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https://www.readbyqxmd.com/read/29129094/rational-combination-of-immunotherapy-for-triple-negative-breast-cancer-treatment
#1
Chia-Wei Li, Seung-Oe Lim, Jennifer L Hsu, Mien-Chie Hung
Recent evidence indicates that tumor infiltrating lymphocytes (TILs), including cytotoxic T cells, are present in the tumor microenvironment of triple-negative breast cancers (TNBC). Despite the presence of cytotoxic T cells, these tumors still develop, progress, and metastasize, suggesting evasion of immune response. One mechanism of immunosuppression is the presence of the T cell inhibitory molecule, programmed death protein 1 (PD-1), on infiltrating T cells and its cognate ligand programmed death ligand 1 (PD-L1) on tumor cells, myeloid dendritic cells (DCs), and macrophages, in the tumor microenvironment...
October 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/29116237/advantages-of-a-technique-using-two-50-degree-arcs-in-simultaneous-integrated-boost-radiotherapy-for-left-sidebreast-cancer
#2
Dan Xi, Yun Ding, Rui Hu, Wendong Gu, Jinming Mu, Qilin Li
This study evaluated radiotherapy techniques with 15 cases for simultaneous integrated boost to treat whole left breast and tumor bed following breast conserving surgery. Treatment plans were generated using three techniques: volumetric modulated arc therapy (VMAT) with a partial arc of 190° (1ARC), VMAT with two tangential mini-arcs of 50° each (2TARC) and intensity modulated radiation therapy with four fixed angle fields (4IMRT). Dosimetric parameters for the whole breast (Target), the boost tumor bed (Boost), and surrounding normal organs were compared...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29110491/deep-learning-accurately-predicts-estrogen-receptor-status-in-breast-cancer-metabolomics-data
#3
Fadhl M Alkawaa, Kumardeep Chaudhary, Lana X Garmire
Metabolomics holds the promise as a new technology to diagnose highly heterogeneous diseases. Conventionally, metabolomics data analysis for diagnosis is done using various statistical and machine learning based classification methods. However, it remains unknown if the deep neural network, a class of increasingly popular machine learning methods, is suitable to classify metabolomics data. Here we use a cohort of 271 breast cancer tissues, 204 positive estrogen receptor (ER+) and 67 negative estrogen receptor (ER-), to test the accuracies of autoencoder, a deep learning (DL) framework, as well as six widely used machine learning models, namely Random Forest (RF), Support Vector Machines (SVM), Recursive Partitioning and Regression Trees (RPART), Linear Discriminant Analysis (LDA), Prediction Analysis for Microarrays (PAM), and Generalized Boosted Models (GBM)...
November 7, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29105051/tumour-bed-boost-radiotherapy-for-women-after-breast-conserving-surgery
#4
REVIEW
Isabelle Kindts, Annouschka Laenen, Tom Depuydt, Caroline Weltens
BACKGROUND: Breast-conserving therapy, involving breast-conserving surgery followed by whole-breast irradiation and optionally a boost to the tumour bed, is a standard therapeutic option for women with early-stage breast cancer. A boost to the tumour bed means that an extra dose of radiation is applied that covers the initial tumour site. The rationale for a boost of radiotherapy to the tumour bed is that (i) local recurrence occurs mostly at the site of the primary tumour because remaining microscopic tumour cells are most likely situated there; and (ii) radiation can eliminate these causative microscopic tumour cells...
November 6, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29102277/short-term-follow-up-mammography-in-breast-conservation-therapy-likely-leads-to-unnecessary-downstream-workup-a-longitudinal-study
#5
Shaakir Hasan, Stephen Abel, LaShondria Simpson-Camp, Meredith Witten, Luis Aguilera, Leslie Teng, Frances Hite Philp, Thomas B Julian, Mark Trombetta, Stephen Karlovits, Michael Cowher
PURPOSE: To analyze the effect of post-radiation therapy (XRT) mammographic timing and radiation technique in relation to additional downstream workup for 569 breast conservation therapy patients treated with adjuvant XRT after their initial surveillance mammogram (MMG). METHODS AND MATERIALS: From January 2011 to December 2014, 569 breast cancer patients treated with breast conservation surgery and adjuvant XRT with a follow-up MMG were reviewed. Patients were stratified by the time interval until their first post-XRT MMG, and by XRT technique-whole breast (472), accelerated partial breast (96), conventional fractionation (373), hypofractionation (94), surgical cavity boosts (407), or no boost (66)...
