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https://www.readbyqxmd.com/read/28102883/exploring-prognostic-factors-for-her2-positive-metastatic-breast-cancer-a-retrospective-cohort-study-in-a-major-swiss-hospital
#1
Lilian Bringolf, Bernhard Pestalozzi, Daniel Fink, Konstantin Dedes
BACKGROUND: Trastuzumab (Herceptin®, Roche) has significantly improved the prognosis of patients with HER2-positive metastatic breast cancer. Some patients remain in remission for many years. However, there are no prognostic markers associated with long-term survival. This study aimed to analyse treatment patterns of HER2-positive metastatic breast cancer at a single institution and explore prognostic factors for long-term survival after HER2-targeted treatment. PATIENTS AND METHODS: This was a retrospective cohort study of all patients with HER2-positive metastatic breast cancer receiving first-line treatment with HER2-targeted therapy between 2004 and 2014 at the University Hospital of Zurich (n = 81)...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102529/recovery-from-chemotherapy-induced-white-matter-changes-in-young-breast-cancer-survivors
#2
Thibo Billiet, Louise Emsell, Mathieu Vandenbulcke, Ronald Peeters, Daan Christiaens, Alexander Leemans, Wim Van Hecke, Ann Smeets, Frederic Amant, Stefan Sunaert, Sabine Deprez
In a previous longitudinal diffusion tensor imaging (DTI) study, we observed cerebral white matter (WM) alterations (reduced fractional anisotropy (FA)) related to decreased cognitive performance 3-5 months after chemotherapy-treatment (t2) when compared to baseline (t1) (Deprez et al. in Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology, 30(3), 274-281. doi:10.1200/JCO.2011.36.8571, 2012). The current study investigates the evolution and the nature of these previously observed microstructural changes...
January 19, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28102286/chelerythrine-down-regulates-expression-of-vegfa-bcl2-and-kras-by-arresting-g-quadruplex-structures-at-their-promoter-regions
#3
Jagannath Jana, Soma Mondal, Payel Bhattacharjee, Pallabi Sengupta, Tanaya Roychowdhury, Pranay Saha, Pallob Kundu, Subhrangsu Chatterjee
A putative anticancer plant alkaloid, Chelerythrine binds to G-quadruplexes at promoters of VEGFA, BCL2 and KRAS genes and down regulates their expression. The association of Chelerythrine to G-quadruplex at the promoters of these oncogenes were monitored using UV absorption spectroscopy, fluorescence anisotropy, circular dichroism spectroscopy, CD melting, isothermal titration calorimetry, molecular dynamics simulation and quantitative RT-PCR technique. The pronounced hypochromism accompanied by red shifts in UV absorption spectroscopy in conjunction with ethidium bromide displacement assay indicates end stacking mode of interaction of Chelerythrine with the corresponding G-quadruplex structures...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101941/key-messages-for-communicating-information-about-brca1-and-brca2-to-women-with-breast-or-ovarian-cancer-consensus-across-health-professionals-and-service-users
#4
Chris Jacobs, Gabriella Pichert, Jackie Harris, Kathy Tucker, Susan Michie
OBJECTIVES: Genetic testing of cancer predisposing genes will increasingly be needed in oncology clinics in order to target cancer treatment. This Delphi study aimed to identify areas of agreement and disagreement between genetics and oncology health professionals and service users about the key messages required by women with breast/ovarian cancer who undergo BRCA1/BRCA2 genetic testing and the optimal timing of communicating key messages. METHODS: Participants were 16 expert health professionals specialising in oncology/genetics and 16 service users with breast/ovarian cancer and a pathogenic BRCA1/BRCA2 variant...
