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Means RT. Pure red cell aplasia: The second hundred years. Am J Med Sci 2023; 366:160-166. [PMID: 37327996 DOI: 10.1016/j.amjms.2023.06.009] [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: 04/29/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023]
Abstract
Pure red cell aplasia (PRCA) is a rare hematologic syndrome, characterized by an isolated normocytic anemia with severe reticulocytopenia, and defined by absence or near absence of erythroid precursors in the bone marrow. First described in 1922, PRCA may be a primary autoimmune or clonal myeloid or lymphoid disorder, but may also be secondary to other disorders of immune dysregulation/autoimmunity, to infections, to neoplasms, or to drugs. Insights from the study of PRCA have helped illuminate the understanding of the regulation of erythropoiesis. This review summarizes the classification, diagnostic, and therapeutic approach to PRCA as it begins its second century, with a particular focus on opportunities and challenges provided by new developments in the role of T-cells and T-cell regulatory mutations; the role of clonal hematopoiesis; and new developments in therapy for refractory PRCA and PRCA associated with ABO incompatible stem cell transplantation.
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Affiliation(s)
- Robert T Means
- Departments of Internal Medicine, Medical Education, and Pathology, James H. Quillen College of Medicine, Johnson City, TN, USA.
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2
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Lobbes H. [Pure red cell aplasia: Diagnosis, classification and treatment]. Rev Med Interne 2023; 44:19-26. [PMID: 36336519 DOI: 10.1016/j.revmed.2022.10.385] [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: 09/15/2022] [Revised: 10/13/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
Pure red cell aplasia (PRCA) is a rare anemia characterised by profound reticulocytopenia caused by a marked reduction in bone marrow erythroblasts, without abnormalities in other blood lineages. Blackfan-Diamond anemia is an inherited ribosomopathy responsible for a hereditary form of PRCA. Acquired PRCA are separated in primary and secondary forms, including Parvovirus B19 infection, thymoma, lymphoproliferative disorders, autoimmune diseases (lupus) and drug-induced PRCA. The pathophysiology of PRCA is not fully understood and involves both humoral and T lymphocyte autoreactive cells. In Parvovirus B19-related PRCA, treatment is based on polyvalent immunoglobulins. Thymectomy for thymoma is mandatory but results in prolonged remission in a limited number of cases. The therapeutic strategy is based on expert opinion: corticosteroids in monotherapy provide few sustained responses. The choice of an additional immunosuppressant drug is guided by the presence of an underlying disease. In most cases, cyclosporine A is the first choice providing the best response rate but requires a concentration monitoring (150 to 250 ng/mL). The second choice is cyclophosphamide in large granular lymphocyte leukaemia. Sirolimus (mTOR inhibitor) seems to be a promising option especially in refractory cases. Transfusion independence is the main objective. If the patient receives numerous red blood cell transfusions (> 20 packs), iron overload assessment is crucial to initiate an iron chelation. A retrospective and prospective national cohort (EPIC-F) has been set up and is now available to include each case of PRCA to improve the knowledge of this disease and to optimize the therapeutic strategy.
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Affiliation(s)
- Hervé Lobbes
- Service de médecine interne, Hôpital Estaing, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France; Université Clermont Auvergne, CHU Clermont-Ferrand, CNRS, Institut Pascal, 63000 Clermont-Ferrand, France.
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3
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Gordon MJ, Ferrajoli A. Unusual complications in the management of chronic lymphocytic leukemia. Am J Hematol 2022; 97 Suppl 2:S26-S34. [PMID: 35491515 DOI: 10.1002/ajh.26585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023]
Abstract
Chronic lymphocytic leukemia (CLL) is a common, indolent disease that typically presents with a proliferation of mature, immunologically dysfunctional CD5+ B-cells which preferentially occupy the bone marrow, peripheral blood and lymphoid organs. Immune dysfunction leads to an increase in autoimmune diseases which occur in approximately 10% of patients with CLL. Autoimmune cytopenias are the most common, but other organs may be affected as well. The treatment of these conditions typically depends on the extent of CLL and severity of symptoms, but generally consists of CLL-directed therapies, immunosuppression or both. CLL may also infiltrate extranodal sites in the body. Symptomatic extranodal CLL or extranodal disease which threatens normal organ function is an indication for initiation of CLL-directed therapy. The following review summarizes autoimmune and extranodal complications that can occur in patients with CLL and our suggested approach to their treatment.
