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Follicular lymphoma

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https://www.readbyqxmd.com/read/28640838/next-generation-sequencing-of-the-clonal-igh-rearrangement-detects-ongoing-mutations-and-interfollicular-trafficking-in-in-situ-follicular-neoplasia
#1
Perikles Kosmidis, Irina Bonzheim, Claudia Dufke, Sema Colak, Thomas Hentrich, Christopher Schroeder, Peter Bauer, Patrick Adam, Falko Fend
Follicular lymphoma (FL) is characterized genetically by a significant intraclonal diversity of rearranged immunoglobulin heavy chain (IGH) genes and a substantial cell migration activity (follicular trafficking). Recently, in situ follicular neoplasia (ISFN), characterized by accumulations of immunohistochemically strongly BCL2-positive, t(14;18)+ clonal B cells confined to germinal centers in reactive lymph nodes, has been identified as a precursor lesion of FL with low risk of progression to manifest FL...
2017: PloS One
https://www.readbyqxmd.com/read/28633365/phase-ii-study-of-copanlisib-a-pi3k-inhibitor-in-relapsed-or-refractory-indolent-or-aggressive-lymphoma
#2
M Dreyling, F Morschhauser, K Bouabdallah, D Bron, D Cunningham, S E Assouline, G Verhoef, K Linton, C Thieblemont, U Vitolo, F Hiemeyer, M Giurescu, J Garcia-Vargas, I Gorbatchevsky, L Liu, K Koechert, C Peña, M Neves, B H Childs, P L Zinzani
Background: Copanlisib is a pan-class I phosphatidylinositol 3-kinase (PI3K) inhibitor with predominant activity against the α- and δ- isoforms. Patients and methods: This phase II study evaluated the response rate of copanlisib administered intravenously on days 1, 8, and 15 of a 28-day cycle, in patients with indolent or aggressive malignant lymphoma. Archival tumor tissues were used for immunohistochemistry, gene-expression profiling, and mutation analysis...
June 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28633038/hematopoietic-cell-transplantation-for-diffuse-large-b-cell-and-follicular-lymphoma-current-controversies-and-advances
#3
REVIEW
Narendranath Epperla, Mehdi Hamadani
Non-Hodgkin's lymphoma (NHL) constitutes a collection of lymphoproliferative disorders with diverse biologic, histologic, and clinical features. With a better understanding of the molecular pathogenesis, recently there have been major advances in the treatment of NHLs including addition of novel monoclonal antibodies, targeted therapies, and immune activators to the therapy armamentarium. Despite these remarkable developments, autologous hematopoietic cell transplantation (auto-HCT) remains not only a standard-of-care curative option for aggressive NHL but also an important therapeutic option for indolent NHL...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28631651/follicular-variant-of-peripheral-t-cell-lymphoma
#4
Archana Lakshmanan, S Annapurneswari, Sheila Nair
Globally, peripheral T-cell lymphomas (PTCLs) constitute about 12% of all non-Hodgkin lymphomas, of which the unspecified category is the most common subtype (30%). Mostly, the unspecified category shows a diffuse pattern of involvement in the lymph nodes. However, rarely, they may show a follicular/nodular pattern mimicking a follicular lymphoma. We report a case of a follicular variant of PTCL, not otherwise specified. This case displayed a striking nodular/follicular pattern with an admixture of small (centrocyte-like) and large (centroblast-like) cells, thus mimicking a follicular lymphoma...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28631441/genetic-landscape-and-deregulated-pathways-in-b-cell-lymphoid-malignancies
#5
R Rosenquist, S Beà, M-Q Du, B Nadel, Q Pan-Hammarström
With the introduction of next-generation sequencing, the genetic landscape of the complex group of B-cell lymphoid malignancies has rapidly been unravelled in recent years. This has provided important information about recurrent genetic events and identified key pathways deregulated in each lymphoma subtype. In parallel, there has been intense search and development of novel types of targeted therapy that 'hit' central mechanisms in lymphoma pathobiology, such as BTK, PI3K or BCL2 inhibitors. In this review, we will outline the current view of the genetic landscape of selected entities: follicular lymphoma, diffuse large B-cell lymphoma, mantle cell lymphoma, chronic lymphocytic leukaemia and marginal zone lymphoma...