January 18, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28101782/the-antineoplastic-drug-trastuzumab-dysregulates-metabolism-in-ipsc-derived-cardiomyocytes
#5
Brian M Necela, Bianca C Axenfeld, Daniel J Serie, Jennifer M Kachergus, Edith A Perez, E Aubrey Thompson, Nadine Norton
BACKGROUND: The targeted ERBB2 therapy, trastuzumab, has had a tremendous impact on management of patients with HER2+ breast cancer, leading to development and increased use of further HER2 targeted therapies. The major clinical side effect is cardiotoxicity but the mechanism is largely unknown. On the basis that gene expression is known to be altered in multiple models of heart failure, we examined differential gene expression of iPSC-derived cardiomyocytes treated at day 11 with the ERBB2 targeted monoclonal antibody, trastuzumab for 48 h and the small molecule tyrosine kinase inhibitor of EGFR and ERBB2...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28101678/breast-carcinoma-subtypes-show-different-patterns-of-metastatic-behavior
#6
István Artúr Molnár, Béla Ákos Molnár, Laura Vízkeleti, Krisztina Fekete, Judit Tamás, Péter Deák, Csilla Szundi, Borbála Székely, Judit Moldvay, Stefan Vári-Kakas, Marcell A Szász, Balázs Ács, Janina Kulka, Anna-Mária Tőkés
The aim of our retrospective study was to analyze patterns of subtype specific metastatic spread and to identify the time course of distant metastases. A consecutive series of 490 patients with breast cancer who underwent surgery and postoperative treatment at Semmelweis University, Hungary, and diagnosed between the years 2000 and 2007 was identified from the archives of the 2nd Department of Pathology, Hungary. Molecular subtypes were defined based on the 2011 St. Gallen recommendations. Statistical analysis was performed with SPSS Statistics for Windows, Version 22...
January 19, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28101676/patterns-of-statin-initiation-and-continuation-in-patients-with-breast-or-colorectal-cancer-towards-end-of-life
#7
Amelia Smith, Laura Murphy, Kathleen Bennett, Thomas I Barron
PURPOSE: Cross-sectional studies show that statins, used in cardiovascular disease prevention, are often discontinued approaching death. Studies investigating associations between statin exposure and cancer outcomes, not accounting for these exposure changes, are prone to reverse causation bias. The aim of this study was to describe longitudinally the changes in statin initiation and continuation prior to death in patients with breast or colorectal cancer, thus establishing an appropriate exposure lag time...
January 18, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28101573/combining-doxorubicin-with-a-phenolic-extract-from-flaxseed-oil-evaluation-of-the-effect-on-two-breast-cancer-cell-lines
#8
Eliana Guerriero, Angela Sorice, Francesca Capone, Gabriella Storti, Giovanni Colonna, Gennaro Ciliberto, Susan Costantini
Breast cancer is one of the most frequently diagnosed forms of cancer and different treatments are used to block its progression. However, it still represents a very common cause of death in women. Doxorubicin (Dox) is reported as an effective agent in breast cancer treatment nonetheless it induces many side‑effects. For this reason, many laboratories are engaged in understanding how it is possible to decrease the drug concentration, considering that one of the possible solutions is to use drug synergy, combining it with natural substances...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101351/pro-inflammatory-effect-of-a-traditional-chinese-medicine-formula-with-potent-anti-cancer-activity-in-vitro-impedes-tumor-inhibitory-potential-in-vivo
#9
Lei Xia, Maksym Plachynta, Tangjingjun Liu, Xiao Xiao, Jialei Song, Xiaogang Li, Mu Zhang, Yao Yao, Heng Luo, Xiaojiang Hao, Yaacov Ben-David
Medicinal formulas are a part of the complex discipline of traditional Chinese medicine that has been used for centuries in China and East Asia. These formulas predominantly consist of the extracts isolated from herbal plants, animal parts and medicinal minerals. The present study aimed to investigate the impact of 150 formulas, used as non-prescription drugs in China, on the treatment of cancer. A formula was identified, C54, commonly used to treat sore throats, which exhibited marked growth inhibition in vitro, associated with cell cycle arrest and apoptosis...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28101229/retrospective-analysis-of-breast-cancer-prognosis-among-young-and-older-women-in-a-brazilian-cohort-of-738-patients-1985-2002
#10
Fabiana De Lima Vazquez, Thiago Buosi Silva, René Aloísio Da Costa Vieira, Allini Mafra Da Costa, Cristovam Scapulatempo, José Humberto Tavares Guerreiro Fregnani, Edmundo Carvalho Mauad, Adhemar Longatto, Kari Juhani Syrjänen
