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Non th2 asthma

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https://www.readbyqxmd.com/read/28992358/role-of-galectin-3-in-the-pathophysiology-underlying-allergic-lung-inflammation-in-a-timp-1-knockout-model-of-murine-asthma
#1
Manoj J Mammen, Mark F Sands, Elaine Abou-Jaoude, Ravikumar Aalinkeel, Jessica L Reynolds, Neil U Parikh, Umesh Sharma, Stanley A Schwartz, Supriya D Mahajan
Asthma is a chronic inflammatory respiratory disease characterized by airway inflammation, airway hyper-responsiveness and reversible airway obstruction. Understanding the mechanisms that underlie the various endotypes of asthma could lead to novel and more personalized therapies for individuals with asthma. Utilizing a Tissue inhibitors of metalloproteinase-1 (TIMP-1) knockout murine allergic asthma model, we previously showed that Tissue inhibitors of metalloproteinase-1 deficiency results in an asthma phenotype, exhibiting airway hyperreactivity, enhanced eosinophilic inflammation, and TH2 cytokine gene and protein expression following sensitization with ovalbumin...
October 9, 2017: Immunology
https://www.readbyqxmd.com/read/28982074/autophagy-regulates-duox1-localization-and-superoxide-production-in-airway-epithelial-cells-during-chronic-il-13-stimulation
#2
John D Dickinson, Jenea M Sweeter, Kristi J Warren, Iman M Ahmad, Xavier De Deken, Matthew C Zimmerman, Steven L Brody
The airway epithelium is a broad interface with the environment, mandating well-orchestrated responses to properly modulate inflammation. Classically, autophagy is a homeostatic pathway triggered in response to external cellular stresses, and is elevated in chronic airway diseases. Recent findings highlight the additional role of autophagy in vesicle trafficking and protein secretion, implicating autophagy pathways in complex cellular responses in disease. Th2 cytokines, IL-13 and IL-4, are increased in asthma and other airway diseases contributing to chronic inflammation...
September 22, 2017: Redox Biology
https://www.readbyqxmd.com/read/28955341/chimeric-antigen-receptor-redirected-regulatory-t-cells-suppress-experimental-allergic-airway-inflammation-a-model-of-asthma
#3
Jelena Skuljec, Markus Chmielewski, Christine Happle, Anika Habener, Mandy Busse, Hinrich Abken, Gesine Hansen
Cellular therapy with chimeric antigen receptor (CAR)-redirected cytotoxic T cells has shown impressive efficacy in the treatment of hematologic malignancies. We explored a regulatory T cell (Treg)-based therapy in the treatment of allergic airway inflammation, a model for asthma, which is characterized by an airway hyper-reactivity (AHR) and a chronic, T helper-2 (Th2) cell-dominated immune response to allergen. To restore the immune balance in the lung, we redirected Tregs by a CAR toward lung epithelia in mice upon experimentally induced allergic asthma, closely mimicking the clinical situation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28939412/th1-signatures-are-present-in-the-lower-airways-of-children-with-severe-asthma-regardless-of-allergic-status
#4
Julia A Wisniewski, Lyndsey M Muehling, Jacob D Eccles, Brian J Capaldo, Rachana Agrawal, Debbie-Ann Shirley, James T Patrie, Lisa J Workman, Alexander J Schuyler, Monica G Lawrence, W Gerald Teague, Judith A Woodfolk
BACKGROUND: The pathogenesis of severe asthma in childhood remains poorly understood. OBJECTIVE: To construct the immunological landscape in the airways of children with severe asthma. METHODS: Comprehensive analysis of multiple cell types and mediators was performed by flow cytometry and multiplex assay using bronchoalveolar lavage (BAL) specimens (n=68) from 52 highly characterized allergic and non-allergic children (0.5-17 years) with severe treatment-refractory asthma...
September 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28912020/intestinal-dysbiosis-featuring-abundance-of-ruminococcus-gnavus-associates-with-allergic-diseases-in-infants
#5
Huey-Huey Chua, Hung-Chieh Chou, Ya-Ling Tung, Bor-Luen Chiang, Chien-Chia Liao, Hong-Hsing Liu, Yen-Hsuan Ni
BACKGROUND & AIMS: Dysbiosis of the intestinal microbiota has been associated with development of allergies in infants. However, it is not clear what microbes might contribute to this process. We investigated what microbe(s) might be involved in analyses of infant twins and mice. METHODS: We studied fecal specimens prospectively in a twin cohort (n=30) and age-matched singletons (n=14) born at National Taiwan University Children's Hospital, Taipei, Taiwan, from April 2011 to March 2013...
