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https://www.readbyqxmd.com/read/29342302/determination-of-the-appropriate-physical-density-of-internal-metallic-ports-in-temporary-tissue-expanders-for-the-treatment-planning-of-post-mastectomy-radiation-therapy
#1
Norifumi Mizuno, Haruna Takahashi, Jiro Kawamori, Naoki Nakamura, Mami Ogita, Shogo Hatanaka, Ryouhei Yamauchi, Masatsugu Hariu, Kenji Sekiguchi
Some patients undergoing breast reconstruction require post-mastectomy radiation therapy, but the metallic ports used in temporary tissue expanders attenuate the X-rays. In this study, we evaluated by the film method, the attenuation of 4 MV and 6 MV X-rays after passing through a metallic port, with the aim of identifying a useful method for determining the appropriate density to use in the radiation treatment planning system (RTPS), taking into account the distance between the metallic port and the targets...
January 12, 2018: Journal of Radiation Research
https://www.readbyqxmd.com/read/29341428/epigenetic-silencing-of-tap1-in-aldefluor-breast-cancer-stem-cells-contributes-to-their-enhanced-immune-evasion
#2
Mohammad Sultan, Dejan Vidovic, Arianne S Paine, Thomas T Huynh, Krysta M Coyle, Margaret L Thomas, Brianne M Cruickshank, Cheryl A Dean, Derek R Clements, Youra Kim, Kristin Lee, Shashi A Gujar, Ian C Weaver, Paola Marcato
Avoiding detection and destruction by immune cells is key for tumor initiation and progression. The important role of cancer stem cells (CSC) in tumor initiation has been well established, yet their ability to evade immune detection and targeting is only partly understood. To investigate the ability of breast CSCs to evade immune detection we identified a highly tumorigenic population in a spontaneous murine mammary tumor based on increased aldehyde dehydrogenase (ALDH) activity. We performed tumor growth studies in immunocompetent and immunocompromised mice...
January 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29341112/conditionally-reprogrammed-cells-crc-methodology-does-not-allow-the-in-vitro-expansion-of-patient-derived-primary-and-metastatic-lung-cancer-cells
#3
Giovanni Sette, Valentina Salvati, Ilenia Giordani, Emanuela Pillozzi, Denise Quacquarini, Enrico Duranti, Francesca De Nicola, Matteo Pallocca, Maurizio Fanciulli, Mario Falchi, Roberto Pallini, Ruggero De Maria, Adriana Eramo
Availability of tumor and non-tumor patient-derived models would promote the development of more effective therapeutics for Non Small Cell Lung Cancer (NSCLC). Recently, conditionally reprogrammed cells (CRC) methodology demonstrated exceptional potential for the expansion of epithelial cells from patient tissues. However, the possibility to expand patient-derived lung cancer cells using CRC protocols is controversial. Here, we used CRC approach to expand cells from non-tumoral and tumor biopsies of patients with primary or metastatic NSCLC as well as pulmonary metastases of colorectal or breast cancers...
January 17, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29340409/dynamics-of-3d-carcinoma-cell-invasion-into-aligned-collagen
#4
Arja Ray, Rachel K Morford, Nima Ghaderi, David J Odde, Paolo P Provenzano
Carcinoma cells frequently expand and invade from a confined lesion, or multicellular clusters, into and through the stroma on the path to metastasis, often with an efficiency dictated by the architecture and composition of the microenvironment. Specifically, in desmoplastic carcinomas such as those of the breast, aligned collagen tracks provide contact guidance cues for directed cancer cell invasion. Yet, the evolving dynamics of this process of invasion remains poorly understood, in part due to difficulties in continuously capturing both spatial and temporal heterogeneity and progression to invasion in experimental systems...
