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Dendritic cell vaccine

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https://www.readbyqxmd.com/read/28344872/intravenously-usable-fully-serotype-3-oncolytic-adenovirus-coding-for-cd40l-as-an-enabler-of-dendritic-cell-therapy
#1
Sadia Zafar, Suvi Parviainen, Mikko Siurala, Otto Hemminki, Riikka Havunen, Siri Tähtinen, Simona Bramante, Lotta Vassilev, Hongjie Wang, Andre Lieber, Silvio Hemmi, Tanja de Gruijl, Anna Kanerva, Akseli Hemminki
Vaccination with dendritic cells (DCs), the most potent professional antigen-presenting cells in the body, is a promising approach in cancer immunotherapy. However, tumors induce immunosuppression in their microenvironment that suppresses and impairs the function of DCs. Therefore, human clinical trials with DC therapy have often been disappointing. To improve the therapeutic efficacy and to overcome the major obstacles of DC therapy, we generated a novel adenovirus, Ad3-hTERT-CMV-hCD40L, which is fully serotype 3 and expresses hCD40L for induction of antitumor immune response...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28344660/predictive-biomarkers-and-effectiveness-of-muc1-targeted-dendritic-cell-based-vaccine-in-patients-with-refractory-non-small-cell-lung-cancer
#2
Koji Teramoto, Yoshitomo Ozaki, Jun Hanaoka, Satoru Sawai, Noriaki Tezuka, Shozo Fujino, Yataro Daigo, Keiichi Kontani
BACKGROUND: The dendritic cell (DC)-based vaccine targeting the highly immunogenic tumor antigen, MUC1, has been promising for a cancer immunotherapy; however, predictive biomarkers for beneficial clinical responses of the vaccine remain to be determined. METHODS: DCs loaded with MUC1-derived peptide were subcutaneously administered to patients with MUC1-positive non-small cell lung cancer (NSCLC) that was refractory to standard anticancer therapies, every 2 weeks...
March 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28344338/monitoring-of-dynamic-changes-in-keyhole-limpet-hemocyanin-klh-specific-b-cells-in-klh-vaccinated-cancer-patients
#3
Florian Wimmers, Nienke de Haas, Anja Scholzen, Gerty Schreibelt, Elles Simonetti, Marc J Eleveld, Huberdina M L M Brouwers, Marjo Beldhuis-Valkis, Irma Joosten, Marien I de Jonge, Winald R Gerritsen, I Jolanda M de Vries, Dimitri A Diavatopoulos, Joannes F M Jacobs
Keyhole limpet hemocyanin (KLH) is used as an immunogenic neo-antigen for various clinical applications and during vaccine development. For advanced monitoring of KLH-based interventions, we developed a flow cytometry-based assay for the ex vivo detection, phenotyping and isolation of KLH-specific B cells. As proof-of-principle, we analyzed 10 melanoma patients exposed to KLH during anti-cancer dendritic cell vaccination. Our assay demonstrated sensitive and specific detection of KLH-specific B cells in peripheral blood and KLH-specific B cell frequencies strongly correlated with anti-KLH serum antibody titers...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28343701/toll-like-receptor-8-agonist-nanoparticles-mimic-immunomodulating-effects-of-the-live-bcg-vaccine-and-enhance-neonatal-innate-and-adaptive-immune-responses
#4
David J Dowling, Evan A Scott, Annette Scheid, Ilana Bergelson, Sweta Joshi, Carlo Pietrasanta, Spencer Brightman, Guzman Sanchez-Schmitz, Simon D Van Haren, Jana Ninković, Dina Kats, Cristiana Guiducci, Alexandre de Titta, Daniel K Bonner, Sachiko Hirosue, Melody A Swartz, Jeffrey A Hubbell, Ofer Levy
BACKGROUND: Newborns display distinct immune responses, leaving them vulnerable to infections and impairing immunization. Targeting newborn dendritic cells (DCs), which integrate vaccine signals into adaptive immune responses, might enable development of age-specific vaccine formulations to overcome suboptimal immunization. OBJECTIVE: Small-molecule imidazoquinoline Toll-like receptor (TLR) 8 agonists robustly activate newborn DCs but can result in reactogenicity when delivered in soluble form...
