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natural killer cell lymphoma

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https://www.readbyqxmd.com/read/28811973/nk-cell-dysfunction-in-chronic-lymphocytic-leukemia-is-associated-with-loss-of-the-mature-cells-expressing-inhibitory-killer-cell-ig-like-receptors
#1
Alexander W MacFarlane, Mowafaq Jillab, Mitchell R Smith, R Katherine Alpaugh, Marion E Cole, Samuel Litwin, Michael M Millenson, Tahseen Al-Saleem, Adam D Cohen, Kerry S Campbell
A prospective analysis of natural killer (NK) cell phenotype and function was performed on fresh peripheral blood samples from untreated patients with B-cell chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Compared to healthy controls, CD56(dim) NK cells in CLL patients displayed reduced expression of the NKG2D activating receptor and increased CD27 expression, which indicates declines in mature cells. In addition, NK cells from CLL patients showed reduced degranulation responses toward transformed B cells alone or with rituximab and were more sensitive to activation-induced cell death...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28804660/large-granular-lymphocytic-leukemia-a-report-of-response-to-rituximab
#2
Uroosa Ibrahim, Sara Parylo, Shiksha Kedia, Shafinaz Hussein, Jean Paul Atallah
Large granular lymphocytic (LGL) leukemia is a rare form of low grade leukemia characterized by large cytotoxic T cells or natural killer cells on morphological examination. Immunosuppressive therapy is employed as first-line therapy. Treatment options in refractory cases include the anti-CD52 antibody alemtuzumab and purine analogues. We report a rare case that responded to the anti-CD20 monoclonal antibody rituximab. A 77-year-old female presented with complaints of fatigue, fever, and chills of 3 months' duration...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28790853/a-systematic-comparison-of-treatment-modalities-for-nasal-extranodal-natural-killer-t-cell-lymphoma-in-early-stages-between-concurrent-chemoradiotherapy-and-sequential-chemotherapy
#3
Ming Qian, Hengmin Tao, Wei Xu, Hongzhi Ji
AIM: Nasal extranodal natural killer/T-cell lymphoma (nasal ENKTL), which is strongly associated with the Epstein-Barr virus infection, is a common disease in Asia and Latin America. We conducted a retrospective study to compare the overall survival (OS) following concurrent or sequential treatment with radiotherapy and chemotherapy in patients with early stage ENKTL. PATIENTS AND METHODS: The records of 58 cases from between 2000 to 2010 were retrieved. Of these, 28 patients (15 males, with median age of 51 years) were treated with sequential chemotherapy followed by radiotherapy (SCRT) and 30 patients (17 males, with median age of 46 years) were treated with concurrent chemoradiotherapy (CCRT)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28771673/activity-of-lenalidomide-in-mantle-cell-lymphoma-can-be-explained-by-nk-cell-mediated-cytotoxicity
#4
Patrick R Hagner, Hsiling Chiu, Maria Ortiz, Benedetta Apollonio, Maria Wang, Suzana Couto, Michelle F Waldman, Erin Flynt, Alan G Ramsay, Matthew Trotter, Anita K Gandhi, Rajesh Chopra, Anjan Thakurta
Lenalidomide is an immunomodulatory agent that has demonstrated clinical benefit for patients with relapsed or refractory mantle cell lymphoma (MCL); however, despite this observed clinical activity, the mechanism of action (MOA) of lenalidomide has not been characterized in this setting. We investigated the MOA of lenalidomide in clinical samples from patients enrolled in the CC-5013-MCL-002 trial (NCT00875667) comparing single-agent lenalidomide versus investigator's choice single-agent therapy and validated our findings in pre-clinical models of MCL...
August 2, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28756771/prognostic-role-of-abo-blood-type-in-patients-with-extranodal-natural-killer-t-cell-lymphoma-nasal-type-a-triple-center-study
#5
Ya-Jun Li, Ping-Yong Yi, Ji-Wei Li, Xian-Ling Liu, Tian Tang, Pei-Ying Zhang, Wen-Qi Jiang
BACKGROUND: The prognostic significance of ABO blood type for lymphoma is largely unknown. We evaluated the prognostic role of ABO blood type in patients with extranodal natural killer (NK)/T-cell lymphoma (ENKTL). METHODS: We retrospectively analyzed clinical data of 697 patients with newly diagnosed ENKTL from three cancer centers. The prognostic value of ABO blood type was evaluated using Kaplan-Meier curves and Cox proportional hazard models. The prognostic values of the International Prognostic Index (IPI) and the Korean Prognostic Index (KPI) were also evaluated...
July 31, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28754096/successful-treatment-with-anti-programmed-death-1-antibody-in-a-relapsed-natural-killer-t-cell-lymphoma-patient-with-multi-line-resistance-a-case-report
#6
Jianping Lai, Peng Xu, Xiaoliu Jiang, Shan Zhou, Anwen Liu
BACKGROUND: Extranodal natural killer/T-cell lymphoma (NKTCL), nasal type, is an aggressive malignancy with poor prognosis. Currently, there is no recommended standard therapy for relapsed NKTCL. CASE PRESENTATION: A 37-year-old woman with lymphadenopathy was diagnosed with NKTCL by biopsy of an enlarged lymph node on the right side of her neck. Enhanced computed tomography revealed no metastasis. For this patient, we performed continuous chemotherapy followed by radiotherapy; however, nodule biopsy showed metastases in her lower limbs 3 months after radiotherapy, which confirmed disease progression...
July 28, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28748192/extranodal-nk-t-cell-lymphoma-nasal-type-presenting-as-refractory-pseudomonas-aeruginosa-facial-cellulitis
#7
Erika Reategui Schwarz, Katerina G Oikonomou, Megan Reynolds, Juliette Kim, Rajeev L Balmiki, Stephanie A Sterling
Extranodal natural killer T-cell lymphoma, nasal type (ENKL), formerly called lethal midline granuloma or angiocentric T-cell lymphoma, is a predominantly extranodal non-Hodgkin lymphoma characterized by vascular damage, necrosis, and an association with Epstein-Barr virus. In the United States, it is more frequently seen in Asian, Asian Pacific Islander, and Hispanic descent populations and is more prevalent in males in their fifth decade. Clinical presentation of NK nasal lymphoma most commonly involves epistaxis; obstruction; discharge; destructive mass in sinuses, palate, and nose; and skin ulceration...
July 2017: Journal of Investigative Medicine High Impact Case Reports
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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