López-Soto
- Departamento de Biología Funcional, Inmunología, Universidad de Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
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112
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Del Papa B, Baldoni S, Dorillo E, De Falco F, Rompietti C, Cecchini D, Cantelmi MG, Sorcini D, Nogarotto M, Adamo FM, Mezzasoma F, Silva Barcelos EC, Albi E, Iacucci Ostini R, Di Tommaso A, Marra A, Montanaro G, Martelli MP, Falzetti F, Di Ianni M, Rosati E, Sportoletti P. Decreased NOTCH1 Activation Correlates with Response to Ibrutinib in Chronic Lymphocytic Leukemia. Clin Cancer Res 2019; 25:7540-7553. [PMID: 31578228 DOI: 10.1158/1078-0432.ccr-19-1009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 08/02/2019] [Accepted: 09/24/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE Ibrutinib, a Bruton tyrosine kinase inhibitor (BTKi), has improved the outcomes of chronic lymphocytic leukemia (CLL), but primary resistance or relapse are issues of increasing significance. While the predominant mechanism of action of BTKi is the B-cell receptor (BCR) blockade, many off-target effects are unknown. We investigated potential interactions between BCR pathway and NOTCH1 activity in ibrutinib-treated CLL to identify new mechanisms of therapy resistance and markers to monitor disease response. EXPERIMENTAL DESIGN NOTCH activations was evaluated either in vitro and ex vivo in CLL samples after ibrutinib treatment by Western blotting. Confocal proximity ligation assay (PLA) experiments and analyses of down-targets of NOTCH1 by qRT-PCR were used to investigate the cross-talk between BTK and NOTCH1. RESULTS In vitro ibrutinib treatment of CLL significantly reduced activated NOTCH1/2 and induced dephosphorylation of eIF4E, a NOTCH target in CLL. BCR stimulation increased the expression of activated NOTCH1 that accumulated in the nucleus leading to HES1, DTX1, and c-MYC transcription. Results of in situ PLA experiments revealed the presence of NOTCH1-ICD/BTK complexes, whose number was reduced after ibrutinib treatment. In ibrutinib-treated CLL patients, leukemic cells showed NOTCH1 activity downregulation that deepened over time. The NOTCH1 signaling was restored at relapse and remained activated in ibrutinib-resistant CLL cells. CONCLUSIONS We demonstrated a strong clinical activity of ibrutinib in a real-life context. The ibrutinib clinical efficacy was associated with NOTCH1 activity downregulation that deepened over time. Our data point to NOTCH1 as a new molecular partner in BCR signaling with potential to further improve CLL-targeted treatments.
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Affiliation(s)
- Beatrice Del Papa
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Stefano Baldoni
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy.,Department of Life, Health and Environmental Sciences, Hematology Section, University of L'Aquila, L'Aquila, Italy
| | - Erica Dorillo
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Filomena De Falco
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Chiara Rompietti
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Debora Cecchini
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Maria Grazia Cantelmi
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Daniele Sorcini
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Manuel Nogarotto
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Francesco Maria Adamo
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Federica Mezzasoma
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Estevão Carlos Silva Barcelos
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy.,Department of Biological Sciences, Postgraduate Program in Biotechnology (UFES), Federal University of Espirito Santo, Vitória-ES, Brazil
| | - Elisa Albi
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Roberta Iacucci Ostini
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Ambra Di Tommaso
- Department of Life, Health and Environmental Sciences, Hematology Section, University of L'Aquila, L'Aquila, Italy
| | - Andrea Marra
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Guido Montanaro
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy.,Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Maria Paola Martelli
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Franca Falzetti
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy
| | - Mauro Di Ianni
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy.,Department of Medicine and Aging Sciences, University of Chieti Pescara, Chieti, Italy
| | - Emanuela Rosati
- Department of Experimental Medicine, Biosciences and Medical Embriology Section, University of Perugia, Perugia, Italy
| | - Paolo Sportoletti
- Institute of Hematology-Centro di Ricerca Emato-Oncologica (CREO), University of Perugia, Perugia, Italy.
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113
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Silencing of HDAC6 as a therapeutic target in chronic lymphocytic leukemia. Blood Adv 2019; 2:3012-3024. [PMID: 30425065 DOI: 10.1182/bloodadvances.2018020065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 10/06/2018] [Indexed: 12/22/2022] Open
Abstract
Although the treatment paradigm for chronic lymphocytic leukemia (CLL) is rapidly changing, the disease remains incurable, except with allogeneic bone marrow transplantation, and resistance, relapsed disease, and partial responses persist as significant challenges. Recent studies have uncovered roles for epigenetic modification in the regulation of mechanisms contributing to malignant progression of CLL B cells. However, the extent to which epigenetic modifiers can be targeted for therapeutic benefit in CLL patients remains poorly explored. We report for the first time that expression of epigenetic modifier histone deacetylase 6 (HDAC6) is upregulated in CLL patient samples, cell lines, and euTCL1 transgenic mouse models compared with HDAC6 in normal controls. Genetic silencing of HDAC6 conferred survival benefit in euTCL1 mice. Administration of isoform-specific HDAC6 inhibitor ACY738 in the euTCL1 aging and adoptive transfer models deterred proliferation of CLL B cells, delayed disease onset via disruption of B-cell receptor signaling, and sensitized CLL B cells to apoptosis. Furthermore, coadministration of ACY738 and ibrutinib displayed synergistic cell kill against CLL cell lines and improved overall survival compared with either single agent in vivo. These results demonstrate for the first time the therapeutic efficacy of selective HDAC6 inhibition in preclinical CLL models and suggest a rationale for the clinical development of HDAC6 inhibitors for CLL treatment, either alone or in combination with Bruton tyrosine kinase inhibition.
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114
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Abstract
Bruton's tyrosine kinase (BTK) is crucial in B-cell development and survival. The role of BTK as a downstream kinase in the B-cell receptor (BCR) signaling pathway is well described. As a key player in the pathogenesis of B-cell malignancies, targeting of dysregulated BCR signaling has been explored by development of inhibitors of downstream mediators. Discovery of the biological function of BTK and the development of covalent inhibitors for clinical use, ibrutinib as the lead agent and acalabrutinib as the second clinically approved BTK inhibitor, have revolutionized the treatment options for B-cell malignancies. Currently, ibrutinib is approved for mantle cell lymphoma, chronic lymphocytic leukemia, lymphoplasmacytic lymphoma/Waldenström macroglobulinemia, small lymphocytic lymphoma, marginal zone lymphoma and chronic graft versus host disease, while acalabrutinib is approved for mantle cell lymphoma. Potential expansion of indications in other diseases is under investigation in several clinical trials, while combination of BTK inhibitors with either chemoimmunotherapy or other targeted agents is being systematically explored in B-cell malignancies.
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115
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Arruga F, Deaglio S. Mechanisms of Resistance to Targeted Therapies in Chronic Lymphocytic Leukemia. Handb Exp Pharmacol 2019; 249:203-229. [PMID: 28275912 DOI: 10.1007/164_2017_12] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Even if treatment options for Chronic Lymphocytic Leukemia (CLL) patients have changed dramatically in the past few years, with the approval of targeted therapeutic agents, the disease remains incurable. Beside intrinsic genetic features characterizing the leukemic cell, signals coming from the microenvironment have a key role in promoting cell survival and in protecting CLL cells from the action of drugs. Consequently, the identification of previously unrecognized genetic lesions is important in risk-stratification of CLL patients and is progressively becoming a critical tool for choosing the best therapeutic strategy. Significant efforts have also been dedicated to define microenvironment-dependent mechanisms that sustain leukemic cells favoring survival, proliferation, and accumulation of additional genetic lesions. Furthermore, understanding the molecular and biological mechanisms, potentially driving disease progression and chemoresistance, is the first step to design therapies that could be effective in high-risk patients. Significant progress has been made in the identification of the different mechanisms through which patients relapse after "new" and "old" therapies. These studies have led to the development of targeted strategies to overcome, or even prevent, resistance through the design of novel agents or their combination.In this chapter we will give an overview of the main therapeutic options for CLL patients and review the mechanisms of resistance responsible for treatment failure. Potential strategies to overcome or prevent resistance will be also discussed.
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Affiliation(s)
| | - Silvia Deaglio
- Human Genetics Foundation, via Nizza 52, Turin, 10126, Italy.,Department of Medical Sciences, University of Turin, Turin, Italy
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116
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Hanna BS, Öztürk S, Seiffert M. Beyond bystanders: Myeloid cells in chronic lymphocytic leukemia. Mol Immunol 2019; 110:77-87. [DOI: 10.1016/j.molimm.2017.11.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/07/2017] [Accepted: 11/14/2017] [Indexed: 12/31/2022]
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117
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Sharifi H, Shafiee A, Molavi G, Razi E, Mousavi N, Sarvizadeh M, Taghizadeh M. Leukemia-derived exosomes: Bringing oncogenic signals to blood cells. J Cell Biochem 2019; 120:16307-16315. [PMID: 31127656 DOI: 10.1002/jcb.29018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/11/2019] [Accepted: 04/18/2019] [Indexed: 12/26/2022]
Abstract
Leukemia is a cancer, which is derived from leukocytes and precursors of leukocytes in the bone marrow. A large number of pivotal biological processes are linked to leukemia pathogenesis. More insights into these mechanisms can provide a better developing pharmacological platform for patients with leukemia. Among the different players in leukemia pathogenesis, exosomes have appeared as a new biological vehicle, which can transfer oncogenic signals to blood cells. Exosomes are nano-carriers, which enable transferring numerous cargos such as DNA fragments, RNAs, messenger RNAs, microRNAs, long noncoding RNA, and proteins. Targeting the contents of exosomes leads to the alteration of host cell behavior. Increasing evidence has indicated that leukemia-derived exosomes could be utilized as prognostic, diagnostic, and therapeutic biomarkers for individuals suffering from leukemia. In this regard, the importance of exosomes in terms of initiation and progression of leukemia was underlined in this study.