September 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28863927/the-role-of-non-invasive-modalities-for-assessing-inflammation-in-patients-with-non-cystic-fibrosis-bronchiectasis
#6
Stamatoula Tsikrika, Katerina Dimakou, Andriana I Papaioannou, Georgios Hillas, Loukas Thanos, Kostantinos Kostikas, Stelios Loukides, Spyros Papiris, Nickolaos Koulouris, Petros Bakakos
INTRODUCTION: Bronchiectasis is a heterogeneous entity, taking into account clinical characteristics, inflammatory response, effectiveness of treatment and frequency of exacerbations. In stable state non-cystic fibrosis (non-CF) bronchiectasis, little is known about non-invasive techniques used for evaluating airway inflammation in obstructive airway diseases. OBJECTIVES: We sought to evaluate the associations between induced sputum and clinical/radiologic characteristics, and the differences between biomarkers expressing Th1 and Th2 response in patients with non-CF bronchiectasis and to compare our findings with a previously studied population of patients with asthma and COPD...
August 29, 2017: Cytokine
https://www.readbyqxmd.com/read/28756630/dna-methylation-of-th2-lineage-determination-genes-at-birth-is-associated-with-allergic-outcomes-in-childhood
#7
S J Barton, S Ngo, P Costello, E Garratt, S El-Heis, E Antoun, R Clarke-Harris, R Murray, T Bhatt, G Burdge, C Cooper, H Inskip, E M van der Beek, A Sheppard, K M Godfrey, K A Lillycrop
BACKGROUND: There is now increasing evidence that asthma and atopy originate in part in utero, with disease risk being associated with the altered epigenetic regulation of genes. OBJECTIVE AND METHODS: To determine the relationship between variations in DNA methylation at birth and the development of allergic disease, we examined the methylation status of CpG loci within the promoter regions of Th1/2 lineage commitment genes (GATA3, IL-4, IL-4R, STAT4 and TBET) in umbilical cord DNA at birth in a cohort of infants from the Southampton Women's Survey (n = 696) who were later assessed for asthma, atopic eczema and atopy...
July 30, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28737932/ins-and-outs-in-environmental-and-occupational-safety-studies-of-asthma-and-engineered-nanomaterials
#8
Marina A Dobrovolskaia, Michael R Shurin, Valerian E Kagan, Anna A Shvedova
According to the Centers for Disease Control and Prevention, approximately 25 million Americans suffer from asthma. The disease total annual cost is about $56 billion and includes both the direct and indirect costs of medications, hospital stays, missed work, and decreased productivity. Air pollution with xenobiotics, bacterial agents, and industrial nanomaterials, such as carbon nanotubes, contribute to the exacerbation of this condition and are a point of particular attention in environmental toxicology as well as in occupational health and safety research...
August 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28668505/regulation-of-allergic-airway-inflammation-by-adoptive-transfer-of-cd4-t-cells-preferentially-producing-il-10
#9
Masaya Matsuda, Kana Doi, Tatsuya Tsutsumi, Shinya Fujii, Maki Kishima, Kazuma Nishimura, Ikue Kuroda, Yu Tanahashi, Rino Yuasa, Toshihiko Kinjo, Nobuyuki Kuramoto, Nobuaki Mizutani, Takeshi Nabe
Anti-inflammatory pharmacotherapy for asthma has mainly depended on the inhalation of glucocorticoids, which non-specifically suppress immune responses. If the anti-inflammatory cytokine interleukin (IL)-10 can be induced by a specific antigen, asthmatic airway inflammation could be suppressed when individuals are exposed to the antigen. The purpose of this study was to develop cellular immunotherapeutics for atopic diseases using IL-10-producing CD4(+) T cells. Spleen cells isolated from ovalbumin (OVA)-sensitized mice were cultured with the antigen, OVA and growth factors, IL-21, IL-27 and TGF-β for 7 days...
June 29, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28658564/a-clustering-approach-to-identify-and-characterize-the-asthma-and-chronic-obstructive-pulmonary-disease-overlap-phenotype
#10
K Hirai, T Shirai, M Suzuki, T Akamatsu, T Suzuki, I Hayashi, A Yamamoto, T Akita, S Morita, K Asada, D Tsuji, K Inoue, K Itoh
BACKGROUND: Asthma and chronic obstructive pulmonary disease (COPD) are heterogeneous diseases. The phenotypes that have clinical features of both asthma and COPD are still incompletely understood. OBJECTIVE: To clarify the best discriminators of the asthma-COPD overlap phenotype from asthma and COPD subgroups using a clustering approach. METHODS: This study assessed pathophysiological parameters, including mRNA expression levels of T helper cell-related transcription factors, namely TBX21 (Th1), GATA3 (Th2), RORC (Th17) and FOXP3 (Treg), in peripheral blood mononuclear cells in asthma patients (n=152) and in COPD patients (n=50)...
