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https://www.readbyqxmd.com/read/28094276/b7-h3-participates-in-the-development-of-asthma-by-augmentation-of-the-inflammatory-response-independent-of-tlr2-pathway
#1
Wenjing Gu, Xinxing Zhang, Yongdong Yan, Yuqing Wang, Li Huang, Meijuan Wang, Xuejun Shao, Zhengrong Chen, Wei Ji
B7-H3, a new member of the B7 superfamily, acts as both a T cell costimulator and coinhibitor. Recent studies identified B7-H3 plays a critical role in the development of asthma. But the definitive mechanism is not clear. In this study, we further report that B7-H3 participates in the development of OVA-induced asthma in a murine model. And study its mechanism through the vitro and vivo experiment. Exogenous administration of B7-H3 strongly amplified the inflammatory response and augmented proinflammatory cytokines in vitro and vivo...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28092864/augmentation-of-humoral-and-cellular-immunity-in-response-to-tetanus-and-diphtheria-toxoids-by-supercritical-carbon-dioxide-extracts-of-hippophae-rhamnoides-l-leaves
#2
Bindhya Jayashankar, Divya Singh, Himanshi Tanwar, K P Mishra, Swetha Murthy, Sudipta Chanda, Jigni Mishra, R Tulswani, K Misra, S B Singh, Lilly Ganju
Hippophae rhamnoides L. commonly known as Seabuckthorn (SBT), a wild shrub of family Elaegnacea, has extensively used for treating various ailments like skin diseases, jaundice, asthma, lung troubles. SBT leaves have been reported to possess several pharmacological properties including immunomodulatory, antioxidant, anti-inflammatory, antimicrobial and tissue regeneration etc. The present study was undertaken to evaluate the adjuvant property of supercritical carbon dioxide extracts (SCEs 300ET and 350ET) of SBT leaves in balb/c mice immunized with Tetanus and Diphtheria toxoids...
January 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28092612/evaluation-of-serum-cytokine-levels-in-recurrent-airway-obstruction
#3
A Niedźwiedź, H Borowicz, K Kubiak, J Nicpoń, P Skrzypczak, Z Jaworski, M Cegielski, J Nicpoń
Recurrent airway obstruction (RAO) represents a serious health problem and is traditionally classified as an allergic disease, where contact with an antigen can induce clinical airway inflammation, bronchial hyper-responsiveness and reversible airway obstruction. Previous studies have demonstrated the presence of the Th2 response in the lungs of human patients with asthma and horses with heaves. These cells are involved in the production of cytokines which regulate the synthesis of immunoglobulins. 40 horses were evaluated: 30 horses with RAO and 10 healthy animals...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28087917/-reasearch-progress-on-the-role-of-neutrophils-in-asthma
#4
Tingting Li, Yuehai Ke, Hongqiang Cheng
Asthma is a phenotypically heterogeneous chronic disease of the airways. Studies have found that neutrophils are crucial to airway inflammation in acute asthma, persistent asthma, particularly in asthma of poor response to glucocorticoid treatment. The role of neutrophils in development of bronchial asthma is complex, as they can release a potent source of cytokines and inflammatory mediators participating in asthma. Differing from eosinophilic inflammatory asthma, neutrophilic inflammatory asthma is not depend on helper T (Th)2 cells, but may be related to Th1 and Th17 cells...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28063403/lat-alleviates-th2-treg-imbalance-in-an-ova-induced-allergic-asthma-mouse-model-through-lat-plc-%C3%AE-1-interaction
#5
Xi Chen, Xiao-Ming Li, Wen Gu, Di Wang, Yi Chen, Xue-Jun Guo
INTRODUCTION: Low expression of linker for activation of T cells (LAT) is observed in asthma. LAT and its downstream regulator, phospholipase C-gamma 1 (PLC-γ1) play important roles in the T cell antigen receptor signaling pathway, and their interaction is associated with CD4(+) cell polarization. Here, we investigated whether LAT can alleviate the imbalance among CD4(+) cell subgroups and the possible mechanism. METHODS: An ovalbumin-induced allergic asthma mouse model was established and LAT plasmid was delivered...
