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https://www.readbyqxmd.com/read/29053936/evaluation-of-an-improved-prototype-mini-baghouse-to-control-the-release-of-respirable-crystalline-silica-from-sand-movers
#1
Barbara M Alexander, Eric J Esswein, Michael G Gressel, Jerry L Kratzer, H Amy Feng, Arthur L Miller, Emanuele Cauda, Graeham Heil
The OSHA final rule on respirable crystalline silica (RCS) will require hydraulic fracturing companies to implement engineering controls to limit workers' exposure to RCS. RCS is generated by pneumatic transfer of quartz-containing sand during hydraulic fracturing operations. Chronic inhalation of RCS can lead to serious disease, including silicosis and lung cancer. NIOSH research identified at least seven sources where RCS aerosols were generated at hydraulic fracturing sites. NIOSH researchers developed an engineering control to address one of the largest sources of RCS aerosol generation, RCS escaping from thief hatches on the top of sand movers...
October 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29053662/high-expression-of-s100a6-predicts-unfavorable-prognosis-of-lung-squamous-cell-cancer
#2
Xigang He, Xueliang Xu, Abdul Qadir Khan, Wei Ling
BACKGROUND S100 family of proteins is mainly involved in regulation of intracellular calcium homeostasis. Aberrant expression of S100 family members has been reported in many types of cancers. However, as a member of S100 family, the prognostic value of S100A6 for lung squamous cell carcinoma (SCC) has not been well-studied. MATERIAL AND METHODS Using immunohistochemistry, we investigated the expression of S100A6 in 177 patients with SCC and further divided the cohort into a high S100A6 expression group and a low S100A6 expression group...
October 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29053471/pegylated-anticancer-carbon-nanotubes-complex-targeting-mitochondria-of-lung-cancer-cells
#3
Sang-Woo Kim, Yeon Kyung Lee, Jong Yeon Lee, Jeong Hee Hong, Dongwoo Khang
Although activating apoptosis in cancer cells by targeting the mitochondria is an effective strategy for cancer therapy, insufficient targeting of the mitochondria in cancer cells restricts the availability in clinical treatment. Here, we report on a polyethylene glycol-coated carbon nanotube (CNT)-ABT737 nanodrug that improves the mitochondrial targeting of lung cancer cells. The polyethylene glycol-coated CNT-ABT737 nanodrug internalized into the early endosomes via macropinocytosis and clathrin-mediated endocytosis in advance of early endosomal escape and delivered into the mitochondria...
October 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29053460/sdl-saliency-based-dictionary-learning-framework-for-image-similarity
#4
Rituparna Sarkar, Scott T Acton
In image classification, obtaining adequate data to learn a robust classifier has often proven to be difficult in several scenarios. Classification of histological tissue images for health care analysis is a notable application in this context due to the necessity of surgery, biopsy or autopsy. To adequately exploit limited training data in classification, we propose a saliency guided dictionary learning method and subsequently an image similarity technique for histo-pathological image classification. Salient object detection from images aids in the identification of discriminative image features...
October 16, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29053416/imaging-of-integrin-%C3%AE-v%C3%AE-3-expression-in-lung-cancers-and-brain-tumors-using-single-photon-emission-computed-tomography-with-a-novel-radiotracer-99m-tc-ida-d-c-rgdfk-2
#5
Yoo Sung Song, Hyun Soo Park, Byung Chul Lee, Jae Ho Jung, Ho-Young Lee, Sang Eun Kim
Integrin αvβ3 is a molecular marker for the estimation of tumor angiogenesis and is an imaging target for radiolabeled Arg-Gly-Asp (RGD) peptides. In this study, the authors investigated the clinical efficacy and safety of a novel radiolabeled RGD peptide, (99m)Tc-IDA-D-[c(RGDfK)]2, for the imaging of integrin αvβ3 expression, as a measure of tumor angiogenesis in lung cancers and brain tumors. Five patients with lung cancers and seven with brain tumors underwent (99m)Tc-IDA-D-[c(RGDfK)]2 single-photon emission computed tomography (SPECT) imaging...
October 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29053407/lung-rads-pushing-the-limits
#6
Maria D Martin, Jeffrey P Kanne, Lynn S Broderick, Ella A Kazerooni, Cristopher A Meyer
In response to the recommendation of the U.S. Preventive Services Task Force and the coverage decision by the Centers for Medicare and Medicaid Services for lung cancer screening (LCS) computed tomography (CT), the American College of Radiology introduced the Lung CT Screening Reporting and Data System (Lung-RADS) in 2014 to standardize the reporting and management of screening-detected lung nodules. As with many first-edition guidelines, questions arise when such reporting systems are used in daily practice...
