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CD103+ dendritic cell

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https://www.readbyqxmd.com/read/28515363/lung-cd103-dendritic-cells-restrain-allergic-airway-inflammation-through-il-12-production
#1
Laura Conejero, Sofía C Khouili, Sarai Martínez-Cano, Helena M Izquierdo, Paola Brandi, David Sancho
DCs are necessary and sufficient for induction of allergic airway inflammation. CD11b+ DCs direct the underlying Th2 immunity, but debate surrounds the function of CD103+ DCs in lung immunity and asthma after an allergic challenge. We challenged Batf3-/- mice, which lacked lung CD103+ DCs, with the relevant allergen house dust mite (HDM) as a model to ascertain their role in asthma. We show that acute and chronic HDM exposure leads to defective Th1 immunity in Batf3-deficient mice. In addition, chronic HDM challenge in Batf3-/- mice results in increased Th2 and Th17 immune responses and exacerbated airway inflammation...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28500076/stat5-is-required-for-cd103-dendritic-cell-and-alveolar-macrophage-development-and-protection-from-lung-injury
#2
William E Eddy, Ke-Qin Gong, Bryan Bell, William C Parks, Steven F Ziegler, Anne M Manicone
We tested the role of Stat5 in dendritic cell and alveolar macrophage (AM) homeostasis in the lung using CD11c-cre mediated deletion (Cre(+)5(f/f)). We show that Stat5 is required for CD103(+) dendritic cell and AM development. We found that fetal monocyte maturation into AMs was impaired in Cre(+)5(f/f) mice, and we also confirmed impaired AM development of progenitor cells using mixed chimera experiments. In the absence of Stat5 signaling in AMs, mice developed alveolar proteinosis with altered lipid homeostasis...
May 12, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28495789/dietary-nondigestible-oligosaccharides-and-bifidobacterium-breve-m-16v-suppress-allergic-inflammation-in-intestine-via-targeting-dendritic-cell-maturation
#3
Sander de Kivit, Atanaska I Kostadinova, JoAnn Kerperien, Mary E Morgan, Veronica Ayechu Muruzabal, Gerard A Hofman, Leon M J Knippels, Aletta D Kraneveld, Johan Garssen, Linette E M Willemsen
Dietary intervention with short-chain galacto-oligosaccharides (scGOS), long-chain fructo-oligosaccharides (lcFOS) and Bifidobacterium breve M-16V (Bb) (GF/Bb) suppresses food allergic symptoms in mice, potentially via intestinal epithelial cell (IEC)-derived galectin-9. Furthermore, in vitro studies showed galacto- and fructo-oligosaccharides (GF) to enhance the immunomodulatory capacity of a TLR9 ligand representing bacterial CpG DNA when exposed to IEC. In this study, we investigated whether GF/Bb modulates dendritic cells (DCs) and subsequent Th2 and regulatory T cell (Treg) frequency in the small intestinal lamina propria (SI-LP)...
May 11, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28486109/tumor-residing-batf3-dendritic-cells-are-required-for-effector-t-cell-trafficking-and-adoptive-t-cell-therapy
#4
Stefani Spranger, Daisy Dai, Brendan Horton, Thomas F Gajewski
Effector T cells have the capability of recognizing and killing cancer cells. However, whether tumors can become immune resistant through exclusion of effector T cells from the tumor microenvironment is not known. By using a tumor model resembling non-T cell-inflamed human tumors, we assessed whether adoptive T cell transfer might overcome failed spontaneous priming. Flow cytometric assays combined with intra-vital imaging indicated failed trafficking of effector T cells into tumors. Mechanistically, this was due to the absence of CXCL9/10, which we found to be produced by CD103(+) dendritic cells (DCs) in T cell-inflamed tumors...
