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splenic t lymphoma

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https://www.readbyqxmd.com/read/28507749/splenic-volume-differentiates-complicated-and-non-complicated-celiac-disease
#1
Tom van Gils, Petula Nijeboer, Jan Hein Tm van Waesberghe, Veerle Mh Coupé, Kiki Janssen, Jessy A Zegers, Shaikh A Nurmohamed, Georg Kraal, Sabine Ci Jiskoot, Gerd Bouma, Chris Jj Mulder
BACKGROUND: Studies in small groups of patients indicated that splenic volume (SV) may be decreased in patients with celiac disease (CD), refractory CD (RCD) type II and enteropathy-associated T-cell lymphoma (EATL). OBJECTIVE: The objective of this article is to evaluate SV in a large cohort of uncomplicated CD, RCD II and EATL patients and healthy controls. METHODS: The retrospective cohort consisted of 77 uncomplicated CD (of whom 39 in remission), 29 RCD II, 24 EATL and 12 patients with both RCD II and EATL...
April 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28411578/differential-effects-of-low-dose-fludarabine-or-5-fluorouracil-on-the-tumor-growth-and-myeloid-derived-immunosuppression-status-of-tumor-bearing-mice
#2
Manuchehr Abedi-Valugerdi, Wenyi Zheng, Fadwa Benkessou, Ying Zhao, Moustapha Hassan
Myeloid-derived suppressor cells (MDSCs) accumulate in tumor-bearing hosts and play a key role in the suppression of the innate and adaptive immunity. Chemotherapeutic strategies have been developed to deplete or deactivate MDSCs in different tumor models. The pyrimidine analog, 5-fluorouracil (5-FU) is found to reduce the tumor size by depleting MDSCs. Here, we asked whether the purine analog, fludarabine (Flu), could exert similar effects. Employing a lymphoma model, we demonstrated that in mice with advanced tumors (where MDSC-induced suppression was present), treatment with a single low-dose Flu (25, 50, 100mg/kg) elevated the numbers of splenic MDSCs and serum arginase activity, and simultaneously, increased the tumor growth (only the highest dose)...
April 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28235627/florid-splenic-gamma-delta-t-cell-proliferation-in-patients-with-splenomegaly-and-cytopenias-a-high-stakes-diagnostic-challenge
#3
Shanxiang Zhang, Michael G Bayerl
OBJECTIVES: Splenic gamma/delta T-cell proliferation is rare and correct diagnosis is critical for adequate clinical management. METHODS: Two splenectomy cases from patients with splenomegaly and cytopenias were studied by morphological evaluation, extensive immunophenotyping, FISH and molecular studies. The clinicopathologic findings were compared with splenic T gamma/delta neoplasia, notably hepatosplenic T-cell lymphoma (HSTL) and T-cell large granular lymphocytic leukemia (TLGL) of the variety T gamma/delta...
February 21, 2017: Human Pathology
https://www.readbyqxmd.com/read/28105889/splenic-marginal-zone-lymphoma-excellent-outcomes-in-64-patients-treated-in-the-rituximab-era
#4
Adam G Starr, Paolo F Caimi, PingFu Fu, Mira R Massoud, Howard Meyerson, Eric D Hsi, David B Mansur, Sheen Cherian, Brenda W Cooper, Marcos J G De Lima, Hillard M Lazarus, Stanton L Gerson, Deepa Jagadeesh, Mitchell R Smith, Robert M Dean, Brad L Pohlman, Brian T Hill, Basem M William
OBJECTIVES AND METHODS: Splenic marginal zone lymphoma (SMZL) is a rare non-Hodgkin lymphoma. We sought to identify prognostic factors and define outcomes in a cohort of 64 patients with SMZL who were treated at two large academic medical centers in North America in the rituximab era. RESULTS: Over a median follow-up of 37.8 (range 6-167.1) months, Kaplan-Meier estimate of median OS was 156.3 months and median PFS was 52.9 months. On univariate analysis, baseline hemoglobin <12 g/dl was associated with inferior OS (p = 0...
January 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28087391/clonal-cytogenetic-abnormalities-are-predictor-in-developing-non-hodgkin-lymphomas
#5
Ying Wang, Yi Xiao, Xiangyu Meng, Heng Zhang, Qinlu Li, Fankai Meng, Lifang Huang, Chunrui Li, Jianfeng Zhou
Pathological analysis is the cornerstone for diagnosing malignant lymphoma. Status of cytogenetic abnormalities is frequently left unexamined if no evidence of malignancy is found in pathological analysis. In this study, we presented 3 cases in which clonal cytogenetic abnormalities were detected but morphological alterations of the same tissue did not support malignant non Hodgkin lymphoma at the first lymph node biopsy. Case 1 is a 55-year-old female with lymphadenopathy neoplastic process confirmed by flow cytometry and polymerase chain reaction (PCR)...
