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Kozbial A, Bhandary L, Murthy SK. Effect of Monocyte Seeding Density on Dendritic Cell Generation in an Automated Perfusion-Based Culture System. Biochem Eng J 2019; 150:107291. [PMID: 32831621 PMCID: PMC7441814 DOI: 10.1016/j.bej.2019.107291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dendritic cells (DCs) are increasingly important for research and clinical use but obtaining sufficient numbers of dendritic cells is a growing challenge. We systemically investigated the effect of monocyte (MO) seeding density on the generation of monocyte-derived immature DCs (iDCs) in MicroDEN, a perfusion-based culture system, as well as 6-well plates. Cell surface markers and the ability of the iDCs to induce proliferation of allogeneic T cells were examined. The data shows a strong relationship between iDC phenotype, specifically CD80/83/86 expression, and T cell proliferation. MicroDEN generated iDCs proved better than well plate generated iDCs at inducing T cell proliferation within the 200k-600k MO/cm2 seeding density range studied. We attribute this to perfusion in MicroDEN which supplies fresh differentiation medium continuously to the differentiating MOs while concurrently removing depleted medium and toxic byproducts of cellular respiration. MicroDEN generated fewer iDCs on a normalized basis than the well plates at lower MO seeding densities but generated equivalent numbers of iDCs at 600k MO seeding density. These results demonstrate that MicroDEN is capable of generating greater numbers of iDCs with less manual work than standard well plate culture and the MicroDEN generated iDCs have greater ability to induce T cell proliferation.
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Affiliation(s)
- Andrew Kozbial
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115
| | - Lekhana Bhandary
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115
| | - Shashi K Murthy
- Northeastern University, Department of Chemical Engineering, Boston, MA 02115
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2
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Mead HL, Teixeira MDM, Galgiani JN, Barker BM. Characterizing in vitro spherule morphogenesis of multiple strains of both species of Coccidioides. Med Mycol 2019; 57:478-488. [PMID: 30053114 DOI: 10.1093/mmy/myy049] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 05/27/2018] [Indexed: 11/12/2022] Open
Abstract
The disease San Joaquin Valley Fever (coccidioidomycosis) is caused by the inhalation of Coccidioides arthroconidia. In vivo, arthroconidia transform into pathogenic structures termed spherules. Exposure to the host milieu triggers spherule development; however, the molecular mechanisms responsible for the morphological shift are not well characterized. This study compared the morphogenesis of five strains of both species of Coccidioides in two media types to improve the in vitro model of dimorphism that can be easily reproduced, and is amenable to tissue culture. We also sought to establish a modern record of the morphological switch among commonly used lab strains through a detailed account of growth under various conditions. Spherules from five strains were grown in standard (Converse) and experimental media (RPMI-sph). Strain behavior was quantified by median spherule size and spherule concentration, beginning 3 days after inoculation and followed for 10 days of growth. There were significant differences observed among Coccidioides immitis and C. posadasii strains, as well as differences between the in vitro systems.
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Affiliation(s)
- Heather L Mead
- Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona.,Pathogen Genomics Division, Translational Genomics Research Institute-North, Phoenix, Arizona
| | - Marcus de Melo Teixeira
- Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona.,Pathogen Genomics Division, Translational Genomics Research Institute-North, Phoenix, Arizona
| | - John N Galgiani
- Valley Fever Center for Excellence, University of Arizona, Tucson, Arizona
| | - Bridget M Barker
- Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona.,Pathogen Genomics Division, Translational Genomics Research Institute-North, Phoenix, Arizona.,Valley Fever Center for Excellence, University of Arizona, Tucson, Arizona
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3
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Cangemi M, Montico B, Faè DA, Steffan A, Dolcetti R. Dissecting the Multiplicity of Immune Effects of Immunosuppressive Drugs to Better Predict the Risk of de novo Malignancies in Solid Organ Transplant Patients. Front Oncol 2019; 9:160. [PMID: 30972289 PMCID: PMC6445870 DOI: 10.3389/fonc.2019.00160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/25/2019] [Indexed: 12/15/2022] Open
Abstract
De novo malignancies constitute an emerging cause of morbidity after solid organ transplant (SOT), significantly affecting the long-term survival of transplant recipients. Pharmacologic immunosuppression may functionally impair the immunosurveillance in these patients, thereby increasing the risk of cancer development. Nevertheless, the multiplicity and heterogeneity of the immune effects induced by immunosuppressive drugs limit the current possibilities to reliably predict the risk of de novo malignancy in SOT patients. Therefore, there is the pressing need to better characterize the immune dysfunctions induced by the different immunosuppressive regimens administered to prevent allograft rejection to tailor more precisely the therapeutic schedule and decrease the risk of de novo malignancies. We herein highlight the impact exerted by different classes of immunosuppressants on the most relevant immune cells, with a particular focus on the effects on dendritic cells (DCs), the main regulators of the balance between immunosurveillance and tolerance.