May 8, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28458670/gut-microbiota-species-can-provoke-both-inflammatory-and-tolerogenic-immune-responses-in-human-dendritic-cells-mediated-by-retinoic-acid-receptor-alpha-ligation
#5
Krisztian Bene, Zsofia Varga, Viktor O Petrov, Nadiya Boyko, Eva Rajnavolgyi
Dendritic cells are considered as the main coordinators of both mucosal and systemic immune responses, thus playing a determining role in shaping the outcome of effector cell responses. However, it is still uncovered how primary human monocyte-derived DC (moDC) populations drive the polarization of helper T (Th) cells in the presence of commensal bacteria harboring unique immunomodulatory properties. Furthermore, the individual members of the gut microbiota have the potential to modulate the outcome of immune responses and shape the immunogenicity of differentiating moDCs via the activation of retinoic acid receptor alpha (RARα)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28438184/microbiota-activated-cd103-dcs-stemming-from-microbiota-adaptation-specifically-drive-%C3%AE-%C3%AE-t17-proliferation-and-activation
#6
Chris Fleming, Yihua Cai, Xuan Sun, Venkatakrishna R Jala, Feng Xue, Samantha Morrissey, Yu-Ling Wei, Yueh-Hsiu Chien, Huang-Ge Zhang, Bodduluri Haribabu, Jian Huang, Jun Yan
BACKGROUND: IL-17-producing γδT cells (γδT17) promote autoinflammatory diseases and cancers. Yet, γδT17 peripheral regulation has not been thoroughly explored especially in the context of microbiota-host interaction. The potent antigen-presenting CD103(+) dendritic cell (DC) is a key immune player in close contact with both γδT17 cells and microbiota. This study presents a novel cellular network among microbiota, CD103(+) DCs, and γδT17 cells. METHODS: Immunophenotyping of IL-17r(-/-) mice and IL-17r(-/-) IRF8(-/-) mice were performed by ex vivo immunostaining and flow cytometric analysis...
April 24, 2017: Microbiome
https://www.readbyqxmd.com/read/28434074/adipose-derived-stem-cells-ameliorate-experimental-murine-colitis-via-tsp-1-dependent-activation-of-latent-tgf-%C3%AE
#7
Hiroshi Takeyama, Tsunekazu Mizushima, Mamoru Uemura, Naotsugu Haraguchi, Junichi Nishimura, Taishi Hata, Chu Matsuda, Ichiro Takemasa, Masakazu Ikenaga, Kohei Murata, Hirofumi Yamamoto, Yuichiro Doki, Masaki Mori
BACKGROUND: Adipose tissue-derived stem cells (ASCs) have been investigated as therapeutic tools for a variety of autoimmune diseases, including inflammatory diseases. However, the mechanisms underlying the immunomodulatory properties of ASCs are not well understood. Here, we investigated the mechanism of regulatory T cell (Treg) induction in ASC therapy in a murine model of inflammatory bowel disease. METHODS: Acute colitis was induced in mice using dextran sulfate sodium and ASCs administered intraperitoneally...
April 22, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28423181/mesenteric-lymph-node-cd11b-cd103-pd-l1-high-dendritic-cells-highly-induce-regulatory-t-cells
#8
Aya Shiokawa, Ryutaro Kotaki, Tomohiro Takano, Haruyo Nakajima-Adachi, Satoshi Hachimura
Dendritic cells (DCs) in mesenteric lymph nodes (MLNs) induce Foxp3(+) regulatory T cells to regulate immune responses to beneficial or non-harmful agents in the intestine, such as commensal bacteria and foods. Several studies in MLN DCs have revealed that CD103(+) DC subset highly induces regulatory T cells, and another study has reported that MLN DCs from PD-L1-deficient mice could not induce regulatory T cells. Thus, the present study investigated expression of these molecules on MLN CD11c(+) cells. Four distinct subsets expressing CD103 and/or PD-L1 were identified, namely CD11b(+) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(Low) , and CD11b(+) CD103(-) PD-L1(Int...
