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Peripheral T cell lymphoma

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https://www.readbyqxmd.com/read/29143824/pd-1-is-a-haploinsufficient-suppressor-of-t-cell-lymphomagenesis
#1
Tim Wartewig, Zsuzsanna Kurgyis, Selina Keppler, Konstanze Pechloff, Erik Hameister, Rupert Öllinger, Roman Maresch, Thorsten Buch, Katja Steiger, Christof Winter, Roland Rad, Jürgen Ruland
T cell non-Hodgkin lymphomas are a heterogeneous group of highly aggressive malignancies with poor clinical outcomes. T cell lymphomas originate from peripheral T cells and are frequently characterized by genetic gain-of-function variants in T cell receptor (TCR) signalling molecules. Although these oncogenic alterations are thought to drive TCR pathways to induce chronic proliferation and cell survival programmes, it remains unclear whether T cells contain tumour suppressors that can counteract these events...
November 15, 2017: Nature
https://www.readbyqxmd.com/read/29141948/a-phase-i-study-of-romidepsin-and-pralatrexate-reveals-marked-activity-in-relapsed-and-refractory-t-cell-lymphoma
#2
Jennifer E Amengual, Renee Lichtenstein, Jennifer Lue, Ahmed Sawas, Changchun Deng, Emily Lichtenstein, Karen Khan, Laine Atkins, Aishling Rada, Hye A Kim, Codruta Chiuzan, Matko Kalac, Enrica Marchi, Lorenzo Falchi, Mark A Francescone, Lawrence Schwartz, Serge Cremers, Owen A O'Connor
The peripheral T-cell lymphomas (PTCL) are a group of rare malignancies characterized by chemotherapy insensitivity and poor prognosis. Romidepsin and pralatrexate were approved by the U.S. FDA for patients with relapsed/refractory PTCL, exhibiting response rates of 25% and 29% respectively. Based on synergy of the combination in preclinical models of PTCL, we initiated a phase I study of pralatrexate plus romidepsin in patients with relapsed/refractory lymphoma (ClinicalTrials.gov (NCT01947140)). This was a single institution dose-escalation phase I study of pralatrexate plus romidepsin designed to determine the dose limiting toxicities (DLT), maximum tolerated dose (MTD), pharmacokinetic profile and response rates...
November 15, 2017: Blood
https://www.readbyqxmd.com/read/29140757/new-insights-into-lymphoma-pathogenesis
#3
Kojo S J Elenitoba-Johnson, Megan S Lim
Lymphomas represent clonal proliferations of lymphocytes that are broadly classified based upon their maturity (peripheral or mature versus precursor) and lineage (B cell, T cell, and natural killer cell). Insights into the pathogenetic mechanisms involved in lymphoma impact the classification of lymphoma and have significant implications for the diagnosis and clinical management of patients. Serial scientific and technologic advances over the last 30 years in immunology, cytogenetics, molecular biology, gene expression profiling, mass spectrometry-based proteomics, and, more recently, next-generation sequencing have contributed to greatly enhance our understanding of the pathogenetic mechanisms in lymphoma...
November 15, 2017: Annual Review of Pathology
https://www.readbyqxmd.com/read/29136691/-tumors-of-lymphoid-and-hematopoietic-tissue-of-spleen-a-clinicopathologic-analysis-of-53-cases
#4
D B Chen, D H Shen, H Zhang, Y Wang, Q J Song, S M Yang, X Z Fang
Objective: To study the clinicopathologic features, diagnosis and differential diagnosis of the tumors of lymphoidand hematopoietic tissue of the spleen(TLTS). Methods: Fifty-three cases of TLTS were selected from the pathologic files from Peking University People's Hospital from April 2002 to April 2017. According to WHO classification of tumors of hematopoietic and lymphoid tissues (2008) and its updated classification (2016), the cases were studied by microscopy, immunohistochemistry and in situ hybridization, combined with the bone marrow biopsy and clinical examination...
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29127587/copanlisib-first-global-approval
#5
Anthony Markham
Bayer are developing copanlisib (Aliqopa™)-a pan-class I phosphoinositide 3-kinase (PI3K) inhibitor-as a treatment for various haematological and solid malignancies. The US FDA has granted copanlisib accelerated approval for the treatment of adults with relapsed follicular lymphoma who have received at least two prior systemic therapies based on the results of a phase II trial. Phase III trials are underway evaluating copanlisib as treatment for relapsed/refractory diffuse large B-cell lymphoma and in combination with rituximab or rituximab-based chemotherapy or standard immunochemotherapy in patients with relapsed indolent B-cell non-Hodgkin's lymphoma...
