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https://www.readbyqxmd.com/read/29781547/altered-expression-of-matrix-remodeling-associated-7-mxra7-in-psoriatic-epidermis-evidence-for-a-protective-role-in-the-psoriasis-imiquimod-mouse-model
#1
Jinling Ning, Ying Shen, Ting Wang, Mengru Wang, Wei Liu, Yonghu Sun, Furen Zhang, Lingling Chen, Yiqiang Wang
Preliminary datamining performed with Gene Expression Omnibus datasets implied that psoriasis may involve the matrix remodeling associated 7 (MXRA7), a gene with little function information yet. To test that hypothesis, studies were performed in human samples and murine models. Immunohistochemistry in normal human skin showed that MXRA7 proteins were present across the full epidermal layer, with highest expression level detected in the basal layer. In psoriatic samples, MXRA7 proteins were absent in the basal stem cells layer while suprabasal keratinocytes stained at a higher level than in normal tissues...
May 21, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29770133/peripheral-blood-stem-cell-mobilization-in-healthy-donors-by-granulocyte-colony-stimulating-factor-causes-preferential-mobilization-of-lymphocyte-subsets
#2
Guro Kristin Melve, Elisabeth Ersvaer, Geir Egil Eide, Einar K Kristoffersen, Øystein Bruserud
Background: Allogeneic hematopoietic stem cell transplantation is associated with a high risk of immune-mediated post-transplant complications. Graft depletion of immunocompetent cell subsets is regarded as a possible strategy to reduce this risk without reducing antileukemic immune reactivity. Study design and methods: We investigated the effect of hematopoietic stem cell mobilization with granulocyte colony-stimulating factor (G-CSF) on peripheral blood and stem cell graft levels of various T, B, and NK cell subsets in healthy donors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29764837/il22-promotes-kras-mutant-lung-cancer-by-induction-of-a-pro-tumor-immune-response-and-protection-of-stemness-properties
#3
Nasim Khosravi, Mauricio S Caetano, Amber M Cumpian, Nese Unver, Cynthia De la Garza Ramos, Oscar Noble, Soudabeh Daliri, Belinda J Hernandez, Berenice A Gutierrez, Scott E Evans, Samir Hanash, Andrei M Alekseev, Yi Yang, Seon Hee Chang, Roza Nurieva, Humam Kadara, Jichao Chen, Edwin J Ostrin, Seyed Javad Moghaddam
Somatic KRAS mutations are the most common oncogenic variants in lung cancer and are associated with poor prognosis. Using a Kras-induced lung cancer mouse model, CC-LR, we previously showed a role for inflammation in lung tumorigenesis through activation of the NF-kB pathway, along with induction of interleukin 6 (IL6) and an IL17-producing CD4+ T-helper cell response. IL22 is an effector molecule secreted by CD4+ and γδ T cells that we previously found to be expressed in CC-LR mice. IL22 mostly signals through the STAT3 pathway and is thought to act exclusively on non-hematopoietic cells with basal IL22 receptor (IL22R) expression on epithelial cells...
May 15, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29724254/radical-containing-combustion-derived-particulate-matter-enhance-pulmonary-th17-inflammation-via-the-aryl-hydrocarbon-receptor
#4
Sridhar Jaligama, Vivek S Patel, Pingli Wang, Asmaa Sallam, Jeffrey Harding, Matthew Kelley, Skylar R Mancuso, Tammy R Dugas, Stephania A Cormier
BACKGROUND: Pollutant particles containing environmentally persistent free radicals (EPFRs) are formed during many combustion processes (e.g. thermal remediation of hazardous wastes, diesel/gasoline combustion, wood smoke, cigarette smoke, etc.). Our previous studies demonstrated that acute exposure to EPFRs results in dendritic cell maturation and Th17-biased pulmonary immune responses. Further, in a mouse model of asthma, these responses were enhanced suggesting exposure to EPFRs as a risk factor for the development and/or exacerbation of asthma...