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Affiliation(s)
- Max J Gordon
- MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
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Xu Q, Yu J, Lin X, Li Y, Zhang K. CB-LPD, MGUS, T-LGLL, and PRCA: A rare case report of 4 concomitant hematological disorders. Medicine (Baltimore) 2021; 100:e27874. [PMID: 34964755 PMCID: PMC8615434 DOI: 10.1097/md.0000000000027874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/03/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Monoclonal gammopathy of undetermined significance (MGUS) is a clinically asymptomatic clonal plasma cell or lymphoplasmacytic proliferative disorder. Recently, some case reports have described the association of pure red cell aplasia (PRCA) with MGUS, even with a relatively low monoclonal immunoglobulin burden. T large granular lymphocyte leukemia (T-LGLL) is a chronic lymphoproliferative disorder characterized by clonal expansion of T large granular lymphocytes, which is rare in China. There are some reports about T-LGL leukemia in patients with B-cell lymphoma; however, it is very rare that T-LGLL coexists with MGUS and clonal B-cell lymphoproliferative disorders (CB-LPD). PATIENT CONCERNS A 77-year-old man was hospitalized because of anemia. He was diagnosed with MGUS, CB-LPD, and PRCA. During the development of the disease, a group of abnormal T lymphocytes was detected by flow cytometry of peripheral blood. DIAGNOSIS Combining clinical manifestations with the result of T cell receptor gene rearrangement and immunophenotype, it was consistent with the diagnosis of T large granular lymphocyte leukemia. INTERVENTIONS The patient was treat with bortezomib and dexamethasone regimen, Rituximab and sirolimus. OUTCOMES The patient was transfusion independent after therapies. LESSONS We report a patient with 4 concomitant hematological disorders: T-LGLL, MGUS, CB-LPD, and PRCA, aiming to represent the clinical and flow cytometry characteristics of these concomitant diseases, analyze the mechanism between diseases, and provide a clinical reference.
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Affiliation(s)
- Qinhong Xu
- Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen, Fujian, China
| | - Jieni Yu
- Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen, Fujian, China
| | - Xiaoyan Lin
- The Center of Clinical Laboratory, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen, Fujian, China
| | - Youli Li
- Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen, Fujian, China
| | - Kejie Zhang
- Department of Hematology, Zhongshan Hospital, Xiamen University, Fujian Medical University Clinic Teaching Hospital, Xiamen, Fujian, China
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Huang Y, Jiang X, Han B. Effective treatment of refractory acquired pure red blood cell aplasia with eltrombopag and sirolimus: a case report. Ther Adv Hematol 2020; 11:2040620720940144. [PMID: 32733663 PMCID: PMC7372523 DOI: 10.1177/2040620720940144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/11/2020] [Indexed: 12/17/2022] Open
Abstract
Acquired pure red cell aplasia (aPRCA) is a kind of anemia characterized
by severe reticulocytopenia and reduced bone marrow erythroblastic
cells. For patients who are refractory to the first-line therapy
(cyclosporin A with/without glucocorticoids), second-line therapy is
considered less effective. We report on a patient with primary aPRCA
who was refractory to cyclosporin A, glucocorticoids, and several
second-line regimens. The patient was treated with sirolimus for
10 months with no improvement in hemoglobin but complete response was
achieved after adding eltrombopag at a dosage of 25 mg/day.
Eltrombopag was well tolerated with no evidence of clonal evolution at
the end of follow up. This case provided a new attempt at treating
patients with refractory/relapse aPRCA with eltrombopag, probably in
combination with sirolimus.
