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https://www.readbyqxmd.com/read/28429473/surgery-for-limited-stage-small-cell-lung-cancer
#1
REVIEW
Hayley Barnes, Katharine See, Stephen Barnett, Renée Manser
BACKGROUND: Current treatment guidelines for limited-stage small-cell lung cancer (SCLC) recommend concomitant platinum-based chemo-radiotherapy plus prophylactic cranial irradiation, based on the premise that SCLC disseminates early, and is chemosensitive. However, although there is usually a favourable initial response, relapse is common and the cure rate for limited-stage SCLC remains relatively poor. Some recent clinical practice guidelines have recommended surgery for stage 1 (limited) SCLC followed by adjuvant chemotherapy, but this recommendation is largely based on the findings of observational studies...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28429140/a-phase-i-ii-study-on-stereotactic-body-radiotherapy-with-real-time-tumor-tracking-using-cyberknife-based-on-the-monte-carlo-algorithm-for-lung-tumors
#2
Hiromitsu Iwata, Satoshi Ishikura, Taro Murai, Michio Iwabuchi, Mitsuhiro Inoue, Koshi Tatewaki, Seiji Ohta, Naoki Yokota, Yuta Shibamoto
BACKGROUND: In this phase I/II study, we assessed the safety and initial efficacy of stereotactic body radiotherapy (SBRT) for lung tumors with real-time tumor tracking using CyberKnife based on the Monte Carlo algorithm. METHODS: Study subjects had histologically confirmed primary non-small-cell lung cancer staged as T1a-T2aN0M0 and pulmonary oligometastasis. The primary endpoint was the incidence of Grade ≥3 radiation pneumonitis (RP) within 180 days of the start of SBRT...
April 20, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28428908/metastatic-squamous-cell-carcinoma-of-colon-from-esophageal-cancer
#3
Natasha Garg, Constance Stoehr, Yan Shi Zhao, Heather Rojas, Chung-Tsen Hsueh
BACKGROUND: Esophageal cancer including squamous cell carcinoma (SCC) and adenocarcinoma represents 4% of all cancers in the United States. Patients with esophageal cancer frequently present with locally advanced disease, and about 40% of patients have evidence of metastatic disease on presentation. Common sites of metastasis include liver, lung and bone. Here, we present a rare case of colonic metastasis from primary esophageal SCC. CASE PRESENTATION: A 60-year-old Caucasian male with a history of 20-pack-year cigarette smoking received surgery and adjuvant chemoradiotherapy for locally advanced SCC of larynx...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28428017/outcomes-and-toxicity-following-high-dose-radiation-therapy-in-15-fractions-for-non-small-cell-lung-cancer
#4
Penny Fang, Cameron W Swanick, Todd A Pezzi, Zhongxing Liao, James Welsh, Steven H Lin, Daniel R Gomez
PURPOSE: Accelerated hypofractionated radiation therapy (AHRT) is increasingly used for select lung cancer patients. We evaluated clinical outcomes and predictors of pulmonary/esophageal toxicity in patients treated with ≥52.5 Gy in 15 fractions. METHODS AND MATERIALS: We evaluated 229 patients treated with radiation therapy doses ≥52.5 Gy in 15 fractions for non-small cell lung cancer from January 2009 through January 2016. Toxicity was scored using Common Terminology Criteria for Adverse Events, v4...
March 9, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28424839/reirradiation-of-recurrent-node-positive-non-small-cell-lung-cancer-after-previous-stereotactic-radiotherapy-for-stage%C3%A2-i-disease-a%C3%A2-multi-institutional-treatment-recommendation
#5
Carsten Nieder, Dirk De Ruysscher, Laurie E Gaspar, Matthias Guckenberger, Minesh P Mehta, Patrick Cheung, Arjun Sahgal
BACKGROUND: Practice guidelines have been developed for early-stage and locally advanced non-small cell lung cancer (NSCLC). However, many common clinical scenarios still require individualized decision making. This is true for locoregional relapse after initial stereotactic radiotherapy (stereotactic body radiation therapy or stereotactic ablative radiotherapy; SBRT or SABR), an increasingly utilized curative treatment option for stage I NSCLC. METHODS: A consortium of expert radiation oncologists was established with the aim of providing treatment recommendations...
