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https://www.readbyqxmd.com/read/28224332/association-of-single-nucleotide-polymorphisms-of-il23r-and-il17-with-necrotizing-enterocolitis-in-premature-infants
#1
Jiayi Tian, Yanjun Liu, Yanfang Jiang, Haohan Zhou, Tong Zhu, Xiaoqi Zhao, Liping Peng, Chaoying Yan
Necrotizing enterocolitis (NEC) is a severe gastrointestinal inflammatory disease in neonates, particularly in preterm infants. The interleukin (IL) 23/IL17 axis has been shown to play an important role in the gastrointestinal inflammation. However, the association of gene polymorphisms in the IL23/IL17 axis and the development of NEC remains unknown. In this study, we aimed to explore a possible genetic role of IL23R and IL17 in the development of NEC. We identified single nucleotide polymorphisms (SNPs) in IL23R (rs10889677), IL17A (rs2275913), and IL17F (rs763780) by polymerase chain reaction and Sanger sequencing...
February 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28219892/an-infectious-disease-associated-il12b-polymorphism-regulates-il-12-23-p40-transcription-involving-poly-adp-ribose-polymerase-1
#2
Quanju Zhao, Qinglin Du, Fang Wei, Jianping Xie, Xiaojing Ma
IL-12 and IL-23 are important host defense factors produced by APCs against certain intracellular and extracellular pathogens. Their dysregulation has also been implicated in several autoimmune diseases. The nucleotide polymorphism in the promoter region of Il12b (rs41292470 consisting of the long or short allele) encoding the shared subunit of IL-12 and IL-23, p40, has been reported to associate with susceptibility to infectious diseases and autoimmune disorders. How these genetic variants impact Il12b expression at the molecular level was unclear...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28216598/clinical-signs-staphylococcus-and-atopic-eczema-related-seromarkers
#3
Kam Lun Hon, Kathy Yin Ching Tsang, Jeng Sum C Kung, Ting Fan Leung, Christopher W K Lam, Chun Kwok Wong
: Childhood eczema or atopic dermatitis (AD) is a distressing disease associated with pruritus, sleep disturbance, impaired quality of life and Staphylococcus aureus isolation. The pathophysiology of AD is complex and various seromarkers of immunity are involved. We investigated if anti-staphylococcal enterotoxin IgE (anti-SE), selected seromarkers of T regulatory (Treg), T helper (Th) and antigen-presenting cells (APC) are associated with clinical signs of disease severity and quality of life...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28211348/psoriatic-erythroderma-caused-by-terbinafine-a-possible-pathogenetic-role-for-il-23
#4
T Oda, Y Sawada, T Yamaguchi, S Ohmori, D Omoto, S Haruyama, M Yoshioka, E Okada, M Nakamura
No abstract text is available yet for this article.
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28205564/elevated-serum-interferon-%C3%AE-induced-protein-10-kda-is-associated-with-tafro-syndrome
#5
Noriko Iwaki, Yuka Gion, Eisei Kondo, Mitsuhiro Kawano, Taro Masunari, Hiroshi Moro, Koji Nikkuni, Kazue Takai, Masao Hagihara, Yuko Hashimoto, Kenji Yokota, Masataka Okamoto, Shinji Nakao, Tadashi Yoshino, Yasuharu Sato
Multicentric Castleman disease (MCD) is a heterogeneous lymphoproliferative disorder. It is characterized by inflammatory symptoms, and interleukin (IL)-6 contributes to the disease pathogenesis. Human herpesvirus 8 (HHV-8) often drives hypercytokinemia in MCD, although the etiology of HHV-8-negative MCD is idiopathic (iMCD). A distinct subtype of iMCD that shares a constellation of clinical features including thrombocytopenia (T), anasarca (A), fever (F), reticulin fibrosis (R), and organomegaly (O) has been reported as TAFRO-iMCD, however the differences in cytokine profiles between TAFRO-iMCD and iMCD have not been established...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202908/silencing-c-rel-in-macrophages-dampens-th1-and-th17-immune-responses-and-alleviates-experimental-autoimmune-encephalomyelitis-in-mice
#6
Hongling Zhang, Jiacheng Bi, Huqiang Yi, Tingting Fan, Qingguo Ruan, Lintao Cai, Youhai H Chen, Xiaochun Wan
Autoimmune Th1 and Th17 responses are critical for the development of central nervous system (CNS) pathology in experimental autoimmune encephalomyelitis (EAE), an animal model for human multiple sclerosis. Although macrophages play important roles in the development of Th1 and Th17 responses, whether modulating macrophage gene transcription can diminish Th1- and Th17 cell-induced CNS pathology is unclear. In this study, we successfully silenced the expression of the transcription factor c-Rel in macrophages of mice with EAE (including those infiltrating the CNS) using chemically modified c-Rel-specific siRNAs delivered by nanoparticles...
