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https://www.readbyqxmd.com/read/28104682/out-ranking-brca1-in-mutation-carriers
#1
REVIEW
Emma Nolan, Geoffrey J Lindeman, Jane E Visvader
Beyond prophylactic mastectomy, there are currently very few options available to BRCA1 mutation carriers to help reduce their risk of developing breast cancer. An effective prevention therapy therefore remains a pressing area of need. Accumulating evidence points to amplification of the progesterone signaling axis in precancerous tissue from BRCA1 mutation carriers. Given that RANKL is an important paracrine mediator of hormonal signaling in breast tissue, there has been considerable interest in exploring a potential role for this pathway in oncogenesis...
January 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/28103936/elevated-collagen-i-augments-tumor-progressive-signals-intravasation-and-metastasis-of-prolactin-induced-estrogen-receptor-alpha-positive-mammary-tumor-cells
#2
Craig E Barcus, Kathleen A O'Leary, Jennifer L Brockman, Debra E Rugowski, Yuming Liu, Nancy Garcia, Menggang Yu, Patricia J Keely, Kevin W Eliceiri, Linda A Schuler
BACKGROUND: The development and progression of estrogen receptor alpha positive (ERα+) breast cancer has been linked epidemiologically to prolactin. However, activation of the canonical mediator of prolactin, STAT5, is associated with more differentiated cancers and better prognoses. We have reported that density/stiffness of the extracellular matrix potently modulates the repertoire of prolactin signals in human ERα + breast cancer cells in vitro: stiff matrices shift the balance from the Janus kinase (JAK)2/STAT5 cascade toward pro-tumor progressive extracellular regulated kinase (ERK)1/2 signals, driving invasion...
January 19, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28099441/puma-and-nf-kb-are-cell-signaling-predictors-of-reovirus-oncolysis-of-breast-cancer
#3
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/28096110/bra-sizing-and-the-plastic-surgery-herd-effect-are-breast-augmentation-patients-getting-accurate-information
#4
Christopher R Costa, Kevin H Small, William P Adams
BACKGROUND: Bra sizing is a common method to preoperatively select implants for breast augmentation; however, no series has analyzed the accuracy of this modality postoperatively. Alternatively, previous investigations have validated the accuracy and utility of three-dimensional (3D) imaging for preoperative simulation in breast augmentation. OBJECTIVES: This investigation utilizes 3D analysis to determine if preoperative bra sizing provides equivocal information compared to surgical 3D simulation for patient education and planning prior to a breast augmentation...
January 17, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28094850/discriminating-solitary-cysts-from-soft-tissue-lesions-in-mammography-using-a-pretrained-deep-convolutional-neural-network
#5
Thijs Kooi, Bram van Ginneken, Nico Karssemeijer, Ard den Heeten
PURPOSE: It is estimated that 7% of women in the western world will develop palpable breast cysts in their lifetime. Even though cysts have been correlated with risk of developing breast cancer, many of them are benign and do not require follow-up. We develop a method to discriminate benign solitary cysts from malignant masses in digital mammography. We think a system like this can have merit in the clinic as a decision aid or complementary to specialised modalities. METHODS: We employ a deep Convolutional Neural Network (CNN) to classify cyst and mass patches...
January 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28080988/medical-mycology-and-fungal-immunology-new-research-perspectives-addressing-a-major-world-health-challenge
#6
REVIEW
Neil A R Gow, Mihai G Netea
Fungi cause more than a billion skin infections, more than 100 million mucosal infections, 10 million serious allergies and more than a million deaths each year. Global mortality owing to fungal infections is greater than for malaria and breast cancer and is equivalent to that owing to tuberculosis (TB) and HIV. These statistics evidence fungal infections as a major threat to human health and a major burden to healthcare budgets worldwide. Those patients who are at greatest risk of life-threatening fungal infections include those who have weakened immunity or have suffered trauma or other predisposing infections such as HIV...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28066801/cell-assisted-lipotransfer-in-breast-augmentation-and-reconstruction-a-systematic-review-of-safety-efficacy-use%C3%A2-of%C3%A2-patient-reported-outcomes-and-study-quality
#7
Zeeshaan Arshad, Lindsey Karmen, Rajan Choudhary, James A Smith, Olivier A Branford, David A Brindley, David Pettitt, Benjamin M Davies
BACKGROUND: Cell assisted lipotransfer serves as a novel technique for both breast reconstruction and breast augmentation. This systematic review assesses the efficacy, safety and use of patient reported outcome measures in studies involving cell assisted lipotransfer. We also carry out an objective assessment of study quality focussing on recruitment, follow-up and provide an up-to-date clinical trial landscaping analysis. METHODS: Key electronic databases were searched according to PRISMA guidelines and pre-defined inclusion and exclusion criteria...
