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natural killer cell lymphoma

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https://www.readbyqxmd.com/read/27917702/effectiveness-of-pegaspargase-gemcitabine-and-oxaliplatin-p-gemox-chemotherapy-combined-with-radiotherapy-in-newly-diagnosed-stage-ie-to-iie-nasal-type-extranodal-natural-killer-t-cell-lymphoma
#1
Wen Wei, Ping Wu, Li Li, Zhi-Hui Zhang
PURPOSE: Extranodal natural killer/T-cell lymphoma (ENKTL), nasal-type, is a distinct subtype of non-Hodgkin lymphoma. ENKTL is sensitive to radiotherapy, but the prognosis is poorer than those of other types of early stage lymphoma. To date, optimal treatment strategies for patients with early stage ENKTL have not been fully defined. METHODS: We retrospectively investigated the efficacy and safety of pegaspargase, gemcitabine, and oxaliplatin (P-GEMOX) combined with different dose radiotherapy (RT) in the treatment of 35 newly diagnosed, stage IE to IIE ENKTL patients at our institution from October 2011 to September 2015...
December 5, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27903713/-trained-immunity-consequences-for-lymphoid-malignancies
#2
REVIEW
Wendy B C Stevens, Mihai G Netea, Arnon P Kater, Walter J F M van der Velden
In hematological malignancies complex interactions exist between the immune system, microorganisms and malignant cells. On one hand, microorganisms can induce cancer, as illustrated by specific infection-induced lymphoproliferative diseases such as Helicobacter pylori-associated gastric mucosa-associated lymphoid tissue lymphoma. On the other hand, malignant cells create an immunosuppressive environment for their own benefit, but this also results in an increased risk of infections. Disrupted innate immunity contributes to the neoplastic transformation of blood cells by several mechanisms, including the uncontrolled clearance of microbial and autoantigens resulting in chronic immune stimulation and proliferation, chronic inflammation, and defective immune surveillance and anti-cancer immunity...
December 2016: Haematologica
https://www.readbyqxmd.com/read/27901491/a-comparison-of-treatment-modalities-for-nasal-extranodal-natural-killer-t-cell-lymphoma-in-early-stages-the-efficacy-of-chop-regimen-based-concurrent-chemoradiotherapy
#3
Jianzhong Cao, Shengmin Lan, Liuhai Shen, Hongwei Si, Ning Zhang, Hongwei Li, Ruyuan Guo
This study was designed to evaluate the efficacy of several treatment modalities, including CHOP based concurrent chemoradiotherapy (CCRT), for the patients with stage IE or IIE nasal extranodal NK/T-cell lymphoma (nasal ENKL). The cases were retrieved between 2000 and 2010 (n=94), and were followed to the end of February 2016. The patients were grouped into A (chemotherapy alone; CT alone), B (sequential treatment) and C (CCRT). For those with efficacy evaluation for overall treatment (n=90), CR was attained in 60...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27893001/association-of-improved-locoregional-control-with-prolonged-survival-in-early-stage-extranodal-nasal-type-natural-killer-t-cell-lymphoma
#4
Yong Yang, Jian-Zhong Cao, Sheng-Min Lan, Jun-Xin Wu, Tao Wu, Su-Yu Zhu, Li-Ting Qian, Xiao-Rong Hou, Fu-Quan Zhang, Yu-Jing Zhang, Yuan Zhu, Li-Ming Xu, Zhi-Yong Yuan, Shu-Nan Qi, Ye-Xiong Li
Importance: The long-term survival benefit for radiotherapy (RT) in early-stage extranodal natural killer/T-cell lymphoma (NKTCL) is not known, and it is unclear whether improved locoregional control (LRC) translates into a survival benefit. Objective: To investigate the dose-dependent effect and potential survival benefits of RT on the basis of LRC improvements. Design, Setting, and Participants: Review of clinical data of patients with early-stage NKTCL at 10 institutions in China between 2000 and 2014...
November 17, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27887866/continuously-expanding-car-nk-92-cells-display-selective-cytotoxicity-against-b-cell-leukemia-and-lymphoma
#5
Sarah Oelsner, Miriam E Friede, Congcong Zhang, Juliane Wagner, Susanne Badura, Peter Bader, Evelyn Ullrich, Oliver G Ottmann, Hans Klingemann, Torsten Tonn, Winfried S Wels
BACKGROUND AIMS: Natural killer (NK) cells can rapidly respond to transformed and stressed cells and represent an important effector cell type for adoptive immunotherapy. In addition to donor-derived primary NK cells, continuously expanding cytotoxic cell lines such as NK-92 are being developed for clinical applications. METHODS: To enhance their therapeutic utility for the treatment of B-cell malignancies, we engineered NK-92 cells by lentiviral gene transfer to express chimeric antigen receptors (CARs) that target CD19 and contain human CD3ζ (CAR 63...
