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Dasanu CA, Mann SK, Baidya M, Mdluli XP, Stapleton AE, Codreanu I. Evaluation of infectious morbidity due to BTK inhibitors in indolent B-cell lymphomas: latest research findings and systematic analysis. Expert Opin Pharmacother 2024; 25:1525-1540. [PMID: 39109526 DOI: 10.1080/14656566.2024.2390121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/05/2024] [Indexed: 08/28/2024]
Abstract
INTRODUCTION Randomized clinical trials (RCTs) have suggested that BTK inhibitors (BTKis) might increase infectious disease (ID) risk. Systematic analysis of this topic as derived from RCTs and clinical practice is needed. AREAS COVERED An extensive Medline, Embase, and Cochrane search of peer-reviewed sources reporting on ID morbidity in patients on BTKis was performed (1 January 2014 - 31 December 2013). Contribution of intrinsic immune defects in indolent B-cell lymphomas to this morbidity was carefully considered. EXPERT OPINION Patients with indolent B-cell lymphomas display a wide range of innate and adaptive immune defects. In addition, BTKi use is linked with an increased signal of upper respiratory tract infections (URTIs) and pneumonias, mainly grade 1-2. These agents also increase the risk of rare invasive fungal infections (IFIs), mainly due to Cryptococcus and Aspergillus spp. with a peak within several months after the start of therapy. More than half of these IFIs are fatal. Research suggests a similar ID risk across 1st, 2nd and 3rd generations of BTKis, all causing B-cell dysfunction due to BTK inhibition, along with off-target functional neutrophil/macrophage alterations. Expanding the knowledge base on ID morbidity in patients on BTKis would facilitate timely diagnosis and treatment, and improve clinical outcomes.
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Affiliation(s)
- Constantin A Dasanu
- Lucy Curci Cancer Center, Eisenhower Health, Rancho Mirage, CA, USA
- Department of Medical Oncology and Hematology, UC San Diego Health System, San Diego, CA, USA
| | - Samar K Mann
- Department of Graduate Medical Education, Oakland William Beaumont School of Medicine, Rochester, MI, USA
| | - Melvin Baidya
- Lucy Curci Cancer Center, Eisenhower Health, Rancho Mirage, CA, USA
| | - Xolani P Mdluli
- Department of Infectious Diseases, Eisenhower Health, Rancho Mirage, CA, USA
| | - Ann E Stapleton
- Department of Infectious Diseases, Eisenhower Health, Rancho Mirage, CA, USA
| | - Ion Codreanu
- Translational Imaging Center, Houston Methodist Research Institute, Houston, TX, USA
- Department of Radiology, Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova
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2
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Andreescu M. Recent Advances in Serum Biomarkers for Cardiological Risk Stratification and Insight into the Cardiac Management of the Patients With Hematological Malignancies Treated With Targeted Therapy. Cureus 2023; 15:e49696. [PMID: 38033434 PMCID: PMC10688222 DOI: 10.7759/cureus.49696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2023] [Indexed: 12/02/2023] Open
Abstract
Cardiovascular diseases (CVD) have emerged as a common and serious complication of cancer treatment, particularly in patients undergoing cardiotoxic therapies. Over the last few years, the medical community has become increasingly aware of the potential for cardiotoxicity resulting from cancer treatments involving chemotherapy, targeted therapies, and radiation therapy. This recognition is due to the significant risk of morbidity and mortality in cancer patients and survivors resulting from such treatment-induced cardiovascular damage. While the cardiotoxic effects of chemotherapy and targeted therapy have been discussed in medical literature, only a limited number of studies have explored the role of serum biomarkers in cardiological risk stratification. In recent years, serum biomarkers have emerged as a valuable tool for assessing and managing cardiotoxicity in patients with hematological malignancies. This review article provides a summary of the current state of knowledge on the usefulness of biomarkers in managing cardiotoxicity resulting from different targeted therapies throughout the cancer care continuum. Although cardiac biomarkers have demonstrated potential in identifying subclinical cardiotoxicity and tracking the response to cardioprotective treatments, further research is necessary to determine optimal biomarkers and surveillance strategies. The incorporation of cardiac biomarkers into clinical practice in patients undergoing targeted therapies could potentially lead to improved long-term cardiovascular outcomes in cancer patients and survivors.