November 10, 2017: Drugs
https://www.readbyqxmd.com/read/29122656/programmed-death-1-ligands-pd-l1-and-pd-l2-show-distinctive-and-restricted-patterns-of-expression-in-lymphoma-subtypes
#6
Poonam K Panjwani, Vivek Charu, Monique DeLisser, Hernan Molina-Kirsch, Yasodha Natkunam, Shuchun Zhao
The success of immunotherapy using immune checkpoint blockade in solid tumors and in relapsed/refractory classical Hodgkin lymphoma and chronic lymphocytic leukemia holds promise for targeted therapy in hematologic malignancies. Since efficacy of immunomodulatory therapy is correlated with numbers of cells that express programmed death (PD-1) ligands, we evaluated the expression of PD-L1 and PD-L2 proteins using immunohistochemistry in over 702 diagnostic lymphoma biopsies. In classical Hodgkin lymphoma, PD-L1 and PD-L2 were expressed in 82% and 41% of cases respectively, and PD-L1 but not PD-L2 expression correlated with Epstein Barr Virus in tumor cells...
November 6, 2017: Human Pathology
https://www.readbyqxmd.com/read/29119842/outcomes-following-front-line-chemotherapy-in-peripheral-t-cell-lymphoma-10-year-experience-at-the-royal-marsden-and-the-christie-hospital
#7
Mary Gleeson, Clare Peckitt, David Cunningham, Adam Gibb, Eliza A Hawkes, Morgan Back, Binnaz Yasar, Kate Foley, Rebecca Lee, Joanna Dash, Hannah Johnson, Catherine O'Hara, Andrew Wotherspoon, Ayoma Attygalle, Lia Menasce, Patrick Shenjere, Mike Potter, Mark E Ethell, Claire Dearden, John Radford, Ian Chau, Kim Linton
We evaluated the outcomes for patients with peripheral T-cell lymphoma (PTCL) undergoing front-line chemotherapy at our institutions between 2002 and 2012. One hundred and fifty-six patients were eligible, comprising PTCL not otherwise specified (NOS) (n = 50, 32.0%), angioimmunoblastic T-cell lymphoma (AITL) (n = 44, 28.2%), anaplastic large-cell lymphoma (ALCL) ALK negative (n = 23, 14.7%), ALCL ALK positive (n = 16, 10.3%), and other (n = 23, 14.7%). Most patients received CHOP (66.0%) and 13...
November 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29112013/cancer-therapy-associated-lymphoproliferative-disorders-an-under-recognized-type-of-immunodeficiency-associated-lymphoproliferative-disorder
#8
Sergio Pina-Oviedo, Roberto N Miranda, L Jeffrey Medeiros
We describe the clinicopathologic features of 17 patients who had a hematologic malignancy of various types, were treated, and subsequently developed a lymphoproliferative disorder (LPD). There were 10 men and 7 women with a median age of 59 years (range, 36 to 83 y). The primary hematologic neoplasms included: 5 chronic lymphocytic leukemia/small lymphocytic lymphoma, 3 plasma cell myeloma, 2 acute monoblastic leukemia, and 1 case each of mixed-phenotype acute leukemia, chronic myeloid leukemia, splenic marginal zone lymphoma, follicular lymphoma, mantle cell lymphoma, T-cell prolymphocytic leukemia, and peripheral T-cell lymphoma...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29103138/a-new-prognostic-score-comprising-lactate-dehydrogenase-albumin-and-neutrophil-to-lymphocyte-ratio-to-predict-sensitivity-to-first-line-chemotherapy-in-patients-with-peripheral-t-cell-lymphomas
#9
Satoshi Kaito, Yusuke Kanemasa, Yuki Sasaki, Toshihiro Okuya, Tsukasa Yamaguchi, Chikako Funasaka, Tatsu Shimoyama, Yasushi Omuro, Tsunekazu Hishima, Yoshiharu Maeda
No standard therapy for peripheral T-cell lymphomas (PTCLs) has been established, and treatment outcomes are poor. Upfront stem cell transplantation has been investigated in several studies, some of which have reported promising outcomes. However, some patients maintain long-term remission after chemotherapy alone. It is thus important to predict sensitivity to first-line chemotherapy to optimize treatment strategies. In the present study, we retrospectively analyzed time to treatment failure (TTF) of first-line chemotherapy in 59 patients with PTCLs...
November 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29101436/anaplastic-large-cell-lymphoma-associated-with-breast-implants-a-case-report-of-a-transgender-female
#10
Matej Patzelt, Lucie Zarubova, Pavel Klener, Josef Barta, Kamila Benkova, Adrianna Brandejsova, Marek Trneny, Robert Gürlich, Andrej Sukop
Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare peripheral T cell lymphoma. BIA-ALCL is a disease of the fibrous capsule surrounding the implant and occurs in patients after both breast reconstruction and augmentation. More than 300 cases have been reported so far, including two in a transgender patient. Here we describe BIA-ALCL presented with a mass in a transgender patient and the first case of BIA-ALCL in the Czech Republic. In 2007, a 33-year-old transgender male to female underwent bilateral breast augmentation as a part of his transformation to female...