March 14, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28342669/extended-protection-capabilities-of-an-immature-dendritic-cell-targeting-malaria-sporozoite-vaccine
#5
Kun Luo, Fidel Zavala, James Gordy, Hong Zhang, Richard B Markham
Mouse studies evaluating candidate malaria vaccines have typically examined protective efficacy over the relatively short time frames of several weeks after the final of multiple immunizations. The current study examines the protective ability in a mouse model system of a novel protein vaccine construct in which the adjuvant polyinosinic polycytidilic acid (poly(I:C)) is used in combination with a vaccine in which the immature dendritic cell targeting chemokine, macrophage inflammatory protein 3 alpha (MIP3α), is fused to the circumsporozoite protein (CSP) of Plasmodium falciparum (P...
March 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28339502/histological-and-anatomical-structure-of-the-nasal-cavity-of-bama-minipigs
#6
Jingjing Yang, Lei Dai, Qinghua Yu, Qian Yang
OBJECTIVE: The nasal mucosa is equipped with abundant lymphatic tissues, serving as the first line of defense against invasion by microorganisms. In this study, we characterized the features of the nasal mucosa of Bama minipigs (Sus scrofa domestica) via histological analysis. METHODS: Five cross sections (I, II, III, IV, and V) were obtained from the distal end of the nasal cavity toward the pharynx (along the cavity axis) and examined. Specifically, CD3+ T cells, immunoglobulin A (IgA)+ cells, and M cells were detected by immunohistochemistry, while dendritic cells (DCs) were detected by immunofluorescence...
2017: PloS One
https://www.readbyqxmd.com/read/28336871/magnetic-nanovectors-for-the-development-of-dna-blood-stage-malaria-vaccines
#7
Fatin M Nawwab Al-Deen, Sue D Xiang, Charles Ma, Kirsty Wilson, Ross L Coppel, Cordelia Selomulya, Magdalena Plebanski
DNA vaccines offer cost, flexibility, and stability advantages, but administered alone have limited immunogenicity. Previously, we identified optimal configurations of magnetic vectors comprising superparamagnetic iron oxide nanoparticles (SPIONs), polyethylenimine (PEI), and hyaluronic acid (HA) to deliver malaria DNA encoding Plasmodium yoelii (Py) merozoite surface protein MSP119 (SPIONs/PEI/DNA + HA gene complex) to dendritic cells and transfect them with high efficiency in vitro. Herein, we evaluate their immunogenicity in vivo by administering these potential vaccine complexes into BALB/c mice...
February 10, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28331101/immunotherapy-of-nivolumab-with-dendritic-cell-vaccination-is-effective-against-intractable-recurrent-primary-central-nervous-system-lymphoma-a-case-report
#8
Motomasa Furuse, Naosuke Nonoguchi, Naoki Omura, Mitsuaki Shirahata, Koichi Iwasaki, Toshio Inui, Toshihiko Kuroiwa, Hiroko Kuwabara, Shin-Ichi Miyatake
We report effective treatment with nivolumab of a patient with recurrent primary central nervous system lymphoma (PCNSL) after multiple therapies. A 41-year-old woman with a right parietal PCNSL underwent treatment with high-dose methotrexate and radiotherapy. After recurrence in the left frontal lobe, the patient received several chemotherapies, including methotrexate and rituximab, and underwent surgery. The tumor was refractory to these treatments, and the patient then underwent intensity-modulated radiotherapy (IMRT)...
March 23, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28330898/antigen-presenting-human-%C3%AE-%C3%AE-t-cells-promote-intestinal-cd4-t-cell-expression-of-il-22-and-mucosal-release-of-calprotectin
#9
Christopher J Tyler, Neil E McCarthy, James O Lindsay, Andrew J Stagg, Bernhard Moser, Matthias Eberl
The cytokine IL-22 plays a critical role in mucosal barrier defense, but the mechanisms that promote IL-22 expression in the human intestine remain poorly understood. As human microbe-responsive Vγ9/Vδ2 T cells are abundant in the gut and recognize microbiota-associated metabolites, we assessed their potential to induce IL-22 expression by intestinal CD4(+) T cells. Vγ9/Vδ2 T cells with characteristics of APCs were generated from human blood and intestinal organ cultures, then cocultured with naive and memory CD4(+) T cells obtained from human blood or the colon...
March 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28330867/influenza-vaccines-differentially-regulate-the-interferon-response-in-human-dendritic-cell-subsets
#10
Shruti Athale, Romain Banchereau, LuAnn Thompson-Snipes, Yuanyuan Wang, Karolina Palucka, Virginia Pascual, Jacques Banchereau
Human dendritic cells (DCs) play a fundamental role in the initiation of long-term adaptive immunity during vaccination against influenza. Understanding the early response of human DCs to vaccine exposure is thus essential to determine the nature and magnitude of maturation signals that have been shown to strongly correlate with vaccine effectiveness. In 2009, the H1N1 influenza epidemics fostered the commercialization of the nonadjuvanted monovalent H1N1 California vaccine (MIV-09) to complement the existing nonadjuvanted trivalent Fluzone 2009-2010 vaccine (TIV-09)...
