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Dendritic Cell Therapy

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https://www.readbyqxmd.com/read/27913524/cellular-and-vaccine-immunotherapy-for-multiple-myeloma
#1
Alfred L Garfall, Edward A Stadtmauer
Allogeneic hematopoietic cell transplantation and donor lymphocyte infusion for multiple myeloma (MM) can induce graft-versus-myeloma immunity and long-term survivorship, but limited efficacy and associated toxicities have prevented its widespread use. Cellular immunotherapies and vaccines seek to induce more specific, reliable, and potent antimyeloma immune responses with less treatment-related risk than is possible with allogeneic transplantation. Advances in molecular biology, and basic and applied immunology, have led to promising approaches such as genetically engineered T cells with chimeric antigen receptors and T-cell receptors targeting myeloma-specific epitopes, vaccine primed ex vivo expanded autologous T cells, expanded marrow-infiltrating lymphocytes, and plasma cell/dendritic cell fusion vaccines...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913457/treatment-of-blastic-plasmacytoid-dendritic-cell-neoplasm
#2
Jill M Sullivan, David A Rizzieri
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare myeloid malignancy with no defined standard of care. BPDCN presents most commonly with skin lesions with or without extramedullary organ involvement before leukemic dissemination. As a result of its clinical ambiguity, differentiating BPDCN from benign skin lesions or those of acute myeloid leukemia with leukemia cutis is challenging. BPDCN is most easily defined by the phenotype CD4(+)CD56(+)CD123(+)lineage(-)MPO(-), although many patients will present with variable expression of CD4, CD56, or alternate plasmacytoid markers, which compounds the difficulty in differentiating BPDCN from other myeloid or lymphoid malignancies...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27910859/t-cell-programming-in-pancreatic-adenocarcinoma-a-review
#3
REVIEW
Y D Seo, V G Pillarisetty
Despite recent advancements in multimodal therapy, pancreatic ductal adenocarcinoma (PDA) continues to have a dismal prognosis. In the era of burgeoning immune therapies against previously difficult-to-treat malignancies, there has been growing interest in activating the immune system against PDA; however, unlike in other cancers such as melanoma and lymphoma, immunotherapy has not yielded many clinically significant results. To harness these mechanisms for therapeutic use, an in-depth understanding of T-cell programming in the immune microenvironment of PDA must be achieved...
December 2, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27909880/il-9-producing-cells-in-the-development-of-ige-mediated-food-allergy
#4
REVIEW
Dana Shik, Sunil Tomar, Jee-Boong Lee, Chun-Yu Chen, Andrew Smith, Yui-Hsi Wang
Food allergy is a harmful immune reaction driven by uncontrolled type 2 immune responses. Considerable evidence demonstrates the key roles of mast cells, IgE, and TH2 cytokines in mediating food allergy. However, this evidence provides limited insight into why only some, rather than all, food allergic individuals are prone to develop life-threatening anaphylaxis. Clinical observations suggest that patients sensitized to food through the skin early in life may later develop severe food allergies. Aberrant epidermal thymic stromal lymphopoietin and interleukin (IL) 33 production and genetic predisposition can initiate an allergic immune response mediated by dendritic cells and CD4(+)TH2 cells in inflamed skin...
December 1, 2016: Seminars in Immunopathology
https://www.readbyqxmd.com/read/27906162/activation-of-myeloid-and-endothelial-cells-by-cd40l-gene-therapy-supports-t-cell-expansion-and-migration-into-the-tumor-microenvironment
#5
E Eriksson, R Moreno, I Milenova, L Liljenfeldt, L C Dieterich, L Christiansson, H Karlsson, G Ullenhag, S Mangsbo, A Dimberg, R Alemany, A Loskog
CD40 is an interesting target in cancer immunotherapy due to its ability to stimulate Th1 immunity via maturation of dendritic cells and to drive M2 to M1 macrophage differentiation. Pancreatic cancer has a high M2 content that has shown responsive to anti-CD40 agonist therapy and CD40 may thus be a suitable target for immune activation in these patients. In this study, a novel oncolytic adenovirus armed with a trimerized membrane-bound extracellular CD40L (TMZ-CD40L) was evaluated as a treatment of pancreatic cancer...