January 11, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28018857/murine-models-of-splenic-marginal-zone-lymphoma-a-role-for-cav1
#6
REVIEW
Chelsey L Patten, Christine E Cutucache
Dozens of murine models of indolent and aggressive B-cell lymphomas have been generated to date. These include those manifesting chronic lymphocytic leukemia (CLL), diffuse large B-cell lymphoma (DLBCL), as well as xenografts of mantle cell lymphoma (MCL). These models have led to an improved understanding of disease etiology, B-cell biology, immunomodulation, and the importance of the tumor microenvironment. Despite these efforts in CLL, DLBCL, and MCL, considerably little progress toward a model of splenic marginal zone lymphoma (SMZL) has been accomplished...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27834940/high-prevalence-of-viral-hepatitis-in-a-series-of-splenic-marginal-zone-lymphomas-from-romania
#7
B Fetica, B Pop, M L Blaga, A Fulop, D Dima, M T Zdrenghea, C I Vlad, A S Bojan, P Achimas-Cadariu, C I Lisencu, A Irimie, D D Weisenburger
No abstract text is available yet for this article.
November 11, 2016: Blood Cancer Journal
https://www.readbyqxmd.com/read/27824644/rapid-fatal-acute-peripheral-t-cell-lymphoma-associated-with-igg-plasma-cell-leukemia-and-iga-hypergammaglobulinemia
#8
Nives Jonjić, Irena Seili Bekafigo, Dora Fučkar Čupić, Ksenija Lučin, Antica Duletić Načinović, Toni Valković
Simultaneous occurrence of T-cell and B-cell neoplasms is rare, and etiologic relationships between these 2 malignancies are poorly understood. We describe the case of a 66-year-old woman who was admitted to the hospital because of fever, hemoptysis, lymphadenopathy, and skin rash. Enlarged lymph nodes in axillary, pectoral, paratracheal, and periportal regions as well as slight hepatomegaly and splenomegaly were confirmed. A peripheral blood smear revealed rouleaux formation and numerous circulating plasma cells, with plasmacytoid lymphocytes...
November 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27670424/frequent-nfkbie-deletions-are-associated-with-poor-outcome-in-primary-mediastinal-b-cell-lymphoma
#9
Larry Mansouri, Daniel Noerenberg, Emma Young, Elena Mylonas, Maysaa Abdulla, Mareike Frick, Fazila Asmar, Viktor Ljungström, Markus Schneider, Kenichi Yoshida, Aron Skaftason, Tatjana Pandzic, Blanca Gonzalez, Anna Tasidou, Nils Waldhueter, Alfredo Rivas-Delgado, Maria Angelopoulou, Marita Ziepert, Christopher Maximilian Arends, Lucile Couronné, Dido Lenze, Claudia D Baldus, Christian Bastard, Jessica Okosun, Jude Fitzgibbon, Bernd Dörken, Hans G Drexler, Damien Roos-Weil, Clemens A Schmitt, Helga D Munch-Petersen, Thorsten Zenz, Martin-Leo Hansmann, Jonathan C Strefford, Gunilla Enblad, Olivier A Bernard, Elisabeth Ralfkiaer, Martin Erlanson, Penelope Korkolopoulou, Magnus Hultdin, Theodora Papadaki, Kirsten Grønbæk, Armando Lopez-Guillermo, Seishi Ogawa, Ralf Küppers, Kostas Stamatopoulos, Niki Stavroyianni, George Kanellis, Andreas Rosenwald, Elias Campo, Rose-Marie Amini, German Ott, Theodoros P Vassilakopoulos, Michael Hummel, Richard Rosenquist, Frederik Damm
We recently reported a truncating deletion in the NFKBIE gene, which encodes IκBε, a negative feedback regulator of NF-κB, in clinically aggressive chronic lymphocytic leukemia (CLL). Because preliminary data indicate enrichment of NFKBIE aberrations in other lymphoid malignancies, we screened a large patient cohort (n = 1460) diagnosed with different lymphoid neoplasms. While NFKBIE deletions were infrequent in follicular lymphoma, splenic marginal zone lymphoma, and T-cell acute lymphoblastic leukemia (<2%), slightly higher frequencies were seen in diffuse large B-cell lymphoma, mantle cell lymphoma, and primary central nervous system lymphoma (3% to 4%)...
