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https://www.readbyqxmd.com/read/28434943/epigenetic-pathways-in-human-disease-the-impact-of-dna-methylation-on-stress-related-pathogenesis-and-current-challenges-in-biomarker-development
#1
M Austin Argentieri, Sairaman Nagarajan, Bobak Seddighzadeh, Andrea A Baccarelli, Alexandra E Shields
HPA axis genes implicated in glucocorticoid regulation play an important role in regulating the physiological impact of social and environmental stress, and have become a focal point for investigating the role of glucocorticoid regulation in the etiology of disease. We conducted a systematic review to critically assess the full range of clinical associations that have been reported in relation to DNA methylation of CRH, CRH-R1/2, CRH-BP, AVP, POMC, ACTH, ACTH-R, NR3C1, FKBP5, and HSD11β1/2 genes in adults...
April 4, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28433217/clinical-significance-of-prognostic-nutritional-index-after-surgical-treatment-in-lung-cancer
#2
Satoru Okada, Junichi Shimada, Daishiro Kato, Hiroaki Tsunezuka, Satoshi Teramukai, Masayoshi Inoue
BACKGROUND: The prognostic nutritional index (PNI), calculated as 10 × serum albumin (g/dL) + 0.005 × total lymphocyte count (cells/mm(3)), can reportedly predict postoperative complications and prognosis for various types of malignancy. However, the clinical significance and prognostic value of the PNI for both short- and long-term outcomes remains uncertain in patients with lung cancer. METHODS: We retrospectively reviewed 248 patients with completely resected non-small cell lung cancer (NSCLC)...
April 19, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431392/characterization-of-aurora-a-and-its-impact-on-the-effect-of-cisplatin-based-chemotherapy-in-patients-with-non-small-cell-lung-cancer
#3
Peng Kuang, Zuhua Chen, JiaYuan Wang, Zhentao Liu, Jingyuan Wang, Jing Gao, Lin Shen
BACKGROUND AND OBJECTIVE: Aurora A, as a member of serine/threonine kinase family and a common characteristic of epithelial cancers, plays a critical role in cell mitosis. However, the clinical significance of Aurora A in non-small cell lung cancer (NSCLC) remains undetermined. METHODS: The expression of Aurora A in NSCLC and paired normal adjacent lung tissues was determined by immunohistochemistry, Western blot, and reverse transcriptase polymerase chain reaction...
April 18, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28430623/clinical-efficacy-of-icotinib-in-lung-cancer-patients-with-different-egfr-mutation-status-a-meta-analysis
#4
REVIEW
Jian Qu, Ya-Nan Wang, Ping Xu, Da-Xiong Xiang, Rui Yang, Wei Wei, Qiang Qu
Icotinib is a novel and the third listed epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs), which exerts a good anti-tumor efficacy on non-small cell lung cancer (NSCLC). The efficacy of EGFR-TKIs has been shown to be associated with the EGFR mutation status, especially exon 19 deletion (19Del) and exon 21 L858R mutation. Therefore, a meta-analysis was performed to assess the efficacy of icotinib in NSCLC patients harboring EGFR mutations (19Del or L858R) and wild type (19Del and L858R loci wild type)...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429357/inhibition-of-pulmonary-carcinoma-proliferation-or-metastasis-of-mir-218-via-down-regulating-cdcp1-expression
#5
X-J Zeng, Y-H Wu, M Luo, P-G Cong, H Yu
OBJECTIVE: Pulmonary carcinoma is one common malignant tumor with a high risk of recurrence and metastasis. Non-small cell lung cancer (NSCLC) is the most common subtype. As one tumor biomarker, microRNA (miR) has tissue sensitivity and can facilitate oncogene or inhibit tumor suppressor gene. MiR-218 has abnormal expression and can work as one molecular marker for tumors. However, its expression and function mechanism in lung cancer cells have not been fully illustrated. MATERIALS AND METHODS: In vitro cultured pulmonary adenoma A549 cells and normal bronchial epithelial cell line 16HBE were tested for miR-218 expression...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28427247/molecular-testing-of-lung-cancers
#6
Hyo Sup Shim, Yoon-La Choi, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Mee Sook Roh, Tae-Jung Kim, Seung Yeon Ha, Jin-Haeng Chung, Se Jin Jang, Geon Kook Lee
Targeted therapies guided by molecular diagnostics have become a standard treatment of lung cancer. Epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) rearrangements are currently used as the best predictive biomarkers for EGFR tyrosine kinase inhibitors and ALK inhibitors, respectively. Besides EGFR and ALK, the list of druggable genetic alterations has been growing, including ROS1 rearrangements, RET rearrangements, and MET alterations. In this situation, pathologists should carefully manage clinical samples for molecular testing and should do their best to quickly and accurately identify patients who will benefit from precision therapeutics...
