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lung cancer,radiotherapy

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https://www.readbyqxmd.com/read/28716463/combination-strategies-on-the-basis-of-immune-checkpoint-inhibitors-in-non-small-cell-lung-cancer-where-do-we-stand
#1
REVIEW
Meng Qiao, Tao Jiang, Shengxiang Ren, Caicun Zhou
The era of immune checkpoint inhibitors, especially programmed death-1 (PD-1)/programmed death ligand-1 (PD-L1) antibodies in the treatment of advanced non-small-cell lung cancer (NSCLC) is coming. Because of the lack of the definite biomarkers to select the optimal responders, only approximately 20% of patients with advanced NSCLC would respond to single checkpoint inhibitors-based immunotherapy. Moreover, primary or acquired resistance to conventional therapies is inevitable in most cases. Thus, combinations are pushed to move forward to be an alternative strategy and surely, it would be a future direction...
June 23, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28713681/the-use-of-tcp-based-eud-to-rank-and-compare-lung-radiotherapy-plans-in-silico-study-to-evaluate-the-correlation-between-tcp-with-physical-quality-indices
#2
Abdulhamid Chaikh, Jacques Balosso
BACKGROUND: To apply the equivalent uniform dose (EUD) radiobiological model to estimate the tumor control probability (TCP) scores for treatment plans using different radiobiological parameter settings, and to evaluate the correlation between TCP and physical quality indices of the treatment plans. METHODS: Ten radiotherapy treatment plans for lung cancer were generated. The dose distributions were calculated using anisotropic analytical algorithm (AAA). Dose parameters and quality indices derived from dose volume histograms (DVH) for target volumes were evaluated...
June 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28712978/local-radiotherapy-intensification-for-locally-advanced-non-small-cell-lung-cancer-a-call-to-arms
#3
REVIEW
Noah S Kalman, Elisabeth Weiss, Paul R Walker, Julian G Rosenman
Chemoradiotherapy, the standard of care for locally advanced non-small-cell lung cancer (NSCLC), often fails to eradicate all known disease. Despite advances in chemotherapeutic regimens, locally advanced NSCLC remains a difficult disease to treat, and locoregional failure remains common. Improved radiographic detection can identify patients at significant risk of locoregional failure after definitive treatment, and newer methods of escalating locoregional treatment may allow for improvements in locoregional control with acceptable toxicity...
June 16, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28712277/moderate-hypofractionated-image-guided-thoracic-radiotherapy-for-locally-advanced-node-positive-non-small-cell-lung-cancer-patients-with-very-limited-lung-function-a-case-report
#4
Farkhad Manapov, Olarn Roengvoraphoj, Minglun Li, Chukwuka Eze
Patients with locally advanced lung cancer and very limited pulmonary function (forced expiratory volume in 1 second [FEV1] ≤ 1 L) have dismal prognosis and undergo palliative treatment or best supportive care. We describe two cases of locally advanced node-positive non-small cell lung cancer (NSCLC) patients with very limited lung function treated with induction chemotherapy and moderate hypofractionated image-guided radiotherapy (Hypo-IGRT). Hypo-IGRT was delivered to a total dose of 45 Gy to the primary tumor and involved lymph nodes...
June 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/28712276/optimal-dose-and-volume-for-postoperative-radiotherapy-in-brain-oligometastases-from-lung-cancer-a-retrospective-study
#5
Seung Yeun Chung, Jong Hee Chang, Hye Ryun Kim, Byoung Chul Cho, Chang Geol Lee, Chang-Ok Suh
PURPOSE: To evaluate intracranial control after surgical resection according to the adjuvant treatment received in order to assess the optimal radiotherapy (RT) dose and volume. MATERIALS AND METHODS: Between 2003 and 2015, a total of 53 patients with brain oligometastases from non-small cell lung cancer (NSCLC) underwent metastasectomy. The patients were divided into three groups according to the adjuvant treatment received: whole brain radiotherapy (WBRT) ± boost (WBRT ± boost group, n = 26), local RT/Gamma Knife surgery (local RT group, n = 14), and the observation group (n = 13)...
