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Puckrin R, Shafey M, Storek J. The role of allogeneic hematopoietic cell transplantation for chronic lymphocytic leukemia: A review. Front Oncol 2023; 12:1105779. [PMID: 36741737 PMCID: PMC9889653 DOI: 10.3389/fonc.2022.1105779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 12/30/2022] [Indexed: 01/20/2023] Open
Abstract
Although the use of allogeneic hematopoietic cell transplantation (HCT) for chronic lymphocytic leukemia (CLL) has declined with the development of novel targeted agents, it continues to play an important role for eligible patients with high-risk or heavily pretreated CLL who lack other treatment options. CLL is susceptible to a potent graft-versus-leukemia (GVL) effect which produces long-lasting remissions in 30-50% of transplanted patients. While allogeneic HCT is associated with significant risks of graft-versus-host disease (GVHD), infection, and non-relapse mortality (NRM), improvements in patient and donor selection, reduced intensity conditioning (RIC), GVHD prophylaxis, and supportive care have rendered this an increasingly safe and effective procedure in the current era. In this review, we discuss recent advances in allogeneic HCT for CLL, with a focus on the optimal evidence-based strategies to maximize benefit and minimize toxicity of this potentially curative cellular therapy.
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Affiliation(s)
| | | | - Jan Storek
- Department of Hematology and Hematologic Malignancies, Tom Baker Cancer Centre and University of Calgary, Calgary, AB, Canada
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2
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Tang C, Shen Y, Soosapilla A, Mulligan SP. Monoclonal B-cell Lymphocytosis - a review of diagnostic criteria, biology, natural history, and clinical management. Leuk Lymphoma 2022; 63:2795-2806. [PMID: 35767361 DOI: 10.1080/10428194.2022.2092857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since first described almost two decades ago, there has been significant evolution in our definition and understanding of the biology and implications of monoclonal B-cell lymphocytosis (MBL). This review provides an overview of the definition, classification, biology, and natural history of MBL, mainly focused on the dominant CLL-like phenotype form of MBL. The increasingly recognized implications of MBL with respect to immune dysfunction are discussed, particularly in view of the COVID-19 pandemic, along with management recommendations for MBL in the clinic.
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Affiliation(s)
- Catherine Tang
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia.,Department of Haematology, Gosford Hospital, Gosford, Australia.,School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Yandong Shen
- Department of Haematology, Royal North Shore Hospital, St Leonards, Sydney, Australia.,Kolling Institute, University of Sydney, St Leonards, Sydney, Australia
| | - Asha Soosapilla
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia
| | - Stephen P Mulligan
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia.,Department of Haematology, Royal North Shore Hospital, St Leonards, Sydney, Australia.,Kolling Institute, University of Sydney, St Leonards, Sydney, Australia
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Williams L, Doucette K, Karp JE, Lai C. Genetics of donor cell leukemia in acute myelogenous leukemia and myelodysplastic syndrome. Bone Marrow Transplant 2021; 56:1535-1549. [PMID: 33686252 DOI: 10.1038/s41409-021-01214-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/21/2020] [Accepted: 01/07/2021] [Indexed: 01/31/2023]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is an important therapeutic modality for patients with acute myelogenous leukemia (AML) with poor risk features. Nonetheless, roughly 30% of such patients have leukemia recurrence and up to 2% of these are donor-derived leukemias, in which malignancy develops in the donor's transplanted cells, despite extremely low rates of leukemia in the donors themselves. Notably, over 20% of these malignancies carry chromosome 7 abnormalities nearly all of which are monosomies. Recent advances in whole exome and genome sequencing have allowed for detection of candidate genes that likely contribute to the development of AML in donor cells (donor leukemia, DCL). These genes include CEBPA, GATA2, JAK2, RUNX1, DDX41, EZH2, IDH1/2, DNMT3A, ASXL1, XPD, XRCC3, and CHEK1. The potential roles of variants in these genes are evaluated based on familial clustering of MDS/AML and corresponding animal studies demonstrating their leukemogenic nature. This review describes the spectrum of genetic aberrations detected in DCL cases in the literature with regard to the character of the individual cases, existing family cohorts that carry individual genes, and functional studies that support etiologic roles in AML development. DCL presents a unique opportunity to examine genetic variants in the donors and recipients with regards to progression to malignancy.
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Affiliation(s)
- Lacey Williams
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Kimberley Doucette
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Judith E Karp
- The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Catherine Lai
- Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC, USA.