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Affiliation(s)
- Michela Cangemi
- Immunopathology and Cancer Biomarkers, Translational Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Barbara Montico
- Immunopathology and Cancer Biomarkers, Translational Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Damiana A Faè
- Immunopathology and Cancer Biomarkers, Translational Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Agostino Steffan
- Immunopathology and Cancer Biomarkers, Translational Unit, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, Aviano, Italy
| | - Riccardo Dolcetti
- Translational Research Institute, University of Queensland Diamantina Institute, Brisbane, QLD, Australia
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Wang BK, Mao YL, Gong L, Xu X, Jiang SQ, Wang YB, Li WF. Glycyrrhizic acid activates chicken macrophages and enhances their Salmonella-killing capacity in vitro. J Zhejiang Univ Sci B 2019; 19:785-795. [PMID: 30269446 PMCID: PMC6194354 DOI: 10.1631/jzus.b1700506] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Objective: Salmonella enterica remains a major cause of food-borne disease in humans, and Salmonella Typhimurium (ST) contamination of poultry products is a worldwide problem. Since macrophages play an essential role in controlling Salmonella infection, the aim of this study was to evaluate the effect of glycyrrhizic acid (GA) on immune function of chicken HD11 macrophages. Methods: Chicken HD11 macrophages were treated with GA (0, 12.5, 25, 50, 100, 200, 400, or 800 μg/ml) and lipopolysaccharide (LPS, 500 ng/ml) for 3, 6, 12, 24, or 48 h. Evaluated responses included phagocytosis, bacteria-killing, gene expression of cell surface molecules (cluster of differentiation 40 (CD40), CD80, CD83, and CD197) and antimicrobial effectors (inducible nitric oxide synthase (iNOS), NADPH oxidase-1 (NOX-1), interferon-γ (IFN-γ), LPS-induced tumor necrosis factor (TNF)-α factor (LITAF), interleukin-6 (IL-6), and IL-10), and production of nitric oxide (NO) and hydrogen peroxide (H2O2). Results: GA increased the internalization of both fluorescein isothiocyanate (FITC)-dextran and ST by HD11 cells and markedly decreased the intracellular survival of ST. We found that the messenger RNA (mRNA) expression of cell surface molecules (CD40, CD80, CD83, and CD197) and cytokines (IFN-γ, IL-6, and IL-10) of HD11 cells was up-regulated following GA exposure. The expression of iNOS and NOX-1 was induced by GA and thereby the productions of NO and H2O2 in HD11 cells were enhanced. Notably, it was verified that nuclear factor-κB (NF-κB) and c-Jun N-terminal kinase (JNK) pathways were responsible for GA-induced synthesis of NO and IFN-γ gene expression. Conclusions: Taken together, these results suggested that GA exhibits a potent immune regulatory effect to activate chicken macrophages and enhances Salmonella-killing capacity.
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Affiliation(s)
- Bai-Kui Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yu-Long Mao
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Li Gong
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Xu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shou-Qun Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, China
| | - Yi-Bing Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wei-Fen Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
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Soleto I, Fischer U, Tafalla C, Granja AG. Identification of a Potential Common Ancestor for Mammalian Cross-Presenting Dendritic Cells in Teleost Respiratory Surfaces. Front Immunol 2018; 9:59. [PMID: 29422901 PMCID: PMC5788898 DOI: 10.3389/fimmu.2018.00059] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/09/2018] [Indexed: 12/13/2022] Open
Abstract
Dendritic cells (DCs) are highly specialized antigen-presenting cells that bridge innate and adaptive immune responses in vertebrates, being key modulators in the initiation of specific responses. Although teleost fish present the main elements of a fully developed adaptive immune system, not many studies have focused on identifying specific DC subsets in teleost species. Previous work from our group identified in rainbow trout (Oncorhynchus mykiss) skin a DC subpopulation co-expressing CD8α and major histocompatibility complex II β on the cell surface. Interestingly, these CD8+ DCs expressed common unique markers of mammalian cross-presenting DCs, a DC subset with an important role in antigen presentation and activation of CD8+ T cytotoxic lymphocytes. In this study, we have identified a similar DC subset in rainbow trout gills that also transcribes molecules uniquely expressed on diverse mammalian cross-presenting DC populations such as CD8, CD103, CD141, Batf3, IFN regulatory protein 8, and toll-like receptor 3. Hence, we have undertaken a broad phenotypic and functional characterization of this new DC subset that includes the confirmation of novel capacities for DCs in teleost, such an IgM-binding capacity and responsiveness to CD40 ligand. Furthermore, our results show that in gills, this DC subset shows some different phenotypic and functional characteristics when compared with their homologs in the skin, suggesting an adaptation of the cells to different mucosal tissues or different maturation status depending on their location. Our findings contribute to increase our knowledge on fish cross-presenting DCs, an important cell population to take into account for the future design of mucosal vaccination strategies.
