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Journal of Clinical and Experimental Hematopathology: JCEH

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https://www.readbyqxmd.com/read/27980307/genetic-and-epigenetic-modulation-of-cd20-expression-in-b-cell-malignancies-molecular-mechanisms-and-significance-to-rituximab-resistance
#1
Akihiro Tomita
CD20 is a differentiation related cell surface phosphoprotein that is expressed during early pre-B cell stages until plasma cell differentiation, and is a suitable molecular target for B-cell malignancies by monoclonal antibodies such as rituximab, ofatumumab, obinutuzumab and others. CD20 expression is confirmed in most B-cell malignancies; however, the protein expression level varies in each patient, even in de novo tumors, and down-modulation of CD20 expression after chemoimmunotherapy with rituximab, resulting in rituximab resistance, has been recognized in the clinical setting...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980306/treatment-of-diffuse-large-b-cell-lymphoma
#2
Kana Miyazaki
Diffuse large B-cell lymphoma (DLBCL) comprises a heterogeneous group with pathophysiological, genetic and clinical features. Many patients can be cured with R-CHOP therapy, which is the current standard regimen. Despite recent progress in improving patient survival, the 40% survival of DLBCL patients remains poor. Therefore, the most important issue for patients with DLBCL remains the development of a new front-line therapy. Several studies have reported that intensified chemotherapy with dose-adjusted EPOCH-R or R-ACVBP was superior to R-CHOP...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980305/molecular-pathogenesis-of-diffuse-large-b-cell-lymphoma
#3
Akito Dobashi
Diffuse large B-cell lymphoma (DLBCL) is divided into germinal center B-like (GCB) DLBCL and activated B-like (ABC) DLBCL. In recent years, whole genome sequencing (WGS), whole exome sequencing (WES), and transcriptome sequencing (RNA-seq) have been performed for samples from many patients with DLBCL. Here, I present a review of the results of next generation sequencing data for DLBCL. Somatic mutations show a low identity between studies with only 10-20% gene overlap. DLBCL is a disease that results from various molecular pathogeneses...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980304/diffuse-large-b-cell-lymphoma-in-2016
#4
Ritsuro Suzuki
No abstract text is available yet for this article.
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980303/isochromosome-17q-a-novel-finding-in-myeloid-sarcoma
#5
Sanjay de Mel, Joanne Lee, Constance Chua, Sok Peng Chua, Leena Gole, Limei Poon, Jenny Li, Siok Bian Ng, Te Chih Liu, Wee Joo Chng, Yen Lin Chee
No abstract text is available yet for this article.
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980302/cord-blood-transplantation-following-reduced-intensity-conditioning-for-epstein-barr-virus-associated-hemophagocytic-lymphohistiocytosis-during-systemic-lupus-erythematosus-treatment
#6
Takuro Kuriyama, Noriaki Kawano, Kiyoshi Yamashita, Ikuo Kikuchi
Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (EBV-HLH) is a serious disorder in which monoclonal growth of T cells infected with EBV and macrophage activation cause pancytopenia, high fever and acute liver failure. Patients with chemotherapy- or immunosuppression-resistant EBV-HLH require allogeneic hematopoietic stem cell transplantation (allo-HSCT), but patients who have no sibling donors may not have time to wait for an unrelated donor. In pediatric patients, there are some reports on allogeneic cord blood transplantation (allo-CBT) for the treatment of EBV-HLH; however, in adult patients, reports of allo-CBT for EBV-HLH are quite limited...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980301/six-cases-of-cd20-positive-adult-t-cell-leukemia
#7
Riko Kawano, Daisuke Niino, Koichi Ohshima