April 19, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28423589/role-of-microrna-21-in-radiosensitivity-in-non-small-cell-lung-cancer-cells-by-targeting-pdcd4-gene
#6
Li-Peng Jiang, Chun-Yan He, Zhi-Tu Zhu
This study aims to explore the effects of microRNA-21 (miR-21) on radiosensitivity in non-small cell lung cancer (NSCLC) by targeting programmed cell deanth 4 (PDCD4) and regulating PI3K/AKT/mTOR signaling pathway. Cancer tissues and adjacent normal tissues were collected from 97 NSCLC patients who received a standard radiotherapy regimen. TUNEL assay was applied to determine cell apoptosis in tissues. The qRT-PCR assay was used to detect the expressions of miR-21 expression and PDCD4 mRNA. The protein expressions of PDCD4 and PI3K/AKT/mTOR signaling pathway-related proteins were determined by Western blotting...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422299/incorporation-of-pre-therapy-18-f-fdg-uptake-data-with-ct-texture-features-into-a-radiomics-model-for-radiation-pneumonitis-diagnosis
#7
Gregory J Anthony, Alexandra Cunliffe, Richard Castillo, Ngoc Pham, Thomas Guerrero, Samuel G Armato, Hania Al-Hallaq
PURPOSE: To determine whether the addition of standardized uptake value (SUV) from PET scans to CT lung texture features could improve a radiomics-based model of radiation pneumonitis (RP) diagnosis in patients undergoing radiotherapy. METHODS AND MATERIALS: Anonymized data from 96 esophageal cancer patients (18 RP-positive cases of Grade ≥ 2) were collected including pre-therapy PET/CT scans, pre-/post-therapy diagnostic CT scans and RP status. Twenty texture features (first-order, fractal, Laws' filter and gray-level co-occurrence matrix) were calculated from diagnostic CT scans and compared in anatomically matched regions of the lung...
April 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28421482/cost-effectiveness-of-stereotactic-radiosurgery-and-stereotactic-body-radiation-therapy-a-critical-review
#8
REVIEW
Nataniel H Lester-Coll, David J Sher
PURPOSE OF REVIEW: This review aims to summarize and appraise published cost-effectiveness studies on stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). RECENT FINDINGS: We performed a Medline search of cost-effectiveness studies of SRS, SBRT, and other cancer treatment modalities such as surgery and systemic therapy from 2006 to 2016. We included studies that used both modeling and retrospective review techniques. We excluded studies of benign disease...
June 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28420863/changes-of-systemic-immune-response-after-stereotactic-ablative-radiotherapy-sabr-first-results-of-a-prospective-study-in-early-lung-cancer-patients
#9
Jacek Rutkowski, Tomasz Ślebioda, Zbigniew Kmieć, Renata Zaucha
INTRODUCTION    Among all lung tumors non-small cell lung cancer (NSCLC) is the most common. Conventional conservative treatment in medically inoperable patients with early stage NSCLC has a poor outcome. To improve treatment efficacy stereotactic ablative radiotherapy (SABR) has been developed to enable the delivery of high-dose radiation to the tumor.  OBJECTIVES    This prospective study was conducted to confirm the hypothesis that a sudden death of cancer cells after SABR may lead to systemic immune response changes...
April 18, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28420124/applying-broadband-dielectric-spectroscopy-bds-for-the-biophysical-characterization-of-mammalian-tissues-under-a-variety-of-cellular-stresses
#10
Maria P Souli, Panagiotis Klonos, Adamantia F Fragopoulou, Ifigeneia V Mavragani, Ioannis S Pateras, Nikolaos Kostomitsopoulos, Lukas H Margaritis, Pavlos Zoumpoulis, Loukas Kaklamanis, Dimitris Kletsas, Vassilis G Gorgoulis, Apostolos Kyritsis, Polycarpos Pissis, Alexandros G Georgakilas
The dielectric properties of biological tissues can contribute non-invasively to a better characterization and understanding of the structural properties and physiology of living organisms. The question we asked, is whether these induced changes are effected by an endogenous or exogenous cellular stress, and can they be detected non-invasively in the form of a dielectric response, e.g., an AC conductivity switch in the broadband frequency spectrum. This study constitutes the first methodological approach for the detection of environmental stress-induced damage in mammalian tissues by the means of broadband dielectric spectroscopy (BDS) at the frequencies of 1-10⁶ Hz...