November 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28658559/innate-and-adaptive-type-2-immunity-in-lung-allergic-inflammation
#11
REVIEW
Masato Kubo
Allergic inflammation is a type 2 immune disorder classically characterized by high levels of immunoglobulin E (IgE) and the development of Th2 cells. Asthma is a pulmonary allergic inflammatory disease resulting in bronchial hyper-reactivity. Atopic asthma is defined by IgE antibody-mediated mast cell degranulation, while in non-atopic asthma there is no allergen-specific IgE and more involvement of innate immune cells, such as basophils, group 2 innate lymphoid cells (ILC2), and eosinophils. Recently, protease allergens were shown to cause asthmatic responses in the absence of Th2 cells, suggesting that an innate cell network (IL-33/TSLP-basophil-ILC2-IL-5/IL-13 axis) can facilitate the sensitization phase of type 2 inflammatory responses...
July 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28629744/mannose-receptor-modulates-macrophage-polarization-and-allergic-inflammation-through-mir-511-3p
#12
Yufeng Zhou, Danh C Do, Faoud T Ishmael, Mario Leonardo Squadrito, Ho Man Tang, Ho Lam Tang, Man-Hsun Hsu, Lipeng Qiu, Changjun Li, Yongqing Zhang, Kevin G Becker, Mei Wan, Shau-Ku Huang, Peisong Gao
BACKGROUND: Mannose receptor (MRC1/CD206) has been suggested to mediate allergic sensitization and asthma to multiple glyco-allergens, including cockroach allergens. OBJECTIVE: Determine the existence of a protective mechanism through which MRC1 limits allergic inflammation through its intronic miR-511-3p. METHODS: We examined the MRC1-mediated cockroach allergen uptake by lung macrophages and lung inflammation using C57BL/6 wild-type (WT) and Mrc1(-/-) mice...
June 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28608279/the-recombinant-fusion-protein-of-cholera-toxin-b-and-neutrophil-activating-protein-expressed-on-bacillus-subtilis-spore-surface-suppresses-allergic-inflammation-in-mice
#13
Hui Dong, Yanmei Huang, Shuwen Yao, Bingshao Liang, Yan Long, Yongqiang Xie, Jialiang Mai, Sitang Gong, Zhenwen Zhou
The neutrophil-activating protein of Helicobacter pylori (HP-NAP) has been identified as a modulator with anti-Th2 inflammation activity, and cholera toxin B (CTB) is a mucosal adjuvant that can also induce antigen tolerance. In this study, we constructed a CTB-NAP fusion protein on the surface of Bacillus subtilis spore and evaluate the efficiency of oral administration of the recombinant CTB-NAP spores in preventing asthma in mice. Oral administration of recombinant CTB or CTB-NAP spores significantly decreased serum ovalbumin (OVA)-specific IgE (p < 0...
June 12, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28591193/differential-effects-of-formaldehyde-exposure-on-airway-inflammation-and-bronchial-hyperresponsiveness-in-balb-c-and-c57bl-6-mice
#14
Luanluan Li, Li Hua, Yafang He, Yixiao Bao
Epidemiological evidence suggests that formaldehyde (FA) exposure may influence the prevalence and severity of allergic asthma. However, the role of genetic background in FA-induced asthma-like responses is poorly understood. In the present study, we investigated the nature and severity of asthma-like responses triggered by exposure to different doses of FA together with or without ovalbumin (OVA) in two genetically different mouse strains-BALB/c and C57BL/6. Both mouse strains were divided into two main groups: the non-sensitized group and the OVA-sensitized group...
2017: PloS One
https://www.readbyqxmd.com/read/28528200/sputum-transcriptomics-reveal-upregulation-of-il-1-receptor-family-members-in-patients-with-severe-asthma
#15
Christos Rossios, Stelios Pavlidis, Uruj Hoda, Chih-Hsi Kuo, Coen Wiegman, Kirsty Russell, Kai Sun, Matthew J Loza, Frederic Baribaud, Andrew L Durham, Oluwaseun Ojo, Rene Lutter, Anthony Rowe, Aruna Bansal, Charles Auffray, Ana Sousa, Julie Corfield, Ratko Djukanovic, Yike Guo, Peter J Sterk, Kian Fan Chung, Ian M Adcock
BACKGROUND: Sputum analysis in asthmatic patients is used to define airway inflammatory processes and might guide therapy. OBJECTIVE: We sought to determine differential gene and protein expression in sputum samples from patients with severe asthma (SA) compared with nonsmoking patients with mild/moderate asthma. METHODS: Induced sputum was obtained from nonsmoking patients with SA, smokers/ex-smokers with severe asthma, nonsmoking patients with mild/moderate asthma (MMAs), and healthy nonsmoking control subjects...
