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Infiltrative lung disease

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https://www.readbyqxmd.com/read/28935640/attenuation-of-pulmonary-ace2-activity-impairs-inactivation-of-des-arg9-bradykinin-bkb1r-axis-and-facilitates-lps-induced-neutrophil-infiltration
#1
Chhinder P Sodhi, Christine Wohlford-Lenane, Yukihiro Yamaguchi, Thomas Prindle, William B Fulton, Sanxia Wang, Paul B McCray, Mark C Chappell, David J Hackam, Hongpeng Jia
Angiotensin converting enzyme 2 (ACE2) is a terminal carboxypeptidase with important functions in the renin angiotensin system and plays a critical role in inflammatory lung diseases. ACE2 cleaves single terminal residues from several bioactive peptides such as angiotensin II. However, few of its substrates in the respiratory tract have been identified and the mechanism underlying the role of ACE2 in inflammatory lung disease has not been fully characterized. In an effort to identify biological targets of ACE2 in the lung, we tested its effects on des-arg9 bradykinin (DABK) in airway epithelial cells based upon a hypothesis that DABK is a biological substrate of ACE2 in the lung and ACE2 plays an important role in the pathogenesis of acute lung inflammation partly through modulating DABK/BKB1R axis signaling...
September 21, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28935613/maternal-exposure-of-balb-c-mice-to-indoor-no2-and-allergic-asthma-syndrome-in-offspring-at-adulthood-with-evaluation-of-dna-methylation-associated-th2-polarization
#2
Huifeng Yue, Wei Yan, Xiaotong Ji, Rui Gao, Juan Ma, Ziyu Rao, Guangke Li, Nan Sang
BACKGROUND: Fetal stress has been proposed to be associated with diseases in both children and adults. Epidemiological studies suggest that maternal exposure to nitrogen dioxide (NO2) contributes to increased morbidity and mortality of offspring with allergic asthma later in life. OBJECTIVES: We aimed to test whether maternal NO2 exposure causes allergic asthma-related consequences in offspring absent any subsequent lung provocation and whether this exposure enhances the likelihood of developing allergic asthma or the intensity of developed allergic airway disease following postnatal allergic sensitization and challenge...
September 13, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28922566/streptococcus-pneumoniae-and-chronic-endobronchial-infections-in-childhood
#3
Kim M Hare, Amanda J Leach, Heidi C Smith-Vaughan, Anne B Chang, Keith Grimwood
Streptococcus pneumoniae (pneumococcus) is the main cause of bacterial pneumonia worldwide and has been studied extensively in this context. However, its role in chronic endobronchial infections and accompanying lower airway neutrophilic infiltration has received little attention. Severe and recurrent pneumonia are risk factors for chronic suppurative lung disease (CSLD) and bronchiectasis; the latter causes considerable morbidity and, in some populations, premature death in children and adults. Protracted bacterial bronchitis (PBB) is another chronic endobronchial infection associated with substantial morbidity...
September 18, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28922454/surgery-for-t4-lung-cancer-invading-the-thoracic-aorta-do-we-push-the-limits
#4
Giuseppe Marulli, Erino A Rendina, Walter Klepetko, Reinhold Perkmann, Davide Zampieri, Giulio Maurizi, Thomas Klikovits, Francesco Zaraca, Federico Venuta, Egle Perissinotto, Federico Rea
BACKGROUND: Few investigators have described en bloc resection of non-small cell lung cancer (NSCLC) invading the aorta. AIM OF STUDY: Analysis of outcome and prognostic factors for en bloc resections of NSCLC invading the aorta. METHODS: Thirty-five patients (27 males, 8 females; mean age 63 ± 8.6 years) were operated between 1994 and 2015 in four European Centers. HISTOLOGY: 12 (34.3%) squamous cell carcinoma, and 6 (17...
