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Comparative breast cancer

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https://www.readbyqxmd.com/read/29777908/breast-cancer-in-the-gcc-countries-a-focus-on-brca1-2-and-non-brca1-2-genes
#1
REVIEW
Sumaya Rahman, Hatem Zayed
The GCC is an economic alliance of six Arab countries, including Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and United Arab Emirates (UAE). The rate of endogamous marriage among the GCC countries is approaching 100%, with very high consanguineous marriage rates. Although breast cancer is on the rise in the GCC countries, there are dearth of studies reporting on the genetic epidemiology of breast cancer. In this study, we investigated the frequency of BRCA1/2 and non-BRCA1/2 mutations in breast cancer patients in the GCC countries...
May 16, 2018: Gene
https://www.readbyqxmd.com/read/29777792/human-cancer-cells-suppress-behaviors-of-endothelial-progenitor-cells-through-mir-21-targeting-il6r
#2
Wenbin Wang, Xiao Yuan, Aman Xu, Xingyang Zhu, Yanqing Zhan, Shuanhu Wang, Mulin Liu
Deep vein thrombosis (DVT) is a severe clinical process and has a high rate of fatality. Cancer patients have a high incidence rate of venous thrombosis complication and increase the mortality of cancer patients for 2-8 times. The mechanisms involved in human cancers and venous thrombosis remains unclear. In this study, we determined miR-21 expressed higher in human breast cancer, colon cancer and hepatocellular cancer tissues compared with normal tissues and expressed higher in exosomes of breast cancer and hepatocellular cancer cell lines compared with normal cells...
May 16, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29777404/randomized-trial-comparing-resection-of-primary-tumor-with-no-surgery-in-stage-iv-breast-cancer-at-presentation-protocol-mf07-01
#3
Atilla Soran, Vahit Ozmen, Serdar Ozbas, Hasan Karanlik, Mahmut Muslumanoglu, Abdullah Igci, Zafer Canturk, Zafer Utkan, Cihangir Ozaslan, Turkkan Evrensel, Cihan Uras, Erol Aksaz, Aykut Soyder, Umit Ugurlu, Cavit Col, Neslihan Cabioglu, Betül Bozkurt, Ali Uzunkoy, Neset Koksal, Bahadir M Gulluoglu, Bulent Unal, Can Atalay, Emin Yıldırım, Ergun Erdem, Semra Salimoglu, Atakan Sezer, Ayhan Koyuncu, Gunay Gurleyik, Haluk Alagol, Nalan Ulufi, Uğur Berberoglu, Mustafa Dulger, Omer Cengiz, Efe Sezgin, Ronald Johnson
BACKGROUND: The MF07-01 trial is a multicenter, phase III, randomized, controlled study comparing locoregional treatment (LRT) followed by systemic therapy (ST) with ST alone for treatment-naïve stage IV breast cancer (BC) patients. METHODS: At initial diagnosis, patients were randomized 1:1 to either the LRT or ST group. All the patients were given ST either immediately after randomization or after surgical resection of the intact primary tumor. RESULTS: The trial enrolled 274 patients: 138 in the LRT group and 136 in the ST group...
May 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29777379/the-effects-of-a-video-based-education-in-women-with-newly-diagnosed-breast-cancer-in-singapore
#4
May Leng Tan, Kim Hua Lee, Wei Sean Yong, Cheryl Rodgers
PURPOSE: The purpose of this study was to evaluate the impact of an educational video among women who were newly diagnosed with breast cancer on knowledge, anxiety, and satisfaction with their surgical decision. METHODS: A pre-post-test design was used to evaluate knowledge, anxiety, and satisfaction levels with decision-making regarding surgery among women with breast cancer. A purposive sampling strategy was implemented to compare outcomes of newly diagnosed breast cancer women who received standard of care that included breast care nurse counseling sessions and written materials to women who received standard of care plus a supplement educational video...
May 18, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29777275/overexpression-of-abcb4-contributes-to-acquired-doxorubicin-resistance-in-breast-cancer-cells-in-vitro
#5
Jia-Feng Huang, Chun-Jie Wen, Guo-Zhi Zhao, Yi Dai, Ying Li, Lan-Xiang Wu, Hong-Hao Zhou
PURPOSE: Doxorubicin is one of the most active agents in the first-line therapy for metastatic breast cancer, but its utility is partially limited by the frequent emergence of doxorubicin resistance. In this study, we aimed to investigate the role of ATP-binding cassette sub-family B, member 4 (ABCB4) in acquired doxorubicin resistance in breast cancer cells, as well as its potential mechanism. METHODS: In doxorubicin-sensitive and -resistant breast cancer cell lines MCF-7 and MDA-MB-231, the expression levels of ABCB4 were detected using real-time quantitative PCR and Western blot analysis, the DNA methylation and histone acetylation status of ABCB4 gene were investigated by bisulfite-sequencing PCR (BSP) and chromatin immunoprecipitation (ChIP) assays, and the doxorubicin sensitivity and intracellular doxorubicin accumulation were observed using cell cytotoxicity assay and flow cytometry...