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Affiliation(s)
- Yuzhou Huang
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xianyong Jiang
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Bing Han
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China
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6
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De Back TR, Kater AP, Tonino SH. Autoimmune cytopenias in chronic lymphocytic leukemia: a concise review and treatment recommendations. Expert Rev Hematol 2018; 11:613-624. [DOI: 10.1080/17474086.2018.1489720] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tim R. De Back
- Department of Hematology and Lymphoma and Myeloma Center (LYMMCARE), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Arnon P. Kater
- Department of Hematology and Lymphoma and Myeloma Center (LYMMCARE), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Sanne H. Tonino
- Department of Hematology and Lymphoma and Myeloma Center (LYMMCARE), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Long Z, Yu F, Du Y, Li H, Chen M, Zhuang J, Han B. Successful treatment of refractory/relapsed acquired pure red cell aplasia with sirolimus. Ann Hematol 2018; 97:2047-2054. [DOI: 10.1007/s00277-018-3431-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/01/2018] [Indexed: 01/08/2023]
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8
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Balasubramanian SK, Sadaps M, Thota S, Aly M, Przychodzen BP, Hirsch CM, Visconte V, Radivoyevitch T, Maciejewski JP. Rational management approach to pure red cell aplasia. Haematologica 2017; 103:221-230. [PMID: 29217782 PMCID: PMC5792266 DOI: 10.3324/haematol.2017.175810] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 12/06/2017] [Indexed: 11/09/2022] Open
Abstract
Pure red cell aplasia is an orphan disease, and as such lacks rationally established standard therapies. Most cases are idiopathic; a subset is antibody-mediated. There is overlap between idiopathic cases and those with T-cell large granular lymphocytic leukemia, hypogammaglobulinemia, and low-grade lymphomas. In each of the aforementioned, the pathogenetic mechanisms may involve autoreactive cytotoxic responses. We selected 62 uniformly diagnosed pure red cell aplasia patients and analyzed their pathophysiologic features and responsiveness to rationally applied first-line and salvage therapies in order to propose diagnostic and therapeutic algorithms that may be helpful in guiding the management of prospective patients, 52% of whom were idiopathic, while the others involved large granular lymphocytic leukemia, thymoma, and B-cell dyscrasia. T-cell-mediated responses ranged between a continuum from polyclonal to monoclonal (as seen in large granular lymphocytic leukemia). During a median observation period of 40 months, patients received a median of two different therapies to achieve remission. Frequently used therapy included calcineurin-inhibitors with a steroid taper yielding a first-line overall response rate of 76% (53/70). Oral cyclophosphamide showed activity, albeit lower than that produced by cyclosporine. Intravenous immunoglobulins were effective both in parvovirus patients and in hypogammaglobulinemia cases. In salvage settings, alemtuzumab is active, particularly in large granular lymphocytic leukemia-associated cases. Other potentially useful salvage options include rituximab, anti-thymocyte globulin and bortezomib. The workup of acquired pure red cell aplasia should include investigations of common pathological associations. Most effective therapies are directed against T-cell-mediated immunity, and therapeutic choices need to account for associated conditions that may help in choosing alternative salvage agents, such as intravenous immunoglobulin, alemtuzumab and bortezomib.
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Affiliation(s)
- Suresh Kumar Balasubramanian
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Meena Sadaps
- Department of Internal Medicine, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Swapna Thota
- Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Mai Aly
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Bartlomiej P Przychodzen
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Cassandra M Hirsch
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Valeria Visconte
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Tomas Radivoyevitch
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, OH, USA
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Abstract
Pure red cell aplasia (PRCA) is a syndrome defined by a normocytic normochromic anemia with severe reticulocytopenia and marked reduction or absence of erythroid precursors from the bone marrow. Diamond-Blackfan anemia is a congenital form of PRCA. Acquired PRCA may be either a primary disorder or secondary to some other disorder or agent. Primary acquired PRCA is an autoimmune disorder that is frequently antibody-mediated. Myelodysplastic syndromes may also present with the morphologic appearance of PRCA. Secondary acquired PRCA may be associated with collagen vascular/autoimmune disorders such as systemic lupus erythematosus; lymphoproliferative disorders such as chronic lymphocytic leukemia or large granular lymphocyte leukemia; infections, particularly B19 parvovirus; thymoma and other solid tumors; or a variety of other disorders, drugs, or toxic agents. The therapeutic approach to PRCA typically involves immunosuppression, but specific pathogenic subtypes are associated with specific therapeutic approaches. Cyclosporine A, with or without concurrent corticosteroids, appears to be the single most effective immunosuppressive agent.
