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Fluorescence lung cancer

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https://www.readbyqxmd.com/read/28637019/clinicopathological-characteristics-of-ros1-and-ret-rearranged-nsclc-in-caucasian-patients-data-from-a-cohort-of-713-non-squamous-nsclc-lacking-kras-egfr-her2-braf-pik3ca-alk-alterations
#1
Frédéric Dugay, Francisco Llamas-Gutierrez, Marjory Gournay, Sarah Medane, François Mazet, Dan Christian Chiforeanu, Emmanuelle Becker, Régine Lamy, Hervé Léna, Nathalie Rioux-Leclercq, Marc-Antoine Belaud-Rotureau, Florian Cabillic
Targeted therapies have substantially changed the management of non-small cell lung cancer (NSCLC) patients with driver oncogenes. Given the high frequency, EGFR and ALK aberrations were the first to be detected and paved the way for tyrosine kinase inhibitor (TKI) treatments. Other kinases such as ROS1 and more recently RET have emerged as promising targets, and ROS1 and RET TKIs are already available for precision medicine.We screened a large cohort of 713 Caucasian non-squamous NSCLC patients lacking EGFR/KRAS/BRAF/HER2/PI3KCA/ALK aberrations for ROS1 and RET rearrangements using fluorescence in situ hybridization to determine the frequency and clinicopathological characteristics of ROS1- and RET-positive patients...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28634123/clinical-utility-of-chromosomal-aneusomy-in-individuals-at-high-risk-of-lung-cancer
#2
Anna E Barón, Severine Kako, William J Feser, Heather Malinowski, Daniel Merrick, Kavita Garg, Stephen Malkoski, Shannon Pretzel, Jill M Siegfried, Wilbur A Franklin, York Miller, Holly J Wolf, Marileila Varella-Garcia
INTRODUCTION: Low dose CT screening for lung cancer has a high false positive rate with frequent discovery of indeterminate pulmonary nodules. Noninvasive biomarkers are needed to reduce false positives and improve risk stratification. A retrospective longitudinal evaluation was performed to assess chromosomal aneusomy in sputum via fluorescence in situ hybridization (CA-FISH) in four nested case-control studies. METHODS: ROC analysis resulted in two grouped cohorts: High Risk (CO High Risk and CO Nodule; 68 Cases, 69 controls) and Screening (ACRIN/NLST and PLuSS; 97 Cases, 185 controls)...
June 17, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28632731/cd47-overexpression-is-associated-with-decreased-neutrophil-apoptosis-phagocytosis-and-poor-prognosis-in-non-small-cell-lung-cancer-patients
#3
Lourdes Barrera, Edgar Montes-Servín, Juan-Manuel Hernandez-Martinez, María de Los Ángeles García-Vicente, Elizabeth Montes-Servín, Marytere Herrera-Martínez, José C Crispín, José Rafael Borbolla-Escoboza, Oscar Arrieta
BACKGROUND: Non-small-cell lung cancer (NSCLC) patients often exhibit neutrophilia, which has been associated with poor clinical outcomes. However, the mechanisms that lead to neutrophilia have not been fully established. CD47 is an antiphagocytic molecule that promotes neutrophil recruitment. METHODS: Blood was collected from 50 treatment-naive patients with advanced NSCLC and from 25 healthy subjects. The frequency of CD66b(+) cells and the expression of CD47 were determined by flow cytometry...