Adult T-cell leukaemia/lymphoma (ATLL) is a neoplasm originating in mature CD4(+) peripheral T cells. However, rare cases of CD20(+) ATLL have been reported. Here, we describe six cases of CD20(+) ATLL diagnosed in our department. The median age was 79 years (range, 54-90 years); two patients were men, and four were women. Elevated lactate dehydrogenase was observed in four cases. All cases were lymphoma type and positive for human T-lymphotropic virus-1 (HTLV-1). HTLV-1 proviral DNA was detected in four cases...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980300/langerhans-cell-histiocytosis-and-langerhans-cell-sarcoma-current-understanding-and-differential-diagnosis
#8
Hirokazu Nakamine, Mitsunori Yamakawa, Tadashi Yoshino, Takaya Fukumoto, Yasunori Enomoto, Itaru Matsumura
Langerhans cell (LC) histiocytosis (LCH) and LC sarcoma (LCS) are proliferative processes consisting of cells having morphologic and phenotypic features of Langerhans cells (LCs), although the latter may have lost some of these features. Because neoplastic nature of LCH as well as LCS is more likely by recent studies, a category of LC hyperplasia can be better characterized. LCH and LCS are rarely seen in daily pathology practice, but it is important to accurately characterize these lesions. For this purpose, an outline covering proliferations of LC and related cells was constructed...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27980299/autologous-hematopoietic-stem-cell-transplantation-for-diffuse-large-b-cell-lymphoma
#9
Eisei Kondo
High-dose chemotherapy supported by autologous stem cell support/transplantation (HDT/ASCT) has been a standard of care over the last two decades in patients with relapsed or refractory(R/R) diffuse large B-cell lymphoma (DLBCL), which is sensitive to salvage chemotherapy. HDT/ASCT for high-risk DLBCL in upfront setting remains controversial, so it is not recommended for clinical practice. Various promising salvage chemotherapy regimens have been reported in phase 2 studies; however, two large randomized phase 3 studies showed similar efficacy of R-ICE vs...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334861/a-rare-case-of-acute-myeloid-leukemia-with-a-t-2-3-chromosomal-translocation-characterized-by-thrombophilia-and-chemoresistance
#10
Bozzetti Cecilia, Türkmen Seval, Richter Ulrich, Fransecky Lars, Gürkan Bal, Carsten-Oliver Schulz, Philipp Hemmati, Arnold Renate, Riess Hanno, le Coutre Philipp
We hereby report a case of acute myeloid leukemia with translocation t(2;3) and involvement of the ectopic virus integration site-1 (EVI1) gene. Like most other 3q26-related disorders reported thus far, we describe a phenotype with elevated platelet counts and dysmegakaryopoesis. The clinical course of our patient was complicated by symptomatic thrombophilia and chemoresistance. In addition, our case exhibited FLT3 (Fms-related tyrosine kinase 3) internal tandem duplication. Although anagrelide was successful in controlling elevated platelet counts, allogeneic stem cell transplantation failed to overcome chemoresistance due to simultaneous graft-versus-host-disease and relapse of acute myeloid leukemia...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334860/intravascular-large-b-cell-lymphoma-coexisting-with-an-ovarian-carcinoma
#11
Tomoko Uchiyama, Hirokazu Nakamine, Kohei Morita, Hiroe Itami, Tokiko Nakai, Masato Takano, Maiko Takeda, Kinta Hatakeyama, Junko Takahama, Yasuhito Tanase, Hiroshi Kobayashi, Chiho Ohbayashi
We report an incidental case of intravascular large B-cell lymphoma (IVLBCL) coexisting with an ovarian carcinoma in a 76-year-old woman. She visited our hospital with difficulty in defecation. Magnetic resonance imaging and computerized tomography scan revealed a solid and cystic mass probably arising from the left ovary. Gross examination of the tumor obtained by an exploratory surgery showed a solid area in a simple cyst. The ovarian tumor was diagnosed as a high-grade serous carcinoma (HGSC). Early in the post-operative course, this patient developed fever of unknown origin with central nervous system manifestations...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334859/composite-follicular-lymphoma-and-cd5-positive-nodal-marginal-zone-lymphoma
