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Radiotherapy cancer biomarkers

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https://www.readbyqxmd.com/read/28525901/direct-inhibition-of-stat-signaling-by-platinum-drugs-contributes-to-their-anti-cancer-activity
#1
Stanleyson V Hato, Carl G Figdor, Susumu Takahashi, Anja E Pen, Altuna Halilovic, Kalijn F Bol, Angela Vasaturo, Yukie Inoue, Nienke de Haas, Dagmar Verweij, Carla M L Van Herpen, Johannes H Kaanders, Johan H J M van Krieken, Hanneke W M Van Laarhoven, Gerrit K J Hooijer, Cornelis J A Punt, Akira Asai, I Jolanda M de Vries, W Joost Lesterhuis
Platinum-based chemotherapeutics are amongst the most powerful anti-cancer drugs. Although their exact mechanism of action is not well understood, it is thought to be mediated through covalent DNA binding. We investigated the effect of platinum-based chemotherapeutics on signaling through signal transducer and activator of transcription (STAT) proteins, which are involved in many oncogenic signaling pathways. We performed in vitro experiments in various cancer cell lines, investigating the effects of platinum chemotherapeutics on STAT phosphorylation and nuclear translocation, the expression of STAT-modulating proteins and downstream signaling pathways...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28521812/radiotherapy-improves-serum-fatty-acids-and-lipid-profile-in-breast-cancer
#2
Sana Shaikh, Naseem Aslam Channa, Farha Naz Talpur, Muhammad Younis, Naila Tabassum
BACKGROUND: Breast cancer is a disease with diverse clinical symptoms, molecular profiles, and its nature to response its therapeutic treatments. Radiotherapy (RT), along with surgery and chemotherapy is a part of treatment in breast cancer. The aim of present study was to investigate pre and post treatment effects of radiotherapy in serum fatty acids and its lipids profile in patients with breast cancer. METHODS: In this comparative as well as follow up study, Serum fatty acids were performed by gas chromatography to investigate fatty acids and Microlab for analysis of lipid profile...
May 18, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28504589/analysis-of-saliva-gene-expression-during-head-and-neck-cancer-radiotherapy-a-pilot-study
#3
Jerome Lacombe, Carla Brooks, Chengcheng Hu, Emmanuel Menashi, Ronald Korn, Farley Yang, Frederic Zenhausern
Saliva, a biological fluid, is a promising candidate for novel approaches to prognosis, clinical diagnosis, monitoring and management of patients with both oral and systemic diseases. However, to date, saliva has not been widely investigated as a biomarker for radiation exposure. Since white blood cells are also present in saliva, it should theoretically be possible to investigate the transcriptional biomarkers of radiation exposure classically studied in whole blood. Therefore, we collected whole blood and saliva samples from eight head and neck cancer patients before the start of radiation treatment, at mid-treatment and after treatment...
May 15, 2017: Radiation Research
https://www.readbyqxmd.com/read/28486947/diagnostic-and-treatment-modalities-for-patients-with-cervical-lymph-node-metastases-of-unknown-primary-site-current-status-and-challenges
#4
REVIEW
Jens Müller von der Grün, Aykut Tahtali, Shahram Ghanaati, Claus Rödel, Panagiotis Balermpas
BACKGROUND AND PURPOSE: This review aims to provide a comprehensive overview of the literature and elucidate open questions for future clinical trials concerning diagnostics and treatment modalities for cervical cancer of unknown primary (CUP). METHODS: A literature search for head and neck CUP was performed with focus on diagnostics and therapies as well as molecular markers. RESULTS: High level evidence on CUP is limited. However, it seems that a consensus exists regarding the optimal diagnostic procedures...
May 10, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28482670/immune-checkpoint-inhibitors-in-lung-cancer-current-status-and-future-directions
#5
Yun Fan, Weimin Mao
Recently, the immune checkpoint inhibitors that target programmed death 1 (PD-1)/programmed death ligand 1 (PD-L1) have made a breakthrough in treating advanced non-small cell lung cancer (NSCLC) with the efficacy of approximately 20%; among which, nivolumab has acquired treatment indications in lung squamous cell carcinoma. The inhibitors targeting cytotoxic T lymphocyte associated antigen 4 (CTLA-4) are also undergoing clinical trials. Researches on immune checkpoint inhibitors have been rapidly implemented in a variety of different types of lung cancer, such as small cell lung cancer (SCLC) and locally advanced NSCLC, and these inhibitors began to be applied in combination with some established treatments, including chemotherapy, targeting therapy and radiotherapy...