April 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418710/lung-cancer-guidelines-in-sweden-denmark-norway-and-finland-a-comparison
#11
Niels Lyhne Christensen, Antti Jekunen, Sebastian Heinonen, Susanne Oksbjerg Dalton, Torben Riis Rasmussen
BACKGROUND: The Nordic countries are similar in terms of demographics and health care organization. Yet there are marked differences in lung cancer mortality, for which Denmark historically has had the poorest outcome. One of several possible reasons for these differences could have to do with how lung cancer is diagnosed and treated in the different Nordic countries. However, among the four most populous Nordic countries: Sweden, Denmark, Norway and Finland, there is a paucity of knowledge about differences and similarities in recommendations in the national guidelines for non-small cell lung cancer (NSCLC) and the methodology by which the guidelines are developed...
April 18, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28415803/individual-isotoxic-radiation-dose-escalation-based-on-v20-and-advanced-technologies-benefits-unresectable-stage-iii-non-small-cell-lung-cancer-patients-treated-with-concurrent-chemoradiotherapy-long-term-follow-up
#12
Ming Liu, Zhongtang Wang, Tao Zhou, Antang Zhou, Qian Zhao, Hongsheng Li, Hongfu Sun, Wei Huang, BaoSheng Li
Under the assumption that the highest therapeutic ratio could be achieved by increasing the total tumor dose (TTD) to the limits of normal tissues, the phase I trial was conducted in patients with unresectable stage III non-small cell lung cancer treated with concurrent chemoradiotherapy, to determine the feasibility and effects of individual isotoxic radiation dose escalation based on bilateral lung V20 and advanced technologies. Consecutive eligible patients were assigned to cohorts of eight. V20 of each cohort was increased from 27% to 30%, 33%, 35%, 37%, and so on...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415625/coroglaucigenin-enhances-the-radiosensitivity-of-human-lung-cancer-cells-through-nrf2-ros-pathway
#13
Meng Sun, Dong Pan, Yaxiong Chen, Ya Li, Kun Gao, Burong Hu
Seven cardenolides isolated from the ethanol extract of the stems of Calotropis gigantea were evaluated in vitro against human cancer cells and the structure-activity relationships were discussed. The results demonstrated that a compound, named CGN (coroglaucigenin), had better anti-proliferative activity with the IC50 value less than 6 μM among these compounds. Further, we found that CGN displayed much lower cytotoxicity to normal lung epithelial cells (BEAS-2B) than cancer cells (A549). Especially, our results demonstrated that treatment with CGN (1 μM) combined with X-ray irradiation induced higher radiosensitivity in human lung cancer cells (A549, NCI-H460, NCI-H446) but not in BEAS-2B...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415581/tumor-physiological-changes-during-hypofractionated-stereotactic-body-radiation-therapy-assessed-using-multi-parametric-magnetic-resonance-imaging
#14
Heling Zhou, Zhang Zhang, Rebecca Denney, Jessica S Williams, Jeni Gerberich, Strahinja Stojadinovic, Debabrata Saha, John M Shelton, Ralph P Mason
Radiation therapy is a primary treatment for non-resectable lung cancer and hypoxia is thought to influence tumor response. Hypoxia is expected to be particularly relevant to the evolving new radiation treatment scheme of hypofractionated stereotactic body radiation therapy (SBRT). As such, we sought to develop non-invasive tools to assess tumor pathophysiology and response to irradiation. We applied blood oxygen level dependent (BOLD) and tissue oxygen level dependent (TOLD) MRI, together with dynamic contrast enhanced (DCE) MRI to explore the longitudinal effects of SBRT on tumor oxygenation and vascular perfusion using A549 human lung cancer xenografts in a subcutaneous rat model...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414793/radiosensitizing-effect-of-diosmetin-on-radioresistant-lung-cancer-cells-via-akt-signaling-pathway
#15
Zhijie Xu, Yuanliang Yan, Lingfang Xiao, Shuang Dai, Shuangshuang Zeng, Long Qian, Lin Wang, Xue Yang, Yi Xiao, Zhicheng Gong
Radiotherapy is a powerful tool in the treatment of cancer that has the advantage of preserving normal tissues. However, tumor radioresistance currently remains a major impediment to effective RT. Thus, exploring effective radiation sensitizers is urgently needed. In this study, we have shown that diosmetin, the aglycone of the lavonoid glycoside from olive leaves, citrus fruits and some medicinal herbs, has a promising effect on radiotherapy sensitization. In our results, DIO could induce G1 phase arrest and thus enhance the radiosensitivity of radioresistant A549/IR lung cancer cells...