September 18, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28922106/igg4-related-disease-a-patient-with-multiple-organ-involvement
#5
Miroslav Průcha, Lenka Sedláčková
IgG4-related diseases represent a heterogeneous group of conditions characterised by elevated serum IgG4 levels and fibrotic or sclerosing changes in the affected organs or systems accompanied by IgG4-positive plasma cells. A disease associated with IgG4 may affect virtually any organ - salivary glands, periorbital tissue, kidneys, lungs, meninges, aorta, prostate, pericardium or skin. Histopathological findings are uniform, characterised by a major lymphoplasmocytic infiltrate and the presence of IgG4-producing plasma cells, irrespective of the affected site...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28919994/effect-of-entinostat-on-nk-cell-mediated-cytotoxicity-against-osteosarcoma-cells-and-osteosarcoma-lung-metastasis
#6
Simin Kiany, Gangxiong Huang, Eugenie S Kleinerman
There is a crucial need for a new therapeutic approach for osteosarcoma (OS) lung metastasis since this disease remains the main cause of mortality in OS. We previously demonstrated that natural killer (NK) cell therapy has minimal efficacy against OS metastasis. This study determined whether the histone deacetylase inhibitor entinostat could immunosensitize OS cells to NK cell lysis and increases the efficacy of NK cell therapy for OS lung metastasis. Entinostat upregulated ligands for NK cell-activating receptors (major histocompatibility complex [MHC] class I polypeptide-related chain A [MICA] and B [MICB]; UL16 binding proteins 1, 2, 5, and 6; and CD155) on OS cells both in vitro and in vivo and led to more susceptibility to NK cell-mediated cytotoxicity in vitro...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919220/peucedanum-japonicum-extract-attenuates-allergic-airway-inflammation-by-inhibiting-th2-cell-activation-and-production-of-pro-inflammatory-mediators
#7
Jin Mi Chun, A-Reum Lee, Hyo Seon Kim, A Yeong Lee, Gyo Jeong Gu, Byeong Cheol Moon, Bo-In Kwon
ETHNOPHARMACOLOGICAL RELEVANCE: The root of Peucedanum japonicum Thunb is traditionally used to treat coughs, colds, headache and inflammatory diseases in Korea and Japan. Its effects on allergic lung inflammation have not been investigated. AIM OF THE STUDY: To investigate the anti-asthmatic effects of Peucedanum japonicum extract (PJE) using a murine model of asthma and a lipopolysaccharide (LPS)-stimulated macrophage cell line. MATERIALS AND METHODS: Mice underwent two rounds of sensitization with ovalbumin 1 week apart followed by four intranasal ovalbumin challenges on days 13-16...
September 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28912020/intestinal-dysbiosis-featuring-abundance-of-ruminococcus-gnavus-associates-with-allergic-diseases-in-infants
#8
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/28910817/the-lung-in-dysregulated-states-of-humoral-immunity
#9
Yurdagül Uzunhan, Florence Jeny, Marianne Kambouchner, Morgane Didier, Diane Bouvry, Hilario Nunes, Jean-François Bernaudin, Dominique Valeyre
In common variable immunodeficiency, lung manifestations are related to different mechanisms: recurrent pneumonias due to encapsulated bacteria responsible for diffuse bronchiectasis, diffuse infiltrative pneumonia with various patterns, and lymphomas, mostly B cell extranodal non-Hodgkin type. The diagnosis relies on significant serum Ig deficiency and the exclusion of any primary or secondary cause. Histopathology may be needed. Immunoglobulin (IgG) replacement is crucial to prevent infections and bronchiectasis...
September 15, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28906034/small-airway-disease-a-different-phenotype-of-early-stage-copd-associated-with-biomass-smoke-exposure
#10
Dongxing Zhao, Yumin Zhou, Changbin Jiang, Zhuxiang Zhao, Fang He, Pixin Ran
BACKGROUND AND OBJECTIVE: Chronic exposure to biomass smoke (BS) can significantly compromise pulmonary function and lead to chronic obstructive pulmonary disease (COPD). To determine whether BS exposure induces a unique phenotype of COPD from an early stage, with different physiopathological features compared with COPD associated with smoking (cigarette-smoke (CS) COPD), we assessed the physiopathology of early COPD associated with BS exposure (BS COPD) by incorporating spirometry, high-resolution computed tomography (HRCT) imaging, bronchoscopy and pathological examinations...
