Volume 2.26 | Jul 4

Pulmonary Cell News 2.26 July 4, 2013
Pulmonary Cell News
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Shut Down of Cell Survival Process Found to Influence Fate of Lung Cancer Tumors
New research suggests that inactivation of an essential gene responsible for the cell survival process known as autophagy can suppress the growth of non-small-cell lung cancer tumors and render them more benign. [Press release from the Cancer Institute of New Jersey discussing online prepublication in Genes and Development] Press Release | Abstract
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PUBLICATIONS (Ranked by impact factor of the journal)
Growth of Human Bronchial Epithelial Cells at an Air-Liquid Interface Alters the Response to Particle Exposure
Scientists tested the hypothesis that normal human bronchial epithelial (NHBE) cells grown submerged in media and allowed to differentiate at air-liquid interface demonstrated disparities in the response to particle exposure. Following exposure of submerged NHBE cells to ambient air pollution particle collected in Chapel Hill, NC, RNA for IL-8, IL-6, heme oxygenase 1 and cyclooxygenase 2 increased. [Part Fibre Toxicol]
Abstract | Full Article

Acetylcholine Leads to Signal Transducer and Activator of Transcription 1 (STAT-1) Mediated Oxidative/Nitrosative Stress in Human Bronchial Epithelial Cell Line
Scientists investigated whether acetylcholine generates oxidative/nitrosative stress in bronchial epithelial cells during airway inflammation of COPD and evaluated the effects of Tiotropium, a once-daily antimuscarinic drug, and Olodaterol, a long-acting ß2-agonist on these mechanisms. Induced sputum supernatants (ISSs) from COPD patients significantly increased the phosphorylation of STAT-1Ser727 and STAT-1Tyr701, induction of nitric oxide synthase and reactive oxygen species/Nitrotyrosine when compared with ISSs from healthy controls or healthy smokers subjects in 16-human bronchial epithelial cells. [Biochim Biophys Acta Mol Basis Dis] Abstract

Lysophosphatidic Acid Receptor 2 Deficiency Confers Protection against Bleomycin-Induced Lung Injury and Fibrosis in Mice
In human lung fibroblasts, knock down of lysophosphatidic acid (LPA) receptor 2 (LPA2) attenuated LPA-induced expression of transforming growth factor-ß (TGF-ß1), and differentiation of lung fibroblasts to myofibroblasts resulting in decreased expression of fibronectin, a-smooth muscle actin and collagen, as well as decreased activation of ERK1/2, Akt, Smad3 and p38 MAPK. Moreover, knock down of LPA2 with siRNA also mitigated TGF-ß1-induced differentiation of lung fibroblasts. [Am J Respir Cell Mol Biol] Abstract

Involvement of HIF-2a-Mediated Inflammation in Arsenite-Induced Transformation of Human Bronchial Epithelial Cells
The authors investigated the molecular mechanisms underlying inflammation during neoplastic transformation induced in human bronchial epithelial (HBE) cells by chronic exposure to arsenite. They showed that, on acute or chronic exposure to arsenite, HBE cells over-expressed the pro-inflammatory cytokines, interleukin-6, interleukin-8, and interleukin-1ß. [Toxicol Appl Pharmacol] Abstract

Digoxin Net Secretory Transport in Bronchial Epithelial Cell Layers Is not Exclusively Mediated by P-Glycoprotein/MDR1
Researchers characterized MDR1 expression and the bidirectional transport of the common MDR1 probe 3H-digoxin in air-liquid interfaced layers of normal human bronchial epithelial cells and of the Calu-3 bronchial epithelial cell line at different passage numbers. [Eur J Pharm Biopharm] Full Article

Curcumin Protects the Developing Lung against Long-Term Hyperoxic Injury
To gain mechanistic insights, embryonic day 19 fetal rat lung fibroblasts were examined for markers of apoptosis and MAPK activation following in vitro exposure to hyperoxia for 24 hours in the presence or absence of curcumin. Curcumin effectively blocked hyperoxia-induced lung injury based on systematic analysis for markers of lung injury and lung morphology. [Am J Physiol Lung Cell Mol Physiol] Abstract