October 20, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29053400/programmed-death-ligand-1-immunohistochemistry-testing-a-review-of-analytical-assays-and-clinical-implementation-in-non-small-cell-lung-cancer
#7
Reinhard Büttner, John R Gosney, Birgit Guldhammer Skov, Julien Adam, Noriko Motoi, Kenneth J Bloom, Manfred Dietel, John W Longshore, Fernando López-Ríos, Frédérique Penault-Llorca, Giuseppe Viale, Andrew C Wotherspoon, Keith M Kerr, Ming-Sound Tsao
Purpose Three programmed death-1/programmed death-ligand 1 (PD-L1) inhibitors are currently approved for treatment of non-small-cell lung cancer (NSCLC). Treatment with pembrolizumab in NSCLC requires PD-L1 immunohistochemistry (IHC) testing. Nivolumab and atezolizumab are approved without PD-L1 testing, though US Food and Drug Administration-cleared complementary PD-L1 tests are available for both. PD-L1 IHC assays used to assess PD-L1 expression in patients treated with programmed death-1/PD-L1 inhibitors in clinical trials include PD-L1 IHC 28-8 pharmDx (28-8), PD-L1 IHC 22C3 pharmDx (22C3), Ventana PD-L1 SP142 (SP142), and Ventana PD-L1 SP263 (SP263)...
October 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29053395/overexpression-of-hn1l-promotes-cell-malignant-proliferation-in-non-small-cell-lung-cancer
#8
Lei Li, Ting-Ting Zeng, Bao-Zhu Zhang, Yan Li, Ying-Hui Zhu, Xin-Yuan Guan
Non-small cell lung cancer (NSCLC) is a progressive malignant disease, involving the activation of oncogenes and inactivation of tumor suppressors. In this study, we identified and characterized a novel oncogene hematopoietic- and neurologic-expressed sequence 1-like (HN1L) in human NSCLC. Overexpression of HN1L was frequently detected in primary NSCLC compared with their non-tumor counterparts (P < 0.001), which was significantly associated with tumor size (P = 0.022). In addition, Kaplan-Meier analysis showed that upregulation of HN1L correlated with worse overall survival (P = 0...
October 20, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29053224/programmed-death-ligand-1-testing-of-lung-cancer-cytology-specimens-obtained-with-bronchoscopy
#9
Sean P Stoy, Lauren Rosen, Jeffrey Mueller, Septimiu Murgu
BACKGROUND: Programmed death-ligand 1 (PD-L1) expression testing is recommended by guidelines for patients with advanced non-small cell lung cancer (NSCLC). The primary objective of the current study was to determine the success rate of PD-L1 testing from cytology cell block samples obtained by bronchoscopic needle aspiration. The secondary objective was the assessment of the difference in specimen adequacy acquired via needles of different gauges. METHODS: Patients with NSCLC who underwent bronchoscopic needle aspirations for which PD-L1 testing was requested between November 1, 2016, and February 6, 2017, were included in the current analysis...
October 20, 2017: Cancer
https://www.readbyqxmd.com/read/29053106/issues-in-quantification-of-registered-respiratory-gated-pet-ct-in-the-lung
#10
Vesna Cuplov, Beverley Fiona Holman, Jamie R McClelland, Marc Modat, Brian F Hutton, Kris Thielemans
PET/CT quantification of lung tissue is limited by several difficulties: the lung density and local volume changes during respiration, the anatomical mismatch between PET and CT and the relative contributions of tissue, air and blood to the PET signal (the tissue fraction effect). Air Fraction Correction (AFC) has been shown to improve PET image quantification in the lungs. Methods to correct for the movement and anatomical mismatch involve respiratory gating and image registration techniques. While conventional registration methods only account for spatial mismatch, the Jacobian determinant of the deformable registration transformation field can be used to estimate local volume changes and could therefore potentially be used to correct (i...
October 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29052535/large-cell-neuroendocrine-carcinoma-of-the-kidney-with-cardiac-metastasis-a-case-report
#11
Moeka Shimbori, Kimito Osaka, Takashi Kawahara, Ryo Kasahara, Sayuki Kawabata, Kazuhide Makiyama, Keiichi Kondo, Noboru Nakaigawa, Shoji Yamanaka, Masahiro Yao
BACKGROUND: Primary large cell neuroendocrine carcinoma of the kidney is a rare and generally very aggressive disease. We present a case of a patient with primary large cell neuroendocrine carcinoma of the kidney with cardiac metastasis. CASE PRESENTATION: A 59-year-old Japanese man presented to his previous physician with hematuria. Computed tomography revealed masses in the heart and right kidney, and fluorodeoxyglucose-positron emission tomography showed abnormal uptake in the heart...
