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adoptive cell transfer

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https://www.readbyqxmd.com/read/28741259/adoptive-transfer-of-autoimmune-splenic-dendritic-cells-to-lupus-prone-mice-triggers-a-b-lymphocyte-humoral-response
#1
Daniela Sauma, Natalia Crisóstomo, Camila Fuentes, María Alejandra Gleisner, Yessia Hidalgo, María José Fuenzalida, Mario Rosemblatt, María Rosa Bono
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by increased autoantibody production that leads to multiple tissue injuries. Dendritic cells (DCs) are important orchestrators of immune responses and key components in fine-tuning the balance between tolerance and immunity. However, their role in autoimmune disorders such as SLE remains uncertain. We analyzed the contribution of DCs in triggering SLE by adoptively transferring splenic DCs from aged autoimmune [NZB×NZW]F1 (BWF1) mice to young healthy BWF1 mice...
July 25, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28739590/mast-cells-granular-contents-are-crucial-for-deep-vein-thrombosis-in-mice
#2
Tatyana Ponomaryov, Holly Payne, Larissa Fabritz, Denisa D Wagner, Alexander Brill
Rationale: Deep vein thrombosis (DVT) and its complication pulmonary embolism have high morbidity reducing quality of life and leading to death. Cellular mechanisms of DVT initiation remain poorly understood. Objective: We sought to determine the role of mast cells (MCs) in DVT initiation and validate MCs as a potential target for DVT prevention. Methods and Results: In a mouse model, DVT was induced by partial ligation (stenosis) of the inferior vena cava (IVC). We demonstrated that two strains of mice deficient for MCs were completely protected from DVT...
July 24, 2017: Circulation Research
https://www.readbyqxmd.com/read/28737510/lymphocytes-transiently-expressing-virus-specific-t-cell-receptors-reduce-hepatitis-b-virus-infection
#3
Janine Kah, Sarene Koh, Tassilo Volz, Erica Ceccarello, Lena Allweiss, Marc Lütgehetmann, Antonio Bertoletti, Maura Dandri
Adoptive transfer of T cells engineered to express a hepatitis B virus-specific (HBV-specific) T cell receptor (TCR) may supplement HBV-specific immune responses in chronic HBV patients and facilitate HBV control. However, the risk of triggering unrestrained proliferation of permanently engineered T cells raises safety concerns that have hampered testing of this approach in patients. The aim of the present study was to generate T cells that transiently express HBV-specific TCRs using mRNA electroporation and to assess their antiviral and pathogenetic activity in vitro and in HBV-infected human liver chimeric mice...
July 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28735493/generating-and-expanding-autologous-chimeric-antigen-receptor-t-cells-from-patients-with-acute-myeloid-leukemia
#4
Saad S Kenderian, Carl H June, Saar Gill
Adoptive transfer of genetically engineered T cells can lead to profound and durable responses in patients with hematologic malignancies, generating enormous enthusiasm among scientists, clinicians, patients, and biotechnology companies. The success of adoptive cellular immunotherapy depends upon the ability to manufacture good quality T cells. We discuss here the methodologies and reagents that are used to generate T cells for the preclinical study of chimeric antigen receptor T cell therapy for acute myeloid leukemia (AML)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28733529/immunotherapy-of-wap-tnp-mice-with-early-stage-mammary-gland-tumors
#5
Michael Bruns, Wolfgang Deppert
The SV40 transgenic BALB/c mouse based WAP-T/WAP-TNP model for triple-negative breast cancer allows the analysis of parameters influencing immunotherapeutic approaches. Except for WAP-TNP tumors expressing the immune-dominant LCMV NP-epitope within SV40 T-antigen (T-AgNP) which is not expressed by T-Ag of WAP-T tumors, the tumors are extremely similar. Comparative anti-PD1/PD-L1 immunotherapy of WAP-T and WAP-TNP mice supported the hypothesis that the immunogenicity of tumor antigen T-cell epitopes strongly influences the success of immune checkpoint blockade therapy, with highly immunogenic T-cell epitopes favoring rapid CTL exhaustion...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733263/consolidation-therapy-for-newly-diagnosed-pediatric-high-risk-neuroblastoma-patients-using-busulfan-melphalan-autologous-hematopoietic-cell-transplant-anti-gd2-antibody-gm-csf-il-2-and-haploidentical-nk-cells
#6
Aimee C Talleur, Brandon M Triplett, Sara Federico, Ewelina Mamcarz, William Janssen, Jianrong Wu, David Shook, Wing Leung, Wayne L Furman
The treatment of pediatric high-risk neuroblastoma is intensive and multimodal. Despite the introduction of immunotherapy for minimal residual disease, survival rates remain suboptimal and new therapies are needed. As part of a phase 2 trial, we are using a consolidation therapy regimen which combines a busulfan/melphalan conditioning schema, autologous hematopoietic cell transplant (AHCT), and experimental immunotherapy with hu14.18K322A (a humanized anti-GD2 monoclonal antibody), GM-CSF, and IL-2, with or without the adoptive transfer of haploidentical natural killer cells (NKs)...