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Affiliation(s)
- Mihaela Andreescu
- Department of Hematology, Colentina Clinical Hospital, Bucharest, ROU
- Department of Clinical Sciences, Hematology, Faculty of Medicine, Titu Maiorescu University of Bucharest, Bucharest, ROU
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3
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Tam CS, Muñoz JL, Seymour JF, Opat S. Zanubrutinib: past, present, and future. Blood Cancer J 2023; 13:141. [PMID: 37696810 PMCID: PMC10495438 DOI: 10.1038/s41408-023-00902-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/01/2023] [Accepted: 08/14/2023] [Indexed: 09/13/2023] Open
Abstract
In recent years, Bruton tyrosine kinase (BTK) inhibitors have provided significant advances in the treatment of patients with B-cell malignancies. Ibrutinib was the first BTK inhibitor to be approved, and it changed the standard-of-care treatment for diseases such as chronic lymphocytic leukemia, mantle cell lymphoma, marginal zone lymphoma, and Waldenström macroglobulinemia, improving efficacy outcomes and safety compared to chemotherapy. In this article, we review the development of zanubrutinib, a next-generation BTK inhibitor, from molecular design to patient-related outcomes. We start this journey by providing insights into the discovery of BTK and the physiologic, genetic, and molecular characterization of patients lacking this kinase, together with the brief treatment landscape in the era of chemo-immunotherapies. Zanubrutinib was originally developed by applying a structure-activity strategy to enhance the specificity as well as enzymatic and pharmacokinetic properties. Preclinical studies confirmed greater specificity and better bioavailability of zanubrutinib compared with that of ibrutinib, which supported the initiation of clinical trials in humans. Preliminary clinical results indicated activity in B-cell malignancies together with an improved safety profile, in line with less off-target effects described in the preclinical studies. The clinical program of zanubrutinib has since expanded significantly, with ongoing studies in a wide range of hemato-oncological diseases and in combination with many other therapies. Zanubrutinib currently is approved for various B-cell malignancies in multiple countries. This story highlights the importance of multidisciplinary collaborative research, from bench to bedside, and provides an example of how the commitment to finding improved treatment options should always run parallel to patient care.
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Affiliation(s)
| | | | - John F Seymour
- Peter MacCallum Cancer Centre, Royal Melbourne Hospital & University of Melbourne, Melbourne, VIC, Australia
| | - Stephen Opat
- Monash Health and Monash University, Clayton, VIC, Australia
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Shyam Sunder S, Sharma UC, Pokharel S. Adverse effects of tyrosine kinase inhibitors in cancer therapy: pathophysiology, mechanisms and clinical management. Signal Transduct Target Ther 2023; 8:262. [PMID: 37414756 PMCID: PMC10326056 DOI: 10.1038/s41392-023-01469-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/06/2023] [Accepted: 04/23/2023] [Indexed: 07/08/2023] Open
Abstract
Since their invention in the early 2000s, tyrosine kinase inhibitors (TKIs) have gained prominence as the most effective pathway-directed anti-cancer agents. TKIs have shown significant utility in the treatment of multiple hematological malignancies and solid tumors, including chronic myelogenous leukemia, non-small cell lung cancers, gastrointestinal stromal tumors, and HER2-positive breast cancers. Given their widespread applications, an increasing frequency of TKI-induced adverse effects has been reported. Although TKIs are known to affect multiple organs in the body including the lungs, liver, gastrointestinal tract, kidneys, thyroid, blood, and skin, cardiac involvement accounts for some of the most serious complications. The most frequently reported cardiovascular side effects range from hypertension, atrial fibrillation, reduced cardiac function, and heart failure to sudden death. The potential mechanisms of these side effects are unclear, leading to critical knowledge gaps in the development of effective therapy and treatment guidelines. There are limited data to infer the best clinical approaches for the early detection and therapeutic modulation of TKI-induced side effects, and universal consensus regarding various management guidelines is yet to be reached. In this state-of-the-art review, we examine multiple pre-clinical and clinical studies and curate evidence on the pathophysiology, mechanisms, and clinical management of these adverse reactions. We expect that this review will provide researchers and allied healthcare providers with the most up-to-date information on the pathophysiology, natural history, risk stratification, and management of emerging TKI-induced side effects in cancer patients.
