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natural killer cell lymphoma

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https://www.readbyqxmd.com/read/28725044/cord-blood-nk-cells-engineered-to-express-il-15-and-a-cd19-targeted-car-show-long-term-persistence-and-potent-anti-tumor-activity
#1
E Liu, Y Tong, G Dotti, H Shaim, B Savoldo, M Mukherjee, J Orange, X Wan, X Lu, A Reynolds, M Gagea, P Banerjee, R Cai, M H Bdaiwi, R Basar, M Muftuoglu, L Li, D Marin, W Wierda, M Keating, R Champlin, E Shpall, K Rezvani
Chimeric antigen receptors (CARs) have been used to redirect the specificity of autologous T-cells against leukemia and lymphoma with promising clinical results.(1-3) Extending this approach to allogeneic T-cells is problematic as they carry a significant risk of graft-versus-host disease (GVHD). Natural killer (NK) cells are highly cytotoxic effectors, killing their targets in a non-antigen specific manner without causing GVHD. Cord blood (CB) offers an attractive, allogeneic, off-the-self source of NK cells for immunotherapy...
July 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28723738/phosphatase-and-tensin-homolog-pten-is-down-regulated-in-human-nk-t-cell-lymphoma-and-corrects-with-clinical-outcomes
#2
Xiaorui Fu, Xudong Zhang, Jinli Gao, Xin Li, Lei Zhang, Ling Li, Xinhua Wang, Zhenchang Sun, Zhaoming Li, Yu Chang, Qingjiang Chen, Mingzhi Zhang
Nasal-type natural killer/T-cell (NK/T-cell) lymphoma is a more aggressive sub-group of non-Hodgkin lymphoma, which is more common in Asia. The phosphatase and tensin homolog (PTEN) was originally discovered as a candidate tumor suppressor mutated and lost in various cancers. However, its clinical value and role in NK/T-cell lymphoma remain to be further explored. In the present study, we analyzed PTEN protein expression in 60 cases of human NK/T-cell lymphoma tissues and 40 cases of control nasal mucosa tissues specimens by immunohistochemical analysis...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28708284/cd20-specific-immunoligands-engaging-nkg2d-enhance-%C3%AE-%C3%AE-t-cell-mediated-lysis-of-lymphoma-cells
#3
Matthias Peipp, Daniela Wesch, Hans-Heinrich Oberg, Sebastian Lutz, Anja Muskulus, Jan G J van de Winkel, Paul W H I Parren, Renate Burger, Andreas Humpe, Dieter Kabelitz, Martin Gramatzki, Christian Kellner
Human γδ T cells are innate-like T cells which are able to kill a broad range of tumor cells and thus may have potential for cancer immunotherapy. The activating receptor natural killer group 2 member D (NKG2D) plays a key role in regulating immune responses driven by γδ T cells. Here, we explored whether recombinant immunoligands consisting of a CD20 single-chain fragment variable (scFv) linked to a NKG2D ligand, either MHC class I chain-related protein A (MICA) or UL16 binding protein 2 (ULBP2), could be employed to engage γδ T cells for tumor cell killing...
July 14, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28701224/the-150-most-important-questions-in-cancer-research-and-clinical-oncology-series-questions-40-49
#4
EDITORIAL
(no author information available yet)
Since the beginning of 2017, Chinese Journal of Cancer has published a series of important questions in cancer research and clinical oncology, which sparkle diverse thoughts, interesting communications, and potential collaborations among researchers all over the world. In this article, 10 more questions are presented as followed. Question 40. Why do mice being used as tumorigenesis models raised in different places or different conditions possess different tumor formation rate? Question 41. How could we generate more effective anti-metastasis drugs? Question 42...
July 13, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28695659/epstein-barr-virus-negative-extranodal-true-natural-killer-cell-lymphoma-harbouring-a-kdm6a-mutation
#5
Naoko Tsuyama, Reimi Asaka, Akito Dobashi, Satoko Baba, Yuko Mishima, Kyoko Ueda, Masahiko Oguchi, Hideki Tsuji, Kiyohiko Hatake, Kengo Takeuchi
Extranodal natural killer (NK)/T-cell lymphoma, nasal type (ENKTL) is an extranodal aggressive T or NK-cell lymphoma that is characteristically associated with Epstein-Barr virus (EBV) infection and cytotoxic tissue-destructive features. Although ENKTL is described as a distinct entity according to the 2008 WHO classification, a considerable complexity is associated with the differential diagnosis of other T-cell lymphomas with respect to tumour cell origins, locations, and the presence of EBV infection, as well as molecular and cytogenetic abnormalities...