February 16, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28198408/therapeutic-effects-of-human-adipose-tissue-derived-stem-cell-hadsc-transplantation-on-experimental-autoimmune-encephalomyelitis-eae-mice
#7
Jia Li, Ying Chen, Zhibo Chen, Yuanyuan Huang, Dehao Yang, Zhongqian Su, Yiyun Weng, Xiang Li, Xu Zhang
This study is to investigate the therapeutic effects of human adipose tissue-derived stem cell (hADSC) transplantation on experimental autoimmune encephalomyelitis (EAE) in mice. EAE mouse model was established by MOG35-55 immunization. Body weight and neurological function were assessed. H&E and LFB staining was performed to evaluate histopathological changes. Flow cytometry was used to detect Th17 and Treg cells. ELISA and real-time PCR were performed to determine transcription factor and pro-inflammatory cytokine levels...
February 15, 2017: Scientific Reports
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
#8
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/28193005/mapping-the-energetic-epitope-of-an-antibody-interleukin-23-interaction-with-hydrogen-deuterium-exchange-fast-photochemical-oxidation-of-proteins-mass-spectrometry-and-alanine-shave-mutagenesis
#9
Jing Li, Hui Wei, Stanley R Krystek, Derek Bond, Ty M Brender, Daniel Cohen, Jena Feiner, Nels Hamacher, Johanna Harshman, Richard Y-C Huang, Susan H Julien, Zheng Lin, Kristina Moore, Luciano Mueller, Claire Noriega, Preeti Sejwal, Paul Sheppard, Brenda Stevens, Guodong Chen, Adrienne A Tymiak, Michael L Gross, Lumelle A Schneeweis
Epitope mapping the specific residues of an antibody/antigen interaction can be used to support mechanistic interpretation, antibody optimization, and epitope novelty assessment. Thus, there is a strong need for mapping methods, particularly integrative ones. Here, we report the identification of an energetic epitope by determining the interfacial hot-spot that dominates the binding affinity for an anti-interleukin-23 (anti-IL-23) antibody by using the complementary approaches of hydrogen/deuterium exchange mass spectrometry (HDX-MS), fast photochemical oxidation of proteins (FPOP), alanine shave mutagenesis, and binding analytics...
