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Lung cancer marker

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https://www.readbyqxmd.com/read/28649487/rapid-decrease-of-circulating-tumor-dna-predicted-the-treatment-effect-of-nivolumab-in-a-lung-cancer-patient-within-only-5-days
#1
Yuki Iijima, Yosuke Hirotsu, Kenji Amemiya, Seishi Higashi, Yoshihiro Miyashita, Masao Omata
A 77-year-old Japanese man presented to our hospital with a 1-month history of low back pain and was diagnosed as having stage IV EGFR mutation-positive lung adenocarcinoma. After treatment with EGFR tyrosine kinase inhibitor and cytotoxic chemotherapy, nivolumab was started as fourth-line therapy. Remarkable regression of the primary tumor was observed, suggesting high anti-tumor activity of nivolumab. We retrospectively investigated the change in circulating tumor DNA (ctDNA) variant allele fractions in serial plasma samples before and after the nivolumab therapy...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28648905/antibodies-against-immune-checkpoint-molecules-restore-functions-of-tumor-infiltrating-t-cells-in-hepatocellular-carcinomas
#2
Guoying Zhou, Dave Sprengers, Patrick P C Boor, Michail Doukas, Hannah Schutz, Shanta Mancham, Alexander Pedroza-Gonzalez, Wojciech G Polak, Jeroen de Jonge, Marcia Gaspersz, Haidong Dong, Kris Thielemans, Qiuwei Pan, Jan N M IJzermans, Marco J Bruno, Jaap Kwekkeboom
BACKGROUND & AIMS: Ligand binding to inhibitory receptors on immune cells, such as programmed cell death 1 (PD-1) and cytotoxic T-lymphocyte associated protein 4 (CTLA4), downregulates the T-cell-mediated immune response (called immune checkpoints). Antibodies that block these receptors increase anti-tumor immunity in patients with melanoma, non-small cell lung cancer, and renal cell cancer. Tumor-infiltrating CD4(+) and CD8(+) T cells in patients with hepatocellular carcinoma (HCC) have been found to be functionally compromised...
June 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28647207/clinical-value-of-mir-425-5p-detection-and-its-association-with-cell-proliferation-and-apoptosis-of-gastric-cancer
#3
Zhuoqi Zhang, Ming Wen, Jian Guo, Jianwei Shi, Zhiyu Wang, Bibo Tan, Gang Zhang, Xiangkui Zheng, Aimin Zhang
Researches have shown that miR-425-5p expression altered in lung, esophageal, and glial cancer. Similarly, in our previous study, we found miR-425-5p expression was up-regulated in GC cells and could promote gastric cancer (GC) cell invasion and metastasis. However, the functional mechanism and the prognostic significance of miR-425-5p in GC remain unclear. Therefore, the present study examined miR-425-5p expression in GC tissues and also evaluated miR-425-5p of the therapeutic and prognostic value. Moreover, with interference of miR-425-5p expression in cell lines, we investigated the molecular mechanism of miR-425-5p and the expression level was higher in GC tissues comparing with that in gastric tumor-adjacent mucosa...
May 31, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28646553/epithelial-mesenchymal-transition-emt-a-spectrum-of-states-role-in-lung-development-homeostasis-and-disease
#4
REVIEW
Mohit Kumar Jolly, Chris Ward, Mathew Suji Eapen, Stephen Myers, Oskar Hallgren, Herbert Levine, Sukhwinder Singh Sohal
Epithelial Mesenchymal Transition (EMT) plays key roles during lung development and many lung diseases such as Chronic Obstructive Pulmonary Disease (COPD), lung cancer and pulmonary fibrosis. Here, integrating morphological observations with underlying molecular mechanisms, we highlight the functional role of EMT in lung development and injury repair, and discuss how it can contribute to pathogenesis of chronic lung disease. We discuss the evidence of manifestation of EMT and its potential driving role in COPD, idiopathic pulmonary fibrosis (IPF), bronchiolitis obliterans syndrome (BOS), and lung cancer, while noting that all cells need not display a full EMT in any of these contexts, i...