June 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/28711384/radical-treatment-of-stage-ii-non-small-cell-lung-cancer-with-nonsurgical-approaches-a-multi-institution-report-of-outcomes
#6
Shaan Dudani, Xiaofu Zhu, Daniel W Yokom, Andrew Yamada, Cheryl Ho, Jason R Pantarotto, Natasha B Leighl, Tinghua Zhang, Paul Wheatley-Price
INTRODUCTION: Standard management of stage II non-small-cell lung cancer (NSCLC) is surgery, often followed by adjuvant chemotherapy. However, some patients do not undergo surgery for various reasons. We examined outcomes in this defined patient group. METHODS: We reviewed the records of patients with stage II NSCLC treated nonsurgically with curative intent from 2002 to 2012 across 3 academic cancer centers. Data collected included demographics, comorbidities, staging, treatments, and survival...
June 21, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28711032/influence-of-the-number-and-interval-of-treatment-cycles-on-cytokine-induced-killer-cells-and-their-adjuvant-therapeutic-effects-in-advanced-non-small-cell-lung-cancer-nsclc
#7
Yuanlong Gu, Huimin Lv, Juan Zhao, Qi Li, Guannan Mu, Jiade Li, Jiazi Wuyang, Ge Lou, Ruitao Wang, Yanqiao Zhang, Xiaoyi Huang
OBJECTIVE: Cytokine-induced killer (CIK) cells have important therapeutic effects in adoptive cell transfer (ACT) for the treatment of various malignancies. In this study, we focused on in vitro expansion of CIK cells and their clinical efficacy in combination with chemotherapy in patients with advanced non-small-cell lung cancer (NSCLC). METHODS: A total of 64 patients with NSCLC (enrolled from 2011 to 2012), including 32 patients who received chemotherapy alone or with sequential radiotherapy (conventional treatment, control group) and 32 patients who received conventional treatment and sequential CIK infusion (study group), were retrospectively analyzed...
July 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28710886/the-cellular-and-molecular-mechanism-of-radiation-induced-lung-injury
#8
Yijuan Huang, Weiqiang Zhang, Fangrong Yu, Fu Gao
The lung is one of several moderately radiosensitive organs. Radiation-induced lung injury (RILI), including acute radiation pneumonitis and chronic radiation-induced pulmonary fibrosis, occurs most often in radiotherapy of lung cancer, esophageal cancer, and other thoracic cancers. Clinical symptoms of RILI include dry cough, shortness of breath, chest pain, fever, and even severe respiratory failure and death. The occurrence of RILI is a complex process that includes a variety of cellular and molecular interactions which ultimately leads to large fibroblast accumulation, proliferation, and differentiation, resulting in excessive extracellular matrix deposits, causing pulmonary fibrosis...
July 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28709816/-current-knowledge-on-perioperative-treatments-of-non-small-cell-lung-carcinomas
#9
REVIEW
S Brosseau, C Naltet, M Nguenang, V Gounant, P Mordant, B Milleron, Y Castier, G Zalcman
Surgery is still the main treatment in early-stage of non-small cell lung cancer with 5-year survival of stage IA patients exceeding 80%, but 5-year survival of stage II patients rapidly decreasing with tumor size, N status, and visceral pleura invasion. The major metastatic risk in such patients has supported clinical research assessing systemic or loco-regional perioperative treatments. Modern phase 3 trials clearly validated adjuvant or neo-adjuvant platinum-based chemotherapy in resected stage I-III patients as a standard treatment of which value has been reassessed several independent meta-analyses, showing a 5% benefit in 5y-survival, and a decrease of the relative risk for death around from 12 to 25%...
