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Infiltrative lung disease

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https://www.readbyqxmd.com/read/28096298/mfg-e8-derived-peptide-attenuates-adhesion-and-migration-of-immune-cells-to-endothelial-cells
#1
Yohei Hirano, Weng-Lang Yang, Monowar Aziz, Fangming Zhang, Barbara Sherry, Ping Wang
Milk fat globule-epidermal growth factor-factor 8 (MFG-E8) plays an immunomodulatory role in inflammatory diseases. MFG-E8-derived short peptide (MSP68) greatly reduces neutrophil infiltration and injury in the lung during sepsis. In this study, we examined the effect of MSP68 on chemotaxis of various immune cells and its regulatory mechanism. Bone marrow-derived neutrophils (BMDNs) from C57BL/6 mice, human monocyte THP-1 cell line, and human T lymphocyte Jurkat cell line were used for adhesion and migration assays using a Transwell method in the presence of MSP68...
January 17, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28094581/early-immunopathological-events-in-acute-model-of-mycobacterial-hypersensitivity-pneumonitis-in-mice
#2
Elisabet Johansson, Gregory P Boivin, Jagjit S Yadav
Prolonged exposure to antigens of non-tuberculous mycobacteria species colonizing industrial metalworking fluid (MWF), particularly Mycobacterium immunogenum (MI), has been implicated in chronic forms of hypersensitivity pneumonitis (HP) in machinists based on epidemiology studies and long-term exposure of mouse models. However, a role of short-term acute exposure to these antigens has not been described in the context of acute forms of HP. This study investigated short-term acute exposure of mice to MI cell lysate (or live cell suspension) via oropharyngeal aspiration...
January 17, 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28091932/current-concept-of-igg4-related-disease
#3
Kazuichi Okazaki, Hisanori Umehara
IgG4-related disease (IgG4-RD) is a fibroinflammatory disease of unknown etiology, which is characterized by a tendency to form tumefactive lesions, increased serum levels of IgG4, and massive infiltration of IgG4-positive plasma cells with storiform fibrosis and/or obliterative phlebitis. Patients with IgG4-RD have frequently multiorgan involvements such as the pancreas, biliary tree, salivary glands, periorbital tissues, kidneys, lungs, lymph nodes, and retroperitoneum. IgG4-RD mainly affects middle-aged to elderly men except for involvement in lachrymal and salivary glands, so-called Mikulicz's disease...
December 28, 2016: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28091773/the-nervous-system-of-airways-and-its-remodeling-in-inflammatory-lung-diseases
#4
REVIEW
Katrin Julia Audrit, Lucas Delventhal, Öznur Aydin, Christina Nassenstein
Inflammatory lung diseases are associated with bronchospasm, cough, dyspnea and airway hyperreactivity. The majority of these symptoms cannot be primarily explained by immune cell infiltration. Evidence has been provided that vagal efferent and afferent neurons play a pivotal role in this regard. Their functions can be altered by inflammatory mediators that induce long-lasting changes in vagal nerve activity and gene expression in both peripheral and central neurons, providing new targets for treatment of pulmonary inflammatory diseases...
January 14, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28087613/systemic-and-mucosal-pre-administration-of-recombinant-helicobacter-pylori-neutrophil-activating-protein-prevents-ovalbumin-induced-allergic-asthma-in-mice
#5
Shuai Zhou, Yanmei Huang, Bingshao Liang, Hui Dong, Shuwen Yao, Yinshuang Chen, Yongqiang Xie, Yan Long, Sitang Gong, Zhenwen Zhou
PURPOSE: Previous epidemiologic studies have demonstrated an inverse association between Helicobacter pylori infection and the frequency of allergic asthma. The neutrophil-activating protein (NAP) of Helicobacter pylori has been identified as a modulator possessing anti-Th2 inflammation activity. Here, we sought to determine whether systemic or mucosal pre-administration of recombinant Helicobacter pylori NAP (rNAP) could prevent ovalbumin-induced allergic asthma in mice. METHODS: Mice were exposed to purified rNAP through intraperitoneal injection or inhalation and then sensitized with ovalbumin...