April 21, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28427178/prognostic-value-of-foxm1-in-solid-tumors-a-systematic-review-and-meta-analysis
#7
Lijun Li, Dang Wu, Qun Yu, Lingdi Li, Pin Wu
Accumulated studies have provided controversial evidences of the association between Forkhead Box M1 (FOXM1) expression and survival of human solid tumors. To address this inconsistency, we performed a meta-analysis with 23 studies identified from PubMed and Medline. We found elevated FOXM1-protein expression was significantly associated with worse 3-year overall survival (OS) (OR = 3.30, 95% CI = 2.56 to 4.25, P < 0.00001) 5-year OS (OR =3.35, 95% CI = 2.64 to 4.26, P < 0.00001) and 10-year OS (OR = 5...
February 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427160/biomarker-analysis-of-the-phase-3-torch-trial-for-first-line-erlotinib-versus-chemotherapy-in-advanced-non-small-cell-lung-cancer-patients
#8
Lucia Kim, Mauro Saieg, Massimo Di Maio, Ciro Gallo, Charles Butts, Fortunato Ciardiello, Ronald Feld, Dengxiao Cheng, Vittorio Gebbia, Marco Angelo Burgio, Yasmin Alam, Simona Signoriello, Antonio Rossi, Natasha Leighl, Paolo Maione, Alessandro Morabito, Geoffrey Liu, Ming-Sound Tsao, Francesco Perrone, Cesare Gridelli
BACKGROUND: The TORCH phase III trial compared the efficacy of first-line erlotinib followed by chemotherapy at progression (experimental arm) with the reverse sequence (standard arm) in unselected advanced non-small cell lung cancer (NSCLC) patients. Here we report biomarker analyses. METHODS: EGFR and KRAS mutation, expression of EGFR family members and of cMET and PTEN and EGFR and ABCG2 germline polymorphisms were tested on tumor tissue or blood samples to either confirm previously proposed predictive role or describe it in an explorative setting...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427146/microrna-200c-141-upregulates-serpinb2-to-promote-breast-cancer-cell-metastasis-and-reduce-patient-survival
#9
Tiefeng Jin, Hoe Suk Kim, Sul Ki Choi, Eun Hye Hwang, Jisu Woo, Han Suk Ryu, Kwangsoo Kim, Aree Moon, Woo Kyung Moon
The microRNA-200 (miR-200) family is associated with tumor metastasis and poor patient prognosis. We found that miR-200c/141 cluster overexpression upregulated SerpinB2 in the MDA-MB-231 triple-negative (TN) breast cancer cell line. We observed transcription factor (c-Jun, c-Fos, and FosB) upregulation, nuclear localization of c-Jun, and increased SerpinB2 promoter-directed chloramphenicol acetyltransferase activity in miR-200c/141 cluster-overexpressing cells relative to controls. Additionally, miR-124a and miR-26b, which directly target SepinB2, were downregulated compared to controls...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425640/profiling-of-the-silica-induced-molecular-events-in-lung-epithelial-cells-using-the-rna-seq-approach
#10
Judy Y W Chan, Joseph C C Tsui, Patrick T W Law, Winnie K W So, Doris Y P Leung, Michael M K Sham, Stephen K W Tsui, Carmen W H Chan
Silicosis is a prolonged, irreversible and incurable occupational disease, and there is a significant number of newly diagnosed cases every year in Hong Kong. Due to the long latency of the disease, the diagnosis can be missed until detailed clinical examination at a later stage. For a better control of this deadly disease, detailing the pro-inflammatory and fibrotic events in the macrophage would be instrumental in understanding the pathogenesis of the disease and essential for the significant biomarkers discovery...
April 20, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28424186/circulating-concentrations-of-biomarkers-and-metabolites-related-to-vitamin-status-one-carbon-and-the-kynurenine-pathways-in-us-nordic-asian-and-australian-populations
#11
Øivind Midttun, Despoina Theofylaktopoulou, Adrian McCann, Anouar Fanidi, David C Muller, Klaus Meyer, Arve Ulvik, Wei Zheng, Xiao-Ou Shu, Yong-Bing Xiang, Ross Prentice, Cynthia A Thomson, Mary Pettinger, Graham G Giles, Allison Hodge, Qiuyin Cai, William J Blot, Jie Wu, Mikael Johansson, Johan Hultdin, Kjell Grankvist, Victoria L Stevens, Marjorie L McCullough, Stephanie J Weinstein, Demetrius Albanes, Arnulf Langhammer, Kristian Hveem, Marit Næss, Howard D Sesso, J Michael Gaziano, Julie E Buring, I-Min Lee, Gianluca Severi, Xuehong Zhang, Jiali Han, Meir J Stampfer, Stephanie A Smith-Warner, Anne Zeleniuch-Jacquotte, Loic le Marchand, Jian-Min Yuan, Lesley M Butler, Woon-Puay Koh, Renwei Wang, Yu-Tang Gao, Ulrika Ericson, Emily Sonestedt, Regina G Ziegler, Neal D Freedman, Kala Visvanathan, Miranda R Jones, Caroline Relton, Paul Brennan, Mattias Johansson, Per M Ueland
Background: Circulating concentrations of biomarkers that are related to vitamin status vary by factors such as diet, fortification, and supplement use. Published biomarker concentrations have also been influenced by the variation across laboratories, which complicates a comparison of results from different studies.Objective: We robustly and comprehensively assessed differences in biomarkers that are related to vitamin status across geographic regions.Design: The trial was a cross-sectional study in which we investigated 38 biomarkers that are related to vitamin status and one-carbon and tryptophan metabolism in serum and plasma from 5314 healthy control subjects representing 20 cohorts recruited from the United States, Nordic countries, Asia, and Australia, participating in the Lung Cancer Cohort Consortium...