July 18, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28732278/advances-of-small-molecule-targeting-of-kinases
#7
REVIEW
Norbert Berndt, Rezaul M Karim, Ernst Schönbrunn
Reversible protein phosphorylation regulates virtually all aspects of life in the cell. As a result, dysregulation of protein kinases, the enzymes responsible for transferring phosphate groups from ATP to proteins, are often the cause or consequence of many human diseases including cancer. Almost three dozen protein kinase inhibitors (PKIs) have been approved for clinical applications since 1995, the vast majority of them for the treatment of cancer. According to the NCI, there are more than 100 types of cancer...
July 18, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28731327/donor-acceptor-properties-of-a-single-molecule-altered-by-on-surface-complex-formation
#8
Tobias Meier, Rémy Pawlak, Shigeki Kawai, Yan Geng, Xunshan Liu, Silvio Decurtins, Prokop Hapala, Alexis Baratoff, Shi-Xia Liu, Pavel Jelinek, Ernst Meyer, Thilo Glatzel
Electron donor-acceptor molecules are of outstanding interest in molecular electronics and organic solar cells for their intramolecular charge transfer controlled via electrical or optical excitation. The preservation of their electronic character in the ground state upon adsorption on a surface is cardinal for their implementation in such single-molecule devices. Here, we investigate by atomic force microscopy and scanning tunneling microscopy a prototypical system consisting of a π-conjugated tetrathiafulvalene-fused dipyridophenazine molecule adsorbed on thin NaCl films on Cu(111)...
July 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28729290/choroidal-%C3%AE-%C3%AE-t-cells-in-protection-against-retinal-pigment-epithelium-and-retinal-injury
#9
Zhenyang Zhao, Yuejin Liang, Yin Liu, Pei Xu, Miles J Flamme-Wiese, Deming Sun, Jiaren Sun, Robert F Mullins, Yan Chen, Jiyang Cai
γδ T cells located near the epithelial barrier are integral components of local inflammatory and innate immune responses. We have previously reported the presence of choroidal γδ T cells in a model of chronic degeneration of the retinal pigment epithelium (RPE). The goals of the current study were to further define the functions of choroidal γδ T cells and to explore the underlying mechanisms of their action. Our data demonstrate that choroidal γδ T cells are activated by RPE injury in response to NaIO3 treatment, and that they express genes that encode immunosuppressive cytokines, such as IL-4 and IL-10...
July 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28723951/cd8-t-cells-provide-immune-protection-against-murine-disseminated-endotheliotropic-orientia-tsutsugamushi-infection
#10
Guang Xu, Nicole L Mendell, Yuejin Liang, Thomas R Shelite, Yenny Goez-Rivillas, Lynn Soong, Donald H Bouyer, David H Walker
Scrub typhus, caused by a Gram-negative obligately intracellular coccobacillus, Orientia tsutsugamushi, is a long neglected but important tropical disease. Orientia tsutsugamushi causes illness in one million people each year, and 1 billion people are at risk. Without appropriate diagnosis and treatment, the disease can cause severe multiorgan failure with a case fatality rate of 7-15%. The current gaps in knowledge of immunity include the unknown mechanisms of host immunity to O. tsutsugamushi. Using an intravenous (i...