January 17, 2018: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/29340112/incidence-and-relative-risk-of-peripheral-neuropathy-in-cancer-patients-treated-with-eribulin-a-meta-analysis
#5
Ling Peng, Yun Hong, Xianghua Ye, Peng Shi, Junyan Zhang, Yina Wang, Qiong Zhao
Background: Eribulin is a microtubule inhibitor, which is approved for the treatment of breast cancer. Peripheral neuropathy has been reported in the studies of eribulin, but the incidence and relative risk (RR) of eribulin-associated peripheral neuropathy varied greatly in cancer patients. The purpose of this meta-analysis was to determine the overall incidence and RR of eribulin-associated peripheral neuropathy in cancer patients. Materials and Methods: Pubmed database and Embase and abstracts presented at the American Society of Clinical Oncology (ASCO) meetings were systematically reviewed for primary studies...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29335394/landscape-of-oncoplastic-breast-surgery-across-poland
#6
Agnieszka Kolacinska, Diana Hodorowicz-Zaniewska, Artur Bocian, Dariusz Michalik, Rafal Matkowski, Andrzej Kurylcio, Pawel Pyka, Michal Charytonowicz, Maciej Berkan
Oncoplastic and reconstructive techniques are essential tools in the armamentarium of contemporary breast surgeons. The aim of the study was to identify oncoplastic reconstructive patterns in breast cancer centers across Poland. A questionnaire of 18 questions was sent by email to the members of the Polish Society of Surgical Oncology and the Polish Society of Plastic, Reconstructive and Esthetic Surgery via their dedicated websites. The numbers of breast cancer patients operated on in each center ranged from 120 to 904 per year...
December 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/29334788/latissimus-dorsi-flap-in-breast-reconstruction-recent-innovations-in-the-workhorse-flap
#7
Rachita Sood, Jeena M Easow, Geoffrey Konopka, Zubin J Panthaki
BACKGROUND: Surgeons employ the latissimus dorsi flap (LDF) for reconstruction of a large variety of breast cancer surgery defects, including quadrantectomy, lumpectomy, modified radical mastectomy, and others. The LDF may be used in delayed or immediate reconstruction, in combination with tissue expanders for a staged reconstruction, with implant-based immediate reconstruction, or alone as an autogenous flap. METHODS: The authors discuss the historical uses and more recent developments in the LDF...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29330447/human-placental-derived-adherent-stromal-cells-co-induced-with-tnf-%C3%AE-and-ifn-%C3%AE-inhibit-triple-negative-breast-cancer-in-nude-mouse-xenograft-models
#8
Hoshea Allen, Niva Shraga-Heled, Michal Blumenfeld, Tamar Dego-Ashto, Dana Fuchs-Telem, Ariel Gilert, Zami Aberman, Racheli Ofir
Culturing 3D-expanded human placental-derived adherent stromal cells (ASCs) in the presence of tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) transiently upregulated the secretion of numerous anti-proliferative, anti-angiogenic and pro-inflammatory cytokines. In a 3D-spheroid screening assay, conditioned medium from these induced-ASCs inhibited proliferation of cancer cell lines, including triple-negative breast cancer (TNBC) lines. In vitro co-culture studies of induced-ASCs with MDA-MB-231 human breast carcinoma cells, a model representing TNBC, supports a mechanism involving immunomodulation and angiogenesis inhibition...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29325422/outcomes-in-deep-inferior-epigastric-perforator-flap-and-implant-based-reconstruction-does-age-really-matter
#9
Lauren V Kuykendall, Angie Zhang, Bugra Tugertimur, Sara Bijan, Corin Agoris, Ambuj Kumar, Deniz Dayicioglu
Despite the growing elderly population, there is limited research specific to this demographic concerning breast reconstruction (BR). Lack of evidence-based BR recommendations in older populations may contribute to misconceptions and subsequent underutilization of BR, especially autologous BR. Patients who received either deep inferior epigastric perforator (DIEP) flap BR or tissue expander/implant (TE/I) BR by a single surgeon between July 2011 and July 2015 were surveyed postoperatively by using the psychometrically validated BREAST-Q questionnaire to determine patient satisfaction...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29320921/benefits-and-risks-with-acellular-dermal-matrix-adm-and-mesh-support-in-immediate-breast-reconstruction-a-systematic-review-and-meta-analysis
#10
Håkan Hallberg, Svanheidur Rafnsdottir, Gennaro Selvaggi, Annika Strandell, Ola Samuelsson, Ida Stadig, Therese Svanberg, Emma Hansson, Richard Lewin
In modern implant-based immediate breast reconstruction, it has become common to use biological acellular dermal and synthetic matrices in combination with a tissue expander or an implant. The aim of this systematic review was to examine differences in recurrence of cancer, impact on oncological treatment, health related quality of life, complications and aesthetic outcome between matrix and no matrix in immediate breast reconstruction. Systematic searches, data extraction and assessment of methodological quality were performed according to predetermined criteria...
