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https://www.readbyqxmd.com/read/28098868/microrna-187-promotes-growth-and-metastasis-of-gastric-cancer-by-inhibiting-foxa2
#1
Cong Li, Sumei Lu, Yubin Shi
MicroRNAs (miRNAs) play an active role in the pathogenesis of gastric cancer. The expression and biological function for miR-187 in gastric cancer remains unknow. In the present study, we demonstrated that miR-187 expression was increased in gastric cancer (GC) tissues and cells. Increased expression level of miR-187 was associated with adverse clinical features including tumor size, lymph metastasis and TNM stage, and decreased overall survival and disease-free survival of GC patients. Functionally, overexpression miR-187 could promote while inhibition of miR-187 could suppress, the proliferation, migration and invasion of GC cells in vitro...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098761/pancreatic-neuroendocrine-neoplasms-basic-biology-current-treatment-strategies-and-prospects-for-the-future
#2
REVIEW
Akihiro Ohmoto, Hirofumi Rokutan, Shinichi Yachida
Pancreatic neuroendocrine neoplasms (pNENs) are rare tumors accounting for only 1%-2% of all pancreatic tumors. pNENs are pathologically heterogeneous and are categorized into three groups (neuroendocrine tumor: NET G1, NET G2; and neuroendocrine carcinoma: NEC) on the basis of the Ki-67 proliferation index and the mitotic count according to the 2010 World Health Organization (WHO) classification of gastroenteropancreatic NENs. NEC in this classification includes both histologically well-differentiated and poorly differentiated subtypes, and modification of the WHO 2010 classification is under discussion based on genetic and clinical data...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098570/preferential-localization-of-met-expression-at-the-invasion-front-and-in-spreading-cells-through-air-spaces-in-non-small-cell-lung-carcinomas
#3
Camille Lapère, Alexis B Cortot, Valérie Grégoire, Vincent Cockenpot, David Tulasne, Marie-Christine Copin
The involvement of the HGF/MET pathway in acquisition of an invasive phenotype in non-small cell lung carcinomas (NSCLCs) suggests that MET inhibitors might prove effective against these cancers, but clinical trials have yielded conflicting results. The aim of our study was to evaluate how intratumoral heterogeneity (ITH) of MET staining affects the determination of MET status for therapeutic purposes. We analyzed 64 NSCLC samples, including 33 adenocarcinomas (ADCs) and 31 squamous cell carcinomas (SCCs). We used immunohistochemistry to detect MET and phospho-MET on whole slides and determined the MET SP44 immunoscore and the H-score...
January 16, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28096685/the-role-of-microrna-21-in-predicting-brain-metastases-from-non-small-cell-lung-cancer
#4
Jing Dong, Zhi Zhang, Tao Gu, Shu-Feng Xu, Li-Xin Dong, Xin Li, Bao-Hong Fu, Zhan-Zhao Fu
OBJECTIVE: This study aimed at exploring the role of microRNA-21 (miR-21) in predicting brain metastases (BM) from non-small cell lung cancer (NSCLC). METHODS: A total of 132 NSCLC patients, including 68 patients with BM and 64 patients without BM, were included in the study. NSCLC cells were collected and assigned to the inhibitor (IN) group, the mock group, and the negative control (NC) group. The quantitative real-time polymerase chain reaction assay was used to detect the miR-21 expression...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28096683/clinicopathological-and-immunohistochemical-features-of-lung-invasive-mucinous-adenocarcinoma-based-on-computed-tomography-findings
#5
Katsuhiko Shimizu, Riki Okita, Shinsuke Saisho, Ai Maeda, Yuji Nojima, Masao Nakata