April 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28477336/rad51-as-a-potential-surrogate-marker-for-dna-repair-capacity-in-solid-malignancies
#6
REVIEW
Mariam Gachechiladze, Josef Škarda, Alex Soltermann, Markus Joerger
Targeting deficient mechanisms of cellular DNA repair still represents the basis for the treatment of the majority of solid tumors, and increased DNA repair capacity is a hallmark mechanism of resistance not only to DNA-damaging treatments such as cytotoxic drugs and radiotherapy, but also to small molecule targeted drugs such as inhibitors of poly-ADP ribose polymerase (PARP). Hence, there is substantial medical need for potent and convenient biomarkers of individual response to DNA-targeted treatment in personalized cancer care...
May 6, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28475407/diagnosis-staging-and-risk-stratification-in-prostate-cancer-utilizing-diagnostic-tools-to-avoid-unnecessary-therapies-and-side-effects
#7
Louis Rodgers, Cody J Peer, William D Figg
A lack of appropriate diagnostic tools for prostate cancer has led to overdiagnosis and over treatment. In a recent publication in the New England Journal of Medicine, Hamdy et al showed no difference in the outcomes of patients that had undergone either radical prostatectomy, radiotherapy, or active monitoring. In an effort to enhance clinical stratification, the development of improved, more accurate diagnostic tools is actively being pursued. Herein, we explore recent advances in prostate cancer screening, including biomarker assays, genetic testing, and specialized fields, such as mathematical oncology...
May 5, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28464906/adjuvant-radiotherapy-after-radical-cystectomy-for-patients-with-muscle-invasive-bladder-cancer-a-phase-ii-trial
#8
Valérie Fonteyne, Piet Dirix, Sara Junius, Elke Rammant, Piet Ost, Gert De Meerleer, Martijn Swimberghe, Karel Decaestecker
BACKGROUND: Neo-adjuvant chemotherapy followed by radical cystectomy with extended pelvic lymph node dissection is considered to be the treatment of choice for patients with muscle invasive bladder cancer (MIBC). Despite this aggressive treatment the outcome is poor and ultimately, 30% of the patients with ≥pT3 tumors develop a pelvic recurrence. We hypothesize that postoperative adjuvant external beam radiotherapy (EBRT) might prevent local and lymph node recurrence and improve disease free- and overall survival as loco-regional recurrence is linked to the development of distant metastasis...
May 2, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28454462/effects-of-irradiation-on-radioresistance-hotair-and-epithelial-mesenchymal-transition-cancer-stem-cell-marker-expression-in-esophageal-squamous-cell-carcinoma
#9
Chunli Da, Li Wu, Yuting Liu, Ruozheng Wang, Ruiguang Li
Radiotherapy is a common therapeutic strategy used to treat esophageal squamous cell carcinoma (ESCC). However, tumor cells often develop radioresistance, thereby reducing treatment efficacy. Here, we aimed to identify the mechanisms through which ESCC cells develop radioresistance and identify associated biomarkers. Eca109 cells were exposed to repeated radiation at 2 Gy/fraction for a total dose of 60 Gy (Eca109R60/2Gy cells). MTT and colony formation assays were performed to measure cell proliferation and compare the radiation biology parameters of Eca109 and Eca109R60/2Gy cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454432/prognostic-and-predictive-role-of-cox-2-xrcc1-and-rassf1-expression-in-patients-with-esophageal-squamous-cell-carcinoma-receiving-radiotherapy
#10
Yaowen Zhang, Shangwen Dong, Ruiping Xu, Yanping Yang, Zhiyong Zheng, Xiaojing Wang, Runchuan Ren, Ronggang Sun, Ming Li, Haijun Yang, Yuting Huang, Fuyou Zhou, Anping Zheng
Identification of biomarkers for predicting radiosensitivity would be useful for administering individualized radiotherapy (RT) to patients with esophageal cancer. The aim of the present study was to evaluate the association between cyclooxygenase-2 (COX-2), X-ray repair cross complementing group 1 (XRCC1), ras association domain family 1 (RASSF1) protein expression, clinicopathological characteristics, radiosensitivity and survival rate in 76 patients with esophageal squamous cell carcinoma (ESCC) who were treated with RT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28449496/the-mechanisms-of-radioresistance-in-esophageal-squamous-cell-carcinoma-and-current-strategies-in-radiosensitivity
