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Pbmc co culture

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https://www.readbyqxmd.com/read/28682474/autologous-serum-supplement-favours-in-vitro-regenerative-paracrine-factors-synthesis
#1
Nazmul Haque, Noor Hayaty Abu Kasim, Noor Lide Abu Kassim, Mohammad Tariqur Rahman
OBJECTIVES: Foetal bovine serum (FBS) is often the serum supplement of choice for in vitro human cell culture. This study compares the effect of FBS and autologous human serum (AuHS) supplement in human peripheral blood mononuclear cell (PBMC) culture to prepare secretome. MATERIALS AND METHODS: The PBMC (n = 7) were cultured either in RPMI-1640 containing L-glutamine and 50 units/ml Penicillin-Streptomycin (BM) or in BM with either AuHS or FBS. Viability, proliferation and differentiation of PBMC were evaluated...
July 6, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28680763/the-influence-of-stromal-cells-and-tumor-microenvironment-derived-cytokines-and-chemokines-on-cd3-cd8-tumor-infiltrating-lymphocyte-subpopulations
#2
Stefan Koeck, Johan Kern, Marit Zwierzina, Gabriele Gamerith, Edith Lorenz, Sieghart Sopper, Heinz Zwierzina, Arno Amann
The tumor microenvironment has been identified as a major mediator of immunological processes in solid tumors. In particular, tumor-associated fibroblasts are known to interact with tumor infiltrating immune cells. We describe the influence of fibroblasts and tumor-microenvironment-derived cytokines on the infiltration capacity of CD3(+)CD8(+) cytotoxic T lymphocyte subpopulations using a multicellular 3D co-culture system. 3D tumor microtissues were cultivated using a hanging drop system. Human A549 and Calu-6 cancer cell lines were incubated alone or together with the human fibroblast cell line SV80 for 10 d to form microtissues...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28656222/activation-of-the-toll-like-receptor-8-pathway-increases-the-immunogenicity-of-mesenchymal-stem-cells-from-umbilical-cord
#3
Yu Yang, Yanwen Wang, Li Li, Fei Chen, Peng Zhang
Mesenchymal stem cells (MSCs) are now widely used in clinical cell‑based therapy due to their characteristics of low immunogenicity, multiple differentiation potency and the capability to modulate immune responses. However, accumulated research has indicated the absence of engrafted MSCs because of the increased immunogenicity of MSCs. Toll‑like receptors (TLRs) are essential for the innate immune response and regulating the biological function of MSCs. The present study used human umbilical cord‑derived MSCs (UCMSCs) and activated the TLR8 pathway of UCMSCs to study the role of TLR8 in mediating the immune status of UCMSCs...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28637474/arsenic-trioxide-inhibits-ebv-reactivation-and-promotes-cell-death-in-ebv-positive-lymphoma-cells
#4
Qinyan Yin, Mark Sides, Christopher H Parsons, Erik K Flemington, Joseph A Lasky
BACKGROUND: Epstein-Barr Virus (EBV) is associated with hematopoietic malignancies, such as Burkitt's lymphoma, post-transplantation lymphoproliferative disorder, and diffuse large B-cell lymphoma. The current approach for EBV-associated lymphoma involves chemotherapy to eradicate cancer cells, however, normal cells may be injured and organ dysfunction may occur with currently employed regimens. This research is focused on employing arsenic trioxide (ATO) as EBV-specific cancer therapy takes advantage of the fact the EBV resides within the malignant cells...
June 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28594941/low-level-laser-lll-attenuate-lps-induced-inflammatory-responses-in-mesenchymal-stem-cells-via-the-suppression-of-nf-%C3%AE%C2%BAb-signaling-pathway-in-vitro
#5
Kan Yin, Rongjia Zhu, Shihua Wang, Robert Chunhua Zhao
BACKGROUND: Considering promising results in animal models and patients, therapeutic use of MSCs for immune disease is likely to undergo continued evaluation. Low-lever laser (LLL) has been widely applied to retard the inflammatory reaction. LLL treatment can potentially be applied in anti-inflammatory therapy followed by stem cell therapy. AIM OF THE STUDY: The purpose of this study was to investigate the effect of LLL (660 nm) on the inflammatory reaction induced by LPS in human adipose derived mesenchymal stem cells (hADSCs) and pertinent mechanism...