October 20, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29052514/five-fraction-sbrt-for-ultra-central-nsclc-in-field-recurrences-following-high-dose-conventional-radiation
#12
Michael C Repka, Nima Aghdam, Shaan K Kataria, Lloyd Campbell, Simeng Suy, Sean P Collins, Eric Anderson, Jonathan W Lischalk, Brian T Collins
PURPOSE/OBJECTIVE: Local treatment options for patients with in-field non-small cell lung cancer (NSCLC) recurrence following conventionally fractionated external beam radiation therapy (CF-EBRT) are limited. Stereotactic body radiation therapy (SBRT) is a promising modality to achieve reasonable local control, although toxicity remains a concern. MATERIALS/METHODS: Patients previously treated with high-dose CF-EBRT (≥59.4 Gy, ≤3 Gy/fraction) for non-metastatic NSCLC who underwent salvage SBRT for localized ultra-central in-field recurrence were included in this analysis...
October 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29052349/relationship-between-ugt1a1-27-and-ugt1a1-7-polymorphisms-and-irinotecan-related-toxicities-in-patients-with-lung-cancer
#13
Minoru Fukuda, Manabu Okumura, Tomomi Iwakiri, Kazuhiko Arimori, Takuya Honda, Kazuma Kobayashi, Hiroaki Senju, Shinnosuke Takemoto, Takaya Ikeda, Hiroyuki Yamaguchi, Katsumi Nakatomi, Nobuko Matsuo, Hiroshi Mukae, Kazuto Ashizawa
BACKGROUND: The objective of this study was to evaluate the effects of gene polymorphisms, including UGT1A1*7, *27, and *29, on the safety of irinotecan therapy. METHODS: The eligibility criteria were: lung cancer patients scheduled to undergo irinotecan therapy, aged ≥ 20 years, with a performance status of 0-2. Thirty-one patients were enrolled and their blood was collected and used to examine the frequency of UGT1A1*6, *7, *27, *28, and *29 polymorphisms and the concentrations of irinotecan, SN-38, and SN-38G after irinotecan therapy...
October 20, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/29052177/prognostic-value-of-osteoprotegerin-and-srankl-in-bronchoalveolar-lavage-fluid-of-patients-with-advanced-non-small-cell-lung-cancer
#14
Wojciech Naumnik, I Płońska, M Ossolińska, J Nikliński, B Naumnik
Osteoprotegerin (OPG) is a soluble decoy receptor for receptor activator of nuclear factor-kappa B ligand (sRANKL). OPG promotes endothelial cell survival and neoangiogenesis. Dysregulation of the OPG/RANKL system has been detected in several tumors. In the present study, we evaluated the clinical usefulness of OPG and sRANKL assessment in bronchoalveolar lavage fluid (BALF) of patients with advanced non-small cell lung cancer (NSCLC). We measured the concentration of OPG and sRANKL in BALF of 44 NSCLC patients and 15 healthy volunteers taken as control subjects...
October 20, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29052027/four-new-diterpenoid-alkaloids-from-aconitum-japonicum-subsp-subcuneatum
#15
Hiroshi Yamashita, Keiko Takeda, Machiko Haraguchi, Yuki Abe, Natsumi Kuwahara, Shota Suzuki, Ayaka Terui, Takumi Masaka, Naoko Munakata, Mariko Uchida, Masashi Nunokawa, Kyousuke Kaneda, Masuo Goto, Kuo-Hsiung Lee, Koji Wada
Diterpenoid alkaloids with remarkable chemical properties and biological activities are frequently found in plants of the genera Aconitum, Delphinium, and Garrya. Accordingly, several diterpenoid alkaloid constituents of Aconitum and Delphinium plants as well as their derivatives exhibited cytotoxic activity against lung, prostate, nasopharyngeal, and vincristine-resistant nasopharyngeal cancer cell lines. Four new C19-diterpenoid alkaloids, 14-anisoyllasianine (1), 14-anisoyl-N-deethylaconine (2), N-deethylaljesaconitine A (3), and N-deethylnevadensine (4), together with 17 known C19- and C20-diterpenoid alkaloids, were isolated in a phytochemical investigation of rhizoma of Aconitum japonicum THUNB...
