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https://www.readbyqxmd.com/read/28332630/pml-nuclear-bodies-contribute-to-the-basal-expression-of-the-mtor-inhibitor-ddit4
#1
Jayme Salsman, Alex Stathakis, Ellen Parker, Dudley Chung, Livia E Anthes, Kara L Koskowich, Sara Lahsaee, Daniel Gaston, Kimberly R Kukurba, Kevin S Smith, Ian C Chute, Daniel Léger, Laura D Frost, Stephen B Montgomery, Stephen M Lewis, Christopher Eskiw, Graham Dellaire
The promyelocytic leukemia (PML) protein is an essential component of PML nuclear bodies (PML NBs) frequently lost in cancer. PML NBs coordinate chromosomal regions via modification of nuclear proteins that in turn may regulate genes in the vicinity of these bodies. However, few PML NB-associated genes have been identified. PML and PML NBs can also regulate mTOR and cell fate decisions in response to cellular stresses. We now demonstrate that PML depletion in U2OS cells or TERT-immortalized normal human diploid fibroblasts results in decreased expression of the mTOR inhibitor DDIT4 (REDD1)...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330503/caffeine-modulates-glucocorticoid-induced-expression-of-ctgf-in-lung-epithelial-cells-and-fibroblasts
#2
Markus Fehrholz, Kirsten Glaser, Christian P Speer, Silvia Seidenspinner, Barbara Ottensmeier, Steffen Kunzmann
BACKGROUND: Although caffeine and glucocorticoids are frequently used to treat chronic lung disease in preterm neonates, potential interactions are largely unknown. While anti-inflammatory effects of glucocorticoids are well defined, their impact on airway remodeling is less characterized. Caffeine has been ascribed to positive effects on airway inflammation as well as remodeling. Connective tissue growth factor (CTGF, CCN2) plays a key role in airway remodeling and has been implicated in the pathogenesis of chronic lung diseases such as bronchopulmonary dysplasia (BPD) in preterm infants...
March 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28327506/efficacy-and-safety-evaluation-of-a-chlorine-dioxide-solution
#3
Jui-Wen Ma, Bin-Syuan Huang, Chu-Wei Hsu, Chun-Wei Peng, Ming-Long Cheng, Jung-Yie Kao, Tzong-Der Way, Hao-Chang Yin, Shan-Shue Wang
In this study, a chlorine dioxide solution (UC-1) composed of chlorine dioxide was produced using an electrolytic method and subsequently purified using a membrane. UC-1 was determined to contain 2000 ppm of gaseous chlorine dioxide in water. The efficacy and safety of UC-1 were evaluated. The antimicrobial activity was more than 98.2% reduction when UC-1 concentrations were 5 and 20 ppm for bacteria and fungi, respectively. The half maximal inhibitory concentrations (IC50) of H1N1, influenza virus B/TW/71718/04, and EV71 were 84...
March 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28325283/silencing-of-carbohydrate-sulfotransferase-15-hinders-murine-pulmonary-fibrosis-development
#4
Yoshiro Kai, Koichi Tomoda, Hiroyuki Yoneyama, Masahiro Kitabatake, Atsuhiro Nakamura, Toshihiro Ito, Masanori Yoshikawa, Hiroshi Kimura
Pulmonary fibrosis is a progressive lung disorder characterized by interstitial fibrosis, for which no effective treatments are available. Chondroitin sulfate proteoglycan (CSPG) has been shown to be a mediator, but the specific component of glycosaminoglycan chains of CSPG has not been explored. We show that chondroitin sulfate E-type (CS-E) is involved in fibrogenesis. Small interfering RNA (siRNA) targeting carbohydrate sulfotransferase 15 (CHST15) was designed to inhibit CHST15 mRNA and its product, CS-E...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28322466/the-role-of-mir-497-eif3a-axis-in-tgf%C3%AE-1-induced-epithelial-mesenchymal-transition-and-extracellular-matrix-in-rat-alveolar-epithelial-cells-and-pulmonary-fibroblasts
#5
Ren Guo, Yu Lv, Yang Ouyang, Siyu Liu, Dai Li
Multi-cause-induced interstitial lung disease, particularly pulmonary fibrosis, is a serious clinical concern. fibroblasts have been suggested to have a major role, with it recently being revealed that some of these fibroblasts are derived from alveolar epithelial cells through epithelial-mesenchymal transition (EMT). Eukaryotic translation initiation factor 3 subunit A (EIF3A) is a protein that in humans is encoded by the EIF3A gene, and has been suggested to play roles in regulating translation of a subset of mRNAs and in regulating cell cycle progression and cell proliferation...