2017: PloS One
https://www.readbyqxmd.com/read/28584241/e-coli-promotes-human-v%C3%AE-9v%C3%AE-2%C3%A2-t-cell-transition-from-cytokine-producing-bactericidal-effectors-to-professional-phagocytic-killers-in-a-tcr-dependent-manner
#6
M Barisa, A M Kramer, Y Majani, D Moulding, L Saraiva, M Bajaj-Elliott, J Anderson, K Gustafsson
γδT cells provide immune-surveillance and host defense against infection and cancer. Surprisingly, functional details of γδT cell antimicrobial immunity to infection remain largely unexplored. Limited data suggests that γδT cells can phagocytose particles and act as professional antigen-presenting cells (pAPC). These potential functions, however, remain controversial. To better understand γδT cell-bacterial interactions, an ex vivo co-culture model of human peripheral blood mononuclear cell (PBMC) responses to Escherichia coli was employed...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28544640/an-in%C3%A2-vitro-model-demonstrates-the-potential-of-neoplastic-human-germ-cells-to-influence-the-tumour-microenvironment
#7
B Klein, H-C Schuppe, M Bergmann, M P Hedger, B E Loveland, K L Loveland
Testicular germ cell tumours (TGCT) typically contain high numbers of infiltrating immune cells, yet the functional nature and consequences of interactions between GCNIS (germ cell neoplasia in situ) or seminoma cells and immune cells remain unknown. A co-culture model using the seminoma-derived TCam-2 cell line and peripheral blood mononuclear cells (PBMC, n = 7 healthy donors) was established to investigate how tumour and immune cells each contribute to the cytokine microenvironment associated with TGCT...
May 23, 2017: Andrology
https://www.readbyqxmd.com/read/28504020/propoxur-induced-oxidative-dna-damage-in-human-peripheral-blood-mononuclear-cells-protective-effects-of-curcumin-and-%C3%AE-tocopherol
#8
Tanzeel Ahmed, Vasu Goel, B D Banerjee
The present study enumerates the attenuating effects of curcumin and α-tocopherol against propoxur induced oxidative DNA damage in human peripheral blood mononuclear cells (PBMC). Cultured cells were isolated from peripheral blood of healthy volunteers, and were exposed to varying concentrations of propoxur (0-21 μg/ml) for 6, 12, and 24 h, and in combination with curcumin (9.2 μg/ml) or α-tocopherol (4.3 μg/ml) or both. Cytotoxic effect of propoxur was examined by MTT assay. The role of oxidative stress beneath the cytotoxicity of propoxur was evaluated by the measurement of reduced glutathione (GSH), malondialdehyde (MDA) and 8-hydroxy-2'-deoxyguanosine (8-OH-dG) levels in cell lysate...
May 15, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28500235/beta-catenin-inhibitor-bc2059-is-efficacious-as-monotherapy-or-in-combination-with-proteasome-inhibitor-bortezomib-in-multiple-myeloma
#9
Ioanna Savvidou, Tiffany Khong, Andrew Cuddihy, Catriona McLean, Stephen Horrigan, Andrew Spencer
Currently available treatment options are unlikely to be curative for the majority of multiple myeloma (MM) patients, emphasizing a continuing role for the introduction of investigational agents that can overcome drug resistance. The canonical Wnt/beta-catenin signalling pathway, essential for self-renewal, growth and survival, has been found to be dysregulated in MM, particularly in advanced stages of disease. This provides the rationale for evaluating the novel beta-catenin inhibitor BC2059 as monotherapy and in combination with proteasome inhibitors in vitro and in vivo...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28474861/group-2-innate-lymphoid-cells-are-elevated-and-activated-in-chronic-rhinosinusitis-with-nasal-polyps
#10
Julie A Poposki, Aiko I Klingler, Bruce K Tan, Pejman Soroosh, Homayon Banie, Gavin Lewis, Kathryn E Hulse, Whitney W Stevens, Anju T Peters, Leslie C Grammer, Robert P Schleimer, Kevin C Welch, Stephanie S Smith, David B Conley, Joseph R Raviv, James G Karras, Omid Akbari, Robert C Kern, Atsushi Kato
BACKGROUND: Chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) is characterized by type 2 inflammation with high levels of Th2 cytokines. Although T helper cytokines are released from T cells, innate lymphoid cells (ILC) are also known to produce high levels of the same cytokines. However, the presence of various types of ILC in CRS is poorly understood. OBJECTIVE: The objective of this study was to fully characterize the presence of all ILC subsets in CRS and to identify phenotypical differences of group 2 ILC (ILC2) in CRSwNP compared to ILC2 from non-type 2 inflamed areas...
