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https://www.readbyqxmd.com/read/29434934/effects-of-disodium-cantharidinate-on-dendritic-cells-of-patients-with-bladder-carcinoma
#1
Guang-Hui Zang, Rui Li, Rong-Sheng Zhou, Lin Hao, Hou-Guang He, Wen-Da Zhang, Yang Dong, Cong-Hui Han
The present study explored the effects of disodium cantharidinate (DC) on the peripheral blood-derived dendritic cells of patients with bladder carcinoma. The peripheral blood mononuclear cells from the 15 cases of urinary bladder carcinoma of middle and advanced stage were separated, and dendritic cells were prepared. The morphological changes of dendritic cells were observed. Flow cytometry was used to detect the expression levels of CD1a and CD83 on dendritic cell surface. MTT assay was utilized to measure the proliferation ability of allogeneic lymphocyte stimulated by DC...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29416536/trichinella-spiralis-excretory-secretory-products-induce-tolerogenic-properties-in-human-dendritic-cells-via-toll-like-receptors-2-and-4
#2
Nataša Ilic, Alisa Gruden-Movsesijan, Jelena Cvetkovic, Sergej Tomic, Dragana Bozidar Vucevic, Carmen Aranzamendi, Miodrag Colic, Elena Pinelli, Ljiljana Sofronic-Milosavljevic
Trichinella spiralis, as well as its muscle larvae excretory-secretory products (ES L1), given either alone or via dendritic cells (DCs), induce a tolerogenic immune microenvironment in inbred rodents and successfully ameliorate experimental autoimmune encephalomyelitis. ES L1 directs the immunological balance away from T helper (Th)1, toward Th2 and regulatory responses by modulating DCs phenotype. The ultimate goal of our work is to find out if it is possible to translate knowledge obtained in animal model to humans and to generate human tolerogenic DCs suitable for therapy of autoimmune diseases through stimulation with ES L1...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29414400/primary-cutaneous-histiocytic-sarcoma-a-report-of-five-cases-with-primary-cutaneous-involvement-and-review-of-the-literature
#3
Cynthia M Magro, Najiyah Kazi, Aimee E Sisinger
INTRODUCTION: Histiocytic sarcoma is an extremely rare hematologic malignancy of histiocytic origin. Five cases of primary cutaneous histiocytic sarcoma are presented. MATERIALS AND METHODS: Cases of primary cutaneous histiocytic sarcoma were identified using a natural language search from the dermatopathology data base of Cornell University. RESULTS: There was a male predominance (4 males and 1 female) ranging in age from 33years to 92years (mean age of 73years); all presented with a solitary nodule which involved the head and neck area in four and thigh in one...
February 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29388277/promoter-polymorphisms-in-tgf-%C3%A2-1-and-il-10-genes-influence-tumor-dendritic-cells-infiltration-development-and-prognosis-of-colorectal-cancer
#4
Maya Gulubova, Elina Aleksandrova, Tatyana Vlaykova
INTRODUCTION: Anti-inflammatory cytokines such as interleukine-10 (IL-10) and the transforming growth factor beta-1 (TGF-®1) have a complex role in the development of colorectal cancer (CRC). Dendritic cells (DCs) are the cellular component of the inflammatory microenvironment in the tumor and infiltration of tumors by DCs is associated with better prognosis and fewer metastases. AIMS: In the current study we aimed to explore the role of two single nucleotide polymorphisms (SNPs) in the promoter regions of TGFB1 and IL10 genes and their associations with infiltrating DCs in CRC...
January 31, 2018: Journal of Gene Medicine
https://www.readbyqxmd.com/read/29388006/glycan-recognition-by-human-blood-mononuclear-cells-with-an-emphasis-on-dendritic-cells
#5
Eugenia M Rapoport, Sergey V Khaidukov, Andrey M Gaponov, Galina V Pazynina, Svetlana V Tsygankova, Ivan M Ryzhov, Ivan M Belyanchikov, Panagiota Milona, Nicolai V Bovin, Kenneth C McCullough
Dendritic cells (DCs) play crucial roles in innate and adaptive immune response, for which reason targeting antigen to these cells is an important strategy for improvement of vaccine development. To this end, we explored recognition of DCs lectins by glycans. For selection of the glycan "vector", a library of 229 fluorescent glycoprobes was employed to assess interaction with the CD14low/-CD16+CD83+ blood mononuclear cell population containing the DCs known for their importance in antigen presentation to T-lymphocytes...
