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Lung Repair

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https://www.readbyqxmd.com/read/28930935/acute-lung-injury-and-repair-scientific-fundamentals-and-methods
#1
Jay Berger, Ellise Delphin
No abstract text is available yet for this article.
September 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28928874/ercc1_202-is-a-prognostic-biomarker-in-advanced-stage-non-small-cell-lung-cancer-patients-treated-with-platinum-based-chemotherapy
#2
Xiyong Wang, Xiaoli Zhu, Hongming Zhang, Xiaobo Fan, Xiulei Xue, Yan Chen, Chenbo Ding, Jianwen Zhao, Guoqiu Wu
Purpose: To develop a qPCR method to examine the 202 isoform of excision repair cross-complementation group 1 (ERCC1_202) and to evaluate its clinical utility as a predictive biomarker for platinum-based chemotherapy in non-small cell lung cancer (NSCLC). Methods: The relative complementary DNA (cDNA) quantification for ERCC1_202 was conducted using a fluorescence-based, real-time detection method and β-actin was used as a reference gene. Results: A strong correlation was observed between ERCC1_202 mRNA and ERCC1 mRNA levels in NSCLC cells (P < 0...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927101/effects-of-p38mapk-mediated-excision-repair-cross-complementation-1-expression-on-prognosis-of-patients-with-non-small-cell-lung-cancer
#3
Dan He, Xiaomei Ma, Zhenhua Wu, Yang Wang, Shuyuan Zhao, Feng Han, Wei Sun
The present study aimed to investigate the effects of excision repair cross-complementation 1 (ERCC1) expression on the prognosis of patients with non-small cell lung cancer (NSCLC). A total of 140 patients with NSCLC who underwent radical resection were included. Immunohistochemical staining was performed on the tissue specimens obtained from patients and correlation analysis was used to determine the association between ERCC1 expression and clinicopathological characteristics. Cell proliferation was assessed using an MTT assay...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924235/single-nucleotide-polymorphisms-of-nucleotide-excision-repair-pathway-are-significantly-associated-with-outcomes-of-platinum-based-chemotherapy-in-lung-cancer
#4
Xiao Song, Shiming Wang, Xuan Hong, Xiaoying Li, Xueying Zhao, Cong Huai, Hongyan Chen, Zhiqiang Gao, Ji Qian, Jiucun Wang, Baohui Han, Chunxue Bai, Qiang Li, Junjie Wu, Daru Lu
Nucleotide excision repair (NER) pathway plays critical roles in repairing DNA disorders caused by platinum. To comprehensively understand the association between variants of NER and clinical outcomes of platinum-based chemotherapy, 173 SNPs in 27 genes were selected to evaluate association with toxicities and efficiency in 1004 patients with advanced non-small cell lung cancer. The results showed that consecutive significant signals were observed in XPA, RPA1, POLD1, POLD3. Further subgroup analysis showed that GTF2H4 presented consecutive significant signals in clinical benefit among adenocarcimoma...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924136/a-case-of-tracheobronchomalacia-mimicking-acute-pulmonary-embolism
#5
Stefani M Schwartz, Katherine J Greco, Venugopal Reddy
BACKGROUND Pulmonary embolism is a common acute postoperative complication and is associated with 100,000 deaths per year in the USA. Tracheobronchomalacia is an uncommon condition, which presents with similar symptoms to pulmonary embolism, including hypoxemia, tachycardia, and shortness of breath. We describe a case of a patient who presented with postoperative pulmonary symptoms that were initially thought to be due to pulmonary embolism. However, following imaging investigations these symptoms were found to be due to tracheobronchomalacia...