December 2016: JPRAS Open
https://www.readbyqxmd.com/read/28062963/does-demand-for-breast-augmentation-reflect-national-financial-trends
#8
L Kearney, R T Dolan, A J Clover, E J Kelly, E O'Broin, M O'Shaughnessy, S T O'Sullivan
: Aesthetic plastic surgery is a consumer-driven industry, subject to influence by financial forces. A changing economic environment may thus impact on the demand for surgery. The aim of this study was to explore trends in demand for bilateral breast augmentation (BBA) in consecutively presenting patients over an 11-year period and to examine if a correlation exists between these trends and changes in Gross Domestic Product (GDP), a key economic indicator. This study revealed a correlation between annual number of breast augmentation procedures performed and GDP values (r (2) = 0...
January 7, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28061448/targeting-basal-like-breast-tumors-with-bromodomain-and-extraterminal-domain-bet-and-polo-like-kinase-inhibitors
#9
Cristina Nieto-Jiménez, Ana Alcaraz-Sanabria, Javier Pérez-Peña, Verónica Corrales-Sánchez, Gemma Serrano-Heras, Eva M Galán-Moya, Leticia Serrano-Oviedo, Juan Carlos Montero, Miguel Burgos, Juan Llopis, Atanasio Pandiella, Alberto Ocaña
Metastatic triple negative breast cancer (TNBC) is an incurable disease with limited therapeutic options, and no targeted therapies available. Triple negative tumors and the basal-like genomic subtype, are both characterized by a high proliferation rate and an increase in cell division. In this context, protein kinases involved in the mitotic formation have a relevant role in this tumor subtype. Recently, Bromodomain and extraterminal domain (BET) inhibitors have shown to be active in this disease by modulating the expression of several transcription factors...
January 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28054302/microrna-761-induces-aggressive-phenotypes-in-triple-negative-breast-cancer-cells-by-repressing-trim29-expression
#10
Guang-Cheng Guo, Jia-Xiang Wang, Ming-Li Han, Lian-Ping Zhang, Lin Li
PURPOSE: Despite advances that have been made in systemic chemotherapy, the prognosis of advanced triple-negative breast cancer (TNBC) patients is still poor. The identification of key factors governing TNBC development is considered imperative for the development of novel effective therapeutic approaches. Previously, it has been reported that microRNA (miR)-761 may act as either a tumor suppressor or as an oncogene in different types of cancer. Here, we aimed at assessing the biological role of this miRNA in TNBC...
January 4, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28052005/bortezomib-augments-lymphocyte-stimulatory-cytokine-signaling-in-the-tumor-microenvironment-to-sustain-cd8-t-cell-antitumor-function
#11
Samuel T Pellom, Duafalia F Dudimah, Menaka C Thounaojam, Roman V Uzhachenko, Ashutosh Singhal, Ann Richmond, Anil Shanker
Tumor-induced immune tolerance poses a major challenge for therapeutic interventions aimed to manage cancer. We explored approaches to overcome T-cell suppression in murine breast and kidney adenocarcinomas, and lung fibrosarcoma expressing immunogenic antigens. We observed that treatment with a reversible proteasome inhibitor bortezomib (1 mg/kg body weight) in tumor-bearing mice significantly enhanced the expression of lymphocyte-stimulatory cytokines IL-2, IL-12, and IL-15. Notably, bortezomib administration reduced pulmonary nodules of mammary adenocarcinoma 4T1...