#11
REVIEW
Guang-Zong Chen, Hong-Cheng Zhu, Wang-Shu Dai, Xiao-Ning Zeng, Jin-Hua Luo, Xin-Chen Sun
Esophageal cancer is the eighth most common cancer and the sixth leading cause of cancer-related death worldwide. Surgery is the primary form of treatment, but the survival is poor, especially for patients with locally advanced esophageal cancer. Radiotherapy has been a critical treatment option that may be combined with chemotherapy in patients with unresectable esophageal cancer. However, resistance to chemoradiotherapy might result in treatment failures and cancer relapse. This review will mainly focus on the possible cellular mechanisms and tumor-associated microenvironmental (TAM) factors that result in radioresistance in patients with esophageal cancer...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28443095/radiotherapy-associated-long-term-modification-of-expression-of-the-inflammatory-biomarker-genes-arg1-bcl2l1-and-myc
#12
Grainne Manning, Aleš Tichý, Igor Sirák, Christophe Badie
Ionizing radiation (IR) exposure of cells in vitro and in vivo triggers a complex cellular response among which modifications of gene expression have been consistently reported. Nevertheless, little is currently known about the transcriptionally responsive genes which play a role in the inflammation response. In order to improve our understanding of such transcriptional response to radiation in vivo, we simultaneously monitored the expression of 249 genes associated with the inflammation response over the course of the radiotherapy treatment in blood of patients treated for endometrial or head and neck cancer...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28430589/ier5-as-a-promising-predictive-marker-promotes-irradiation-induced-apoptosis-in-cervical-cancer-tissues-from-patients-undergoing-chemoradiotherapy
#13
Yang Liu, Ming Tian, Hui Zhao, Yue He, Fengshuang Li, Xiunan Li, Xinping Yu, Kuke Ding, Pingkun Zhou, Yumei Wu
PURPOSE: To define the role of immediate-early 5 (IER5) gene as a promising biomarker in predicting the radiosensitivity and prognosis of cervical cancer patients receiving cisplatin-based concurrent chemoradiotherapy (DDP-CCRT). RESULTS: Our investigations found that IER5 level was markedly elevated in cervical cancer patients after being treated with irradiation, which indicated IER5 was closely dose induced. By contrast, the correlation between IER5 and radiosensitivity cannot be confirmed by the present study...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418872/overexpression-of-fli-1-in-astrocytoma-is-associated-with-poor-prognosis
#14
Hung-Pei Tsai, Tai-Hsin Tsai, Ya-Ju Hsieh, Yi-Ting Chen, Chih-Ling Lee, Yi-Cheng Tsai, Ting-Chang She, Chih-Lung Lin, Chee-Yin Chai, Aij-Lie Kwan
BACKGROUND: Astrocytoma, a common and highly malignant type of brain tumor, is associated with poor overall survival despite advances in surgical treatment, radiotherapy, and chemotherapy. The nuclear transcription factor Fli-1 has been shown to increase cellular proliferation and tumorigenesis in many types of cancer; however, previous reports have not described a correlation between clinical outcomes and Fli-1 in astrocytoma patients. The present study aimed to elucidate the clinical role of Fli-1 in astrocytoma...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417167/gene-expression-levels-of-gamma-glutamyl-hydrolase-in-tumor-tissues-may-be-a-useful-biomarker-for-the-proper-use-of-s-1-and-tegafur-uracil-leucovorin-in-preoperative-chemoradiotherapy-for-patients-with-rectal-cancer
#15
Sotaro Sadahiro, T Suzuki, A Tanaka, K Okada, G Saito, H Miyakita, T Ogimi, H Nagase
PURPOSE: Preoperative chemoradiotherapy (CRT) using 5-fluorouracil (5-FU)-based chemotherapy is the standard of care for rectal cancer. The effect of additional chemotherapy during the period between the completion of radiotherapy and surgery remains unclear. Predictive factors for CRT may differ between combination chemotherapy with S-1 and with tegafur-uracil/leucovorin (UFT/LV). METHODS: The subjects were 54 patients with locally advanced rectal cancer who received preoperative CRT with S-1 or UFT/LV...