September 21, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29100935/immunomodulatory-effects-of-a-bioactive-fraction-of-strobilanthes-crispus-in-nmu-induced-rat-mammary-tumor-model
#6
Hassan Muhammad Yankuzo, Yusha'u Shu'aibu Baraya, Zulkarnain Mustapha, Kah Keng Wong, Nik Soriani Yaacob
ETHNOPHARMACOLOGICAL RELEVANCE: Strobilanthes crispus Blume is traditionally consumed among local Malay and indigenous communities for the treatment of cancer and other ailments such as gastrointestinal disorders, inflammatory wounds of snake bite and immune system activation amongst others. We previously demonstrated that a bioactive fraction of S. crispus leaves (F3) was cytotoxic to breast cancer cells in vitro and inhibited tumor growth in N-methyl-N-nitrosourea (NMU)-induced breast cancer rat model...
October 31, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29083930/convolutional-neural-network-for-histopathological-analysis-of-osteosarcoma
#7
Rashika Mishra, Ovidiu Daescu, Patrick Leavey, Dinesh Rakheja, Anita Sengupta
Pathologists often deal with high complexity and sometimes disagreement over osteosarcoma tumor classification due to cellular heterogeneity in the dataset. Segmentation and classification of histology tissue in H&E stained tumor image datasets is a challenging task because of intra-class variations, inter-class similarity, crowded context, and noisy data. In recent years, deep learning approaches have led to encouraging results in breast cancer and prostate cancer analysis. In this article, we propose convolutional neural network (CNN) as a tool to improve efficiency and accuracy of osteosarcoma tumor classification into tumor classes (viable tumor, necrosis) versus nontumor...
October 30, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/29063053/management-of-breast-cancer-brain-metastases-focus-on-human-epidermal-growth-factor-receptor-2-positive-breast-cancer
#8
REVIEW
Peng Yuan, Song-Lin Gao
After the introduction of trastuzumab, a monoclonal antibody that binds to human epidermal growth factor receptor 2 (HER2), the overall survival (OS) among patients with HER2-positive breast cancer has been substantially improved. However, among these patients, the incidence of brain metastases (BM) has been increasing and an increased proportion of them have died of intracranial progression, which makes HER2-positive breast cancer brain metastases (BCBM) a critical issue of concern. For local control of limited BM, stereotactic radiosurgery (SRS) and surgical resection are available modalities with different clinical indications...
March 25, 2017: Chronic Dis Transl Med
https://www.readbyqxmd.com/read/29055790/%C3%AE-actinin-4-confers-radioresistance-coupled-invasiveness-in-breast-cancer-cells-through-akt-pathway
#9
Sejal Desai, Amlan Barai, Amirali B Bukhari, Abhijit De, Shamik Sen
Acquired radioresistance accompanied with increased metastatic potential is a major hurdle in effective radiotherapy of breast cancers. However, the nature of their inter-dependence and the underlying mechanism remains largely intangible. By employing radioresistant (RR) cell lines, we herein demonstrate that MCF-7 RR cells display phenotypic and molecular alterations evocative of epithelial to mesenchymal transition (EMT) with increased traction forces and membrane ruffling culminating in boosted invasiveness...
October 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29032999/a-prospective-phase-i-comparison-of-toxicity-and-cosmesis-outcomes-of-single-fraction-iort-and-hypofractionated-radiotherapy-with-iort-boost-in-early-stage-breast-cancer
#10
Tanuja Bhandari, Wesley Babaran, Afshin Forouzannia, Venita Williams, Jay Harness, Michele Carpenter, Maher Gobran, Rajesh Khanijou, Brittany Wagman, Robert Ash, Lawrence D Wagman
PURPOSE: Radiation therapy is proven to reduce local recurrence in patients with early-stage breast cancer. To reduce toxicity, treatment time, and improve accuracy, intraoperative radiation therapy was used as definitive treatment or as a boost. The study's objective was to compare the short-term toxicity and cosmesis of single-fraction (SF) IORT and hypofractionated radiotherapy with IORT boost (HfB) given as definitive treatment. METHODS AND MATERIALS: Between March 2011 and December 2013, 57 patients aged 45-91 years and 24 patients aged 43-83 years (total n = 81) with Stage 0-II were treated with SF or HfB (Mobetron, IntraOp Medical, Sunnyvale, CA)...
