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large granular leukemia

Mayumi Hatsuse, Yoko Taminishi, Saori Maegawa-Matsui, Shin-Ichi Fuchida, Akira Okano, Satoshi Murakami, Toru Inaba, Chihiro Shimazaki
A 61-year-old female was diagnosed with a lymphoid crisis of chronic myeloid leukemia (CML) in February 201X and started chemotherapy combined with dasatinib (DAS). After 1 month of initiating second consolidation therapy, the neutrophils decreased to 1%, bone marrow examination revealed large granular lymphocytes (LGL) at 13%, and complete cytogenetic remission was attained (CCyR). Suspecting DAS-induced agranulocytosis, DAS was discontinued. After 2 weeks, LGL disappeared and neutrophils recovered. In this case, CCyR was attained for the first time when LGL increased...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
Kristine C Olson, Paige M Kulling Larkin, Rossana Signorelli, Cait E Hamele, Thomas L Olson, Mark R Conaway, David J Feith, Thomas P Loughran
Calcitriol, the active form of vitamin D, has been well documented to act directly on immune cells and malignant cells. Activated T cells are one of the best characterized targets of calcitriol, with effects including decreasing inflammatory cytokine output and promoting anti-inflammatory cytokine production. However, the effects of calcitriol on natural killer (NK) cells are less clear. Reports suggest that only immature NK cell populations are affected by calcitriol treatment resulting in impaired cytotoxic function and cytokine production, while mature NK cells may have little or no response...
November 16, 2018: Cytokine
C Suzuki, I Hirai, H Nomura, T Ouchi, M Okayama, S Okamoto, M Amagai, K Tanese, H Takahashi
T cell large granular lymphocyte leukemia (T-LGLL) is a rare chronic lymphoproliferative disorder of mature post-thymic large granular lymphocytes (LGL); either cytotoxic T-lymphocytes or natural killer cells.1 Major phenotype of LGL cells is TCRαβ+CD3+CD4-CD5+CD8+CD27-CD28-CD45-CD57+.2 Less than 10% of cases express TCRγδ instead of TCRαβ.2 Most cases of T-LGLL have an indolent course1 and its cutaneous manifestations have been poorly documented. This article is protected by copyright. All rights reserved...
November 16, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Sandra Kojić Katović, Ankica Vasilj, Goran Rinčić
T-cell large granular lymphocytic leukemia (T-LGLL) is an uncommon but probably underdiagnosed disease caused by clonal proliferation of large granular lymphocytes. Diagnosis is typically based on the high number of morphologically characteristic lymphoid cells and finding of an abnormal immunophenotype by flow cytometry. Because of its relatively indolent clinical behavior, observation is often an appropriate therapy. Here we present a case of a 53-year-old male admitted to the hospital because of abdominal pain...
June 2018: Acta Clinica Croatica
Zhi-Yuan Qiu, Yan Wang, Jun Zhang, Zhao Zhang, Lei Fan, Rong Wang, Yu-Jie Wu, Ye-Qing Zhang, Wei Xu, Jian-Yong Li
RATIONALE: T-cell large granular lymphocytic leukemia (T-LGLL) is a rare lymphoproliferative neoplasm of cytotoxic T cells and renal cell carcinoma (RCC) is the most common form of kidney cancer, but T-LGLL associated with RCC has never been reported. PATIENT CONCERNS: A 58-year-old Chinese male presented with general fatigue and intermittent-remittent fever, accompanied by palpitations and dizziness. DIAGNOSIS: Radical nephrectomy was performed, and a diagnosis of clear cell carcinoma (T1N0M0, I phase) was made based on the postoperative pathology findings...
November 2018: Medicine (Baltimore)
Fumihiro Ishida
Aggressive NK cell leukemia (ANKL) is a rare malignant lymphoproliferative disorder of mature NK cells closely associated with Epstein-Barr virus (EBV) and more common in East Asia than in other areas. Significant variations exist in the morphology of ANKL tumor cells, from typical large granular lymphocyte morphology to highly atypical features with basophilic cytoplasm containing azurophilc granules. The main involved sites are hepatosplenic lesions, bone marrow and peripheral blood, and nasal or skin lesions are infrequent...