May 3, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29623515/dna-methylation-based-subclassification-of-psoriasis-in-the-chinese-han-population
#5
Fusheng Zhou, Changbing Shen, Yi-Hsiang Hsu, Jing Gao, Jinfa Dou, Randy Ko, Xiaodong Zheng, Liangdan Sun, Yong Cui, Xuejun Zhang
Psoriasis (Ps) is an inflammatory skin disease caused by genetic and environmental factors. Previous studies on DNA methylation (DNAm) found genetic markers that are closely associated with Ps, and evidence has shown that DNAm mediates genetic risk in Ps. In this study, Consensus Clustering was used to analyze DNAm data, and 114 Ps patients were divided into three subclassifications. Investigation of the clinical characteristics and copy number variations (CNVs) of DEFB4, IL22, and LCE3C in the three subclassifications revealed no significant differences in gender ratio and in Ps area and severity index (PASI) score...
April 5, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29621481/in-inflamed-intestinal-tissues-and-epithelial-cells-interleukin-22-signaling-increases-expression-of-h19-long-noncoding-rna-which-promotes-mucosal-regeneration
#6
Hua Geng, Heng-Fu Bu, Fangyi Liu, Longtao Wu, Karl Pfeifer, Pauline M Chou, Xiao Wang, Jiaren Sun, Lu Lu, Ashutosh Pandey, Marisa S Bartolomei, Isabelle G De Plaen, Peng Wang, Jindan Yu, Jiaming Qian, Xiao-Di Tan
BACKGROUND & AIMS: Inflammation affects regeneration of the intestinal epithelia; long non-coding RNAs (lncRNAs) regulate cell functions such as proliferation, differentiation, and migration. We investigated the mechanisms by which the lncRNA H19, imprinted maternally expressed transcript (H19) regulates regeneration of intestinal epithelium using cell cultures and mouse models of inflammation. METHODS: We performed RNA-seq transcriptome analyses of intestinal tissues from mice with LPS-induced sepsis to identify lncRNAs associated with inflammation; findings were confirmed by quantitative real-time PCR and in situ hybridization analyses of intestinal tissues from mice with sepsis or dextran sulfate sodium (DSS)-induced mucosal wound healing and patients with ulcerative colitis, compared to healthy individuals (controls)...
April 2, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29588546/the-ap-1-batf-and-batf3-module-is-essential-for-growth-survival-and-th17-ilc3-skewing-of-anaplastic-large-cell-lymphoma
#7
Nikolai Schleussner, Olaf Merkel, Mariantonia Costanza, Huan-Chang Liang, Franziska Hummel, Chiara Romagnani, Pawel Durek, Ioannis Anagnostopoulos, Michael Hummel, Korinna Jöhrens, Antonia Niedobitek, Patrick R Griffin, Roberto Piva, Henrike L Sczakiel, Wilhelm Woessmann, Christine Damm-Welk, Christian Hinze, Dagmar Stoiber, Bernd Gillissen, Suzanne D Turner, Eva Kaergel, Linda von Hoff, Michael Grau, Georg Lenz, Bernd Dörken, Claus Scheidereit, Lukas Kenner, Martin Janz, Stephan Mathas
Transcription factor AP-1 is constitutively activated and IRF4 drives growth and survival in ALK+ and ALK- anaplastic large cell lymphoma (ALCL). Here we demonstrate high-level BATF and BATF3 expression in ALCL. Both BATFs bind classical AP-1 motifs and interact with in ALCL deregulated AP-1 factors. Together with IRF4, they co-occupy AP-1-IRF composite elements, differentiating ALCL from non-ALCL. Gene-specific inactivation of BATFs, or global AP-1 inhibition results in ALCL growth retardation and/or cell death in vitro and in vivo...
March 28, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29518260/inflammatory-intrathecal-profiles-and-cortical-damage-in-multiple-sclerosis
#8
Roberta Magliozzi, Owain W Howell, Richard Nicholas, Carolina Cruciani, Marco Castellaro, Chiara Romualdi, Stefania Rossi, Marco Pitteri, Maria Donata Benedetti, Alberto Gajofatto, Francesca B Pizzini, Stefania Montemezzi, Sarah Rasia, Ruggero Capra, Alessandra Bertoldo, Francesco Facchiano, Salvatore Monaco, Richard Reynolds, Massimiliano Calabrese
OBJECTIVE: Gray matter (GM) damage and meningeal inflammation have been associated with early disease onset and a more aggressive disease course in multiple sclerosis (MS), but can these changes be identified in the patient early in the disease course? METHODS: To identify possible biomarkers linking meningeal inflammation, GM damage, and disease severity, gene and protein expression were analyzed in meninges and cerebrospinal fluid (CSF) from 27 postmortem secondary progressive MS and 14 control cases...
