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https://www.readbyqxmd.com/read/28626924/group-2-ilcs-a-way-of-enhancing-immune-protection-against-human-helminths
#1
Norman Nausch, Francisca Mutapi
Group 2 innate lymphoid cells (ILC2s) play crucial roles in type 2 immune responses associated with allergic and autoimmune diseases, viral and helminth infections and tissue homeostasis. Experimental models show that in helminth infections ILC2s provide an early source of type 2 cytokines and therefore are essential for the induction of potentially protective type 2 responses. Much of our knowledge of ILC2s in helminth infections has come from experimental mouse models with very few studies analysing ILC2s in natural human infections...
June 19, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28617087/when-innate-responses-matter-ilc2s-loom-large-in-allergic-airway-inflammation
#2
Donata Vercelli
No abstract text is available yet for this article.
June 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28615106/-enhanced-ilc2-activity-contributes-to-metabolic-syndrome-multicomponent-aggregation-state-in-patients-with-type-2-diabetic-nephropathy
#3
Ping Lu, Yunyun Xu, Zhaoliang Su, Huaxi Xu
Objective To study the relationship between the activity of group II innate lymphoid cells (ILC2) in maintenance hemodialysis patients with type 2 diabetic nephropathy (DN) and metabolic syndrome (MS) multicomponent aggregation state. Methods The study enrolled 30 DN patients of stable condition treated with maintenance hemodialysis over 3 months, 30 newly diagnosed untreated type 2 diabetes patients and 30 healthy volunteers as controls. Real-time quantitative PCR (qRT-PCR) was used to detect the mRNA expression levels of retinoic acid receptor-related orphan receptor α (RORα), interleukin 17 receptor B (IL-17RB), IL-33 receptor T1/ST2, IL-5 and IL-13 in peripheral blood mononuclear cells (PBMCs)...
June 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28613415/composition-and-functionality-of-the-intrahepatic-innate-lymphoid-cell-compartment-in-human-non-fibrotic-and-fibrotic-livers
#4
Marianne Forkel, Lena Berglin, Eliisa Kekäläinen, Adrian Carlsson, Emma Svedin, Jakob Michaëlsson, Maho Nagasawa, Jonas S Erjefält, Michiko Mori, Malin Flodström-Tullberg, Annika Bergquist, Hans-Gustaf Ljunggren, Magnus Westgren, Ulrik Lindforss, Danielle Friberg, Carl Jorns, Ewa Ellis, Niklas K Björkström, Jenny Mjösberg
Human innate lymphoid cells have been described to exist in different organs, with functional deregulation of these cells contributing to several disease states. Here, we performed the first detailed characterization of the phenotype, tissue-residency properties and functionality of ILC1s, ILC2s and ILC3s in the human adult and fetal liver. In addition, we investigated changes in the ILC compartment in liver fibrosis. A unique composition of tissue-resident ILCs was observed in non-fibrotic livers as compared with that in mucosal tissues, with NKp44(-) ILC3s accounting for the majority of total intrahepatic ILCs...
June 14, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28612730/-innate-lymphoid-cells
#5
Adeline Crinier, Charlotte Viant, Mathilde Girard-Madoux, Éric Vivier
Innate Lymphoid Cells (ILC) are tissue-resident effector lymphocytes that differ from the B and T lymphocytes subsets since they lack specific antigen receptors derived from gene rearrangements. They can be divided into two groups, cytotoxic ILC (NK cells) which are dependent on the transcription factors Eomes and T-bet and produce IFN-γ, and helper-like ILC (ILC1, ILC2, ILC3) which are dependent on T-bet, GATA-3 or RORγT and produce IFN-γ, IL-5/IL-13 or IL-17/IL-22 respectively. Although they were described recently, ILC are the subject of a large number of studies that characterize their role as one of the first effectors of the innate immune response as well as in the development of a wide number of inflammatory disorders...