December 8, 2016: Blood
https://www.readbyqxmd.com/read/27666766/immunohistochemical-analysis-of-the-novel-marginal-zone-b-cell-marker-irta1-in-malignant-lymphoma
#10
Jun-Ichiro Ikeda, Masaharu Kohara, Yoko Tsuruta, Satoshi Nojima, Shinichiro Tahara, Kenji Ohshima, Masako Kurashige, Naoki Wada, Eiichi Morii
Marginal zone lymphoma (MZL) is a low-grade B-cell lymphoma derived from marginal zone B cells. Because of a lack of specific immunohistochemical markers, MZL is mainly diagnosed based on the cytological appearance and growth pattern of the tumor. Marginal zone B cells were recently shown to selectively express immunoglobulin superfamily receptor translocation-associated 1 (IRTA1), but the antibody used in that study is not commercially available. We therefore investigated the IRTA1 expression in nonneoplastic lymphoid tissues and 261 malignant lymphomas, examining the ability of a commercially available antibody to accurately diagnose MZL...
January 2017: Human Pathology
https://www.readbyqxmd.com/read/27524795/differences-in-tfh-cell-response-between-the-graft-and-spleen-with-chronic-allograft-nephropathy
#11
Jian Shi, Xianlin Xu, Fengbao Luo, Qianqian Shi, Xiaozhou He, Ying Xia
The aim of this study was to investigate follicular helper T (Tfh) cell response and its difference between renal graft and spleen in a rat renal transplantation model undergoing chronic allograft nephropathy (CAN). Orthotopical kidney transplantations were performed on Fischer (F344) rats and transplanted to Lewis rats, using syngeneic Lewis-Lewis grafts as controls. Tissue samples were collected at 8 weeks post-transplantation. The status of Tfh cell response was assessed by measuring the levels of transcription factor B-cell lymphoma 6 (Bcl-6), interleukin 21 (IL-21), chemokine receptor type 5 (CXCR5), and B cell activating factor belonging to the TNF family (BAFF)...
August 12, 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27436361/rock2-signaling-is-required-to-induce-a-subset-of-t-follicular-helper-cells-through-opposing-effects-on-stats-in-autoimmune-settings
#12
Jonathan M Weiss, Wei Chen, Melanie S Nyuydzefe, Alissa Trzeciak, Ryan Flynn, James R Tonra, Suzana Marusic, Bruce R Blazar, Samuel D Waksal, Alexandra Zanin-Zhorov
Rho-associated kinase 2 (ROCK2) determines the balance between human T helper 17 (TH17) cells and regulatory T (Treg) cells. We investigated its role in the generation of T follicular helper (TFH) cells, which help to generate antibody-producing B cells under normal and autoimmune conditions. Inhibiting ROCK2 in normal human T cells or peripheral blood mononuclear cells from patients with active systemic lupus erythematosus (SLE) decreased the number and function of TFH cells induced by activation ex vivo. Moreover, inhibition of ROCK2 activity decreased the abundance of the transcriptional regulator Bcl6 (B cell lymphoma 6) and increased that of Blimp1 by reducing the binding of signal transducer and activator of transcription 3 (STAT3) and increasing that of STAT5 to the promoters of the genes Bcl6 and PRDM1, respectively...
July 19, 2016: Science Signaling
https://www.readbyqxmd.com/read/27315386/bilateral-uveitis-and-hyphema-in-a-catalina-macaw-ara-ararauna-%C3%A3-ara-macao-with-multicentric-lymphoma
#13
Jennifer C Hausmann, Christoph Mans, Allyson Gosling, Jaimie L Miller, Tamara Chamberlin, John R Dunn, Paul E Miller, Kurt K Sladky
A 20-year-old, female Catalina macaw (Ara ararauna × Ara macao ) was presented with bilateral uveitis and hyphema. The hyphema initially improved with 0.12% prednisolone acetate ophthalmic drops (1 drop OU q4h for 7 days), but the hyphema recurred after the drops were tapered. The bird subsequently developed inappetance, weight loss, regurgitation, and lethargy and was euthanatized 24 days after initial presentation. Necropsy revealed marked splenomegaly and hepatomegaly, with significant mucosal ulcerations of the proventriculus and petechiation associated with both kidneys...
