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https://www.readbyqxmd.com/read/29234969/monoclonal-antibodies-for-treatment-of-eosinophilic-esophagitis
#1
REVIEW
Mahsa Eskian, MirHojjat Khorasanizadeh, Amal H Assa'ad, Nima Rezaei
Eosinophilic esophagitis (EoE) is a chronic inflammatory disease of the esophagus affecting both children and adults, with debilitating and progressive symptoms. EoE has shown an explosive epidemiological rise in the past few decades. Many patients experience a poor level of disease control despite maximal use of available guideline-based therapies, which seriously hampers their quality of life. Diet restrictions and systemic and topical corticosteroids are the current mainstays of EoE therapy, but are associated with significant efficacy, treatment compliance, and safety issues such as oral or esophageal candidiasis, growth retardation, osteopenia, osteoporosis, glucose intolerance, and cataract formation...
December 12, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29234390/astragaloside-iv-ameliorates-airway-inflammation-in-an-established-murine-model-of-asthma-by-inhibiting-the-mtorc1-signaling-pathway
#2
Hualiang Jin, Limin Wang, Bei Li, Cui Cai, Jian Ye, Junbo Xia, Shenglin Ma
Astragaloside IV (AS-IV), a main active constituent of Astragalus membranaceus, has been confirmed to have antiasthmatic effects. However, it remained unclear whether the beneficial effects of AS-IV on asthma were attributed to the mTOR inhibition; this issue was the focus of the present work. BALB/c mice were sensitized and challenged with ovalbumin followed with 3 weeks of rest/recovery and then reexposure to ovalbumin. AS-IV was administrated during the time of rest and reexposure. The characteristic features of allergic asthma, including airway hyperreactivity, histopathology, cytokines (IL-4, IL-5, IL-13, IL-17, and INF-γ), and CD4+CD25+Foxp3+Treg cells in bronchoalveolar lavage fluid (BALF), and downstream proteins of mTORC1/2 signaling were examined...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29233007/investigation-of-hypersensitivity-potential-of-diacetyl-by-determining-cytokine-profiles
#3
A Elkama, O C Ulker, E Teker, A Karakaya, A E Karakaya
Exposure to chemicals in workplace settings leads to significant occupational diseases related to hypersensitivity reactions. In recent years, diacetyl which is used as a food additive is thought to be as an important hazard due to its sensitization potency for worker's health. Therefore, in this study, we aimed to investigate the sensitization potency of diacetyl for the purpose of its hazard evaluation. Nonradioactive ex vivo local lymph node assay: BrdU-enzyme-linked immunosorbent assay (ELISA) method with short-term and long-term exposure protocols were conducted based on animal welfare principles...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29231065/serum-interleukin-6-levels-as-an-indicator-of-aseptic-meningitis-among-children-with-enterovirus-71-induced-hand-foot-and-mouth-disease
#4
Joo Young Lee, Minji Son, Jin Han Kang, Ui Yoon Choi
OBJECTIVES: The enterovirus EV71 is a major pathogen of hand, foot, and mouth disease (HFMD) in children. Aseptic meningitis is the most common neurologic complication of EV71-induced HFMD. Lumbar puncture is a crucial procedure in the diagnosis of aseptic meningitis. It is often performed based on physicians' clinical suspicion. A diagnostic method that can aid in deciding whether this procedure should be performed is necessary. Cytokines are speculated to be associated with neurologic complications...
December 14, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/29230805/uspio-labeling-in-m1-and-m2-polarized-macrophages-an-in-vitro-study-using-a-clinical-magnetic-resonance-scanner
#5
Chiara Zini, Mary Anna Venneri, Selenia Miglietta, Damiano Caruso, Natale Porta, Andrea Isidori, Daniela Fiore, Daniele Gianfrilli, Vincenzo Petrozza, Andrea Laghi
BACKGROUND: To evaluate USPIO labeling in different macrophage populations using a clinical 3.0T MR unit with optical and electron microscopy as the gold standard. METHODS: Human monocytic cell line were differentiated into macrophages. Afterwards M0 macrophages were incubated with IL-4 and IL-13 in order to obtain M2 polarized macrophages or with IFN-gamma and LPS for classical macrophage activation (M1). These groups were incubated with USPIO MR contrast agent (P904) for 36 hours; M0, M0+P904, M1+P904 and M2+P904 were analyzed in gel phantoms with a 3...