January 4, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28045458/bacteria-isolated-from-lung-modulate-asthma-susceptibility-in-mice
#6
Aude Remot, Delphyne Descamps, Marie-Louise Noordine, Abdelhak Boukadiri, Elliot Mathieu, Véronique Robert, Sabine Riffault, Bart Lambrecht, Philippe Langella, Hamida Hammad, Muriel Thomas
Asthma is a chronic, non-curable, multifactorial disease with increasing incidence in industrial countries. This study evaluates the direct contribution of lung microbial components in allergic asthma in mice. Germ-Free and Specific-Pathogen-Free mice display similar susceptibilities to House Dust Mice-induced allergic asthma, indicating that the absence of bacteria confers no protection or increased risk to aeroallergens. In early life, allergic asthma changes the pattern of lung microbiota, and lung bacteria reciprocally modulate aeroallergen responsiveness...
January 3, 2017: ISME Journal
https://www.readbyqxmd.com/read/27986411/interleukin-16-and-ccl17-thymus-and-activation-regulated-chemokine-in-patients-with-aspirin-exacerbated-respiratory-disease
#7
Luis Manuel Teran, Fernando Ramirez-Jimenez, Gabriela Soid-Raggi, Juan Raymundo Velazquez
BACKGROUND: Interleukin (IL) 16 and thymus and activation-regulated cytokine (TARC) are chemoattractant cytokines for eosinophils and TH2 cells. Differential levels of these components in aspirin-exacerbated respiratory disease (AERD) and allergic rhinitis with asthma (ARwA) may be related to a different inflammatory response in both asthma phenotypes. OBJECTIVE: To assess the nasal lavage immunoreactivity of IL-16 and TARC cytokines. METHODS: We used multienzyme-linked immunosorbent assays to detect IL-5, IL-13, IL-16, IL-33, I-309/CCL1, TARC/CCL17, monocyte-derived chemokine/CCL22, periostin, and eosinophil cationic protein levels in nasal lavages from patients with AERD and patients with ARwA...
December 13, 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/27984001/psoriatic-inflammation-enhances-allergic-airway-inflammation-through-il-23-stat3-signaling-in-a-murine-model
#8
Ahmed Nadeem, Naif O Al-Harbi, Mushtaq A Ansari, Mohammed M Al-Harbi, Ahmed M El-Sherbeeny, Khairy M A Zoheir, Sabry M Attia, Mohamed M Hafez, Othman A Al-Shabanah, Sheikh F Ahmad
Psoriasis is an autoimmune inflammatory skin disease characterized by activated IL-23/STAT3/Th17 axis. Recently psoriatic inflammation has been shown to be associated with asthma. However, no study has previously explored how psoriatic inflammation affects airway inflammation. Therefore, this study investigated the effect of imiquimod (IMQ)-induced psoriatic inflammation on cockroach extract (CE)-induced airway inflammation in murine models. Mice were subjected to topical and intranasal administration of IMQ and CE to develop psoriatic and airway inflammation respectively...
January 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27956356/a-standardized-methanol-extract-of-eclipta-prostrata-l-l-asteraceae-reduces-bronchial-hyperresponsiveness-and-production-of-th2-cytokines-in-a-murine-model-of-asthma
#9
Lucas Junqueira de Freitas Morel, Bruna Cestari de Azevedo, Fábio Carmona, Silvia Helena Taleb Contini, Aristônio Magalhães Teles, Fernando Silva Ramalho, Bianca Waléria Bertoni, Suzelei de Castro França, Marcos de Carvalho Borges, Ana Maria Soares Pereira
ETHNOPHARMACOLOGICAL RELEVANCE: Eclipta prostrata (L.) L. (Asteraceae) has been used in Brazilian traditional medicine to treat asthma and other respiratory illnesses. AIMS OF THE STUDY: To investigate the effects of different doses of a standardized extract of E. prostrata using a murine model of allergen induced asthma. MATERIALS AND METHODS: Balb/c mice were sensitized twice with ovalbumin (OVA) administered intraperitoneally and challenged over four alternate days with nasal instillations of OVA solution...
December 9, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27939889/trigonella-foenum-graecum-alleviates-airway-inflammation-of-allergic-asthma-in-ovalbumin-induced-mouse-model
#10
Chun Hua Piao, Thi Tho Bui, Chang Ho Song, Hee Soon Shin, Dong-Hwa Shon, Ok Hee Chai
Trigonella foenum-graecum, a member oldest medicinal plant in the fabaceae (legumes) family, is used as a herb, spice, and vegetable, and known for its olfactory, laxative, and galactogogue effects. However, the inhibitory effect of Trigonella foenum-graecum on allergic inflammatory response remains unclear, therefore, we investigated the precise role of Trigonella foenum-graecum in the allergic asthma and revealed the effects of Trigonella foenum-graecum in regulating airway inflammation and its possible mechanism...