March 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28320095/dt-13-a-saponin-monomer-13-of-the-dwarf-lilyturf-tuber-synergized-with-vinorelbine-to-induce-mitotic-arrest-via-activation-of-erk-signaling-pathway-in-nci-h1299-cells
#6
Hongyang Li, Li Sun, Hang Li, Xiaodan Lv, Herve Semukunzi, Ruiming Li, Jun Yu, Shengtao Yuan, Sensen Lin
Vinorelbine (NVB) is a semi-synthetic vinca alkaloid that is approved for the clinical therapy of lung cancer. However, the clinical application of NVB was limited because of the acquisition of resistance and inacceptable toxicity. Therefore, it is of great interest to develop low-cytotoxic drugs that can synergize with NVB. DT-13, a saponin monomer 13 of the Dwarf lilyturf tuber, showed inhibitory effects on tumor metastasis and angiogenesis in the previous studies. Here, we found that DT-13 combined with NVB exhibited synergistic effect to inhibit the cell proliferation in human lung cancer NCI-H1299 cells rather than human embryonic lung fibroblasts WI-38...
March 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28316159/-mechanism-of-angiotensin-converting-enzyme-2-overexpression-improving-collagen-synthesis-in-lung
#7
Q J Yang, B B Zheng, N N Sun, M X Pan, Z M Zheng, Y Meng
Objective: To explore the mechanism of angiotensin-converting enzyme 2 (ACE2) overexpression improving collagen synthesis in lung. Methods: Lung fibroblasts of mice over-expressing ACE2 and the wild type (WT) were cultured in vitro and divided into 5 groups: WT-control, WT-AngiotensinⅡ (AngⅡ), ACE2(+ /+) -control, ACE2(+ /+) -AngⅡ and ACE2(+ /+) -AngⅡ+ A779. The protein relative expression levels of ACE2, collagen Ⅰ, nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4), nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3), autophagy-related protein (Beclin1), ubiquitin-binding protein p62 (P62), microtubule-associated proteins light chain 3-Ⅱ (LC3-Ⅱ) were measured by Western blot and triphosadenine (ATP) level was measured by ATP Assay Kit...
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28315692/role-of-epithelial-mesenchymal-transition-emt-and-fibroblast-function-in-cerium-oxide-nanoparticles-induced-lung-fibrosis
#8
Jane Ma, Bridget Bishoff, R R Mercer, Mark Barger, Diane Schwegler-Berry, Vincent Castranova
The emission of cerium oxide nanoparticles (CeO2) from diesel engines, using cerium compounds as a catalyst to lower the diesel exhaust particles, is a health concern. We have previously shown that CeO2 induced pulmonary inflammation and lung fibrosis. The objective of the present study was to investigate the modification of fibroblast function and the role of epithelial-mesenchymal transition (EMT) in CeO2-induced fibrosis. Male Sprague-Dawley rats were exposed to CeO2 (0.15 to 7mg/kg) by a single intratracheal instillation and sacrificed at various times post-exposure...
March 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28315487/xpln-is-modulated-by-hdac-inhibitors-and-negatively-regulates-sparc-expression-by-targeting-mtorc2-in-human-lung-fibroblasts
#9
Koichiro Kamio, Arata Azuma, Jiro Usuki, Kuniko Matsuda, Minoru Inomata, Nobuhiko Nishijima, Shioto Itakura, Hiroki Hayashi, Takeru Kashiwada, Nariaki Kokuho, Kenichiro Atsumi, Tomoyoshi Yamaguchi, Kazue Fujita, Yoshinobu Saito, Shinji Abe, Kaoru Kubota, Akihiko Gemma
Pathogenesis of idiopathic pulmonary fibrosis (IPF) remains unclear. Secreted protein acidic and rich in cysteine (SPARC) is a matricellular protein that participates in the assembly and turnover of the extracellular matrix, whose expression is regulated by transforming growth factor (TGF)-β1 through activation of mammalian target of rapamycin complex 2 (mTORC2). Exchange factor found in platelets, leukemic, and neuronal tissues (XPLN) is an endogenous inhibitor of mTORC2. However, whether XPLN modulates SPARC expression remains unknown...
March 14, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28315337/p53-signaling-pathway-polymorphisms-associated-with-emphysematous-changes-in-copd-patients
#10
Shiro Mizuno, Takeshi Ishizaki, Maiko Kadowaki, Masaya Akai, Kohei Shiozaki, Masaharu Iguchi, Taku Oikawa, Ken Nakagawa, Kazuhiro Osanai, Hirohisa Toga, Jose Gomez-Arroyo, Donatas Kraskauskas, Carlyne D Cool, Herman J Bogaard, Norbert F Voelkel
BACKGROUND: The p53 signaling pathway may be important for the pathogenesis of emphysematous changes in the lungs of smokers. Polymorphism of p53 at codon 72 is known to affect apoptotic effector proteins, and the polymorphism of mouse double minute 2 homolog (MDM2) SNP309 is known to increase MDM2 expression. The aim of this study was to assess polymorphisms of the p53 and MDM2 genes in smokers and confirm the role of SNPs in these genes in the pathogenesis of pulmonary emphysema. METHODS: 365 patients with a smoking history were included in this study, and the polymorphisms of p53 and MDM2 genes were identified...