April 19, 2017: Immunology
https://www.readbyqxmd.com/read/28405506/oral-delivery-of-tumor-microparticle-vaccines-activates-nod2-signaling-pathway-in-ileac-epithelium-rendering-potent-antitumor-t-cell-immunity
#9
Wenqian Dong, Huafeng Zhang, Xiaonan Yin, Yuying Liu, Degao Chen, Xiaoyu Liang, Xun Jin, Jiadi Lv, Jingwei Ma, Ke Tang, Zhuowei Hu, Xiaofeng Qin, Bo Huang
Exploiting gut mucosal immunity to design new antitumor vaccination strategy remains unexplored. Tumor cell-derived microparticles (T-MP) are natural biomaterials that are capable of delivering tumor antigens and innate signals to dendritic cells (DC) for tumor-specific T cell immunity. Here, we show that T-MPs by oral vaccination route effectively access and activate mucosal epithelium, leading to subsequent antitumor T cell responses. Oral vaccination of T-MPs generated potent inhibitory effect against the growth of B16 melanoma and CT26 colon cancer in mice, which required both T cell and DC activation...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28378805/neonatal-mice-possess-two-phenotypically-and-functionally-distinct-lung-migratory-cd103-dendritic-cell-populations-following-respiratory-infection
#10
T J Ruckwardt, K M Morabito, E Bar-Haim, D Nair, B S Graham
The CD103(+) subset of lung-migratory dendritic cells (DCs) plays an important role in the generation of CD8(+) T cell responses following respiratory infection. Here, we demonstrate that the dependence on CD103(+) DCs for stimulation of RSV-specific T cells is both epitope and age-dependent. CD103(+) DCs in neonatal mice develop two phenotypically and functionally distinct populations following respiratory infection. Neonatal CD103(+) DCs expressing low levels of CD103 (CD103lo DCs) and other lineage and maturation markers including costimulatory molecules are phenotypically immature and functionally limited...
April 5, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28342908/intestinal-dendritic-cell-licensing-through-toll-like-receptor-4-is-required-for-oral-tolerance-in-patients-with-allergic-contact-dermatitis
#11
Feriel Hacini-Rachinel, Mercedes Gomez de Agüero, Reem Kanjarawi, Ludovic Moro-Sibilot, Jean-Benoit Le Luduec, Claire Macari, Gilles Boschetti, Emilie Bardel, Philippe Langella, Bertrand Dubois, Dominique Kaiserlian
BACKGROUND: Induction of oral tolerance to haptens is an efficient way to prevent allergic contact dermatitis (ACD) in mice. Toll-like receptor (TLR)-mediated sensing of the microbiota contributes to gut homeostasis, yet whether it contributes to induction of oral tolerance has not been documented. OBJECTIVE: We examined whether oral tolerance to the contact sensitizer 2,4-dinitro-fluorobenzene (DNFB) depends on microbiota/TLRs and evaluated the role of TLR4 on the tolerogenic function of intestinal dendritic cells (DCs)...
March 22, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28316599/interleukin-4-inhibits-regulatory-t-cell-differentiation-through-regulating-cd103-dendritic-cells
#12
Lei Tu, Jie Chen, Hongwei Zhang, Lihua Duan
CD103+ dendritic cells (DCs) have been shown to play a crucial role in the pathogenesis of inflammatory bowel diseases (IBDs) through educating regulatory T (Treg) cells differentiation. However, the mechanism of CD103+ DCs subsets differentiation remains elusive. Interleukin (IL)-4 is a pleiotropic cytokine that is upregulated in certain types of inflammation, including IBDs and especially ulcerative colitis. However, the precise role of IL-4 in the differentiation of CD103+ DCs subpopulation remains unknown...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28276457/cd40-signalling-abrogates-induction-of-ror%C3%AE-t-treg-cells-by-intestinal-cd103-dcs-and-causes-fatal-colitis
#13
Christian Barthels, Ana Ogrinc, Verena Steyer, Stefanie Meier, Ferdinand Simon, Maria Wimmer, Andreas Blutke, Tobias Straub, Ursula Zimber-Strobl, Esther Lutgens, Peggy Marconi, Caspar Ohnmacht, Debora Garzetti, Bärbel Stecher, Thomas Brocker
Immune homeostasis in intestinal tissues depends on the generation of regulatory T (Treg) cells. CD103(+) dendritic cells (DCs) acquire microbiota-derived material from the gut lumen for transport to draining lymph nodes and generation of receptor-related orphan γt(+) (RORγt(+)) Helios(-)-induced Treg (iTreg) cells. Here we show CD40-signalling as a microbe-independent signal that can induce migration of CD103(+) DCs from the lamina propria (LP) to the mesenteric lymph nodes. Transgenic mice with constitutive CD11c-specific CD40-signalling have reduced numbers of CD103(+) DCs in LP and a low frequency of RORγt(+)Helios(-) iTreg cells, exacerbated inflammatory Th1/Th17 responses, high titres of microbiota-specific immunoglobulins, dysbiosis and fatal colitis, but no pathology is detected in other tissues...