June 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28630436/a-novel-gd-dtpa-conjugated-poly-l-%C3%AE-glutamyl-glutamine-paclitaxel-polymeric-delivery-system-for-tumor-theranostics
#4
Lipeng Gao, Jinge Zhou, Jing Yu, Qilong Li, Xueying Liu, Lei Sun, Ting Peng, Jing Wang, Jianzhong Zhu, Jihong Sun, Weiyue Lu, Lei Yu, Zhiqiang Yan, Yiting Wang
The conventional chemotherapeutics could not be traced in vivo and provide timely feedback on the clinical effectiveness of drugs. In this study, poly(L-γ-glutamyl-glutamine)-paclitaxel (PGG-PTX), as a model polymer, was chemically conjugated with Gd-DTPA (Gd-diethylenetriaminepentaacetic acid), a T1-contrast agent of MRI, to prepare a Gd-DTPA-conjugated PGG-PTX (PGG-PTX-DTPA-Gd) delivery system used for tumor theranostics. PGG-PTX-DTPA-Gd can be self-assembled to NPs in water with a z-average hydrodynamic diameter about 35...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617551/mir-222-promotes-proliferation-migration-and-invasion-of-lung-adenocarcinoma-cells-by-targeting-ets1
#5
Q Sun, C-W Jiang, Z-H Tan, L-Y Hou, H Dong, K Liu, G Sun, Y-J Liu, Y-Q Wang, X-C Lu, H Liu
OBJECTIVE: The lung adenocarcinoma is a type of lung cancer. This research is to investigate the effects of miR-222 on the proliferation, migration and invasion of the lung adenocarcinoma cells. MATERIALS AND METHODS: At the beginning, MiR-222 and the controls were transfected to the lung adenocarcinoma cell line A549 for CCK-8 proliferation, transwell migration and Matrigel invasion, and then observed the effect of miR-222 on the proliferation, migration and invasion of lung adenocarcinoma cells...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28617433/isodeoxyelephantopin-induces-protective-autophagy-in-lung-cancer-cells-via-nrf2-p62-keap1-feedback-loop
#6
Yang Wang, Jing Zhang, Zhi-Hao Huang, Xiao-Hui Huang, Wei-Bin Zheng, Xing-Feng Yin, Yao-Lan Li, Bin Li, Qing-Yu He
Isodeoxyelephantopin (ESI), isolated from Elephantopus scaber L. has been reported to exert anticancer effects. In this study, we aimed to investigate whether and how cancer cells exert protective responses against ESI treatment. Confocal fluorescence microscopy showed that ESI significantly induced autophagy flux in the lung cancer cells expressing mCherry-EGFP-LC3 reporter. Treatment of the cells with ESI increased the expression levels of the autophagy markers including LC3-II, ATG3 and Beclin1 in a dose-dependent manner...
June 15, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28616294/optical-imaging-of-tissue-obtained-by-transbronchial-biopsies-of-peripheral-lung-lesions
#7
Kassem Harris, Daniel J Rohrbach, Kristopher Attwood, Jingxin Qiu, Ulas Sunar
BACKGROUND: Bronchoscopic procedures have been increasingly used for the diagnosis of peripheral lung cancers, but the yield remains moderately low. The aim of this study is to assess the feasibility and ability of a custom-built bimodal optical spectroscopy system to enhance the on-site discrimination between malignant and benign specimens obtained from the transbronchial lung biopsies (TBLB) of peripheral lung lesions. METHODS: We conducted a prospective and single-center pilot study to examine the TBLB specimens obtained from peripheral lung lesions...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28608966/next-generation-sequencing-and-clinical-outcomes-of-patients-with-lung-adenocarcinoma-treated-with-stereotactic-body-radiotherapy
#8
Richard J Cassidy, Xinyan Zhang, Pretesh R Patel, Joseph W Shelton, Chase E Escott, Gabriel L Sica, Michael R Rossi, Charles E Hill, Conor E Steuer, Rathi N Pillai, Suresh S Ramalingam, Taofeek K Owonikoko, Madhusmita Behera, Seth D Force, Felix G Fernandez, Walter J Curran, Kristin A Higgins
BACKGROUND: Genetic aberrations are well characterized in lung adenocarcinomas (LACs) and clinical outcomes have been influenced by targeted therapies in the advanced setting. Stereotactic body radiotherapy (SBRT) is the standard-of-care therapy for patients with nonoperable, early-stage LAC, but to the authors' knowledge, no information is available regarding the impact of genomic changes in these patients. The current study sought to determine the frequency and clinical impact of genetic aberrations in this population...
June 13, 2017: Cancer
https://www.readbyqxmd.com/read/28603646/ten-year-experience-with-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-single-center-results-in-mediastinal-diagnostic-and-staging
#9
Lorenzo Rosso, Stefano Ferrero, Paolo Mendogni, Eleonora Bonaparte, Rosaria Carrinola, Alessandro Palleschi, Ilaria Righi, Matteo Montoli, Francesco Damarco, Davide Tosi
BACKGROUND: Endobronchial ultrasonography with transbronchial needle aspiration (EBUS-TBNA) is recognized as an accurate and minimal invasive procedure for diagnosis and staging of lung cancer and lymph nodal malignancies. EBUS is recommended as the first choice procedure for mediastinal staging in lung cancer in international guidelines. METHODS: A retrospective evaluation was performed on single center experience with EBUS-TBNA in our thoracic surgery department in a 10-year time frame...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28603622/a-bronchial-fibroepithelial-polyp-with-abnormal-findings-on-auto-fluorescence-imaging
#10
Naomi Saito, Masahiro Yamasaki, Wakako Daido, Sayaka Ishiyama, Naoko Deguchi, Masaya Taniwaki
Bronchial fibroepithelial polyps represent a rare type of tumour that displays endobronchial growth. The findings of these lesions on auto-fluorescence imaging (AFI) bronchoscopy have not been reported, despite the usefulness of AFI in detecting early lung cancer. We report the case of a patient with a bronchial fibroepithelial polyp that displayed positivity (magenta colour) on AFI. The patient was a 65-year-old man, in whom an endobronchial polypoid lesion of 10 mm diameter had been detected in the right basal bronchus by chest computed tomography (CT)...