March 14, 2017: Chest
https://www.readbyqxmd.com/read/28314668/extracellular-superoxide-dismutase-increased-the-therapeutic-potential-of-human-mesenchymal-stromal-cells-in-radiation-pulmonary-fibrosis
#11
Li Wei, Jing Zhang, Zai-Liang Yang, Hua You
BACKGROUND AIMS: Pulmonary fibrosis induced by irradiation is a significant problem of radiotherapy in cancer patients. Extracellular superoxide dismutase (SOD3) is found to be predominantly and highly expressed in the extracellular matrix of lung and plays a pivotal role against oxidative damage. Early administration of mesenchymal stromal cells (MSCs) has been demonstrated to reduce fibrosis of damaged lung. However, injection of MSCs at a later stage would be involved in fibrosis development...
March 14, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28303927/efficient-generation-of-chemically-induced-mesenchymal-stem-cells-from-human-dermal-fibroblasts
#12
Pei-Lun Lai, Hsuan Lin, Shang-Fu Chen, Shang-Chih Yang, Kuo-Hsuan Hung, Ching-Fang Chang, Hsiang-Yi Chang, Frank Leigh Lu, Yi-Hsuan Lee, Yu-Chuan Liu, Hsiao-Chun Huang, Jean Lu
Human mesenchymal stromal/stem cells (MSCs) are multipotent and currently undergoing hundreds of clinical trials for disease treatments. To date, no studies have generated induced MSCs from skin fibroblasts with chemicals or growth factors. Here, we established the first chemical method to convert primary human dermal fibroblasts into multipotent, induced MSC-like cells (iMSCs). The conversion method uses a defined cocktail of small molecules and growth factors, and it can achieve efficient conversion with an average rate of 38% in 6 days...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28301273/a-cross-sectional-study-of-changes-in-markers-of-immunological-effects-and-lung-health-due-to-exposure-to-multi-walled-carbon-nanotubes
#13
Jelle Vlaanderen, Anjoeka Pronk, Nathaniel Rothman, Allan Hildesheim, Debra Silverman, H Dean Hosgood, Suzanne Spaan, Eelco Kuijpers, Lode Godderis, Peter Hoet, Qing Lan, Roel Vermeulen
Background Multi Wall Carbon nanotubes (MWCNTs) are manufactured nanomaterials to which workers and the general population will be increasingly exposed in coming years. Little is known about potential human health effects of exposure to MWCNTs, but effects on the lung and the immune system have been reported in animal and mechanistic studies. Objectives We conducted a cross-sectional study to assess the association between occupational exposure to MWCNTs and effects on lung health and the immune system. Methods We assessed fifty-one immune markers and three pneumoproteins in serum, complete blood cell counts (CBC), fractional exhaled nitric oxide (FENO), and lung function among twenty-two workers of a MWCNT producing facility and thirty-nine age- and gender-matched, unexposed controls...
March 16, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28300574/sex-steroid-receptor-expression-in-idiopathic-pulmonary-fibrosis
#14
Mitra Mehrad, Humberto E Trejo Bittar, Samuel A Yousem
Usual interstitial pneumonia (UIP) is characterized by progressive scarring of the lungs and is associated with high morbidity and mortality despite therapeutic interventions. Sex steroid receptors have been demonstrated to play an important role in chronic lung conditions; however, their significance is unknown in patients with UIP. We retrospectively reviewed 40 idiopathic UIP cases for the expression of hormonal receptors. Forty cases including 10 normal lung, 10 cryptogenic organizing pneumonia (COP), 10 idiopathic organizing diffuse alveolar damage (DAD), 7 hypersensitivity pneumonitis (HP) and 3 nonspecific interstitial pneumonitis (NSIP) served as controls...
March 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28299597/the-stellate-cell-system-vitamin-a-storing-cell-system
#15
REVIEW
Haruki Senoo, Yoshihiro Mezaki, Mutsunori Fujiwara
Past, present, and future research into hepatic stellate cells (HSCs, also called vitamin A-storing cells, lipocytes, interstitial cells, fat-storing cells, or Ito cells) are summarized and discussed in this review. Kupffer discovered black-stained cells in the liver using the gold chloride method and named them stellate cells (Sternzellen in German) in 1876. Wake rediscovered the cells in 1971 using the same gold chloride method and various modern histological techniques including electron microscopy. Between their discovery and rediscovery, HSCs disappeared from the research history...