May 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28611297/endogenous-il-33-has-no-effect-on-the-progression-of-fibrosis-during-experimental-steatohepatitis
#6
Philippe Vasseur, Sarah Dion, Aveline Filliol, Valentine Genet, Catherine Lucas-Clerc, Girard Jean-Philippe, Christine Silvain, Jean-Claude Lecron, Claire Piquet-Pellorce, Michel Samson
Interleukin (IL)-33 has been recently reported to be strongly pro-fibrogenic in various models of liver disease. Our aim was to study the role of endogenous IL-33 in a diet-induced model of steatohepatitis. IL-33 deficient mice and wild type (WT) littermates received a high-fat diet (HFD), or a standard diet for 12 weeks. The HFD-induced steatohepatitis was associated with an upregulation of IL-33 transcripts and protein. An insulin tolerance test revealed lower systemic insulin sensitivity in IL-33-/-HFD mice than in WT-HFD mice...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28589929/type-2-innate-lymphoid-cells-control-the-development-of-atherosclerosis-in-mice
#7
Stephen A Newland, Sarajo Mohanta, Marc Clément, Soraya Taleb, Jennifer A Walker, Meritxell Nus, Andrew P Sage, Changjun Yin, Desheng Hu, Lauren L Kitt, Alison J Finigan, Hans-Reimer Rodewald, Christoph J Binder, Andrew N J McKenzie, Andreas J Habenicht, Ziad Mallat
Type-2 innate lymphoid cells (ILC2) are a prominent source of type II cytokines and are found constitutively at mucosal surfaces and in visceral adipose tissue. Despite their role in limiting obesity, how ILC2s respond to high fat feeding is poorly understood, and their direct influence on the development of atherosclerosis has not been explored. Here, we show that ILC2 are present in para-aortic adipose tissue and lymph nodes and display an inflammatory-like phenotype atypical of adipose resident ILC2. High fat feeding alters both the number of ILC2 and their type II cytokine production...
June 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28583618/new-anti-eosinophil-drugs-for-asthma-and-copd-targeting-the-trait
#8
REVIEW
Elisabeth H Bel, Anneke Ten Brinke
Asthma and chronic obstructive airways disease (COPD) are prevalent chronic inflammatory airway diseases that are responsible for a large global disease burden. Both diseases are complex and heterogeneous, and are increasingly recognized as overlapping syndromes that may share similar pathophysiologic mechanisms and treatable traits. Eosinophilic airway inflammation is considered the most influential treatable trait of chronic airway disease, and over the last decade several monoclonal antibodies and small molecule therapies have been developed to target this trait...
June 2, 2017: Chest
https://www.readbyqxmd.com/read/28579374/activated-plasmacytoid-dendritic-cells-regulate-type-2-innate-lymphoid-cells-mediated-airway-hyperreactivity
#9
Hadi Maazi, Homayon Banie, German Aleman, Nisheel Patel, Bowen Wang, Ishwarya Sankaranarayanan, Vipul Bhargava, Takahiro Sato, Gavin Lewis, Matteo Cesaroni, James Karras, Anuk Das, Pejman Soroosh, Omid Akbari
BACKGROUND: Allergic asthma is a prevalent inflammatory disease of the airways caused by dysregulated immune balance in the lungs with incompletely understood pathogenesis. The recently identified type 2 innate lymphoid cells (ILC2s) play significant roles in the pathogenesis of asthma. While ILC2-activating factors have been identified, the mechanisms that suppress ILC2s remain largely unknown. Plasmacytoid dendritic cells, pDCs, are important in antiviral immunity and in maintaining tolerance to inert antigens...
June 1, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28576981/stat1-represses-cytokine-producing-group-2-and-group-3-innate-lymphoid-cells-during-viral-infection
#10
Matthew T Stier, Kasia Goleniewska, Jacqueline Y Cephus, Dawn C Newcomb, Taylor P Sherrill, Kelli L Boyd, Melissa H Bloodworth, Martin L Moore, Kong Chen, Jay K Kolls, R Stokes Peebles
The appropriate orchestration of different arms of the immune response is critical during viral infection to promote efficient viral clearance while limiting immunopathology. However, the signals and mechanisms that guide this coordination are not fully understood. IFNs are produced at high levels during viral infection and have convergent signaling through STAT1. We hypothesized that STAT1 signaling during viral infection regulates the balance of innate lymphoid cells (ILC), a diverse class of lymphocytes that are poised to respond to environmental insults including viral infections with the potential for both antiviral or immunopathologic functions...