September 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28599449/design-and-synthesis-of-novel-n-substituted-thiosemicarbazones-bearing-a-pyrrole-unit-as-potential-anticancer-agents
#11
Taofeng Zhu, Shanshan Shen, Qin Lu, Xingpei Ye, Weiliang Ding, Ruhua Chen, Jing Xie, Wenjiao Zhu, Jun Xu, Lei Jia, Weina Wu, Tieliang Ma
A series of N(4)-substituted thiosemicarbazones (TSCs) bearing pyrrole unit (1a-1e) were synthesized and fully characterized by elemental analyses, infrared spectra, (1)H nuclear magnetic resonance and single crystal X-ray diffraction. The compounds were assessed as potential chemotherapeutic agents. All newly synthesized compounds were screened for their anticancer activity against lung cancer PC-9, esophageal cancer Eca-109 and gastric cancer SGC-7901 cell lines. The results of MTT, Terminal deoxynucleotidyl transferase dUTP nick end labeling and fluorescence-activated cell sorting assays indicated that all the prepared compounds exhibited cytotoxicity against PC-9, Eca-109 and SGC-7901 cells in vitro...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599439/anti-proliferative-and-anti-metastasis-effects-of-ten-oligostilbenes-from-the-seeds-of-paeonia-suffruticosa-on-human-cancer-cells
#12
Ying Gao, Chunnian He
Paeonia suffruticosa from the section Moutan of the genus Paeonia is an important Chinese medicinal herb. In our previous study, 10 oligostilbenes from the seeds of P. suffruticosa, including trans-resveratrol and its dimers and trimers, were isolated and identified. In the present study, the anti-proliferative effects of these 10 oligostilbenes were systemically evaluated in a panel of human lung, breast and bone cancer cell lines, and their apoptotic effects were analyzed using a high-content multiplex apoptosis assay and a fluorescent caspase-3/7 assay...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599129/unfolding-biological-properties-of-a-versatile-dicopper-ii-precursor-and-its-two-mononuclear-copper-ii-derivatives
#13
Anup Paul, Susanta Hazra, Gunjan Sharma, M Fátima C Guedes da Silva, Biplob Koch, Armando J L Pombeiro
Synthesis, inter-conversions and biological study of the dichloro bridged dicopper(II) compound [CuLCl]2 (1) and its two mononuclear derivatives [CuLCl(H2O)]·H2O (2) and [CuLCl(py)] (3) (HL=2-(2-pyridylmethyleneamino)benzenesulfonic acid) are described. The dimeric compound 1 collapses into monomers 2 and 3 in the presence of coordinating solvents, water and pyridine, respectively, and 1 is regenerated upon simple stirring of 2 or 3 in methanol. The reactions of 1 with neutral (present study) and charged (earlier studies) ligands result in monomeric and multimeric compounds, respectively, attesting that it is a versatile dicopper(II) precursor...
May 31, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28597670/-identification-of-an-optimal-algorithm-for-effective-diagnostics-of-non-small-cell-lung-cancer-with-alk-gene-rearrangement-implementation-of-the-method-and-practical-experiences-with-routine-diagnostics
#14
Tomáš Rozkoš, Aleš Ryška, Markéta Nová, Helena Hornychová, Lukáš Krbal, Radoslav Matěj, Jan Laco
The aim of the retrospective part of the study was a) to select an optimal clone of immunohistochemical (IHC) antibody against the ALK protein with specificity and sensitivity high enough to use this antibody as a screening method for selecting non-small cell lung cancer (NSCLC) cases for fluorescence in situ hybridization (FISH) testing of ALK gene rearrangement and b) to determine the diagnostic yield of "small" biopsies i.e. endobronchial, transbronchial and transthoracic biopsies and cytoblocks for ALK gene rearrangement testing...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28596489/nanobubbles-as-ultrasound-contrast-agent-for-facilitating-small-cell-lung-cancer-imaging
#15
Jin-Ping Wang, Xiao-Lin Zhou, Ji-Ping Yan, Rong-Qin Zheng, Wei Wang
BACKGROUND: This study is to investigate whether liposome-loaded nanobubbles (NBs) have the potentials to carry anti-pro-gastrin releasing peptide (proGRP) antibody and enhance ultrasound imaging of small cell lung cancer (SCLC). METHODS: NBs were loaded with an antibody against SCLC (H446 cell line). A nude mouse model of SCLC tumor was established by a subcutaneous injection of tumor cell suspension in the dorsal skin. Images for contrast-enhanced ultrasound (CEUS) of xenograft tumors in the model were obtained through an intravenous injection of blank and targeting NBs...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28590585/comparison-of-the-c-met-gene-amplification-between-primary-tumor-and-metastatic-lymph-nodes-in-non-small-cell-lung-cancer
#16
Chun-Wei Xu, Wen-Xian Wang, Mei-Juan Wu, You-Cai Zhu, Wu Zhuang, Gen Lin, Kai-Qi Du, Yun-Jian Huang, Yan-Ping Chen, Gang Chen, Mei-Yu Fang
BACKGROUND: c-MET has recently been identified as a promising novel target in non-small cell lung cancer (NSCLC). We detected the consistency of c-MET gene amplification in metastatic lymph nodes and tumor tissues of NSCLC patients and discuss the clinical application value of c-MET gene amplification in metastatic lymph nodes. METHODS: Real-time fluorescent quantitative PCR was used to test tumor tissues in 368 NSCLC patients and 178 paired metastatic lymph node samples...