March 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28261667/protein-malnutrition-modifies-innate-immunity-and-gene-expression-by-intestinal-epithelial-cells-and-human-rotavirus-infection-in-neonatal-gnotobiotic-pigs
#14
Anastasia N Vlasova, Francine C Paim, Sukumar Kandasamy, Moyasar A Alhamo, David D Fischer, Stephanie N Langel, Loic Deblais, Anand Kumar, Juliet Chepngeno, Lulu Shao, Huang-Chi Huang, Rosario A Candelero-Rueda, Gireesh Rajashekara, Linda J Saif
Malnutrition affects millions of children in developing countries, compromising immunity and contributing to increased rates of death from infectious diseases. Rotavirus is a major etiological agent of childhood diarrhea in developing countries, where malnutrition is prevalent. However, the interactions between the two and their combined effects on immune and intestinal functions are poorly understood. In this study, we used neonatal gnotobiotic (Gn) pigs transplanted with the fecal microbiota of a healthy 2-month-old infant (HIFM) and fed protein-deficient or -sufficient bovine milk diets...
March 2017: MSphere
https://www.readbyqxmd.com/read/28261212/%C3%AE-2%C3%A2-1-fructans-modulate-the-immune-system-in-vivo-in-a-microbiota-dependent-and%C3%A2-independent-fashion
#15
Floris Fransen, Neha M Sahasrabudhe, Marlies Elderman, Margaret Bosveld, Sahar El Aidy, Floor Hugenholtz, Theo Borghuis, Ben Kousemaker, Simon Winkel, Christa van der Gaast-de Jongh, Marien I de Jonge, Mark V Boekschoten, Hauke Smidt, Henk A Schols, Paul de Vos
It has been shown in vitro that only specific dietary fibers contribute to immunity, but studies in vivo are not conclusive. Here, we investigated degree of polymerization (DP) dependent effects of β2→1-fructans on immunity via microbiota-dependent and -independent effects. To this end, conventional or germ-free mice received short- or long-chain β2→1-fructan for 5 days. Immune cell populations in the spleen, mesenteric lymph nodes (MLNs), and Peyer's patches (PPs) were analyzed with flow cytometry, genome-wide gene expression in the ileum was measured with microarray, and gut microbiota composition was analyzed with 16S rRNA sequencing of fecal samples...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28256637/ebola-virus-infection-kinetics-in-chimeric-mice-reveal-a-key-role-of-t-cells-as-barriers-for-virus-dissemination
#16
Anja Lüdtke, Paula Ruibal, David M Wozniak, Elisa Pallasch, Stephanie Wurr, Sabrina Bockholt, Sergio Gómez-Medina, Xiangguo Qiu, Gary P Kobinger, Estefanía Rodríguez, Stephan Günther, Susanne Krasemann, Juliana Idoyaga, Lisa Oestereich, César Muñoz-Fontela
Ebola virus (EBOV) causes severe systemic disease in humans and non-human primates characterized by high levels of viremia and virus titers in peripheral organs. The natural portals of virus entry are the mucosal surfaces and the skin where macrophages and dendritic cells (DCs) are primary EBOV targets. Due to the migratory properties of DCs, EBOV infection of these cells has been proposed as a necessary step for virus dissemination via draining lymph nodes and blood. Here we utilize chimeric mice with competent hematopoietic-driven immunity, to show that EBOV primarily infects CD11b(+) DCs in non-lymphoid and lymphoid tissues, but spares the main cross-presenting CD103(+) DC subset...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28231307/differential-regulation-of-c5a-receptor-1-in-innate-immune-cells-during-the-allergic-asthma-effector-phase