July 10, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28695246/intensity-modulated-radiation-therapy-followed-by-gdp-chemotherapy-for-newly-diagnosed-stage-i-ii-extranodal-natural-killer-t-cell-lymphoma-nasal-type
#6
Yu Huang, Jianliang Yang, Peng Liu, Shengyu Zhou, Lin Gui, Xiaohui He, Yan Qin, Changgong Zhang, Sheng Yang, Puyuan Xing, Yan Sun, Yuankai Shi
Extranodal natural killer (NK)/T cell lymphoma, nasal type (ENKTL) is an aggressive non-Hodgkin lymphoma and the majority of ENKTL cases are diagnosed at the localized stage. Radiotherapy in combination with chemotherapy has been used for localized ENKTL, but the optimal combination treatment modality and the best first-line chemotherapy regimen have not been defined. In this retrospective study, 44 patients with newly diagnosed, stages I/II ENKTL were enrolled and received intensity-modulated radiation therapy (IMRT, 50-56 Gy) followed by GDP (gemcitabine, dexamethasone, and cisplatin) chemotherapy...
July 11, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28691866/safety-and-pharmacodynamics-of-venetoclax-abt-199-in-a-randomized-single-and-multiple-ascending-dose-study-in-women-with-systemic-lupus-erythematosus
#7
P Lu, R Fleischmann, C Curtis, S Ignatenko, S H Clarke, M Desai, S L Wong, K M Grebe, K Black, J Zeng, J Stolzenbach, J K Medema
Objective The anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) may contribute to the pathogenesis of systemic lupus erythematosus. The safety, tolerability, and pharmacodynamics of the selective Bcl-2 inhibitor venetoclax (ABT-199) were assessed in women with systemic lupus erythematosus. Methods A phase 1, double-blind, randomized, placebo controlled study evaluated single ascending doses (10, 30, 90, 180, 300, and 500 mg) and multiple ascending doses (2 cycles; 30, 60, 120, 240, 400, and 600 mg for 1 week, and then 3 weeks off per cycle) of orally administered venetoclax...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28679993/iatrogenic-immunodeficiency-associated-epstein-barr-virus-ebv-negative-natural-killer-cell-lymphoproliferative-disorder-in-a-patient-undergoing-rheumatoid-arthritis-therapy
#8
Tomoyuki Uchida, Morihiro Inoue, Jian Hua, Shogo Tajima, Yasunori Ota, Masao Hagihara
Here we present a patient with rheumatoid arthritis (RA), who was suspected to have developed malignant lymphoma during immunosuppressive therapy 5 years earlier. She temporarily achieved remission after discontinuing therapy; however, her disease worsened with remittent fever and splenomegaly. Splenic biopsy demonstrated infiltration by abnormal cells, which were positive for CD56 and T cell intracytoplasmic antigen, but negative for CD3 and Epstein-Barr virus (EBV) -encoded RNA. Cytogenetic analysis of bone marrow and lumbar spine tumor revealed common complex karyotype abnormalities...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28679297/evaluation-of-the-cytotoxic-response-mediated-by-perforin-and-granzyme-b-in-patients-with-non-hodgkin-lymphoma
#9
Bruna Maria Bereta Souza, Fernanda Bernadelli De Vito, Marianna Licati Calado, Marcos Vinícius Silva, Leonardo Rodrigues Oliveira, Virmondes Rodrigues-Júnior, Helio Moraes-Souza
This study quantified the perforin and granzyme B in patients with non-Hodgkin lymphoma (NHL) at the time of diagnosis. Protein quantification was performed by flow cytometry. NHL patients had a higher number of cytotoxic T lymphocytes (CTLs) expressing perforin as well as a greater number of activated CTLs than the control group. However, intracellular perforin levels in natural killer cells were lower in the NHL patients compared to the control group. Quantitative real time PCR showed that patients had more expression of perforin and granzyme B transcripts compared to the control group...