Invasive breast cancer (BC) is infrequent among women aged ≤40 years, however, the disease outlook in these younger patients is generally worse than among older women. The present study aimed to compare socio-demographic, clinical and pathological characteristics, and their association with long-term survival, between two random cohorts of young (≤40 years) and older (50-69 years) Brazilian patients with BC. The cohort comprised of 738 randomly selected women who were diagnosed with BC at Barretos Cancer Hospital, Pio XII Foundation (Barretos, Brazil) between January 1985 and December 2002; the patients included young women (n=376) and older women (n=362)...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101030/mucoepidermoid-carcinoma-of-the-breast-found-during-treatment-of-lymphoma
#11
Minoru Fujino, Daisuke Mori, Michiaki Akashi, Hidetaka Yamamoto, Hitoshi Aibe, Kunishige Matake, Kengo Shirahane
A 71-year-old woman, previously treated for malignant lymphoma, was admitted to our hospital with a tumor in the right breast. The tumor size was 2.0 cm in diameter, and the borderline was unclear. The core needle biopsy material revealed an invasive adenocarcinoma with metaplastic change. Right mastectomy and sentinel lymph node biopsy was performed. Histologically, the tumor was composed of mucus-secreting, epidermoid, and intermediate cells. These findings confirmed the diagnosis as mucoepidermoid carcinoma (MEC) of the breast...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/28100469/immunohistochemical-phenotype-of-breast-cancer-during-25-year-follow-up-of-the-royal-marsden-tamoxifen-prevention-trial
#12
Simone Detre, Susan Ashley, Kabir Mohammed, Ian E Smith, Trevor Powles, Mitch Dowsett
Background The randomized double-blinded Royal Marsden Tamoxifen Breast Cancer Prevention Trial in healthy high-risk women started in 1986 and is still blinded. 2471 eligible participants were randomly assigned to tamoxifen (20mg/day) or placebo for 8 years. Analysis in 2006 showed a 30% risk reduction of ER-positive invasive breast cancer mostly in the post treatment period. Biomarker analysis in this population may identify any sub-group specific preventive effects tamoxifen. Methods After a median follow-up of 18...
January 18, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28100392/replication-study-the-cd47-signal-regulatory-protein-alpha-sirpa-interaction-is-a-therapeutic-target-for-human-solid-tumors
#13
Stephen K Horrigan
In 2015, as part of the Reproducibility Project: Cancer Biology, we published a Registered Report (Chroscinski et al., 2015) that described how we intended to replicate selected experiments from the paper "The CD47-signal regulatory protein alpha (SIRPa) interaction is a therapeutic target for human solid tumors "(Willingham et al., 2012). Here we report the results of those experiments. We found that treatment of immune competent mice bearing orthotopic breast tumors with anti-mouse CD47 antibodies resulted in short-term anemia compared to controls, consistent with the previously described function of CD47 in normal phagocytosis of aging red blood cells and results reported in the original study (Table S4; Willingham et al...
January 19, 2017: ELife
https://www.readbyqxmd.com/read/28099969/digital-ischemia-as-a-paraneoplastic-phenomenon
#14
Tatiana Rodrigues, Anabela Barcelos
Digital ischemia is a rare paraneoplastic phenomenon associated with several malignant tumours, particularly adenocarcinomas. The underlying pathogenic mechanisms remain unknown and it can be the first manifestation, occur after the diagnosis or during treatment. We report a case of a 50 year old woman presenting with digital ischemia, whose diagnostic workup led to an invasive breast cancer, with significant improvement of digital ischemia after a successful treatment of the neoplasm.
October 2016: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28099441/puma-and-nf-kb-are-cell-signaling-predictors-of-reovirus-oncolysis-of-breast-cancer
#15
Chandini Thirukkumaran, Zhong-Qiao Shi, Ponnampalam Thirukkumaran, Joanne Luider, Karen Kopciuk, Jason Spurrell, Kate Elzinga, Don Morris
BACKGROUND AND PURPOSE: Reovirus is a ubiquitous RNA virus that exploits aberrant signaling pathways for its replication. The oncolytic potential of reovirus against numerous cancers under pre-clinical/clinical conditions has been documented by us and others. Despite its proven clinical activity, the underlying mechanisms of reovirus oncolysis is still not well elucidated. If reovirus therapy is to be optimized for cancer, including breast cancer patients, it is imperative to understand the mechanisms of reovirus oncolysis, especially in treatment of resistant tumour...