February 9, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28191009/defective-il-23-il-17-axis-protects-p47phox-mice-from-colon-cancer
#10
Cornelia Richter, Martina Herrero San Juan, Benno Weigmann, Dominik Bergis, Katrin Dauber, Michael H Muders, Gustavo B Baretton, Josef Martin Pfeilschifter, Halvard Bonig, Sebastian Brenner, Heinfried H Radeke
In the colon, a sophisticated balance between immune reaction and tolerance is absolutely required. Dysfunction may lead to pathologic phenotypes ranging from chronic inflammatory processes to cancer development. Two prominent modulators of colon inflammation are represented by the closely related cytokines interleukin (IL)-12 and IL-23, which initiate adaptive Th1 and Th17 immune responses, respectively. In this study, we investigated the impact of the NADPH oxidase protein p47phox, which negatively regulates IL-12 in dendritic cells, on colon cancer development in a colitis-associated colon cancer model...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28190384/lactic-acid-bacteria-with-concomitant-il-17-il-23-and-tnf%C3%AE-binding-ability-for-the-treatment-of-inflammatory-bowel-disease
#11
Staša Kosler, Borut Štrukelj, Aleš Berlec
BACKGROUND: Neutralization of proinflammatory cytokines is an established strategy in the treatment of inflammatory bowel disease (IBD). Systemic anti-TNFα antibodies have been used in the clinics for several years, while anti-IL-17/IL-23 antibodies have been less successful so far. We report the development of safe lactic acid bacterium Lb. salivarius with the ability to simultaneously bind IL-17A, IL-23 and TNFα that could be administered orally for the treatment of IBD. METHODS: Three different cytokine-binding non-Ig scaffolds (anti-IL-17A fynomer, anti-IL-23-binding adnectin and anti-TNFα-binding affibody) were cloned and expressed in L...
10, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28189042/activity-of-inflammatory-bowel-disease-influences-the-expression-of-cytokines-in-gingival-tissue
#12
C M Figueredo, A P Martins, R Lira-Junior, J B Menegat, A T Carvalho, R G Fischer, A Gustafsson
This study assessed the cytokine expression in gingival and intestinal tissues from periodontitis patients with inflammatory bowel disease (IBD) and evaluated if IBD activity is a covariate to the amount of gingival cytokines. Paired gingival and intestinal tissues were collected from 21 patients and homogenised using a cell disruptor. Cytokine expression (IL-1β, IL-4, IL-6, IL-10, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IL-17A, IL-17F, IFN-γ, sCD40L, and TNF-α) was evaluated using bead-based multiplex technology...
February 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28187456/inhibition-and-deficiency-of-the-immunoproteasome-subunit-lmp7-suppress-the-development-and-progression-of-colorectal-carcinoma-in-mice
#13
Julia Koerner, Thomas Brunner, Marcus Groettrup
New treatment options and drug targets for colorectal carcinoma are a pressing medical need. Inflammation and pro-inflammatory cytokines produced by Th1 and Th17 cells like IL-6, TNF, IL-17 and IL-23 promote the development and growth of colorectal cancer (CRC). The immunoproteasome is a proteasome subtype highly expressed in immune cells but also in the intestine. Since the immunoproteasome promotes Th1 and Th17 differentiation and pro-inflammatory cytokine production, we investigated here whether deficiency or inhibition of the immunoproteasome subunit LMP7 would interfere with CRC development and exacerbation in preventive and therapeutic mouse models...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28179433/il-36-signaling-facilitates-activation-of-the-nlrp3-inflammasome-and-il-23-il-17-axis-in-renal-inflammation-and-fibrosis
#14
Hsi-Hua Chi, Kuo-Feng Hua, Yu-Chuan Lin, Ching-Liang Chu, Chih-Yu Hsieh, Yu-Juei Hsu, Shuk-Man Ka, Yu-Ling Tsai, Feng-Cheng Liu, Ann Chen
IL-36 cytokines are proinflammatory and have an important role in innate and adaptive immunity, but the role of IL-36 signaling in renal tubulointerstitial lesions (TILs), a major prognostic feature of renal inflammation and fibrosis, remains undetermined. In this study, increased IL-36α expression detected in renal biopsy specimens and urine samples from patients with renal TILs correlated with renal function impairment. We confirmed the increased expression of IL-36α in the renal tubular epithelial cells of a mouse model of unilateral ureteral obstruction (UUO) and related cell models using mechanically induced pressure, oxidative stress, or high mobility group box 1...