January 12, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28079853/solely-lung-involved-igg4-related-disease-a-case-report-and-review-of-the-literature
#6
Xiao-Qin Zhang, Guo-Ping Chen, Sheng-Chang Wu, Sa Yu, Hong Wang, Xuan-Yi Chen, Zhuo-Chao Ren
By analyzing the clinical data of 1 case of IgG4-related lung disease(IgG4-RLD) and the review of literature, the author investigated the clinical characteristics of IgG4-RLD. IgG4-RLD is a rare disease characterized by significant elevation of serum IgG4 and infiltration of a large number of IgG4+ plasma cells. The clinical manifestations of the disease were nonspecific, and the imaging features were mixed with several types. The disease can only be involved in the lung, but also multiple organ involvement...
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28079848/high-resolution-computed-tomography-to-differentiate-chronic-diffuse-infiltrative-lung-diseases-with-chronic-multifocal-consolidation-patterns-using-logical-analysis-of-data
#7
Constance De Margerie-Mellon, Geneviève Dion, Julien Darlay, Imene Ridene, Marianne Kambouchner, Nadia Brauner, Michel Brauner, Dominique Valeyre, Pierre-Yves Brillet
BACKGROUND: Chronic lung consolidation has a limited number of differential diagnoses requiring distinct managements. The aim of the study was to investigate how logical analysis of data (LAD) can support their diagnosis at HRCT (high-resolution computed tomography). METHODS: One hundred twenty-four patients were retrospectively included and classified into 8 diagnosis categories: sarcoidosis (n=35), connective tissue disease (n=21), adenocarcinoma (n=17), lymphoma (n=13), cryptogenic organizing pneumonia (n=11), drug-induced lung disease (n=9), chronic eosinophilic pneumonia (n =7) and miscellaneous (n=11)...
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28079597/histologic-findings-of-severe-therapy-resistant-asthma-from-video-assisted-thoracoscopic-surgery-biopsies
#8
Humberto E Trejo Bittar, Daniel Doberer, Mitra Mehrad, Diane C Strollo, Joseph K Leader, Sally Wenzel, Samuel A Yousem
The histologic changes occurring in severe/therapy-resistant asthma (SA) as defined by the European Respiratory Society/American Thoracic Society guidelines, particularly at the level of the distal airways are unknown. This study describes the clinical, radiologic, and histologic characteristics of 29 SA patients who underwent video-assisted thoracoscopic surgery lung biopsy. Pathologic observations were correlated with clinical features, especially the presence of autoimmune disease (AID) (15/29, 51.7%). Ten biopsies (10/29, 34...
February 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28078088/immunoglobulin-g4-related-disease-presenting-as-a-pulmonary-nodule-with-an-irregular-margin
#9
Tetsuyuki Okubo, Yumiko Oyamada, Masaya Kawada, Yo Kawarada, Shuji Kitashiro, Shunichi Okushiba
We report a case of immunoglobulin G4 (IgG4)-related lung disease presenting as a solitary pulmonary nodule with an irregular margin on computed tomography. The nodule showed a high standardized uptake value on positron emission tomography. A malignant pulmonary tumour could not be excluded. Middle lobectomy was performed. Histological analysis revealed marked lymphoplasmacytic infiltration and storiform fibrosis. Immunostaining indicated the presence of IgG4-positive plasma cells. A definitive diagnosis of IgG4-related disease was confirmed...
January 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28077599/blt1-mediates-bleomycin-induced-lung-fibrosis-independently-of-neutrophils-and-cd4-t-cells
#10
Jiaoyan Lv, Yingluo Xiong, Wenjing Li, Wei Yang, Lina Zhao, Rui He
Leukotriene B4 (LTB4) and its functional receptor BLT1 are closely involved in tissue inflammation by primarily mediating leukocyte recruitment and activation. Elevated LTB4 was reported in patients with lung fibrosis; however, the role of the LTB4/BLT1 axis in lung fibrosis remains unknown. In this study, we demonstrated that BLT1(-/-) mice exhibited significantly attenuated bleomycin (BLM)-induced lung fibrosis. Interestingly, BLT1 blockade with its specific antagonist U75302 in the acute injury phase (days 0-10 after BLM treatment) significantly attenuated lung fibrosis, which was accompanied by significant decreases in early infiltrating neutrophils and later infiltrating CD4(+) T cells and the production of TGF-β, IL-13, and IL-17A...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28077598/notch-ligand-delta-like-4-promotes-regulatory-t-cell-identity-in-pulmonary-viral-infection
#11
Hung-An Ting, Matthew A Schaller, Denise E de Almeida Nagata, Andrew J Rasky, Ivan P Maillard, Nicholas W Lukacs
Regulatory T (Treg) cells establish tolerance, prevent inflammation at mucosal surfaces, and regulate immunopathology during infectious responses. Recent studies have shown that Delta-like ligand 4 (Dll4) was upregulated on APC after respiratory syncytial virus (RSV) infection, and its inhibition leads to exaggerated immunopathology. In the present study, we outline the role of Dll4 in Treg cell differentiation, stability, and function in RSV infection. We found that Dll4 was expressed on CD11b(+) pulmonary dendritic cells in the lung and draining lymph nodes in wild-type BALB/c mice after RSV infection...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28074993/-fatal-interstitial-lung-disease-associated-with-maximum-androgen-blockade
#12
Guillermo Molina Mancero, Xavier Picón, Fernando Di Tullio, Glenda Ernst, Pablo Dezanzo, Alejandro Salvado, Julio F Chertcoff
Maximum androgen blockade is the standard endocrine treatment for advanced prostate cancer. Interstitial lung disease in different degrees of severity, with low mortality and excellent response to treatment may appear with its use. We report a 77 years old patient with advanced prostate cancer who developed severe and progressive respiratory failure associated to bilateral pulmonary infiltrates, attributed to the direct effect of maximum androgen blockade. Despite the therapeutic efforts, the patient died. Lung pathology revealed Usual Interstitial Pneumonia...