December 1, 2016: Gene Therapy
https://www.readbyqxmd.com/read/27906000/the-antiviral-compound-bit225-inhibits-hiv-1-replication-in-myeloid-dendritic-cells
#6
Gabriela Khoury, Gary Ewart, Carolyn Luscombe, Michelle Miller, John Wilkinson
BACKGROUND: Previous studies with BIT225 (N-carbamimidoyl-5-(1-methyl-1H-pyrazol-4-yl)-2-naphthamide) have demonstrated a unique antiviral activity that blocks the release of HIV-1 from monocyte-derived macrophages (MDM). Antagonising the ion channel formed by HIV-1 Vpu, BIT225 preferentially targets de novo intracellular virus produced in 'virus-containing compartments' of MDM. In primary infections, dendritic cells (DC) are one of the first cells infected by HIV-1 and can transfer virus to more permissive CD4(+) T cells, making these cells an important target for novel antiviral therapies...
February 8, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27903882/cap-analogs-modified-with-1-2-dithiodiphosphate-moiety-protect-mrna-from-decapping-and-enhance-its-translational-potential
#7
Malwina Strenkowska, Renata Grzela, Maciej Majewski, Katarzyna Wnek, Joanna Kowalska, Maciej Lukaszewicz, Joanna Zuberek, Edward Darzynkiewicz, Andreas N Kuhn, Ugur Sahin, Jacek Jemielity
Along with a growing interest in mRNA-based gene therapies, efforts are increasingly focused on reaching the full translational potential of mRNA, as a major obstacle for in vivo applications is sufficient expression of exogenously delivered mRNA. One method to overcome this limitation is chemically modifying the 7-methylguanosine cap at the 5' end of mRNA (m(7)Gppp-RNA). We report a novel class of cap analogs designed as reagents for mRNA modification. The analogs carry a 1,2-dithiodiphosphate moiety at various positions along a tri- or tetraphosphate bridge, and thus are termed 2S analogs...
November 16, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27900517/erratum-to-pulsed-dendritic-cells-for-the-therapy-of-experimental-glioma
#8
I V Chekhonin, O I Gurina, S A Cherepanov, M A Abakumov, K P Ionova, D I Zhigarev, A V Makarov, V P Chekhonin
No abstract text is available yet for this article.
November 29, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27898045/dendritic-cell-based-immunotherapies-to-fight-hiv-how-far-from-a-success-story-a-systematic-review-and-meta-analysis
#9
REVIEW
Antonio Victor Campos Coelho, Ronald Rodrigues de Moura, Anselmo Jiro Kamada, Ronaldo Celerino da Silva, Rafael Lima Guimarães, Lucas André Cavalcanti Brandão, Luiz Cláudio Arraes de Alencar, Sergio Crovella
The scientific community still faces the challenge of developing strategies to cure HIV-1. One of these pursued strategies is the development of immunotherapeutic vaccines based on dendritic cells (DCs), pulsed with the virus, that aim to boost HIV-1 specific immune response. We aimed to review DCs-based therapeutic vaccines reports and critically assess evidence to gain insights for the improvement of these strategies. We performed a systematic review, followed by meta-analysis and meta-regression, of clinical trial reports...