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Affiliation(s)
- Sunitha Shyam Sunder
- Cardio-Oncology Research Group, Department of Pathology and Laboratory Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Umesh C Sharma
- Division of Cardiovascular Medicine, Jacob's School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Saraswati Pokharel
- Cardio-Oncology Research Group, Department of Pathology and Laboratory Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
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5
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Gargiulo E, Ribeiro EFO, Niemann CU. SOHO State of the Art Updates and Next Questions | Infections in Chronic Lymphocytic Leukemia Patients: Risks and Management. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:322-332. [PMID: 36868914 DOI: 10.1016/j.clml.2023.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 02/12/2023]
Abstract
Although chronic lymphocytic leukemia (CLL) is a malignancy characterized by accumulation of tumor cells in the blood, bone marrow, lymph nodes and secondary lymphoid tissues, the hallmark of the disease and the major cause of death for patients with CLL is actually immune dysfunction and associated infections. Despite improvement in treatment based on combination chemoimmunotherapy and targeted treatment with BTK and BCL-2 inhibitors leading to longer overall survival for patients with CLL, the mortality due to infections have not improved over the last 4 decades. Thus, infections are now the main cause of death for patients with CLL, posing threats to the patient whether during the premalignant state of monoclonal B lymphocytosis (MBL), during the watch & wait phase for treatment naïve patients, or upon treatment in terms of chemoimmunotherapy or targeted treatment. To test whether the natural history of immune dysfunction and infections in CLL can be changed, we have developed the machine learning based algorithm CLL-TIM.org to identify these patients. The CLL-TIM algorithm is currently being used for selection of patients for the clinical trial PreVent-ACaLL (NCT03868722), testing whether short-term treatment with the BTK inhibitor acalabrutinib and the BCL-2 inhibitor venetoclax can improve immune function and decrease the risk of infections for this high-risk patient population. We here review the background for and management of infectious risks in CLL.
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Affiliation(s)
- Ernesto Gargiulo
- Tumor-Stroma Interactions, Department of Oncology, Luxembourg Institute of Health, Luxembourg City, Luxembourg; Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; PERSIMUNE, Department of Infectious Diseases, Rigshospitalet, Copenhagen, Denmark
| | | | - Carsten U Niemann
- Department of Hematology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Center of Oncology and Hematology, Hospital Santa Lúcia Sul, Brasilia, Brazil; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
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6
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Borgström EW, Edvinsson M, Pérez LP, Norlin AC, Enoksson SL, Hansen S, Fasth A, Friman V, Kämpe O, Månsson R, Estupiñán HY, Wang Q, Ziyang T, Lakshmikanth T, Smith CIE, Brodin P, Bergman P. Three Adult Cases of STAT1 Gain-of-Function with Chronic Mucocutaneous Candidiasis Treated with JAK Inhibitors. J Clin Immunol 2023; 43:136-150. [PMID: 36050429 PMCID: PMC9840596 DOI: 10.1007/s10875-022-01351-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 08/08/2022] [Indexed: 01/21/2023]
Abstract
PURPOSE The aim of this study was to characterize clinical effects and biomarkers in three patients with chronic mucocutaneous candidiasis (CMC) caused by gain-of-function (GOF) mutations in the STAT1 gene during treatment with Janus kinase (JAK) inhibitors. METHODS Mass cytometry (CyTOF) was used to characterize mononuclear leukocyte populations and Olink assay to quantify 265 plasma proteins. Flow-cytometric Assay for Specific Cell-mediated Immune-response in Activated whole blood (FASCIA) was used to quantify the reactivity against Candida albicans. RESULTS Overall, JAK inhibitors improved clinical symptoms of CMC, but caused side effects in two patients. Absolute numbers of neutrophils, T cells, B cells, and NK cells were sustained during baricitinib treatment. Detailed analysis of cellular subsets, using CyTOF, revealed increased expression of CD45, CD52, and CD99 in NK cells, reflecting a more functional phenotype. Conversely, monocytes and eosinophils downregulated CD16, consistent with reduced inflammation. Moreover, T and B cells showed increased expression of activation markers during treatment. In one patient with a remarkable clinical effect of baricitinib treatment, the immune response to C. albicans increased after 7 weeks of treatment. Alterations in plasma biomarkers involved downregulation of cellular markers CXCL10, annexin A1, granzyme B, granzyme H, and oncostatin M, whereas FGF21 was the only upregulated marker after 7 weeks. After 3 months, IFN-ɣ and CXCL10 were downregulated. CONCLUSIONS The clinical effect of JAK inhibitor treatment of CMC is promising. Several biological variables were altered during baricitinib treatment demonstrating that lymphocytes, NK cells, monocytes, and eosinophils were affected. In parallel, cellular reactivity against C. albicans was enhanced.