December 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/28038446/heparanase-augments-insulin-receptor-signaling-in-breast-carcinoma
#12
Rachel Goldberg, Amir Sonnenblick, Esther Hermano, Tamar Hamburger, Amichay Meirovitz, Tamar Peretz, Michael Elkin
Recently, growing interest in the potential link between metabolic disorders (i.e., diabetes, obesity, metabolic syndrome) and breast cancer has mounted, including studies which indicate that diabetic/hyperinsulinemic women have a significantly higher risk of bearing breast tumors that are more aggressive and associated with higher death rates. Insulin signaling is regarded as a major contributor to this phenomenon; much less is known about the role of heparan sulfate-degrading enzyme heparanase in the link between metabolic disorders and cancer...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28027312/the-subclonal-architecture-of-metastatic-breast-cancer-results-from-a-prospective-community-based-rapid-autopsy-program-cascade
#13
Peter Savas, Zhi Ling Teo, Christophe Lefevre, Christoffer Flensburg, Franco Caramia, Kathryn Alsop, Mariam Mansour, Prudence A Francis, Heather A Thorne, Maria Joao Silva, Nnennaya Kanu, Michelle Dietzen, Andrew Rowan, Maik Kschischo, Stephen Fox, David D Bowtell, Sarah-Jane Dawson, Terence P Speed, Charles Swanton, Sherene Loi
BACKGROUND: Understanding the cancer genome is seen as a key step in improving outcomes for cancer patients. Genomic assays are emerging as a possible avenue to personalised medicine in breast cancer. However, evolution of the cancer genome during the natural history of breast cancer is largely unknown, as is the profile of disease at death. We sought to study in detail these aspects of advanced breast cancers that have resulted in lethal disease. METHODS AND FINDINGS: Three patients with oestrogen-receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer and one patient with triple negative breast cancer underwent rapid autopsy as part of an institutional prospective community-based rapid autopsy program (CASCADE)...
December 2016: PLoS Medicine
https://www.readbyqxmd.com/read/28012977/two-stage-implant-based-breast-reconstruction-compared-with-immediate-one-stage-implant-based-breast-reconstruction-augmented-with-an-acellular-dermal-matrix-an-open-label-phase-4-multicentre-randomised-controlled-trial
#14
Rieky E G Dikmans, Vera L Negenborn, Mark-Bram Bouman, Hay A H Winters, Jos W R Twisk, P Quinten Ruhé, Marc A M Mureau, Jan Maerten Smit, Stefania Tuinder, Yassir Eltahir, Nicole A Posch, Josephina M van Steveninck-Barends, Marleen A Meesters-Caberg, René R W J van der Hulst, Marco J P F Ritt, Margriet G Mullender
BACKGROUND: The evidence justifying the use of acellular dermal matrices (ADMs) in implant-based breast reconstruction (IBBR) is limited. We did a prospective randomised trial to compare the safety of IBBR with an ADM immediately after mastectomy with that of two-stage IBBR. METHODS: We did an open-label, randomised, controlled trial in eight hospitals in the Netherlands. Eligible women were older than 18 years with breast carcinoma or a gene mutation linked with breast cancer who intended to undergo skin-sparing mastectomy and immediate IBBR...
December 21, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/28010934/facilitating-shared-decision-making-with-breast-augmentation-patients-acceptability-of-the-pegasus-intervention
#15
Nicole Paraskeva, Alex Clarke, Rajiv Grover, Stephen Hamilton, Simon Withey, Diana Harcourt
BACKGROUND: PEGASUS is an intervention to facilitate shared decision-making by helping prospective patients consider their expectations of surgery, so that surgeons have a clear understanding of their individual goals. To date, shared decision-making interventions within aesthetic surgery are lacking. The present mixed methods study therefore explored the acceptability of implementing PEGASUS into routine private practice with breast augmentation patients and aesthetic providers. METHOD: Seventeen women presenting for breast augmentation surgery from three practices received the PEGASUS intervention pre-operatively and completed a process evaluation post-operatively...