November 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27897220/impact-of-the-microbial-derived-short-chain-fatty-acid-propionate-on-host-susceptibility-to-bacterial-and-fungal-infections-in-vivo
#10
Eleonora Ciarlo, Tytti Heinonen, Jacobus Herderschee, Craig Fenwick, Matteo Mombelli, Didier Le Roy, Thierry Roger
Short chain fatty acids (SCFAs) produced by intestinal microbes mediate anti-inflammatory effects, but whether they impact on antimicrobial host defenses remains largely unknown. This is of particular concern in light of the attractiveness of developing SCFA-mediated therapies and considering that SCFAs work as inhibitors of histone deacetylases which are known to interfere with host defenses. Here we show that propionate, one of the main SCFAs, dampens the response of innate immune cells to microbial stimulation, inhibiting cytokine and NO production by mouse or human monocytes/macrophages, splenocytes, whole blood and, less efficiently, dendritic cells...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895398/dysregulation-of-innate-immunity-in-ulcerative-colitis-patients-who-fail-anti-tumor-necrosis-factor-therapy
#11
Angela C Baird, Dominic Mallon, Graham Radford-Smith, Julien Boyer, Thierry Piche, Susan L Prescott, Ian C Lawrance, Meri K Tulic
AIM: To study the innate immune function in ulcerative colitis (UC) patients who fail to respond to anti-tumor necrosis factor (TNF) therapy. METHODS: Effects of anti-TNF therapy, inflammation and medications on innate immune function were assessed by measuring peripheral blood mononuclear cell (PBMC) cytokine expression from 18 inflammatory bowel disease patients pre- and 3 mo post-anti-TNF therapy. Toll-like receptor (TLR) expression and cytokine production post TLR stimulation was assessed in UC "responders" (n = 12) and "non-responders" (n = 12) and compared to healthy controls (n = 12)...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27893612/the-influence-of-timing-and-frequency-of-adipose-derived-mesenchymal-stem-cell-therapy-on-immunomodulation-outcomes-after-vascularized-composite-allotransplantation
#12
Jan A Plock, Jonas T Schnider, Riccardo Schweizer, Wensheng Zhang, Wakako Tsuji, Matthias Waldner, Mario G Solari, Kacey G Marra, J Peter Rubin, Vijay S Gorantla
BACKGROUND: Cellular therapies for immunomodulation in vascularized composite allotransplantation (VCA) have gained importance due to their potential minimization of immunosuppression. Adipose-derived mesenchymal stem cells (AD-MSCs) especially have shown encouraging potential. We investigated the influence of timing and frequency of AD-MSC-treatment on immunologic and graft survival as well as graft vasculopathy (GV) outcomes after VCA. METHODS: Lewis (LEW) rats received full-mismatched Brown Norway (BN) rat hindlimb transplants...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27892545/erythrocyte-membrane-based-cationic-polymer-mcdna-complexes-as-an-efficient-gene-delivery-system
#13
Ping Huang, Jing Zhao, Chiju Wei, Xiaohu Hou, Pingzhang Chen, Yan Tan, Cheng-Yi He, Zhiyong Wang, Zhi-Ying Chen
Gene therapy has great promise for the treatment of obtained and inherited serious diseases. However, the lack of safe and efficient gene delivery systems remains a barrier for their clinical application. Here, we reported a potential gene delivery vehicle composed of the erythrocyte membrane and cationic polymers, for example the XtremeGENE from Roche and the ε-caprolactone modified polyethylenimine. In addition to high efficiency, this system showed negligible cytotoxicity compared to the two cationic polymers alone in various cell lines, including human embryonic kidney cells (293T), human liver cancer cells (Huh7 and HepG2), murine dendritic cells (DC2...
November 28, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27885866/thymic-derived-tolerizing-dendritic-cells-are-upregulated-in-the-spleen-upon-treatment-with-intravenous-immunoglobulin-in-a-murine-model-of-immune-thrombocytopenia
#14
Rick Kapur, Rukhsana Aslam, Michael Kim, Li Guo, Heyu Ni, George B Segel, John W Semple
Immune thrombocytopenia (ITP) is an autoimmune bleeding disorder characterized by low platelet counts. First-line treatment includes intravenous immunoglobulin (IVIg), however, its working mechanism remains incompletely understood. We investigated splenic and thymic dendritic cell (DC) subsets upon IVIg treatment in a well-characterized active murine model of ITP. During active disease, there was a significant peripheral deficiency of splenic tolerizing SIRPα+ DCs which could be rescued by IVIg therapy, increasing platelet counts...
November 25, 2016: Platelets
https://www.readbyqxmd.com/read/27883001/psoriasis
#15
Jacqueline E Greb, Ari M Goldminz, James T Elder, Mark G Lebwohl, Dafna D Gladman, Jashin J Wu, Nehal N Mehta, Andrew Y Finlay, Alice B Gottlieb
Psoriasis is a chronic, immune-mediated disorder with cutaneous and systemic manifestations and substantial negative effects on patient quality of life. Psoriasis has a strong, albeit polygenic, genetic basis. Whereas approximately half of the accountable genetic effect of psoriasis maps to the major histocompatibility complex, >70 other loci have been identified, many of which implicate nuclear factor-κB, interferon signalling and the IL-23-IL-23 receptor axis. Psoriasis pathophysiology is characterized by abnormal keratinocyte proliferation and immune cell infiltration in the dermis and epidermis involving the innate and adaptive immune systems, with important roles for dendritic cells and T cells, among other cells...