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Affiliation(s)
- Irene Soleto
- Centro de Investigación en Sanidad Animal (CISA), INIA, Valdeolmos, Spain
| | - Uwe Fischer
- Bundesforschungsinstitut für Tiergesundheit, Friedrich-Loeffler-Institut (FLI), Insel Riems, Germany
| | - Carolina Tafalla
- Centro de Investigación en Sanidad Animal (CISA), INIA, Valdeolmos, Spain
| | - Aitor G Granja
- Centro de Investigación en Sanidad Animal (CISA), INIA, Valdeolmos, Spain
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6
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Huang C, Zhang L, Ling F, Wen S, Luo Y, Liu H, Liu J, Zheng W, Liang M, Sun J, Lin YK. Effect of immune tolerance induced by immature dendritic cells and CTLA4-Ig on systemic lupus erythematosus: An in vivo study. Exp Ther Med 2018; 15:2499-2506. [PMID: 29456655 DOI: 10.3892/etm.2018.5697] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 07/27/2017] [Indexed: 11/06/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a multi-organ autoimmune disease in which tissue damage is caused by autoantibodies. The induction of specific immune tolerance, including the utilization of immune regulatory cells, may enhance the therapeutic effects of organ transplantation in patients with SLE. Furthermore, inhibiting immune responses has been reported to be an effective treatment for SLE. However, few studies have explored the association between an increased immune tolerance and a decreased immune response in SLE treatment. Dendritic cells (DCs), which are highly efficient antigen-presenting cells, are able to induce specific tolerance, while cytotoxic T lymphocyte antigen 4-immunoglobulin (CTLA4-Ig) inhibits the immune response. In the present study, interleukin (IL)-10-treated DCs and CTLA4-Ig were administered to mice with SLE alone or in combination and the therapeutic effects were investigated. IL-10 was added into the culture medium of bone marrow-derived DCs to prevent them from differentiating into mature cells. Low levels of major histocompatibility complex II, cluster of differentiation (CD)40, CD80 and CD86 were detected, which indicated that the immature state of DCs was maintained. IL-10-treated DCs were subsequently injected into the caudal vein of B6.MRL-Faslpr/J lupus mice, which are an established animal model of SLE. To amplify the tolerance effect, mice were simultaneously injected with CTLA4-Ig. Compared with the IL-10-treated DC and CTLA4-Ig groups, combined treatment with IL-10-treated DCs and CTLA4-Ig strongly induced immune tolerance in mice with SLE, as indicated by the significantly reduced levels of urine protein, anti-nuclear antibody, double-stranded DNA and IL-17A. A significant decrease in the proportion of T helper cells and an increase in the proportion of CD4+ forkhead box protein P3+ Treg cells was also observed, further confirming the induction of immune tolerance. These results suggest that combined treatment with IL-10-DCs and CTLA4-Ig may be a promising novel therapeutic strategy for the treatment of SLE.