January 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27918476/antenatal-dexamethasone-exposure-in-preterm-infants-is-associated-with-allergic-diseases-and-the-mental-development-index-in-children
#11
Wan-Ning Tseng, Chih-Cheng Chen, Hong-Ren Yu, Li-Tung Huang, Ho-Chang Kuo
Background: Antenatal steroid administration may benefit fetal lung maturity in preterm infants. Although some studies have shown that this treatment may increase asthma in childhood, the correlation between antenatal dexamethasone exposure and allergic diseases remains unclear. The purpose of this study is to investigate the association between antenatal dexamethasone and T cell expression in childhood allergic diseases. Methods: We recruited a cohort of preterm infants born at Kaohsiung Chang Gung Memorial Hospital between 2007 and 2010 with a gestational age of less than 35 weeks and body weight at birth of less than 1500 g...
December 3, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27918221/neutrophilic-inflammation-in-asthma-mechanisms-and-therapeutic-considerations
#12
Hun Soo Chang, Tae-Hyeong Lee, Ji Ae Jun, Ae Rin Baek, Jong-Sook Park, So-My Koo, Yang-Ki Kim, Ho Sung Lee, Choon-Sik Park
Neutrophilic airway inflammation represents a pathologically distinct form of asthma and frequently appears in symptomatic adulthood asthmatics. However, clinical impacts and mechanisms of the neutrophilic inflammation have not been thoroughly evaluated up to date. Areas covered: Currently, distinct clinical manifestations, triggers, and molecular mechanisms of the neutrophilic inflammation (namely Toll-like receptor, Th1, Th17, inflammasome) are under investigation in asthma. Furthermore, possible role of the neutrophilic inflammation is being investigated in respect to the airway remodeling...
January 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/27913952/association-of-interleukin-18-and-asthma
#13
REVIEW
Ming-Hui Xu, Feng-Lai Yuan, Shu-Jing Wang, Hui-Ying Xu, Cheng-Wan Li, Xiao Tong
Cytokine-mediated immunity plays a dominant role in the pathogenesis of various immune diseases, including asthma. The recent identification of the family interleukin (IL)-1-related cytokine IL-18 now contributes to our understanding of the fine-tuning of cellular immunity. IL-18 can act as a cofactor for Th2 cell development and IgE production and also plays an important role in the differentiation of Th1 cells. Recent work identified an IL-18 association with the pathogenesis of asthma, wherein increased IL-18 expression was found in the serum of patients...
December 2, 2016: Inflammation
https://www.readbyqxmd.com/read/27902892/microrna-145-influences-the-balance-of-th1-th2-via-regulating-runx3-in-asthma-patients
#14
Linxia Fan, Xiaojun Wang, Linlan Fan, Qizhang Chen, Hong Zhang, Hui Pan, Aixia Xu, Hongjuan Wang, Yang Yu
AIM OF THE STUDY: To delineate the underlying mechanism of microRNA-145 modulate the balance of Th1/Th2 via targeting RUNX3 in asthma patients. MATERIALS AND METHODS: Peripheral blood samples were collected from asthma patients and healthy controls. CD4(+) T cells were isolated and cultured. Using quantitative PCR detect, the level of microRNA-145 and RUNX3 mRNA level in the CD4(+) T cells from asthma patients and healthy controls, meanwhile, western blot was used to detect the RUNX3 protein level...
November 30, 2016: Experimental Lung Research
https://www.readbyqxmd.com/read/27896542/immunomodulatory-effects-of-adjuvants-cpg-mpla-and-bcg-on-the-derp2-induced-acute-asthma-at-early-life-in-an-animal-model-of-balb-c-mice
#15
V Mohammadi-Shahrokhi, A Rezaei, A Andalib, A Rahnama, A Jafarzadeh, N Eskandari
The Th1- and Treg cell-related immune responses play key roles in the modulation of Th2 cell-related allergic disorders. The aim was to evaluate the effects of CPG, MPLA, and BCG on the number of Th1-, Th2-, and Treg cell-related parameters in an animal model of asthma. BALB/c mice were divided into five groups and immunized subcutaneously (SC) on days 1, 15, and 22 with allergen Derp2. Three groups of mice were pretreated SC on days 0, 14, and 21 with CPG, CPG + MPLA, or CPG + BCG. All mice were then challenged intranasally with Derp2 on days 28-37...