November 22, 2016: Cytotherapy
https://www.readbyqxmd.com/read/27866584/lymphoma
#6
REVIEW
Emiliano N Mugnaini, Nilanjan Ghosh
Lymphomas may be broadly divided into non-Hodgkin (90%) and Hodgkin (10%) types. Most lymphomas (90%) are of B cell origin but can also be T cell or natural killer cell. Clinical management of indolent and aggressive lymphomas is different. Aggressive lymphomas are more dangerous if left untreated yet a higher cell proliferation rate also renders them more chemosensitive, so they are managed with curative intent. Indolent lymphomas are, for the most part, incurable, such that quality of life must be balanced against toxicity of treatment in deciding when and how to treat...
December 2016: Primary Care
https://www.readbyqxmd.com/read/27862195/vaccinia-virus-western-reserve-induces-rapid-surface-expression-of-a-host-molecule-detected-by-the-antibody-4c7-that-is-distinct-from-clec2d
#7
Kinola J N Williams, Heather E Eaton, Lena Jones, Supraja Rengan, Deborah N Burshtyn
In this study, the effect of active infection with vaccinia virus Western Reserve (VACV WR) on expression of C-type lectin domain family 2 (CLEC2D), a ligand of the human NK cell inhibitory receptor NKR-P1, was examined. As predicted, VACV infection led to a loss of CLEC2D mRNA in 221 cells, a B cell lymphoma line. Surprisingly, VACV infection of 221 cells caused a dramatic increase in cell surface staining for one CLEC2D-specific antibody, 4C7. There were no changes in other antibodies specific for CLEC2D and no indication that NK cells with NKR-P1A were inhibited, suggesting 4C7 detects a non-CLEC2D molecule following infection...
November 2016: Microbiology and Immunology
https://www.readbyqxmd.com/read/27861156/an-nk-cell-line-hank-expressing-high-levels-of-granzyme-and-engineered-to-express-the-high-affinity-cd16-allele
#8
Caroline Jochems, James W Hodge, Massimo Fantini, Rika Fujii, Y Maurice Morillon Ii, John W Greiner, Michelle R Padget, Sarah R Tritsch, Kwong Yok Tsang, Kerry S Campbell, Hans Klingemann, Laurent Boissel, Shahrooz Rabizadeh, Patrick Soon-Shiong, Jeffrey Schlom
Natural killer (NK) cells are known to play a role in mediating innate immunity, in enhancing adaptive immune responses, and have been implicated in mediating anti-tumor responses via antibody-dependent cell-mediated cytotoxicity (ADCC) by reactivity of CD16 with the Fc region of human IgG1 antibodies. The NK-92 cell line, derived from a lymphoma patient, has previously been well characterized and adoptive transfer of irradiated NK-92 cells has demonstrated safety and shown preliminary evidence of clinical benefit in cancer patients...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27843311/cd20-monoclonal-antibody-targeted-nanoscale-drug-delivery-system-for-doxorubicin-chemotherapy-an-in-vitro-study-of-cell-lysis-of-cd20-positive-raji-cells
#9
Shuang Jiang, Xiaobo Wang, Zhiran Zhang, Lan Sun, Yunzhu Pu, Hongjuan Yao, Jingcao Li, Yan Liu, Yingge Zhang, Weijing Zhang
A monoclonal antibody targeted nanoscale drug delivery system (NDDS) for chemotherapy was evaluated in CD20-positive Raji cells in vitro. Nanoparticles were formed by the assembly of an amphiphilic polymer consisting of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-methoxypolyethyleneglycol-2000 (DSPE-PEG2000). Active carbon nanoparticles (ACNP) were conjugated to the chemotherapeutic agent, doxorubicin (DOX), and the nanoliposome carrier, DSPE-PEG2000 and DSPE-PEG2000-NH2 conjugated to the human anti-CD20 monoclonal antibody that targets B-lymphocytes...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27843135/extended-course-and-increased-dose-of-initial-chemotherapy-for-extranodal-nasal-type-natural-killer-t-nk-t-cell-lymphoma-in-patients-60-years-old-a-single-center-retrospective-cohort-study
#10
Yan Xu, Jin Wang, Wanggang Zhang, Jie Liu, Xingmei Cao, Aili He, Yinxia Chen, Liufang Gu, Bo Lei, Pengyu Zhang, Xiaorong Ma
BACKGROUND Extranodal NK/T-cell lymphoma (ENKTL) of the nasal type is highly invasive and relatively resistant to chemotherapy. This study aimed to assess the efficacy and safety of an extended chemotherapy regimen with increased dose intensity. MATERIAL AND METHODS This was a retrospective cohort study of 69 patients <60 years old with an ECOG score 0-2 treated for ENKTL at the Second Affiliated Hospital of Xi'an Jiaotong University between January 2004 and December 2013. The outcomes were compared between patients who received >8 courses of high-intensity chemotherapy (n=37) vs...