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Affiliation(s)
- Cuili Huang
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Lidan Zhang
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Fang Ling
- Department of Cell Biology and Genetics, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Sijian Wen
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yanyan Luo
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Hui Liu
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jingping Liu
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Wenjun Zheng
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Ming Liang
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Jian Sun
- Department of Cell Biology and Genetics, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - You-Kun Lin
- Department of Dermatology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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7
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Granja AG, Leal E, Pignatelli J, Castro R, Abós B, Kato G, Fischer U, Tafalla C. Identification of Teleost Skin CD8α+ Dendritic-like Cells, Representing a Potential Common Ancestor for Mammalian Cross-Presenting Dendritic Cells. THE JOURNAL OF IMMUNOLOGY 2015; 195:1825-37. [PMID: 26179908 DOI: 10.4049/jimmunol.1500322] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/17/2015] [Indexed: 01/09/2023]
Abstract
Although fish constitute the most ancient animal group in which an acquired immune system is present, the presence of dendritic cells (DCs) in teleosts has been addressed only briefly, and the identification of a specific DC subset in teleosts remained elusive because of the lack of specific Abs. In mice, DCs expressing CD8α(+) in lymphoid tissues have the capacity to cross-present extracellular Ags to T cells through MHC I, similarly to tissue-derived CD103(+) DCs and the human CD141(+) DC population. In the current study, we identified a large and highly complex subpopulation of leukocytes coexpressing MHC class II and CD8α. This CD8α(+) MHC II(+) DC-like subpopulation constituted ∼1.2% of the total leukocyte population in the skin, showing phenotypical and functional characteristics of semimature DCs that seem to locally regulate mucosal immunity and tolerance in a species lacking lymph nodes. Furthermore, we identified trout homologs for CD141 and CD103 and demonstrated that, in trout, this skin CD8(+) DC-like subpopulation expresses both markers. To our knowledge, these results provide the first evidence of a specific DC-like subtype in nonimmune tissue in teleosts and support the hypothesis of a common origin for all mammalian cross-presenting DCs.
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Affiliation(s)
- Aitor G Granja
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
| | - Esther Leal
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
| | - Jaime Pignatelli
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
| | - Rosario Castro
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
| | - Beatriz Abós
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
| | - Goshi Kato
- Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Uwe Fischer
- Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, 17493 Greifswald-Insel Riems, Germany
| | - Carolina Tafalla
- Centro de Investigación en Sanidad Animal, Valdeolmos, 28130 Madrid, Spain; and
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8
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Heeren AM, Koster BD, Samuels S, Ferns DM, Chondronasiou D, Kenter GG, Jordanova ES, de Gruijl TD. High and interrelated rates of PD-L1+CD14+ antigen-presenting cells and regulatory T cells mark the microenvironment of metastatic lymph nodes from patients with cervical cancer. Cancer Immunol Res 2014; 3:48-58. [PMID: 25361854 DOI: 10.1158/2326-6066.cir-14-0149] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A better understanding of the microenvironment in relation to lymph node metastasis is essential for the development of effective immunotherapeutic strategies against cervical cancer. In the present study, we investigated the microenvironment of tumor-draining lymph nodes of patients with cervical cancer by comprehensive flow cytometry-based phenotyping and enumeration of immune-cell subsets in tumor-negative (LN(-), n = 20) versus tumor-positive lymph nodes (LN(+), n = 8), and by the study of cytokine release profiles (n = 4 for both LN(-) and LN(+)). We found significantly lower CD4(+) and higher CD8(+) T-cell frequencies in LN(+) samples, accompanied by increased surface levels of activation markers (HLA-DR; ICOS; PD-1; CTLA-4) and the memory marker CD45RO. Furthermore, in LN(+), we found increased rates of a potentially regulatory antigen-presenting cell (APC) subset (CD11c(hi)CD14(+)PD-L1(+)) and of myeloid-derived suppressor cell subsets; the LN(+) APC subset correlated with significantly elevated frequencies of FoxP3(+) regulatory T cells (Treg). After in vitro stimulation with different Toll-like receptor (TLR) ligands (PGN; Poly-IC; R848), we observed higher production levels of IL6, IL10, and TNFα but lower levels of IFNγ in LN(+) samples. We conclude that, despite increased T-cell differentiation and activation, a switch to a profound immune-suppressive microenvironment in LN(+) of patients with cervical cancer will enable immune escape. Our data indicate that the CD14(+)PD-L1(+) APC/Treg axis is a particularly attractive and relevant therapeutic target to specifically tackle microenvironmental immune suppression and thus enhances the efficacy of immunotherapy in patients with metastasized cervical cancer.