November 28, 2016: Inflammation
https://www.readbyqxmd.com/read/27884791/immunomodulatory-effect-of-characterized-extract-of-zataria-multiflora-on-th1-th2-and-th17-in-normal-and-th2-polarization-state
#16
Majid Kianmehr, Abdolrahim Rezaei, Mahmoud Hosseini, Mohammad Reza Khazdair, Ramin Rezaee, Vahid Reza Askari, Mohammad Hossein Boskabady
The effect of the extract of Zataria multiflora (Z. multiflora) on IFN-γ, FOXP3, IL-4, TGF-β, and IL-17 gene expression was evaluated in cultured splenocytes obtained from control, nontreated asthma or sensitized mice (group S), Sensetized animals treated with dexamethasone or three concentrations of Z. multiflora extract (200, 400 and 800 μg/ml) (n = 6, for each group). IFN-γ and FOXP3 gene expressions were significantly decreased (P < 0.001 for both cases) but IL-4 (P < 0.001) and IL-17 (P < 0...
January 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27870920/picroside-ii-attenuates-airway-inflammation-by-downregulating-the-transcription-factor-gata3-and-th2-related-cytokines-in-a-mouse-model-of-hdm-induced-allergic-asthma
#17
Jin Choi, Bo Kyong Choi, Jin Seok Kim, Jae-Won Lee, Hyun Ah Park, Hyung Won Ryu, Su Ui Lee, Kwang Woo Hwang, Won-Kee Yun, Hyoung-Chin Kim, Kyung-Seop Ahn, Sei-Ryang Oh, Hyun-Jun Lee
Picroside II isolated from Pseudolysimachion rotundum var. subintegrum has been used as traditional medicine to treat inflammatory diseases. In this study, we assessed whether picroside II has inhibitory effects on airway inflammation in a mouse model of house dust mite (HDM)-induced asthma. In the HDM-induced asthmatic model, picroside II significantly reduced inflammatory cell counts in the bronchoalveolar lavage fluid (BALF), the levels of total immunoglobulin (Ig) E and HDM-specific IgE and IgG1 in serum, airway inflammation, and mucus hypersecretion in the lung tissues...
2016: PloS One
https://www.readbyqxmd.com/read/27847316/allergies-a-t-cells-perspective-in-the-era-beyond-the-th1-th2-paradigm
#18
REVIEW
Moritz Berker, Larissa Johanna Frank, Anja Lidwina Geßner, Niklas Grassl, Anne Verena Holtermann, Stefanie Höppner, Christian Kraef, Martin Dominik Leclaire, Pia Maier, David Alexander Christian Messerer, Lino Möhrmann, Jan Philipp Nieke, Diana Schoch, Dominik Soll, Christina Marianne Paulina Woopen
Allergic diseases have emerged as a major health care burden, especially in the western hemisphere. They are defined by overshooting reactions of an aberrant immune system to harmless exogenous stimuli. The TH1/TH2 paradigm assumes that a dominance of TH2 cell activation and an inadequate TH1 cell response are responsible for the development of allergies. However, the characterization of additional T helper cell subpopulations such as TH9, TH17, TH22, THGM-CSF and their interplay with regulatory T cells suggest further layers of complexity...
November 12, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27842944/the-influence-of-hydro-ethanolic-extract-of-portulaca-oleracea-l-on-th1-th2-balance-in-isolated-human-lymphocytes
#19
Vahid Reza Askari, Seyed Abdolrahim Rezaee, Khalil Abnous, Mehrdad Iranshahi, Mohammad Hossein Boskabady
ETHNOPHARMACOLOGICAL RELEVANCE: The anti-inflammatory and anti-oxidants activity of Portulaca oleracea L. (P. oleracea) were mentioned in traditional texts. In previous studies, different anti-inflammatory and anti-oxidant effects of P. oleracea were demonstrated. However, the mechanism of action and immunomodulatory property of this plant are greatly unknown. In the present study, the effect of the extract of this plant on IL-4, IL10, IFN-γ and T helper (h)1/Th2 balance in non-stimulated and stimulated human lymphocytes was examined...
December 24, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27836376/-new-drugs-for-severe-asthma
#20
Caroline Sattler, Roxane Malrin, Gilles Garcia, Marc Humbert
Asthma is a very frequent disease with complex and heterogenous immunological and clinical features. Daily inhaled steroids are the cornerstone of the current therapeutics sometimes associated with long-acting β2-agonist. This controller treatment is effective and allows to control asthma symptoms for the vast majority of the patients. Severe asthma is characterized by a poor level of control of symptoms, with recurrent exacerbations or a chronic airflow limitation despite an optimal management. Severe asthma remains a difficult diagnosis but we have now studies proving the clinical efficacy or promising data about monoclonal antibodies targeting IgE, IL-5, IL-4 or IL-13...
November 2016: La Presse Médicale
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