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Affiliation(s)
- Hossein Sharifi
- The Advocate Center for Clinical Research, Ayatollah Yasrebi Hospital, Kashan, Iran
| | - Alimohammad Shafiee
- Division of General Internal Medicine, Toronto General Hospital, Toronto, Canada
| | - Ghader Molavi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ebrahim Razi
- The Advocate Center for Clinical Research, Ayatollah Yasrebi Hospital, Kashan, Iran
| | - Nousin Mousavi
- Department of Surgery, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Mostafa Sarvizadeh
- The Advocate Center for Clinical Research, Ayatollah Yasrebi Hospital, Kashan, Iran
| | - Mohsen Taghizadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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118
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Mallm JP, Iskar M, Ishaque N, Klett LC, Kugler SJ, Muino JM, Teif VB, Poos AM, Großmann S, Erdel F, Tavernari D, Koser SD, Schumacher S, Brors B, König R, Remondini D, Vingron M, Stilgenbauer S, Lichter P, Zapatka M, Mertens D, Rippe K. Linking aberrant chromatin features in chronic lymphocytic leukemia to transcription factor networks. Mol Syst Biol 2019; 15:e8339. [PMID: 31118277 PMCID: PMC6529931 DOI: 10.15252/msb.20188339] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/02/2019] [Accepted: 04/17/2019] [Indexed: 12/22/2022] Open
Abstract
In chronic lymphocytic leukemia (CLL), a diverse set of genetic mutations is embedded in a deregulated epigenetic landscape that drives cancerogenesis. To elucidate the role of aberrant chromatin features, we mapped DNA methylation, seven histone modifications, nucleosome positions, chromatin accessibility, binding of EBF1 and CTCF, as well as the transcriptome of B cells from CLL patients and healthy donors. A globally increased histone deacetylase activity was detected and half of the genome comprised transcriptionally downregulated partially DNA methylated domains demarcated by CTCF CLL samples displayed a H3K4me3 redistribution and nucleosome gain at promoters as well as changes of enhancer activity and enhancer linkage to target genes. A DNA binding motif analysis identified transcription factors that gained or lost binding in CLL at sites with aberrant chromatin features. These findings were integrated into a gene regulatory enhancer containing network enriched for B-cell receptor signaling pathway components. Our study predicts novel molecular links to targets of CLL therapies and provides a valuable resource for further studies on the epigenetic contribution to the disease.
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Affiliation(s)
- Jan-Philipp Mallm
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Murat Iskar
- Division of Molecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Naveed Ishaque
- Division of Theoretical Bioinformatics and Heidelberg Center for Personalized Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Lara C Klett
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Sabrina J Kugler
- Mechanisms of Leukemogenesis, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | - Jose M Muino
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Vladimir B Teif
- School of Biological Sciences, University of Essex, Colchester, UK
| | - Alexandra M Poos
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Jena, Germany
- Network Modeling, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute Jena, Jena, Germany
| | - Sebastian Großmann
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Fabian Erdel
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
- Centre de Biologie Intégrative (CBI), CNRS, UPS, Toulouse, France
| | - Daniele Tavernari
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Sandra D Koser
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sabrina Schumacher
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
| | - Benedikt Brors
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rainer König
- Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Jena, Germany
- Network Modeling, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute Jena, Jena, Germany
| | - Daniel Remondini
- Department of Physics and Astronomy, Bologna University, Bologna, Italy
| | - Martin Vingron
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Peter Lichter
- Division of Molecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Marc Zapatka
- Division of Molecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniel Mertens
- Mechanisms of Leukemogenesis, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
| | - Karsten Rippe
- Division of Chromatin Networks, German Cancer Research Center (DKFZ) and Bioquant, Heidelberg, Germany
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119
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Evolution of CLL treatment - from chemoimmunotherapy to targeted and individualized therapy. Nat Rev Clin Oncol 2019; 15:510-527. [PMID: 29777163 DOI: 10.1038/s41571-018-0037-8] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
During the past 5 years, a number of highly active novel agents, including kinase inhibitors targeting BTK or PI3Kδ, an antagonist of the antiapoptotic protein BCL-2, and new anti-CD20 monoclonal antibodies, have been added to the therapeutic armamentarium for patients with chronic lymphocytic leukaemia (CLL). In these exciting times, care is needed to optimally integrate these novel agents into the traditional treatment algorithm without overlooking or compromising the benefits of established treatments, especially chemoimmunotherapy. A more personalized approach to CLL therapy that takes into account individual risk factors, patient characteristics, and their treatment preferences is now possible. Herein, we discuss the biological basis for the novel therapeutic agents and outline not only the major advantages of these agents over traditional therapies but also their adverse effects and the rationale for continued use of older versus newer types of therapy for selected patients with CLL. We conclude by providing recommendations for an individualized therapy approach for different populations of patients with CLL.
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120
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Morande PE, Sivina M, Uriepero A, Seija N, Berca C, Fresia P, Landoni AI, Di Noia JM, Burger JA, Oppezzo P. Ibrutinib therapy downregulates AID enzyme and proliferative fractions in chronic lymphocytic leukemia. Blood 2019; 133:2056-2068. [PMID: 30814061 PMCID: PMC7022232 DOI: 10.1182/blood-2018-09-876292] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 02/21/2019] [Indexed: 12/16/2022] Open
Abstract
Activation-induced cytidine deaminase (AID) initiates somatic hypermutation and class switch recombination of the immunoglobulin genes. As a trade-off for its physiological function, AID also contributes to tumor development through its mutagenic activity. In chronic lymphocytic leukemia (CLL), AID is overexpressed in the proliferative fractions (PFs) of the malignant B lymphocytes, and its anomalous expression has been associated with a clinical poor outcome. Recent preclinical data suggested that ibrutinib and idelalisib, 2 clinically approved kinase inhibitors, increase AID expression and genomic instability in normal and neoplastic B cells. These results raise concerns about a potential mutagenic risk in patients receiving long-term therapy. To corroborate these findings in the clinical setting, we analyzed AID expression and PFs in a CLL cohort before and during ibrutinib treatment. We found that ibrutinib decreases the CLL PFs and, interestingly, also reduces AID expression, which correlates with dampened AKT and Janus Kinase 1 signaling. Moreover, although ibrutinib increases AID expression in a CLL cell line, it is unable to do so in primary CLL samples. Our results uncover a differential response to ibrutinib between cell lines and the CLL clone and imply that ibrutinib could differ from idelalisib in their potential to induce AID in treated patients. Possible reasons for the discrepancy between preclinical and clinical findings, and their effect on treatment safety, are discussed.
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Affiliation(s)
- Pablo Elías Morande
- Research Laboratory on Chronic Lymphocytic Leukemia, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Mariela Sivina
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Angimar Uriepero
- Research Laboratory on Chronic Lymphocytic Leukemia, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Noé Seija
- Research Laboratory on Chronic Lymphocytic Leukemia, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Catalina Berca
- Research Laboratory on Chronic Lymphocytic Leukemia, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Pablo Fresia
- Unidad de Bioinformática, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Ana Inés Landoni
- Hospital Maciel, Administración de los Servicios de Salud del Estado, Ministerio de Salud, Montevideo, Uruguay
| | - Javier M Di Noia
- Division of Immunity and Viral Infections, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada; and
- Department of Medicine, Université de Montréal, Montréal, QC, Canada
| | - Jan A Burger
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Pablo Oppezzo
- Research Laboratory on Chronic Lymphocytic Leukemia, Institut Pasteur de Montevideo, Montevideo, Uruguay
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121
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Martino M, Ferreri A, Naso V, Moscato T, Loteta B, Gentile M, Morabito A, Provenzano F, Cimminiello M, Carella AM, Console G, Recchia AG. The use of ibrutinib before and after allogeneic stem cell transplantation. Expert Opin Orphan Drugs 2019. [DOI: 10.1080/21678707.2019.1609938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Massimo Martino
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Anna Ferreri
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Virginia Naso
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Tiziana Moscato
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Barbara Loteta
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Massimo Gentile
- Hematology Unit, Department of Hemato-Oncology, Ospedale Annunziata, Cosenza, Italy
| | - Antonella Morabito
- Pharmacy Unit, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Fabio Provenzano
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Michele Cimminiello
- Hematology and Stem Cell Transplant Unit, Azienda Ospedaliera San Carlo, Potenza, Italy
| | | | - Giuseppe Console
- Bone Marrow and Stem Cell Transplant Program Unit, Department of Hemato-Oncology and Radiotherapy, Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli, Reggio Calabria, Italy
| | - Anna Grazia Recchia
- Unità di Ricerca Biotecnologica (URB), Aprigliano ASP Cosenza, Aprigliano (Cosenza), Italy
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Gupta R, Li W, Yan XJ, Barrientos J, Kolitz JE, Allen SL, Rai K, Chiorazzi N, Mongini PKA. Mechanism for IL-15-Driven B Cell Chronic Lymphocytic Leukemia Cycling: Roles for AKT and STAT5 in Modulating Cyclin D2 and DNA Damage Response Proteins. THE JOURNAL OF IMMUNOLOGY 2019; 202:2924-2944. [PMID: 30988120 DOI: 10.4049/jimmunol.1801142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 03/13/2019] [Indexed: 12/25/2022]
Abstract
Clonal expansion of B cell chronic lymphocytic leukemia (B-CLL) occurs within lymphoid tissue pseudofollicles. IL-15, a stromal cell-associated cytokine found within spleens and lymph nodes of B-CLL patients, significantly boosts in vitro cycling of blood-derived B-CLL cells following CpG DNA priming. Both IL-15 and CpG DNA are elevated in microbe-draining lymphatic tissues, and unraveling the basis for IL-15-driven B-CLL growth could illuminate new therapeutic targets. Using CpG DNA-primed human B-CLL clones and approaches involving both immunofluorescent staining and pharmacologic inhibitors, we show that both PI3K/AKT and JAK/STAT5 pathways are activated and functionally important for IL-15→CD122/ɣc signaling in ODN-primed cells expressing activated pSTAT3. Furthermore, STAT5 activity must be sustained for continued cycling of CFSE-labeled B-CLL cells. Quantitative RT-PCR experiments with inhibitors of PI3K and STAT5 show that both contribute to IL-15-driven upregulation of mRNA for cyclin D2 and suppression of mRNA for DNA damage response mediators ATM, 53BP1, and MDC1. Furthermore, protein levels of these DNA damage response molecules are reduced by IL-15, as indicated by Western blotting and immunofluorescent staining. Bioinformatics analysis of ENCODE chromatin immunoprecipitation sequencing data from cell lines provides insight into possible mechanisms for STAT5-mediated repression. Finally, pharmacologic inhibitors of JAKs and STAT5 significantly curtailed B-CLL cycling when added either early or late in a growth response. We discuss how the IL-15-induced changes in gene expression lead to rapid cycling and possibly enhanced mutagenesis. STAT5 inhibitors might be an effective modality for blocking B-CLL growth in patients.