June 24, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28645267/a-rapid-and-quantitative-method-to-detect-human-circulating-tumor-cells-in-a-preclinical-animal-model
#5
Shih-Hsin Tu, Yi-Chen Hsieh, Li-Chi Huang, Chun-Yu Lin, Kai-Wen Hsu, Wen-Shyang Hsieh, Wei-Ming Chi, Chia-Hwa Lee
BACKGROUND: As cancer metastasis is the deadliest aspect of cancer, causing 90% of human deaths, evaluating the molecular mechanisms underlying this process is the major interest to those in the drug development field. Both therapeutic target identification and proof-of-concept experimentation in anti-cancer drug development require appropriate animal models, such as xenograft tumor transplantation in transgenic and knockout mice. In the progression of cancer metastasis, circulating tumor cells (CTCs) are the most critical factor in determining the prognosis of cancer patients...
June 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28645105/a-three-gene-immunohistochemical-panel-serves-as-an-adjunct-to-clinical-staging-of-patients-with-head-and-neck-cancer
#6
Chin-Ann J Ong, Nicholas B Shannon, Stefan Mueller, Sze Min Lek, Xuan Qiu, Fui Teen Chong, Ke Li, Kelvin K N Koh, Gerald C A Tay, Thakshayeni Skanthakumar, Jacqueline S G Hwang, Tony Kiat Hon Lim, Mei Kim Ang, Daniel S W Tan, Ngian-Chye Tan, Hiang Khoon Tan, Khee Chee Soo, N Gopalakrishna Iyer
BACKGROUND: Current management of head and neck squamous cell carcinoma (HNSCC) depends on tumor staging. Despite refinements in clinical staging algorithms, outcomes remain unchanged for the last two decades. In this study, we set out to identify a small, clinically applicable molecular panel to aid prognostication of patients with HNSCC. MATERIALS AND METHODS: Data from The Cancer Genome Atlas (TCGA) was used to derive copy number aberrations and expression changes to identify putative prognostic genes...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644958/translating-cancer-epigenomics-into-the-clinic-focus-on-lung-cancer
#7
REVIEW
Josep Mari-Alexandre, Angel Diaz-Lagares, Maria Villalba, Oscar Juan, Ana B Crujeiras, Alfonso Calvo, Juan Sandoval
Epigenetic deregulation is increasingly being recognized as a hallmark of cancer. Recent studies have identified many new epigenetic biomarkers, some of which are being introduced into clinical practice for diagnosis, molecular classification, prognosis or prediction of response to therapies. O-6-methylguanine-DNA methyltransferase gene is the most clinically advanced epigenetic biomarker as it predicts the response to temozolomide and carmustine in gliomas. Therefore, epigenomics may represent a novel and promising tool for precision medicine, and in particular, the detection of epigenomic biomarkers in liquid biopsies will be of great interest for monitoring diseases in patients...
June 2, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28644386/capsaicin-induces-autophagy-and-apoptosis-in-human-nasopharyngeal-carcinoma-cells-by-downregulating-the-pi3k-akt-mtor-pathway
#8
Yu-Tsai Lin, Hung-Chen Wang, Yi-Chiang Hsu, Chung-Lung Cho, Ming-Yu Yang, Chih-Yen Chien
Capsaicin is a potential chemotherapeutic agent for different human cancers. In Southeast China, nasopharyngeal carcinoma (NPC) has the highest incidence of all cancers, but final treatment outcomes are unsatisfactory. However, there is a lack of information regarding the anticancer activity of capsaicin in NPC cells, and its effects on the signaling transduction pathways related to apoptosis and autophagy remain unclear. In the present study, the precise mechanisms by which capsaicin exerts anti-proliferative effects, cell cycle arrest, autophagy and apoptosis were investigated in NPC-TW01 cells...