#12
Masashi Miyaoka, Tomoki Kikuchi, Joaquim Carreras, Yukie Yara Kikuti, Ken Omachi, Minoru Kojima, Kiyoshi Ando, Naoya Nakamura
Composite CD10-positive low-grade B-cell and CD5-positive low-grade B-cell lymphoma is extremely rare. We report a case of a composite follicular lymphoma (FL) and CD5-positive nodal marginal zone lymphoma (NMZL) in a resected inguinal lymph node of a 72-year-old Japanese male. Histologically, multiple follicles had reactive-germinal centers with tingible body macrophages, a thin mantle zone and a wide marginal zone. The wide marginal zone consisted of medium-sized cells having slightly indented nuclei and clear cytoplasm, indicating monocytoid cells with CD5-positive B-cells...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334858/dose-modified-ifosfamide-epirubicin-and-etoposide-is-a-safe-and-effective-salvage-therapy-with-high-peripheral-blood-stem-cell-mobilization-capacity-for-poorly-mobilized-hodgkin-s-lymphoma-and-non-hodgkin-s-lymphoma-patients
#13
Akiko Fukunaga, Mizuki Hyuga, Makoto Iwasaki, Yoshiki Nakae, Wataru Kishimoto, Yoshitomo Maesako, Nobuyoshi Arima
A dose modified ifosfamide, epirubicin, and etoposide (IVE) regimen was prospectively assessed for its efficacy in mobilizing peripheral blood stem cells for autologous transplantation. Two patients with Hodgkin's lymphoma and two with non-Hodgkin's lymphoma who were undergoing stem cell therapy were studied. All patients had a history of multiple treatments with insufficient stem cell mobilization. The dose modified IVE regimen consisted of ifosfamide 3 g/m(2) intravenously (IV) administered on days 1-2 in combination with epirubicin 50 mg/m(2) IV on day 1 and etoposide 200 mg/m(2) (100 mg/m(2) in two patients with complete remission) IV on days 1-3...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334857/retrospective-analysis-of-treatment-outcomes-and-geriatric-assessment-in-elderly-malignant-lymphoma-patients
#14
Yoshiko Naito, Hidenori Sasaki, Yasushi Takamatsu, Fumiaki Kiyomi, Kazuo Tamura
In recent years, the Comprehensive Geriatric Assessment (CGA), which is used in gerontology to assess functioning in elderly individuals, has been said to be useful in geriatric oncology. Therefore, we examined whether items in the CGA were associated with survival time in elderly patients with non-Hodgkin lymphoma (NHL). We conducted the CGA for 93 patients aged ≥ 65 years who had undergone treatment for NHL retrospectively. The CGA includes activities of daily living, instrumental activities of daily living, mood, cognition, nutrition, and the Charlson comorbidity index...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334856/clinical-features-and-treatment-outcomes-of-51-patients-with-chronic-myeloid-leukemia-treated-with-a-tyrosine-kinase-inhibitor-at-a-single-institution-from-2002-to-2014
#15
Noriaki Kawano, Shuro Yoshida, Sayaka Kawano, Takuro Kuriyama, Kiyoshi Yamashita, Hidenobu Ochiai, Kazuya Shimoda, Fumihiko Ishikawa, Akira Ueda, Ikuo Kikuchi
Although clinical trials of first- and second-generation tyrosine kinase inhibitors (TKIs) have been shown to improve the prognosis of chronic myeloid leukemia (CML), there is still uncertainty about the clinical features, treatment outcomes, adverse effects, and other possible problems of their use in the clinical setting. We retrospectively analyzed 51 CML patients treated with TKIs at a single institution between 2002 and 2014. The patients (median age: 53.8 years) were classified as having chronic (n = 48), accelerated (n = 2), or blastic phase (n = 1) CML...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334855/clinical-outcomes-after-allogeneic-stem-cell-transplantation-for-adult-lymphoblastic-lymphoma
#16
Shinichi Makita, Shigeo Fuji, Kuniko Takano, Takashi Tanaka, Yoshitaka Inoue, Reiko Ito, Ayumu Ito, Yoshiki Hayashi, Kinuko Tajima, Keiji Okinaka, Saiko Kurosawa, Sung-Won Kim, Takuya Yamashita, Ryuji Tanosaki, Kensei Tobinai, Takahiro Fukuda