March 15, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/28297588/oncostatin-m-preconditioned-mesenchymal-stem-cells-alleviate-bleomycin-induced-pulmonary-fibrosis-through-paracrine-effects-of-the-hepatocyte-growth-factor
#16
Ying-Wei Lan, Si-Min Theng, Tsung-Teng Huang, Kong-Bung Choo, Chuan-Mu Chen, Han-Pin Kuo, Kowit-Yu Chong
Mesenchymal stem cells (MSCs) are widely considered for treatment of pulmonary fibrosis based on the anti-inflammatory, antifibrotic, antiapoptotic, and regenerative properties of the cells. Recently, elevated levels of oncostatin M (OSM) have been reported in the bronchoalveolar lavage fluid of a pulmonary fibrosis animal model and in patients. In this work, we aimed to prolong engrafted MSC survival and to enhance the effectiveness of pulmonary fibrosis transplantation therapy by using OSM-preconditioned MSCs...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28296343/a-genome-wide-sirna-screen-for-regulators-of-tumor-suppressor-p53-activity-in-human-non-small-lung-cancer-cells-identifies-components-of-the-rna-splicing-machinery-as-targets-for-anticancer-treatment
#17
Ellen Siebring-van Olst, Maxime Blijlevens, Renee X de Menezes, Ida H van der Meulen-Muileman, Egbert F Smit, Victor W van Beusechem
Reinstating wild-type tumor suppressor p53 activity could be a valuable option for the treatment of cancer. To contribute to development of new treatment options for non-small cell lung cancer (NSCLC), we performed genome-wide siRNA screens for determinants of p53 activity in NSCLC cells. We identified many genes not previously known to be involved in regulating p53 activity. Silencing p53 pathway inhibitor genes was associated with loss of cell viability. The largest functional gene cluster influencing p53 activity was mRNA splicing...
March 13, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28294357/expression-of-factors-involved-in-dental-pulp-physiopathological-processes-by-nemotic-human-pulpal-fibroblasts
#18
J Le Clerc, S Tricot-Doleux, P Pellen-Mussi, M Pérard, S Jeanne, F Pérez
AIM: To investigate in human pulp fibroblasts (HDPF) the expression of factors involved in dental pulp physiopathological processes and in an experimental model of cell activation called nemosis, and to compare the behaviour of pulp cell activation with sound lung fibroblasts MRC5, employed as a reference model for nemosis. METHODOLOGY: Nemotic response was induced in 3-dimensional cultures of HDPF and lung fibroblasts. The expressions of molecules involved in physiological (alkaline phosphatase, type I collagen) and in inflammatory processes (IL-6, CXCL8, CCL20, COX-2) were studied using real-time PCR...
March 10, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28293555/second-line-treatment-of-non-small-cell-lung-cancer-clinical-pathological-and-molecular-aspects-of-nintedanib
#19
REVIEW
Luis Corrales, Amanda Nogueira, Francesco Passiglia, Angela Listi, Christian Caglevic, Marco Giallombardo, Luis Raez, Edgardo Santos, Christian Rolfo
Lung carcinoma is the leading cause of death by cancer in the world. Nowadays, most patients will experience disease progression during or after first-line chemotherapy demonstrating the need for new, effective second-line treatments. The only approved second-line therapies for patients without targetable oncogenic drivers are docetaxel, gemcitabine, pemetrexed, and erlotinib and for patients with target-specific oncogenes afatinib, osimertinib, crizotinib, alectinib, and ceritinib. In recent years, evidence on the role of antiangiogenic agents have been established as important and effective therapeutic targets in non-small cell lung cancer (NSCLC)...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28293547/proinflammatory-response-induced-by-newcastle-disease-virus-in-tumor-and-normal-cells
#20
Teridah Ernala Ginting, Jeremiah Suryatenggara, Salomo Christian, George Mathew
PURPOSE: To investigate the specific role of immune responses induced by lentogenic Newcastle disease virus (NDV) for its antitumor effect. MATERIALS AND METHODS: NDV LaSota strain was used to infect the following human cells: non-small cell lung carcinoma (A549), glioblastoma (U87MG and T98G), mammary gland adenocarcinoma (MCF7 and MDA-MB-453), hepatocellular carcinoma (Huh7), transformed embryonic kidney cells (HEK293), primary monocytes, lung fibroblast (HF19), skin fibroblast (NB1RGB) and rat astroglia (RCR-1) at 0...
2017: Oncolytic Virotherapy
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