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Affiliation(s)
- Rashmi Gupta
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
| | - Wentian Li
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
| | - Xiao J Yan
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
| | | | - Jonathan E Kolitz
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
| | - Steven L Allen
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
| | - Kanti Rai
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and.,Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549
| | - Nicholas Chiorazzi
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030.,Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and.,Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549
| | - Patricia K A Mongini
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030; .,Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549
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123
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Yosifov DY, Wolf C, Stilgenbauer S, Mertens D. From Biology to Therapy: The CLL Success Story. Hemasphere 2019; 3:e175. [PMID: 31723816 PMCID: PMC6746030 DOI: 10.1097/hs9.0000000000000175] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 12/26/2018] [Accepted: 12/28/2018] [Indexed: 11/27/2022] Open
Abstract
Chemoimmunotherapy has been the standard of care for patients with chronic lymphocytic leukemia (CLL) over the last decade. Advances in monoclonal antibody technology have resulted in the development of newer generations of anti-CD20 antibodies with improved therapeutic effectiveness. In parallel, our knowledge about the distinctive biological characteristics of CLL has progressively deepened and has revealed the importance of B-cell receptor (BCR) signaling and upregulated antiapoptotic proteins for survival and expansion of malignant cell clones. This knowledge provided the basis for development of novel targeted agents that revolutionized treatment of CLL. Ibrutinib and idelalisib inhibit the Bruton tyrosine kinase (BTK) and phosphoinositide 3-kinase (PI3K) delta, respectively, thus interfering with supportive signals coming from the microenvironment via the BCR. These drugs induce egress of CLL cells from secondary lymphoid organs and remarkably improve clinical outcomes, especially for patients with unmutated immunoglobulin heavy-chain genes or with p53 abnormalities that do not benefit from classical treatment schemes. Latest clinical trial results have established ibrutinib with or without anti-CD20 antibodies as the preferred first-line treatment for most CLL patients, which will reduce the use of chemoimmunotherapy in the imminent future. Further advances are achieved with venetoclax, a BH3-mimetic that specifically inhibits the antiapoptotic B-cell lymphoma 2 protein and thus causes rapid apoptosis of CLL cells, which translates into deep and prolonged clinical responses including high rates of minimal residual disease negativity. This review summarizes recent advances in the development of targeted CLL therapies, including new combination schemes, novel BTK and PI3K inhibitors, spleen tyrosine kinase inhibitors, immunomodulatory drugs, and cellular immunotherapy.
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Affiliation(s)
- Deyan Y. Yosifov
- Department of Internal Medicine III, Ulm University, Ulm, Germany
- Cooperation Unit “Mechanisms of Leukemogenesis”, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christine Wolf
- Department of Internal Medicine III, Ulm University, Ulm, Germany
- Cooperation Unit “Mechanisms of Leukemogenesis”, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephan Stilgenbauer
- Department of Internal Medicine III, Ulm University, Ulm, Germany
- Klinik für Innere Medizin I, Universitätsklinikum des Saarlandes, Homburg, Germany
| | - Daniel Mertens
- Department of Internal Medicine III, Ulm University, Ulm, Germany
- Cooperation Unit “Mechanisms of Leukemogenesis”, German Cancer Research Center (DKFZ), Heidelberg, Germany
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124
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Daniele G, L'Abbate A, Turchiano A, Palumbo O, Carella M, Lo Cunsolo C, Iuzzolino P, Lonoce A, Hernández-Sánchez M, Minoia C, Leone P, Hernandez-Rivas JM, Storlazzi CT. 1q23.1 homozygous deletion and downregulation of Fc receptor-like family genes confer poor prognosis in chronic lymphocytic leukemia. Clin Exp Med 2019; 19:261-267. [PMID: 30877410 DOI: 10.1007/s10238-019-00551-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/11/2019] [Indexed: 12/25/2022]
Abstract
The identification of chromosome 1 translocations and deletions is a rare and poorly investigated event in chronic lymphocytic leukemia (CLL). Nevertheless, the identification of novel additional molecular alterations is of great interest, opening to new prognostic and therapeutic strategies for such heterogeneous hematological disease. We here describe a patient affected by CLL with a mutated IGHV status, showing a balanced t(1;3)(q23.1;q21.3) translocation and a der(18)t(1;18)(q24.2;p11.32), accompanying the recurrent 13q14 heterozygous deletion in all analyzed cells at onset. By combining whole-genome sequencing, SNP array, RNA sequencing, and FISH analyses, we defined a 1q23.1 biallelic minimally deleted region flanking translocations breakpoints at both derivative chromosome 1 homologues. The deletion resulted in the downregulation of the Fc receptor-like family genes FCRL1, FCRL2, and FCRL3 and in the lack of expression of FCRL5, observed by RT-qPCR. The mutational status of TP53, NOTCH1, SF3B1, MYD88, FBXW7, and XPO1 was investigated by targeted next-generation sequencing, detecting a frameshift deletion within NOTCH1 (c.7544_7545delCT). We hypothesize a loss of tumor suppressor function for FCRL genes, cooperating with NOTCH1 mutation and 13q14 genomic loss in our patient, both conferring a negative prognosis, independently from the known biological prognostic factors of CLL.
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Affiliation(s)
- Giulia Daniele
- Department of Biology, University of Bari "Aldo Moro", Via G. Orabona No. 4, 70126, Bari, Italy
| | - Alberto L'Abbate
- Department of Biology, University of Bari "Aldo Moro", Via G. Orabona No. 4, 70126, Bari, Italy
| | - Antonella Turchiano
- Department of Biology, University of Bari "Aldo Moro", Via G. Orabona No. 4, 70126, Bari, Italy
| | - Orazio Palumbo
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | - Massimo Carella
- Medical Genetics Unit, IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | | | | | - Angelo Lonoce
- Department of Biology, University of Bari "Aldo Moro", Via G. Orabona No. 4, 70126, Bari, Italy
| | - María Hernández-Sánchez
- Servicio de Hematología, Hospital Universitario de Salamanca, IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca, CSIC, Salamanca, Spain
| | - Carla Minoia
- Haematology Unit, IRCCS Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Patrizia Leone
- Department of Biomedical Sciences and Human Oncology, Internal Medicine Unit G. Baccelli, University of Bari Aldo Moro Medical School, Bari, Italy
| | - Jesus Maria Hernandez-Rivas
- Servicio de Hematología, Hospital Universitario de Salamanca, IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca, CSIC, Salamanca, Spain
| | - Clelia Tiziana Storlazzi
- Department of Biology, University of Bari "Aldo Moro", Via G. Orabona No. 4, 70126, Bari, Italy.
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125
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Casola S, Perucho L, Tripodo C, Sindaco P, Ponzoni M, Facchetti F. The B‐cell receptor in control of tumor B‐cell fitness: Biology and clinical relevance. Immunol Rev 2019; 288:198-213. [DOI: 10.1111/imr.12738] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Stefano Casola
- The FIRC Institute of Molecular Oncology (IFOM) Milan Italy
| | - Laura Perucho
- The FIRC Institute of Molecular Oncology (IFOM) Milan Italy
| | - Claudio Tripodo
- Tumor Immunology UnitDepartment of Health SciencesUniversity of Palermo Palermo Italy
- Tumor and Microenvironment Histopathology UnitThe FIRC Institute of Molecular Oncology (IFOM) Milan Italy
| | - Paola Sindaco
- Department of Emergency and Organ Transplantation (D.E.T.O.)Hematology SectionUniversity of Bari Bari Italy
| | - Maurilio Ponzoni
- Pathology and Lymphoid Malignancies UnitsAteneo Vita‐Salute San Raffaele Scientific Institute Milan Italy
| | - Fabio Facchetti
- Department of Molecular and Translational MedicineSection of PathologyUniversity of Brescia Brescia Italy
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126
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Schmidl C, Vladimer GI, Rendeiro AF, Schnabl S, Krausgruber T, Taubert C, Krall N, Pemovska T, Araghi M, Snijder B, Hubmann R, Ringler A, Runggatscher K, Demirtas D, de la Fuente OL, Hilgarth M, Skrabs C, Porpaczy E, Gruber M, Hoermann G, Kubicek S, Staber PB, Shehata M, Superti-Furga G, Jäger U, Bock C. Combined chemosensitivity and chromatin profiling prioritizes drug combinations in CLL. Nat Chem Biol 2019; 15:232-240. [PMID: 30692684 PMCID: PMC6746620 DOI: 10.1038/s41589-018-0205-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/16/2018] [Indexed: 01/01/2023]
Abstract
The Bruton tyrosine kinase (BTK) inhibitor ibrutinib has substantially improved therapeutic options for chronic lymphocytic leukemia (CLL). Although ibrutinib is not curative, it has a profound effect on CLL cells and may create new pharmacologically exploitable vulnerabilities. To identify such vulnerabilities, we developed a systematic approach that combines epigenome profiling (charting the gene-regulatory basis of cell state) with single-cell chemosensitivity profiling (quantifying cell-type-specific drug response) and bioinformatic data integration. By applying our method to a cohort of matched patient samples collected before and during ibrutinib therapy, we identified characteristic ibrutinib-induced changes that provide a starting point for the rational design of ibrutinib combination therapies. Specifically, we observed and validated preferential sensitivity to proteasome, PLK1, and mTOR inhibitors during ibrutinib treatment. More generally, our study establishes a broadly applicable method for investigating treatment-specific vulnerabilities by integrating the complementary perspectives of epigenetic cell states and phenotypic drug responses in primary patient samples.