December 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29225603/regulatory-t-cells-suppress-inflammation-and-blistering-in-pemphigoid-diseases
#6
Katja Bieber, Shijie Sun, Mareike Witte, Anika Kasprick, Foteini Beltsiou, Martina Behnen, Tamás Laskay, Franziska S Schulze, Elena Pipi, Niklas Reichhelm, René Pagel, Detlef Zillikens, Enno Schmidt, Tim Sparwasser, Kathrin Kalies, Ralf J Ludwig
Regulatory T cells (Tregs) are well known for their modulatory functions in adaptive immunity. Through regulation of T cell functions, Tregs have also been demonstrated to indirectly curb myeloid cell-driven inflammation. However, direct effects of Tregs on myeloid cell functions are insufficiently characterized, especially in the context of myeloid cell-mediated diseases, such as pemphigoid diseases (PDs). PDs are caused by autoantibodies targeting structural proteins of the skin. Autoantibody binding triggers myeloid cell activation through specific activation of Fc gamma receptors, leading to skin inflammation and subepidermal blistering...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29225189/luteolin-attenuates-airway-inflammation-by-inducing-the-transition-of-cd4-cd25-to-cd4-cd25-regulatory-t-cells
#7
Seung-Hyung Kim, Evelyn Saba, Bok-Kyu Kim, Won-Kyung Yang, Yang-Chun Park, Han Jae Shin, Chang Kyun Han, Young Cheol Lee, Man Hee Rhee
Regulatory T cells (Th2) play an important role in autoimmunity and have been shown to exert anti-inflammatory effects in allergic asthma. Mouse model of airway inflammation was used to examine the suppressive activity of luteolin-induced CD4+CD25+ regulatory T cells (Tregs) in vivo. In this study, BALB/c mice were sensitized with ovalbumin antigen (OVA) by aerosol challenge. Then, various biological processes were examined, including airway eosinophilia; mucus hypersecretion; elevation of OVA-specific IgE, expression of Th2 cytokines and chemokine levels; expression of eotaxin 2 and CCR3; and airway hyper responsiveness (AHR)...
December 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29225050/inhibition-of-the-mitochondrial-calcium-uniporter-prevents-il-13-and-allergen-mediated-airway-epithelial-apoptosis-and-loss-of-barrier-function
#8
Sara C Sebag, Olha M Koval, John D Paschke, Christopher J Winters, Alejandro P Comellas, Isabella M Grumbach
Mitochondria are increasingly recognized as key mediators of acute cellular stress responses in asthma. However, the distinct roles of regulators of mitochondrial physiology on allergic asthma phenotypes are currently unknown. The mitochondrial Ca2+ uniporter (MCU) resides in the inner mitochondrial membrane and controls mitochondrial Ca2+ uptake into the mitochondrial matrix. To understand the function of MCU in models of allergic asthma, in vitro and in vivo studies were performed using models of functional deficiency or knockout of MCU...
December 7, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29222492/interaction-of-rna-binding-protein-hur-and-mir-466i-regulates-gm-csf-expression
#9
Jing Chen, William Adamiak, Ganlei Huang, Ulus Atasoy, Abdolmohamad Rostami, Shiguang Yu
Granulocyte-macrophage colony-stimulating factor (GM-CSF) produced by T helper 17 (Th17) cells plays an essential role in autoimmune diseases. Transcriptional regulation of Th17 cell differentiation has been extensively studied, but post-transcriptional regulation of Th17 cell differentiation has remained less well characterized. The RNA-binding protein HuR functions to promote the stability of target mRNAs via binding the AU-rich elements of the 3' untranslated region (3'UTR) of numerous pro-inflammatory cytokines including IL-4, IL-13, IL-17 and TNF-α...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29217133/pge2-suppresses-human-group-2-innate-lymphoid-cell-function
#10
Jovana Maric, Avinash Ravindran, Luca Mazzurana, Åsa K Björklund, Aline Van Acker, Anna Rao, Danielle Friberg, Sven-Erik Dahlén, Akos Heinemann, Viktoria Konya, Jenny Mjösberg
BACKGROUND: Group 2 innate lymphoid cells (ILC2) are involved in the initial phase of type 2 inflammation and can amplify allergic immune responses by orchestrating other type 2 immune cells. PGE2 is a bioactive lipid that plays protective roles in the lung, particularly during allergic inflammation. OBJECTIVE: We set out to investigate how PGE2 regulates human ILC2 function. METHODS: The effects of PGE2 on human ILC2 proliferation, intracellular cytokine and transcription factor expression were assessed by flow cytometry...