2017: PloS One
https://www.readbyqxmd.com/read/28099173/surgical-approach-for-ulcerated-locally-advanced-breast-cancer-a-single-center-experience-a-retrospective-study
#16
Rita Laforgia, Clelia Punzo, Annunziata Panebianco, Annalisa Volpi, Marina Minafra, Maria Grazia Sederino
AIM: The aim of our retrospective study is to analyze surgical possibilities for the extended LABC in those cases not suitable for a neoadjuvant chemotherapy step and to consider various reconstruction techniques. MATERIAL OF STUDY: Between 2009 and 2015 we enrolled 11 patients, admitted to the Emergency Department, presenting ulcerated LABC that needed palliative surgical demolitive procedures because of bleeding and anemia and in which was necessary to use natural tissues transposition or synthetic substitutes for the reconstruction of the skin flaps...
January 12, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28099150/elimination-of-quiescent-slow-cycling-cells-via-reducing-quiescence-depth-by-natural-compounds-purified-from-ganoderma-lucidum
#17
Jian Dai, Matthew A Miller, Nicholas J Everetts, Xia Wang, Peng Li, Ye Li, Jian-Hua Xu, Guang Yao
The medical mushroom Ganoderma lucidum has long been used in traditional Chinese medicine and shown effective in the treatment of many diseases including cancer. Here we studied the cytotoxic effects of two natural compounds purified from Ganoderma lucidum, ergosterol peroxide and ganodermanondiol. We found that these two compounds exhibited cytotoxicity not only against fast proliferating cells, but on quiescent, slow-cycling cells. Using a fibroblast cell-quiescence model, we found that the cytotoxicity on quiescent cells was due to induced apoptosis, and was associated with a shallower quiescent state in compound-treated cells, resultant from the increased basal activity of an Rb-E2F bistable switch that controls quiescence exit...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099147/ctla-4-positive-breast-cancer-cells-suppress-dendritic-cells-maturation-and-function
#18
Xi Chen, Qianqian Shao, Shengnan Hao, Zhonghua Zhao, Yang Wang, Xiaofan Guo, Ying He, Wenjuan Gao, Haiting Mao
Cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), a potent immunoregulatory molecule, can down-regulate T-cell activation and inhibit anti-tumor immune response. This study showed that LPS-stimulated human dendritic cells (DCs) decreased the expression of HLA-DR, CD83 and costimulatory molecules (CD40, CD80 and CD86) following coculturing with CTLA-4+ breast cancer cells. Moreover, the suppressed DCs further inhibited proliferation of allogeneic CD4+/CD8+ T-cells, differentiation of Th1 and function of cytotoxic lymphocytes (CTLs)...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099081/controversies-in-the-treatment-of-ductal-carcinoma-in-situ
#19
Andrea V Barrio, Kimberly J Van Zee
Ductal carcinoma in situ (DCIS) accounts for 20% of all newly diagnosed breast cancers. Mastectomy was once the gold standard for the treatment of DCIS; however, breast-conserving surgery (BCS) has been adopted as the treatment of choice for patients with small, screen-detected lesions. Both adjuvant radiation and hormonal therapy following BCS have been demonstrated in randomized trials to reduce the risk of both invasive and DCIS recurrence, but neither affects survival. With the variety of surgical and adjuvant treatment options available, there has been great interest in tailoring the treatment to the individual, with the goal of optimizing the balance of risks and benefits according to the values and priorities of the woman herself...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28099074/new-developments-in-breast-cancer-screening-and-treatment
#20
Sarah Tilstra, Melissa McNeil
The clinical update serves as a brief review of recently published, high-impact, and potentially practice-changing journal articles summarized for our readers. In this clinical update, we selected top recent articles regarding breast health that may change the clinical practice of women's health providers. We identified articles by reviewing high-impact medical and women's health journals as well as national practice guidelines. Three of our articles are dedicated to the rapid changes in breast cancer screening...
January 2017: Journal of Women's Health
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