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Kharfan-Dabaja MA, Kumar A, Hamadani M, Stilgenbauer S, Ghia P, Anasetti C, Dreger P, Montserrat E, Perales MA, Alyea EP, Awan FT, Ayala E, Barrientos JC, Brown JR, Castro JE, Furman RR, Gribben J, Hill BT, Mohty M, Moreno C, O'Brien S, Pavletic SZ, Pinilla-Ibarz J, Reddy NM, Sorror M, Bredeson C, Carpenter P, Savani BN. Clinical Practice Recommendations for Use of Allogeneic Hematopoietic Cell Transplantation in Chronic Lymphocytic Leukemia on Behalf of the Guidelines Committee of the American Society for Blood and Marrow Transplantation. Biol Blood Marrow Transplant 2016; 22:2117-2125. [PMID: 27660167 DOI: 10.1016/j.bbmt.2016.09.013] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/14/2016] [Indexed: 12/21/2022]
Abstract
We sought to establish clinical practice recommendations to redefine the role of allogeneic hematopoietic cell transplantation (allo-HCT) for patients with chronic lymphocytic leukemia (CLL) in an era of highly active targeted therapies. We performed a systematic review to identify prospective randomized controlled trials comparing allo-HCT against novel therapies for treatment of CLL at various disease stages. In the absence of such data, we invited physicians with expertise in allo-HCT and/or CLL to participate in developing these recommendations. We followed the Grading of Recommendations Assessment, Development and Evaluation methodology. For standard-risk CLL we recommend allo-HCT in the absence of response or if there is evidence of disease progression after B cell receptor (BCR) inhibitors. For high-risk CLL an allo-HCT is recommended after failing 2 lines of therapy and showing an objective response to BCR inhibitors or to a clinical trial. It is also recommended for patients who fail to show an objective response or progress after BCR inhibitors and receive BCL-2 inhibitors, regardless of whether an objective response is achieved. For Richter transformation, we recommend allo-HCT upon demonstration of an objective response to anthracycline-based chemotherapy. A reduced-intensity conditioning regimen is recommended whenever indicated. These recommendations highlight the rapidly changing treatment landscape of CLL. Newer therapies have disrupted prior paradigms, and allo-HCT is now relegated to later stages of relapsed or refractory CLL.
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Affiliation(s)
- Mohamed A Kharfan-Dabaja
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida; Department of Oncologic Sciences, University of South Florida Morsani College of Medicine, Tampa, Florida.
| | - Ambuj Kumar
- Program for Comparative Effectiveness Research, University of South Florida College of Medicine, Tampa, Florida
| | - Mehdi Hamadani
- Division of Hematology/Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | | | - Paolo Ghia
- Department of Onco-Haematology and Division of Experimental Oncology, IRCCS San Raffaele Hospital and Università Vita-Salute San Raffaele, Milan, Italy
| | - Claudio Anasetti
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida; Department of Oncologic Sciences, University of South Florida Morsani College of Medicine, Tampa, Florida
| | - Peter Dreger
- Department of Medicine V, University of Heidelberg, Heidelberg, Germany
| | - Emili Montserrat
- Department of Hematology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Miguel-Angel Perales
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Edwin P Alyea
- Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Farrukh T Awan
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Ernesto Ayala
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida; Department of Oncologic Sciences, University of South Florida Morsani College of Medicine, Tampa, Florida
| | - Jacqueline C Barrientos
- CLL Research and Treatment Program, Hofstra Northwell School of Medicine, New Hyde Park, New York
| | - Jennifer R Brown
- Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Januario E Castro
- University of California San Diego, Moores Cancer Center, La Jolla, California
| | - Richard R Furman
- Division of Hematology-Oncology, Weill Cornell Medical College, New York, New York
| | - John Gribben
- John Vane Cancer Centre, Charterhouse Square, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Brian T Hill
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Mohamad Mohty
- Department of Haematology, Saint Antoine Hospital, University Pierre & Marie Curie, and Inserm UMRs938, Paris, France
| | - Carol Moreno
- Hospital de la Santa Creu Sant Pau, Barcelona, Spain
| | - Susan O'Brien
- The University of California Irvine Chao Family Comprehensive Cancer Center, Orange, California
| | - Steven Z Pavletic
- National Institutes of Health-National Cancer Institute Experimental Transplantation and Immunology Branch, Bethesda, Maryland
| | - Javier Pinilla-Ibarz
- Department of Oncologic Sciences, University of South Florida Morsani College of Medicine, Tampa, Florida; Department of Malignant Hematology, H. Lee Moffitt Cancer Center, Tampa, Florida
| | - Nishitha M Reddy
- Department of Medicine, Division of Hematology/Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Mohamed Sorror
- Department of Medicine, University of Washington School of Medicine and Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Christopher Bredeson
- The Ottawa Hospital Blood and Marrow Transplant Program and the Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Paul Carpenter
- Department of Medicine, University of Washington School of Medicine and Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Bipin N Savani
- Department of Medicine, Division of Hematology/Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee
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Abstract
PURPOSE OF REVIEW Follicular lymphoma and chronic lymphocytic leukemia (CLL) are indolent B-cell malignancies characterized by a long preclinical phase and frequent relapses once treatment is initiated. The present review gathers recent findings on the occurrence, relevance, and dynamics of premalignant cells in the development of follicular lymphoma and CLL. RECENT FINDINGS The frequency of circulating cells bearing the follicular lymphoma hallmark translocation t(14;18) in healthy persons is correlated to the risk of developing follicular lymphoma later in life. Chronic B-cell receptor stimulation induces cyclic re-entries of BCL2 B cells into germinal centers that propagate clonal evolution and early follicular lymphoma progression. The lymph node microenvironment is a key activation/proliferation niche for malignant cells in CLL, also active in its preclinical antecedent monoclonal B-cell lymphocytosis. SUMMARY Considering recent studies of premalignant cells in both diseases and of their putative normal cell counterparts, we propose different models of premalignant evolution for the two pathologies. Before overt follicular lymphoma, t(14;18) B cells exploit the dynamics of memory B cells to re-enter multiple times into local or distant germinal centers, gather activation/proliferation signals, and gain additional mutations to progress to malignant lymphoma. In monoclonal B-cell lymphocytosis, CLL-like activated/memory B cells follow cycles of germinal center-independent activation/proliferation in lymph node. Finally, we discuss the next level genetic and functional analyses that should result in a better understanding of the origins and mechanisms of frequent relapses in follicular lymphoma and CLL.