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Affiliation(s)
- Emilie W. Borgström
- Department of Laboratory Medicine, Clinical Microbiology, Stockholm, Sweden ,grid.24381.3c0000 0000 9241 5705Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Marie Edvinsson
- grid.412354.50000 0001 2351 3333Department of Medical Sciences, Section of Infectious Diseases, Uppsala University Hospital, Uppsala, Sweden
| | - Lucía P. Pérez
- grid.4714.60000 0004 1937 0626Department of Laboratory Medicine, Biomolecular and Cellular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anna C. Norlin
- grid.24381.3c0000 0000 9241 5705Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden ,grid.24381.3c0000 0000 9241 5705Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Sara L. Enoksson
- grid.24381.3c0000 0000 9241 5705Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Susanne Hansen
- grid.24381.3c0000 0000 9241 5705Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Anders Fasth
- grid.8761.80000 0000 9919 9582Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Vanda Friman
- grid.8761.80000 0000 9919 9582Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Olle Kämpe
- grid.4714.60000 0004 1937 0626Experimental Endocrinology, Department of Medicine, Karolinska Institutet, Solna, Stockholm, Sweden
| | - Robert Månsson
- grid.4714.60000 0004 1937 0626Department of Laboratory Medicine, Biomolecular and Cellular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Hernando Y. Estupiñán
- grid.4714.60000 0004 1937 0626Department of Laboratory Medicine, Biomolecular and Cellular Medicine, Karolinska Institutet, Stockholm, Sweden ,grid.411595.d0000 0001 2105 7207Departamento de Ciencias Básicas, Universidad Industrial de Santander, 680002 Bucaramanga, Colombia
| | - Qing Wang
- grid.4714.60000 0004 1937 0626Department of Laboratory Medicine, Biomolecular and Cellular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tan Ziyang
- grid.4714.60000 0004 1937 0626Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
| | - Tadepally Lakshmikanth
- grid.4714.60000 0004 1937 0626Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
| | - Carl Inge E. Smith
- grid.24381.3c0000 0000 9241 5705Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden ,Department of Laboratory Medicine, Translational Research Center Karolinska (TRACK), Stockholm, Sweden
| | - Petter Brodin
- grid.4714.60000 0004 1937 0626Science for Life Laboratory, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden ,grid.7445.20000 0001 2113 8111Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Peter Bergman
- Department of Laboratory Medicine, Clinical Microbiology, Stockholm, Sweden ,grid.24381.3c0000 0000 9241 5705Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
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Wang H, Guo H, Yang J, Liu Y, Liu X, Zhang Q, Zhou K. Bruton tyrosine kinase inhibitors in B-cell lymphoma: beyond the antitumour effect. Exp Hematol Oncol 2022; 11:60. [PMID: 36138486 PMCID: PMC9493169 DOI: 10.1186/s40164-022-00315-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/11/2022] [Indexed: 01/08/2023] Open
Abstract
Targeting B-cell receptor signalling using Bruton tyrosine kinase (BTK) inhibitors (BTKis) has become a highly successful treatment modality for B-cell malignancies, especially for chronic lymphocytic leukaemia. However, long-term administration of BTKis can be complicated by adverse on- and/or off-target effects in particular cell types. BTK is widely expressed in cells of haematopoietic origin, which are pivotal components of the tumour microenvironment. BTKis, thus, show broad immunomodulatory effects on various non-B immune cell subsets by inhibiting specific immune receptors, including T-cell receptor and Toll-like receptors. Furthermore, due to the off-target inhibition of other kinases, such as IL-2-inducible T-cell kinase, epidermal growth factor receptor, and the TEC and SRC family kinases, BTKis have additional distinct effects on T cells, natural killer cells, platelets, cardiomyocytes, and other cell types. Such mechanisms of action might contribute to the exceptionally high clinical efficacy as well as the unique profiles of adverse effects, including infections, bleeding, and atrial fibrillation, observed during BTKi administration. However, the immune defects and related infections caused by BTKis have not received sufficient attention in clinical studies till date. The broad involvement of BTK in immunological pathways provides a rationale to combine BTKis with specific immunotherapies, such as immune checkpoint inhibitor or chimeric antigen receptor-T-cell therapy, for the treatment of relapsed or refractory diseases. This review discusses and summarises the above-mentioned issues as a reference for clinicians and researchers.
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Affiliation(s)
- Haoran Wang
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Hao Guo
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Jingyi Yang
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Yanyan Liu
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Xingchen Liu
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Qing Zhang
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China
| | - Keshu Zhou
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, 450003, China.