Lymphoblastic lymphoma (LBL) is a rare subtype of non-Hodgkin lymphoma. There are limited reports on allogeneic stem cell transplantation (allo-SCT) in patients with LBL. We retrospectively analyzed the clinical outcomes of 15 adult patients with LBL who received allo-SCT at our institution. The median age at allo-SCT was 29 years (range, 18-42). Disease status at the time of transplantation was complete remission (CR), partial remission (PR), and advanced disease in 4, 4, and 7 patients, respectively. The median follow-up duration of survivors was 25 months (range, 6-106)...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334854/the-role-of-intracellular-signaling-pathways-in-the-pathogenesis-of-multiple-myeloma-and-novel-therapeutic-approaches
#17
Masahiro Kizaki, Takayuki Tabayashi
The introduction of novel agents, such as bortezomib, thalidomide, and lenalidomide, into daily practice has dramatically improved clinical outcomes and prolonged survival of patients with multiple myeloma (MM). However, despite these advanced clinical benefits, MM remains an incurable hematological malignancy. Therefore, development of new agents and novel therapeutic strategies is urgently needed. Recent advances toward understanding the mechanism of myeloma cell growth and drug resistance in the bone marrow milieu have provided clues for the development of next-generation agents aimed at improving patient outcomes...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/27334853/follicular-lymphoma-the-role-of-the-tumor-microenvironment-in-prognosis
#18
Takumi Sugimoto, Takashi Watanabe
The microenvironment of follicular lymphoma (FL) is composed of tumor-infiltrating CD8(+) T cells, follicular regulatory T cells, lymphoma-associated macrophages and mast cells, follicular helper T cells, follicular dendritic cells, and follicular reticular cells, all of which have been reported to have relevance in the prognosis of FL patients. In addition, some of these cells play a role in the histologic transformation of FL. Macrophages contribute to a poor prognosis in FL patients treated in the pre-rituximab era, but are associated with good prognosis in those treated in the rituximab era...
2016: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/26763368/coexistent-t-8-21-q22-q22-translocation-and-5q-deletion-in-acute-myeloid-leukemia
#19
REVIEW
Katsuya Yamamoto, Kimikazu Yakushijin, Yukinari Sanada, Shinichiro Kawamoto, Hiroshi Matsuoka, Hironobu Minami
The t(8;21)(q22;q22) translocation is specifically observed in acute myeloid leukemia (AML) M2 subtype, whereas del(5q) is one of the most common cytogenetic aberrations in myelodysplastic syndromes (MDS). Thus, t(8;21)(q22;q22) and del(5q) appear to be mutually exclusive, and the association between them has not been characterized yet. Here, we report an 81-year-old woman with coexistent t(8;21)(q22;q22) and del(5q) at initial diagnosis. The bone marrow was infiltrated with 18.4% myeloblasts, and showed marked myeloid and erythroid dysplasia...
2015: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/26763367/nodal-marginal-zone-large-b-cell-lymphoma-with-burkitt-translocation-and-complex-chromosomal-changes-associated-with-overexpression-of-bcl2-myc-and-bcl6
#20
Tomislav M Jelic, Tzong-Wen E Huang, Pauline Brenholz, Oscar C Estallila, Ahmed A Khalid, Tajana Juranovic, Todd J Kuenstner
We report the first case of a nodal marginal zone large B-cell lymphoma and the first with MYC rearrangement. This high proliferation rate lymphoma (40% of cells) occurred in the bilateral cervical, axillary, and para-aortic lymph nodes of an 82 year old woman. It involved extensively her bone marrow, and was lethal. Malignant B-cells were CD10 negative, harbored Burkitt translocation, and multiple chromosomal changes including trisomies of chromosomes 3 and 18, and three copies of 8q with an intact q24 cytoband (in addition to MYC rearrangement), associated with overexpression of BCL6, BCL2, and MYC respectively...
2015: Journal of Clinical and Experimental Hematopathology: JCEH
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