April 19, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28470343/pbmc-activation-via-the-erk-and-stat-signaling-pathways-enhances-the-anti-tumor-activity-of-staphylococcal-enterotoxin-a
#11
Xueting Liu, Liping Zeng, Zhongqiu Zhao, Jianxing He, Yang Xie, Lanyan Xiao, Shan Wang, Junyan Zhang, Zehong Zou, Ying He, Ailin Tao, Jianguo Zhang
Staphylococcal enterotoxin A (SEA) is well known as a superantigen and is highly potent in activating T lymphocytes. And it has been used clinically as an immunomodifier in the treatment of a number of tumors for years. However, the mechanism of its action remains largely unclear. In this study, SEA was found to significantly inhibit the proliferation and induce the death of human lung carcinoma A549 cells when co-cultured with human peripheral blood mononuclear cells (PBMCs). SEA could also induce the proliferation of human PBMCs and stimulate human PBMCs to release a wide range of cytokines that have broad anti-tumor activities such as IFN-γ, TNF-α, IL-2...
May 3, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28411882/in-vitro-generation-of-interleukin-10-secreting-b-regulatory-cells-from-donor-adipose-tissue-derived-mesenchymal-stem-cells-and-recipient-peripheral-blood-mononuclear-cells-for-potential-cell-therapy
#12
Kunal S Gupte, Aruna V Vanikar, Hargovind L Trivedi, Chetan N Patel, Jignesh V Patel
BACKGROUND: Interleukin-10 secreting B-cells are a major subset of B-regulatory cells (B-regs), commonly recognized as CD19(+)/38(hi)/24(hi)/IL10(+). They carry out immunomodulation by release of specific cytokines and/or cell-to-cell contact. We have generated B-regs in-vitro from donor adipose tissue derived mesenchymal stem cells (AD-MSC) and renal allograft recipient (RAR) peripheral blood mononuclear cells (PBMC) for potential cell therapy. MATERIAL AND METHODS: Mononuclear cells separated by density gradient centrifugation from 50 ml anti-coagulated blood of 15-RAR and respective donors were analysed for baseline B-regs using appropriate antibodies...
February 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28376277/dendritic-cells-from-rheumatoid-arthritis-patient-peripheral-blood-induce-th17-cell-differentiation-via-mir-363-integrin-%C3%AE-v-tgf-%C3%AE-axis
#13
Feng Pan, Haiyan Xiang, Juzhen Yan, Liquan Hong, Lahong Zhang, Yuhua Liu, Xiao Feng, Chengsong Cai
BACKGROUND AND AIM: Dendritic cells (DCs) are critical regulators of immune responses. This study was to observe the effect of DCs from peripheral blood on the differentiation of Th17 in rheumatoid arthritis (RA) patients. METHODS AND RESULTS: Peripheral blood samples were collected from 30 RA patients and 20 healthy controls, respectively. Flow cytometry results showed that in contrast with Treg cells, the proportion of Th17 cells in T cells and the Th17/Treg ratio were both increased in RA patients...
April 4, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28342803/antigen-specific-ctls-to-produce-autologous-cells-product-for-adoptive-cellular-therapy
#14
Sai Liu, Yi Shao, Jie Xu, Na Jiang, Yanchao Dai, Yu Wang, Huanqing Sun, Jianping Sun, Yonghong Zhang
As antiretroviral therapy provides long term viral suppression but no cure, alternative therapies such as adoptive cellular therapy have thus been investigated in the anti-AIDS field. OBJECTIVE: This study sought to establish a HLA-A02 specific CTL cell culture method with comparison of the effects of different cytokines used in CTL cultivation to decide the best cultivation environment. In order to produce CTLs with targeted HLA-A02 restricted antigen specificity for adoptive cellular therapy, we evaluated autologous PBMC cultivation in different cytokine environment to select a better expansion condition to produce qualified CTL production...