July 11, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28707988/first-clinical-report-of-helical-tomotherapy-with-simultaneous-integrated-boost-for-synchronous-bilateral-breast-cancer
#10
Tabassum Wadasadawala, Shanu Jain, Siji Paul, Reena Phurailatpam, Kishore Joshi, Palak Popat, Sandip Tandon, Aruna Alahari, Rajiv Sarin
OBJECTIVE: Radiotherapy for synchronous bilateral breast cancer (SBBC) is technically very challenging. This study reports the clinical feasibility, dosimetry and safety of helical tomotherapy (HT) with simultaneous integrated boost (SIB) in patients treated with adjuvant radiotherapy for SBBC. MATERIAL AND METHODS: Twenty one women with SBBC treated with HT from January 2013 to June 2016 were retrospectively evaluated. Radiation lung toxicity was assessed using pulmonary function test (PFT) and high resolution computerized tomography scan (HRCT) scan at baseline and 1 year post RT in 18 patients...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28702337/linear-ebus-guided-fiducial-marker-placement-to-guide-radiotherapy-for-endobronchial-radiographically-occult-synchronous-primary-squamous-cell-carcinoma-of-the-lung
#11
David Maurice Chambers, Gregory John Pfister, Umair Ahmad Gauhar
Radiation therapy has emerged as a useful alternative therapy for patients with early-stage, non-resectable lung cancer. In patients whose malignancies are difficult to localize on computed tomography imaging, such therapy becomes difficult. Fiducial markers are frequently placed in peripheral pulmonary lesions to assist radiation therapy. Although placement of markers under linear endobronchial ultrasonography within mediastinal and hilar lymph nodes has been reported, no strategy has been described to assist radiotherapy of purely endobronchial tumors...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28701900/selection-of-patients-with-left-breast-cancer-for-deep-inspiration-breath-hold-radiotherapy-technique-results-of-a-prospective-study
#12
Beata Czeremszyńska, Stanisław Drozda, Michał Górzyński, Lucyna Kępka
AIM: To assess prospectively which patients with left breast cancer have the dosimetric benefit from the use of deep-inspiration breath-hold radiotherapy (DIBH-RT). BACKGROUND: Improvement in selection of patients for DIBH-RT would spare time of radiotherapy staff by removing the need for preparation of two comparative treatment plans. MATERIALS AND METHODS: Thirty-one patients qualified for whole left breast irradiation underwent breath-hold training and their free-breathing (FB) and DIBH planning-CT were included in the analysis of dosimetric outcome...
September 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28701224/the-150-most-important-questions-in-cancer-research-and-clinical-oncology-series-questions-40-49
#13
EDITORIAL
(no author information available yet)
Since the beginning of 2017, Chinese Journal of Cancer has published a series of important questions in cancer research and clinical oncology, which sparkle diverse thoughts, interesting communications, and potential collaborations among researchers all over the world. In this article, 10 more questions are presented as followed. Question 40. Why do mice being used as tumorigenesis models raised in different places or different conditions possess different tumor formation rate? Question 41. How could we generate more effective anti-metastasis drugs? Question 42...
July 13, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28699909/comparison-of-biological-target-volume-metrics-based-on-fdg-pet-ct-and-4dct-for-primary-non-small-cell-lung-cancer
#14
Yingjie Zhang, Jianbin Li, Yili Duan, Wei Wang, Fengxiang Li, Qian Shao, Min Xu
Fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) and four-dimensional CT (4DCT) are used in several methods for defining the biological target volume (BTV) in primary non-small cell lung cancer (NSCLC). Disagreements between the assessments using these methodologies make the use of BTV for radiotherapy planning controversial. In this study, we compared existing methods with our proposed internal biological target volume (IBTV) metric, derived by combining internal target volume (ITV) and BTV metrics...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28697853/inhibition-of-ataxia-telangiectasia-related-3-atr-improves-therapeutic-index-in-preclinical-models-of-non-small-cell-lung-cancer-nsclc-radiotherapy
#15
Victoria Dunne, Mihaela Ghita, Donna M Small, Caroline B M Coffey, Sinead Weldon, Clifford C Taggart, Sarah O Osman, Conor K McGarry, Kevin M Prise, Gerard G Hanna, Karl T Butterworth
BACKGROUND AND PURPOSE: To evaluate the impact of ATR inhibition using AZD6738 in combination with radiotherapy on the response of non-small cell lung cancer (NSCLC) tumour models and a murine model of radiation induced fibrosis. MATERIALS AND METHODS: AZD6738 was evaluated as a monotherapy and in combination with radiation in vitro and in vivo using A549 and H460 NSCLC models. Radiation induced pulmonary fibrosis was evaluated by cone beam computed tomography (CBCT) and histological staining...