September 19, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28922454/surgery-for-t4-lung-cancer-invading-the-thoracic-aorta-do-we-push-the-limits
#6
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/28922348/stem-cell-biology-and-regenerative-medicine-for-neonatal-lung-diseases
#7
REVIEW
Martin Kang, Bernard Thébaud
Lung diseases remain one of the main causes of morbidity and mortality in neonates. Cell therapy and regenerative medicine have the potential to revolutionize the management of life-threatening and debilitating lung diseases that currently lack effective treatments. Over the past decade, the repair capabilities of stem/progenitor cells has been harnessed to prevent/rescue lung damage in experimental neonatal lung diseases. Mesenchymal stromal cells and amnion epithelial cells exert pleiotropic effects and represent ideal therapeutic cells for bronchopulmonary dysplasia, a multifactorial disease...
September 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28921800/initial-testing-stage-1-of-m6620-formerly-vx-970-a-novel-atr-inhibitor-alone-and-combined-with-cisplatin-and-melphalan-by-the-pediatric-preclinical-testing-program
#8
Raushan T Kurmasheva, Dias Kurmashev, C Patrick Reynolds, Min Kang, Jianwrong Wu, Peter J Houghton, Malcolm A Smith
BACKGROUND: M6620 is a novel inhibitor of the DNA damage repair enzyme ATR, and has potentiated the activity of cisplatin and irinotecan in non-small cell lung cancer and colon cancer xenografts, respectively. PROCEDURES: M6620 was tested in vitro at concentrations ranging from 1.0 nM to 10.0 μM and at 75 nM in combination with cisplatin or melphalan. M6620 was tested against 24 solid tumor xenografts alone and in combination with cisplatin. Cisplatin was administered intraperitoneally on days 1 and 8 at a dose of 5 mg/kg...
September 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28918442/the-role-of-periostin-in-lung-fibrosis-and-airway-remodeling
#9
REVIEW
David N O'Dwyer, Bethany B Moore
Periostin is a protein that plays a key role in development and repair within the biological matrix of the lung. As a matricellular protein that does not contribute to extracellular matrix structure, periostin interacts with other extracellular matrix proteins to regulate the composition of the matrix in the lung and other organs. In this review, we discuss the studies exploring the role of periostin to date in chronic respiratory diseases, namely asthma and idiopathic pulmonary fibrosis. Asthma is a major health problem globally affecting millions of people worldwide with significant associated morbidity and mortality...
September 16, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28916766/stimulatory-secretions-of-airway-epithelial-cells-accelerate-early-repair-of-tracheal-epithelium
#10
Egi Kardia, Rafeezul Mohamed, Badrul Hisham Yahaya
Airway stem/progenitor epithelial cells (AECs) are notable for their differentiation capacities in response to lung injury. Our previous finding highlighted the regenerative capacity of AECs following transplantation in repairing tracheal injury and reducing the severity of alveolar damage associated acute lung injury in a rabbit model. The goal of this study is to further investigate the potential of AECs to re-populate the tracheal epithelium and to study their stimulatory effect on inhibiting pro-inflammatory cytokines, epithelial cell migration and proliferation, and epithelial-to-mesenchymal transition (EMT) process following tracheal injury...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915585/time-dependent-modulation-of-tumor-radiosensitivity-by-a-pan-hdac-inhibitor-abexinostat
#11
Sofia Rivera, Céline Leteur, Frédérique Mégnin, Frédéric Law, Isabelle Martins, Ioana Kloos, Stéphane Depil, Nazanine Modjtahedi, Jean Luc Perfettini, Christophe Hennequin, Eric Deutsch
Despite prominent role of radiotherapy in lung cancer management, there is an urgent need for strategies increasing therapeutic efficacy. Reversible epigenetic changes are promising targets for combination strategies using HDAC inhibitors (HDACi). Here we evaluated on two NSCLC cell lines, the antitumor effect of abexinostat, a novel pan HDACi combined with irradiation in vitro in normoxia and hypoxia, by clonogenic assays, demonstrating that abexinostat enhances radiosensitivity in a time dependent way with mean SER10 between 1...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28910321/identification-of-transforming-growth-factor-beta-regulated-micrornas-and-the-microrna-targetomes-in-primary-lung-fibroblasts
#12
Jennie Ong, Wim Timens, Vijay Rajendran, Arjan Algra, Avrum Spira, Marc E Lenburg, Joshua D Campbell, Maarten van den Berge, Dirkje S Postma, Anke van den Berg, Joost Kluiver, Corry-Anke Brandsma
BACKGROUND: Lung fibroblasts are involved in extracellular matrix homeostasis, which is mainly regulated by transforming growth factor-beta (TGF-β), and are therefore crucial in lung tissue repair and remodeling. Abnormal repair and remodeling has been observed in lung diseases like COPD. As miRNA levels can be influenced by TGF-β, we hypothesized that TGF-β influences miRNA expression in lung fibroblasts, thereby affecting their function. MATERIALS AND METHODS: We investigated TGF-β1-induced miRNA expression changes in 9 control primary parenchymal lung fibroblasts using miRNA arrays...