February 8, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28174956/p001-the-biomarker-profile-of-ptg-200-an-oral-peptide-antagonist-of-il-23-receptor-tracks-with-efficacy-in-a-preclinical-model-of-ibd
#15
X Cheng, R Taranath, L Mattheakis, A Bhandari, D Liu
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28168735/does-imiquimod-pretreatment-optimize-308-nm-excimer-laser-uvb-therapy-in-psoriasis-patients
#16
Joselin D Tacastacas, Patricia Oyetakin-White, David C Soler, Andrew Young, Sarah Groft, Kord Honda, Kevin D Cooper, Thomas S McCormick
Psoriasis continues to be a debilitating skin disease affecting 1-3% of the United States population. Although the effectiveness of several current biologic therapies have described this pathology as a IL-23, TNF-α and Th17-mediated disease, less invasive approaches are still in use and in need of refinement. One of these is the usage of narrow band-UVB (NB-UVB) therapy to deplete specifically intra-epidermal CD3(+) , CD4(+) and CD8(+) cells to clear psoriatic plaques. In order to improve NB-UVB therapy, we sought to determine whether skin pre-treatment with the TLR7 agonist imiquimod (IMQ) would help increase the efficiency of the former at resolving psoriatic plaques...
February 7, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28167628/exposure-to-a-social-stressor-induces-translocation-of-commensal-lactobacilli-to-the-spleen-and-priming-of-the-innate-immune-system
#17
William P Lafuse, Rachel Gearinger, Sydney Fisher, Connor Nealer, Amy R Mackos, Michael T Bailey
Studies have shown that exposure to psychological stressors leads to inflammation throughout the body. This has been widely studied using social disruption (SDR), a social stressor that involves repeated social defeat in subordinate mice. Exposure to SDR increases serum cytokine levels, results in accumulation of spleen CD11b(+) myeloid cells, and primes macrophages for increased cytokine and microbicidal activity. Our previous studies showed that intestinal microbes are necessary for SDR-enhancement of innate immunity...
February 6, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28165883/the-role-of-il-23-in-the-treatment-of-psoriasis
#18
Lluís Puig
The IL-23/IL-17 axis is currently considered to be crucial in the pathogenesis of psoriasis. Human IL-23 is primarily produced by antigen-presenting cells and induces and maintains differentiation of Th17 cells and Th22 cells, a primary cellular source of proinflammatory cytokines such as IL-17 and IL-22, which mediate the epidermal hyperplasia, keratinocyte immune activation and tissue inflammation inherent in psoriasis. Agents that target the p40 subunit common to both IL-12 and IL-23 have shown robust clinical activity, but selectivity for IL-23p19 could offer advantages in efficacy and safety with respect to anti-p40 blockade...
February 6, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28154569/regulation-of-nk-cell-activation-and-effector-functions-by-the-il-12-family-of-cytokines-the-case-of-il-27
#19
REVIEW
Norberto Walter Zwirner, Andrea Ziblat
Natural killer (NK) cells are characterized by their ability to detect and induce apoptosis of susceptible target cells and by secretion of immunoregulatory cytokines such as IFN-γ. Activation of these effector functions is triggered upon recognition of tumor and pathogen (mostly virus)-infected cells and because of a bidirectional cross talk that NK cells establish with other cells of myeloid origin such as dendritic cells (DC) and macrophages. A common characteristic of these myeloid cells is their ability to secrete different members of the IL-12 family of cytokines such as IL-12, IL-23, and IL-27 and cytokines such as IL-15 and IL-18...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28150333/varicella-zoster-virus-meningitis-under-ustekinumab-because-of-plaque-psoriasis
#20
Claudia Stöllberger, Josef Finsterer
Ustekinumab, a monoclonal antibody that binds to the shared p40 subunit of interleukin (IL)-12 and IL-23, is approved in the USA and Europe for moderate to severe plaque psoriasis. There are concerns that biologic treatments like ustekinumab may lead to an increased rate of infections. We report a 77-year-old woman who developed varicella zoster virus meningitis 8 weeks after initiation of ustekinumab therapy because of plaque psoriasis. She presented clinically with sudden onset of fatigue, vertigo, nausea and epileptic seizures...
February 2, 2017: Journal of Dermatology
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