March 22, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28331616/ex-vivo-akt-inhibition-promotes-the-generation-of-potent-cd19car-t-cells-for-adoptive-immunotherapy
#15
Ryan Urak, Miriam Walter, Laura Lim, ChingLam W Wong, Lihua E Budde, Sandra Thomas, Stephen J Forman, Xiuli Wang
BACKGROUND: Insufficient persistence and effector function of chimeric antigen receptor (CAR)-redirected T cells have been challenging issues for adoptive T cell therapy. Generating potent CAR T cells is of increasing importance in the field. Studies have demonstrated the importance of the Akt pathway in the regulation of T cell differentiation and memory formation. We now investigate whether inhibition of Akt signaling during ex vivo expansion of CAR T cells can promote the generation of CAR T cells with enhanced antitumor activity following adoptive therapy in a murine leukemia xenograft model...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28261215/tnf-blockade-maintains-an-il-10-phenotype-in-human-effector-cd4-and-cd8-t-cells
#16
Ceri A Roberts, Lucy E Durham, Veerle Fleskens, Hayley G Evans, Leonie S Taams
CD4(+) and CD8(+) effector T cell subpopulations can display regulatory potential characterized by expression of the prototypically anti-inflammatory cytokine IL-10. However, the underlying cellular mechanisms that regulate expression of IL-10 in different T cell subpopulations are not yet fully elucidated. We recently showed that TNF inhibitors (TNFi) promote IL-10 expression in human CD4(+) T cells, including IL-17(+) CD4(+) T cells. Here, we further characterized the regulation of IL-10 expression via blockade of TNF signaling or other cytokine/co-stimulatory pathways, in human T cell subpopulations...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28260094/immunosuppressive-macrophages-induced-by-ido1-promote-the-growth-of-endometrial-stromal-cells-in-endometriosis
#17
Jie Mei, Kai-Kai Chang, Hai-Xiang Sun
It was previously demonstrated that anomalous expression of indoleamine 2,3-dioxygenase-1 (IDO1) in endometrial stromal cells (ESCs) stimulated an inflammatory response that subsequently initiated the activation of immunosuppressive macrophages in endometriosis. The aim of the present study was to clarify the effect of IDO1‑induced macrophages on the growth of ESCs in endometriosis. Normal ESCs, ectopic ESCs and normal ESCs treated with plasmid pEGFP‑N1‑IDO1 or SD11‑IDO1 short hairpin RNA were co‑cultured with peripheral blood‑derived monocyte (PBMC)‑driven macrophages directly for 48 h...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28238206/synergistic-effect-of-ddt-and-its-metabolites-in-lipopolysaccharide-mediated-tnf-%C3%AE-production-is-inhibited-by-progesterone-in-peripheral-blood-mononuclear-cells
#18
Pablo Dominguez-Lopez, Laura Diaz-Cueto, Arturo Aguilar-Rojas, Fabian Arechavaleta-Velasco
Increased TNF-α levels have been associated with adverse pregnancy outcomes. Lipopolysaccharide (LPS), 1,1,1-trichloro-2,2-bis-(chlorophenyl)ethane (DDT), 1,1-bis-(chlorophenyl)-2,2-dichloroethene (DDE), and 1,1-dichloro-2,2-bis(chlorophenyl)ethane (DDD) induce TNF-α release in peripheral blood mononuclear cells (PBMC). Conversely, progesterone (P4) inhibits TNF-α secretion. Pregnant women in malaria endemic areas may be co-exposure to these compounds. Thus, this study was to investigate the synergistic effect of LPS and these pesticides in PBMC and to assess P4 influence on this synergy...
February 26, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28235702/design-synthesis-biological-evaluation-and-x-ray-structural-studies-of-potent-human-dihydroorotate-dehydrogenase-inhibitors-based-on-hydroxylated-azole-scaffolds
#19
Stefano Sainas, Agnese C Pippione, Marta Giorgis, Elisa Lupino, Parveen Goyal, Cristina Ramondetti, Barbara Buccinnà, Marco Piccinini, Rodolpho C Braga, Carolina H Andrade, Mikael Andersson, Ann-Christin Moritzer, Rosmarie Friemann, Stefano Mensa, Salam Al-Kadaraghi, Donatella Boschi, Marco L Lolli
A new generation of potent hDHODH inhibitors designed by a scaffold-hopping replacement of the quinolinecarboxylate moiety of brequinar, one of the most potent known hDHODH inhibitors, is presented here. Their general structure is characterized by a biphenyl moiety joined through an amide bridge with an acidic hydroxyazole scaffold (hydroxylated thiadiazole, pyrazole and triazole). Molecular modelling suggested that these structures should adopt a brequinar-like binding mode involving interactions with subsites 1, 2 and 4 of the hDHODH binding site...
March 31, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28181858/evaluation-of-immunomodulatory-properties-of-feline-mesenchymal-stem-cells
#20
Maciej Parys, John M Kruger, Vilma Yuzbasiyan-Gurkan
Mesenchymal stem cells (MSC) offer a novel approach to treatment of inflammatory disorders in humans and companion animals. Cats spontaneously develop a wide variety of inflammatory disorders and may potentially benefit from MSC-based therapies. Multiple genes are involved in immunomodulation by MSC and interspecies differences between expressions of these genes exist. The goals of the study were to characterize the expression of genes known to be involved in MSC-based immunomodulation and determine the effect of MSC on proliferation of T cells in coculture experiments with peripheral blood mononuclear cells (PBMC)...
May 15, 2017: Stem Cells and Development
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