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Affiliation(s)
- Christian Schmidl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Regensburg Centre for Interventional Immunology and University Medical Center of Regensburg, Regensburg, Germany
| | - Gregory I Vladimer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Allcyte GmbH, Vienna, Austria
| | - André F Rendeiro
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Susanne Schnabl
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Thomas Krausgruber
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | | | - Nikolaus Krall
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Allcyte GmbH, Vienna, Austria
| | - Tea Pemovska
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Mohammad Araghi
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Berend Snijder
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
| | - Rainer Hubmann
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Anna Ringler
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Christian Doppler Laboratory for Chemical Epigenetics and Anti-Infectives, CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Kathrin Runggatscher
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Christian Doppler Laboratory for Chemical Epigenetics and Anti-Infectives, CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Dita Demirtas
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Oscar Lopez de la Fuente
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Allcyte GmbH, Vienna, Austria
| | - Martin Hilgarth
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Cathrin Skrabs
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Edit Porpaczy
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Michaela Gruber
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Gregor Hoermann
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Stefan Kubicek
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Christian Doppler Laboratory for Chemical Epigenetics and Anti-Infectives, CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Philipp B Staber
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Medhat Shehata
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Ulrich Jäger
- Department of Medicine I, Division of Hematology and Hemostaseology, and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.
- Max Planck Institute for Informatics, Saarland Informatics Campus, Saarbrücken, Germany.
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria.
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127
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Iype J, Datta M, Khadour A, Übelhart R, Nicolò A, Rollenske T, Dühren-von Minden M, Wardemann H, Maity PC, Jumaa H. Differences in Self-Recognition between Secreted Antibody and Membrane-Bound B Cell Antigen Receptor. THE JOURNAL OF IMMUNOLOGY 2019; 202:1417-1427. [PMID: 30683703 DOI: 10.4049/jimmunol.1800690] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 12/20/2018] [Indexed: 11/19/2022]
Abstract
The random gene segment rearrangement during B cell development ensures Ab repertoire diversity. Because this process might generate autoreactive specificities, it has been proposed that stringent selection mechanisms prevent the development of autoreactive B cells. However, conventional assays to identify autoreactive B cells usually employ in vitro-generated Abs, which differ from membrane-bound BCRs. In this study, we used a cell-based assay to investigate the autoreactivity of membrane-bound BCRs derived from different B cell developmental stages of human peripheral blood. Contrasted to soluble Ab counterparts, only a few of the tested BCRs were autoreactive, although the cell-based assay sensitively detects feeble Ag recognition of a germline-reverted murine BCR that was selected after OVA immunization of mice, whereas conventional assays failed to do so. Together, these data suggest that proper identification of autoreactive B cells requires the membrane-bound BCR, as the soluble Ab may largely differ from its BCR counterpart in Ag binding.
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Affiliation(s)
- Joseena Iype
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Moumita Datta
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Ahmad Khadour
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Rudolf Übelhart
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Antonella Nicolò
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Tim Rollenske
- Division of B Cell Immunology, German Cancer Research Center, 69120 Heidelberg, Germany
| | | | - Hedda Wardemann
- Division of B Cell Immunology, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Palash C Maity
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
| | - Hassan Jumaa
- Institute of Immunology, Ulm University Medical Center, 89081 Ulm, Germany; and
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128
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Thurgood LA, Dwyer ES, Lower KM, Chataway TK, Kuss BJ. Altered expression of metabolic pathways in CLL detected by unlabelled quantitative mass spectrometry analysis. Br J Haematol 2019; 185:65-78. [PMID: 30656643 DOI: 10.1111/bjh.15751] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/26/2018] [Indexed: 12/27/2022]
Abstract
Chronic lymphocytic leukaemia (CLL) remains the most common incurable malignancy of B cells in the western world. Patient outcomes are heterogeneous and can be difficult to predict with current prognostic markers. Here, we used a quantitative label-free proteomic technique to ascertain differences in the B-cell proteome from healthy donors and CLL patients with either mutated (M-CLL) or unmutated (UM-CLL) IGHV to identify new prognostic markers. In peripheral B-CLL cells, 349 (22%) proteins were differentially expressed between normal B cells and B-CLL cells and 189 (12%) were differentially expressed between M-CLL and UM-CLL. We also examined the proteome of proliferating CLL cells in the lymph nodes, and identified 76 (~8%) differentially expressed proteins between healthy and CLL lymph nodes. B-CLL cells show over-expression of proteins involved in lipid and cholesterol metabolism. A comprehensive lipidomic analysis highlighted large differences in glycolipids and sphingolipids. A shift was observed from the pro-apoptotic lipid ceramide towards the anti-apoptotic/chemoresistant lipid, glucosylceramide, which was more evident in patients with aggressive disease (UM-CLL). This study details a novel quantitative proteomic technique applied for the first time to primary patient samples in CLL and highlights that primary CLL lymphocytes display markers of a metabolic shift towards lipid synthesis and breakdown.
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Affiliation(s)
- Lauren A Thurgood
- Discipline Molecular Medicine and Pathology, College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Eveline S Dwyer
- Discipline Molecular Medicine and Pathology, College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Karen M Lower
- Discipline Molecular Medicine and Pathology, College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Tim K Chataway
- Flinders Proteomic Facility, Department of Human Physiology, College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Bryone J Kuss
- Discipline Molecular Medicine and Pathology, College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia.,Haematology, Molecular Medicine and Pathology, SA Pathology, Flinders Medical Centre, Adelaide, South Australia, Australia
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129
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Lee-Vergés E, Hanna BS, Yazdanparast H, Rodríguez V, Rodríguez ML, Giró A, Vidal-Crespo A, Rosich L, Amador V, Aymerich M, Villamor N, Delgado J, Lichter P, Pérez-Galán P, López-Guerra M, Campo E, Seiffert M, Colomer D. Selective BTK inhibition improves bendamustine therapy response and normalizes immune effector functions in chronic lymphocytic leukemia. Int J Cancer 2019; 144:2762-2773. [PMID: 30468254 DOI: 10.1002/ijc.32010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/18/2018] [Accepted: 11/09/2018] [Indexed: 12/29/2022]
Abstract
The Bruton's tyrosine kinase (BTK) inhibitor ibrutinib has been shown to be highly effective in patients with chronic lymphocytic leukemia (CLL) and is approved for CLL treatment. Unfortunately, resistance and intolerance to ibrutinib has been observed in several studies, opening the door for more specific BTK inhibitors. CC-292 (spebrutinib) is a BTK inhibitor with increased specificity for BTK and less inhibition of other kinases. Our in vitro studies showed that CC-292 potently inhibited B-cell receptor signaling, activation, proliferation and chemotaxis of CLL cells. In in vivo studies using the adoptive transfer TCL1 mouse model of CLL, CC-292 reduced tumor load and normalized tumor-associated expansion of T cells and monocytes, while not affecting T cell function. Importantly, the combination of CC-292 and bendamustine impaired CLL cell proliferation in vivo and enhanced the control of CLL progression. Our results demonstrate that CC-292 is a specific BTK inhibitor with promising performance in combination with bendamustine in CLL. Further clinical trials are warranted to investigate the therapeutic efficacy of this combination regimen.