November 3, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29100307/elevated-serum-interleukin-10-level-and-m2-macrophage-infiltration-are-associated-with-poor-survival-in-angioimmunoblastic-t-cell-lymphoma
#11
Jun Soo Ham, Ha Young Park, Kyung Ju Ryu, Young Hyeh Ko, Won Seog Kim, Seok Jin Kim
Interleukin-10 (IL-10) induces an immunosuppressive microenvironment including M2 macrophages, inhibiting anti-tumor immunity. The aim of this study was to evaluate whether serum IL-10 level at diagnosis and tissue infiltration of M2 macrophages could predict survival outcome of patients with angioimmunoblastic T-cell lymphoma (AITL). We measured serum levels of IL-5, IL-10, IL-12, and interferon-gamma (IFN-γ) at diagnosis in AITL and other common subtypes of nodal T-cell lymphoma including peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS), ALK-negative anaplastic large cell lymphoma (ALCL) or ALK-positive ALCL between September 2008 and December 2014...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29081194/-prognostic-significance-of-nccn-international-prognostic-index-nccn-ipi-for-patients-with-peripheral-t-cell-lymphoma-treated-with-chop-based-chemotherapy
#12
M C Zhang, P P Xu, H J Zhong, X Zhao, W L Zhao, S Cheng
Objective: To validate the prognostic value of NCCN-International Prognostic Index (NCCN-IPI) for patients with peripheral T-cell lymphoma (PTCL) treated with CHOP-based chemotherapy. Methods: A retrospective analysis in 162 PTCL patients who were initially diagnosed and treated in Rui Jin Hospital from January 2003 to May 2013 was conducted. Baseline characteristics were collected, and survival analysis was performed according to the IPI and NCCN-IPI model. Results: The estimated 5-year overall survival (OS) rate and progression free survival (PFS) rate were 33% and 20%, with median OS and PFS of 17...
September 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29074098/lorlatinib-in-non-small-cell-lung-cancer-with-alk-or-ros1-rearrangement-an-international-multicentre-open-label-single-arm-first-in-man-phase-1-trial
#13
Alice T Shaw, Enriqueta Felip, Todd M Bauer, Benjamin Besse, Alejandro Navarro, Sophie Postel-Vinay, Justin F Gainor, Melissa Johnson, Jorg Dietrich, Leonard P James, Jill S Clancy, Joseph Chen, Jean-François Martini, Antonello Abbattista, Benjamin J Solomon
BACKGROUND: Most patients with anaplastic lymphoma kinase (ALK)-rearranged or ROS proto-oncogene 1 (ROS1)-rearranged non-small-cell lung cancer (NSCLC) are sensitive to tyrosine kinase inhibitor (TKI) therapy, but resistance invariably develops, commonly within the CNS. This study aimed to analyse the safety, efficacy, and pharmacokinetic properties of lorlatinib, a novel, highly potent, selective, and brain-penetrant ALK and ROS1 TKI with preclinical activity against most known resistance mutations, in patients with advanced ALK-positive or ROS1-positive NSCLC...
October 23, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29072976/international-assessment-of-event-free-survival-at-24-months-and-subsequent-survival-in-peripheral-t-cell-lymphoma
#14
Matthew J Maurer, Fredrik Ellin, Line Srour, Mats Jerkeman, N Nora Bennani, Joseph M Connors, Graham W Slack, Karin E Smedby, Stephen M Ansell, Brian K Link, James R Cerhan, Thomas Relander, Kerry J Savage, Andrew L Feldman
Purpose Peripheral T-cell lymphomas (PTCLs) have aggressive clinical behavior. We have previously shown that event-free survival (EFS) at 24 months (EFS24) is a clinically useful end point in diffuse large B-cell lymphoma. Here, we assess EFS24 and subsequent overall survival (OS) in large, multinational PTCL cohorts. Patients and Methods Patients with systemic PTCL newly diagnosed from 2000 to 2012 and treated with curative intent were included from the United States and Sweden (initial cohorts) and from Canada (replication cohort)...