BACKGROUND: We performed an analysis to clarify differences in clinicopathological and molecular features of lung invasive mucinous adenocarcinoma (IMA) based on computed tomography (CT) findings and their impact on prognosis. PATIENTS AND METHODS: On the basis of CT findings, we divided lung IMA into three subtypes: solid, bubbling, and pneumonic. We then investigated differences in clinicopathological characteristics, prognosis, and the expressions of well-identified biomarkers, including cyclooxygenase-2 (Cox-2), excision repair cross-complementation group 1 (ERCC1), ribonucleotide reductase M1 (RRM1), class III beta-tubulin, thymidylate synthase (TS), secreted protein acidic and rich in cysteine (SPARC), programmed cell death-1 ligand-1 (PD-L1), and epidermal growth factor receptor mutation, among the three subtypes...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28096201/serum-c-peptide-total-and-high-molecular-weight-adiponectin-and-pancreatic-cancer-do-associations-differ-by-smoking
#6
Leticia M Nogueira, Christina C Newton, Michael N Pollak, Debra T Silverman, Demetrius Albanes, Satu Männistö, Stephanie J Weinstein, Eric J Jacobs, Rachael Z Stolzenberg-Solomon
BACKGROUND: Studies examining associations between circulating concentrations of C-peptide and total adiponectin, two biomarkers related to obesity and insulin secretion and sensitivity and pancreatic ductal adenocarcinoma (PDA) risk have shown inconsistent results and included limited numbers of smokers. METHODS: We examined associations of these biomarkers and high molecular weight (HMW) adiponectin with PDA, overall, and by smoking status. We conducted a pooled nested case-control analysis in 3 cohorts (Prostate, Lung, Colorectal, and Ovarian Cancer Trial, Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study, and Cancer Prevention Study-II), with 758 cases (435 current smokers) and 1052 controls (531 smokers) matched by cohort, age, sex, race, blood draw date and follow-up time...
January 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28095951/simulated-microgravity-effects-on-nonsmall-cell-lung-cancer-cell-proliferation-and-migration
#7
Jae Ho Chung, Chi Bum Ahn, Kuk Hui Son, Eunjue Yi, Ho Sung Son, Han-Sung Kim, Sung Ho Lee
BACKGROUND: Despite improvements in medical technology, lung cancer metastasis remains a global health problem. The effects of microgravity on cell morphology, structure, functions, and their mechanisms have been widely studied; however, the biological effects of simulated microgravity on the interaction between cells and its eventual influence on the characteristics of cancer cells are yet to be discovered. We examined the effects of simulated microgravity on the metastatic ability of different lung cancer cells using a random positioning machine...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28094581/early-immunopathological-events-in-acute-model-of-mycobacterial-hypersensitivity-pneumonitis-in-mice
#8
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/28092948/oral-cell-dna-adducts-as-potential-biomarkers-for-lung-cancer-susceptibility-in-cigarette-smokers
#9
Stephen S Hecht
This perspective considers the use of oral cell DNA adducts, together with exposure and genetic information, to potentially identify those cigarette smokers at highest risk for lung cancer, so that appropriate preventive measures could be initiated at a relatively young age before too much damage has been done. There are now well established and validated analytical methods for the quantitation of urinary and serum metabolites of tobacco smoke toxicants and carcinogens. These metabolites provide a profile of exposure and in some cases lung cancer risk, but they do not yield information on the critical DNA damage parameter that leads to mutations in cancer growth control genes such as KRAS and TP53...
January 17, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28092945/nicotine-metabolism-and-smoking-ethnic-differences-in-the-role-of-p450-2a6
#10
Sharon E Murphy
Nicotine is the primary addictive agent in tobacco, and P450 2A6 (gene name: CYP2A6) is the primary catalyst of nicotine metabolism. It was proposed more than 20 years ago that individuals who metabolize nicotine poorly would smoke less, either fewer cigarettes per day or less intensely per cigarette, compared to smokers who metabolize nicotine more efficiently. These poor metabolizers would then be less likely to develop lung cancer due to their lower exposure to the many carcinogens delivered with nicotine in each puff of smoke...