May 18, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29777149/stretching-reduces-tumor-growth-in-a-mouse-breast-cancer-model
#6
L Berrueta, J Bergholz, D Munoz, I Muskaj, G J Badger, A Shukla, H J Kim, J J Zhao, H M Langevin
There is growing interest in developing non-pharmacological treatments that could boost natural defenses against cancer and contribute to primary and secondary cancer prevention. Recent studies have shown that gentle daily stretching for 10 minutes can reduce local connective tissue inflammation and fibrosis. Because mechanical factors within the stroma can influence the tumor microenvironment, we hypothesized that stretching would reduce the growth of tumors implanted within locally stretched tissues and tested this hypothesis in a mouse orthotopic breast cancer model...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777144/benefits-in-radical-mastectomy-protocol-a-randomized-trial-evaluating-the-use-of-regional-anesthesia
#7
Marcio Matsumoto, Eva M Flores, Pedro P Kimachi, Flavia V Gouveia, Mayra A Kuroki, Alfredo C S D Barros, Marcelo M C Sampaio, Felipe E M Andrade, João Valverde, Eduardo F Abrantes, Claudia M Simões, Rosana L Pagano, Raquel C R Martinez
Surgery is the first-line treatment for early, localized, or operable breast cancer. Regional anesthesia during mastectomy may offer the prevention of postoperative pain. One potential protocol is the combination of serratus anterior plane block (SAM block) with pectoral nerve block I (PECS I), but the results and potential benefits are limited. Our study compared general anesthesia with or without SAM block + PECS I during radical mastectomy with axillary node dissection and breast reconstruction using evaluations of pain, opioid consumption, side effects and serum levels of interleukin (IL)-1beta, IL-6 and IL-10...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777109/tak1-mediates-microenvironment-triggered-autocrine-signals-and-promotes-triple-negative-breast-cancer-lung-metastasis
#8
Oihana Iriondo, Yarong Liu, Grace Lee, Mostafa Elhodaky, Christian Jimenez, Lin Li, Julie Lang, Pin Wang, Min Yu
Triple-negative breast cancer (TNBC) is a highly metastatic subtype of breast cancer that has limited therapeutic options. Thus, developing novel treatments for metastatic TNBC is an urgent need. Here, we show that nanoparticle-mediated delivery of transforming growth factor-β1-activated kinase-1 (TAK1) inhibitor 5Z-7-Oxozeaenol can inhibit TNBC lung metastasis in most animals tested. P38 is a central signal downstream of TAK1 in TNBC cells in TAK1-mediated response to multiple cytokines. Following co-culturing with macrophages or fibroblasts, TNBC cells express interleukin-1 (IL1) or tumor necrosis factor-α (TNFα), respectively...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29775819/facile-synthesis-of-yolk-shell-structured-monodisperse-mesoporous-organosilica-nanoparticles-by-a-mild-alkalescent-etching-approach
#9
Jun Tao, Meng Dang, Xiaodan Su, Qing Hao, Junjie Zhang, Xiaobo Ma, Guangming Lu, Yunlei Zhang, Ying Tian, Lixing Weng, Zhaogang Teng, Lianhui Wang
In the work, yolk-shell structured mesoporous organosilica nanoparticles (YSMONs) are successfully prepared by a mild alkalescent etching approach. The method is very convenient, in which mesostructured organosilica nanospheres are directly transformed into yolk-shell structures after etching with mild alkalescent solution (e.g. sodium carbonate solution). The prepared YSMONs have ethane-bridged frameworks, a monodisperse diameter (320 nm), a large pore volume (1.0 cm3  g-1 ), a uniform mesopore (2.4 nm) and a high surface area (1327 m2  g-1 )...