June 20, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28630229/observing-clonal-dynamics-across-spatiotemporal-axes-a-prelude-to-quantitative-fitness-models-for-cancer
#6
Andrew W McPherson, Fong Chun Chan, Sohrab P Shah
The ability to accurately model evolutionary dynamics in cancer would allow for prediction of progression and response to therapy. As a prelude to quantitative understanding of evolutionary dynamics, researchers must gather observations of in vivo tumor evolution. High-throughput genome sequencing now provides the means to profile the mutational content of evolving tumor clones from patient biopsies. Together with the development of models of tumor evolution, reconstructing evolutionary histories of individual tumors generates hypotheses about the dynamics of evolution that produced the observed clones...
June 19, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28628883/pros-and-cons-of-rituximab-maintenance-in-follicular-lymphoma
#7
REVIEW
Lu Zhang, Michele Ghielmini, Bruce D Cheson, Chaitra Ujjani
Follicular lymphoma (FL) is the most prevalent indolent non-Hodgkin lymphoma. Most patients present with advanced disease and are incurable with current therapy. The approval of rituximab has revolutionized the treatment of follicular lymphoma when administered in the induction setting for high-tumor burden disease, but the use of rituximab as a maintenance therapy (MR) continues to be a point of controversy. In this article, we review the main data and arguments in favor and against MR in FL. In summary, most studies have demonstrated a significant benefit in progression-free or event-free survival in this notoriously recurrent disease; however, long-term outcomes could not consistently demonstrate to be improved with this intervention...
June 16, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28622762/the-dose-response-relationship-between-tobacco-smoking-and-the-risk-of-lymphomas-a-case-control-study
#8
Martina Taborelli, Maurizio Montella, Massimo Libra, Rosamaria Tedeschi, Anna Crispo, Maria Grimaldi, Luigino Dal Maso, Diego Serraino, Jerry Polesel
BACKGROUND: Previous studies have provided limited support to the association between tobacco smoking and lymphomas with weak evidence of a dose-response relationship. METHODS: We investigated the relationship between tobacco smoking and risk of non-Hodgkin lymphomas (NHL) and Hodgkin lymphomas (HL) through logistic regression spline models. Data were derived from an Italian hospital-based case-control study (1999-2014), which enrolled 571 NHLs, 188 HLs, and 1004 cancer-free controls...
June 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28618063/papillary-thyroid-carcinoma-expressing-cd20
#9
Yuya Sasaki, Masao Seto, Hiroaki Miyoshi, Shinya Okada, Shintaro Yokoyama, Akira Ohshima, Koichi Ohshima
We identified a case of lymphadenopathy of metastatic papillary thyroid carcinoma (PTC) with CD20 expression, which was also expressed by the primary tumor. CD20 expression was identified using immunohistochemistry (IHC) in metastatic PTC biopsy samples from a 58-year-old woman. CD20 expression was initially determined using a CD20-recognizing L26 clone. To validate this phenomenon, we performed IHC with another antibody that recognizes the N-terminus of CD20 and fluorescent double staining using anti-TTF-1 and anti-CD20 antibodies...
June 15, 2017: Pathology International
https://www.readbyqxmd.com/read/28615538/expression-of-lag-3-defines-exhaustion-of-intratumoral-pd-1-t-cells-and-correlates-with-poor-outcome-in-follicular-lymphoma
#10
Zhi-Zhang Yang, Hyo Jin Kim, Jose C Villasboas, Ya-Ping Chen, Tammy Price-Troska, Shahrzad Jalali, Mara Wilson, Anne J Novak, Stephen M Ansell
Exhausted T-cells in follicular lymphoma (FL) typically express PD-1, but expression of PD-1 is not limited to exhausted cells. Although expected to be functionally suppressed, we found that the population of intratumoral PD-1+ T cells were predominantly responsible for production of cytokines and granules. This surprising finding prompted us to explore the involvement of LAG-3 to specifically identify functionally exhausted T cells. We found that LAG-3 was expressed on a subset of intratumoral T cells from FL and LAG-3+ T cells almost exclusively came from PD-1+ population...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28612129/coffee-consumption-and-risk-of-non-hodgkin-s-lymphoma-evidence-from-the-italian-multicentre-case-control-study
#11
Stefano Parodi, Franco Domenico Merlo, Emanuele Stagnaro
PURPOSE: Several investigations have analysed the association between coffee intake and risk of cancer. Contradictory results were reported by the studies conducted in non-Hodgkin's lymphomas (NHL) few of which report results according to main NHL subgroups. The present study is aimed at evaluating the association between coffee consumption and the risk of NHL by analysing data from a large Italian multicentre case-control study that included 1,418 interviewed cases (1,301 B cell and 117 T cell NHL), diagnosed between 1990 and 1993, and 1,774 population healthy controls...