January 10, 2018: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/29317037/the-role-of-ultrasound-in-breast-cancer-screening-the-case-for-and-against-ultrasound
#11
Jaime Geisel, Madhavi Raghu, Regina Hooley
Mammography is the gold standard for breast cancer screening. However, with increasing awareness among patients and health care providers of mammography limitations especially in dense breasts, supplemental screening for breast cancer with ultrasound and magnetic resonance imaging has been expanding. The roles of both in screening need to be re-examined. This article reviews the efficacy, utility, and feasibility of ultrasound as a screening tool for the early detection of occult breast cancer.
February 2018: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/29316048/does-response-to-neo-adjuvant-chemotherapy-impact-breast-reconstruction
#12
Michael R Cassidy, Emily C Zabor, Michelle Stempel, Babak Mehrara, Mary L Gemignani
Neo-adjuvant chemotherapy (NAC) is administered in breast cancer treatment for downstaging of disease. Here, we determined the impact of response to NAC on breast reconstruction uptake. A prospective NAC and mastectomy database with or without reconstruction were reviewed with IRB approval. Univariable analyses were conducted using Kruskal-Wallis or Fisher's exact tests. Multivariable logistic regression was used to adjust for potential confounders. We identified 271 patients with unilateral breast cancer receiving NAC and either unilateral or bilateral mastectomy from 9/2013 to 5/2016...
January 8, 2018: Breast Journal
https://www.readbyqxmd.com/read/29311117/expanded-genomic-profiling-of-circulating-tumor-cells-in-metastatic-breast-cancer-patients-to-assess-biomarker-status-and-biology-over-time
#13
Mark Jesus M Magbanua, Hope S Rugo, Denise M Wolfe, Louai Hauranieh, Ritu Roy, Praveen Pendyala, Eduardo Sosa, Janet H Scott, Jin Sun Lee, Brandelyn N Pitcher, Terry M Hyslop, William T Barry, Steven J Isakoff, Maura N Dickler, Laura J Van't Veer, John W Park
Purpose: We profiled circulating tumor cells (CTCs) patients to study the biology of blood-borne metastasis and to monitor biomarker status in metastatic breast cancer (MBC).Methods: CTCs were isolated from 105 MBC patients using EPCAM-based immunomagnetic enrichment and fluorescence-activated cells sorting (IE/FACs), 28 of whom had serial CTC analysis (74 samples, 2-5 time points). CTCs were subjected to microfluidic-based multiplex QPCR array of 64 cancer-related genes (n=151) and genome-wide copy number analysis by array comparative genomic hybridization (n=49)...
January 8, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29310284/a-simultaneously-quantitative-method-to-profiling-twenty-endogenous-nucleosides-and-nucleotides-in-cancer-cells-using-uhplc-ms-ms
#14
Bangjie Zhu, Hai Wei, Qingjiang Wang, Fugang Li, Jieyu Dai, Chao Yan, Yu Cheng
Endogenous nucleosides and nucleotides in biosamples are frequently highlighted as the most differential metabolites in recent metabolomics studies. We developed a rapid, sensitive, high-throughput and reliable quantitative method to simultaneously profile 20 endogenous nucleosides and nucleotides in cancer cell lines based on ultra-high performance liquid chromatography-electrospray tandem mass spectrometry (UHPLC- MS/MS) by using a porous graphitic carbon column and basic mobile phase. The results indicated that high pH value of mobile phase containing 0...
March 1, 2018: Talanta
https://www.readbyqxmd.com/read/29308099/evaluation-of-a-27-gene-inherited-cancer-panel-across-630-consecutive-patients-referred-for-testing-in-a-clinical-diagnostic-laboratory
#15
Sabrina A Gardner, Katelyn S Weymouth, Wei S Kelly, Ekaterina Bogdanova, Wenjie Chen, Daniel Lupu, Joshua Suhl, Qiandong Zeng, Ute Geigenmüller, Debbie Boles, Patricia M Okamoto, Geraldine McDowell, Melissa A Hayden, Narasimhan Nagan
Background: Extensive clinical and genetic heterogeneity of inherited cancers has allowed multi-gene panel testing to become an efficient means for identification of patients with an inherited predisposition to a broad spectrum of syndromic and nonsyndromic forms of cancer. This study reports our experience with a 27-gene inherited cancer panel on a cohort of 630 consecutive individuals referred for testing at our laboratory with the following objectives: 1. Determine the rates for positive cases and those with variants of uncertain clinical significance (VUS) relative to data published in the recent literature, 2...