2017: PloS One
https://www.readbyqxmd.com/read/28412751/poly-adp-ribose-polymerase-inhibitor-an-effective-radiosensitizer-in-lung-and-pancreatic-cancers
#16
Kedar Hastak, Steven Bhutra, Renate Parry, James M Ford
The development of stereotactic body radiation therapy (SBRT) has revolutionized radiation therapy for lung cancers and is an emerging treatment option for pancreatic cancers. However, there are many questions on how to optimize its use in chemoradiotherapy. The most relevant addition to radiotherapy regimens are inhibitors of DNA repair and DNA damage response pathways. One such class of agents are inhibitors of poly (ADP-ribose) polymerase (PARP). In this study we examined the effects of the PARP inhibitor LT626 in combination with ionizing radiation in lung and pancreatic cancers...
February 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412093/non-small-cell-lung-cancer-as-a-second-primary-among-patients-with-previous-malignancy-who-is-at-risk
#17
Geena X Wu, Rebecca A Nelson, Jae Y Kim, Dan J Raz
BACKGROUND: Patients with previous malignancies could be at increased risk of non-small cell lung cancer (NSCLC). However, the extent of the risk is unknown for many cancer types; thus, it is unclear who might benefit from screening. MATERIALS AND METHODS: The Surveillance, Epidemiology, and End Results data set from 1992 to 2012 was used to identify patients with previous malignancies who received a diagnosis of NSCLC ≥ 6 months after their initial cancer diagnosis...
March 2, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28410809/a-randomized-phase-ii-trial-of-concurrent-chemoradiation-with-two-doses-of-radiotherapy-60gy-and-66gy-concomitant-with-a-fixed-dose-of-oral-vinorelbine-in-locally-advanced-nsclc
#18
Olfred Hansen, Marianne M Knap, Azza Khalil, Christa H Nyhus, Tine McCulloch, Bente Holm, Carsten Brink, Lone Hoffmann, Tine Schytte
INTRODUCTION: In order to test the best performing radiation dose with a convenient chemotherapy schedule of an oral formulation of radio-sensitizing vinorelbine in inoperable locally advanced non-small cell lung cancer (NSCLC), we performed a randomized phase II trial based on a "pick the winner" design. METHODS: After 2 cycles of neoadjuvant chemotherapy, 117 patients with NSCLC stage IIB-IIIB in performance status 0-1 were randomized to radiotherapy 60Gy/30 fractions or 66Gy/33 fractions concurrent with a fixed dose of oral vinorelbine 50mg administered 3 times weekly...
April 11, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28408078/adoption-of-radiation-technology-among-privately-insured-nonelderly-patients-with-cancer-in-the-united-states-2008-to-2014-a-claims-based-analysis
#19
Hubert Y Pan, Jing Jiang, Ya-Chen Tina Shih, Benjamin D Smith
Despite enthusiasm for advanced radiation technologies, understanding of their adoption in recent years is limited. The aim of this study was to elucidate utilization trends of conventional radiation, intensity-modulated radiotherapy (IMRT), brachytherapy, proton radiotherapy, stereotactic body radiotherapy (SBRT), and stereotactic radiosurgery (SRS) using a large convenience sample of irradiated patients with cancer identified from private insurance claims in the United States. The unit of analysis was a claim corresponding to a fraction of delivered radiotherapy from 2008 to 2014...
April 10, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28403040/playing-the-odds-lung-cancer-surveillance-after-curative-surgery
#20
Ching-Fei Chang, Michael Gould
PURPOSE OF REVIEW: After so-called 'curative' resection, many patients are still at risk for further lung cancer, either as a recurrence or a new metachronous primary. In theory, close follow-up should improve survival by catching relapse early - but in reality, many experts feel that surveillance for recurrence is a waste of time and money. In this article, we explore the reasons behind the controversy, what the current guidelines recommend, and what future solutions are in development that may ultimately resolve this debate...
April 11, 2017: Current Opinion in Pulmonary Medicine
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