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CD103+ dendritic cell

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https://www.readbyqxmd.com/read/28438184/microbiota-activated-cd103-dcs-stemming-from-microbiota-adaptation-specifically-drive-%C3%AE-%C3%AE-t17-proliferation-and-activation
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
https://www.readbyqxmd.com/read/28140445/virulence-dependent-induction-of-interleukin-10-producing-tolerogenic-dendritic-cells-by-mycobacterium-tuberculosis-impedes-optimal-th1-proliferation
#16
Hongmin Kim, Kee Woong Kwon, Woo Sik Kim, Sung Jae Shin
Mycobacterium tuberculosis (Mtb) inhibits optimal Th1 responses during infection. However, the precise mechanisms by which virulent Mtb limits Th1 responses remain unclear. Here, we infected dendritic cells (DCs) with the virulent Mtb strain H37Rv or the attenuated strain H37Ra to investigate the phenotypic and functional alterations in DCs and resultant T cell responses. H37Rv-infected DCs suppressed Th1 responses more strongly than H37Ra-infected DCs. Interestingly, H37Rv, but not H37Ra, impaired DC surface molecule (CD80, CD86 and MHC class II) expression due to prominent IL-10 production while augmenting the expression of tolerogenic molecules including PD-L1, CD103, Tim-3, and indoleamine 2,3-dioxygenase (IDO) on DCs in a multiplicity-of-infection-dependent manner...
January 31, 2017: Immunology
https://www.readbyqxmd.com/read/28109087/cd103-cell-growth-factor-flt3l-enhances-the-efficacy-of-immune-checkpoint-blockades-in-murine-glioblastoma-model
#17
Xiaolin Miao, Yiqi Chen, Ke Hao, Meiqin Zheng, Bingyu Chen, Kaiqiang Li, Ying Wang, Wei Zhang, Yu Zhang, Xiaozhou Mou, Shanshan Jiang, Zhen Wang
Glioblastoma is a lethal disease featured with a high proliferation of tumor cells, excessive angiogenesis, and heavydrug resistance. The overall survival of glioblastoma patients was dismal even with intensive standard care. Recent advantages in immune checkpoint blockades are changing the treatment of cancers. However, the efficacy of immune checkpoint blockades in glioblastoma were unclear. Here, we investigated the roles of CD103<sup>+</sup> cells in regulating the effects of immune checkpoint blockades in glioblastoma mouse models...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28108233/murine-cd103-dendritic-cells-protect-against-steatosis-progression-towards-steatohepatitis
#18
Eva-Carina Heier, Anna Meier, Henrike Julich-Haertel, Sonja Djudjaj, Monica Rau, Thomas Tschernig, Andreas Geier, Peter Boor, Frank Lammert, Veronika Lukacs-Kornek
BACKGROUND & AIMS: Non-alcoholic fatty liver (NAFL) is the hepatic consequence of metabolic syndrome and can progress to non-alcoholic steatohepatitis (NASH). The identification of molecular and cellular factors that determine the progression of NASH and lead to irreversible hepatocellular damage are crucial. Dendritic cells (DCs) represent a heterogeneous cell population among which CD103(+) DCs play a significant role in immunity and tolerance. We aimed to clarify the role of this DC subset in the pathomechanism of NASH...
January 18, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28087652/differential-regulation-of-cd103-%C3%AE-e-integrin-expression-in-human-dendritic-cells-by-retinoic-acid-and-toll-like-receptor-ligands
#19
Mandi M Roe, Steve Swain, T Andrew Sebrell, Marisa A Sewell, Madison M Collins, Brian A Perrino, Phillip D Smith, Lesley E Smythies, Diane Bimczok
CD103 (αE integrin) is an important dendritic cell (DC) marker that characterizes functionally distinct DC subsets in mice and humans. However, the mechanism by which CD103 expression is regulated in human DCs and the role of CD103 for DC function are not very well understood. Here, we show that retinoic acid (RA) treatment of human monocyte-derived DCs (MoDCs) increased the ability of the DCs to synthesize RA and induced MoDC expression of CD103 and β7 at the mRNA and protein level. In contrast, RA was unable to induce the expression of CD103 in primary human DCs isolated from the gastric mucosa...
January 13, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28081153/dermal-%C3%AE-%C3%AE-t-cells-do-not-freely-re-circulate-out-of-skin-and-produce-il-17-to-promote-neutrophil-infiltration-during-primary-contact-hypersensitivity
#20
Xiaodong Jiang, Chang Ook Park, Jenna Geddes Sweeney, Min Jae Yoo, Olivier Gaide, Thomas Seth Kupper
The role of mouse dermal γδ T cells in inflammatory skin disorders and host defense has been studied extensively. It is known that dendritic epidermal T cells (DETC) have a monomorphic γδ T cell receptor (TCR) and reside in murine epidermis from birth. We asked if dermal γδ cells freely re-circulated out of skin, or behaved more like dermal resident memory T cells (TRM) in mice. We found that, unlike epidermal γδ T cells (DETC), dermal γδ cells are not homogeneous with regard to TCR, express the tissue resident T cell markers CD69 and CD103, bear skin homing receptors, and produce IL-17 and IL-22...
2017: PloS One
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