April 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28423699/long-non-coding-rna-lucat1-is-associated-with-poor-prognosis-in-human-non-small-lung-cancer-and-regulates-cell-proliferation-via-epigenetically-repressing-p21-and-p57-expression
#12
Yue Sun, Shi-Dai Jin, Quan Zhu, Liang Han, Jing Feng, Xi-Yi Lu, Wei Wang, Feng Wang, Ren-Hua Guo
Recently, long non-coding RNAs (lncRNAs) have been recognized as playing key roles in regulating cellular processes, such as proliferation, invasion, and metastasis. These lncRNAs have been shown to be abnormally expressed in tumorigenic processes. However, the role and clinical relevance of LUCAT1 in non-small-cell lung cancer (NSCLC) remain unclear. In this study, we found that the expression of LUCAT1 was significantly up-regulated in NSCLC tissues compared to non-tumor tissues, and its expression was associated with tumor size, tumor-node-metastasis (TNM) stage and overall survival (OS)...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423659/targeting-hox-pbx-dimers-in-cancer
#13
REVIEW
Richard Morgan, Mohamed El-Tanani, Keith D Hunter, Kevin J Harrington, Hardev S Pandha
The HOX and PBX gene families encode transcription factors that have key roles in establishing the identity of cells and tissues in early development. Over the last 20 years it has become apparent that they are also dysregulated in a wide range of solid and haematological malignancies and have a predominantly pro-oncogenic function. A key mode of transcriptional regulation by HOX and PBX proteins is through their interaction as a heterodimer or larger complex that enhances their binding affinity and specificity for DNA, and there is growing evidence that this interaction is a potential therapeutic target in malignancies that include prostate, breast, renal, ovarian and lung cancer, melanoma, myeloma, and acute myeloid leukaemia...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423588/shp2-confers-cisplatin-resistance-in-small-cell-lung-cancer-via-an-akt-mediated-increase-in-ca916798
#14
Xuemei Yang, Chunlan Tang, Hu Luo, Haijing Wang, Xiangdong Zhou
The tyrosine phosphatase Shp2 is associated with tumorigenesis in small cell lung cancer (SCLC). However, the relationship between Shp2 and resistance to chemotherapy remains unclear. Here, we show that Shp2 plays an important role in inducing resistance to cisplatin-based chemotherapy via the SHP2-AKT-CA916798 pathway. In an SCLC cell line, overexpression of Shp2 induced cisplatin resistance and the increased expression of AKT, pAKT, pmTOR, and CA916798. Conversely, depletion of Shp2 in a cisplatin-resistant cell line via RNA interference increased cisplatin sensitivity and decreased AKT, pAKT, pmTOR, and CA916798 expression levels...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422739/diagnostic-role-of-wnt-pathway-gene-promoter-methylation-in-non-small-cell-lung-cancer
#15
Shunlin Liu, Xiaoying Chen, Ruhua Chen, Jinzhi Wang, Guoliang Zhu, Jianzhong Jiang, Hongwei Wang, Shiwei Duan, Jianan Huang
Wnt signal pathway genes are known to be involved with cancer development. Here we tested the hypothesis whether DNA methylation of genes part of the Wnt signaling pathway could help the diagnosis of non-small cell lung cancer (NSCLC). The methylation levels of SFRP1, SFRP2, WIF1 and PRKCB in 111 NSCLC patients were evaluated by quantitative methylation-specific PCR (qMSP). Promoter methylation levels of four candidate genes were significantly higher in tumor tissues compared with the adjacent tissues. SFRP1, SFRP2 and PRKCB genes were all shown to be good predictors of NSCLC risk (SFRP1: AUC = 0...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422250/a-novel-nanomissile-targeting-two-biomarkers-and-accurately-bombing-ctcs-with-doxorubicin
#16
Yu Gao, Xiaodong Xie, Fengqiao Li, Yusheng Lu, Tao Li, Shu Lian, Yingying Zhang, Huijuan Zhang, Hao Mei, Lee Jia
Rare circulating tumor cells (CTCs) cause >50% of primary colorectal cancer survivors to develop deadly metastasis at 3-5 years after surgery; the current chemotherapies can do nothing about these cells. Herein, we synthesized a novel doxorubicin (DOX)-entrapped mesoporous silica nanoparticle (MSN), covalently-conjugated with two aptamers, for simultaneously targeting EpCAM and CD44, the typical surface biomarkers of colorectal CTCs. The nanomissile can specifically capture the metastasis-prone CTCs spiked in healthy human blood in a competitive-binding manner...