May 15, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29775571/effect-of-methylglyoxal-on-reactive-oxygen-species-ki-67-and-caspase-3-expression-in-mcf-7-cells
#10
Dyah Paramita, J D P Wisnubroto
BACKGROUND: Methylglyoxal (MG) is an extremely reactive α-ketoaldehyde endogenously produced by various metabolic pathways, including the dephosphorylation of glycolytic intermediates, metabolites of the polyol pathway, and aminoacetone metabolism. MG cytotoxicity occurs through the induction of apoptosis. There are multiple mechanisms by which MG can induce apoptosis, e.g., through the generation of reactive oxygen species (ROS), induction of oxidative DNA damage, or accumulation of a specific MG-derived advanced glycation end product (AGE)...
May 15, 2018: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29774475/neuropsychological-profiles-of-breast-cancer-and-brain-tumor-cohorts-in-northeast-ontario-canada
#11
Matias Mariani, Mark William Glister Collins
PURPOSE: As developments in cancer treatment have improved outcomes, research has increasingly focused on the role of cancer-related cognitive impairment (CRCI) in quality of life for cancer survivors. Impairment profiles have been heterogeneous across studies, necessitating the study of these effects across different cohorts. The purpose of this preliminary study is to compare the memory profiles of Northeast Ontario breast and CNS cancer patients, as there is no literature which exists for profiling CRCI within this largely rural region...
May 17, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29774321/sentinel-lymph-node-metastasis-in-invasive-lobular-carcinoma-of-the-breast
#12
Hikmet Erhan Güven, Mahmut Onur Kültüroğlu, Mehmet Ali Gülçelik, Cihangir Özaslan
Objective: Invasive lobular carcinoma (ILC) of the breast makes up 5 to 15 percent of all invasive breast cancers. It has distinctive clinical and histopathological features when compared to invasive ductal carcinoma (IDC). This study intends to describe factors influencing sentinel lymph node (SLN) positivity in patients with "pure" ILC. Materials and Methods: Data of 105 patients, who were treated at a tertiary oncology center, with lobular carcinoma of the breast that were subjected to SLN biopsy was probed retrospectively...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29774319/impact-of-personality-traits-anxiety-depression-and-hopelessness-levels-on-quality-of-life-in-the-patients-with-breast-cancer
#13
Filiz İzci, Dauren Sarsanov, Zeynep İyigün Erdogan, Ahmet Serkan İlgün, Esra Çelebi, Gül Alço, Nazmiye Kocaman, Çetin Ordu, Alper Öztürk, Tomris Duymaz, Kezban Nur Pilavcı, Filiz Elbüken, Filiz Ağaçayak, Fatma Aktepe, Gizem Ünveren, Gözdem Özdem, Yeşim Eralp, Vahit Özmen
Objective: The aim of this study was to investigate the impacts of personality traits, anxiety, depression and hopelessness levels on quality of life in the patients with breast cancer. Materials and methods: The study was performed on 90 patients diagnosed with breast cancer and 90 healthy women. Sociodemographic and Clinical Data Collection Form designed by us, Beck Hopelessness Scale (BHS), Beck Anxiety Scale (BAS), Beck Depression Scale (BDS), Eysenck Personality Inventory (EPI) and Quality of Life Scale-Short Form (SF-36) were administered to patients and to control group...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29774316/dual-phase-adc-modelling-of-breast-masses-in-diffusion-weighted-imaging-comparison-with-histopathologic-findings
#14
Gökhan Ertaş, Can Onaygil, Onur Buğdaycı, Erkin Arıbal
Objective: To investigate the diagnostic value of dual-phase apparent diffusion coefficient (ADC) compared to traditional ADC values in quantitative diffusion-weighted imaging (DWI) for differentiating between benign and malignant breast masses. Materials and Methods: Diffusion-weighted images of pathologically confirmed 88 benign and 85 malignant lesions acquired using a 3.0T MR scanner were analyzed. Small region-of-interests focusing on the highest signal intensity of lesions were used...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29774109/sik2-attenuates-proliferation-and-survival-of-breast-cancer-cells-with-simultaneous-perturbation-of-mapk-and-pi3k-akt-pathways
#15
Neslihan Zohrap, Özge Saatci, Burcak Ozes, Ipek Coban, Hasan Murat Atay, Esra Battaloglu, Özgür Şahin, Kuyas Bugra
Salt Inducible Kinase2 (SIK2) has been shown to contribute to tumorigenesis in multiple tumor types in a dichotomous manner. However, little is known about its contribution to breast malignancies. Here, we report SIK2 as a potential tumor suppressor in breast cancer whose expression was reduced in tumor tissues and breast cancer cell lines compared to normal counterparts. In vitro loss- and gain-of-function experiments combined with xenograft studies demonstrated that SIK2-mediated attenuation of proliferation and survival of breast cancer cells with parallel inhibition of both Ras/Erk and PI3K/Akt pathways...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774079/long-non-coding-rnas-ac026904-1-and-uca1-a-one-two-punch-for-tgf-%C3%AE-induced-snai2-activation-and-epithelial-mesenchymal-transition-in-breast-cancer
#16
Guo-Yin Li, Wei Wang, Jian-Yong Sun, Bo Xin, Xiang Zhang, Ting Wang, Qian-Feng Zhang, Li-Bo Yao, Hua Han, Dai-Ming Fan, An-Gang Yang, Lin-Tao Jia, Lei Wang
Transforming growth factor-β (TGF-β) has received much attention as a major inducer of epithelial-mesenchymal transition (EMT) during cancer progression, mainly by activating a set of pleiotropic transcription factors including SNAI2/Slug. However, the involvement of long non-coding RNAs (lncRNAs) in TGF-β-induced Slug activation and EMT remains largely unknown. Methods: In this study, we used microarray analysis to compare lncRNA expression profiles between TGF-β treated and untreated breast cancer cells...