June 7, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28586008/a-nanobody-targeting-carcinoembryonic-antigen-as-a-promising-molecular-probe-for-non-small-cell-lung-cancer
#17
Hao Wang, Ai-Min Meng, Sheng-Hua Li, Xiao-Liang Zhou
Carcinoembryonic antigen (CEA) is a biomarker and therapy target for non‑small cell lung cancer (NSCLC), which is the most common type of lung cancer. Nanobodies with high target specificity are promising candidates to function as anti‑CEA probes. In the present study, the targeting effects of an anti‑CEA nanobody obtained from phage display were investigated using technetium‑99 m (99mTc) and fluorescence labeling. In vitro binding and immunofluorescent staining assays, as well as in vivo blood clearance and biodistribution assays were performed...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28580701/identification-of-dj-1-as-a-contributor-to-multidrug-resistance-in-human-small-cell-lung-cancer-using-proteomic-analysis
#18
Hongyi Gao, Yuchun Niu, Man Li, Shun Fang, Linlang Guo
Proteomic approaches have been proven to provide an important tool in identifying drug resistance-associated proteins. The aim of this study was to investigate the protein profiling of drug resistance-related proteins in small-cell lung cancer (SCLC) by proteomic analysis. The proteomic profiling was performed by two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) coupled with MALDI-TOF-TOF of SCLC in the multidrug-resistant cell line H69AR and its parental cell line H69. A total of 11 proteins were identified to be >2-fold up-or downregulated between the two cell lines...
June 5, 2017: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/28577937/therapy-induced-e-cadherin-downregulation-alters-expression-of-programmed-death-ligand-1-in-lung-cancer-cells
#19
Kenichi Suda, Leslie Rozeboom, Christopher J Rivard, Hui Yu, Kim Ellison, Mary Ann C Melnick, Trista K Hinz, Daniel Chan, Lynn E Heasley, Katerina Politi, Tetsuya Mitsudomi, Fred R Hirsch
OBJECTIVES: Immunotherapy that targets the programmed death-1/programmed death-ligand 1 (PD-L1) axis has been approved for treatment of non-small cell lung cancer (NSCLC) patients in many countries. However, our current understanding of the role of immunotherapies on NSCLC patients with epidermal growth factor receptor (EGFR) mutation, following acquisition of resistance to EGFR tyrosine kinase inhibitors (TKIs), is so far unclear. Especially, there is little data on if each acquired resistance mechanism to EGFR-TKIs alters PD-L1 expression status which is employed as an important predictive biomarker for PD-1/PD-L1 targeting agents...
July 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28573389/effect-of-multiple-cycles-of-freeze-thawing-on-the-rna-quality-of-lung-cancer-tissues
#20
Keke Yu, Jie Xing, Jie Zhang, Ruiying Zhao, Ye Zhang, Lanxiang Zhao
RNA degradation is a major problem in tissue banking. We explored the effect of thawing flash-frozen biospecimens on the quality and integrity of RNA for genetic testing as well as for other cancer research studies. The histological quality of the frozen tumor sections was evaluated by using hematoxylin and eosin staining. RNA extraction from 60 lung cancer tissue samples subjected to various freeze/thaw cycles was performed using the RNeasy Plus isolation kit. RNA integrity was assessed by using an Agilent bioanalyzer to obtain RNA integrity numbers (RIN)...
June 1, 2017: Cell and Tissue Banking
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