July 6, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28672968/clinical-analysis-of-42-cases-of-ebv-positive-mature-t-nk-cell-neoplasms
#10
Haiyan Yang, Gan Fu, Jia Liu, Zhenzhen Da, Xiaoye Cheng, Cong Chen, Yan Li, Bin Fu, Xiaolin Li
The pathogenesis of Epstein-Barr virus-positive (EBV(+)) mature T-cell and natural killer (NK)-cell neoplasms is challenging to understand. The clinical features are diverse, with no typical manifestation. Therefore, it is important to analyze the association of the clinical characteristics and prognoses of patients with various factors associated with EBV(+) T/NK-cell neoplasms, particularly extranodal NK/T cell lymphoma, systemic EBV(+) T/NK cell lymphoproliferative disorders, aggressive NK cell leukemia and EBV(+) peripheral T-cell lymphoma...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28659916/hla-bw4-i-80-isoform-differentially-influences-clinical-outcome-as-compared-to-hla-bw4-t-80-and-hla-a-bw4-isoforms-in-rituximab-or-dinutuximab-based-cancer-immunotherapy
#11
Amy K Erbe, Wei Wang, Patrick K Reville, Lakeesha Carmichael, KyungMann Kim, Eneida A Mendonca, Yiqiang Song, Jacquelyn A Hank, Wendy B London, Arlene Naranjo, Fangxin Hong, Michael D Hogarty, John M Maris, Julie R Park, M F Ozkaynak, Jeffrey S Miller, Andrew L Gilman, Brad Kahl, Alice L Yu, Paul M Sondel
Killer-cell immunoglobulin-like receptors (KIRs) are a family of glycoproteins expressed primarily on natural killer cells that can regulate their function. Inhibitory KIRs recognize MHC class I molecules (KIR-ligands) as ligands. We have reported associations of KIRs and KIR-ligands for patients in two monoclonal antibody (mAb)-based trials: (1) A Children's Oncology Group (COG) trial for children with high-risk neuroblastoma randomized to immunotherapy treatment with dinutuximab (anti-GD2 mAb) + GM-CSF + IL-2 + isotretinion or to treatment with isotretinoin alone and (2) An Eastern Cooperative Oncology Group (ECOG) trial for adults with low-tumor burden follicular lymphoma responding to an induction course of rituximab (anti-CD20 mAb) and randomized to treatment with maintenance rituximab or no-maintenance rituximab...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28652944/extranodal-natural-killer-t-cell-lymphoma-an-incidental-finding
#12
Ashley Althoff, Michael Bibliowicz
Extranodal natural killer/T-cell lymphoma (ENKTCL) is a rare form of non-Hodgkin lymphoma. This neoplasm is more prevalent in regions of Asia and Latin America and most commonly involves the sinonasal tract, presenting with signs of nasal obstruction, epistaxis, or sinus infection. It is a locally destructive and angioinvasive neoplasm. The treatment of ENKTCL is dependent on the extent of the tumor. For localized disease, the treatment is chemoradiation. For disseminated disease, treatment is mainly chemotherapy-based...
May 19, 2017: Curēus
https://www.readbyqxmd.com/read/28623913/aggressive-natural-killer-cell-leukemia-or-extranodal-nk-t-cell-lymphoma-a-case-with-nasal-involvement
#13
Xiaoke Jin, Youhai Xu, Jun Zhang, Guangxi Li, Dongping Huang, Yuqiong Yang, Hesheng He
BACKGROUND: Aggressive natural killer cell leukemia/lymphoma (ANKL) is a rare and highly aggressive NK cell neoplasm with a short clinical course and poor prognosis and is often misdiagnosed and confused with NK/T cell lymphoma (NKTL), which has a very different prognosis. Here, we present a case with nasal and bone marrow involvement, provide a literature review and make a differential diagnosis. CASE PRESENTATION: A 41-year-old male presented nasal congestion pharyngalgia, palatal perforation, high fever and multiorgan dysfunction...