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8
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Liu Y, Song Y, Yin Q. Effects of ibrutinib on T-cell immunity in patients with chronic lymphocytic leukemia. Front Immunol 2022; 13:962552. [PMID: 36059445 PMCID: PMC9437578 DOI: 10.3389/fimmu.2022.962552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/28/2022] [Indexed: 12/15/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL), a highly heterogeneous B-cell malignancy, is characterized by tumor microenvironment disorder and T-cell immune dysfunction, which play a major role in the proliferation and survival of CLL cells. Ibrutinib is the first irreversible inhibitor of Bruton’s tyrosine kinase (BTK). In addition to targeting B-cell receptor (BCR) signaling to kill tumor cells, increasing evidence has suggested that ibrutinib regulates the tumor microenvironment and T-cell immunity in a direct and indirect manner. For example, ibrutinib not only reverses the tumor microenvironment by blocking cytokine networks and toll-like receptor signaling but also regulates T cells in number, subset distribution, T-cell receptor (TCR) repertoire and immune function by inhibiting interleukin-2 inducible T-cell kinase (ITK) and reducing the expression of inhibitory receptors, and so on. In this review, we summarize the current evidence for the effects of ibrutinib on the tumor microenvironment and cellular immunity of patients with CLL, particularly for the behavior and function of T cells, explore its potential mechanisms, and provide a basis for the clinical benefits of long-term ibrutinib treatment and combined therapy based on T-cell-based immunotherapies.
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9
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Rivera D, Ferrajoli A. Managing the Risk of Infection in Chronic Lymphocytic Leukemia in the Era of New Therapies. Curr Oncol Rep 2022; 24:1003-1014. [PMID: 35366167 PMCID: PMC8976213 DOI: 10.1007/s11912-022-01261-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE OF REVIEW Patients diagnosed with CLL have an increased susceptibility to infections. Over the years, there has been a shift of the treatment arsenal to an increasing use of chemotherapy-free regimens, particularly small molecule inhibitors. These therapies have proven to be effective and have a favorable toxicity profile. Infections continue to represent a significant complication in the era of novel therapies. RECENT FINDINGS Recent studies continue to bring new insights into the effects of modern therapies on the immune system. Evidence supporting infection prevention strategies is scarce. We will review the available recommendations to prevent infections in patients with CLL treated with novel therapies. New CLL therapies are broadly adopted in routine practice, requiring optimization of their side effects. Timely prevention, recognition, and treatment of infections should remain an important aspect of the standard management of a patient with CLL.
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Affiliation(s)
- Daniel Rivera
- Department of Leukemia, The University of Texas-MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0428, Houston, TX, 77030, USA
| | - Alessandra Ferrajoli
- Department of Leukemia, The University of Texas-MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 0428, Houston, TX, 77030, USA.
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10
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Smith CIE, Zain R, Österborg A, Palma M, Buggert M, Bergman P, Bryceson Y. Do reduced numbers of plasmacytoid dendritic cells contribute to the aggressive clinical course of COVID-19 in chronic lymphocytic leukemia? Scand J Immunol 2022; 95:e13153. [PMID: 35244285 PMCID: PMC9115357 DOI: 10.1111/sji.13153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/22/2022] [Accepted: 02/22/2022] [Indexed: 11/28/2022]
Abstract
Infections with SARS‐CoV‐2 have been unduly severe in patients with haematological malignancies, in particular in those with chronic lymphocytic leukaemia (CLL). Based on a series of observations, we propose that an underlying mechanism for the aggressive clinical course of COVID‐19 in CLL is a paucity of plasmacytoid dendritic cells (pDCs) in these patients. Indeed, pDCs express Toll‐like receptor 7 (TLR7), which together with interferon‐regulatory factor 7 (IRF7), enables pDCs to produce large amounts of type I interferons, essential for combating COVID‐19. Treatment of CLL with Bruton's tyrosine kinase (BTK) inhibitors increased the number of pDCs, likely secondarily to the reduction in the tumour burden.