April 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29500077/protective-role-of-6-formylindolo-3-2-b-carbazole-ficz-an-endogenous-ligand-for-arylhydrocarbon-receptor-in-chronic-mite-induced-dermatitis
#9
Mari Kiyomatsu-Oda, Hiroshi Uchi, Saori Morino-Koga, Masutaka Furue
BACKGROUND: Chronic eczema such as atopic dermatitis imposes significant socio-econo-psychologic burdens on the affected individuals. In addition to conventional topical treatments, phototherapy is recommended for patients with extensive lesions. Although immunosuppression is believed to explain its primary effectiveness, the underlying mechanisms of phototherapy remain unsolved. Ultraviolet irradiation generates various tryptophan photoproducts including 6-formylindolo[3,2-b]-carbazole (FICZ)...
June 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29315356/interleukin-22-prevents-lipopolysaccharide-induced-preterm-labor-in-mice
#10
Svetlana Dambaeva, Sylvia Schneiderman, Mukesh K Jaiswal, Varkha Agrawal, Gajendra K Katara, Alice Gilman-Sachs, Emmet Hirsch, Kenneth D Beaman
Preterm birth is widespread and causes 35% of all neonatal deaths. Infants who survive face potential long-term complications. A major contributing factor of preterm birth is infection. We investigated the role of interleukin 22 (IL22) as a potential clinically relevant cytokine during gestational infection. IL22 is an effector molecule secreted by immune cells. While the expression of IL22 was reported in normal nonpregnant endometrium and early pregnancy decidua, little is known about uterine IL22 expression during mid or late gestational stages of pregnancy...
March 1, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29294541/-prediction-of-occupational-allergic-contact-dermatitis-induced-by-formaldehyde-by-il17-il22-secretion-cell-rest-combined-with-patch-test
#11
W H Mai, X W Liu, G X Su, Z P Wen
Objective: To investigate the possible role of IL17-and IL22-secreting cells combined with patch test for the prediction of formaldehyde-induced occupational allergic contact dermatitis(OACD). Methods: From October 2014 to October 2016, totally 131 formaldehyde-exposed workers(49 cases with inflammatory skin lesions,82 ones without inflammatory skin lesions)and 63 non-exposed health controls were recruited. Patch-test was performed in 49 cases of formaldehyde-exposed workers with inflammatory skin lesions. Circulating IL17+and IL22+Tcell subsets were assessed by flow cytometry(FCM)...
October 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29273450/helicobacter-pylori-depletes-cholesterol-in-gastric-glands-to-prevent-interferon-gamma-signaling-and-escape-the-inflammatory-response
#12
Pau Morey, Lennart Pfannkuch, Ervinna Pang, Francesco Boccellato, Michael Sigal, Aki Imai-Matsushima, Victoria Dyer, Manuel Koch, Hans-Joachim Mollenkopf, Philipp Schlaermann, Thomas F Meyer
BACKGROUND & AIMS: Despite inducing an inflammatory response, Helicobacter pylori can persist in the gastric mucosa for decades. H pylori expression of cholesterol-α-glucosyltransferase (encoded by cgt) is required for gastric colonization and T-cell activation. We investigated how cgt affects gastric epithelial cells and the host immune response. METHODS: MKN45 gastric epithelial cells, AGS cells, and human primary gastric epithelial cells (obtained from patients undergoing gastrectomy or sleeve resection or gastric antral organoids) were incubated with interferon gamma (IFNG) or IFNB and exposed to H pylori, including cagPAI and cgt mutant strains...