June 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28642450/cbp501-inhibits-egf-dependent-cell-migration-invasion-and-epithelial-to-mesenchymal-transition-of-non-small-cell-lung-cancer-cells-by-blocking-kras-to-calmodulin-binding
#9
Naoya Saito, Naoki Mine, Donald W Kufe, Daniel D Von Hoff, Takumi Kawabe
The anti-cancer agent CBP501 binds to calmodulin (CaM). Recent studies showed that migration and metastasis are inhibited by several CaM antagonists. However, there is no available evidence that CBP501 has similar effects. Here we found that CBP501 inhibits migration of non-small cell lung cancer (NSCLC) cells in vitro, even in the presence of migration inducing factors such as WNT, IL-6, and several growth factors. CBP501 also inhibited epidermal growth factor (EGF) enhanced invasion and the epithelial-to-mesenchymal transition (EMT), and this inhibition was accompanied by (i) suppression of Akt and ERK1/2 phosphorylation, and (ii) suppression of expression of transcription factor Zeb1 and the mesenchymal marker Vimentin...
June 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28640251/inhibition-of-cancer-growth-in-vitro-and-in-vivo-by-a-novel-ros-modulating-agent-with-ability-to-eliminate-stem-like-cancer-cells
#10
Jiankang Wang, Bingling Luo, Xiaobing Li, Wenhua Lu, Jing Yang, Yumin Hu, Peng Huang, Shijun Wen
Reactive oxygen species (ROS) have a crucial role in cell signaling and cellular functions. Mounting evidences suggest that abnormal increase of ROS is often observed in cancer cells and that this biochemical feature can be exploited for selective killing of the malignant cells. A naturally occurring compound phenethyl isothiocyanate (PEITC) has been shown to have promising anticancer activity by modulating intracellular ROS. Here we report a novel synthetic analog of PEITC with superior in vitro and in vivo antitumor effects...
June 22, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28638464/overexpression-of-pak1-correlates-with-aberrant-expression-of-emt-markers-and-poor-prognosis-in-non-small-cell-lung-cancer
#11
Zhiying Yang, Heran Wang, Longzheng Xia, Linda Oyang, Yujuan Zhou, Baihua Zhang, Xiaoyan Chen, Xia Luo, Qianjin Liao, Jianping Liang
Objective: p21-activated kinases (PAKs) are serine/threonine protein kinases. PAK1 and epithelial-mesenchymal transition (EMT) are key therapeutic targets in cancer. The clinical significance of PAK1 and its potential association with EMT phenotype in non-small cell lung cancer (NSCLC) was investigated. Methods: Immunohistochemistry was used to detect the expression of PAK1, and mesenchymal and epithelial markers (vimentin, N-cadherin, and E-cadherin) in 186 cases of NSCLC tissues and 50 cases of tumor-adjacent normal tissues...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28638459/towards-prognostic-profiling-of-non-small-cell-lung-cancer-new-perspectives-on-the-relevance-of-polo-like-kinase-1-expression-the-tp53-mutation-status-and-hypoxia
#12
Jolien Van den Bossche, Christophe Deben, Ken Op de Beeck, Vanessa Deschoolmeester, Christophe Hermans, Ines De Pauw, Julie Jacobs, Paul Van Schil, Jan Baptist Vermorken, Patrick Pauwels, Marc Peeters, Filip Lardon, An Wouters
Background: Currently, prognosis of non-small cell lung cancer (NSCLC) patients is based on clinicopathological factors, including TNM stage. However, there are considerable differences in patient outcome within a similar staging group, even when patients received identical treatments. In order to improve prognostic predictions and to guide treatment options, additional parameters influencing outcome are required. Polo-like kinase 1 (Plk1), a master regulator of mitotic cell division and the DNA damage response, is considered as a new potential biomarker in this research area...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28637014/a-combination-of-valproic-acid-sodium-salt-chir99021-e-616452-tranylcypromine-and-3-deazaneplanocin-a-causes-stem-cell-like-characteristics-in-cancer-cells