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Affiliation(s)
- A Marijne Heeren
- Department of Medical Oncology, VU University Medical Center-Cancer Center Amsterdam, Amsterdam, the Netherlands. Center Gynecological Oncology Amsterdam (CGOA), Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, the Netherlands
| | - Bas D Koster
- Department of Medical Oncology, VU University Medical Center-Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Sanne Samuels
- Center Gynecological Oncology Amsterdam (CGOA), Department of Gynecology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, the Netherlands
| | - Debbie M Ferns
- Center Gynecological Oncology Amsterdam (CGOA), Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, the Netherlands
| | - Dafni Chondronasiou
- Department of Medical Oncology, VU University Medical Center-Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Gemma G Kenter
- Center Gynecological Oncology Amsterdam (CGOA), Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, the Netherlands. Center Gynecological Oncology Amsterdam (CGOA), Department of Gynecology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, the Netherlands
| | - Ekaterina S Jordanova
- Center Gynecological Oncology Amsterdam (CGOA), Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, the Netherlands
| | - Tanja D de Gruijl
- Department of Medical Oncology, VU University Medical Center-Cancer Center Amsterdam, Amsterdam, the Netherlands.
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Xu C, Chen X, Chang C, Wang G, Wang W, Zhang L, Zhu Q, Wang L. Genome-wide analysis of gene expression in dendritic cells from rat regenerating liver after partial hepatectomy. Cell Biochem Funct 2011; 29:255-64. [DOI: 10.1002/cbf.1748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 01/03/2011] [Accepted: 02/02/2011] [Indexed: 11/07/2022]
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10
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The evaluation of survival and proliferation of lymphocytes in autologous mixed leukocyte reaction with dendritic cells. The comparison of incorporation of 3H-thymidine and differential gating method. Cell Immunol 2011; 271:78-84. [DOI: 10.1016/j.cellimm.2011.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 05/24/2011] [Accepted: 06/08/2011] [Indexed: 11/20/2022]
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11
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Further increase in the expression of activation markers on monocyte-derived dendritic cells in coronary artery disease patients with ectasia compared to patients with coronary artery disease alone. Mediators Inflamm 2010; 2010:748919. [PMID: 20628522 PMCID: PMC2902079 DOI: 10.1155/2010/748919] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 04/12/2010] [Accepted: 04/27/2010] [Indexed: 12/13/2022] Open
Abstract
Background. Coronary artery ectasia (CAE) is defined as localized or diffuse dilation of the coronary arteries. There are scarce data about the role of dendritic cells in CAE development. In this study we investigated the activation markers on the surface of monocyte-derived dendritic cells (mDCs) in coronary artery disease (CAD) patients with or without CAE.
Method. The study consisted of 6 patients who had obstructive CAD with CAE, 6 CAD patients without CAE and 6 subjects with angiographically normal coronary arteries. mDCs were cultivated from peripheral blood monocytes. Surface activation markers were detected by flow cytometry.
Results. CAD patients with CAE were detected to have significantly higher mean fluorescence intensities of CD11b, CD11c, CD54 , CD83, CD86 and MHC Class II molecules on mDCs in comparison to CAD patients without CAE and normal controls (P < .001 for all). A significant positive correlation was found between the number of vessels with CAE and the levels of CD11c, CD86, and MHC Class II molecules.
Conclusion. mDCs display an increased cell surface concentration of activation molecules in CAD patients with CAE compared to patients with CAD alone. DC activation may play an important role for CAE development in patients with CAD.
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12
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Shankar SP, Babensee JE. Comparative characterization of cultures of primary human macrophages or dendritic cells relevant to biomaterial studies. J Biomed Mater Res A 2010; 92:791-800. [PMID: 19274715 DOI: 10.1002/jbm.a.32406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Macrophages are central mediators of biomaterial-associated wound healing. Dendritic cells (DCs) link innate and adaptive immunity and are important in the context of the host response to combination products. Starting with human peripheral blood mononuclear cells (PBMCs), DCs were derived from monocytes upon culture with granulocyte macrophage colony-stimulating factor and interleukin-4; macrophages were derived from monocytes upon culture without cytokines. Macrophage or DC cultures were characterized at relevant timepoints in both adherent and nonadherent fractions on control Primaria surfaces to characterize and define these inflammatory/immune cells as a prequel to their use in in vitro test biomaterial-host response studies. At day 10 (typical time for harvesting macrophages for subsequent treatment with test biomaterials), macrophages were CD11c+, macrophage mannose receptor (MMR)+, CD14+, and CD64+. At day 6 (typical time for harvesting of DCs after 24-h treatment with test biomaterials), DCs were CD1c+, CD11c+, CD123+, MMR+, CD14+, and CD64-. Furthermore, CD3+ and CD4+ T lymphocytes and CD19+ and CD24+ B lymphocytes were present in both cultures at all timepoints, although to different extents. Immature DCs (approximately 15 microm), were rounded but presented extensive dendritic processes upon maturation with lipopolysaccharide. Alternatively, adherent macrophages (approximately 15-20 microm) displayed internalized lipids and exhibited few membrane processes. The characterization and comparison of existing techniques to establish reliable, reproducible primary cultures of DCs or macrophages provides an important basis for examining and interpreting complex macrophage/DC-lymphocyte-orchestrated host responses in future studies with equivalent cell populations on test biomaterials.