November 11, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27831501/characterizing-cd137-upregulation-on-nk-cells-in-patients-receiving-monoclonal-antibody-therapy
#11
A Makkouk, V Sundaram, C Chester, S Chang, A D Colevas, J B Sunwoo, H Maecker, M Desai, H E Kohrt
BACKGROUND: In the era of personalized cancer medicine, identifying techniques for effectively matching patients to efficacious treatments is a critical step in the treatment process. The advent of anti-cancer immunotherapies necessitates novel approaches to biomarker identification beyond traditional genomic profiling. One promising approach is incorporation of nomograms into treatment decisions. Nomograms are prediction tools, based on statistical modeling, designed to predict treatment outcomes...
November 9, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27824969/the-early-diagnosis-of-testicular-natural-killer-t-cell-lymphoma
#12
Pei Shu, Wenwu Ling, Chenjing Zhu, Jianchao Wang, Chong Jiang, Weiwei Zhang, Yue Xiao, Xuelei Ma
Testicular natural killer/T-cell lymphoma is a rare aggressive extranodal lymphoma associated with Epstein-Barr virus infection. Time to diagnose is crucial as the disease is rapidly progressive and fatal. Early suspicion is documented by imaging studies and testicular biopsies which are key factors for diagnosing testicular natural killer/T-cell lymphoma. However, no reports have described the results of imaging studies. In this paper, contrast-enhanced ultrasonography (CEUS), fluorine-18-fuorodexoyglucose-positron emission tomography/computed tomography ((18)F-FDG PET/CT) and tumor biopsies were all diagnostic of testicular natural killer/T-cell lymphoma...
November 8, 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27801784/the-activating-nkg2c-receptor-is-significantly-reduced-in-nk-cells-after-allogeneic-stem-cell-transplantation-in-patients-with-severe-graft-versus-host-disease
#13
Lambros Kordelas, Nina-Kristin Steckel, Peter A Horn, Dietrich W Beelen, Vera Rebmann
Natural killer (NK) cells play a central role in the innate immune system. In allogeneic stem cell transplantation (alloSCT), alloreactive NK cells derived by the graft are discussed to mediate the elimination of leukemic cells and dendritic cells in the patient and thereby to reduce the risk for leukemic relapses and graft-versus-host reactions. The alloreactivity of NK cells is determined by various receptors including the activating CD94/NKG2C and the inhibitory CD94/NKG2A receptors, which both recognize the non-classical human leukocyte antigen E (HLA-E)...
October 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27801344/-the-significance-of-peripheral-blood-natural-killer-cell-surface-cd107a-nkg2d-and-serum-smica-in-patients-with-extranodal-nk-t-cell-lymphoma-nasal-type
#14
J X Liu, J W Wang, X Y Cui
The expression of CD107a, NKG2D on the surface of natural killer (NK) cells and serum soluble major histocompatibility complex class Ⅰ chain-related A (sMICA) level in patients with extranodal NK/T cell lymphoma, nasal type (ENKL) were detected.We found that CD107a expression was reduced on the surface of NK cells, suggesting impaired NK cell activity in ENKL patients, which may result from decreased NKG2D expression.