#13
Shuang Sha, Yuanfen Zhai, Chengzhao Lin, Heyong Wang, Qing Chang, Shuang Song, Mingqiang Ren, Gentao Liu
Many studies are based on the hypothesis that recurrence and drug resistance in lung carcinoma are due to a subpopulation of cancer stem-like cells (CSLCs) in solid tumors. Therefore it is crucial to screen for and recognize lung CSLCs. In this study, we stimulated non-small cell lung cancer (NSCLC) A549 cells to display stem cell-like characteristics using a combination of five small molecule compounds. The putative A549 stem cells activated an important CSLC marker, CD133 protein, as well multiple CSLC-related genes including ATP-binding cassette transporter G2 (ABCG2), C-X-C chemokine receptor type 4 (CXCR4), NESTIN, and BMI1...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28629928/safety-and-efficacy-of-endovascular-fiducial-marker-insertion-for-cyberknife-stereotactic-radiation-therapy-planning-in-early-stage-lung-cancer
#14
Mikael Mongeon, Florence Thibault, Carl Chartrand-Lefebvre, Andrei-Bogdan Gorgos, Gilles Soulez, Edith Filion, Eric Therasse
PURPOSE: To evaluate the safety and efficacy of endovascular fiducial markers (EVFMs) for CyberKnife stereotactic radiation therapy (RT) of malignant lung neoplasms in patients with contraindications to percutaneous fiducial marker (PTFM) placement. MATERIALS AND METHODS: Between January 2011 and December 2013, 15 patients (7 men and 8 women) aged 59-87 years (mean, 73 y) underwent EVFM placement and 109 patients (54 men and 55 women) aged 55-92 years (mean, 73 y) underwent 114 PTFM placements...
June 16, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28629896/randomized-phase-ii-study-of-preoperative-chemoradiotherapy-panitumumab-followed-by-consolidation-chemotherapy-in-potentially-operable-locally-advanced-stage-iiia-n2-non-small-cell-lung-cancer-nrg-oncology-rtog-0839
#15
Martin J Edelman, Chen Hu, Quynh-Thu Le, Jessica S Donington, Warren D D'Souza, Adam P Dicker, Billy W Loo, Elizabeth M Gore, Gregory M M Videtic, Nathaniel R Evans, Joseph W Leach, Maximilian Diehn, Steven J Feigenberg, Yuhchyau Chen, Rebecca Paulus, Jeffrey D Bradley
INTRODUCTION: Multimodality therapy has curative potential in locally advanced non-small cell lung cancer (LASCLC). Mediastinal nodal sterilization (MNS) after induction chemoradiotherapy (CRT) can serve as an intermediate marker for efficacy. NRG Oncology RTOG 0229 demonstrated the feasibility and efficacy of combining full dose radiation (61.2Gy) with chemotherapy followed by resection and chemotherapy. Based upon that experience and evidence that epidermal growth factor receptor (EGFR) antibodies are radiosensitizing, we explored adding panitumumab to CRT followed by resection and consolidation chemotherapy in LANSCLC with a primary endpoint of MNS...
June 16, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28625771/comparison-of-plasma-to-tissue-dna-mutations-in-surgical-patients-with-non-small-cell-lung-cancer
#16
Kezhong Chen, Jingbo Zhang, Tian Guan, Fan Yang, Feng Lou, Wei Chen, Mingyu Zhao, Jay Zhang, Siyi Chen, Jun Wang
OBJECTIVE: Noninvasive liquid biopsies of circulating tumor DNA (ctDNA) can be used to assess non-small cell lung cancer (NSCLC), but previous work focused on patients with advanced-stage cancer. Thus, we evaluated the feasibility and their potential clinical application of circulating tumor DNA approached for surgical patients with NSCLC. METHOD: Consecutive patients with suspected lung cancer who underwent curative-intent lung resection were enrolled prospectively in this study...