December 19, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29248460/%C3%AE-%C3%AE-t-cells-contribute-to-injury-in-the-developing-brain
#13
Anna-Maj Albertsson, Xiaoli Zhang, Regina Vontell, Dan Bi, Roderick T Bronson, Veena Supramaniam, Ana A Baburamani, Sha Hua, Arshed Nazmi, Susanna Cardell, Changlian Zhu, Harvey Cantor, Carina Mallard, Henrik Hagberg, Jianmei W Leavenworth, Xiaoyang Wang
Brain injury in premature infants, especially periventricular leukomalacia, is an important cause of neurologic disabilities. Inflammation contributes to perinatal brain injury development, but the essential mediators that lead to early-life brain injury remain largely unknown. Neonates have reduced capacity for mounting conventional αβT-cell responses. However, γδT cells are already functionally competent during early development and are important in early-life immunity. We investigated the potential contribution of γδT cells to preterm brain injury using postmortem brains from human preterm infants with periventricular leukomalacia and two animal models of preterm brain injury-the hypoxic-ischemic mouse model and a fetal sheep asphyxia model...
March 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29109123/a-protective-function-of-il-22bp-in-ischemia-reperfusion-and-acetaminophen-induced-liver-injury
#14
Dörte Kleinschmidt, Anastasios D Giannou, Heather M McGee, Jan Kempski, Babett Steglich, Francis Jessica Huber, Thomas Michael Ernst, Ahmad Mustafa Shiri, Claudia Wegscheid, Elena Tasika, Peter Hübener, Philipp Huber, Tanja Bedke, Niklas Steffens, Theodora Agalioti, Tobias Fuchs, Jill Noll, Hannelore Lotter, Gisa Tiegs, Ansgar W Lohse, Jonathan H Axelrod, Eithan Galun, Richard A Flavell, Nicola Gagliani, Samuel Huber
Acute liver injury can be secondary to a variety of causes, including infections, intoxication, and ischemia. All of these insults induce hepatocyte death and subsequent inflammation, which can make acute liver injury a life-threatening event. IL-22 is a dual natured cytokine which has context-dependent protective and pathogenic properties during tissue damage. Accordingly, IL-22 was shown to promote liver regeneration upon acute liver damage. However, other studies suggest pathogenic properties of IL-22 during chronic liver injury...
December 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29102620/levels-of-cytokines-in-serum-associate-with-development-of-hepatocellular-carcinoma-in-patients-with-hcv-infection-treated-with-direct-acting-antivirals
#15
Jose D Debes, Marjolein van Tilborg, Zwier M A Groothuismink, Bettina E Hansen, Julian Schulze Zur Wiesch, Johann von Felden, Robert J de Knegt, Andre Boonstra
Concern has arisen about the development of hepatocellular carcinoma (HCC) in patients with hepatitis C virus (HCV) infection treated with direct-acting antivirals (DAAs). To identify patients at risk for HCC, we evaluated serum levels of immune mediators before, during, and after DAA treatment of HCV infection. Our study included 13 patients who developed HCC within 18 months after treatment (3 with HCC recurrence and 10 with new HCC) and 10 patients who did not develop HCC (controls), within at least 24 months of treatment (median, 26 months)...