March 22, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28327531/porcine-dendritic-cells-as-an-in-vitro-model-to-assess-the-immunological-behaviour-of-streptococcus-suis-subunit-vaccine-formulations-and-the-polarizing-effect-of-adjuvants
#11
Léa Martelet, Sonia Lacouture, Guillaume Goyette-Desjardins, Guy Beauchamp, Charles Surprenant, Marcelo Gottschalk, Mariela Segura
An in vitro porcine bone marrow-derived dendritic cell (DC) culture was developed as a model for evaluating immune polarization induced by adjuvants when administered with immunogens that may become vaccine candidates if appropriately formulated. The swine pathogen Streptococcus suis was chosen as a prototype to evaluate proposed S. suis vaccine candidates in combination with the adjuvants Poly I:C, Quil A ®, Alhydrogel ®, TiterMax Gold ® and Stimune ®. The toll-like receptor ligand Poly I:C and the saponin Quil A ® polarized swine DC cytokines towards a type 1 phenotype, with preferential production of IL-12 and TNF-α...
March 22, 2017: Pathogens
https://www.readbyqxmd.com/read/28326304/hiv-diagnosis-and-treatment-through-advanced-technologies
#12
REVIEW
Hafiza Fizzah Zulfiqar, Aneeqa Javed, Sumbal, Bakht Afroze, Qurban Ali, Khadija Akbar, Tariq Nadeem, Muhammad Adeel Rana, Zaheer Ahmad Nazar, Idrees Ahmad Nasir, Tayyab Husnain
Human immunodeficiency virus (HIV) is the chief contributor to global burden of disease. In 2010, HIV was the fifth leading cause of disability-adjusted life years in people of all ages and leading cause for people aged 30-44 years. It is classified as a member of the family Retroviridae and genus Lentivirus based on the biological, morphological, and genetic properties. It infects different cells of the immune system, such as CD4+ T cells (T-helper cells), dendritic cells, and macrophages. HIV has two subtypes: HIV-1 and HIV-2...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28323115/gene-transfection-efficiency-into-dendritic-cells-is-influenced-by-the-size-of-cationic-liposomes-dna-complexes
#13
Yoshikazu Inoh, Mie Nagai, Kayo Matsushita, Mamoru Nakanishi, Tadahide Furuno
Cationic liposomes have attracted recent attention as DNA vaccine carriers that can target dendritic cells (DCs). In general, cationic liposome/DNA complexes (lipoplexes) are taken up by various cells via clathrin-mediated endocytosis, caveolae-mediated endocytosis, macropinocytosis, or phagocytosis, with the mode of endocytosis determining further intracellular trafficking pathways. Moreover, the physicochemical properties of cationic lipoplexes, including lipid composition, shape, size, and charge, influence transfection efficiency, affecting uptake and subsequent intracellular pathways...
March 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28321220/adjusted-particle-size-eliminates-the-need-of-linkage-of-antigen-and-adjuvants-for-appropriated-t-cell-responses-in-virus-like-particle-based-vaccines
#14
Ariane C Gomes, Anna Flace, Philippe Saudan, Franziska Zabel, Gustavo Cabral-Miranda, Aadil El Turabi, Vania Manolova, Martin F Bachmann
Since the discovery of the first virus-like particle (VLP) derived from hepatitis B virus in 1980 (1), the field has expanded substantially. Besides successful use of VLPs as safe autologous virus-targeting vaccines, the powerful immunogenicity of VLPs has been also harnessed to generate immune response against heterologous and even self-antigens (2-4). Linking adjuvants to VLPs displaying heterologous antigen ensures simultaneous delivery of all vaccine components to the same antigen-presenting cells. As a consequence, antigen-presenting cells, such as dendritic cells, will process and present the antigen displayed on VLPs while receiving costimulatory signals by the VLP-incorporated adjuvant...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28318770/expression-of-cathepsin-s-in-bcg-converts-it-into-a-pro-apoptotic-and-highly-immunogenic-strain
#15
Alice Lau, Vijender Singh, Hafid Soualhine, Zakaria Hmama
BACKGROUND: BCG vaccine, introduced almost 100years ago, is the only option to prevent TB disease. It effectively protects newborns from meningeal TB but fails to prevent adult pulmonary TB. TB kills 1.3million people annually in areas where BCG vaccination is widely practiced. Thus, more effective TB vaccines are urgently needed. Others and we have shown that BCG mimics features of virulent M. tuberculosis, in particular attenuation of essential macrophage functions such as phagosome maturation and antigen presentation...