January 31, 2018: Glycoconjugate Journal
https://www.readbyqxmd.com/read/29382351/the-crystal-structure-of-titanium-dioxide-nanoparticles-influences-immune-activity-in-vitro-and-in-vivo
#6
Rob J Vandebriel, Jolanda P Vermeulen, Laurens B van Engelen, Britt de Jong, Lisa M Verhagen, Liset J de la Fonteyne-Blankestijn, Marieke E Hoonakker, Wim H de Jong
BACKGROUND: The use of engineered nanoparticles (NP) is widespread and still increasing. There is a great need to assess their safety. Newly engineered NP enter the market in a large variety; therefore safety evaluation should preferably be in a high-throughput fashion. In vitro screening is suitable for this purpose. TiO 2 NP exist in a large variety (crystal structure, coating and size), but information on their relative toxicities is scarce. TiO 2 NP may be inhaled by workers in e...
January 30, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29369006/linear-energy-transfer-modulates-radiation-induced-nf-kappa-b-activation-and-expression-of-its-downstream-target-genes
#7
Arif Ali Chishti, Christa Baumstark-Khan, Kristina Koch, Waldemar Kolanus, Sebastian Feles, Bikash Konda, Abid Azhar, Luis F Spitta, Bernd Henschenmacher, Sebastian Diegeler, Claudia Schmitz, Christine E Hellweg
Nuclear factor kappaB (NF-κB) is a central transcription factor in the immune system and modulates cell survival in response to radiotherapy. Activation of NF-κB was shown to be an early step in the cellular response to ultraviolet A (UVA) and ionizing radiation exposure in human cells. NF-κB activation by the genotoxic stress-dependent sub-pathway after exposure to different radiation qualities had been evaluated to a very limited extent. In addition, the resulting gene expression profile, which shapes the cellular and tissue response, is unknown...
January 25, 2018: Radiation Research
https://www.readbyqxmd.com/read/29367743/vaccine-vectors-based-on-adenovirus-19a-64-exhibit-broad-cellular-tropism-and-potently-restimulate-hcmv-specific-t-cell-responses-ex-vivo
#8
Richard Kiener, Markus Fleischmann, Christiane Schwegler, Zsolt Ruzsics, Christian Thirion, Silke Schrödel, Benedikt Asbach, Ralf Wagner
Human Cytomegalovirus (HCMV) remains a major health burden and the development of a vaccine is a global priority. We developed new viral vectors delivering the T cell immunogens IE-1 and pp65 based on Adenovirus 19a/64 (Ad19a/64), a member of subgroup D. In this ex vivo study, the novel vectors were compared side by side to Ad5 or modified Vaccinia Ankara (MVA) strains expressing the same transgenes. We found that unlike Ad5, Ad19a/64 vectors readily transduce a broad panel of immune cells, including monocytes, T cells, NK cells and monocyte-derived dendritic cells (moDCs)...
January 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351987/cd83-is-a-new-potential-biomarker-and-therapeutic-target-for-hodgkin-lymphoma
#9
Ziduo Li, Xinsheng Ju, Kenneth Lee, Candice Clarke, Jennifer L Hsu, Edward Abadir, Christian E Bryant, Suzanne Pears, Neroli Sunderland, Scott Heffernan, Annemarie Hennessy, Tsun-Ho Lo, Geoffrey A Pietersz, Fiona Kupresanin, Phillip D Fromm, Pablo A Silveira, Con Tsonis, Wendy A Cooper, Ilona Cunningham, Christina Brown, Georgina J Clark, Derek N J Hart
Chemotherapy and hematopoietic stem cell transplantation are effective treatments for most Hodgkin lymphoma patients, however there remains a need for better tumor-specific target therapy in Hodgkin lymphoma patients with refractory or relapsed disease. We demonstrate that membrane CD83 is a diagnostic and therapeutic target, highly expressed in Hodgkin lymphoma cell lines and Hodgkin and Reed-Sternberg cells in 29/35 (82.9%) Hodgkin lymphoma patient lymph node biopsies. CD83 from Hodgkin lymphoma tumor cells was able to trogocytose to surrounding T cells and interestingly, the trogocytosing CD83+T cells expressed significantly more PD-1 compared to CD83- T cells...
January 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29344995/activation-of-human-cd141-and-cd1c-dendritic-cells-in-vivo-with-combined-tlr-3-and-tlr-7-8-ligation
#10
Frances E Pearson, Karshing Chang, Yoshihito Minoda, Ingrid M Leal Rojas, Oscar L Haigh, Ghazal Daraj, Kirsteen M Tullett, Kristen J Radford
Mice reconstituted with human hematopoietic stem cells are valuable models to study aspects of the human immune system in vivo. We describe a humanized mouse model (hu mice) in which fully functional human CD141+ and CD1c+ myeloid and CD123+ plasmacytoid dendritic cells (DC) develop from human cord blood CD34+ cells in immunodeficient mice. CD141+ DC are the human equivalents of murine CD8+ /CD103+ DC which are essential for the induction of tumor-inhibitory cytotoxic T lymphocyte (CTL) responses, making them attractive targets to exploit for the development of new cancer immunotherapies...