December 4, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29216911/dynamic-expression-of-cytokine-and-transcription-factor-genes-during-experimental-fasciola-gigantica-infection-in-buffaloes
#11
Wei Shi, Zhi-Yong Wei, Hany M Elsheikha, Fu-Kai Zhang, Zhao-An Sheng, Ke-Jing Lu, Dong-Ying Wang, Wei-Yi Huang, Xing-Quan Zhu
BACKGROUND: Determining the mechanisms involved in the immune-pathogenesis of the tropical liver fluke, Fasciola gigantica, is crucial to the development of any effective therapeutic intervention. Here, we examined the differential gene expression of cytokines and transcription factors in the liver of F. gigantica-infected buffaloes, over the course of infection. METHODS: Water buffaloes (swamp type) were infected orally with 500 F. gigantica encysted metacercariae...
December 8, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29213245/implication-of-free-fatty-acids-in-thrombin-generation-and-fibrinolysis-in-vascular-inflammation-in-zucker-rats-and-evolution-with-aging
#12
Jérémy Lagrange, Mélusine Didelot, Amel Mohamadi, Lucy A Walton, Saartje Bloemen, Bas de Laat, Huguette Louis, Simon N Thornton, Brian Derby, Michael J Sherratt, Bruno Fève, Pascal Challande, Riaz Akhtar, J Kennedy Cruickshank, Patrick Lacolley, Véronique Regnault
Background: The metabolic syndrome (MetS) and aging are associated with modifications in blood coagulation factors, vascular inflammation, and increased risk of thrombosis. Objectives: Our aim was to determine concomitant changes in thrombin generation in the blood compartment and at the surface of vascular smooth muscle cells (VSMCs) and its interplay with adipokines, free fatty acids (FFA), and metalloproteinases (MMPs) in obese Zucker rats that share features of the human MetS. Methods: Obese and age-matched lean Zucker rats were compared at 25 and 80 weeks of age...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29211635/association-of-il-13-rs20541-and-rs1295686-variants-with-symptomatic-asthma-in-a-saudi-arabian-population
#13
Rabih Halwani, Alejandro Vazquez-Tello, Rosan Kenana, Maram Al-Otaibi, Khalid A Alhasan, Zahid Shakoor, Saleh Al-Muhsen
OBJECTIVE: Interleukin 13 (IL-13) plays a critical pro-inflammatory role in asthma. Several single nucleotide polymorphisms (SNPs) are associated with asthma susceptibility in specific populations; however, further replicative studies in other ethnic groups are mandatory. METHODS: The association between IL-13 SNPs rs762534, rs20541, rs1295686, and rs1800925 (risk alleles A, A, T, and A, respectively) and asthma predisposition in a Saudi Arabian cohort was examined via a case-control cross-sectional study...
December 6, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29205752/in-vitro-stimulatory-effect-of-n-acetyl-tryptophan-glucopyranoside-against-gamma-radiation-induced-immunosuppression
#14
Poonam Malhotra, Darshana Singh, Raj Kumar
Radiation-induced manifestations like free radical burst, oxidative damage and apoptosis leading to cell death. In present study, N-acetyl tryptophan glucopyranoside (NATG) was assessed for its immune-radioprotective activities using J774A.1 cells. Clonogenic cell survival, cell cycle progression and cytokines i.e. IFN-γ, TNF-α, IL-2, IL-10, IL-12, IL-13 and IL-17A expression were evaluated in irradiated and NATG pretreated cells using clonogenic formation ability, flow cytometry and ELISA assay. Results indicated that 0...
December 4, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29204644/topical-application-of-mizoribine-suppresses-cd4-t-cell-mediated-pathogenesis-in-murine-dry-eye
#15
Xiaobo Zhang, Xiang Lin, Zhaolin Liu, Yang Wu, Yiran Yang, Weijie Ouyang, Wei Li, Zuguo Liu
Purpose: We investigate the effect of topical application of mizoribine (MZR) eye drops on CD4+ T-cell-mediated immunity and epithelial damage in ocular surface of dry eye disease (DED). Methods: Topical application of MZR or vehicle eye drops was performed in mice subjected to desiccating stress (DS). The phenol red cotton test was used to measure tear production, and Oregon-green-dextran (OGD) staining was performed to assess corneal epithelial barrier function...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29203548/utilization-of-host-polyamines-in-alternatively-activated-macrophages-promotes-chronic-infection-by-brucella-abortus
#16
Tobias Kerrinnes, Maria G Winter, Briana M Young, Vladimir E Diaz-Ochoa, Sebastian E Winter, Renée M Tsolis
Treatment of intracellular bacterial pathogens with antibiotic therapy often requires a long course of multiple antibiotics. A barrier to developing strategies that enhance antibiotic efficacy against these pathogens is our poor understanding of the intracellular nutritional environment that maintains bacterial persistence. The intracellular pathogen Brucella abortus survives and replicates preferentially in alternatively activated macrophages (AAM), however knowledge of the metabolic adaptations promoting exploitation of this niche is limited...