April 19, 2017: Nanoscale
https://www.readbyqxmd.com/read/28420726/intra-and-inter-observer-reproducibility-assessment-of-pd-l1-biomarker-in-non-small-cell-lung-cancer-nsclc
#17
Wendy A Cooper, Prudence A Russell, Maya Cherian, Edwina E Duhig, David Godbolt, Peter J Jessup, Christine Khoo, Connull Leslie, Annabelle Mahar, David F Moffat, Vanathi Sivasubramaniam, Céline Faure, Alena Reznichenko, Amanda Grattan, Stephen B Fox
<br />Reliable and reproducible methods for identifying PD-L1 expression on tumor cells are necessary to identify responders to anti-PD-1 therapy. We tested the reproducibility of the assessment of PD-L1 expression in non-small cell lung cancer (NSCLC) tissue samples by pathologists.<br />Experimental Design: <br />NSCLC samples were stained with PD-L1 22C3 pharmDx™ kit using the Dako Autostainer Link 48 Platform. Two sample sets of 60 samples each were designed to assess inter- and intra-observer reproducibility considering 2 cut-points for positivity: 1% or 50% of PD-L1 stained tumor cells...
April 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28420725/monitoring-daily-dynamics-of-early-tumor-response-to-targeted-therapy-by-detecting-circulating-tumor-dna-in-urine
#18
Hatim Husain, Vladislava O Melnikova, Karena Kosco, Brian Woodward, Soham More, Sandeep C Pingle, Elizabeth Weihe, Ben Ho Park, Muneesh Tewari, Mark G Erlander, Ezra E W Cohen, Scott M Lippman, Razelle Kurzrock
Purpose: Non-invasive drug biomarkers for the early assessment of tumor response can enable adaptive therapeutic decision-making and proof-of-concept studies for investigational drugs. Circulating tumor DNA (ctDNA) is released into the circulation by tumor cell turnover and has been shown to be detectable in urine. Experimental Design : We tested the hypothesis that dynamic changes in epidermal growth factor receptor (EGFR) activating (exon 19del and L858R) and resistance (T790M) mutation levels detected in urine could inform tumor response within days of therapy for advanced non-small cell lung cancer (NSCLC) patients receiving osimertinib, a second line third generation anti-EGFR tyrosine kinase inhibitor...
April 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28420235/garcinol-from-garcinia-indica-downregulates-cancer-stem-like-cell-biomarker-aldh1a1-in-nsclc-a549-cells-through-ddit3-activation
#19
Jinhan Wang, Liwen Wang, Chi-Tang Ho, Kunsheng Zhang, Qiang Liu, Hui Zhao
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer and patients with NSCLC show high mortality rates still because of failure to clean up cancer stem cells (CSCs). The anticancer activity of phytochemical garcinol has been identified in various cancer cell models. However, the effect of garcinol on NSCLC cell lines is still not clear. Of the NSCLC cell lines we tested, A549 cells were the most sensitive to garcinol. Interestingly, Aldehyde Dehydrogenase 1 Family Member A1 (ALDH1A1) is preferentially expressed in A549 cells and downregulated by the addition of garcinol...
April 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28419107/characterization-of-a-transgenic-mouse-model-exhibiting-spontaneous-lung-adenocarcinomas-with-a-metastatic-phenotype
#20
Hsuen-Wen Chang, Zih-Miao Lin, Min-Ju Wu, Li-Yu Wang, Yen-Hung Chow, Shih Sheng Jiang, Hui-Ju Ch'ang, Vincent Hs Chang
Developing lung cancer in mouse models that display similarities of both phenotype and genotype will undoubtedly provide further and better insights into lung tumor biology. Moreover, a high degree of pathophysiological similarity between lung tumors from mouse models and their human counterparts will make it possible to use these mouse models for preclinical tests. Ovine pulmonary adenocarcinomas (OPAs) present the same symptoms as adenocarcinomas in humans and are caused by a betaretrovirus. OPAs have served as an exquisite model of carcinogenesis for human lung adenocarcinomas...
2017: PloS One
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