September 14, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28904861/a-modified-graft-versus-host-induced-model-for-systemic-sclerosis-with-pulmonary-fibrosis-in-rag2-deficient-mice
#11
Xue Yang, Chi Liu, Masayuki Fujino, Ji Yang, Xiao-Kang Li, Hejian Zou
Systemic sclerosis (SSc) is a connective tissue disease that results in fibrosis in multiple organs. Various animal models for this disease have been developed, both genetic and induced. One of the induced models, sclerodermatous graft-versus-host disease (scl-GvHD), exhibits the main characteristics of SSc, but involves lethal γ-irradiation of recipients. We sought to develop a modified scl-GvHD model. Spleen cells from B10.D2 donor mice were transplanted into immunodeficient Rag-2 recipients on the BALB/c genetic background...
September 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28901258/from-biology-to-therapy-improvements-of-therapeutic-options-in-lung-cancer
#12
Luigi Formisano, Valerie M Jansen, Roberta Marciano, Roberto Bianco
Lung cancer is the leading cause of cancer-related mortality around the world, despite effective chemotherapeutic agents, the prognosis has remained poor for a long time. The discovery of molecular changes that drive lung cancer has led to a dramatic shift in the therapeutic landscape of this disease. In "in vitro" and "in vivo" models of NSCLC (non-small cell lung cancer), angiogenesis blockade has demonstrated an excellent anti-tumor activity, thus, a number of anti-angiogenic drugs have been approved by regulatory authorities for use in clinical practice...
September 12, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28892775/challenges-and-perspectives-in-the-immunotherapy-of-hodgkin-lymphoma
#13
REVIEW
Jean-Marie Michot, Julien Lazarovici, David Ghez, Alina Danu, Christophe Fermé, Amélie Bigorgne, Vincent Ribrag, Aurélien Marabelle, Sandrine Aspeslagh
Hodgkin lymphoma (HL) was one of the first few cancers to be cured first with radiotherapy alone and then with a combination of chemotherapy and radiotherapy. Around 80% of the patients with HL will be cured by first-line therapy. However, the ionising radiation not only produces cytotoxicity but also induces alterations in the microenvironment, and patients often struggle with the long-term consequences of these treatments, such as cardiovascular disorders, lung diseases and secondary malignancies. Hence, it is essential to improve treatments while avoiding delayed side-effects...
September 8, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28890294/analysis-of-non-small-cell-lung-cancer-microenvironment-indicates-preponderance-of-t-cell-exhaustion-marker-expression
#14
Hui Zhou, Tingwei Liu, Zanfeng Wang
Lung cancer metastasis causes 70% of an estimated 1.4 million deaths per annum. The major shortcoming in lung cancer is the tendency to have inherent or develop acquired resistance to chemotherapy. It is now evolving that such resistance might develop due to differential contribution and interaction with tumor microenvironment, stromal cells, and the extracellular matrix. The objective of the current study was to define the lung cancer tumor microenvironment. We have identified multiple tumor-infiltrating T lymphocyte subsets in patients with lung cancer, which were independent of disease stage...
September 7, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28886581/skullcapflavone-ii-attenuates-ovalbumin-induced-allergic-rhinitis-through-the-blocking-of-th2-cytokine-production-and-mast-cell-histamine-release
#15
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Ok Hee Chai
Allergic rhinitis is a common heterogeneous chronic upper airway disorder and is an IgE-mediated inflammation characterized by one or more nasal symptoms such as sneezing, itching, nasal discharge, rhinorrhea, post nasal drainage and nasal blockage. In the present study, the effects of skullcapflavone II (SCFII) on upper airway inflammation, Th2 cytokines, and NF-κB signaling in an ovalbumin (OVA)-induced allergic rhinitis (AR) murine model in vivo were investigated. OVA-induced AR mice increased nasal symptoms, eosinophils and mast cells infiltration into nasal cavity, OVA-specific IgE/IgG1 and histamine in serum, Th2 cytokines including IL-13 and GATA3, and NF-κB signaling in NALF and lung homogenate...