January 18, 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29344274/immunotherapy-of-patient-with-hepatocellular-carcinoma-using-cytotoxic-t-lymphocytes-ex-vivo-activated-with-tumor-antigen-pulsed-dendritic-cells
#11
Ying Wang, Xijing Yang, Yi Yu, Zenghui Xu, Yan Sun, Hui Liu, Jingbo Cheng, Min Liu, Bibo Sha, Linfang Li, Na Ding, Zhong Li, Huajun Jin, Qijun Qian
Purpose The aim of this study was to evaluate the clinical response of immunotherapy with dendritic cell-cytotoxic T lymphocytes (DC-CTLs) in patients with hepatocellular carcinoma (HCC). Method Sixty-eight patients with a confirmed diagnosis of HCC and who received follow-up until December 2015 were enrolled. We measured immune phenotypes of DCs and activated T cells using flow cytometry and clinical indexes using an electrochemiluminescence method. Results DCs exhibited up-regulation of the maturation markers CD83, CD80, CD11c, and CD86 on day8...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29334915/monitoring-the-responsiveness-of-t-and-antigen-presenting-cell-compartments-in-breast-cancer-patients-is-useful-to-predict-clinical-tumor-response-to-neoadjuvant-chemotherapy
#12
David A Bernal-Estévez, Oscar García, Ramiro Sánchez, Carlos A Parra-López
BACKGROUND: Vaccination of mice with tumors treated with Doxorubicin promotes a T cell immunity that relies on dendritic cell (DC) activation and is responsible for tumor control in vaccinated animals. Despite Doxorubicin in combination with Cyclophosphamide (A/C) is widely used to treat breast cancer patients, the stimulating effect of A/C on T and APC compartments and its correlation with patient's clinical response remains to be proved. METHODS: In this prospective study, we designed an in vitro system to monitor various immunological readouts in PBMCs obtained from a total of 17 breast cancer patients before, and after neoadjuvant anti-tumor therapy with A/C...
January 15, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29286121/effects-of-epidermal-growth-factor-receptor-fusion-protein-on-the-cytotoxic-activity-of-socs1-silenced-dendritic-cells-in-vitro
#13
Qichuan Jiang, Xuefeng Wang, Ming Qian, Dong Chen, Yanan Xu
The aim of the present study was to observe the effects of cytokine signaling suppressor 1 (SOCS1)-silenced dendritic cells (DCs) pulsed with epidermal growth factor receptor (EGFR) fusion protein on the activation of T lymphocyte and cytotoxic T-lymphocyte (CTL) activity against Hep-2 cells. DCs were derived from the medullary cells of mice and authenticated by flow cytometry (FCM). Recombinant glutathione-S-transferase (GST)-EGFR fusion protein was produced and purified. After being pulsed with it, DCs were modified by recombinant SOCS1-siRNA adenoviral to silence SOCS1 gene expression...
December 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29281012/induction-of-human-tolerogenic-dendritic-cells-by-3-sialyllactose-via-tlr4-is-explained-by-lps-contamination
#14
Olaf Perdijk, R J Joost van Neerven, Ben Meijer, Huub F J Savelkoul, Sylvia Brugman
The human milk oligosaccharide 3'sialyllactose (3'SL) has previously been shown to activate murine dendritic cells (DC) in a TLR4-mediated manner ex vivo. In this study we aimed to investigate whether 3'SL has similar immunomodulatory properties on human DC. 3'SL was shown to induce NF-κB activation via human TLR4. However, LPS was detected in the commercially obtained 3'SL from different suppliers. After the removal of LPS from 3'SL, we studied its ability to modify DC differentiation in vitro. In contrast to LPS and 3'SL, LPS-free 3'SL did not induce functional and phenotypical changes on immature DC (iDC)...
December 21, 2017: Glycobiology
https://www.readbyqxmd.com/read/29238703/characterization-of-alpha-fetoprotein-effects-on-dendritic-cell-and-its-function-as-effector-immune-response-activator
#15
Jeremiah Suryatenggara, Heri Wibowo, Wahyuni Lukita Atmodjo, George Mathew
Tumor antigen alpha-fetoprotein (AFP) can promote immune tolerance toward tumor cells by inducing regulatory functions of the immune system. The purpose of this study was to characterize the effects of AFP on dendritic cells (DC) in their antitumor immune response stimulation and subsequent immune tolerance toward tumor cells. Monocytes were cultured in medium with GM-CSF and IL-4 and incubated for 6 days to generate immature DC (imDC). AFP was added into the treatment group at the beginning of the monocyte-derived DC culture...