December 4, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29203367/cross-talk-between-hydrogen-sulfide-and-carbon-monoxide-in-the-mechanism-of-experimental-gastric-ulcers-healing-regulation-of-gastric-blood-flow-and-accompanying-inflammation
#17
Marcin Magierowski, Katarzyna Magierowska, Magdalena Hubalewska-Mazgaj, Marcin Surmiak, Zbigniew Sliwowski, Mateusz Wierdak, Slawomir Kwiecien, Anna Chmura, Tomasz Brzozowski
Hydrogen sulfide (H2S) and carbon monoxide (CO) exert gastroprotection against acute gastric lesions. We determined the cross-talk between H2S and CO in gastric ulcer healing process and regulation of gastric blood flow (GBF) at ulcer margin. Male Wistar rats with acetic acid-induced gastric ulcers were treated i.g. throughout 9 days with vehicle (control), NaHS (0.1-10 mg/kg) +/- zinc protoporphyrin (ZnPP, 10 mg/kg), D,L-propargylglycine (PAG, 30 mg/kg), CO-releasing CORM-2 (2.5 mg/kg) +/- PAG. GBF was assessed by laser flowmetry, ulcer area was determined by planimetry/histology...
December 1, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29203240/il-13-regulates-il-17c-expression-by-suppressing-nf-%C3%AE%C2%BAb-mediated-transcriptional-activation-in-airway-epithelial-cells
#18
Katsumasa Yamanaka, Tomoyuki Fujisawa, Hideki Kusagaya, Kazutaka Mori, Mitsuru Niwa, Kazuki Furuhashi, Masato Kono, Etsuko Hamada, Takafumi Suda, Masato Maekawa
The cytokine interleukin (IL)-17C is highly expressed in epithelial tissues and involved in innate immune responses; however, the regulation of IL-17C expression in the airways remains poorly understood. Here, we show that IL-1β strongly induces both IL-17C mRNA and protein expression in primary normal human bronchial epithelial cells. Conversely, IL-13 significantly reduced the IL-1β-induced IL-17C expression. Attenuation of the nuclear factor (NF)-κB-signaling pathway using an NF-κB-subunit p65-specific small-interfering RNA (siRNA), reduced IL-1β-induced IL-17C expression, demonstrating the importance of NF-κB signaling in IL-17C regulation...
December 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29202127/obesity-does-not-exacerbate-the-protumorigenic-systemic-environment-in-sarcoma-subjects
#19
Claire M Buchta, Shannon K Boi, Benjamin J Miller, Mohammed M Milhem, Lyse A Norian
Sarcomas are a rare but fatal tumor type that accounts for <1% of adult solid malignancies and ~15% of childhood malignancies. Although the use of immunotherapy is being actively investigated for other solid tumors, advances in immunotherapy for sarcoma patients are lacking. To better understand the systemic immune environment in sarcoma patients, we performed a detailed multiplex analysis of serum cytokines, chemokines, and protumorigenic factors from treatment-naive subjects with localized, high-grade sarcoma...
June 1, 2017: ImmunoHorizons
https://www.readbyqxmd.com/read/29199257/-retinoic-acid-prevents-dendritic-cells-from-inducing-novel-inflammatory-t-cells-that-produce-abundant-interleukin-13
#20
Aya Yokota-Nakatsuma
 Vitamin A (VA) plays critical roles in gut homeostasis. Dendritic cells in mesenteric lymph nodes (MLN-DCs) can metabolize VA to retinoic acid (RA), thereby inducing gut-tropic lymphocytes and enhancing peripheral differentiation of regulatory T cells expressing forkhead box P3. We found that MLN-DCs from VA-deficient mice induced a distinct inflammatory T helper type 2 (Th2)-cell subset that produced abundant interleukin-13 (IL-13) and expressed receptors for homing to skin and inflammatory sites but not to the intestine...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
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