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https://www.readbyqxmd.com/read/28546760/analysis-of-immune-status-after-iodine-125-permanent-brachytherapy-in-prostate-cancer
#1
E Du, Lin Wang, Chang-Ying Li, Chang-Wen Zhang, Yan-Chun Qu, Ran-Lu Liu, Yong Xu, Kuo Yang, Zhi-Hong Zhang
BACKGROUND: Permanent prostate brachytherapy (PPB) is an effective treatment choice for low and intermediate risk prostate cancer (PCa). However, the impact of PPB on tumor immune status is still poorly understood. This study aimed to assess the immune status in PCa patients before and at different time points after PPB (1, 3, 6, and 12 months). METHODS: Blood was collected from 32 patients with low and intermediate risk PCa and 12 healthy volunteers. The frequency of immunocompetent cells was identified by flow cytometry...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28544545/cytoprotective-encapsulation-of-individual-jurkat-t-cells-within-durable-tio2-shells-for-t-cell-therapy
#2
Wongu Youn, Eun Hyea Ko, Mi-Hee Kim, Matthew Park, Daewha Hong, Gulaim A Seisenbaeva, Vadim G Kessler, Insung S Choi
Lymphocytes, such as T cells and natural killer (NK) cells, have therapeutic promises in adoptive cell transfer (ACT) therapy, where the cells are activated and expanded in vitro, and then infused into a patient. However, the in vitro preservation of labile lymphocytes during transfer, manipulation, and storage has been one of the bottlenecks in the development and commercialization of therapeutic lymphocytes. Herein, we suggest a "cell-in-shell" (a.k.a. artificial spore) strategy to enhance the cell viability in the practical settings, while maintaining biological activities for therapeutic efficacy...
May 25, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28536806/increased-infiltration-of-natural-killer-and-t-cells-in-colorectal-liver-metastases-improves-patient-overall-survival
#3
Matteo Donadon, Kelly Hudspeth, Matteo Cimino, Luca Di Tommaso, Max Preti, Paolo Tentorio, Massimo Roncalli, Domenico Mavilio, Guido Torzilli
INTRODUCTION: Cancer heterogeneity and degree of intra-tumoral immune cells represent variables affecting overall survival (OS). The present study investigated the impact of natural killer (NK) and T cells infiltrating colorectal liver metastases (CLM) in patients undergoing hepatectomy after neoadjuvant chemotherapy. METHODS: The frequencies of intra-tumoral, marginal, and peritumoral CD3+ T and NKp46+ NK cells were determined for 121 patients. OS was assessed in relation to prognostic factors...
May 23, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28534375/effect-of-the-combination-treatment-of-high-intensity-focused-ultrasound-and-cryocare-knife-in-advanced-liver-cancer
#4
Yuan-Peng Zhai, Yan Wang
PURPOSE: To analyze the effect of the combination treatment of high-intensity focused ultrasound (HIFU) and cryocare knife in advanced liver cancer. METHODS: 74 patients with advanced liver cancer were divided into the observation group (40 cases) and the control group (34 cases). Patients in the control group were treated with simple transcatheter arterial chemoembolization (TACE), while those in the observation group were given the combination treatment of HIFU and cryocare knife...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28515320/recognition-of-nectin-2-by-the-natural-killer-cell-receptor-tigit
#5
Felix A Deuss, Benjamin S Gully, Jamie Rossjohn, Richard Berry
T cell immunoglobulin and ITIM domain (TIGIT) is an inhibitory receptor expressed on the surface of natural killer (NK) cells. TIGIT recognizes nectin and nectin-like adhesion molecules and thus plays a critical role in the innate immune response to malignant transformation. While the TIGIT nectin-like protein-5 (necl-5) interaction is well understood, how TIGIT engages nectin-2, a receptor that is broadly over-expressed in breast and ovarian cancer, remains unknown. Here, we show that TIGIT bound to the immunoglobulin domain of nectin-2 that is most distal from the membrane with an affinity of 6 μM, which was moderately lower than the affinity observed for the TIGIT-necl-5 interaction (3...