October 26, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29071477/enforced-expression-of-mir142-a-target-of-chromosome-translocation-in-human-b-cell-tumors-results-in-b-cell-depletion
#15
Kodai Kuriyama, Yutaka Enomoto, Ritsuro Suzuki, Jyuri Watanuki, Hiroki Hosoi, Yusuke Yamashita, Shogo Murata, Toshiki Mushino, Shinobu Tamura, Nobuyoshi Hanaoka, Martin Dyer, Reiner Siebert, Hiroshi Kiyonari, Hideki Nakakuma, Toshio Kitamura, Takashi Sonoki
MicroRNA142 (MIR142) is a target of chromosome translocations and mutations in human B-cell lymphomas. We analyzed an aggressive B-cell lymphoma carrying t(8;17)(q24;q22) and t(6;14)(p21;q32), and sought to explore the role(s) of MIR142 in lymphomagenesis. t(8;17)(q24;q22) involved MYC on 8q24 and pri-MIR142 on 17q22. MYC was activated by a promoter substitution by t(8;17)(q24;q22). t(8;17)(q24;q22) was an additional event after t(6;14) (p21;q32), which caused the over-expression of CCND3. Southern blot analyses revealed that the MIR142 locus was deleted from the affected allele, whereas Northern analyses showed over-expression of MIR142 in tumor cells...
October 25, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29070117/-efficacy-analysis-of-gemox-regimen-for-treatment-of-refractory-non-hodgkin-s-lymphoma
#16
Shi-Bin Yan, Zhong-Guang Chen, De-Liang Ma, Xin Lyu, Yan-Li Wang, Shi-Bing Chen, Gui-Tao Jie
OBJECTIVE: To explore the clinical efficacy of GEMOX regimen on patients with refractory non-hodgkin's lymphoma. METHODS: Eighty-two cases of non-Hodgkin's lymphoma were divided into 2 groups: gemcitabine+oxaliplation(Gem+Oxa) group (42 cases) and vinorelbine+oxaliplatin(Vin+Oxa) group (40 cases) according to chemotherapy regimens. The clinical efficacy, side effects, progression-free survival situation in 2 groups were compared. RESULTS: There was no significant difference on the clinical effects of 2 groups (P>0...
October 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29062917/single-cell-heterogeneity-and-cell-cycle-related-viral-gene-bursts-in-the-human-leukaemia-virus-htlv-1
#17
Martin R Billman, David Rueda, Charles R M Bangham
Background: The human leukaemia virus HTLV-1 expresses essential accessory genes that manipulate the expression, splicing and transport of viral mRNAs.  Two of these genes, tax and hbz, also promote proliferation of the infected cell, and both genes are thought to contribute to oncogenesis in adult T-cell leukaemia/lymphoma.  The regulation of HTLV-1 proviral latency is not understood.  tax, on the proviral plus strand, is usually silent in freshly-isolated cells, whereas the minus-strand-encoded hbz gene is persistently expressed at a low level...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/29058502/axicabtagene-ciloleucel-a-first-in-class-car-t-cell-therapy-for-aggressive-nhl
#18
Zachary J Roberts, Marc Better, Adrian Bot, Margo R Roberts, Antoni Ribas
The development of clinically functional chimeric antigen receptor (CAR) T cell therapy is the culmination of multiple advances over the last three decades. Axicabtagene ciloleucel (formerly KTE-C19) is an anti-CD19 CAR T cell therapy in development for patients with refractory diffuse large B cell lymphoma (DLBCL), including transformed follicular lymphoma (TFL) and primary mediastinal B cell lymphoma (PMBCL). Axicabtagene ciloleucel is manufactured from patients' own peripheral blood mononuclear cells (PBMC) during which T cells are engineered to express a CAR that redirects them to recognize CD19-expressing cells...
October 23, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29049466/breast-implant-associated-anaplastic-large-cell-lymphoma-a-systematic-review
#19
Ashley N Leberfinger, Brittany J Behar, Nicole C Williams, Kevin L Rakszawski, John D Potochny, Donald R Mackay, Dino J Ravnic
Importance: Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL), a rare peripheral T-cell lymphoma, is increasing in incidence. However, many practitioners who treat patients with breast cancer are not aware of this disease. Objectives: To assess how BIA-ALCL develops, its risk factors, diagnosis, and subsequent treatment and to disseminate information about this entity to the medical field. Evidence Review: A literature review was performed in an academic medical setting...
October 18, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29043543/surgical-management-of-splenic-marginal-zone-lymphoma
#20
N D Kennedy, G N Lê, M E Kelly, T Harding, K Fadalla, D C Winter
OBJECTIVES: Splenic marginal zone lymphoma (SMZL) is a rare indolent B-cell lymphoma with variable prognosis. As a result, there is sparse knowledge on the role of splenectomy and best management approaches. We aim to explore management strategies and outcomes amongst the cohort of SMZL patients at our centre. METHOD: A retrospective review of all splenectomies performed at a tertiary referral unit over a 23-year period was assessed. Immunohistochemical and pathological results of splenic samples, bone marrow biopsies, and peripheral blood were compiled...
October 17, 2017: Irish Journal of Medical Science
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