September 5, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28884747/adverse-prognostic-value-of-pd-l1-expression-in-primary-resected-pulmonary-squamous-cell-carcinomas-and-paired-mediastinal-lymph-node-metastases
#16
Manuel D Keller, Christina Neppl, Yasin Irmak, Sean R Hall, Ralph A Schmid, Rupert Langer, Sabina Berezowska
Immunohistochemical assessment of programmed cell death (PD)-ligand 1 (PD-L1) expression in lung cancer in the context of therapeutically targeting the PD1/PD-L1 axis is still controversially discussed. This includes the comparability of antibody clones, prognostic value, and discrepancies between primary tumors and metastases. We assessed tumoral PD-L1 expression using clones E1L3N and SP142 in 372 primary resected pulmonary squamous cell carcinomas, including 40 paired N2 lymph node metastases, in relation with clinico-pathological parameters...
September 8, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28883006/acute-fibrinous-and-organising-pneumonia
#17
João Rocha Gonçalves, Ricardo Marques, Paula Serra, Leila Cardoso
Acute fibrinous and organising pneumonia (AFOP) is a rare histological pattern of interstitial lung disease. The authors describe a 60-year-old woman admitted to the hospital for sustained fever, presenting with an alveolar opacity on chest X-ray, with the presumed diagnosis of community-acquired pneumonia and the onset of antibiotics. Since serological results suggested that Legionella pneumophila was the infectious agent, she was discharged on levofloxacin. A week later, she was again admitted with fever...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28878315/cholesterol-modified-hydroxychloroquine-loaded-nanocarriers-in-bleomycin-induced-pulmonary-fibrosis
#18
Li Liu, Jun Ren, Zhiyao He, Ke Men, Ye Mao, Tinghong Ye, Hua Chen, Ling Li, Bocheng Xu, Yuquan Wei, Xiawei Wei
An increasing number of reports have suggested the use of hydroxychloroquine (HCQ) as an adjunct anti-cancer treatment to enhance the chemotherapeutic response, as well as for the treatment of several fibrotic skin diseases and cystic fibrosis. In this study, we synthesized a cholesterol-modified HCQ (Chol-HCQ) and hypothesized that a systemic delivery system with Chol-HCQ nanocarriers could be effective for the treatment of bleomycin-induced pulmonary fibrosis. Chol-HCQ significantly inhibits the proliferation of rat lung fibroblasts, regulates inflammation and ameliorates bleomycin-induced pulmonary fibrosis in rats...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877978/how-i-manage-pulmonary-langerhans-cell-histiocytosis
#19
Gwenaël Lorillon, Abdellatif Tazi
Pulmonary Langerhans cell histiocytosis (PLCH) is a rare sporadic cystic lung disease of unknown aetiology that is characterised by the infiltration and destruction of the wall of distal bronchioles by CD1a(+) Langerhans-like cells. In adults, PLCH is frequently isolated and affects young smokers of both sexes. Recent multicentre studies have led to the more standardised management of patients in clinical practice. Smoking cessation is essential and is occasionally the only suitable intervention. Serial lung function testing is important because a significant proportion of patients may experience an early decline in forced expiratory volume in 1 s and develop airflow obstruction...
September 30, 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/28877055/solitary-fibrous-tumors-of-the-head-and-neck-a-multi-institutional-clinicopathologic-study
#20
Steven C Smith, William E Gooding, Matthew Elkins, Rajiv M Patel, Paul W Harms, Andrew S McDaniel, Nallasivam Palanisamy, Cora Uram-Tuculescu, Bonnie B Balzer, David R Lucas, Raja R Seethala, Jonathan B McHugh
Solitary fibrous tumors (SFTs) of the head and neck are uncommon. Lesions previously diagnosed in the head and neck as hemangiopericytomas (HPCs), giant cell angiofibromas (GCAs), and orbital fibrous histiocytomas (OFHs) are now recognized as within the expanded spectrum of SFTs. To better understand the clinicopathologic profile of head and neck SFTs, we performed a multi-institutional study of 88 examples. There was no sex predilection (F:M ratio 1.2), and the median patient age was 52 years (range: 15 to above 89 y)...
September 4, 2017: American Journal of Surgical Pathology
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