2018: Frontiers in Pediatrics
T Tiffany Wang, Jun Yang, Yong Zhang, Meili Zhang, Sigrid Dubois, Kevin C Conlon, Yutaka Tagaya, Cait E Hamele, Shubha Dighe, Thomas L Olson, David J Feith, Nazli Azimi, Thomas A Waldmann, Thomas P Loughran
Interleukin-15 (IL-15) and IL-2 drive T-cell malignancies including T-cell large granular lymphocyte leukemia (T-LGLL) and HTLV-1 driven adult T-cell leukemia (ATL). Both cytokines share common γ-chain receptors and downstream signaling pathways. T-LGLL is characterized by clonal expansion of cytotoxic T cells and is associated with abnormal JAK/STAT signaling. ATL is an aggressive CD4+ T-cell neoplasm associated with HTLV-1. T-LGLL and ATL share dependence on IL-2 and IL-15 for survival and both diseases lack effective therapies...
October 23, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Toru Kawakami, Nodoka Sekiguchi, Jun Kobayashi, Tatsuya Imi, Kazuyuki Matsuda, Taku Yamane, Sayaka Nishina, Yasushi Senoo, Hitoshi Sakai, Toshiro Ito, Tomonobu Koizumi, Makoto Hirokawa, Shinji Nakao, Hideyuki Nakazawa, Fumihiro Ishida
Dysregulation of T-cell-mediated immunity is responsible for acquired pure red cell aplasia (PRCA). Although STAT3 mutations are frequently detected in patients with T-cell large granular lymphocytic leukemia (T-LGLL), which is often complicated by PRCA and which is also reported to be associated with acquired aplastic anemia (AA) and myelodysplastic syndrome (MDS), whether STAT3 -mutated T cells are involved in the pathophysiology of PRCA and other types of bone marrow failure remains unknown. We performed STAT3 mutation analyses of the peripheral blood mononuclear cells from PRCA patients (n = 42), AA (n = 54), AA-paroxysmal nocturnal hemoglobinuria (AA-PNH; n = 7), and MDS (n = 21) using an allele-specific polymerase chain reaction and amplicon sequencing...
October 23, 2018: Blood Advances
Houfang Sun, Sheng Wei, Lili Yang
OBJECTIVES: Large granular lymphocyte (LGL) leukemia is a rare type of lymphoproliferative disease caused by clonal antigenic stimulation of T cells and natural killer (NK) cells. METHODS: In this review, we focus on the current knowledge of the immunological dysfunctions associated with LGL leukemia and the associated disorders coexistent with this disease. Novel therapeutic options targeting known molecular mechanisms are also discussed. RESULTS AND DISCUSSION: The pathogenesis of LGL leukemia involves the accumulation of gene mutations, dysregulated signaling pathways and immunological dysfunction...
October 18, 2018: Hematology (Amsterdam, Netherlands)
Aya Nakaya, Shinya Fujita, Atsushi Satake, Takahisa Nakanishi, Yoshiko Azuma, Yukie Tsubokura, Masaaki Hotta, Hideaki Yoshimura, Kazuyoshi Ishii, Tomoki Ito, Shosaku Nomura
Dasatinib is currently approved for clinical use as a first-line treatment agent for newly diagnosed chronic myeloid leukemia (CML). However, only a few clinical trials have been performed to evaluate dasatinibinduced PE following first-line therapy. We investigated the incidence and clinical features of dasatinib-induced PE following first-line therapy in Japanese CML patients of real world clinical practice settings. Among 22 patients, the median age of PE-positive patients was higher than that of PE-negative patients...
September 5, 2018: Hematology Reports
M Hasib Sidiqi, Mohammed A Aljama, David S Viswanatha, David Dingli
No abstract text is available yet for this article.
September 20, 2018: Haematologica
Aline Moignet, Thierry Lamy
Large granular lymphocyte (LGL) leukemia has been recognized in the World Health Organization classifications among mature T cell and natural killer cell neoplasms and is divided into three categories. Chronic T cell leukemia and natural killer cell lymphocytosis can be considered as a similar spectrum of an indolent disease characterized by cytopenias and autoimmune conditions. The last category, aggressive natural killer cell LGL leukemia is very rare, related to Epstein-Barr virus, and seen mainly in young Asian people...
May 23, 2018: American Society of Clinical Oncology Educational Book
Salman Ahmed, Prachi Jani, Mohamad H Yamani, Sikander Ailawadhi, Victoria R Alegria, Meghna Ailawadhi
No abstract text is available yet for this article.