November 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27785062/chemotherapy-combined-with-high-dose-extended-field-radiotherapy-for-stage-i-extranodal-nasal-type-natural-killer-t-cell-lymphoma
#15
Jialin Luo, Caineng Cao, Yuan Zhu, Peng Liu, Luying Liu, Ke Lu, Na Zhang, Ning Zhou
BACKGROUND AND OBJECTIVE: The objective of the study was to evaluate the efficiency of chemotherapy (CT) combined with high-dose extended-field radiotherapy (RT) in stage I extranodal nasal-type natural killer/T-cell lymphoma (NKTCL). PATIENTS AND METHODS: Between January 2001 and November 2010, 103 stage I extranodal nasal-type NKTCL patients were retrospectively analyzed. Of these patients, 75 patients were treated by RT plus CT and 28 patients were treated by RT alone...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27782301/clinical-manifestations-and-pathogenesis-of-cutaneous-lymphomas-current-status-and-future-directions
#16
REVIEW
Belen Rubio-Gonzalez, Jasmine Zain, Steven T Rosen, Christiane Querfeld
The primary cutaneous lymphomas are a heterogeneous group of T-, Natural Killer- and B- cell neoplasms with a wide range of clinical and pathological presentations, and with very different prognoses compared to systemic lymphomas. Recent studies have shown that the skin microenvironment, which is composed of various immune cell subsets as well as their spatial distribution and T-cell interactions through different chemokines and cytokines, has an important role in the development and pathogenesis of cutaneous lymphomas and has assisted in the development of novel and more effective immunotherapies...
October 26, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27765614/genetically-re-engineered-k562%C3%A2-cells-significantly-expand-and-functionally-activate-cord-blood-natural-killer-cells-potential-for-adoptive-cellular-immunotherapy
#17
Janet Ayello, Jessica Hochberg, Allyson Flower, Yaya Chu, Laxmi V Baxi, William Quish, Carmella van de Ven, Mitchell S Cairo
Natural killer (NK) cells play a significant role in reducing relapse in patients with hematological malignancies after allogeneic stem cell transplantation, but NK cell number and naturally occurring inhibitory signals limit their capability. Interleukin-15 (IL-15) and 4-1BBL are important modulators of NK expansion and functional activation. To overcome these limitations, cord blood mononuclear cells (CB MNCs) were ex vivo expanded for 7 days with genetically modified K562-mbIL15-41BBL (MODK562) or wild-type K562 (WTK562)...
October 17, 2016: Experimental Hematology
https://www.readbyqxmd.com/read/27757307/cd1b-autoreactive-t-cells-recognize-phospholipid-antigens-and-contribute-to-antitumor-immunity-against-a-cd1b-t-cell-lymphoma
#18
Sreya Bagchi, Sha Li, Chyung-Ru Wang
Adoptive immunotherapy for cancer treatment is an emerging field of study. Till now, several tumor-derived, peptide-specific T cell responses have been harnessed for treating cancers. However, the contribution of lipid-specific T cells in tumor immunity has been understudied. CD1 molecules, which present self- and foreign lipid antigens to T cells, are divided into group 1 (CD1a, CD1b, and CD1c) and group 2 (CD1d). Although the role of CD1d-restricted natural killer T cells (NKT) in several tumor models has been well established, the contribution of group 1 CD1-restricted T cells in tumor immunity remains obscure due to the lack of group 1 CD1 expression in mice...
2016: Oncoimmunology
https://www.readbyqxmd.com/read/27752533/cd56-extranodal-natural-killer-nk-t-cell-lymphoma-nasal-type-presenting-as-skin-ulcers-in-a-white-man
#19
Charles Vainder, Jonhan Ho, Steven H Swerdlow, Oleg E Akilov
No abstract text is available yet for this article.
September 2016: JAAD Case Reports
https://www.readbyqxmd.com/read/27749560/pyoderma-gangrenosum-preceding-the-onset-of-extranodal-natural-killer-t-cell-lymphoma-a-case-report
#20
Ting-Hua Yang, Chung-Hong Hu, Hsiou-Hsin Tsai
INTRODUCTION: Pyoderma gangrenosum (PG) is a neutrophilic dermatosis that may be associated with systemic diseases. The association of PG with lymphoid malignancies has rarely been reported. Extranodal natural killer/T-cell lymphoma (ENKTL) is a rare but aggressive entity with a poor prognosis. Here, we report the case of a patient who had idiopathic PG refractory to systemic steroids and subsequently developed ENKTL. CASE REPORT: A 70-year-old man presented with a 2-month history of intermittent fever and multifocal painful papules, plaques, and ulcerations on his extremities...
October 2016: Medicine (Baltimore)
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