June 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/27257458/acute-tumor-lysis-syndrome-after-proximal-splenic-artery-embolization
#14
Jason T Salsamendi, Mehul H Doshi, Francisco J Gortes, Joe U Levi, Govindarajan Narayanan
Preoperative splenic artery embolization for massive splenomegaly has been shown to reduce intraoperative hemorrhage during splenectomy. We describe a case of tumor lysis syndrome after proximal splenic artery embolization in a patient with advanced mantle cell lymphoma and splenic involvement. The patient presented initially with hyperkalemia two days after embolization that worsened during splenectomy. He was stabilized, but developed laboratory tumor lysis syndrome with renal failure and expired. High clinical suspicion of tumor lysis syndrome in this setting is advised...
June 2016: Radiology case reports
https://www.readbyqxmd.com/read/27241147/-pathologic-characteristics-of-bone-marrow-for-%C3%A2-cd5-positive-small-b-cell-lymphoma
#15
Shusong Peng, Fuqiang Zhu, Sijing You, Minna Gong, Zhonglian Wen
OBJECTIVE: To study the pathologic characteristics of bone marrow for CD5 positive small B cell lymphoma (SBL).
 METHODS: The pathologic profiles of 92 patients with CD5 positive SBL were retrospectively analyzed. The morphologic and immunophenotypic features were analyzed by flow cytometry and immunohistochemistry. IgH/CCND1 was examined by fluorescence in situ hybridization (FISH).
 RESULTS: A total of 92 patients with CD5 positive SBL were enrolled in this study, including 56 (60...
April 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/27131623/a-single-center-experience-in-splenic-diffuse-red-pulp-lymphoma-diagnosis
#16
REVIEW
Hunan L Julhakyan, L S Al-Radi, T N Moiseeva, K I Danishyan, A M Kovrigina, S M Glebova, S A Lugovskaya, V N Dvirnik, A N Khvastunova, I A Yakutik, V G Savchenko
The World Health Organization 2008 classification highlighted a new nosology-splenic diffuse red pulp lymphoma (SDRPL) with clinical and laboratory features similar to both splenic marginal zone lymphoma and hairy cell leukemia (HCL) and variant form of HCL. Experience of hematologists on the diagnosis and differential diagnosis of SDRPL is extremely limited. The aim of our report was to characterize the clinical and immunomorphologic features of SDRPL on our own observations. During 2013-2014, in National Research Center for Hematology, 87 spleen specimens removed from various B-cell lymphomas were analyzed...
August 2016: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/27121112/genetic-aberrations-in-small-b-cell-lymphomas-and-leukemias-molecular-pathology-clinical-relevance-and-therapeutic-targets
#17
Agata M Bogusz, Adam Bagg
Small B-cell lymphomas and leukemias (SBCLs) are a clinically, morphologically, immunophenotypically and genetically heterogeneous group of clonal lymphoid neoplasms, including entities such as chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), mantle cell lymphoma (MCL), follicular lymphoma (FL), lymphoplasmacytic lymphoma (LPL), marginal zone lymphoma (MZL) and hairy cell leukemia (HCL). The pathogenesis of some of these lymphoid malignancies is characterized by distinct translocations, for example t(11;14) in the majority of cases of MCL and t(14;18) in most cases of FL, whereas other entities are associated with a variety of recurrent but nonspecific numeric chromosomal abnormalities, as exemplified by del(13q14), del(11q22), and +12 in CLL, and yet others such as LPL and HCL that lack recurrent or specific cytogenetic aberrations...
September 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27094004/-advances-in-molecular-genetics-pathogenesis-of-splenic-marginal-zone-lymphoma
#18
Yuting Yan, Shuhua Yi, Lugui Qiu
No abstract text is available yet for this article.
April 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/27070164/-experience-in-investigating-splenic-red-pulp-lymphoma
#19
L S Al'-Radi, T N Moiseeva, U L Dzhulakyan, K I Danishyan, A M Kovrigina, S M Glebova, S A Lugovskaya, V N Dvirnyk, A N Khvastunova, I A Yakutik, V G Savchenko
AIM: To generalize hematologists' experience of the diagnosis and differential diagnosis of splenic red pulp lymphoma (SRPL). MATERIAL AND METHODS: Eighty-seven splenic biopsy specimens taken from patients with different B-cell lymphoproliferative diseases were examined in the Hematology Research Center in 2013-2014. The diagnosis of SRPL was based on the morphological, immunohistochemical, immunophenotypic, and molecular examinations of the splenic biopsy specimens, blood and bone marrow (BM) tests in 4 (4...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/27017557/rituximab-in-a-patient-with-splenic-marginal-zone-lymphoma-and-acquired-angioedema
#20
Megan S Motosue, Matthew T Howard, Joseph H Butterfield
No abstract text is available yet for this article.
May 2016: Annals of Allergy, Asthma & Immunology
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