May 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28513532/natural-killer-cells-response-to-il-2-stimulation-is-distinct-between-ascites-with-the-presence-or-absence-of-malignant-cells-in-ovarian-cancer-patients
#6
Rodrigo Fernandes da Silva, Adriana Yoshida, Daniela Maira Cardozo, Rodrigo Menezes Jales, Silke Paust, Sophie Derchain, Fernando Guimarães
Peritoneal ascites are a distinguishable feature of patients with advanced epithelial ovarian cancer (EOC). The presence of different lymphocyte subsets has been reported in EOC-associated ascites, which also can or not contain malignant cells. The goal of this study was to analyze the functional characteristics of natural killer (NK) cells from EOC-associated ascites in terms of their expression of activating receptors and ascites' contents of lymphocyte subtypes, cytokine profile and presence of EOC cells...
May 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28507799/characterization-of-a-human-anti-tumoral-nk-cell-population-expanded-after-bcg-treatment-of-leukocytes
#7
Eva M García-Cuesta, Gloria Esteso, Omodele Ashiru, Sheila López-Cobo, Mario Álvarez-Maestro, Ana Linares, Mei M Ho, Luis Martínez-Piñeiro, Hugh T Reyburn, Mar Valés-Gómez
Immunotherapy, via intra-vesical instillations of BCG, is the therapy of choice for patients with high-risk non-muscle invasive bladder cancer. The subsequent recruitment of lymphocytes and myeloid cells, as well as the release of cytokines and chemokines, is believed to induce a local immune response that eliminates these tumors, but the detailed mechanisms of action of this therapy are not well understood. Here, we have studied the phenotype and function of the responding lymphocyte populations as well as the spectrum of cytokines and chemokines produced in an in vitro model of human peripheral blood mononuclear cells (PBMCs) co-cultured with BCG...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28501510/surface-engineering-for-lymphocyte-programming
#8
Elana Ben-Akiva, Randall A Meyer, David R Wilson, Jordan J Green
The once nascent field of immunoengineering has recently blossomed to include approaches to deliver and present biomolecules to program diverse populations of lymphocytes to fight disease. Building upon improved understanding of the molecular and physical mechanics of lymphocyte activation, varied strategies for engineering surfaces to activate and deactivate T-Cells, B-Cells and natural killer cells are in preclinical and clinical development. Surfaces have been engineered at the molecular level in terms of the presence of specific biological factors, their arrangement on a surface, and their diffusivity to elicit specific lymphocyte fates...
May 10, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28501128/immunochemotherapy-benefits-in-gastric-cancer-patients-stratified-by-programmed-death-1-ligand-1
#9
Jun-Te Hsu, Chih-Sin Hsu, Puo-Hsien Le, Tse-Ching Chen, Wen-Chi Chou, Chun-Yen Lin, Ta-Sen Yeh
BACKGROUND: Effectiveness of protein-bound polysaccharide K (PSK) during adjuvant chemotherapy in gastric cancer patients expressing programmed death-1 ligand 1 (PD-L1) has not been investigated. Investigating this might help in triaging candidates eligible to immunochemotherapy. MATERIALS AND METHODS: In total, 918 patients with stages II and III gastric cancer, undergoing curative gastrectomy, and receiving adjuvant chemotherapy were enrolled in a prospective database, and the patients were retrospectively reviewed...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28500490/effects-of-definitive-and-salvage-radiotherapy-on-the-distribution-of-lymphocyte-subpopulations-in-prostate-cancer-patients
#10
Eva K Sage, Thomas E Schmid, Hans Geinitz, Mathias Gehrmann, Michael Sedelmayr, Marciana N Duma, Stephanie E Combs, Gabriele Multhoff
BACKGROUND: Radiotherapy (RT) is an established treatment for patients with primary and recurrent prostate cancer. Herein, the effects of definitive and salvage RT on the composition of lymphocyte subpopulations were investigated in patients with prostate cancer to study potential immune effects. PATIENTS AND METHODS: A total of 33 prostate cancer patients were treated with definitive (n = 10) or salvage RT (n = 23) after biochemical relapse. The absolute number of lymphocytes and the distribution of lymphocyte subpopulations were analyzed by multiparameter flow cytometry before RT, at the end of RT, and in the follow-up period...