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Abstract
Pure red cell aplasia (PRCA) is a syndrome defined by a normocytic normochromic anemia with severe reticulocytopenia and marked reduction or absence of erythroid precursors from the bone marrow. Diamond-Blackfan anemia is a congenital form of PRCA. Acquired PRCA may be either a primary disorder or secondary to some other disorder or agent. Primary acquired PRCA is an autoimmune disorder that is frequently antibody-mediated. Myelodysplastic syndromes may also present with the morphologic appearance of PRCA. Secondary acquired PRCA may be associated with collagen vascular/autoimmune disorders such as systemic lupus erythematosus; lymphoproliferative disorders such as chronic lymphocytic leukemia or large granular lymphocyte leukemia; infections, particularly B19 parvovirus; thymoma and other solid tumors; or a variety of other disorders, drugs, or toxic agents. The therapeutic approach to PRCA typically involves immunosuppression, but specific pathogenic subtypes are associated with specific therapeutic approaches. Cyclosporine A, with or without concurrent corticosteroids, appears to be the single most effective immunosuppressive agent.
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MESH Headings
- Adrenal Cortex Hormones/therapeutic use
- Anemia, Diamond-Blackfan/drug therapy
- Anemia, Diamond-Blackfan/immunology
- Anemia, Diamond-Blackfan/pathology
- Autoimmune Diseases/drug therapy
- Autoimmune Diseases/immunology
- Autoimmune Diseases/pathology
- Cyclosporine/therapeutic use
- Humans
- Immunosuppressive Agents/therapeutic use
- Leukemia, Large Granular Lymphocytic/drug therapy
- Leukemia, Large Granular Lymphocytic/immunology
- Leukemia, Large Granular Lymphocytic/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Myelodysplastic Syndromes/drug therapy
- Myelodysplastic Syndromes/etiology
- Myelodysplastic Syndromes/immunology
- Myelodysplastic Syndromes/pathology
- Parvoviridae Infections/drug therapy
- Parvoviridae Infections/immunology
- Parvoviridae Infections/pathology
- Parvovirus B19, Human/immunology
- Thymoma/drug therapy
- Thymoma/immunology
- Thymoma/pathology
- Vasculitis/drug therapy
- Vasculitis/immunology
- Vasculitis/pathology
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Affiliation(s)
- Robert T Means
- Office of the Dean, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN
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Tendas A, Niscola P, Scaramucci L, Cupelli L, Perrotti AP, de Fabritiis P. Primary acquired chronic pure red cell aplasia refractory to standard treatments: remission with rituximab. Blood Res 2016; 51:137-8. [PMID: 27382560 PMCID: PMC4931933 DOI: 10.5045/br.2016.51.2.137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/08/2015] [Accepted: 09/01/2015] [Indexed: 11/17/2022] Open
Affiliation(s)
| | | | | | - Luca Cupelli
- Hematology Unit, Sant'Eugenio Hospital, Rome, Italy
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12
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D'Arena G, Guariglia R, La Rocca F, Trino S, Condelli V, De Martino L, De Feo V, Musto P. Autoimmune cytopenias in chronic lymphocytic leukemia. Clin Dev Immunol 2013; 2013:730131. [PMID: 23690826 PMCID: PMC3652131 DOI: 10.1155/2013/730131] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/18/2013] [Accepted: 03/22/2013] [Indexed: 11/25/2022]
Abstract
The clinical course of chronic lymphocytic leukemia (CLL) may be complicated at any time by autoimmune phenomena.The most common ones are hematologic disorders, such as autoimmune hemolytic anemia (AIHA) and immune thrombocytopenia (ITP). Pure red cell aplasia (PRCA) and autoimmune agranulocytosis (AG) are, indeed, more rarely seen. However, they are probably underestimated due to the possible misleading presence of cytopenias secondary to leukemic bone marrow involvement or to chemotherapy cytotoxicity. The source of autoantibodies is still uncertain, despite the most convincing data are in favor of the involvement of resting normal B-cells. In general, excluding the specific treatment of underlying CLL, the managementof these complications is not different from that of idiopathic autoimmune cytopenias or of those associated to other causes. Among different therapeutic approaches, monoclonal antibody rituximab, given alone or in combination, has shown to be very effective.