March 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28317871/insights-into-molecular-therapy-of-glioma-current-challenges-and-next-generation-blueprint
#16
REVIEW
Y Rajesh, Ipsita Pal, Payel Banik, Sandipan Chakraborty, Sachin A Borkar, Goutam Dey, Ahona Mukherjee, Mahitosh Mandal
Glioma accounts for the majority of human brain tumors. With prevailing treatment regimens, the patients have poor survival rates. In spite of current development in mainstream glioma therapy, a cure for glioma appears to be out of reach. The infiltrative nature of glioma and acquired resistance substancially restrict the therapeutic options. Better elucidation of the complicated pathobiology of glioma and proteogenomic characterization might eventually open novel avenues for the design of more sophisticated and effective combination regimens...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28316602/toll-like-receptor-ligand-based-vaccine-adjuvants-require-intact-myd88-signaling-in-antigen-presenting-cells-for-germinal-center-formation-and-antibody-production
#17
Munir M Mosaheb, Michael L Reiser, Lee M Wetzler
Vaccines are critical in the fight against infectious diseases, and immune-stimulating adjuvants are essential for enhancing vaccine efficacy. However, the precise mechanisms of action of most adjuvants are unknown. There is an urgent need for customized and adjuvant formulated vaccines against immune evading pathogens that remain a risk today. Understanding the specific role of various cell types in adjuvant-induced protective immune responses is vital for an effective vaccine design. We have investigated the role of cell-specific MyD88 signaling in vaccine adjuvant activity in vivo, using Neisserial porin B (PorB), a TLR2 ligand-based adjuvant, compared with an endosomal TLR9 ligand (CpG) and toll-like receptor (TLR)-independent (alum, MF59) adjuvants...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28303767/immunomonitoring-reveals-interruption-of-anergy-after-vaccination-in-a-case-of-type-2-papillary-renal-cell-carcinoma
#18
Maria A Clavijo-Salomon, Patricia C Bergami-Santos, José Alexandre M Barbuto
With the enormous and growing interest in the clinical application of immunotherapy, we are currently facing the need to accurately monitor the immune function of cancer patients. Here, we describe changes in the immune status of a patient with metastatic type-2-papillary renal cell carcinoma, before and after surgery and subsequent immunotherapy with a dendritic cell-tumor cell hybrid vaccine. Through the accurate assessment of monocyte-derived dendritic cells (Mo-DCs) function, we show that Mo-DCs were freed from tumor-induced maturation blockage by tumor resection surgery, while Mo-DCs-tumor induced suppression and anergy were only interrupted by the vaccination treatment...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28303764/recent-progress-in-gm-csf-based-cancer-immunotherapy
#19
Wan-Lun Yan, Kuan-Yin Shen, Chun-Yuan Tien, Yu-An Chen, Shih-Jen Liu
Cancer immunotherapy is a growing field. GM-CSF, a potent cytokine promoting the differentiation of myeloid cells, can also be used as an immunostimulatory adjuvant to elicit antitumor immunity. Additionally, GM-CSF is essential for the differentiation of dendritic cells, which are responsible for processing and presenting tumor antigens for the priming of antitumor cytotoxic T lymphocytes. Some strategies have been developed for GM-CSF-based cancer immunotherapy in clinical practice: GM-CSF monotherapy, GM-CSF-secreting cancer cell vaccines, GM-CSF-fused tumor-associated antigen protein-based vaccines, GM-CSF-based DNA vaccines and GM-CSF combination therapy...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28300196/recombinant-mycobacterium-smegmatis-with-a-pmyong2-vector-expressing-human-immunodeficiency-virus-type-i-gag-can-induce-enhanced-virus-specific-immune-responses
#20
Byoung-Jun Kim, Jeong-Ryeol Gong, Ga-Na Kim, Bo-Ram Kim, So-Young Lee, Yoon-Hoh Kook, Bum-Joon Kim
Recently, we have developed a novel Mycobacterium-Escherichia coli shuttle vector system using pMyong2, which can provide an enhanced expression of heterologous genes in recombinant Mycobacterium smegmatis (rSmeg). To investigate the usefulness of rSmeg using pMyong2 in vaccine application, we vaccinated M. smegmatis with pMyong2 system expressing Human Immunodeficiency Virus Type I (HIV-1) Gag p24 antigen (rSmeg-pMyong2-p24) into mice and examined its cellular and humoral immune responses against HIV gag protein...
March 16, 2017: Scientific Reports
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