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Affiliation(s)
- Eriong Lee-Vergés
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Bola S Hanna
- Molecular Genetics, German Cancer Research Center, Heidelberg, Germany
| | | | - Vanina Rodríguez
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | - Ariadna Giró
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Anna Vidal-Crespo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Laia Rosich
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Virginia Amador
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Marta Aymerich
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Hospital Clínic, Barcelona, Spain
| | - Neus Villamor
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Hospital Clínic, Barcelona, Spain
| | - Julio Delgado
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematology Department, Hospital Clinic, Barcelona, Spain
| | - Peter Lichter
- Molecular Genetics, German Cancer Research Center, Heidelberg, Germany
| | - Patricia Pérez-Galán
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Mònica López-Guerra
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Hospital Clínic, Barcelona, Spain
| | - Elías Campo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Hospital Clínic, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | - Martina Seiffert
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain
| | - Dolors Colomer
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Barcelona, Spain.,Hematopathology Unit, Hospital Clínic, Barcelona, Spain.,University of Barcelona, Barcelona, Spain
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130
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Maity PC, Datta M, Nicolò A, Jumaa H. Isotype Specific Assembly of B Cell Antigen Receptors and Synergism With Chemokine Receptor CXCR4. Front Immunol 2019. [PMID: 30619343 DOI: 10.3389/fimmu.2018.02988.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Expression of the membrane-bound form of the immunoglobulin (Ig) as part of the antigen receptor is indispensable for both the development and the effector function of B cells. Among five known isotypes, IgM and IgD are the common B cell antigen receptors (BCRs) that are co-expressed in naïve B cells. Despite having identical antigen specificity and being associated with the same signaling heterodimer Igα/Igβ (CD79a/CD79b), IgM and IgD-BCR isotypes functionally differ from each other in the manner of antigen binding, the formation of isolated nanoclusters and in their interaction with co-receptors such as CD19 and CXCR4 on the plasma membrane. With recent developments in experimental techniques, it is now possible to investigate the nanoscale organization of the BCR and better understand early events of BCR engagement. Interestingly, the cytoskeleton network beneath the membrane controls the BCR isotype-specific organization and its interaction with co-receptors. BCR triggering results in reorganization of the cytoskeleton network, which is further modulated by isotype-specific signals from co-receptors. For instance, IgD-BCR is closely associated with CXCR4 on mature B cells and this close proximity allows CXCR4 to employ the BCR machinery as signaling hub. In this review, we discuss the functional specificity and nanocluster assembly of BCR isotypes and the consequences of cross-talk between CXCR4 and IgD-BCR. Furthermore, given the role of BCR and CXCR4 signaling in the development and survival of leukemic B cells, we discuss the consequences of the cross-talk between CXCR4 and the BCR for controlling the growth of transformed B cells.
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Affiliation(s)
| | - Moumita Datta
- Institute of Immunology, Ulm University, Ulm, Germany
| | | | - Hassan Jumaa
- Institute of Immunology, Ulm University, Ulm, Germany
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131
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Maity PC, Datta M, Nicolò A, Jumaa H. Isotype Specific Assembly of B Cell Antigen Receptors and Synergism With Chemokine Receptor CXCR4. Front Immunol 2019; 9:2988. [PMID: 30619343 PMCID: PMC6305424 DOI: 10.3389/fimmu.2018.02988] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/04/2018] [Indexed: 12/20/2022] Open
Abstract
Expression of the membrane-bound form of the immunoglobulin (Ig) as part of the antigen receptor is indispensable for both the development and the effector function of B cells. Among five known isotypes, IgM and IgD are the common B cell antigen receptors (BCRs) that are co-expressed in naïve B cells. Despite having identical antigen specificity and being associated with the same signaling heterodimer Igα/Igβ (CD79a/CD79b), IgM and IgD-BCR isotypes functionally differ from each other in the manner of antigen binding, the formation of isolated nanoclusters and in their interaction with co-receptors such as CD19 and CXCR4 on the plasma membrane. With recent developments in experimental techniques, it is now possible to investigate the nanoscale organization of the BCR and better understand early events of BCR engagement. Interestingly, the cytoskeleton network beneath the membrane controls the BCR isotype-specific organization and its interaction with co-receptors. BCR triggering results in reorganization of the cytoskeleton network, which is further modulated by isotype-specific signals from co-receptors. For instance, IgD-BCR is closely associated with CXCR4 on mature B cells and this close proximity allows CXCR4 to employ the BCR machinery as signaling hub. In this review, we discuss the functional specificity and nanocluster assembly of BCR isotypes and the consequences of cross-talk between CXCR4 and IgD-BCR. Furthermore, given the role of BCR and CXCR4 signaling in the development and survival of leukemic B cells, we discuss the consequences of the cross-talk between CXCR4 and the BCR for controlling the growth of transformed B cells.
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Affiliation(s)
| | - Moumita Datta
- Institute of Immunology, Ulm University, Ulm, Germany
| | | | - Hassan Jumaa
- Institute of Immunology, Ulm University, Ulm, Germany
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132
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Immunoglobulin Gene Analysis in Chronic Lymphocytic Leukemia. Methods Mol Biol 2019; 1881:51-62. [PMID: 30350197 DOI: 10.1007/978-1-4939-8876-1_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The formation of B-cell receptor immunoglobulin (BcR IG) is the result of a multi-step process that starts at the pro-B cell stage with the VDJ gene recombination of IG genes of the heavy chain, followed by VJ recombination of the light chain genes at the pre-B II cell stage. As a result, a fully functional BcR IG is expressed on the surface of any given naive B cell. After antigen encounter, somatic hypermutation (SHM) and class-switch recombination (CSR) act on the rearranged IG genes within the context of affinity maturation, leading to the expression of a BcR IG with unique immunogenetic and functional characteristics. Since B-cell neoplasms arise from the transformation of a single B cell, this renders IG gene rearrangements ideal clonal markers as they will be identical in all neoplastic cells of each individual clone. Furthermore, the rearranged IG sequence can also serve as a cell development/maturation marker, given that its configuration is tightly linked to specific B-cell developmental stages. Finally, in certain instances, as in the case of chronic lymphocytic leukemia (CLL), the clonotypic IG sequence and, more specifically, the load of somatic hypermutations within the rearranged IG heavy variable (IGHV) gene, holds prognostic and potentially predictive value. However, in order to take full advantage of the information provided from the analysis of the clonotypic IG gene rearrangement sequences, robust methods and tools need to be applied. Here, we provide details regarding the methodologies necessary to ensure reliable IG sequence analysis based on the recognized expertise of the European Research initiative on CLL (ERIC). All methodological and analytical steps are described below, starting from the isolation of blood mononuclear cells (PBMC), moving to the identification of the clonotypic IG rearrangement and ending with the accurate interpretation of the SHM status.
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133
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Agathangelidis A, Psomopoulos F, Stamatopoulos K. Stereotyped B Cell Receptor Immunoglobulins in B Cell Lymphomas. Methods Mol Biol 2019; 1956:139-155. [PMID: 30779034 DOI: 10.1007/978-1-4939-9151-8_7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Comprehensive analysis of the clonotypic B cell receptor immunoglobulin (BcR IG) gene rearrangement sequences in patients with mature B cell neoplasms has led to the identification of significant repertoire restrictions, culminating in the discovery of subsets of patients expressing highly similar, stereotyped BcR IG. This finding strongly supports selection by common epitopes or classes of structurally similar epitopes in the ontogeny of these tumors. BcR IG stereotypy was initially described in chronic lymphocytic leukemia (CLL), where the stereotyped fraction of the disease accounts for a remarkable one-third of patients. However, subsequent studies showed that stereotyped BcR IG are also present in other neoplasms of mature B cells, including mantle cell lymphoma (MCL) and splenic marginal zone lymphoma (SMZL). Subsequent cross-entity comparisons led to the conclusion that stereotyped IG are mostly "disease-specific," implicating distinct immunopathogenetic processes. Interestingly, mounting evidence suggests that a molecular subclassification of lymphomas based on BcR IG stereotypy is biologically and clinically relevant. Indeed, particularly in CLL, patients assigned to the same subset due to expressing a particular stereotyped BcR IG display remarkably consistent biological background and clinical course, at least for major and well-studied subsets. Thus, the robust assignment to stereotyped subsets may assist in the identification of mechanisms underlying disease onset and progression, while also refining risk stratification. In this book chapter, we provide an overview of the recent BcR IG stereotypy studies in mature B cell malignancies and outline previous and current methodological approaches used for the identification of stereotyped IG.
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Affiliation(s)
- Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
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134
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Hanna BS, Roessner PM, Scheffold A, Jebaraj BMC, Demerdash Y, Öztürk S, Lichter P, Stilgenbauer S, Seiffert M. PI3Kδ inhibition modulates regulatory and effector T-cell differentiation and function in chronic lymphocytic leukemia. Leukemia 2018; 33:1427-1438. [DOI: 10.1038/s41375-018-0318-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/27/2018] [Accepted: 10/29/2018] [Indexed: 01/04/2023]
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135
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Almeida RS, Costa E Silva M, Coutinho LL, Garcia Gomes R, Pedrosa F, Massaro JD, Donadi EA, Lucena-Silva N. MicroRNA expression profiles discriminate childhood T- from B-acute lymphoblastic leukemia. Hematol Oncol 2018; 37:103-112. [PMID: 30393877 DOI: 10.1002/hon.2567] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 07/10/2018] [Accepted: 10/23/2018] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) play a critical role on biological and cellular processes; the search for functional markers may be of importance for differential diagnosis, prognosis, and development of new therapeutic regimens. In this context, we evaluated the bone marrow miRNA profile of Brazilian children exhibiting T- or B-cell acute lymphoblastic leukemia (T-ALL or B-ALL), using massive parallel sequencing, using the HiSeq 2500 platform (Illumina). The differential expression analysis was conducted considering a leave-one-out approach and FDR ≤ 0.05. Machine learning algorithms were applied to search for the disease subset biomarkers. Target prediction, functional enrichment, and classification of biological categories were also performed. Sixteen miRNAs were differentially expressed between T- and B-ALL, of which 10 (miR-708-5p, miR-497-5p, miR-151a-5p, miR-151b, miR-371b-5p, miR-455-5p, miR-195-5p, miR-1266-5p, miR-574-5p, and miR-425-5p) were downregulated and six (miR-450b-5p, miR-450a-5p, miR-542-5p, miR-424-5p, miR-629-5p, and miR-29c-5p) were upregulated in childhood T-ALL. These miRNAs may be used for distinguishing childhood lymphoblastic leukemia subtypes, since it provided the clear separation of patients in these two distinct groups. Six relevant biological pathways were identified according to their role in leukemia, namely, viral carcinogenesis, cell cycle, and B-cell receptor signaling pathways for induced miRNAs and TGF-beta signaling, apoptosis, and NF-kappa B signaling for the repressed miRNAs, of which several miRNA gene targets participate in cell differentiation and hematopoiesis processes. Machine learning analysis pointed out miR-29c-5p expression as the best discriminator between childhood T- and B-ALL, which is involved in calcium signaling, critical for B-cell lymphocyte fate. Further studies are needed to assure the role of the 16 miRNAs and miR-29c-5p on acute lymphoblastic leukemia subtypes and on disease prognosis.