October 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28068928/newly-recognized-cerebral-infarctions-on-postmortem-imaging-a-report-of-three-cases-with-systemic-infectious-disease
#13
Sakon Noriki, Kazuyuki Kinoshita, Kunihiro Inai, Toyohiko Sakai, Hirohiko Kimura, Takahiro Yamauchi, Masayuki Iwano, Hironobu Naiki
BACKGROUND: Postmortem imaging (PMI) refers to the imaging of cadavers by computed tomography (CT) and/or magnetic resonance imaging (MRI). Three cases of cerebral infarctions that were not found during life but were newly recognized on PMI and were associated with severe systemic infections are presented. CASE PRESENTATIONS: An 81-year-old woman with a pacemaker and slightly impaired liver function presented with fever. Imaging suggested interstitial pneumonia and an iliopsoas abscess, and blood tests showed liver dysfunction and disseminated intravascular coagulation (DIC)...
January 10, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28065474/a-single-low-dose-of-a-cgmp-recombinant-bcg-vaccine-elicits-protective-t-cell-immunity-against-the-human-respiratory-syncytial-virus-infection-and-prevents-lung-pathology-in-mice
#14
Pablo F Céspedes, Emma Rey-Jurado, Janyra A Espinoza, Claudia A Rivera, Gisela Canedo-Marroquín, Susan M Bueno, Alexis M Kalergis
Human respiratory syncytial virus (hRSV) is a major health burden worldwide, causing the majority of hospitalizations in children under two years old due to bronchiolitis and pneumonia. HRSV causes year-to-year outbreaks of disease, which also affects the elderly and immunocompromised adults. Furthermore, both hRSV morbidity and epidemics are explained by a consistently high rate of re-infections that take place throughout the patient life. Although significant efforts have been invested worldwide, currently there are no licensed vaccines to prevent hRSV infection...
January 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28064485/astragalin-inhibits-allergic-inflammation-and-airway-thickening-in-ovalbumin-challenged-mice
#15
Yun-Ho Kim, Yean-Jung Choi, Min-Kyung Kang, Sin-Hye Park, Lucia Dwi Antika, Eun-Jung Lee, Dong Yeon Kim, Young-Hee Kang
Lung inflammation and oxidative stress are the major contributors to developing obstructive pulmonary diseases. Macrophages are involved in pulmonary inflammation and alveolar damage in emphysema. Astragalin is an anti-inflammatory flavonoid present in persimmon leaves and green tea seeds. This study elucidated that astragalin inhibited inflammatory cell infiltration induced by 20 μM H2O2, and blocked airway thickening and alveolar emphysema induced by 20 μg ovalbumin (OVA) in mice. OVA induced mouse pulmonary MCP-1, and H2O2 enhanced the expression of MCP-1/ICAM-1/αv integrin in bronchial airway epithelial BEAS-2B cells...