January 17, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28090288/expression-profiling-elucidates-a-molecular-gene-signature-for-pulmonary-hypertension-in-sarcoidosis
#11
Sunit Singla, Tong Zhou, Kamran Javaid, Taimur Abbasi, Nancy Casanova, Wei Zhang, Shwu-Fan Ma, Michael S Wade, Imre Noth, Nadera J Sweiss, Joe G N Garcia, Roberto F Machado
Pulmonary hypertension (PH), when it complicates sarcoidosis, carries a poor prognosis, in part because it is difficult to detect early in patients with worsening respiratory symptoms. Pathogenesis of sarcoidosis occurs via incompletely characterized mechanisms that are distinct from the mechanisms of pulmonary vascular remodeling well known to occur in conjunction with other chronic lung diseases. To address the need for a biomarker to aid in early detection as well as the gap in knowledge regarding the mechanisms of PH in sarcoidosis, we used genome-wide peripheral blood gene expression analysis and identified an 18-gene signature capable of distinguishing sarcoidosis patients with PH (n = 8), sarcoidosis patients without PH (n = 17), and healthy controls (n = 45)...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28088881/an-industry-update-the-latest-developments-in-therapeutic-delivery
#12
Iain Simpson
This Industry Update covers the period from 1 October through to 31 October 2016, and is based on information sourced from company press releases, scientific literature, patents and various news websites. The month saw several news items covering drug-delivery devices, including a new sensor to monitor and support the use of inhalers; launch in the UK of a new autoinjector for Cimzia(®), UCB's rheumatoid arthritis drug; and approval of Roche's Lucentis(®) in a prefilled syringe. Research was also published to show the value of continuous blood pressure monitoring in dementia management...
February 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28088789/gprc5a-knockout-mouse-lung-epithelial-cells-predicts-ceruloplasmin-lipocalin-2-and-periostin-as-potential-biomarkers-at-early-stages-of-lung-tumorigenesis
#13
Beibei Sun, Wenzheng Guo, Song Hu, Feng Yao, Keke Yu, Jie Xing, Ronghua Wang, Hongyong Song, Yueling Liao, Tong Wang, Pengfei Jiang, Baohui Han, Jiong Deng
Lung cancer is the leading cause of cancer death. As most of lung cancer patients were diagnosed with the advanced stage, early detection is considered as the most effective strategy to reduce high mortality. Thus, it is desirable to identify specific biomarkers at early stages of lung tumorigenesis. GPRC5A is a lung tumor suppressor gene. GPRC5A deficiency is linked to lung cancer development. We hyposthesized that, dysregulated gene expression that results from Gprc5a deficiency may provide potential biomarkers at early stages of lung tumorigenesis...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088736/lncrna-ccat2-promotes-tumorigenesis-by-over-expressed-pokemon-in-non-small-cell-lung-cancer
#14
Zhihong Zhao, Ju Wang, Shengfa Wang, Hao Chang, Tiewa Zhang, Junfeng Qu
BACKGROUND: Non-small cell lung cancer (NSCLC) remains one of the most important death-related diseases, with poor effective diagnosis and less therapeutic biomarkers. LncRNA colon cancer-associated transcript 2 (CCAT2) was identified as an oncogenic lncRNA and over-expressed in many tumor cells. The aims of this study were to detect the correlation between CCAT2 and its regulatory genes and then explore the potential mechanism between them in NSCLC. METHODS: In this study, qRT-PCR was used to detect CCAT2, Pokemon and p21 expression...
January 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28088513/an-immunogram-for-the-cancer-immunity-cycle-towards-personalized-immunotherapy-of-lung-cancer
#15
Takahiro Karasaki, Kazuhiro Nagayama, Hideki Kuwano, Jun-Ichi Nitadori, Masaaki Sato, Masaki Anraku, Akihiro Hosoi, Hirokazu Matsushita, Yasuyuki Morishita, Kosuke Kashiwabara, Masaki Takazawa, Osamu Ohara, Kazuhiro Kakimi, Jun Nakajima
INTRODUCTION: The interaction of immune cells and cancer cells shapes the immunosuppressive tumor microenvironment. For successful cancer immunotherapy, comprehensive knowledge of anti-tumor immunity as a dynamic spacio-temporal process is required for each individual patient. To this end, we developed an immunogram for the cancer-immunity cycle using next-generation sequencing. METHODS: Whole-exome sequencing and RNA-Seq was performed in 20 non-small cell lung cancer patients (12 adenocarcinoma, 7 squamous cell carcinoma, and 1 large cell neuroendocrine carcinoma)...