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Affiliation(s)
- Renata Santos Almeida
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Recife, Brazil
| | - Matheus Costa E Silva
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Luiz Lehmann Coutinho
- Animal Biotechnology Laboratory, Animal Science Department, University of São Paulo (USP)/Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, Brazil
| | - Renan Garcia Gomes
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Recife, Brazil
| | - Francisco Pedrosa
- Pediatric Oncology, Instituto de Medicina Integral Professor Fernando Figueira (IMIP) Hospital, Recife, Brazil
| | - Juliana Doblas Massaro
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Eduardo Antônio Donadi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Norma Lucena-Silva
- Laboratory of Immunogenetics, Department of Immunology, Aggeu Magalhães Institute, Recife, Brazil.,Pediatric Oncology, Instituto de Medicina Integral Professor Fernando Figueira (IMIP) Hospital, Recife, Brazil
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136
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Haseeb M, Anwar MA, Choi S. Molecular Interactions Between Innate and Adaptive Immune Cells in Chronic Lymphocytic Leukemia and Their Therapeutic Implications. Front Immunol 2018; 9:2720. [PMID: 30542344 PMCID: PMC6277854 DOI: 10.3389/fimmu.2018.02720] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/05/2018] [Indexed: 12/15/2022] Open
Abstract
Innate immunity constitutes the first line of host defense against various anomalies in humans, and it also guides the adaptive immune response. The function of innate immune components and adaptive immune components are interlinked in hematological malignancies including chronic lymphocytic leukemia (CLL), and molecular interactions between innate and adaptive immune components are crucial for the development, progression and the therapeutic outcome of CLL. In this leukemia, genetic mutations in B cells and B cell receptors (BCR) are key driving factors along with evasion of cytotoxic T lymphocytes and promotion of regulatory T cells. Similarly, the release of various cytokines from CLL cells triggers the protumor phenotype in macrophages that further edges the CLL cells. Moreover, under the influence of various cytokines, dendritic cells are unable to mature and trigger T cell mediated antitumor response. The phenotypes of these cells are ultimately controlled by respective signaling pathways, the most notables are BCR, Wnt, Notch, and NF-κB, and their activation affects the cytokine profile that controls the pathogenesis of CLL, and challenge its treatment. There are several novel substances for CLL under clinical development, including kinase inhibitors, antibodies, and immune-modulators that offer new hopes. DC-based vaccines and CAR T cell therapy are promising tools; however, further studies are required to precisely dissect the molecular interactions among various molecular entities. In this review, we systematically discuss the involvement, common targets and therapeutic interventions of various cells for the better understanding and therapy of CLL.
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Affiliation(s)
- Muhammad Haseeb
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | - Muhammad Ayaz Anwar
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
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137
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Rodriguez CM, Bussi C, Arroyo DS, Sastre D, Heller V, Stanganelli C, Slavutsky I, Iribarren P. Effects of rapamycin in combination with fludarabine on primary chronic lymphocytic leukemia cells. Leuk Lymphoma 2018; 60:1299-1303. [PMID: 30407097 DOI: 10.1080/10428194.2018.1529309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Cecilia M Rodriguez
- a Hospital Nacional de Clínicas, Facultad de Ciencias Médicas , Universidad Nacional de Córdoba , Córdoba , Argentina.,b Centro de Investigación en Bioquímica Clínica e Inmunología (CIBICI-CONICET) Facultad de Ciencias Químicas , Universidad Nacional de Córdoba , Córdoba , Argentina
| | - Claudio Bussi
- b Centro de Investigación en Bioquímica Clínica e Inmunología (CIBICI-CONICET) Facultad de Ciencias Químicas , Universidad Nacional de Córdoba , Córdoba , Argentina
| | - Daniela S Arroyo
- a Hospital Nacional de Clínicas, Facultad de Ciencias Médicas , Universidad Nacional de Córdoba , Córdoba , Argentina.,b Centro de Investigación en Bioquímica Clínica e Inmunología (CIBICI-CONICET) Facultad de Ciencias Químicas , Universidad Nacional de Córdoba , Córdoba , Argentina
| | - Dario Sastre
- a Hospital Nacional de Clínicas, Facultad de Ciencias Médicas , Universidad Nacional de Córdoba , Córdoba , Argentina
| | - Viviana Heller
- a Hospital Nacional de Clínicas, Facultad de Ciencias Médicas , Universidad Nacional de Córdoba , Córdoba , Argentina
| | - Carmen Stanganelli
- c Patología Molecular , Instituto de Investigaciones Hematológicas Academia Nacional de Medicina , Buenos Aires , Argentina
| | - Irma Slavutsky
- d Laboratorio de Genética de Neoplasias Linfoides , Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina , Buenos Aires , Argentina
| | - Pablo Iribarren
- b Centro de Investigación en Bioquímica Clínica e Inmunología (CIBICI-CONICET) Facultad de Ciencias Químicas , Universidad Nacional de Córdoba , Córdoba , Argentina
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138
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Yigit B, Wang N, Herzog RW, Terhorst C. SLAMF6 in health and disease: Implications for therapeutic targeting. Clin Immunol 2018; 204:3-13. [PMID: 30366106 DOI: 10.1016/j.clim.2018.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Burcu Yigit
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Ninghai Wang
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Roland W Herzog
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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139
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Di Marco M, Ramassone A, Pagotto S, Anastasiadou E, Veronese A, Visone R. MicroRNAs in Autoimmunity and Hematological Malignancies. Int J Mol Sci 2018; 19:ijms19103139. [PMID: 30322050 PMCID: PMC6213554 DOI: 10.3390/ijms19103139] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 10/02/2018] [Indexed: 12/13/2022] Open
Abstract
Autoimmunity and hematological malignancies are often concomitant in patients. A causal bidirectional relationship exists between them. Loss of immunological tolerance with inappropriate activation of the immune system, likely due to environmental and genetic factors, can represent a breeding ground for the appearance of cancer cells and, on the other hand, blood cancers are characterized by imbalanced immune cell subsets that could support the development of the autoimmune clone. Considerable effort has been made for understanding the proteins that have a relevant role in both processes; however, literature advances demonstrate that microRNAs (miRNAs) surface as the epigenetic regulators of those proteins and control networks linked to both autoimmunity and hematological malignancies. Here we review the most up-to-date findings regarding the miRNA-based molecular mechanisms that underpin autoimmunity and hematological malignancies.
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Affiliation(s)
- Mirco Di Marco
- Ageing Research Center and Translational medicine-CeSI-MeT, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences (DSMOB), "G. d'Annunzio" University Chieti-Pescara, 66100 Chieti, Italy.
| | - Alice Ramassone
- Ageing Research Center and Translational medicine-CeSI-MeT, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences (DSMOB), "G. d'Annunzio" University Chieti-Pescara, 66100 Chieti, Italy.
| | - Sara Pagotto
- Ageing Research Center and Translational medicine-CeSI-MeT, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences (DSMOB), "G. d'Annunzio" University Chieti-Pescara, 66100 Chieti, Italy.
| | - Eleni Anastasiadou
- Harvard Medical School Initiative for RNA Medicine, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Angelo Veronese
- Ageing Research Center and Translational medicine-CeSI-MeT, 66100 Chieti, Italy.
- Department of Medicine and Aging Science (DMSI), "G. d'Annunzio" University Chieti-Pescara, 66100 Chieti, Italy.
| | - Rosa Visone
- Ageing Research Center and Translational medicine-CeSI-MeT, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences (DSMOB), "G. d'Annunzio" University Chieti-Pescara, 66100 Chieti, Italy.
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140
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Dezorella N, Ashkenazi E, Shapiro M, Perry C, Kamdjou T, Katz BZ, Herishanu Y. Wide-range effects of the MALT-1 inhibitor Mi-2 in CLL cells results in apoptosis. Leuk Lymphoma 2018; 60:817-820. [DOI: 10.1080/10428194.2018.1498489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Nili Dezorella
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Enosh Ashkenazi
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Mika Shapiro
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Chava Perry
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Talia Kamdjou
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ben-Zion Katz
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yair Herishanu
- Department of Hematology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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141
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Gupta R, Yan XJ, Barrientos J, Kolitz JE, Allen SL, Rai K, Chiorazzi N, Mongini PKA. Mechanistic Insights into CpG DNA and IL-15 Synergy in Promoting B Cell Chronic Lymphocytic Leukemia Clonal Expansion. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:1570-1585. [PMID: 30068596 PMCID: PMC6103916 DOI: 10.4049/jimmunol.1800591] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/26/2018] [Indexed: 12/30/2022]
Abstract
Malignant cell growth within patients with B cell chronic lymphocytic leukemia (B-CLL) is largely restricted to lymphoid tissues, particularly lymph nodes. The recent in vitro finding that TLR-9 ligand (oligodeoxynucleotide [ODN]) and IL-15 exhibit strong synergy in promoting B-CLL growth may be particularly relevant to growth in these sites. This study shows IL-15-producing cells are prevalent within B-CLL-infiltrated lymph nodes and, using purified B-CLL cells from blood, investigates the mechanism for ODN and IL-15 synergy in driving B-CLL growth. ODN boosts baseline levels of phospho-RelA(S529) in B-CLL and promotes NF-κB-driven increases in IL15RA and IL2RB mRNA, followed by elevated IL-15Rα and IL-2/IL-15Rβ (CD122) protein. IL-15→CD122 signaling during a critical interval, 20 to 36-48 h following initial ODN exposure, is required for optimal induction of the cycling process. Furthermore, experiments with neutralizing anti-IL-15 and anti-CD122 mAbs indicate that clonal expansion requires continued IL-15/CD122 signaling during cycling. The latter is consistent with evidence of heightened IL2RB mRNA in the fraction of recently proliferated B-CLL cells within patient peripheral blood. Compromised ODN+IL-15 growth with limited cell density is consistent with a role for upregulated IL-15Rα in facilitating homotypic trans IL-15 signaling, although there may be other explanations. Together, the findings show that ODN and IL-15 elicit temporally distinct signals that function in a coordinated manner to drive B-CLL clonal expansion.