January 9, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28063042/murine-models-of-allergic-asthma
#16
Eline Haspeslagh, Nincy Debeuf, Hamida Hammad, Bart N Lambrecht
Allergic asthma is a heterogeneous inflammatory lung disease affecting millions of people worldwide and with a steadily increasing incidence. Mouse models have been of utmost importance in uncovering key inflammatory cell types, cytokines, and pathways in the development and maintenance of allergic asthma. Historically, the mainstay in experimental asthma research was sensitizing rodents to the model protein antigen ovalbumin (OVA) with the pro-Th2 adjuvant aluminum hydroxide, followed by repetitive OVA exposures to the airways to initiate a Th2-skewed adaptive immune response leading to eosinophilic airway inflammation and airway hyperreactivity (AHR)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28062291/pathological-vicissitudes-and-oxidative-stress-enzyme-responses-in-mice-experimentally-infected-with-reptarenavirus-isolate-upm-my01
#17
Yusuf Abba, Hasliza Hassim, Hazilawati Hamzah, Omar Emad Ibrahim, Mohd Azmi Mohd Lila, Mohamed Mustapha Noordin
Boid inclusion body disease (BIBD) is a viral disease of boid snakes believed to be caused by reptarenavirus belonging to the family Arenaviridae. Unlike most mammalian arenaviruses, the reservoir host for reptarenavirus is still unknown. In this study, the pathological responses were evaluated in a mouse model for a period of 28 days. Blood and tissue samples (lung, liver, spleen, heart, kidney and brain) were collected for evaluation of hematology, biochemistry, histopathology and oxidative enzyme levels at six time points (1, 3, 7, 14, 21 and 28 days), after viral infection (2...
January 3, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28059112/meprin-%C3%AE-contributes-to-collagen-deposition-in-lung-fibrosis
#18
V Biasin, M Wygrecka, L M Marsh, C Becker-Pauly, L Brcic, B Ghanim, W Klepetko, A Olschewski, G Kwapiszewska
Lung fibrosis is a severe disease characterized by epithelial cell injury, inflammation and collagen deposition. The metalloproteases meprinα and meprinβ have been shown to enhance collagen maturation and inflammatory cell infiltration via cleavage of cell-cell contact molecules; therefore we hypothesized that meprins could play a role in lung fibrosis. An exhaustive characterization of bleomycin-treated meprinα, meprinβ and the double meprinsαβ knock-out (KO) with respective wt-littermates was performed by using several different methods...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28057059/invasive-pneumococcal-disease-caused-by-mucoid-serotype-3-streptococcus-pneumoniae-a-case-report-and-literature-review
#19
Naomi Sugimoto, Yuka Yamagishi, Jun Hirai, Daisuke Sakanashi, Hiroyuki Suematsu, Naoya Nishiyama, Yusuke Koizumi, Hiroshige Mikamo
BACKGROUND: Among the different serotypes of Streptococcus pneumoniae, serotype 3 has received global attention. We report the fatal case of a 76-year-old Japanese man who had an invasive pneumococcal disease associated with pneumonia caused by serotype 3 S. pneumoniae. CASE PRESENTATION: The patient had a history of hypertension, laryngeal cancer, chronic obstructive pulmonary disease, and type 2 diabetes mellitus. Following a cerebral arteriovenous malformation hemorrhage, he underwent surgery to remove the hematoma and began rehabilitation...
January 4, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28057010/update-on-lysinuric-protein-intolerance-a-multi-faceted-disease-retrospective-cohort-analysis-from-birth-to-adulthood
#20
Wladimir Mauhin, Florence Habarou, Stéphanie Gobin, Aude Servais, Anaïs Brassier, Coraline Grisel, Célina Roda, Graziella Pinto, Despina Moshous, Fahd Ghalim, Pauline Krug, Nelly Deltour, Clément Pontoizeau, Sandrine Dubois, Murielle Assoun, Louise Galmiche, Jean-Paul Bonnefont, Chris Ottolenghi, Jacques de Blic, Jean-Baptiste Arnoux, Pascale de Lonlay
BACKGROUND: Lysinuric protein intolerance (LPI) is a rare metabolic disease resulting from recessive-inherited mutations in the SLC7A7 gene encoding the cationic amino-acids transporter subunit y(+)LAT1. The disease is characterised by protein-rich food intolerance with secondary urea cycle disorder, but symptoms are heterogeneous ranging from infiltrative lung disease, kidney failure to auto-immune complications. This retrospective study of all cases treated at Necker Hospital (Paris, France) since 1977 describes LPI in both children and adults in order to improve therapeutic management...
January 5, 2017: Orphanet Journal of Rare Diseases
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