November 24, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28004414/an-expectation-maximization-algorithm-for-fitting-the-generalized-odds-rate-model-to-interval-censored-data
#16
Jie Zhou, Jiajia Zhang, Wenbin Lu
The generalized odds-rate model is a class of semiparametric regression models, which includes the proportional hazards and proportional odds models as special cases. There are few works on estimation of the generalized odds-rate model with interval censored data because of the challenges in maximizing the complex likelihood function. In this paper, we propose a gamma-Poisson data augmentation approach to develop an Expectation Maximization algorithm, which can be used to fit the generalized odds-rate model to interval censored data...
December 21, 2016: Statistics in Medicine
https://www.readbyqxmd.com/read/28001351/proteoform-specific-protein-binding-of-small-molecules-in-complex-matrices
#17
Geuncheol Gil, Pan Mao, Bharathi Avula, Zulfiqar Ali, Amar G Chittiboyina, Ikhlas A Khan, Larry A Walker, Daojing Wang
Characterizing the specific binding between protein targets and small molecules is critically important for drug discovery. Conventional assays require isolation and purification of small molecules from complex matrices through multistep chromatographic fractionation, which may alter their original bioactivity. Most proteins undergo posttranslational modification, and only certain proteoforms have the right conformation with accessible domains and available residues for small molecule binding. We developed a top-down mass spectrometry (MS) centric workflow for rapid evaluation of the bioactivity of crude botanical extracts after a one-step reaction...
December 21, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/27994672/an-in-vitro-inverted-vertical-invasion-assay-to-avoid-manipulation-of-rare-or-sensitive-cell-types
#18
Tanner J McArdle, Brenda M Ogle, Felicite K Noubissi
The ability to quantify cell migration and invasion is critical in the study of cancer metastasis. Current invasion assays, such as the Boyden Chamber, present difficulties in the measurement of the invasion of cells that are few in number and are intrinsically tied to the cell microenvironment. There exists a need for a three-dimensional invasion assay that is easily reproduced, accessible for most laboratories, and requires no displacement of cells from their original microenvironment. Here we present a simple design for an inverted vertical invasion assay able to assess the invasion capabilities of cells in a three dimensional, extracellular matrix-based environment without displacement from the original culture location...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27993599/cd73-specific-sirna-loaded-chitosan-lactate-nanoparticles-potentiate-the-antitumor-effect-of-a-dendritic-cell-vaccine-in-4t1-breast-cancer-bearing-mice
#19
Farhad Jadidi-Niaragh, Fatemeh Atyabi, Ali Rastegari, Nasim Kheshtchin, Samaneh Arab, Hadi Hassannia, Maryam Ajami, Zahra Mirsanei, Sima Habibi, Farimah Masoumi, Farshid Noorbakhsh, Fazel Shokri, Jamshid Hadjati
The efficacy of conventional anti-tumor immunotherapeutic approaches is markedly affected by the immunosuppressive microenvironment of tumor. Since adenosine is one of the main orchestra leaders in immunosuppression symphony of tumor, targeting its producing molecules such as CD73 can help to achieve a better clinical outcome following conventional cancer immunotherapeutic approaches. In the present study, we evaluated the efficacy of CD73-specific siRNA-loaded chitosan-lactate nanoparticles (ChLa NPs) in combination with tumor lysate pulsed dendritic cells (DCs) vaccine in treatment of 4T1 (murine derived) breast cancer bearing mice...
December 18, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27982029/galnt14-promotes-lung-specific-breast-cancer-metastasis-by-modulating-self-renewal-and-interaction-with-the-lung-microenvironment
#20
Ki-Hoon Song, Mi So Park, Tulip S Nandu, Shrikanth Gadad, Sang-Cheol Kim, Mi-Young Kim
Some polypeptide N-acetyl-galactosaminyltransferases (GALNTs) are associated with cancer, but their function in organ-specific metastasis remains unclear. Here, we report that GALNT14 promotes breast cancer metastasis to the lung by enhancing the initiation of metastatic colonies as well as their subsequent growth into overt metastases. Our results suggest that GALNT14 augments the self-renewal properties of breast cancer cells (BCCs). Furthermore, GALNT14 overcomes the inhibitory effect of lung-derived bone morphogenetic proteins (BMPs) on self-renewal and therefore facilitates metastasis initiation within the lung microenvironment...
December 16, 2016: Nature Communications
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