June 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28600336/diagnosis-and-classification-of-hematologic-malignancies-on-the-basis-of-genetics
#14
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/28596480/tumor-necrosis-and-complete-resection-has-significant-impacts-on-survival-in-patients-with-limited-stage-upper-aerodigestive-tract-nk-t-cell-lymphoma
#15
Moo-Kon Song, Joo-Seop Chung, Ho-Young Yhim, Sung-Nam Lim, Seong-Jang Kim, Yeon-Hee Han, Hye-Kyung Shim, Sung-Hoon Jung, Je-Jung Lee, Deok-Hwan Yang
Tumor necrosis (TN) is associated with worse prognosis in several solid cancers. Whether TN predicts poor outcome in natural killer cell / T cell lymphoma (NKTCL) is unclear. We investigated the clinical impact of TN on survival and other novel prognostic parameters in upper aero-digestive tract (UAT) NKTCL of 100 patients with limited stage. TN was significantly associated with poor performance status (p = 0.049), high Korean Prognostic Index score (p = 0.024), high C-reactive protein/albumin ratio (p = 0...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28592786/epstein-barr-virus-associated-lymphoproliferative-disorders-review-and-update-on-2016-who-classification
#16
Hyun-Jung Kim, Young Hyeh Ko, Ji Eun Kim, Seung-Sook Lee, Hyekyung Lee, Gyeongsin Park, Jin Ho Paik, Hee Jeong Cha, Yoo-Duk Choi, Jae Ho Han, Jooryung Huh
Epstein-Barr virus (human herpesvirus-4) is very common virus that can be detected in more than 95% of the human population. Most people are asymptomatic and live their entire lives in a chronically infected state (IgG positive). However, in some populations, the Epstein-Barr virus (EBV) has been involved in the occurrence of a wide range of B-cell lymphoproliferative disorders (LPDs), including Burkitt lymphoma, classic Hodgkin's lymphoma, and immune-deficiency associated LPDs (post-transplant and human immunodeficiency virus-associated LPDs)...
June 5, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28591700/restoration-of-immune-surface-molecules-in-kaposi-sarcoma-associated-herpesvirus-infected-cells-by-lenalidomide-and-pomalidomide
#17
David A Davis, Suraj Mishra, Holda A Anagho, Ashley I Aisabor, Prabha Shrestha, Victoria Wang, Yuki Takamatsu, Kenji Maeda, Hiroaki Mitsuya, Jerome B Zeldis, Robert Yarchoan
Kaposi sarcoma-associated herpesvirus (KSHV) is the cause of several tumors, including Kaposi sarcoma and primary effusion lymphoma (PEL). Most viruses have evolved means of escaping immune recognition. KSHV downregulates MHC-I expression during lytic infection, and expression of ICAM-1 and B7-2 (CD86) during latent infection, allowing evasion of T cell and natural killer immunity respectively. These effects are largely mediated by two KSHV-encoded proteins, K3 and K5. We show here that lenalidomide (Len) and pomalidomide (Pom) prevent down-regulation of MHC-I during lytic activation, and restore ICAM-1 and B7-2 surface expression in latently infected PEL cells...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28583838/mimicking-gastric-natural-killer-t-cell-lymphoma
#18
Satoshi Ogawa, Yukihiro Imai, Tetsuro Inokuma
No abstract text is available yet for this article.
June 2, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28579857/toward-a-biology-driven-treatment-strategy-for-peripheral-t-cell-lymphoma
#19
Cat Hildyard, S Shiekh, Jab Browning, G P Collins
T-cell and natural killer-cell lymphomas are a relatively rare and heterogeneous group of diseases that are difficult to treat and usually have poor outcomes. To date, therapeutic interventions are of limited efficacy and there is a pressing need to find better treatments. In recent years, advances in molecular biology have helped to elucidate the underlying genetic complexity of this group of diseases and to identify mutations and signaling pathways involved in lymphomagenesis. In this review, we highlight the unique biological characteristics of some of the different subtypes and discuss how these may be targeted to provide more individualized and effective treatment approaches...
2017: Clinical Medicine Insights. Blood Disorders
https://www.readbyqxmd.com/read/28549432/dendritic-cells-combined-with-tumor-cells-and-%C3%AE-galactosylceramide-induce-a-potent-therapeutic-and-nk-cell-dependent-antitumor-immunity-in-b-cell-lymphoma
#20
Laura Escribà-Garcia, Carmen Alvarez-Fernández, Marta Tellez-Gabriel, Jorge Sierra, Javier Briones
BACKGROUND: Invariant natural killer T (iNKT) cells are a small population of lymphocytes with unique specificity for glycolipid antigens presented by non-polymorphic CD1d receptor on dendritic cells (DCs). iNKT cells play a central role in tumor immunology since they are implicated in the coordination of innate and adaptive immune responses. These cells can be activated with the prototypic lipid α-galactosylceramide (α-GalCer), stimulating interferon gamma (IFN-γ) production and cytokine secretion, which contribute to the enhancement of T cell activation...
May 26, 2017: Journal of Translational Medicine
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