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Affiliation(s)
- Rashmi Gupta
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
| | - Xiao J Yan
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
| | - Jacqueline Barrientos
- Department of Medicine, North Shore University Hospital-Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11303
| | - Jonathan E Kolitz
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
- Department of Medicine, North Shore University Hospital-Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11303
- Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
| | - Steven L Allen
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
- Department of Medicine, North Shore University Hospital-Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11303
- Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
| | - Kanti Rai
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
- Department of Medicine, North Shore University Hospital-Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11303
- Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
| | - Nicholas Chiorazzi
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030
- Department of Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549; and
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549
| | - Patricia K A Mongini
- The Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030;
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142
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Spaner DE, Venema R, Huang J, Norris P, Lazarus A, Wang G, Shi Y. Association of blood IgG with tumor necrosis factor-alpha and clinical course of chronic lymphocytic leukemia. EBioMedicine 2018; 35:222-232. [PMID: 30174282 PMCID: PMC6156707 DOI: 10.1016/j.ebiom.2018.08.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 08/14/2018] [Accepted: 08/20/2018] [Indexed: 11/16/2022] Open
Abstract
The intrinsic humoral immunodeficiency of chronic lymphocytic leukemia (CLL) is often managed with immunoglobulin replacement therapy (IgRT) to maintain IgG levels in the low-normal range (6–8 g/L) but optimal targets for IgG and timing to commence IgRT are unclear. IgG levels fell near 6 g/L at rates of −0.85±0.14 g/L/year in 51 patients who required treatment for CLL within 4.5±0.4 years from initial diagnosis and − 0.27±0.04 g/L/year in 40 patients with progressive disease who remained untreated after 8.5±0.5 years. In contrast, endogenous IgG levels remained above 8 g/L in patients with highly indolent disease (n = 25) and TNFα and beta-2-microglobulin (β2M) in blood decreased when IgRT was used to increase IgG levels over 9 g/L. At 15 g/L but not 5 g/L, the IgRT product Hizentra® inhibited B cell receptor (BCR)-activation, TNFα production, and survival in vitro, particularly of CLL cells that spontaneously made little TNFα. These findings suggest deterioration of the humoral immune system is associated with progressive CLL and altering the dosing of IgRT to achieve higher than conventional IgG target levels may have therapeutic activity. Immunoglobulin levels decline at rates that reflect the clinical course of CLL. IgG levels over 10 g/L achieved with replacement therapy are associated with evidence of disease control in vivo and inhibition of BCR-mediated activation of CLL cells in vitro. Monitoring rates of decline of Ig levels in CLL patients gives biological information on disease severity. Appropriate IgG target levels for immunoglobulin replacement therapy in CLL may be much higher than for patients with other immunodeficiencies.
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Affiliation(s)
- David E Spaner
- Biology Platform, Sunnybrook Research Institute, Toronto M4N 3M5, Canada; Dept. of Immunology, University of Toronto, Toronto M5S 1A8, Canada; Dept. of Medical Biophysics, University of Toronto, Toronto M5G 2M9, Canada; Sunnybrook Odette Cancer Center, Toronto M4N 3M5, Canada; Dept. of Medicine, University of Toronto, Toronto M5G 2C4, Canada.
| | - Robertson Venema
- Biology Platform, Sunnybrook Research Institute, Toronto M4N 3M5, Canada
| | - Justin Huang
- Biology Platform, Sunnybrook Research Institute, Toronto M4N 3M5, Canada
| | - Peter Norris
- Keenan Research Center, St. Michael's Hospital, Toronto M5B 1T8, Canada; Dept. of Laboratory Medicine and Pathobiology, University of Toronto, M5S 1A1, Canada
| | - Alan Lazarus
- Keenan Research Center, St. Michael's Hospital, Toronto M5B 1T8, Canada; Dept. of Laboratory Medicine and Pathobiology, University of Toronto, M5S 1A1, Canada
| | - Guizhi Wang
- Biology Platform, Sunnybrook Research Institute, Toronto M4N 3M5, Canada
| | - Yonghong Shi
- Biology Platform, Sunnybrook Research Institute, Toronto M4N 3M5, Canada
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143
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Martini V, Frezzato F, Severin F, Raggi F, Trimarco V, Martinello L, Molfetta R, Visentin A, Facco M, Semenzato G, Paolini R, Trentin L. Abnormal regulation of BCR signalling by c-Cbl in chronic lymphocytic leukaemia. Oncotarget 2018; 9:32219-32231. [PMID: 30181811 PMCID: PMC6114956 DOI: 10.18632/oncotarget.25951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/21/2018] [Indexed: 11/25/2022] Open
Abstract
Abnormalities of molecules involved in signal transduction pathways are connected to Chronic Lymphocytic Leukemia (CLL) pathogenesis and a critical role has been already ascribed to B-Cell Receptor (BCR)-Lyn axis. E3 ubiquitin ligase c-Cbl, working together with adapter protein CIN85, controls the degradation of protein kinases involved in BCR signaling. To investigate cell homeostasis in CLL, we studied c-Cbl since in normal B cells it is involved in the ubiquitin-dependent Lyn degradation and in the down-regulation of BCR signaling. We found that c-Cbl is overexpressed and not ubiquitinated after BCR engagement. We observed that c-Cbl did not associate to CIN85 in CLL with respect to normal B cells at steady state, nor following BCR engagement. c-Cbl association to Lyn was not detectable in CLL after BCR stimulation, as it happens in normal B cells. In some CLL patients, c-Cbl is constitutively phosphorylated at Y731 and in the same subjects, it associated to regulatory subunit p85 of PI3K. Moreover, c-Cbl is constitutive associated to Cortactin in those CLL patients presenting Cortactin overexpression and bad prognosis. These results support the hypothesis that c-Cbl, rather than E3 ligase activity, could have an adaptor function in turn influencing cell homeostasis in CLL.
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Affiliation(s)
- Veronica Martini
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Federica Frezzato
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Filippo Severin
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Flavia Raggi
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Valentina Trimarco
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Leonardo Martinello
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Rosa Molfetta
- Department of Molecular Medicine, University of La Sapienza, Rome, Italy
| | - Andrea Visentin
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Monica Facco
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Gianpietro Semenzato
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
| | - Rossella Paolini
- Department of Molecular Medicine, University of La Sapienza, Rome, Italy
| | - Livio Trentin
- Department of Medicine, Hematology and Clinical Immunology Branch, University School of Medicine, Padua, Italy.,Venetian Institute of Molecular Medicine, VIMM, Padua, Italy
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144
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Martinelli S, Maffei R, Fiorcari S, Quadrelli C, Zucchini P, Benatti S, Potenza L, Luppi M, Marasca R. Idelalisib impairs T-cell-mediated immunity in chronic lymphocytic leukemia. Haematologica 2018; 103:e598-e601. [PMID: 29976737 DOI: 10.3324/haematol.2017.187070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Silvia Martinelli
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Rossana Maffei
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Stefania Fiorcari
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Chiara Quadrelli
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Patrizia Zucchini
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Stefania Benatti
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Leonardo Potenza
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Mario Luppi
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Roberto Marasca
- Hematology Division, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy
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145
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Stamatopoulos B, Smith T, Crompot E, Pieters K, Clifford R, Mraz M, Robbe P, Burns A, Timbs A, Bruce D, Hillmen P, Meuleman N, Mineur P, Firescu R, Maerevoet M, De Wilde V, Efira A, Philippé J, Verhasselt B, Offner F, Sims D, Heger A, Dreau H, Schuh A. The Light Chain IgLV3-21 Defines a New Poor Prognostic Subgroup in Chronic Lymphocytic Leukemia: Results of a Multicenter Study. Clin Cancer Res 2018; 24:5048-5057. [PMID: 29945996 DOI: 10.1158/1078-0432.ccr-18-0133] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/07/2018] [Accepted: 06/22/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Unmutated (UM) immunoglobulin heavy chain variable region (IgHV) status or IgHV3-21 gene usage is associated with poor prognosis in chronic lymphocytic leukemia (CLL) patients. Interestingly, IgHV3-21 is often co-expressed with light chain IgLV3-21, which is potentially able to trigger cell-autonomous BCR-mediated signaling. However, this light chain has never been characterized independently of the heavy chain IgHV3-21.Experimental Design: We performed total RNA sequencing in 32 patients and investigated IgLV3-21 prognostic impact in terms of treatment-free survival (TFS) and overall survival (OS) in 3 other independent cohorts for a total of 813 patients. IgLV3-21 presence was tested by real-time PCR and confirmed by Sanger sequencing.Results: Using total RNA sequencing to characterize 32 patients with high-risk CLL, we found a high frequency (28%) of IgLV3-21 rearrangements. Gene set enrichment analysis revealed that these patients express higher levels of genes responsible for ribosome biogenesis and translation initiation (P < 0.0001) as well as MYC target genes (P = 0.0003). Patients with IgLV3-21 rearrangements displayed a significantly shorter TFS and OS (P < 0.05), particularly those with IgHV mutation. In each of the three independent validation cohorts, we showed that IgLV3-21 rearrangements-similar to UM IgHV status-conferred poor prognosis compared with mutated IgHV (P < 0.0001). Importantly, we confirmed by multivariate analysis that this was independent of IgHV mutational status or subset #2 stereotyped receptor (P < 0.0001).Conclusions: We have demonstrated for the first time that a light chain can affect CLL prognosis and that IgLV3-21 light chain usage defines a new subgroup of CLL patients with poor prognosis. Clin Cancer Res; 24(20); 5048-57. ©2018 AACR.