2018: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/29302496/selective-pectoralis-major-muscle-denervation-in-breast-reconstruction-a-technical-modification-for-more-effective-and-cosmetic-results
#16
Marco Bernini, Donato Casella, Carlo Mariotti
The use of pectoralis major muscle (PMM) in breast reconstruction has been a mainstay for decades. In recent years, although, a novel approach, the so-called subcutaneous or pre-pectoral breast reconstruction, has been introduced advocating the advantages of sparing the pectoralis muscle. Such advantages include more natural implant ptosis and appearance, significant reduction of capsular contracture and also avoidance of implant animation and animation deformities. These are all drawbacks that the use of muscles in implant coverage inevitably involves overtime...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29297526/nanoreactors-based-on-dnazyme-functionalized-magnetic-nanoparticles-activated-by-magnetic-field
#17
Saira F Bakshi, Nataliia Guz, Andrey Zakharchenko, Han Deng, Alexei V Tumanov, Craig D Woodworth, Sergiy Minko, Dmitry M Kolpashchikov, Evgeny Katz
A new biomimetic nanoreactor design, MaBiDz, is presented based on a copolymer brush in combination with superparamagnetic nanoparticles. This cellular nanoreactor features two species of magnetic particles, each functionalized with two components of a binary deoxyribozyme system. In the presence of a target mRNA analyte and a magnetic field, the nanoreactor is assembled to form a biocompartment enclosed by the polymeric brush that enables catalytic function of the binary deoxyribozyme with enhanced kinetics...
January 3, 2018: Nanoscale
https://www.readbyqxmd.com/read/29295954/blockade-of-tnfr2-signaling-enhances-the-immunotherapeutic-effect-of-cpg-odn-in-a-mouse-model-of-colon-cancer
#18
Yingjie Nie, Jiang He, Hidekazu Shirota, Anna L Trivett, De Yang, Dennis M Klinman, Joost J Oppenheim, Xin Chen
Through the tumor necrosis factor (TNF) receptor type II (TNFR2), TNF preferentially activates, expands, and promotes the phenotypic stability of CD4+Foxp3+ regulatory T (Treg) cells. Those Treg cells that have a high abundance of TNFR2 have the maximal immunosuppressive capacity. We investigated whether targeting TNFR2 could effectively suppress the activity of Treg cells and consequently enhance the efficacy of cancer immunotherapy. We found that, relative to a suboptimal dose of the immunostimulatory Toll-like receptor 9 ligand CpG oligodeoxynucleotide (ODN), the combination of the suboptimal dose of CpG ODN with the TNFR2-blocking antibody M861 more markedly inhibited the growth of subcutaneously grafted mouse CT26 colon tumor cells...
January 2, 2018: Science Signaling
https://www.readbyqxmd.com/read/29289569/simultaneous-multiplexed-imaging-of-mrna-and-proteins-with-subcellular-resolution-in-breast-cancer-tissue-samples-by-mass-cytometry
#19
Daniel Schulz, Vito Riccardo Tomaso Zanotelli, Jana Raja Fischer, Denis Schapiro, Stefanie Engler, Xiao-Kang Lun, Hartland Warren Jackson, Bernd Bodenmiller
To build comprehensive models of cellular states and interactions in normal and diseased tissue, genetic and proteomic information must be extracted with single-cell and spatial resolution. Here, we extended imaging mass cytometry to enable multiplexed detection of mRNA and proteins in tissues. Three mRNA target species were detected by RNAscope-based metal in situ hybridization with simultaneous antibody detection of 16 proteins. Analysis of 70 breast cancer samples showed that HER2 and CK19 mRNA and protein levels are moderately correlated on the single-cell level, but that only HER2, and not CK19, has strong mRNA-to-protein correlation on the cell population level...
December 26, 2017: Cell Systems
https://www.readbyqxmd.com/read/29286493/twenty-five-years-of-the-national-academy-of-medical-sciences-of-ukraine-progress-and-priorities-for-future-of-radiation-medicine-and-biology
#20
D Bazyka
After the creation of the Academy of Medical Sciences of Ukraine in 1993 the Research Center for Radiation Medicine was among the first institutions to join the Academy (fig. 1). Estab lishing the Academy was among the first steps of the independent Ukrainian government and aimed to provide a high level health care for population. It was extremely needed for the minimization of Chornobyl medical consequences. This choice was related to a growing recognition of the scientific research in fulfilling the Сenter's mission - study of the effects of low dose radiation on human body and radiation protection of the exposed population...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
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