#17
Fanny Ender, Anna V Wiese, Inken Schmudde, Jing Sun, Tillman Vollbrandt, Peter König, Yves Laumonnier, Jörg Köhl
C5a drives airway constriction and inflammation during the effector phase of allergic asthma, mainly through the activation of C5a receptor 1 (C5aR1). Yet, C5aR1 expression on myeloid and lymphoid cells during the allergic effector phase is ill-defined. Recently, we generated and characterized a floxed green fluorescent protein (GFP)-C5aR1 knock-in mouse. Here, we used this reporter strain to monitor C5aR1 expression in airway, pulmonary and lymph node cells during the effector phase of OVA-driven allergic asthma...
2017: PloS One
https://www.readbyqxmd.com/read/28198365/development-of-conventional-dendritic-cells-from-common-bone-marrow-progenitors-to-multiple-subsets-in-peripheral-tissues
#18
REVIEW
D Sichien, B N Lambrecht, M Guilliams, C L Scott
Our understanding of conventional dendritic cell (cDC) development and the functional specializations of distinct subsets in the peripheral tissues has increased greatly in recent years. Here, we review cDC development from the distinct progenitors in the bone marrow through to the distinct cDC subsets found in barrier tissues, providing an overview of the different subsets described in each location. In addition, we detail the transcription factors and local signals that have been proposed to control this developmental process...
February 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28194020/cd103-lung-dendritic-cells-ldcs-induce-stronger-th1-th17-immunity-to-a-bacterial-lung-infection-than-cd11b-hi-ldcs
#19
Sudhanshu Shekhar, Ying Peng, Shuhe Wang, Xi Yang
Recent studies suggest differential roles for CD103+ and CD11b(hi) lung dendritic cells (LDCs) in host defense against viral and bacterial infections. In this study, we examined the contribution of these LDC subsets in protective immunity to chlamydial lung infection using a Chlamydia muridarum mouse infection model. We found that CD103+ LDCs showed higher expression of costimulatory molecules (CD40, CD80 and CD86) and increased production of cytokines (IL-12p70, IL-10, IL-23 and IL-6) compared with CD11b(hi) LDCs, but the expression of programmed death-ligand 1 (PD-L1) was similar between the two subsets...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28167776/tgf-%C3%AE-inhibitor-smad7-regulates-dendritic-cell-induced-autoimmunity
#20
Dominika Lukas, Nir Yogev, Junda M Kel, Tommy Regen, Ilgiz A Mufazalov, Yilang Tang, Florian Wanke, Boris Reizis, Werner Müller, Florian C Kurschus, Marco Prinz, Ingo Kleiter, Björn E Clausen, Ari Waisman
TGF-β is an anti-inflammatory cytokine whose signaling is negatively controlled by Smad7. Previously, we established a role for Smad7 in the generation of autoreactive T cells; however, the function of Smad7 in dendritic cells (DCs) remains elusive. Here, we demonstrate that DC-specific Smad7 deficiency resulted in elevated expression of the transcription factors Batf3 and IRF8, leading to increased frequencies of CD8(+)CD103(+) DCs in the spleen. Furthermore, Smad7-deficient DCs expressed higher levels of indoleamine 2,3-dioxygenase (IDO), an enzyme associated with tolerance induction...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
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