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Affiliation(s)
- Basile Stamatopoulos
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, ULB-Research Cancer Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium. .,Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Nuffield Department of Laboratory Sciences, University of Oxford, Oxford, United Kingdom
| | - Thomas Smith
- Computational Genomics Analysis and Training Program, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Emerence Crompot
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, ULB-Research Cancer Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Karlien Pieters
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, ULB-Research Cancer Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Ruth Clifford
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Nuffield Department of Laboratory Sciences, University of Oxford, Oxford, United Kingdom
| | - Marek Mraz
- Department of Internal Medicine, Hematology and Oncology, University Hospital Brno, Brno, Czech Republic.,Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Pauline Robbe
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Nuffield Department of Laboratory Sciences, University of Oxford, Oxford, United Kingdom
| | - Adam Burns
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Adele Timbs
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - David Bruce
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Peter Hillmen
- St. James' Institute of Oncology, St James' University Hospital, Leeds, United Kingdom
| | | | - Philippe Mineur
- Department of Hemato-Oncology, Grand Hôpital de Charleroi, Charleroi, Belgium
| | - Radu Firescu
- Hematology Department, CHU Ambroise Paré, Mons, Belgium
| | - Marie Maerevoet
- Hematology Department, Jules Bordet Institute, Brussels, Belgium.,Hematology Department, Hôpital Erasme (ULB), Brussels, Belgium
| | | | - André Efira
- Department of Hemato-oncology, Centre Hospitalier Universitaire Brugmann, Brussels, Belgium
| | - Jan Philippé
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Bruno Verhasselt
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Fritz Offner
- Department of Internal Medicine, Hematology, Ghent University Hospital, Ghent, Belgium
| | - David Sims
- Computational Genomics Analysis and Training Program, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Andreas Heger
- Computational Genomics Analysis and Training Program, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Hélène Dreau
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom
| | - Anna Schuh
- Molecular Diagnostic Centre, Oxford University Hospitals, Oxford, United Kingdom.,Department of Oncology, University of Oxford, Oxford, United Kingdom
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146
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Andersen BL, Goyal NG, Weiss DM, Westbrook TD, Maddocks KJ, Byrd JC, Johnson AJ. Cells, cytokines, chemokines, and cancer stress: A biobehavioral study of patients with chronic lymphocytic leukemia. Cancer 2018; 124:3240-3248. [PMID: 29757455 DOI: 10.1002/cncr.31538] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 03/21/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chronic lymphocytic leukemia (CLL) is the most prevalent adult leukemia, with profound disease-related cellular, humoral, and innate immune suppression. The objective of this study was to study the correlations between stress and disease-specific, negative prognostic cellular, cytokine, and chemokine markers in patients with CLL. METHODS A single-group, observational design was used. Patients with relapsed/refractory CLL (N = 96) who were entering a phase 2 trial of an experimental therapy (ibrutinib) were studied. Before the first dose, a validated self-report measure of stress (the Impact of Event Scale) was completed, and blood was drawn for absolute lymphocyte counts (ALCs) and for cytokine and chemokine enzyme-linked immunosorbent assays. Multiple linear regression models tested stress as a concurrent predictor of ALCs; of cytokines (tumor necrosis factor α [TNFα], a proliferation-inducing ligand [APRIL], B-cell activating factor [BAFF], interleukin 6 [IL-6], IL-10, IL-16, and vascular endothelial growth factor [VEGF]); and of the chemokine (C-C motif) ligand 3 (CCL3). RESULTS Controlling for relevant demographic variables, comorbidities, CLL genetic risk (deletion of the short arm of chromosome 17 [del17p]), and correlates of inflammation, stress predicted higher ALCs (P < .05), and higher levels of TNFα (P < .05), IL-16 (P < .01), and CCL3 (P < .05). Stress was not associated with APRIL, BAFF, IL-6, IL-10, or VEGF. CONCLUSIONS Novel biobehavioral data from patients with relapsed/refractory CLL demonstrate that stress is related to heightened levels of cellular, cytokine, and chemokine markers associated previously with progressive disease in CLL. The current results indicate that stress is related to immune and inflammatory processes that contribute to cancer cell proliferation and survival. These data provide a first look into these processes. Cancer 2018. © 2018 American Cancer Society.
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Affiliation(s)
| | | | - David M Weiss
- Department of Psychology, The Ohio State University, Columbus, Ohio
| | | | - Kami J Maddocks
- The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - John C Byrd
- The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Amy J Johnson
- The Ohio State University Wexner Medical Center, Columbus, Ohio
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147
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Idelalisib in Combination With Rituximab or Bendamustine or Both in Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia. Hemasphere 2018; 2:e39. [PMID: 31723767 PMCID: PMC6745995 DOI: 10.1097/hs9.0000000000000039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Phosphatidylinositol 3-kinase-delta (PI3Kδ) signaling is critical for proliferation, survival, homing, and tissue retention of malignant B cells. Idelalisib, a selective oral inhibitor of PI3Kδ, has shown considerable single-agent activity in patients with heavily pretreated chronic lymphocytic leukemia (CLL). This study evaluated the safety and clinical activity of idelalisib in combination with bendamustine (IB) or rituximab (IR) or both (IBR) in patients with relapsed or refractory (R/R) CLL. Idelalisib was given continuously at 100 or 150 mg twice daily in combination with rituximab (375 mg/m2 weekly × 8 doses), bendamustine (70 or 90 mg/m2, days 1 and 2 every 4 weeks × 6 cycles) or BR (rituximab, 375 mg/m2 every 4 weeks and bendamustine, 70 mg/m2, days 1 and 2 every 4 weeks × 6 cycles). The primary endpoint was safety; secondary endpoints included overall response rate (ORR), duration of response (DOR), and progression-free survival (PFS). Fifty-two patients (median age 64 years) with a median of 3 prior therapies were enrolled. ORR was 84.6% (89.5% IR group, 77.8% IB group, and 86.7% IBR group). The overall median PFS was 25.6 months, and median DOR was 26.6 months. The most common grade ≥3 adverse events (≥10% of patients) were pneumonia (19.2%), diarrhea (13.5%), and febrile neutropenia (17.3%). Idelalisib-based combination therapy with bendamustine and/or rituximab was highly active, resulting in durable tumor control in patients with heavily pretreated R/R CLL. However, its tolerability profile suggests that these regimens should be used cautiously in this patient population. ClinicalTrials.gov ID: NCT01088048.
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148
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Novel role of prostate apoptosis response-4 tumor suppressor in B-cell chronic lymphocytic leukemia. Blood 2018; 131:2943-2954. [PMID: 29695515 DOI: 10.1182/blood-2017-10-813931] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 04/08/2018] [Indexed: 01/04/2023] Open
Abstract
Prostate apoptosis response-4 (Par-4), a proapoptotic tumor suppressor protein, is downregulated in many cancers including renal cell carcinoma, glioblastoma, endometrial, and breast cancer. Par-4 induces apoptosis selectively in various types of cancer cells but not normal cells. We found that chronic lymphocytic leukemia (CLL) cells from human patients and from Eµ-Tcl1 mice constitutively express Par-4 in greater amounts than normal B-1 or B-2 cells. Interestingly, knockdown of Par-4 in human CLL-derived Mec-1 cells results in a robust increase in p21/WAF1 expression and decreased growth due to delayed G1-to-S cell-cycle transition. Lack of Par-4 also increased the expression of p21 and delayed CLL growth in Eμ-Tcl1 mice. Par-4 expression in CLL cells required constitutively active B-cell receptor (BCR) signaling, as inhibition of BCR signaling with US Food and Drug Administration (FDA)-approved drugs caused a decrease in Par-4 messenger RNA and protein, and an increase in apoptosis. In particular, activities of Lyn, a Src family kinase, spleen tyrosine kinase, and Bruton tyrosine kinase are required for Par-4 expression in CLL cells, suggesting a novel regulation of Par-4 through BCR signaling. Together, these results suggest that Par-4 may play a novel progrowth rather than proapoptotic role in CLL and could be targeted to enhance the therapeutic effects of BCR-signaling inhibitors.
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149
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Abstract
PURPOSE REVIEW B cell signaling agents, including ibrutinib, idelalisib, and the BCL-2 inhibitor venetoclax have become an integral part of therapy for patients with non-Hodgkin's lymphomas. The toxicity profiles of these medications is distinct from chemoimmunotherapy. Here, we will review the mechanism of action of these drugs, their efficacy, and toxicity management. RECENT FINDINGS Ibrutinib use is associated with increased risk of atrial fibrillation and bleeding which can be managed using dose interruptions and modifications. Patients on idelalisib require close clinical and frequent laboratory monitoring, particularly of liver function tests to ensure there are no serious adverse events. Monitoring for infections is important in patients on both idelalisib and ibrutinib. Venetoclax requires close clinical and laboratory monitoring to prevent significant tumor lysis. Targeted B cell receptor therapies each have unique side effect profiles which require careful clinical monitoring. As we continue to use these therapies, optimal management strategies will continue to be elucidated.
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150
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Transformation of chronic lymphocytic leukemia into B-cell acute lymphoblastic leukemia. Blood 2018; 131:1258-1261. [DOI: 10.1182/blood-2017-11-819276] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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