July 8, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28697271/encouraging-long-term-outcomes-reported-in-patients-with-stage-i-non-small-cell-lung-cancer-treated-with-stereotactic-ablative-radiotherapy
#16
Mary Kay Barton
No abstract text is available yet for this article.
July 11, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28693798/brain-metastases-from-non-small-cell-lung-carcinoma-changing-concepts-for-improving-patients-outcome
#17
REVIEW
Chloé Rancoule, Alexis Vallard, Jean-Baptiste Guy, Sophie Espenel, Peng Diao, Cyrus Chargari, Nicolas Magné
The management of Non Small Cell Lung Cancer (NSCLC) brain metastases is challenging, as this frequent complication negatively impacts patients' quality of life, and can be a life-threatening event. Through a review of the literature, we discuss the main therapeutic options and the recent developments that improved (and complicated) the management of NSCLC brain metastases patients. Most current validated approaches are local with exclusive or combined surgery, whole brain radiotherapy (WBRT) and stereotactic radiotherapy (SRT)...
August 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28693276/examination-of-the-predictive-factors-of-the-response-to-whole-brain-radiotherapy-for-brain-metastases-from-lung-cancer-using-mri
#18
Shuri Aoki, Tomonori Kanda, Noriyuki Matsutani, Nobuhiko Seki, Masafumi Kawamura, Shigeru Furui, Hideomi Yamashita
Previous studies have been conducted on the prognostic factors for overall survival in patients with brain metastases (BMs) following whole brain radiotherapy (WBRT). However, there have been a small number of studies regarding the prognostic factors for the response of tumor to WBRT. The aim of the present study was to identify the predictive factors for the response to WBRT from the point of view of reduction of tumor using magnetic resonance imaging. A retrospective analysis of 62 patients with BMs from primary lung cancer treated with WBRT was undertaken...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28693198/pulmonary-toxicity-generated-from-radiotherapeutic-treatment-of-thoracic-malignancies
#19
Guodong Deng, Ning Liang, Jian Xie, Hui Luo, Lili Qiao, Jingxin Zhang, Dawei Wang, Jiandong Zhang
Radiation-induced lung injury (RILI) remains a major obstacle for thoracic radiotherapy for the treatment of lung cancer, esophageal cancer and lymphoma. It is the principal dose-limiting complication, and can markedly impair the therapeutic ratio as well as a patient's quality of life. The current review presents the relevant concepts associated with RILI, including the pathogenic mechanisms and the potential treatment strategies, so as to achieve a general understanding of this issue. RILI comprises an acute radiation pneumonitis phase and subsequent late lung fibrosis...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28690355/evaluation-of-lung-tumor-motion-management-in-radiation-therapy-with-dynamic-mri
#20
Seyoun Park, Rana Farah, Steven M Shea, Erik Tryggestad, Russell Hales, Junghoon Lee
Surrogate-based tumor motion estimation and tracing methods are commonly used in radiotherapy despite the lack of continuous real time 3D tumor and surrogate data. In this study, we propose a method to simultaneously track the tumor and external surrogates with dynamic MRI, which allows us to evaluate their reproducible correlation. Four MRI-compatible fiducials are placed on the patient's chest and upper abdomen, and multi-slice 2D cine MRIs are acquired to capture the lung and whole tumor, followed by two-slice 2D cine MRIs to simultaneously track the tumor and fiducials, all in sagittal orientation...
February 11, 2017: Proceedings of SPIE
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