Expression of the Antimicrobial Peptide Cathelicidin in Myeloid Cells Is Required for Lung Tumor Growth
Scientists characterized the role of cathelicidin expressed in non-tumorous cells in a preclinical mouse model of tumor growth. In vitro studies with human cells showed that LL-37/hCAP-18 in macrophages is induced by soluble factors derived from cancer cells. [Oncogene] Abstract

STAT3 Upregulates miR-92a to Inhibit RECK Expression and to Promote Invasiveness of Lung Cancer Cells
Signal transducer and activator of transcription 3 (STAT3) activation is frequently found in human lung cancer and is associated with increased metastasis and reduced survival. Enforced expression of STAT3 decreases the endogenous matrix metalloproteinase inhibitor RECK protein but not mRNA level in H460 cells. [Brit J Cancer] Abstract

mTOR Inhibition Does Not Prevent Lung Adenocarcinoma-Induced Malignant Pleural Effusion
The authors investigated the impact of temsirolimus, in a murine model of malignant pleural effusion created with intrapleural injection of Lewis Lung Cancer cells. Temsirolimus did not affect the pleural fluid volume or the number of pleural tumor foci. [Respirology] Abstract

Combined Gemcitabine and CHK1 Inhibitor Treatment Induces Apoptosis Resistance in Cancer Stem Cell-Like Cells Enriched with Tumor Spheroids from a Non-Small Cell Lung Cancer Cell Line
Researchers demonstrated that a subset of cancer cells with cancer stem cell (CSC) properties may be enriched into tumor spheroids under stem cell conditions from a non-small cell lung cancer cell line. Treating these CSC-like cells with gemcitabine alone and a combination of gemcitabine and the novel CHK1 inhibitor PF-00477736 revealed that PF-00477736 enhances the anti-proliferative effect of gemcitabine against both the parental and the CSC-like cell populations. [Front Med] Abstract

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Novel Targets in Non-Small Cell Lung Cancer: ROS1 and RET Fusions
In this review, the authors summarize the molecular biology, clinical features, detection, and targeting of ROS1 and RET rearrangements in non-small cell lung cancer. [Oncologist] Abstract

Visit our reviews page to see a complete list of reviews in the pulmonary cell research field.
ARIKACE Meets Primary Endpoint of Non-Inferiority to TOBI in Phase III Clinical Trial in Europe and Canada to Treat Pseudomonas aeruginosa in Cystic Fibrosis Patients
Insmed Incorporated announced positive developments in both of its clinical development programs for ARIKACE®, or liposomal amikacin for inhalation. [Insmed Incorporated] Press Release

For Persistent Asthma, Surveyed Pulmonologists Indicate That a Reduced Rate of Exacerbations Is One of the Greatest Unmet Needs
Decision Resources found that surveyed pulmonologists in the United States and Europe agree that a drug’s effect on reducing the exacerbation rate is one of the attributes that most influences their prescribing for persistent asthma. [Decision Resources] Press Release

The European Cancer Congress 2013
National Institutes of Health (United States)

Food and Drug Administration (United States)

Center for Biologics Evaluation and Research (United States)

European Medicines Agency (European Union)

Medicines and Healthcare Products Regulatory Agency (United Kingdom)

Therapeutic Goods Administration (Australia)

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NEW COPD: Novel Therapeutics and Management Strategies 2013
October 16-17, 2013
London, United Kingdom

Visit our events page to see a complete list of events in the pulmonary cell community.
NEW PhD Studentship – Unraveling the Pathogenesis of Pulmonary Fibrosis (KU Leuven)

NEW Postdoctoral Position – Idiopathic Pulmonary Fibrosis (University of Minnesota – Twin Cities)

Postdoctoral Fellow – Translational Oncology (The University of Texas MD Anderson Cancer Center)

Director of Cell Processing Facility (S L Collins Associates, Inc.)

PhD Studentships – Pulmonary Biology and Medicine (University of Giessen and Marburg Lung Center)

PhD Opportunity – Biofunctionalization of Liposomes for Tumor-Targeted Drug Delivery (University of East Anglia)

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