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Affiliation(s)
- C I Edvard Smith
- Department of Laboratory Medicine, Translational Research Center Karolinska (TRACK), Karolinska Institutet, Stockholm, Sweden.,Department of Infectious Diseases, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Rula Zain
- Department of Laboratory Medicine, Translational Research Center Karolinska (TRACK), Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Center for Rare Diseases, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Anders Österborg
- Dept of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden.,Dept of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Marzia Palma
- Dept of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden.,Dept of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Marcus Buggert
- Department of Medicine Huddinge, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Peter Bergman
- Department of Infectious Diseases, Karolinska University Hospital Huddinge, Stockholm, Sweden.,Department of Laboratory Medicine, Clinical Microbiology, Karolinska Institutet, Stockholm, Sweden
| | - Yenan Bryceson
- Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Broegelmann Laboratory, Department of Clinical Sciences, University of Bergen, Bergen, Norway
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11
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Blixt L, Bogdanovic G, Buggert M, Gao Y, Hober S, Healy K, Johansson H, Kjellander C, Mravinacova S, Muschiol S, Nilsson P, Palma M, Pin E, Smith CIE, Stromberg O, Sällberg Chen M, Zain R, Hansson L, Österborg A. Covid-19 in patients with chronic lymphocytic leukemia: clinical outcome and B- and T-cell immunity during 13 months in consecutive patients. Leukemia 2022; 36:476-481. [PMID: 34564699 PMCID: PMC8475381 DOI: 10.1038/s41375-021-01424-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/08/2021] [Accepted: 09/13/2021] [Indexed: 01/01/2023]
Abstract
We studied clinical and immunological outcome of Covid-19 in consecutive CLL patients from a well-defined area during month 1-13 of the pandemic. Sixty patients (median age 71 y, range 43-97) were identified. Median CIRS was eight (4-20). Patients had indolent CLL (n = 38), had completed (n = 12) or ongoing therapy (n = 10). Forty-six patients (77%) were hospitalized due to severe Covid-19 and 11 were admitted to ICU. Severe Covid-19 was equally distributed across subgroups irrespective of age, gender, BMI, CLL status except CIRS (p < 0.05). Fourteen patients (23%) died; age ≥75 y was the only significant risk factor (p < 0.05, multivariate analysis with limited power). Comparing month 1-6 vs 7-13 of the pandemic, deaths were numerically reduced from 32% to 18%, ICU admission from 37% to 15% whereas hospitalizations remained frequent (86% vs 71%). Seroconversion occurred in 33/40 patients (82%) and anti-SARS-CoV-2 antibodies were detectable at six and 12 months in 17/22 and 8/11 patients, respectively. Most (13/17) had neutralizing antibodies and 19/28 had antibodies in saliva. SARS-CoV-2-specific T-cells (ELISpot) were detected in 14/17 patients. Covid-19 continued to result in high admission even among consecutive and young early- stage CLL patients. A robust and durable B and/or T cell immunity was observed in most convalescents.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antibodies, Neutralizing/blood
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- B-Lymphocytes/immunology
- COVID-19/complications
- COVID-19/immunology
- COVID-19/transmission
- COVID-19/virology
- Combined Modality Therapy
- Female
- Follow-Up Studies
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/virology
- Male
- Middle Aged
- Prognosis
- SARS-CoV-2/immunology
- SARS-CoV-2/isolation & purification
- T-Lymphocytes/immunology
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Affiliation(s)
- Lisa Blixt
- Department of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Gordana Bogdanovic
- Department of Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Marcus Buggert
- Center for Infectious Medicine, Dept of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Yu Gao
- Center for Infectious Medicine, Dept of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Sophia Hober
- Department of Protein Science, SciLifeLab and KTH Royal Institute of Technology, Stockholm, Sweden
| | - Katie Healy
- Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Hemming Johansson
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | | | - Sara Mravinacova
- Department of Protein Science, SciLifeLab and KTH Royal Institute of Technology, Stockholm, Sweden
| | - Sandra Muschiol
- Department of Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Peter Nilsson
- Department of Protein Science, SciLifeLab and KTH Royal Institute of Technology, Stockholm, Sweden
| | - Marzia Palma
- Department of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Elisa Pin
- Department of Protein Science, SciLifeLab and KTH Royal Institute of Technology, Stockholm, Sweden
| | - C I Edvard Smith
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Olga Stromberg
- Department of Internal Medicine, Södersjukhuset, Stockholm, Sweden
| | | | - Rula Zain
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Rare Diseases, Department of Clinical Genetics, Karolinska University, Hospital, Stockholm, Sweden
| | - Lotta Hansson
- Department of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden.
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.