June 2, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28566478/ilc2-there-s-a-new-cell-in-town
#11
EDITORIAL
Yuan Min Wang, Mahnoor Bakhtiar, Stephen I Alexander
No abstract text is available yet for this article.
May 31, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28541554/activation-of-group-2-innate-lymphoid-cells-exacerbates-and-confers-corticosteroid-resistance-to-mouse-nasal-type-2-inflammation
#12
Taiyo Morikawa, Ayumi Fukuoka, Kazufumi Matsushita, Koubun Yasuda, Naruhito Iwasaki, Shoko Akasaki, Shigeharu Fujieda, Tomohiro Yoshimoto
Both Th2 cells and group 2 innate lymphoid cells (ILC2s) contribute to allergic diseases. However, their exact role and relationship in nasal allergic disorders is unclear. In this study, we investigated the cooperation of Th2 cells and ILC2s in a mouse model of nasal allergic disorder. To differentially activate Th2 cells and/or ILC2s in nasal mucosa, mice were intranasally administered ovalbumin (OVA) antigen, papain, an ILC2-activator, or both for 2 weeks. Epithelial thickness and number of eosinophils in the nasal mucosa were evaluated at 24 hours after the final challenge...
May 25, 2017: International Immunology
https://www.readbyqxmd.com/read/28539382/il233-a-novel-il-2-and-il-33-hybrid-cytokine-ameliorates-renal-injury
#13
Marta E Stremska, Sheethal Jose, Vikram Sabapathy, Liping Huang, Amandeep Bajwa, Gilbert R Kinsey, Poonam R Sharma, Saleh Mohammad, Diane L Rosin, Mark D Okusa, Rahul Sharma
CD4(+)Foxp3(+) regulatory T cells (Tregs) protect the kidney during AKI. We previously found that IL-2, which is critical for Treg homeostasis, upregulates the IL-33 receptor (ST2) on CD4(+) T cells, thus we hypothesized that IL-2 and IL-33 cooperate to enhance Treg function. We found that a major subset of Tregs in mice express ST2, and coinjection of IL-2 and IL-33 increased the number of Tregs in lymphoid organs and protected mice from ischemia-reperfusion injury (IRI) more efficiently than either cytokine alone...
May 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28534222/identification-of-innate-lymphoid-cells-in-single-cell-rna-seq-data
#14
Madeleine Suffiotti, Santiago J Carmona, Camilla Jandus, David Gfeller
Innate lymphoid cells (ILCs) consist of natural killer (NK) cells and non-cytotoxic ILCs that are broadly classified into ILC1, ILC2, and ILC3 subtypes. These cells recently emerged as important early effectors of innate immunity for their roles in tissue homeostasis and inflammation. Over the last few years, ILCs have been extensively studied in mouse and human at the functional and molecular level, including gene expression profiling. However, sorting ILCs with flow cytometry for gene expression analysis is a delicate and time-consuming process...
May 22, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28532656/the-il-33-st2-axis-is-crucial-in-type-2-airway-responses-induced-by-the-staphylococcus-aureus-protease-spld
#15
Andrea R Teufelberger, Maria Nordengrün, Harald Braun, Tania Maes, Katrien De Grove, Gabriele Holtappels, Clara O'Brien, Sharen Provoost, Hamida Hammad, Amanda Gonçalves, Rudi Beyaert, Wim Declercq, Peter Vandenabeele, Dmitri V Krysko, Barbara M Bröker, Claus Bachert, Olga Krysko
BACKGROUND: Chronic airway inflammatory diseases such as chronic rhinosinusitis with nasal polyps and asthma showed increased nasal Staphylococcus aureus (S. aureus) colonization. Serine protease like protein D (SplD) and other closely related proteases secreted by S. aureus have recently been identified as inducers of allergic asthma in humans and mice but their mechanism of action is largely unknown. OBJECTIVE: We investigated the role of recombinant SplD in driving Th2-biased responses and IgE formation in a murine model of allergic asthma...