June 13, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28611626/angioimmunoblastic-t-cell-lymphoma-mimicking-drug-reaction-with-eosinophilia-and-systemic-symptoms-dress-syndrome
#12
Joanna Mangana, Emmanuella Guenova, Katrin Kerl, Mirjana Urosevic-Maiwald, Valerie C Amann, Cornelia Bayard, Reinhard Dummer, Lars E French
Angioimmunoblastic T-cell lymphoma (AITCL) is a rare, aggressive lymphoma which derives from follicular helper T cells, commonly affecting the elderly population. It accounts for 2% of all non-Hodgkin lymphomas, with a reported 5-year overall survival rate of less than 30%. Very often, the clinical picture of AITCL encompasses systemic symptoms such as generalized lymphadenopathy, hepatosplenomegaly, skin rash, anemia, and polyclonal hypergammaglobulinemia. Here we report on the case of a female patient who presented with clinical features resembling drug reaction with eosinophilia and systemic symptoms (DRESS syndrome) prior to the definitive diagnosis of AITCL...
January 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28611188/new-quantitative-features-for-the-morphological-differentiation-of-abnormal-lymphoid-cell-images-from-peripheral-blood
#13
Laura Puigví, Anna Merino, Santiago Alférez, Andrea Acevedo, José Rodellar
AIMS: This work aims to propose a set of quantitative features through digital image analysis for significant morphological qualitative features of different cells for an objective discrimination among reactive, abnormal and blast lymphoid cells. METHODS: Abnormal lymphoid cells circulating in peripheral blood in chronic lymphocytic leukaemia, B-prolymphocytic leukaemia, hairy cell leukaemia, splenic marginal zone lymphoma, mantle cell lymphoma, follicular lymphoma, T-prolymphocytic leukaemia, T large granular lymphocytic leukaemia and Sézary syndrome, normal, reactive and blast lymphoid cells were included...
June 13, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28610909/rip1-has-a-role-in-cd40-mediated-apoptosis-in-human-follicular-lymphoma-cells
#14
Jemal Adem, Mine Eray, Jonna Eeva, Ulla Nuutinen, Jukka Pelkonen
CD40 is a cell surface receptor which belongs to tumor necrosis factor receptor (TNFR) family members. It transmits signals that regulate diverse cellular responses such as proliferation, differentiation, adhesion molecule expression and apoptosis. Unlike other TNFR family members (TRAIL-R, Fas-R and TNFR1), the CD40 cytoplasmic tail lacks death domain. However, CD40 is capable of inducing apoptosis in different types of cancer cells including lymphoma. The apoptotic effect of CD40 is linked to the involvement of Fas, TRAIL or receptor interacting protein 1 (RIP1) kinase...
June 10, 2017: Immunobiology
https://www.readbyqxmd.com/read/28608996/prognostic-value-of-event-free-survival-at-12-and-24-months-and-long-term-mortality-for-non-hodgkin-follicular-lymphoma-patients-a-study-report-from-the-spanish-lymphoma-oncology-group
#15
Mariano Provencio, Ana Royuela, María Torrente, Marina Pollán, José Gómez-Codina, Pilar Sabín, Marta Llanos, Josep Gumá, Cristina Quero, Ana Blasco, David Aguiar, Francisco Ramón García-Arroyo, Javier Lavernia, Natividad Martínez, Manuel Morales, Álvaro Saenz-Cusi, Delvys Rodríguez, Virginia Calvo, Luis de la Cruz-Merino, Miguel Ángel de la Cruz, Antonio Rueda
BACKGROUND: Relatively few studies have analyzed the mortality of follicular lymphoma (FL) patients in comparison with a sex- and age-matched general population. This study analyzed the overall survival (OS) of patients with FL and compared their survival with the expected survival of a general population. METHODS: Patients diagnosed with FL were prospectively enrolled from 1980 to 2013. Standardized mortality ratios (SMRs) were obtained from yearly sex- and age-specific mortality rates in Spain, and OS was compared with age- and sex-matched general population data...