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Strati P, Shanafelt TD. Monoclonal B-cell lymphocytosis and early-stage chronic lymphocytic leukemia: diagnosis, natural history, and risk stratification. Blood 2015; 126:454-62. [PMID: 26065657 PMCID: PMC4624440 DOI: 10.1182/blood-2015-02-585059] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/23/2015] [Indexed: 01/09/2023] Open
Abstract
Monoclonal B lymphocytosis (MBL) is defined as the presence of a clonal B-cell population in the peripheral blood with fewer than 5 × 10(9)/L B-cells and no other signs of a lymphoproliferative disorder. The majority of cases of MBL have the immunophenotype of chronic lymphocytic leukemia (CLL). MBL can be categorized as either low count or high count based on whether the B-cell count is above or below 0.5 × 10(9)/L. Low-count MBL can be detected in ∼5% of adults over the age of 40 years when assessed using standard-sensitivity flow cytometry assays. A number of biological and genetic characteristics distinguish low-count from high-count MBL. Whereas low-count MBL rarely progresses to CLL, high-count MBL progresses to CLL requiring therapy at a rate of 1% to 2% per year. High-count MBL is distinguished from Rai 0 CLL based on whether the B-cell count is above or below 5 × 10(9)/L. Although individuals with both high-count MBL and CLL Rai stage 0 are at increased risk of infections and second cancers, the risk of progression requiring treatment and the potential to shorten life expectancy are greater for CLL. This review highlights challenging questions regarding the classification, risk stratification, management, and supportive care of patients with MBL and CLL.
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Affiliation(s)
- Paolo Strati
- Mayo Clinic College of Medicine, Division of Hematology, Rochester, MN
| | - Tait D Shanafelt
- Mayo Clinic College of Medicine, Division of Hematology, Rochester, MN
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Abstract
Monoclonal B cell Lymphocytosis (MBL) or similar terms have been used for decades to describe the presence of light-chain restricted B lymphocytes with uncertain clinical significance, usually having a phenotype consistent with chronic lymphocytic leukemia (CLL). As diagnostic technology improved, ever smaller monoclonal B cell populations were identifiable in the population, and approximately half of people over 90 years old have a minimal (<1 cell/μL) circulating CLL-like B cell population. These minimal CLL-like B cell populations share some molecular characteristics with CLL, but have no clinical significance. In contrast, CLL-like MBL cases detected through hospital investigations are biologically indistinguishable from early stage CLL, but the neoplastic B cell levels are usually stable over time and the risk of progressive disease requiring treatment is much lower than for early stage CLL. However, there is usually partial or complete depletion of normal B cells, with an increased relative risk of severe infection, comparable to early stage CLL, which may impair overall survival.
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Caporaso NE, Marti GE, Landgren O, Azzato E, Weinberg JB, Goldin L, Shanafelt T. Monoclonal B cell lymphocytosis: clinical and population perspectives. CYTOMETRY PART B-CLINICAL CYTOMETRY 2010; 78 Suppl 1:S115-9. [PMID: 20839332 DOI: 10.1002/cyto.b.20555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Monoclonal B Cell Lymphocytosis (MBL) refers to clones of CLL-like cells that exhibit CLL characteristics that fall short of the numbers required for CLL diagnosis. Data from large CLL kindreds document increased prevalence of MBL suggesting a genetic contribution to its etiology. The molecular features that favor progression of MBL to CLL are poorly understood but an elevated B-cell count is a risk factor for progression. An important consideration when evaluating volunteers from CLL families who are willing to donate bone marrow is that MBL be ruled out since the MBL donor clone could result in a second CLL in the recipient. Further studies of MBL are needed to identify the molecular features and how they evolve during progression.
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Affiliation(s)
- Neil E Caporaso
- Genetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland 20892, USA.
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