October 2018: Journal of Oncology Practice
Naoki Watanabe, Tomoiku Takaku, Kazuyoshi Takeda, Shuichi Shirane, Tokuko Toyota, Michiaki Koike, Masaaki Noguchi, Takao Hirano, Hiroshi Fujiwara, Norio Komatsu
Dasatinib induces lymphocytosis of large granular lymphocytes (LGLs) in a proportion of patients with chronic myelogenous leukemia (CML), and is associated with better clinical outcomes. LGLs consist of cytotoxic T lymphocytes and natural killer cells; however, the context and phenotypic/functional features of each type of LGL are unknown. To better define features of these LGLs, we investigated lymphocytosis in CML patients treated with dasatinib. D57-positive and CD4-positive type I T-helper (Th) cells (CD57+ Th cells) rarely occur in CML patients without lymphocytosis and in healthy individuals; however, a substantial increase in the proportion of CD57+ Th cells was observed in CML patients treated with dasatinib...
December 2018: International Journal of Hematology
Roberto Cupaiolo, Soraya Cherifi, Christophe Lelubre, Danielle Govaerts, Quentin Delefortrie, Francis Corazza, Charles Chevalier
Large granular lymphocyte leukemia (LGL) are chronic lymphoproliferative disorders classified into three main groups: T-cell LGL leukemia (T-LGL), aggressive NK-cell leukemia and chronic lymphoproliferative disorder of NK cells (NK-LGL). Patients with LGL leukemia exhibit chronic (>3 months) and moderate (<1G/L) to substantial monoclonal expansion of large granular lymphocytes in the peripheral blood. Cytologically, large granular lymphocytes are medium to large cells which are further characterized by an eccentric nucleus and a slightly basophilic cytoplasm containing azurophilic granules...
August 1, 2018: Annales de Biologie Clinique
Loretta J Nastoupil
No abstract text is available yet for this article.
July 2018: Clinical Advances in Hematology & Oncology: H&O
Nolan R Bruce, Zachary W Tilley, Jacob T Carlson, Juan Camilo Barreto Andrade
T-cell large granular leukemia (T-LGL) is a rare lymphoproliferative disorder characterized by the clonal expansion of cytotoxic T lymphocytes. We present a unique case of T-LGL and concurrent retroperitoneal sarcoma occurring in a patient with long-standing rheumatoid arthritis. Pathology revealed a high-grade dedifferentiated liposarcoma. The diagnosis of T-LGL with a synchronous retroperitoneal sarcoma is a case that highlights the surgical management of these two rare conditions.
July 2018: Journal of Surgical Case Reports
Ashley Rose, Leidy Isenalumhe, Magali Van den Bergh, Lubomir Sokol
We report five patients with human immunodeficiency virus-1/acquired immunodeficiency syndrome (HIV-1/AIDS) who developed T-cell large granular lymphocytic proliferation (T-LGLP) or leukemia (T-LGLL). None of the patients fulfilled criteria for diagnosis of diffuse infiltrative lymphocyte syndrome (DILS) or HIV-associated CD8+ lymphocytosis syndrome at the time of diagnosis of LGL. The immunophenotype of malignant T-cells was identical in three patients with co-expression of CD3, CD8, CD57, and T-cell receptor (TCR) alpha/beta...
2018: Mediterranean Journal of Hematology and Infectious Diseases
Claire Lozano, Sophie Brun, Anne Arnaud, Philippe Gaulard, Samia Gonzalez, Julien Crouzet, Jean-Christophe Gris
No abstract text is available yet for this article.
July 2, 2018: Leukemia & Lymphoma
Jadee L Neff, Aruna Rangan, Dragan Jevremovic, Phuong L Nguyen, April Chiu, Ronald S Go, Dong Chen, William G Morice, Min Shi
Large granular lymphocytic leukemia (LGLL) is a chronic proliferation of cytotoxic lymphocytes in which more than 70% of patients develop cytopenia(s) requiring therapy. LGLL includes T-cell LGLL and chronic lymphoproliferative disorder of natural killer (NK) cells. The neoplastic cells in LGLL usually exhibit a single immunophenotype in a patient, with CD8-positive/αβ T-cell type being the most common, followed by NK-cell, γδ T-cell, and CD4-positive/αβ T-cell types. We investigated a total of 220 LGLL cases and identified 12 mixed-phenotype LGLLs (5%): 7 cases with coexistent αβ T-cell and NK-cell clones and 5 with coexistent αβ and γδ T-cell clones...
November 2018: Human Pathology
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