April 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28410832/a-dose-finding-and-biomarker-evaluation-phase-ib-study-of-everolimus-in-association-with-5-fluorouracil-and-pelvic-radiotherapy-as-neoadjuvant-treatment-of-locally-advanced-rectal-cancer-e-larc-study
#16
Fabio Gelsomino, Federica Bertolini, Gabriele Luppi, Andrea Spallanzani, Elisa Pettorelli, Luca Reggiani Bonetti, Bruno Meduri, Gianrocco Manco, Pierfranco Conte, Stefano Cascinu
BACKGROUND: During the past 20 years, considerable improvement has occurred in the treatment of patients with locally advanced rectal cancer (LARC). With the introduction of multimodal treatment, refinements in preclinical staging and improvements in surgical skills, local relapse is no longer the major problem for patients with LARC. However, many patients die of metastatic disease. The present phase Ib study aimed to establish the maximum tolerated dose of everolimus combined with 5-fluorouracil and radiotherapy in patients with LARC...
March 24, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28408882/targeted-nanotechnology-in-glioblastoma-multiforme
#17
REVIEW
Talita Glaser, Inbo Han, Liquan Wu, Xiang Zeng
Gliomas, and in particular glioblastoma multiforme, are aggressive brain tumors characterized by a poor prognosis and high rates of recurrence. Current treatment strategies are based on open surgery, chemotherapy (temozolomide) and radiotherapy. However, none of these treatments, alone or in combination, are considered effective in managing this devastating disease, resulting in a median survival time of less than 15 months. The efficiency of chemotherapy is mainly compromised by the blood-brain barrier (BBB) that selectively inhibits drugs from infiltrating into the tumor mass...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28402275/the-value-of-fats-expression-in-predicting-sensitivity-to-radiotherapy-in-breast-cancer
#18
Jun Zhang, Nan Wu, Tiemei Zhang, Tao Sun, Yi Su, Jing Zhao, Kun Mu, Zhao Jin, Ming Gao, Juntian Liu, Lin Gu
PURPOSE: The fragile-site associated tumor suppressor (FATS) is a newly identified tumor suppressor involved in radiation-induced tumorigenesis. The purpose of this study was to characterize FATS expression in breast cancers about radiotherapy benefit, patient characteristics, and prognosis. RESULTS: The expression of FATS mRNA was silent or downregulated in 95.2% of breast cancer samples compared with paired normal controls (P < .0001). Negative status of FATS was correlated with higher nuclear grade (P = ...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28397102/the-role-of-fluoropirimidines-in-gastrointestinal-tumours-from-the-bench-to-the-bed
#19
REVIEW
Jorge Hernando-Cubero, Ignacio Matos-García, Vicente Alonso-Orduña, Jaume Capdevila
PURPOSE: Gastrointestinal tumours are one of the most common types of cancer. Therapeutic options include surgery, radiotherapy, local ablation techniques, targeted agents, and chemotherapy. Fluoroprimidines are one of the most active drug families in digestive tumours and remains the cornerstone of the most commonly used chemotherapy schemes. METHODS: We review the molecular basis of thymidylate synthase inhibition and the mechanisms of action of 5-fluorouracil, next generation oral fluoropyrimidines (capecitabine, tegafur and the latest S-1 and TAS-102) and antifolates...
April 10, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28386299/highlights-from-the-ecancer-future-horizons-in-lung-cancer-conference-1-2-september-2016-focusing-on-the-future-of-treatment-for-nsclc-and-sclc
#20
Kayleigh Bassiri, Linda Cairns, Gordon McVie, Michael Seckl
The 'Future Horizons in Lung Cancer' meeting was designed to bring leading scientists together alongside clinicians to discuss the most recent advances in lung cancer pathophysiology and treatment. The aim was to take those attending the event on a journey through decades of lung cancer research and understanding, with topics spanning from screening and surgical care to "omics" approaches for drug target and biomarker discovery. There were also several talks describing the role of radiotherapy in lung cancer and advancements in imaging techniques, aiding surgeons in their attempts to resect early lesions...
2017: Ecancermedicalscience
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