February 2018: Gastroenterology
https://www.readbyqxmd.com/read/29081776/innate-lymphoid-cells-in-intestinal-inflammation
#16
REVIEW
Alessandra Geremia, Carolina V Arancibia-Cárcamo
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the intestine that encompasses Crohn's disease (CD) and ulcerative colitis. The cause of IBD is unknown, but the evidence suggests that an aberrant immune response toward the commensal bacterial flora is responsible for disease in genetically susceptible individuals. Results from animal models of colitis and human studies indicate a role for innate lymphoid cells (ILC) in the pathogenesis of chronic intestinal inflammation in IBD. ILC are a population of lymphocytes that are enriched at mucosal sites, where they play a protective role against pathogens including extracellular bacteria, helminthes, and viruses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29054964/gene-expression-profiling-of-the-notch-ahr-il22-axis-at-homeostasis-and-in-response-to-tissue-injury
#17
Marc Weidenbusch, Severin Rodler, Shangqing Song, Simone Romoli, Julian A Marschner, Franziska Kraft, Alexander Holderied, Santosh Kumar, Shrikant R Mulay, Mohsen Honarpisheh, Satish Kumar Devarapu, Maciej Lech, Hans-Joachim Anders
Notch and interleukin-22 (IL-22) signaling are known to regulate tissue homeostasis and respond to injury in humans and mice, and the induction of endogenous aryl hydrocarbon receptor (Ahr) ligands through Notch links the two pathways in a hierarchical fashion. However in adults, the species-, organ- and injury-specific gene expression of the Notch-AhR-IL22 axis components is unknown. We therefore performed gene expression profiling of DLL1, DLL3, DLL4, DLK1, DLK2, JAG1, JAG2, Notch1, Notch2, Notch3, Notch4, ADAM17/TNF-α ADAM metalloprotease converting enzyme (TACE), PSEN1, basigin (BSG)/CD147, RBP-J, HES1, HES5, HEY1, HEYL, AHR, ARNT, ARNT2, CYP1A1, CYP24A1, IL-22, IL22RA1, IL22RA2, IL10RB, and STAT3 under homeostatic conditions in ten mature murine and human organs...
December 22, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29037907/interleukin-22-in-human-inflammatory-diseases-and-viral-infections
#18
REVIEW
Arezoo Gowhari Shabgah, Jamshid Gholizadeh Navashenaq, Omid Gohari Shabgah, Hamed Mohammadi, Amirhossein Sahebkar
Interleukin-22 (IL22) is one of the members of IL10 family. Elevated levels of this cytokine can be seen in diseases caused by T lymphocytes, such as Psoriasis, Rheumatoid arthritis, interstitial lung diseases. IL22 is produced by different cells in both innate and acquired immunities. Different types of T cells are able to produce IL22, but the major IL22-producing T-cell is the TCD4. TH22 cell is a new line of TCD4 cells, which differentiated from naive T cells in the presence of TNFα and IL6; 50% of peripheral blood IL22 is produced by these cells...
December 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28966918/immunofibrogenic-gene-expression-patterns-in-tanzanian-children-with-ocular-chlamydia-trachomatis-infection-active-trachoma-and-scarring-baseline-results-of-a-4-year-longitudinal-study
#19
Athumani M Ramadhani, Tamsyn Derrick, David Macleod, Patrick Massae, Tara Mtuy, David Jeffries, Chrissy H Roberts, Robin L Bailey, David C W Mabey, Martin J Holland, Matthew J Burton
Trachoma, caused by Chlamydia trachomatis, is the world's leading infectious cause of blindness and remains a significant public health problem. Much of trachomatous disease pathology is thought to be caused indirectly by host cellular and immune responses, however the immune response during active trachoma and how this initiates progressive scarring is not clearly understood. Defining protective vs. pathogenic immune response to C. trachomatis is important for vaccine design and evaluation. This study reports the baseline results of a longitudinal cohort of Tanzanian children, who were monitored for 4 years in order to determine the immunofibrogenic and infectious correlates of progressive scarring trachoma...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28931830/circulating-mycobacterium-tuberculosis-dosr-latency-antigen-specific-polyfunctional-regulatory-il10-th17-cd4-t-cells-differentiate-latent-from-active-tuberculosis
#20
Srabanti Rakshit, Vasista Adiga, Soumya Nayak, Pravat Nalini Sahoo, Prabhat Kumar Sharma, Krista E van Meijgaarden, Anto Jesuraj Uk J, Chirag Dhar, George D Souza, Greg Finak, Stephen C De Rosa, Tom H M Ottenhoff, Annapurna Vyakarnam
The functional heterogeneity of T cell responses to diverse antigens expressed at different stages of Mycobacterium tuberculosis (Mtb) infection, in particular early secreted versus dormancy related latency antigens expressed later, that distinguish subjects with latent (LTBI), pulmonary (PTB) or extrapulmonary (EPTB) tuberculosis remains unclear. Here we show blood central memory CD4 T-cell responses specific to Mtb dormancy related (DosR) latency, but not classical immunodominant secretory antigens, to clearly differentiate LTBI from EPTB and PTB...
September 20, 2017: Scientific Reports
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