May 24, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28625636/prognostic-impact-of-ttf-1-expression-in-patients-with-stage-iv-lung-adenocarcinomas
#17
Juliana B Schilsky, Ai Ni, Linda Ahn, Sutirtha Datta, William D Travis, Mark G Kris, Jamie E Chaft, Natasha Rekhtman, Matthew D Hellmann
OBJECTIVES: Thyroid transcription factor 1 (TTF-1) is routinely tested in the diagnostic evaluation of suspected lung cancers, is commonly expressed by lung adenocarcinomas, and may modulate lung cancer biology. We examined the role of TTF-1 as a predictive and prognostic marker in patients with advanced lung adenocarcinomas. MATERIALS AND METHODS: We analyzed clinical, pathologic, and molecular features, treatments received, and overall survival obtained from the medical records of 479 consecutive patients at a single site with stage IV lung adenocarcinomas and evaluable TTF-1 expression...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28625519/multiplex-ultrasensitive-genotyping-of-patients-with-non-small-cell-lung-cancer-for-epidermal-growth-factor-receptor-egfr-mutations-by-means-of-picodroplet-digital-pcr
#18
Masaru Watanabe, Tomoya Kawaguchi, Shun-Ichi Isa, Masahiko Ando, Akihiro Tamiya, Akihito Kubo, Hideo Saka, Sadanori Takeo, Hirofumi Adachi, Tsutomu Tagawa, Osamu Kawashima, Motohiro Yamashita, Kazuhiko Kataoka, Yukito Ichinose, Yukiyasu Takeuchi, Katsuya Watanabe, Akihide Matsumura, Yasuhiro Koh
Epidermal growth factor receptor (EGFR) mutations have been used as the strongest predictor of effectiveness of treatment with EGFR tyrosine kinase inhibitors (TKIs). Three most common EGFR mutations (L858R, exon 19 deletion, and T790M) are known to be major selection markers for EGFR-TKIs therapy. Here, we developed a multiplex picodroplet digital PCR (ddPCR) assay to detect 3 common EGFR mutations in 1 reaction. Serial-dilution experiments with genomic DNA harboring EGFR mutations revealed linear performance, with analytical sensitivity ~0...
June 7, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28624968/do-cancer-cell-lines-have-fixed-or-fluctuating-stem-cell-phenotypes-studies-with-the-ntera2-cell-line
#19
Zachariah P Sellers, Gabriela Schneider, Kamila Bujko, Malwina Suszynska, Daniel Pedziwiatr
One of the important questions when studying established cancer cell lines is whether such cells contain a subpopulation of primitive cancer stem cells that maintains the expansion of the cell line. To address this issue, we performed studies on the established human embryonal carcinoma cell line NTera2 by evaluating the potential stemness of cells sorted according to their expression of the cell surface stem cell markers CD133 and SSEA4. By performing in vitro and in vivo assays, we observed different properties of cells expressing both, one, or neither of these antigens...
June 17, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28624808/yb-1-regulates-tumor-growth-by-promoting-macc1-c-met-pathway-in-human-lung-adenocarcinoma
#20
Tao Guo, Shilei Zhao, Peng Wang, Xiaoyuan Xue, Yan Zhang, Mengying Yang, Nan Li, Zhuoshi Li, Lingzhi Xu, Lei Jiang, Lei Zhao, Patrick C Ma, Rafael Rosell, Jinxiu Li, Chundong Gu
Aberrant overexpression of the transcription/translation factor Y-box-binding protein (YB-1) is associated with poor prognosis of lung adenocarcinoma, however the underlying mechanism by which YB-1 acts has not been fully elucidated. Here, we reported that inhibition of YB-1 diminished proliferation, migration and invasion of lung adenocarcinoma cells. Interestingly, we identified metastasis associated in colon cancer-1 (MACC1) as a target of YB-1. Depletion of YB-1 markedly decreased MACC1 promoter activity and suppressed the MACC1/c-Met signaling pathway in lung adenocarcinoma cells...
May 29, 2017: Oncotarget
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