| | - Anders Österborg
- Department of Hematology, Karolinska University Hospital Solna, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
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12
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Broccoli A, Argnani L, Morigi A, Nanni L, Casadei B, Pellegrini C, Stefoni V, Zinzani PL. Long-Term Efficacy and Safety of Ibrutinib in the Treatment of CLL Patients: A Real Life Experience. J Clin Med 2021; 10:jcm10245845. [PMID: 34945141 PMCID: PMC8706288 DOI: 10.3390/jcm10245845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 12/20/2022] Open
Abstract
Ibrutinib has demonstrated a significant clinical impact in patients with de novo and relapsed/refractory chronic lymphocytic leukemia (CLL), even in cases with unfavorable cytogenetics and molecular markers. All CLL patients’ data treated at our Institute with ibrutinib have been retrospectively reviewed. Forty-six patients received ibrutinib either as frontline (10) or second or more advanced treatment (36). Five patients presented with TP53 mutations; 11 had the deletion of chromosome 17p; 17 displayed an unmutated immunoglobulin variable heavy chain status. The median number of cycles administered was 26. Among patients treated frontline, the best overall response rate (ORR) was 90.0%. In patients receiving ibrutinib as a second or later line ORR was 97.2%. Median progression-free survival was 28.8 and 21.1 months for patients treated frontline and as second/later line, respectively. Median overall survival was not reached for those treated frontline and resulted in 4.9 years for patients treated as second/later line. Grade 3–4 hematological toxicities were neutropenia, thrombocytopenia, and anemia. Grade 3–4 extrahematological toxicities included diarrhea, cutaneous rash, utero-vesical prolapse, vasculitis, and sepsis. Ibrutinib is effective and well tolerated in CLL. Responses obtained in a real-life setting are durable and the safety profile of the drug is favorable.
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Affiliation(s)
- Alessandro Broccoli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Lisa Argnani
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Alice Morigi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Laura Nanni
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Beatrice Casadei
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Cinzia Pellegrini
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
| | - Vittorio Stefoni
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
| | - Pier Luigi Zinzani
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, 40138 Bologna, Italy; (A.B.); (A.M.); (L.N.); (B.C.); (C.P.); (V.S.)
- Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, 40138 Bologna, Italy;
- Correspondence:
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13
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Cheng M, Yang F, Liu J, Yang D, Zhang S, Yu Y, Jiang S, Dong M. Tyrosine Kinase Inhibitors-Induced Arrhythmias: From Molecular Mechanisms, Pharmacokinetics to Therapeutic Strategies. Front Cardiovasc Med 2021; 8:758010. [PMID: 34869670 PMCID: PMC8639698 DOI: 10.3389/fcvm.2021.758010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/25/2021] [Indexed: 12/27/2022] Open
Abstract
With the development of anti-tumor drugs, tyrosine kinase inhibitors (TKIs) are an indispensable part of targeted therapy. They can be superior to traditional chemotherapeutic drugs in selectivity, safety, and efficacy. However, they have been found to be associated with serious adverse effects in use, such as myocardial infarction, fluid retention, hypertension, and rash. Although TKIs induced arrhythmia with a lower incidence than other cardiovascular diseases, much clinical evidence indicated that adequate attention and management should be provided to patients. This review focuses on QT interval prolongation and atrial fibrillation (AF) which are conveniently monitored in clinical practice. We collected data about TKIs, and analyzed the molecule mechanism, discussed the actual clinical evidence and drug-drug interaction, and provided countermeasures to QT interval prolongation and AF. We also pooled data to show that both QT prolongation and AF are related to their multi-target effects. Furthermore, more than 30 TKIs were approved by the FDA, but most of the novel drugs had a small sample size in the preclinical trial and risk/benefit assessments were not perfect, which led to a suspension after listing, like nilotinib. Similarly, vandetanib exhibits the most significant QT prolongation and ibrutinib exhibits the highest incidence in AF, but does not receive enough attention during treatment.
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Affiliation(s)
- Mengfei Cheng
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Fang Yang
- The First Department of Respiratory Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jiahui Liu
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Dan Yang
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, China
| | - Shuo Zhang
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yang Yu
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Shuai Jiang
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Mei Dong
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
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14
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Zhu S, Jung J, Victor E, Arceo J, Gokhale S, Xie P. Clinical Trials of the BTK Inhibitors Ibrutinib and Acalabrutinib in Human Diseases Beyond B Cell Malignancies. Front Oncol 2021; 11:737943. [PMID: 34778053 PMCID: PMC8585514 DOI: 10.3389/fonc.2021.737943] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/11/2021] [Indexed: 12/13/2022] Open
Abstract
The BTK inhibitors ibrutinib and acalabrutinib are FDA-approved drugs for the treatment of B cell malignances. Both drugs have demonstrated clinical efficacy and safety profiles superior to chemoimmunotherapy regimens in patients with chronic lymphocytic leukemia. Mounting preclinical and clinical evidence indicates that both ibrutinib and acalabrutinib are versatile and have direct effects on many immune cell subsets as well as other cell types beyond B cells. The versatility and immunomodulatory effects of both drugs have been exploited to expand their therapeutic potential in a wide variety of human diseases. Over 470 clinical trials are currently registered at ClinicalTrials.gov to test the efficacy of ibrutinib or acalabrutinib not only in almost every type of B cell malignancies, but also in hematological malignancies of myeloid cells and T cells, solid tumors, chronic graft versus host disease (cGHVD), autoimmune diseases, allergy and COVID-19 (http:www.clinicaltrials.gov). In this review, we present brief discussions of the clinical trials and relevant key preclinical evidence of ibrutinib and acalabrutinib as monotherapies or as part of combination therapies for the treatment of human diseases beyond B cell malignancies. Adding to the proven efficacy of ibrutinib for cGVHD, preliminary results of clinical trials have shown promising efficacy of ibrutinib or acalabrutinib for certain T cell malignancies, allergies and severe COVID-19. However, both BTK inhibitors have no or limited efficacy for refractory or recurrent solid tumors. These clinical data together with additional pending results from ongoing trials will provide valuable information to guide the design and improvement of future trials, including optimization of combination regimens and dosing sequences as well as better patient stratification and more efficient delivery strategies. Such information will further advance the precise implementation of BTK inhibitors into the clinical toolbox for the treatment of different human diseases.