June 13, 2017: Cancer
https://www.readbyqxmd.com/read/28607806/significance-of-stromal-1-and-stromal-2-signatures-and-biologic-prognostic-model-in-diffuse-large-b-cell-lymphoma
#16
Asmaa Gaber Abdou, Nancy Asaad, Mona Kandil, Mohammed Shabaan, Asmaa Shams
OBJECTIVE: : Diffuse Large B Cell Lymphoma (DLBCL) is a heterogeneous group of tumors with different biological and clinical characteristics that have diverse clinical outcomes and response to therapy. Stromal-1 signature of tumor microenvironment of DLBCL represents extracellular matrix deposition and histiocytic infiltrate, whereas stromal-2 represents angiogenesis that could affect tumor progression. METHODS: : The aim of the present study is to assess the significance of stromal-1 signature using SPARC-1 and stromal-2 signature using CD31 expression and then finally to construct biologic prognostic model (BPM) in 60 cases of DLBCL via immunohistochemistry...
May 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28604477/multicenter-comparison-of-contrast-enhanced-fdg-pet-ct-and-64-slice-multi-detector-row-ct-for-initial-staging-and-response-evaluation-at-the-end-of-treatment-in-patients-with-lymphoma
#17
Nieves Gómez León, Roberto C Delgado-Bolton, Lourdes Del Campo Del Val, Beatriz Cabezas, Reyes Arranz, Marta García, Jimena Cannata, Saturnino González Ortega, Mª Ángeles Pérez Sáez, Begoña López-Botet, Beatriz Rodríguez-Vigil, Marta Mateo, Patrick M Colletti, Domenico Rubello, José L Carreras
OBJECTIVES: To compare staging correctness between contrast-enhanced FDG PET/ceCT and 64-slice multi-detector-row CT (ceCT64) for initial staging and response evaluation at the end of treatment (EOT) in patients with Hodgkin lymphoma, diffuse large B cell lymphoma (DLBCL), and follicular lymphoma. METHODS: This prospective study compared initial staging and response evaluation at EOT. One hundred eighty-one patients were randomly assigned to either ceCT64 or FDG PET/ceCT...
June 9, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28600336/diagnosis-and-classification-of-hematologic-malignancies-on-the-basis-of-genetics
#18
Justin Taylor, Wenbin Xiao, Omar Abdel-Wahab
Genomic analysis has greatly influenced the diagnosis and clinical management of patients affected by diverse forms of hematologic malignancies. Here we review how genetic alterations define subclasses of patients with acute leukemias, myelodysplastic syndromes (MDS), myeloproliferative neoplasms (MPNs), non-Hodgkin lymphomas and classical Hodgkin lymphoma. These include new subtypes of acute myeloid leukemia defined by mutations in RUNX1 or BCR-ABL1 translocations as well as a constellation of somatic structural DNA alterations in acute lymphoblastic leukemia...
June 9, 2017: Blood
https://www.readbyqxmd.com/read/28594133/diagnostic-value-of-stmn1-lmo2-hgal-aid-expression-and-1p36-chromosomal-abnormalities-in-primary-cutaneous-b-cell-lymphomas
#19
Evelyne Verdanet, Olivier Dereure, Céline René, Ariane Tempier, Assia Benammar-Hafidi, Mathieu Gallo, Eric Frouin, Luc Durand, Isabelle Gazagne, Valérie Costes-Martineau, Valère Cacheux, Vanessa Szablewski
INTRODUCTION: distinction between primary cutaneous follicular lymphoma (PCFL) and primary cutaneous marginal zone lymphoma (PCMZL) is challenging as clear-cut immunophenotypic and cytogenetic criteria to segregate both entities are lacking. MATERIALS AND METHODS: to better characterize PCFL and PCMZL and to define criteria helpful for the differential diagnosis, we compared expression of immunohistochemical markers (LMO2, HGAL, STMN1, AID, MNDA) and the presence of cytogenetic abnormalities previously described in nodal follicular lymphoma (BCL2 and BCL6 breaks, 1p36 chromosomal region deletion (del 1p36)) in a series of 48 cutaneous follicular and marginal zone lymphomas (CFL and CMZL)...
June 8, 2017: Histopathology
https://www.readbyqxmd.com/read/28588814/coincidence-of-follicular-lymphoma-and-hurtle-cell-thyroid-carcinoma-in-a-patient-at-presentation-which-one-is-the-source-of-bone-metastasis-case-report-and-review-of-the-literature
#20
Hasan Atilla Ozkan, Arda Akoluk, Turhan Ozler, Isin Dogan Ekici, Nalan Alan Selcuk
Thyroid incidentaloma is defined as a new identified thyroid lesion occasionally detected during imaging studies. Incidence of thyroid incidentalomas is relatively rare in patients with lymphoma. Because of high rate of malignancy, these lesions with high intensity focal (18) FDG uptake detected on positron emission tomography with computed tomography (PET/CT) should undergo to biopsy regardless of size.
June 2017: Clinical Case Reports
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