October 9, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29020960/perspectives-in-immunotherapy-meeting-report-from-the-immunotherapy-bridge-napoli-november-30th-2016
#11
Paolo A Ascierto, Bruno Daniele, Hans Hammers, Vera Hirsh, Joseph Kim, Lisa Licitra, Rita Nanda, Sandro Pignata
The complex interactions between the immune system and tumors lead the identification of key molecules that govern these interactions: immunotherapeutics were designed to overcome the mechanisms broken by tumors to evade immune destruction. After the substantial advances in melanoma, immunotherapy currently includes many other type of cancers, but the melanoma lesson is essential to progress in other type of cancers, since immunotherapy is potentially improving clinical outcome in various solid and haematologic malignancies...
October 11, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28987136/radiation-therapy-and-early-breast-cancer-current-controversies
#12
REVIEW
John Boyages
Radiation therapy (RT) is an important component of breast cancer treatment. RT reduces local recurrence and breast cancer mortality after breast conservation for all patients and for node-positive patients after a mastectomy. Short courses of RT over 3-4 weeks are generally as effective as longer courses. A patient subgroup where RT can be avoided after conservative surgery has not been consistently identified. A radiation boost reduces the risk of a recurrence in the breast but may be omitted for older patients with good prognosis tumours with clear margins...
August 4, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28965307/the-kinesin-eg5-inhibitor-k858-induces-apoptosis-and-reverses-the-malignant-invasive-phenotype-in-human-glioblastoma-cells
#13
Ludovica Taglieri, Giovanna Rubinacci, Anna Giuffrida, Simone Carradori, Susanna Scarpa
Glioblastoma multiforme is the most common primary malignant brain tumor and its current chemotherapeutic options are limited to temozolomide. Recently, some synthetic compounds acting as inhibitors of kinesin spindle protein Eg5 have shown pronounced antitumor activity. Our group has recently demonstrated that one of these kinesin Eg5 inhibitors, named K858, exerted important antiproliferative and apoptotic effects on breast cancer cells. Since glioblastoma cells usually express high levels of kinesin Eg5, we tested the effect of K858 on two human glioblastoma cell lines (U-251 and U-87) and found that K858 inhibited cell growth, induced apoptosis, reversed epithelial-mesenchymal transition and inhibited migration in both cell lines...
September 30, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28958838/trastuzumab-and-hypofractionated-whole-breast-radiotherapy-a-victorious-combination
#14
Maria Carmen De Santis, Francesca Bonfantini, Francesca Di Salvo, Alba Fiorentino, Valentina Maria Riboldi, Serena Di Cosimo, Giulia Valeria Bianchi, Massimiliano Gennaro, Vito Cosentino, Milena Sant, Emanuele Pignoli, Riccardo Valdagni, Laura Lozza
INTRODUCTION: The purpose of this study was to examine the impact of trastuzumab on acute skin and cardiac toxicity in patients with breast cancer treated with chemotherapy with or without trastuzumab and adjuvant whole breast hypofractionated radiotherapy (hypo-RT). MATERIALS AND METHODS: The study was conducted on 727 patients treated from April 2009 to October 2016. Patients received 42.4 Gy in 16 daily fractions (2.65 Gy per fraction). A boost was only administered in cases with grade (G) 3 primary tumor and close or positive margins...
August 24, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28949782/divergent-anticancer-activity-of-free-and-formulated-camel-milk-%C3%AE-lactalbumin
#15
COMPARATIVE STUDY
Vladimir N Uversky, Esmail M El-Fakharany, Marwa M Abu-Serie, Hussein A Almehdar, Elrashdy M Redwan
Alpha-lactalbumin (α-LA), a small milk calcium-binding globular protein, is known to possess noticeable anticancer activity, which is determined by the ability of this protein to form complexes with oleic acid (OA). To date, in addition to human and bovine α-LA, the ability to form such anti-tumor complexes with OA was described for goat and camel α-LA. Although the mechanisms of the anticancer activity of human and bovine α-LA are already well-studied, little is currently known about the anticancer action of this camel protein...
October 21, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28945885/single-fraction-radiosurgery-using-conservative-doses-for-brain-metastases-durable-responses-in-select-primaries-with-limited-toxicity
#16
Michael Cummings, Paul Youn, Derek P Bergsma, Kenneth Y Usuki, Kevin Walter, Manju Sharma, Paul Okunieff, Michael C Schell, Michael T Milano
BACKGROUND: Optimal doses for single-fraction stereotactic radiosurgery (SRS) in the treatment of brain metastases are not well established. Our institution utilized conservative dosing compared to maximum-tolerated doses from the Radiation Therapy Oncology Group 90-05 Phase I study. OBJECTIVE: To report individual lesion control (LC) from conservative single-fraction doses and determine factors affecting LC. METHODS: From 2003 to 2015, patients who underwent linear accelerator-based single-fraction SRS for cerebral/cerebellar metastases and receiving at least 1 follow-up magnetic resonance imaging (MRI) were identified...