May 12, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28497777/phase-i-ii-clinical-trial-to-assess-safety-and-efficacy-of-intratumoral-and-subcutaneous-injection-of-hvj-e-in-castration-resistant-prostate-cancer-patients
#11
K Fujita, Y Nakai, A Kawashima, T Ujike, A Nagahara, T Nakajima, T Inoue, C M Lee, M Uemura, Y Miyagawa, Y Kaneda, N Nonomura
Inactivated Sendai virus particles (hemagglutinating virus of Japan envelope (HVJ-E)) have a novel antitumor effect: HVJ-E fused to prostate cancer cells via cell surface receptor causes apoptosis of prostate cancer cells in vitro and in vivo. HVJ-E also induces antitumor immunity by activating natural killer (NK) cells and cytotoxic T cells and suppressing regulatory T cells in vivo. We conducted an open-label, single-arm, phase I/II clinical trial in patients with castration-resistant prostate cancer (CRPC) to determine the safety and efficacy of intratumoral and subcutaneous injection of HVJ-E...
May 12, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28495792/cd70-reverse-signaling-enhances-nk-cell-function-and-immunosurveillance-in-cd27-expressing-b-cell-malignancies
#12
Mohamad F Al Sayed, Carla A Ruckstuhl, Tamara Hilmenyuk, Christina Claus, Jean-Pierre Bourquin, Beat C Bornhauser, Ramin Radpour, Carsten Riether, Adrian F Ochsenbein
The interaction of the tumor necrosis factor receptor (TNFR) CD27 with its ligand CD70 is an emerging target to treat cancer. CD27 signaling provides costimulatory signals to cytotoxic T cells but also increases the frequency of regulatory T cells (Tregs). Similar to other TNFR-ligands, CD70 has been shown to initiate intracellular signaling pathways (CD70 reverse signaling). CD27 is expressed on a majority of B cell non-Hodgkin lymphoma (NHL), but its role in the immune control of lymphoma and leukemia is unknown...
May 11, 2017: Blood
https://www.readbyqxmd.com/read/28488245/chimeric-antigen-receptor-car-modified-natural-killer-cell-based-immunotherapy-and-immunological-synapse-formation-in-cancer-and-hiv
#13
REVIEW
Dongfang Liu, Shuo Tian, Kai Zhang, Wei Xiong, Ndongala Michel Lubaki, Zhiying Chen, Weidong Han
Cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells contribute to the body's immune defenses. Current chimeric antigen receptor (CAR)-modified T cell immunotherapy shows strong promise for treating various cancers and infectious diseases. Although CAR-modified NK cell immunotherapy is rapidly gaining attention, its clinical applications are mainly focused on preclinical investigations using the NK92 cell line. Despite recent advances in CAR-modified T cell immunotherapy, cost and severe toxicity have hindered its widespread use...
May 9, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28487696/natural-killer-cells-in-graft-versus-host-disease-after-allogeneic-hematopoietic-cell-transplantation
#14
REVIEW
Federico Simonetta, Maite Alvarez, Robert S Negrin
Allogeneic hematopoietic cell transplantation (HCT) is a well-established therapeutic modality effective for a variety of hematological malignancies but, unfortunately, is associated with significant morbidity and mortality related to cancer relapse as well as to transplant-related complications including graft-versus-host-disease (GvHD). Natural killer (NK) cells are the first donor-derived lymphocyte subset to recover after HCT, and their crucial role in protection against cancer relapse and infections is well established...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28487385/immune-related-gene-expression-profiling-after-pd-1-blockade-in-non-small-cell-lung-carcinoma-head-and-neck-squamous-cell-carcinoma-and-melanoma
#15
Aleix Prat, Alejandro Navarro, Laia Paré, Noemí Reguart, Patricia Galvan, Tomás Pascual, Alex Martínez, Paolo Nuciforo, Laura Comerma, Llucia Alos, Nuria Pardo, Susana Cedrés, Cheng Fan, Joel S Parker, Lydia Gaba, Ivan Victoria, Nuria Viñolas, Ana Vivancos, Ana Arance, Enriqueta Felip
Antibody targeting of the immune checkpoint receptor PD1 produces therapeutic activity in a variety of solid tumors, but most patients exhibit partial or complete resistance to treatment for reasons that are unclear. In this study, we evaluated tumor speciments from 65 patients with melanoma, lung non-squamous, squamous cell lung or head and neck cancers who were treated with the approved PD1 targeting antibodies pembrolizumab or nivolumab. Tumor RNA before anti-PD1 therapy was analyzed on the nCounter system using the PanCancer 730-Immune Panel, and we identified 23 immune-related genes or signatures linked to response and progression-free survival (PFS)...