2017: PloS One
https://www.readbyqxmd.com/read/28905450/nrf2-transfection-enhances-the-efficacy-of-human-amniotic-mesenchymal-stem-cells-to-repair-lung-injury-induced-by-lipopolysaccharide
#13
Shouqin Zhang, Wei Jiang, Lijie Ma, Yuhao Liu, Xiangyu Zhang, Sheng Wang
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinical emergencies with no effective pharmaceutical treatment. This study aims to determine the protective effects of Nrf2-transfected human amniotic mesenchymal stem cells (hAMSCs) against lipopolysaccharide (LPS)-induced lung injury in mice. hAMSCs stably transfected with Nrf2 or green fluorescent protein control were transplanted into male C57BL/6 mice via the tail vein 4 h after intratracheal instillation of LPS. At 3, 7 and 14 days after cell transplantation, total lung injury score (the Smith score) was determined by hematoxylin and eosin staining...
September 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28903417/disruption-of-dna-repair-in-cancer-cells-by-ubiquitination-of-a-destabilising-dimerization-domain-of-nucleotide-excision-repair-protein-ercc1
#14
Lanlan Yang, Ann-Marie Ritchie, David W Melton
DNA repair pathways present in all cells serve to preserve genome stability, but in cancer cells they also act reduce the efficacy of chemotherapy. The endonuclease ERCC1-XPF has an important role in the repair of DNA damage caused by a variety of chemotherapeutic agents and there has been intense interest in the use of ERCC1 as a predictive marker of therapeutic response in non-small cell lung carcinoma, squamous cell carcinoma and ovarian cancer. We have previously validated ERCC1 as a therapeutic target in melanoma, but all small molecule ERCC1-XPF inhibitors reported to date have lacked sufficient potency and specificity for clinical use...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28900382/immunization-enhances-the-natural-antibody-repertoire
#15
Dylan Beinart, Daniel Ren, Cinthia Pi, Susan Poulton, Zoie E Holzknecht, Chelsea Swanson, William Parker
The role of immunization in the production of antibodies directed against immunogens is widely appreciated in laboratory animals and in humans. However, the role of immunization in the development of "natural antibodies" has not been investigated. Natural antibodies are those antibodies present without known history of infection or immunization, and react to a wide range of targets, including "cryptic" self-antigens that are exposed upon cell death. In this study, the ability of immunization to elicit the production of natural antibodies in laboratory rats was evaluated...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28898446/contradictory-effects-of-mitochondria-and-non-mitochondria-targeted-antioxidants-on-hepatocarcinogenesis-by-altering-dna-repair
#16
Bibo Wang, Jing Fu, Ting Yu, An Xu, Wenhao Qin, Zhishi Yang, Yao Chen, Hongyang Wang
Conflicting effects of antioxidant supplementation on cancer prevention or promotion is of great concern to healthy people and cancer patients. Despite recent studies about antioxidants accelerating the progression of lung cancer and melanoma, it does not fully deny antioxidants for cancer prevention. Both tumor and antioxidants types influence the actual efficacy. However, little is known about the impact of different types of antioxidants on primary hepatocellular carcinoma (HCC), including non-mitochondrial- and mitochondrial-targeted antioxidants...