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Affiliation(s)
- Sucharita P Shankar
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Drive Atlanta, Georgia 30332, USA
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13
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Epigallocatechin gallate affects human dendritic cell differentiation and maturation. J Allergy Clin Immunol 2007; 121:209-14. [PMID: 17935769 DOI: 10.1016/j.jaci.2007.08.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Revised: 08/06/2007] [Accepted: 08/08/2007] [Indexed: 11/22/2022]
Abstract
BACKGROUND Epigallocatechin gallate (EGCG), a component of green tea catechin with the strongest biological activity, has been focused in recent years because of its anti-inflammatory and immunomodulatory activities. Dendritic cells (DCs) are professional antigen-presenting cells, capable of priming naive T cells, and play the key roles in the activation of T-cell-mediated immune responses. OBJECTIVE We aimed to investigate the effect of EGCG on human monocyte-derived DCs (MODCs) and, consequently, on the T-cell-mediated immune response. METHODS The induction of apoptosis, and the detailed phenotypic and functional changes of MODCs, generated by culture of peripheral blood monocytes in the presence of GM-CSF and IL-4, induced by EGCG was investigated and compared with the effects of dexamethasone. RESULTS Epigallocatechin gallate induced apoptosis and affected the phenotype of the developing DCs. The expressions of CD83, CD80, CD11c, and MHC class II, which are molecules essential for antigen presentation by DCs, were downregulated by EGCG. EGCG also suppressed the endocytotic ability of immature DCs, whereas dexamethasone-treated DCs had higher endocytotic ability than control DCs. Most importantly, mature DCs treated with EGCG inhibited stimulatory activity toward allogeneic T cells while secreting high amounts of IL-10. CONCLUSION Epigallocatechin gallate induces immunosuppressive alterations on human MODCs, both by induction of apoptosis and suppression of cell surface molecules and antigen presentation.
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Burvall K, Palmberg L, Larsson K. Organic dust-induced activation, adhesion to substrate and expression of intercellular adhesion molecules in THP-1 monocytes. Life Sci 2007; 80:1598-607. [PMID: 17320911 DOI: 10.1016/j.lfs.2007.01.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 12/01/2006] [Accepted: 01/19/2007] [Indexed: 02/08/2023]
Abstract
Inhalation of organic dust in a swine confinement building induces systemic reactions, increased bronchial responsiveness and intense airway inflammation in previously unexposed, healthy subjects. These effects are self-limiting, but chronic respiratory symptoms are frequently observed in swine confinement workers. The present study was aimed at investigating organic dust-induced activation of the monocytic leukemia cell line, THP-1. Unstimulated THP-1 cells proliferate in suspension but cultivation for several days in medium with complete dust or 0.22-mu-filtered suspension, caused a subset of the THP-1 cells to adhere to the substratum. As assessed by transmission light- and indirect immunofluorescence microscopy, dust-stimulated adherent THP-1 cells adopted macrophage-like morphology and expressed vimentin. Intercellular adhesion molecule (ICAM)-1 was expressed in all dust-activated adherent cells, but only in 1% of the unstimulated cells in suspension. Sialoadhesin, a macrophage marker, was detected in dust-stimulated adherent THP-1 cells but not in the parental monocytes. Serum factors were required for the dust-induced expression of sialoadhesin, but not for adhesion to substrate or expression of ICAM-1. In addition, morphology and expression of vascular endothelial growth factor (VEGF) of dust-stimulated adherent cells equalled that of PMA-differentiated THP-1 cells, but the PMA-differentiated cells exhibited weak sialoadhesin labelling. In conclusion, exposure to organic dust from a swine confinement building activated a subset of THP-1 monocytes inducing expression of intercellular adhesion molecules, which are important in inflammation. The sustained adhesion to substrate indicates that organic dust from a swine confinement building may contain agents that prevent deactivation and detachment of the cells.
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Affiliation(s)
- Karin Burvall
- The National Institute of Environmental Medicine, Lung and Allergy Research, Karolinska Institutet, Box 287, SE-171 77 Stockholm, Sweden
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