November 24, 2016: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/27879151/overcoming-drug-resistance-with-on-demand-charged-thermoresponsive-dendritic-nanogels
#16
Maria Molina, Stefanie Wedepohl, Enrico Miceli, Marcelo Calderón
AIM: To develop nanogels (NG) able to modulate the encapsulation and release of drugs, in order to circumvent drug resistance mechanisms in cancer cells. MATERIALS & METHODS: Poly-N-isopropylacrylamide-dendritic polyglycerol NG were semi-interpenetrated with 2-acrylamido-2-methylpropane sulfonic acid or (2-dimethylamino) ethyl methacrylate. Physico-chemical properties of the NGs as well as doxorubicin (DOXO) loading and release were characterized. Drug delivery performance was investigated in vitro and in vivo in a multidrug-resistant tumor model...
November 23, 2016: Nanomedicine
https://www.readbyqxmd.com/read/27877052/dendritic-cell-immunotherapy-versus-bevacizumab-plus-irinotecan-in-recurrent-malignant-glioma-patients-a-survival-gain-analysis
#17
Stefan-Alexandru Artene, Adina Turcu-Stiolica, Richard Hartley, Marius Eugen Ciurea, Oana Daianu, Corina Brindusa, Oana Alexandru, Ligia Gabriela Tataranu, Stefana Oana Purcaru, Anica Dricu
BACKGROUND: The bevacizumab and irinotecan protocol is considered a standard treatment regimen for recurrent malignant glioma. Recent advances in immunotherapy have hinted that vaccination with dendritic cells could become an alternative salvage therapy for the treatment of recurrent malignant glioma. METHODS: A search was performed on PubMed, Cochrane Library, Web of Science, ScienceDirect, and Embase in order to identify studies with patients receiving bevacizumab plus irinotecan or dendritic cell therapy for recurrent malignant gliomas...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27875627/immunotherapy-approaches-in-the-treatment-of-malignant-brain-tumors
#18
REVIEW
Anastasie M Dunn-Pirio, Gordana Vlahovic
Glioblastoma is the most common malignant primary brain tumor. Despite standard-of-care treatment, consisting of maximal surgical resection followed by chemoradiation, both morbidity and mortality associated with this disease remain very poor. Therefore, there is an urgent need for more efficacious and well tolerated therapies. Advancing knowledge of the intricate interplay between malignant gliomas and the immune system, coupled with the recent launch of immunotherapy research for other cancers, has led to a veritable increase in immunotherapy investigation for glioblastoma and other malignant gliomas...
November 22, 2016: Cancer
https://www.readbyqxmd.com/read/27870961/design-and-construction-of-multifunctional-hyperbranched-polymers-coated-magnetite-nanoparticles-for-both-targeting-magnetic-resonance-imaging-and-cancer-therapy
#19
Asemeh Mashhadi Malekzadeh, Ali Ramazani, Seyed Jamal Tabatabaei Rezaei, Hassan Niknejad
Magnetic drug targeting is a drug delivery strategy that can be used to improve the therapeutic efficiency on tumor cells and reduce the side effects on normal cells and tissues. The aim in this study is designing a novel multifunctional drug delivery system based on superparamagnetic nanoparticles for cancer therapy. Magnetic nanoparticles were synthesized by coprecipitation of iron oxide followed by coating with poly citric acid (PCA) dendritic macromolecules via bulk polymerization strategy. It was further surface-functionalized with poly(ethylene glycol) (PEG) and then to achieve tumor cell targeting property, folic acid was further incorporated to the surface of prepared carriers via a facile coupling reaction between the hydroxyl end group of the PEG and the carboxyl group of folic acid...
November 10, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27870663/dendritic-cell-subset-expression-in-severe-chronic-rhinosinusitis-with-nasal-polyps
#20
Claudina Perez-Novo, Rogério Pezato
PURPOSE OF REVIEW: Two main pillars are implicated in nasal polyposis development: a severe imbalance in immunomodulation and a mechanical dysfunction because of an abnormal remodeling process. Dendritic cells play a crucial role in the link between innate and adaptive immune response and orchestrating the T-cell response and are implicated in the severe inflammatory process found in nasal polypoid tissue. This review summarizes the existent knowledge about dendritic cells in nasal polyposis...
November 18, 2016: Current Opinion in Allergy and Clinical Immunology
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