2018: Theranostics
https://www.readbyqxmd.com/read/29774078/targeting-intracellular-mmps-efficiently-inhibits-tumor-metastasis-and-angiogenesis
#17
Yaqi Lv, Xiangmei Zhao, Lidan Zhu, Sijia Li, Qingqing Xiao, Wei He, Lifang Yin
Treatment for metastatic cancer is a great challenge throughout the world. Commonly, directed inhibition of extracellular matrix metalloproteinases (MMPs) secreted by cancer cells can reduce metastasis. Here, a novel nanoplatform (HPMC NPs) assembled from hyaluronic acid (HA)-paclitaxel (PTX) prodrug and marimastat (MATT)/β-casein (CN) complexes was established to cure a 4T1 metastatic cancer model via targeting CD44 and intracellular, rather than extracellular, MMPs. Methods: HPMC NPs were prepared by assembling the complexes and prodrug under ultrasonic treatment, which the interaction between them was evaluated by förster resonance energy transfer, circular dichroism and fluorescence spectra...
2018: Theranostics
https://www.readbyqxmd.com/read/29774075/plectin-targeted-liposomes-enhance-the-therapeutic-efficacy-of-a-parp-inhibitor-in-the-treatment-of-ovarian-cancer
#18
Siva Sai Krishna Dasa, Galina Diakova, Ryo Suzuki, Anne M Mills, Michael F Gutknecht, Alexander L Klibanov, Jill K Slack-Davis, Kimberly A Kelly
Advances in genomics and proteomics drive precision medicine by providing actionable genetic alterations and molecularly targeted therapies, respectively. While genomic analysis and medicinal chemistry have advanced patient stratification with treatments tailored to the genetic profile of a patient's tumor, proteomic targeting has the potential to enhance the therapeutic index of drugs like poly(ADP-ribose) polymerase (PARP) inhibitors. PARP inhibitors in breast and ovarian cancer patients with BRCA1/2 mutations have shown promise...
2018: Theranostics
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#19
Elyahb Allie Kwizera, Ryan O'Connor, Vojtech Vinduska, Melody Williams, Elizabeth R Butch, Scott E Snyder, Xiang Chen, Xiaohua Huang
Exosomes are a potential source of cancer biomarkers. Probing tumor-derived exosomes can offer a potential non-invasive way to diagnose cancer, assess cancer progression, and monitor treatment responses. Novel molecular methods would facilitate exosome analysis and accelerate basic and clinical exosome research. Methods: A standard gold-coated glass microscopy slide was used to develop a miniaturized affinity-based device to capture exosomes in a target-specific manner with the assistance of low-cost 3-D printing technology...
2018: Theranostics
https://www.readbyqxmd.com/read/29773446/effects-of-preparatory-coaching-and-home-practice-for-deep-inspiration-breath-hold-on-cardiac-dose-for-left-breast-radiation-therapy
#20
A Kim, A M Kalet, N Cao, D S Hippe, L C Fang, L Young, J Meyer, E V Lang, N A Mayr
AIMS: Deep inspiration breath hold (DIBH) reduces cardiac radiation exposure by creating cardiac-chest wall separation in breast cancer radiotherapy. DIBH requires sustaining chest wall expansion for up to 40 s and involves complex co-ordination of thoraco-abdominal muscles, which may not be intuitive to patients. We investigated the effect of in-advance preparatory DIBH coaching and home practice on cardiac doses. MATERIALS AND METHODS: Successive patients from 1 February 2015 to 31 December 2016 with left-sided breast cancer who underwent tangential field radiotherapy utilising the DIBH technique were included...
May 14, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
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