August 12, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28935620/a-lifestyle-intervention-via-email-in-minority-breast-cancer-survivors-randomized-parallel-group-feasibility-study
#17
Raheem J Paxton, Richard Hajek, Patricia Newcomb, Megha Dobhal, Sujana Borra, Wendell C Taylor, Deborah Parra-Medina, Shine Chang, Kerry S Courneya, Gladys Block, Torin Block, Lovell A Jones
BACKGROUND: Our data have indicated that minority breast cancer survivors are receptive to participating in lifestyle interventions delivered via email or the Web, yet few Web-based studies exist in this population. OBJECTIVE: The aim of this study was to examine the feasibility and preliminary results of an email-delivered diet and activity intervention program, "A Lifestyle Intervention Via Email (ALIVE)," delivered to a sample of racial and ethnic minority breast cancer survivors...
September 21, 2017: JMIR Cancer
https://www.readbyqxmd.com/read/28928852/dcis-margins-and-breast-conservation-md-anderson-cancer-center-multidisciplinary-practice-guidelines-and-outcomes
#18
REVIEW
Henry M Kuerer, Benjamin D Smith, Mariana Chavez-MacGregor, Constance Albarracin, Carlos H Barcenas, Lumarie Santiago, Mary E Edgerton, Gaiane M Rauch, Sharon H Giordano, Aysegul Sahin, Savitri Krishnamurthy, Wendy Woodward, Debasish Tripathy, Wei T Yang, Kelly K Hunt
Recent published guidelines suggest that adequate margins for DCIS should be ≥ 2 mm after breast conserving surgery followed by radiotherapy (RT). Many groups now use this guideline as an absolute indication for additional surgery. This article describes detailed multidisciplinary practices including extensive preoperative/intraoperative pathologic/histologic image-guided assessment of margins, offering some patients with small low/intermediate grade DCIS no RT, the use/magnitude of radiation boost tailoring to margin width, and endocrine therapy for ER-positive DCIS...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927756/recent-time-trends-and-predictors-of-heart-dose-from-breast-radiation-therapy-in-a-large-quality-consortium-of-radiation-oncology-practices
#19
Lori J Pierce, Mary Feng, Kent A Griffith, Reshma Jagsi, Thomas Boike, Daniel Dryden, Gregory S Gustafson, Lisa Benedetti, Martha M Matuszak, Teamour S Nurushev, Joe Haywood, Jeffrey D Radawski, Corey Speers, Eleanor M Walker, James A Hayman, Jean M Moran
PURPOSE: Limited data exist regarding the range of heart doses received in routine practice with radiation therapy (RT) for breast cancer in the United States today and the potential effect of the continual assessment of the cardiac dose on practice patterns. METHODS AND MATERIALS: From 2012 to 2015, 4688 patients with breast cancer treated with whole breast RT at 20 sites participating in a state-wide consortium were enrolled into a registry. The importance of limiting the cardiac dose has been emphasized in the consortium since 2012, and the mean heart dose (MHD) has been reported by each institution since 2014...
July 22, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28918848/a-multi-institutional-analysis-of-intraoperative-radiotherapy-for-early-breast-cancer-does-age-matter
#20
MULTICENTER STUDY
A M Abbott, S A Valente, L Loftus, R D Tendulkar, J M Greif, K P Bethke, E D Donnelly, C Lottich, D L Ross, N B Friedman, C G Bedi, J E Joh, P Kelemen, R A Hoefer, S K Kang, J Ruffer, A Police, A Fyles, G M Graves, S C Willey, E A Tousimis, W Small, J Lyons, S Grobmyer, C Laronga
BACKGROUND: Single-session intraoperative radiation therapy (IORT) minimizes treatment demands associated with traditional whole breast radiation therapy (WBRT) but outcomes on local disease control and morbidity among the elderly is limited. METHODS: A multi-institutional retrospective registry was established from 19 centers utilizing IORT from 2007 to 2013. Patient, tumor, and treatment variables were analyzed for ages <70 and ≥70. RESULTS: We evaluated 686 patients (<70 = 424; ≥70 = 262) who were margin and lymph node negative...
October 2017: American Journal of Surgery
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