September 12, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28895780/mir-300-regulates-cellular-radiosensitivity-through-targeting-p53-and-apaf1-in-human-lung-cancer-cells
#17
Jinpeng He, Xiu Feng, Junrui Hua, Li Wei, Zhiwei Lu, Wenjun Wei, Hui Cai, Bing Wang, Wengui Shi, Nan Ding, He Li, Yanan Zhang, Jufang Wang
microRNAs (miRNAs) play a crucial role in mediation of the cellular sensitivity to ionizing radiation (IR). Previous studies revealed that miR-300 was involved in the cellular response to IR or chemotherapy drug. However, whether miR-300 could regulate the DNA damage responses induced by extrinsic genotoxic stress in human lung cancer and the underlying mechanism remain unknown. In this study, the expression of miR-300 was examined in lung cancer cells treated with IR, and the effects of miR-300 on DNA damage repair, cell cycle arrest, apoptosis and senescence induced by IR were investigated...
September 12, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28895301/early-leaflet-thrombosis-complicating-transcatheter-implantation-of-a-sapien-3-valve-in-a-native-right-ventricular-outflow-tract
#18
Mounir Riahi, Philipp Blanke, John Webb, Ronald G Carere
A 59-year-old female with Tetralogy of Fallot had a previous complete repair with RVOT patch enlargement. She developed subsequent severe symptomatic (NYHA III) pulmonary regurgitation with severe RV dilatation. She had a concomitant interstitial lung disease secondary to hypersensitivity pneumonitis that precluded her from cardiac surgery. After preprocedural assessment using computed tomography, echocardiography and invasive angiography we decided to implant a 29 mm Edwards Sapien 3 valve without pre-stenting...
September 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28894165/evolution-analysis-of-heterogeneous-non-small-cell-lung-carcinoma-by-ultra-deep-sequencing-of-the-mitochondrial-genome
#19
Wafa Amer, Csaba Toth, Erik Vassella, Jeannine Meinrath, Ulrike Koitzsch, Anne Arens, Jia Huang, Hannah Eischeid, Alexander Adam, Reinhard Buettner, Andreas Scheel, Stephan C Schaefer, Margarete Odenthal
Accurate assessment of tumour heterogeneity is an important issue that influences prognosis and therapeutic decision in molecular pathology. Due to the shortage of protective histones and a limited DNA repair capacity, the mitochondrial (mt)-genome undergoes high variability during tumour development. Therefore, screening of mt-genome represents a useful molecular tool for assessing precise cell lineages and tracking tumour history. Here, we describe a highly specific and robust multiplex PCR-based ultra-deep sequencing technology for analysis of the whole mt-genome (wmt-seq) on low quality-DNA from formalin-fixed paraffin-embedded tissues...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28891354/brca2-protects-mammalian-cells-from-heat-shock
#20
Yosuke Nakagawa, Atsuhisa Kajihara, Akihisa Takahashi, Akiho S Murata, Masaya Matsubayashi, Soichiro S Ito, Ichiro Ota, Takahiko Nakagawa, Masatoshi Hasegawa, Tadaaki Kirita, Takeo Ohnishi, Eiichiro Mori
PURPOSE: Heat shock induces DNA double-strand breaks (DSBs) in mammalian cells. Mammalian cells are capable of repairing DSBs by utilising the homologous recombination (HR) pathway. Breast cancer susceptibility gene 2 (BRCA2) is known to regulate the HR pathway. Here, we investigate the role of BRCA2 in repairing DNA damage induced by heat shock. MATERIALS AND METHODS: Chinese hamster lung fibroblast cell lines and human tongue squamous cell carcinoma SAS cells were used...
September 10, 2017: International Journal of Hyperthermia
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