January 11, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28087642/stxbp4-drives-tumor-growth-and-is-associated-with-poor-prognosis-through-pdgf-receptor-signaling-in-lung-squamous-cell-carcinoma
#16
Yukihiro Otaka, Susumu Rokudai, Kyoichi Kaira, Michiru Fujieda, Ikuko Horikoshi, Reika Kawabata, Shinji Yoshiyama, Takehiko Yokobori, Yoichi Ohtaki, Kimihiro Shimizu, Tetsunari Oyama, Jun'ichi Tamura, Carol Prives, Masahiko Nishiyama
PURPOSE: Expression of the ΔN isoform of p63 (ΔNp63) is a diagnostic marker highly specific for lung squamous cell carcinoma (SCC). We previously found that Syntaxin Binding Protein 4 (STXBP4) regulates ΔNp63 ubiquitination, suggesting that STXBP4 may also be a SCC biomarker. To address this issue, we investigated the role of STXBP4 expression in SCC biology and the impact of STXBP4 expression on SCC prognosis. EXPERIMENTAL DESIGN: We carried out a clinicopathological analysis of STXBP4 expression in 87 lung SCC patients...
January 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28081127/transient-in-vivo-resistance-mechanisms-of-burkholderia-pseudomallei-to-ceftazidime-and-molecular-markers-for-monitoring-treatment-response
#17
Jason E Cummings, Richard A Slayden
Much is known about the mode of action of drugs and resistance mechanisms under laboratory growth conditions, but research on the bacterial transcriptional response to drug pressure in vivo or efficacious mode of action and transient resistance mechanisms of clinically employed drugs is limited. Accordingly, to assess active alternative metabolism and transient resistance mechanisms, and identify molecular markers of treatment response, the in vivo transcriptional response of Burkholderia pseudomallei 1026b to treatment with ceftazidime in infected lungs was compared to the in vitro bacterial response in the presence of drug...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28077810/increased-expression-of-long-non-coding-rna-bcar4-is-predictive-of-poor-prognosis-in-patients-with-non-small-cell-lung-cancer
#18
Jianhua Gong, Han Zhang, Li He, Lixin Wang, Jipeng Wang
Lung cancer is the most common human cancer, and the majority of lung cancer cases are categorized as non-small cell lung cancer (NSCLC). Long non-coding RNAs (lncRNAs) play key roles in the development and progression of human cancers. LncRNA breast cancer anti-estrogen resistance 4 (BCAR4) has been identified as an oncogenic lncRNA involved in the progression of breast cancer and osteosarcoma. However, the clinical significance of the lncRNA BCAR4 in NSCLC remains largely unclear. In the present study, real-time quantitative reverse transcriptase-polymerase chain reaction was used to examine the relative level of lncRNA BCAR4 in 68 cases of NSCLC tissues and their adjacent non-tumor tissues...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28076325/identification-of-long-noncoding-rnas-for-the-detection-of-early-stage-lung-squamous-cell-carcinoma-by-microarray-analysis
#19
Zule Cheng, Yanan Bai, Ping Wang, Zhenhua Wu, Lin Zhou, Ming Zhong, Qinghui Jin, Jianlong Zhao, Hailei Mao, Hongju Mao
The aberrant expressions of long noncoding RNAs have been reported in numerous cancers, which have facilitated the cancer diagnosis. However, the expression profile of lncRNAs in early stage lung squamous cell carcinoma has not been well discussed. The present study aimed to examine the expression profile of lncRNAs in early stage lung squamous cell carcinoma and identify lncRNA biomarkers for diagnosis. Through high-throughput lncRNA microarray, we screened thousands of aberrantly expressed lncRNAs and mRNAs in early stage lung squamous cell carcinoma tissues compared to their corresponding adjacent nontumorous tissues...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28075383/soluble-fibre-meal-challenge-reduces-airway-inflammation-and-expression-of-gpr43-and-gpr41-in-asthma
#20
Isabel Halnes, Katherine J Baines, Bronwyn S Berthon, Lesley K MacDonald-Wicks, Peter G Gibson, Lisa G Wood
Short chain fatty acids (SCFAs) are produced following the fermentation of soluble fibre by gut bacteria. In animal models, both dietary fibre and SCFAs have demonstrated anti-inflammatory effects via the activation of free fatty acid receptors, such as G protein-coupled receptor 41 and 43 (GPR41 and GPR43). This pilot study examined the acute effect of a single dose of soluble fibre on airway inflammation-including changes in gene expression of free fatty acid receptors-in asthma. Adults with stable asthma consumed a soluble fibre meal (n = 17) containing 3...
January 10, 2017: Nutrients
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