2017: Journal of Hepatocellular Carcinoma
https://www.readbyqxmd.com/read/29235514/substrate-stiffness-influences-phenotype-and-function-of-human-antigen-presenting-dendritic-cells
#16
Svenja F B Mennens, Matteo Bolomini-Vittori, Jorieke Weiden, Ben Joosten, Alessandra Cambi, Koen van den Dries
Dendritic cells (DCs) are specialized immune cells that scan peripheral tissues for foreign material or aberrant cells and, upon recognition of such danger signals, travel to lymph nodes to activate T cells and evoke an immune response. For this, DCs travel large distances through the body, encountering a variety of microenvironments with different mechanical properties such as tissue stiffness. While immune-related pathological conditions such as fibrosis or cancer are associated with tissue stiffening, the role of tissue stiffness in regulating key functions of DCs has not been studied yet...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29221287/anti-cancer-activity-of-dose-fractioned-mpe-bevacizumab-regimen-is-paralleled-by-immune-modulation-in-advanced-squamous-nslc-patients
#17
Pierpaolo Pastina, Valerio Nardone, Stefania Croci, Giuseppe Battaglia, Francesca Vanni, Cristiana Bellan, Marcella Barbarino, Veronica Ricci, Susan Costantini, Francesca Capone, Cirino Botta, Mayra Rachele Zarone, Gabriella Misso, Mariarosaria Boccellino, Michele Caraglia, Antonio Giordano, Piero Paladini, Pierfrancesco Tassone, Pierosandro Tagliaferri, Maria Grazia Cusi, Luigi Pirtoli, Pierpaolo Correale
Background: Results from the BEVA2007 trial, suggest that the metronomic chemotherapy regimen with dose-fractioned cisplatin and oral etoposide (mPE) +/- bevacizumab, a monoclonal antibody to the vascular endothelial growth factor (VEGF), shows anti-angiogenic and immunological effects and is a safe and active treatment for metastatic non-small cell lung cancer (mNSCLC) patients. We carried out a retrospective analysis aimed to evaluate the antitumor effects of this treatment in a subset of patients with squamous histology...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29197260/susceptibility-of-dendritic-cells-from-individuals-with-schistosomiasis-to-infection-by-leishmania-braziliensis
#18
Diego Mota Lopes, Tarcísio Vila Verde S de Almeida, Robson da Paixão de Souza, Luís Eduardo Viana Ribeiro, Brady Page, Jamille de Souza Fernandes, Edgar M Carvalho, Luciana Santos Cardoso
Coinfection with leishmaniasis and schistosomiasis has been associated with increased time to healing of cutaneous lesions of leishmaniasis. The objective of this study was to evaluate the effect of Leishmania braziliensis infection on co-cultures of monocyte-derived dendritic cells (MoDCs) with autologous lymphocytes from patients with schistosomiasis and patients with cutaneous leishmaniasis. MoDCs were differentiated from peripheral blood monocytes, isolated by magnetic beads, infected with L. braziliensis, and co-cultured with autologous lymphocytes...
November 29, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29193869/cd4-and-b-lymphocyte-expression-quantitative-traits-at-rheumatoid-arthritis-risk-loci-in-untreated-early-arthritis-implications-for-causal-gene-identification
#19
Nishanthi Thalayasingam, Nisha Nair, Andrew J Skelton, Jonathan Massey, Amy E Anderson, Alexander D Clark, Julie Diboll, Dennis W Lendrem, Louise N Reynard, Heather J Cordell, Stephen Eyre, John D Isaacs, Anne Barton, Arthur G Pratt
OBJECTIVE: Rheumatoid arthritis (RA) is a genetically complex disease of immune dysregulation. Seeking insight into genetic risk mechanisms, we conducted an expression quantitative trait locus (eQTL) analysis of confirmed genetic risk loci in CD4+ T cells and B cells from carefully phenotyped early arthritis patients naïve to therapeutic immunomodulation. METHODS: 344 patients donated RNA and DNA from purified B and/or CD4+ T-cells. Genotyping and global gene expression measurement were carried out using Illumina BeadChip microarrays...
November 28, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29164392/maturation-and-cytokine-pattern-of-human-dendritic-cells-in-response-to-different-yeasts
#20
Silvia Boschi Bazan, Barbara Walch-Rückheim, Manfred J Schmitt, Frank Breinig
Activated dendritic cells (DC) induce and polarize T-cell responses by expression of distinct maturation markers and cytokines. This study systematically investigated the capacity of different biotechnically relevant yeast species and strains including Saccharomyces cerevisiae, Schizosaccharomyces pombe, Kluyveromyces lactis, Pichia pastoris, Hansenula polymorpha, Yarrowia lipolytica, and Candida glabrata to initiate maturation of human DC. As important prerequisite for T-cell activation, all yeasts were shown to effectively induce, though to a different extent, the expression of the activation marker CD83, the co-stimulatory molecules CD80, CD86, CD54, CD58, and CD40, as well as the antigen-presenting molecules MHCs I and II...
November 21, 2017: Medical Microbiology and Immunology
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