July 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28720143/mhc-class-ii-expression-and-potential-antigen-presenting-cells-in-the-retina-during-experimental-autoimmune-uveitis
#11
Deborah A Lipski, Rémi Dewispelaere, Vincent Foucart, Laure E Caspers, Matthieu Defrance, Catherine Bruyns, François Willermain
BACKGROUND: Controversy exists regarding which cell types are responsible for autoantigen presentation in the retina during experimental autoimmune uveitis (EAU) development. In this study, we aimed to identify and characterize the retinal resident and infiltrating cells susceptible to express major histocompatibility complex (MHC) class II during EAU. METHODS: EAU was induced in C57BL/6 mice by adoptive transfer of autoreactive lymphocytes from IRBP1-20-immunized animals...
July 18, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28719798/chimeric-antigen-receptor-t-cells-for-b-cell-malignancies
#12
REVIEW
Eben I Lichtman, Gianpietro Dotti
The adoptive transfer of T-lymphocytes modified to express chimeric antigen receptors (CAR-Ts) has produced impressive clinical responses among patients with B-cell malignancies. This has led to a rapid expansion in the number of clinical trials over the past several years. Although CD19-specific CAR-Ts are the most extensively evaluated, CAR-Ts specific for other B-cell-associated targets have also shown promise. However, despite this success, toxicities associated with CAR-T administration remain a significant concern...
June 29, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28713896/an-optimized-gene-transfection-system-in-weri-rb1-cells
#13
Ying Liu, Zhigang Fan, Kang Li, Fei Deng, Yunfan Xiong, Meixin Liang, Jian Ge
The pathogenesis of Rb1 gene inactivation indicates that gene therapy could be a promising treatment for retinoblastoma. An appropriate gene transfer system is the basis for successful gene therapy; however, little attention has been given to an effective gene transfer system for retinoblastoma therapy in previous studies. This study was designed to provide an optimized transgene system for WERI‑Rb1 cells (W-RBCs). Green fluorescent protein (GFP) was adopted as a reporter. Four classic viral vectors based on retroviruses, recombinant adeno-associated viruses (rAAV2, rAAV2/1), lentiviruses (LVs) and a novel non-viral vector X-treme HP reagent were adopted for W-RBC gene transfection...
July 6, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713380/targeting-the-human-t-cell-inducible-costimulator-molecule-with-a-monoclonal-antibody-prevents-graft-vs-host-disease-and-preserves-graft-vs-leukemia-in-a-xenograft-murine-model
#14
Aude Burlion, Simon Brunel, Nicolas Y Petit, Daniel Olive, Gilles Marodon
BACKGROUND: Graft-vs-host disease (GVHD) is a major complication of allogenic bone marrow transplantation (BMT). Targeting costimulatory molecules with antagonist antibodies could dampen the excessive immune response that occurs, while preserving the beneficial graft vs leukemia (GVL) of the allogeneic response. Previous studies using a mouse model of GVHD have shown that targeting the T-cell Inducible COStimulator (ICOS, CD278) molecule is beneficial, but it is unclear whether the same applies to human cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28711285/anti-il-21-monoclonal-antibody-combined-with-liraglutide-effectively-reverses-established-hyperglycemia-in-mouse-models-of-type-1-diabetes
#15
Anna K Rydén, Nikole R Perdue, Philippe P Pagni, Claire B Gibson, Sowbarnika S Ratliff, Rikke K Kirk, Travis J Friesen, Claus Haase, Ken Coppieters, Matthias G von Herrath, Tamar E Boursalian
Immunotherapy for type 1 diabetes (T1D) has previously focused on suppressing the autoimmune response against pancreatic beta cells to preserve endogenous insulin production and regulate glucose levels. With increased attention toward combination therapy strategies, studies indicate the multifunctional cytokine interleukin-21 (IL-21) may be a suitable target as an immuno-modulatory arm, while glucagon-like peptide-1 receptor (GLP-1R) agonists may be appropriate as a beta cell protective arm in combination therapy for T1D...