May 9, 2017: Cancer Research
https://www.readbyqxmd.com/read/28485170/correlation-between-circulating-tumor-cells-egfr-expression-and-t-cell-subsets-in-advanced-non-small-cell-lung-cancer-patients-after-tyrosine-kinase-inhibitor-treatment
#16
C Tu, Y Zhu, B Jiang, W He, C Jin
Research indicates that after EGFR-tyrosine kinase inhibitors (EGFR-TKIs) treatment of non-small cell lung cancer (NSCLC), patient immune function significantly improved, and that circulating tumor cells (CTCs) measurements and peripheral blood epidermal growth factor receptor (EGFR) mutation data can guide TKIs treatment. Sixty-six advanced NSCLC patients treated with TKIs were enrolled and CTCs, EGFR expression, T cell subsets and natural killer (NK) cells in peripheral blood were measured using flow cytometry before and after treatment and assessed with respect to patient prognosis...
May 9, 2017: Neoplasma
https://www.readbyqxmd.com/read/28485156/the-effects-of-lentivirus-mediated-shrna-interference-targeting-mcl-1-on-growth-of-nk-t-cell-lymphoma
#17
X Zhang, C Shi, G Yue, H Guo, X Fu, X Li, L Li, X Wang, Z Li, Y Chang, M Zhang, Q Chen
Myeloid leukemia-1 (Mcl-1) gene has been reported as an important factor in various types of cancer, but little research was processed on natural killer (NK)/T-cell lymphoma, a kind of a highly aggressive disease with a poor prognosis. Here we investigated the expression of Mcl-1 in seven lymphoma cell lines and its potential role as a molecular drug target for NK/T-cell lymphoma therapy by using lentivirus-mediated shRNA interference targeting Mcl-1 (lenti-shMcl-1). In our study, the expression of Mcl-1 in different lymphoma cell lines were evaluated firstly, after that lenti-shMcl-1 was constructed and transduced into NK/T-cell lymphoma cell line SNK-6 which had a high level expression of Mcl-1...
May 9, 2017: Neoplasma
https://www.readbyqxmd.com/read/28484463/immune-effector-recovery-in-chronic-myeloid-leukemia-and-treatment-free-remission
#18
REVIEW
Amy Hughes, Agnes S M Yong
Chronic myeloid leukemia (CML) is a hematological cancer, characterized by a reciprocal chromosomal translocation between chromosomes 9 and 22 [t(9;22)], producing the Bcr-Abl oncogene. Tyrosine kinase inhibitors (TKIs) represent the standard of care for CML patients and exert a dual mode of action: direct oncokinase inhibition and restoration of effector-mediated immune surveillance, which is rendered dysfunctional in CML patients at diagnosis, prior to TKI therapy. TKIs such as imatinib, and more potent second-generation nilotinib and dasatinib induce a high rate of deep molecular response (DMR, BCR-ABL1 ≤ 0...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28483693/combined-delivery-of-a-tgf-%C3%AE-inhibitor-and-an-adenoviral-vector-expressing-interleukin-12-potentiates-cancer-immunotherapy
#19
Jiayu Jiang, Yuandong Zhang, Ke Peng, Qin Wang, Xiaoyu Hong, Hanmei Li, Gerui Fan, Zhirong Zhang, Tao Gong, Xun Sun
Cancer immunotherapy appears a promising future, but it can be thwarted by secretion of immunosuppressive factors, such as transforming growth factor-β (TGF-β), which inhibits local immune responses to tumors. To weaken immune resistance of tumors and simultaneously strengthen immune responses, we developed a multifunctional polymer that could co-deliver hydrophobic TGF-β inhibitor and an adenovirus gene vector to tumor sites. This co-delivery system sustainably released TGF-β inhibitor SB-505124 and effectively transferred the adenovirus vector carrying the interleukin-12 gene...
May 5, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28480327/humanized-mice-with-subcutaneous-human-solid-tumors-for-immune-response-analysis-of-vaccinia-virus-mediated-oncolysis
#20
Desislava Tsoneva, Boris Minev, Alexa Frentzen, Qian Zhang, Anja K Wege, Aladar A Szalay
Oncolytic vaccinia virus (VACV) therapy is an alternative cancer treatment modality that mediates targeted tumor destruction through a tumor-selective replication and an induction of anti-tumor immunity. We developed a humanized tumor mouse model with subcutaneous human tumors to analyze the interactions of VACV with the developing tumors and human immune system. A successful systemic reconstitution with human immune cells including functional T cells as well as development of tumors infiltrated with human T and natural killer (NK) cells was observed...
June 16, 2017: Molecular Therapy Oncolytics
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