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Affiliation(s)
- Sining Zhu
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Jaeyong Jung
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Eton Victor
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Johann Arceo
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States
| | - Samantha Gokhale
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Graduate Program in Cellular and Molecular Pharmacology, Rutgers University, Piscataway, NJ, United States
| | - Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ, United States.,Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, United States
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15
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Zain R, Vihinen M. Structure-Function Relationships of Covalent and Non-Covalent BTK Inhibitors. Front Immunol 2021; 12:694853. [PMID: 34349760 PMCID: PMC8328433 DOI: 10.3389/fimmu.2021.694853] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/21/2021] [Indexed: 01/20/2023] Open
Abstract
Low-molecular weight chemical compounds have a longstanding history as drugs. Target specificity and binding efficiency represent major obstacles for small molecules to become clinically relevant. Protein kinases are attractive cellular targets; however, they are challenging because they present one of the largest protein families and share structural similarities. Bruton tyrosine kinase (BTK), a cytoplasmic protein tyrosine kinase, has received much attention as a promising target for the treatment of B-cell malignancies and more recently autoimmune and inflammatory diseases. Here we describe the structural properties and binding modes of small-molecule BTK inhibitors, including irreversible and reversible inhibitors. Covalently binding compounds, such as ibrutinib, acalabrutinib and zanubrutinib, are discussed along with non-covalent inhibitors fenebrutinib and RN486. The focus of this review is on structure-function relationships.
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Affiliation(s)
- Rula Zain
- Department of Laboratory Medicine, Clinical Research Centre, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden.,Centre for Rare Diseases, Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Mauno Vihinen
- Department of Experimental Medical Science, Lund University, Lund, Sweden
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16
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Palma M, Mulder TA, Österborg A. BTK Inhibitors in Chronic Lymphocytic Leukemia: Biological Activity and Immune Effects. Front Immunol 2021; 12:686768. [PMID: 34276674 PMCID: PMC8282344 DOI: 10.3389/fimmu.2021.686768] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 06/16/2021] [Indexed: 01/15/2023] Open
Abstract
Bruton´s tyrosine kinase (BTK) inhibitor (BTKi)s block the B-cell receptor (BCR) signaling cascade by binding to the BTK enzyme preventing the proliferation and survival of malignant and normal B cells. During the past decade, the clinical use of BTKis for the treatment of B-cell malignancies has exponentially grown, changing the treatment landscape for chronic lymphocytic leukemia (CLL) in particular. At present, three different covalent BTKis, ibrutinib, acalabrutinib and zanubrutinib, are FDA-approved and many new inhibitors are under development. Despite having remarkable selectivity for BTK, the first-in-class BTKi ibrutinib can also bind, with various affinities, to other kinases. The combined inhibition of BTK (“on-target” effect) and other kinases (“off-target” effect) can have additive or synergistic anti-tumor effects but also induce undesired side effects which might be treatment-limiting. Such “off-target” effects are expected to be more limited for second-generation BTKis. Moreover, the blockade of BCR signaling also indirectly affects the tumor microenvironment in CLL. Treatment with BTKis potentially impacts on both innate and adaptive immunity. Whether this affects infection susceptibility and vaccination efficacy requires further investigation. Here, we summarize the available knowledge on the impact of BTKis on the immune system and discuss the possible clinical implications. Indeed, a deeper knowledge on this topic could guide clinicians in the management and prevention of infections in patients with CLL treated with BTKis.
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Affiliation(s)
- Marzia Palma
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.,Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Tom A Mulder
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Anders Österborg
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.,Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
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