July 12, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28711032/influence-of-the-number-and-interval-of-treatment-cycles-on-cytokine-induced-killer-cells-and-their-adjuvant-therapeutic-effects-in-advanced-non-small-cell-lung-cancer-nsclc
#16
Yuanlong Gu, Huimin Lv, Juan Zhao, Qi Li, Guannan Mu, Jiade Li, Jiazi Wuyang, Ge Lou, Ruitao Wang, Yanqiao Zhang, Xiaoyi Huang
OBJECTIVE: Cytokine-induced killer (CIK) cells have important therapeutic effects in adoptive cell transfer (ACT) for the treatment of various malignancies. In this study, we focused on in vitro expansion of CIK cells and their clinical efficacy in combination with chemotherapy in patients with advanced non-small-cell lung cancer (NSCLC). METHODS: A total of 64 patients with NSCLC (enrolled from 2011 to 2012), including 32 patients who received chemotherapy alone or with sequential radiotherapy (conventional treatment, control group) and 32 patients who received conventional treatment and sequential CIK infusion (study group), were retrospectively analyzed...
July 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28710254/the-plasticity-and-stability-of-regulatory-t-cells-during-viral-induced-inflammatory-lesions
#17
Siddheshvar Bhela, Siva Karthik Varanasi, Ujjaldeep Jaggi, Sarah S Sloan, Naveen K Rajasagi, Barry T Rouse
Ocular infection with HSV causes a chronic T cell-mediated inflammatory lesion in the cornea. Lesion severity is affected by the balance of different CD4 T cell subsets, with greater severity occurring when the activity of regulatory T cells (Tregs) is compromised. In this study, fate-mapping mice were used to assess the stability of Treg function in ocular lesions. We show that cells that were once Foxp3(+) functional Tregs may lose Foxp3 and become Th1 cells that could contribute to lesion expression. The instability primarily occurred with IL-2R(lo) Tregs and was shown, in part, to be the consequence of exposure to IL-12...
July 14, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28709377/combining-graphical-and-analytical-methods-with-molecular-simulations-to-analyze-time-resolved-fret-measurements-of-labeled-macromolecules-accurately
#18
Thomas-Otavio Peulen, Oleg Opanasyuk, Claus A M Seidel
Förster resonance energy transfer (FRET) measurements from a donor, D, to an acceptor, A, fluorophore are frequently used in vitro and in live cells to reveal information on the structure and dynamics of DA-labeled macromolecules. Accurate descriptions of FRET-measurements by molecular models are complicated because the fluorophores are usually coupled to the macromolecule via flexible long linkers allowing for diffusional exchange between multiple states with different fluorescence properties caused by distinct environmental quenching, dye mobilities, and variable DA-distances...
July 14, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28708802/characterization-and-expansion-of-autologous-gmp-ready-regulatory-t-cells-for-treg-based-cell-therapy-in-patients-with-ulcerative-colitis
#19
Caroline J Voskens, Anika Fischer, Susanne Roessner, Carmen Lorenz, Simon Hirschmann, Raja Atreya, Clemens Neufert, Imke Atreya, Markus F Neurath, Gerold Schuler
BACKGROUND: A local imbalance between regulatory (Treg) and effector T cells is believed to play a major role in gut-specific inflammation, including ulcerative colitis (UC). Restoration of this balance through an adoptive Treg transfer is an attractive new treatment approach in patients who are refractory to current standard therapies. It was our goal to develop a Good Manufacturing Practices (GMP)-conform protocol for expansion of UC Treg cells as a rational backbone for future studies on Treg therapy in UC...
August 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28706012/local-delivery-of-oncovex-mgm-csf-generates-systemic-anti-tumor-immune-responses-enhanced-by-cytotoxic-t-lymphocyte-associated-protein-blockade
#20
Achim K Moesta, Keegan Cooke, Julia Piasecki, Petia Mitchell, James B Rottman, Karen Fitzgerald, Jinghui Zhan, Becky Yang, Tiep Le, Brian Belmontes, Oluwatayo F Ikotun, Kim Merriam, Charles Glaus, Kenneth Ganley, David H Cordover, Andrea M Boden, Rafael Ponce, Courtney Beers, Pedro J Beltran
Talimogene laherparepvec, a new oncolytic immunotherapy, has been recently approved for the treatment of melanoma. Using a murine version of the virus we characterized local and systemic anti-tumor immune responses driving efficacy in murine syngeneic models.<br /><br />Experimental Design: The activity of talimogene laherparepvec was characterized against melanoma cell lines using an in vitro viability assay. Efficacy of OncoVEX(mGM-CSF) (talimogene laherparepvec with the mouse granulocyte-macrophage colony-stimulating factor transgene) alone or in combination with checkpoint blockade was characterized in A20 and CT-26 contralateral murine tumor models...
July 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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