May 18, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28511944/serum-periostin-in-patients-hospitalized-for-copd-exacerbations
#16
Elissavet Konstantelou, Andriana I Papaioannou, Stelios Loukides, Konstantinos Bartziokas, Anastasia Papaporfyriou, Georgios Papatheodorou, Petros Bakakos, Spyros Papiris, Nikolaos Koulouris, Konstantinos Kostikas
Serum periostin has been proposed as a surrogate biomarker of Th2 inflammatory response in patients with asthma, but its predictive role in hospitalized patients with COPD has not been evaluated. The aim of the present observational prospective cohort study was to evaluate the possible role of serum periostin as predictor of outcome in COPD patients hospitalized for AECOPD. Serum periostin was measured on admission and at discharge in patients admitted to the hospital for a COPD exacerbation. Patients were followed-up for 1year for future exacerbations, hospitalizations and mortality...
May 2017: Cytokine
https://www.readbyqxmd.com/read/28506264/an-association-between-pulmonary-mycobacterium-avium-intracellulare-complex-infections-and-biomarkers-of-th2-type-inflammation
#17
Paul E Pfeffer, Susan Hopkins, Ian Cropley, David M Lowe, Marc Lipman
BACKGROUND: The rising incidence of pulmonary Mycobacterium avium-intracellulare complex (MAI) infection is unexplained but parallels the growing world-wide epidemic of allergic disease. We hypothesized an association between pulmonary MAI infection and Th2-type immune responses as seen in allergy. METHODS: Biomarkers of patient Th2-type immune responses (peripheral blood eosinophil counts and serum IgE levels) were compared between patients with positive pulmonary samples for tuberculosis and non-tuberculous mycobacterial (NTM) infection...
May 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28442213/pathogenic-cd4-t-cells-in-patients-with-asthma
#18
REVIEW
Lyndsey M Muehling, Monica G Lawrence, Judith A Woodfolk
Asthma encompasses a variety of clinical phenotypes that involve distinct T cell-driven inflammatory processes. Improved understanding of human T-cell biology and the influence of innate cytokines on T-cell responses at the epithelial barrier has led to new asthma paradigms. This review captures recent knowledge on pathogenic CD4(+) T cells in asthmatic patients by drawing on observations in mouse models and human disease. In patients with allergic asthma, TH2 cells promote IgE-mediated sensitization, airway hyperreactivity, and eosinophilia...
April 22, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28426171/sputum-basophils-are-increased-in-eosinophilic-asthma-compared-with-non-eosinophilic-asthma-phenotypes
#19
C R Brooks, C J van Dalen, I F Hermans, P G Gibson, J L Simpson, J Douwes
Sputum basophil numbers are increased in allergic asthmatics, but it is unclear what role airway basophils play in "TH2-low" asthma phenotypes. Using flow cytometry, we found that basophils were significantly increased in all asthmatics (n=26) compared with healthy controls (n=8) (P=0.007) with highest levels observed in eosinophilic asthma (EA); median 0.22%, IQR 0.11%-0.47%; n=14) compared with non-EA (NEA) (0.06%, 0.00%-0.20%; n=12; P<0.05). In asthmatics, basophils were positively correlated with sputum eosinophils (r=0...
October 2017: Allergy
https://www.readbyqxmd.com/read/28338920/dendritic-cell-expression-of-the-signaling-molecule-traf6-is-required-for-immune-tolerance-in-the-lung
#20
Daehee Han, Matthew C Walsh, Kwang Soon Kim, Sung-Wook Hong, Junyoung Lee, Jaeu Yi, Gloriany Rivas, Yongwon Choi, Charles D Surh
Immune tolerance in the lung is important for preventing hypersensitivity, such as allergic asthma. Maintenance of tolerance in the lung is established by coordinated activities of poorly understood cellular and molecular mechanisms, including participation of dendritic cells (DCs). We have previously identified DC expression of the signaling molecule TRAF6 as a non-redundant requirement for the maintenance of immune tolerance in the small intestine of mice. Because mucosal tissues share similarities in how they interact with exogenous antigens, we examined the role of DC-expressed TRAF6 in the lung...
February 1, 2017: International Immunology
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