October 19, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29051600/prediction-of-treatment-response-for-combined-chemo-and-radiation-therapy-for-non-small-cell-lung-cancer-patients-using-a-bio-mathematical-model
#16
Changran Geng, Harald Paganetti, Clemens Grassberger
The goal of this work was to develop a mathematical model to predict Kaplan-Meier survival curves for chemotherapy combined with radiation in Non-Small Cell Lung Cancer patients for use in clinical trial design. The Gompertz model was used to describe tumor growth, radiation effect was simulated by the linear-quadratic model with an α/β-ratio of 10, and chemotherapy effect was based on the log-cell kill model. To account for repopulation during treatment, we considered two independent methods: 1) kickoff-repopulation using exponential growth with a decreased volume doubling time, or 2) Gompertz-repopulation using the gradually accelerating growth rate with tumor shrinkage...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051570/prediction-of-recurrence-in-early-stage-non-small-cell-lung-cancer-using-computer-extracted-nuclear-features-from-digital-h-e-images
#17
Xiangxue Wang, Andrew Janowczyk, Yu Zhou, Rajat Thawani, Pingfu Fu, Kurt Schalper, Vamsidhar Velcheti, Anant Madabhushi
Identification of patients with early stage non-small cell lung cancer (NSCLC) with high risk of recurrence could help identify patients who would receive additional benefit from adjuvant therapy. In this work, we present a computational histomorphometric image classifier using nuclear orientation, texture, shape, and tumor architecture to predict disease recurrence in early stage NSCLC from digitized H&E tissue microarray (TMA) slides. Using a retrospective cohort of early stage NSCLC patients (Cohort #1, n = 70), we constructed a supervised classification model involving the most predictive features associated with disease recurrence...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051494/mir-31-promotes-mammary-stem-cell-expansion-and-breast-tumorigenesis-by-suppressing-wnt-signaling-antagonists
#18
Cong Lv, Fengyin Li, Xiang Li, Yuhua Tian, Yue Zhang, Xiaole Sheng, Yongli Song, Qingyong Meng, Shukai Yuan, Liming Luan, Thomas Andl, Xu Feng, Baowei Jiao, Mingang Xu, Maksim V Plikus, Xing Dai, Christopher Lengner, Wei Cui, Fazheng Ren, Jianwei Shuai, Sarah E Millar, Zhengquan Yu
MicroRNA-mediated post-transcriptional regulation plays key roles in stem cell self-renewal and tumorigenesis. However, the in vivo functions of specific microRNAs in controlling mammary stem cell (MaSC) activity and breast cancer formation remain poorly understood. Here we show that miR-31 is highly expressed in MaSC-enriched mammary basal cell population and in mammary tumors, and is regulated by NF-κB signaling. We demonstrate that miR-31 promotes mammary epithelial proliferation and MaSC expansion at the expense of differentiation in vivo...
October 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/29051447/revelation-of-different-nanoparticle-uptake-behavior-in-two-standard-cell-lines-nih-3t3-and-a549-by-flow-cytometry-and-time-lapse-imaging
#19
André Jochums, Elsa Friehs, Franziska Sambale, Antonina Lavrentieva, Detlef Bahnemann, Thomas Scheper
The uptake of nanomaterials into different cell types is a central pharmacological issue for the determination of nanotoxicity as well as for the development of drug delivery strategies. Most responses of the cells depend on their intracellular interactions with nanoparticles (NPs). Uptake behavior can be precisely investigated in vitro, with sensitive high throughput methods such as flow cytometry. In this study, we investigated two different standard cell lines, human lung carcinoma (A549) and mouse fibroblast (NIH/3T3) cells, regarding their uptake behavior of titanium dioxide NPs...
July 19, 2017: Toxics
https://www.readbyqxmd.com/read/29051386/ets2-anchors-the-prometastatic-function-of-mutant-p53-in-osteosarcoma
#20
REVIEW
Daniel D Liu, Yibin Kang
Mutations in the tumor suppressor p53 occur in a majority of human cancers. Some gain-of-function (GOF) p53 mutations endow tumor cells with increased metastatic ability, although our understanding of the underlying mechanism remains incomplete. In this issue of Genes & Development, Pourebrahim and colleagues (pp. 1847-1857) develop a new mouse model of osteosarcoma in which a GOF mutant p53 allele is expressed specifically in osteoblasts, while the tumor microenvironment remains wild type for p53, allowing for the study of cell-autonomous functions...
September 15, 2017: Genes & Development
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