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MESH Headings
- Agranulocytosis/complications
- Agranulocytosis/drug therapy
- Agranulocytosis/immunology
- Agranulocytosis/pathology
- Anemia, Hemolytic, Autoimmune/complications
- Anemia, Hemolytic, Autoimmune/drug therapy
- Anemia, Hemolytic, Autoimmune/immunology
- Anemia, Hemolytic, Autoimmune/pathology
- Antibodies, Monoclonal, Murine-Derived/therapeutic use
- Autoantibodies/immunology
- Autoimmunity
- Humans
- Immunologic Factors/therapeutic use
- Leukemia, Lymphocytic, Chronic, B-Cell/complications
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Red-Cell Aplasia, Pure/complications
- Red-Cell Aplasia, Pure/drug therapy
- Red-Cell Aplasia, Pure/immunology
- Red-Cell Aplasia, Pure/pathology
- Rituximab
- Thrombocytopenia/complications
- Thrombocytopenia/drug therapy
- Thrombocytopenia/immunology
- Thrombocytopenia/pathology
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Affiliation(s)
- Giovanni D'Arena
- Onco-Hematology Department, IRCCS Centro di Riferimento Oncologico della Basilicata, 85028 Rionero in Vulture, Italy.
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D’Arena G, Capalbo S, Laurenti L, Del Poeta G, Nunziata G, Deaglio S, Spinosa G, Tarnani M, De Padua L, Califano C, Ferrara F, Cascavilla N. Chronic lymphocytic leukemia-associated immune thrombocytopenia treated with rituximab: a retrospective study of 21 patients. Eur J Haematol 2010; 85:502-7. [DOI: 10.1111/j.1600-0609.2010.01527.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pure red cell aplasia as first manifestation of splenic marginal zone lymphoma-successful treatment with rituximab: a case report. CASES JOURNAL 2009; 2:6913. [PMID: 19918496 PMCID: PMC2769326 DOI: 10.4076/1757-1626-2-6913] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Accepted: 07/23/2009] [Indexed: 11/24/2022]
Abstract
Introduction Acquired pure red cell aplasia is a rare disorder, usually appearing secondary to various pathologic conditions such as thymoma, systemic autoimmune diseases or in the course of lymphomas. Conventional treatment consists of immunosuppression with corticosteroids, antithymocyte globulin or cyclosporin-A. Case presentation 8 weekly courses of rituximab were administered to a patient who presented with pure red cell aplasia secondary to newly diagnosed splenic marginal zone lymphoma. Transfusion independence was achieved after the 6th course, and pure red cell aplasia receded completely with therapy. Conclusion Pure red cell aplasia may ensue early in the course of splenic marginal zone lymphoma and other low grade lymphomas. Rituximab is a safe and effective alternative treatment for pure red cell aplasia secondary to lymphoproliferative disorders.
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D'Arena G, Cascavilla N. Chronic Lymphocytic Leukemia-Associated Pure Red Cell Aplasia. Int J Immunopathol Pharmacol 2009; 22:279-86. [DOI: 10.1177/039463200902200204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Pure red cell aplasia (PRCA) is a well-known marrow failure which may be acquired or constitutional/congenital, as the Diamond-Blackfan syndrome. Acquired PRCA may show as a primary hematological disorder or secondary to an associated disease, infection or drug. PRCA rarely complicates chronic lymphocytic leukemia (CLL), may occur anytime in the course of the disease and, in this context, it is a minority of total PRCA. Anemia due to PRCA in CLL patients must be carefully evaluated and differentiated from other causes (autoimmune hemolytic anemia, neoplastic lymphocyte infiltration of bone marrow, chemotherapy) that require a different therapeutic approach. PRCA is thought to be an immunologically mediated disorder, but there is no uniformity in the setting of the management. Immunosuppressive therapy is frequently given, such as steroids and cyclosporin-A. Recently, anecdotal cases have been published on the effectiveness of monoclonal antibodies rituximab and alemtuzumab.
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Affiliation(s)
- G. D'Arena
- Hematology and Stem Cell Transplantation Unit, IRCCS “Casa Sollievo della Sofferenza” Hospital, San Giovanni Rotondo, Italy
| | - N. Cascavilla
- Hematology and Stem Cell Transplantation Unit, IRCCS “Casa Sollievo della Sofferenza” Hospital, San Giovanni Rotondo, Italy
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