May 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28514691/mast-cells-are-crucial-for-induction-of-group-2-innate-lymphoid-cells-and-clearance-of-helminth-infections
#16
Chikako Shimokawa, Takashi Kanaya, Masami Hachisuka, Kenji Ishiwata, Hajime Hisaeda, Yosuke Kurashima, Hiroshi Kiyono, Tomohiro Yoshimoto, Tsuneyasu Kaisho, Hiroshi Ohno
Mast cells are important for eradication of intestinal nematodes; however, their precise mechanisms of action have remained elusive, especially in the early phase of infection. We found that Spi-B-deficient mice had increased numbers of mast cells and rapidly expelled the Heligmosomoides polygyrus (Hp) nematode. This was accompanied by induction of interleukin-13 (IL-13)-producing group 2 innate lymphoid cells (ILC2) and goblet cell hyperplasia. Immediately after Hp infection, mast cells were rapidly activated to produce IL-33 in response to ATP released from apoptotic intestinal epithelial cells...
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28514688/the-e-id-protein-axis-specifies-adaptive-lymphoid-cell-identity-and-suppresses-thymic-innate-lymphoid-cell-development
#17
Masaki Miyazaki, Kazuko Miyazaki, Kenian Chen, Yi Jin, Jacob Turner, Amanda J Moore, Rintaro Saito, Kenichi Yoshida, Seishi Ogawa, Hans-Reimer Rodewald, Yin C Lin, Hiroshi Kawamoto, Cornelis Murre
Innate and adaptive lymphoid development is orchestrated by the activities of E proteins and their antagonist Id proteins, but how these factors regulate early T cell progenitor (ETP) and innate lymphoid cell (ILC) development remains unclear. Using multiple genetic strategies, we demonstrated that E proteins E2A and HEB acted in synergy in the thymus to establish T cell identity and to suppress the aberrant development of ILCs, including ILC2s and lymphoid-tissue-inducer-like cells. E2A and HEB orchestrated T cell fate and suppressed the ILC transcription signature by activating the expression of genes associated with Notch receptors, T cell receptor (TCR) assembly, and TCR-mediated signaling...
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28514681/only-two-can-tango-mast-cells-displace-epithelial-cells-to-dance-with-ilc2s
#18
Tiffany Bouchery, Nicola L Harris
Mast cells have been implicated in protective immunity to helminth infection, but the precise mechanism remains unclear. In this issue of Immunity, Shimokawa et al., 2017 report that mast cells are a bridge linking dying epithelial cells with effector type 2 innate lymphoid cells.
May 16, 2017: Immunity
https://www.readbyqxmd.com/read/28513592/ifn-%C3%AE-increases-susceptibility-to-influenza-a-infection-through-suppression-of-group-ii-innate-lymphoid-cells
#19
D Califano, Y Furuya, S Roberts, D Avram, A N J McKenzie, D W Metzger
Increased levels of interferon-γ (IFN-γ) are routinely observed in the respiratory tract following influenza virus infection, yet its potential role remains unclear. We now demonstrate that influenza-induced IFN-γ restricts protective innate lymphoid cell group II (ILC2) function in the lung following challenge with the pandemic H1N1 A/CA/04/2009 (CA04) influenza virus. Specifically, IFN-γ deficiency resulted in enhanced ILC2 activity, characterized by increased production of interleukin (IL)-5 and amphiregulin, and improved tissue integrity, yet no change in ILC2 numbers, viral load or clearance...
May 17, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28502824/human-group-2-innate-lymphoid-cells-do-not-express-the-il-5-receptor
#20
Adam K A Wright, Cathryn Weston, Batika M J Rana, Christopher E Brightling, David J Cousins
Group 2 innate lymphoid cells (ILC2s) are upstream regulators of IL-5-dependent eosinophil function in asthma. We've shown that ILC2s do not express the IL-5R and thus IL-5R-dependent therapeutic interventions (e.g. Benralizumab) are unlikely to be mediated directly on ILC2s.
May 10, 2017: Journal of Allergy and Clinical Immunology
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