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https://www.readbyqxmd.com/read/28806782/the-use-of-18f-fluoro-deoxy-glucose-positron-emission-tomography-18f-fdg-pet-as-a-non-invasive-pharmacodynamic-biomarker-to-determine-the-minimally-pharmacologically-active-dose-of-azd8835-a-novel-pi3k%C3%AE-inhibitor
#1
Juliana Maynard, Sally-Ann Emmas, Francois-Xavier Ble, Herve Barjat, Emily Lawrie, Urs Hancox, Urszula M Polanska, Alison Pritchard, Kevin Hudson
BACKGROUND: The phosphatidyl inositol 3 kinase (PI3K), AKT and mammalian target of rapamycin (mTOR) signal transduction pathway is frequently de-regulated and activated in human cancer and is an important therapeutic target. AZD8835 is a PI3K inhibitor, with selectivity against PI3K α and δ isoforms, which is currently in Phase 1 clinical trials. 18F-Fluoro-deoxy-glucose positron emission tomography (18F-FDG PET) is a non-invasive pharmacodynamic imaging biomarker that has become an integral part of drug development...
2017: PloS One
https://www.readbyqxmd.com/read/28805661/the-foxn3-neat1-sin3a-repressor-complex-promotes-progression-of-hormonally-responsive-breast-cancer
#2
Wanjin Li, Zihan Zhang, Xinhua Liu, Xiao Cheng, Yi Zhang, Xiao Han, Yu Zhang, Shumeng Liu, Jianguo Yang, Bosen Xu, Lin He, Luyang Sun, Jing Liang, Yongfeng Shang
The pathophysiological function of the forkhead transcription factor FOXN3 remains to be explored. Here we report that FOXN3 is a transcriptional repressor that is physically associated with the SIN3A repressor complex in estrogen receptor-positive (ER+) cells. RNA immunoprecipitation-coupled high-throughput sequencing identified that NEAT1, an estrogen-inducible long noncoding RNA, is required for FOXN3 interactions with the SIN3A complex. ChIP-Seq and deep sequencing of RNA genomic targets revealed that the FOXN3-NEAT1-SIN3A complex represses genes including GATA3 that are critically involved in epithelial-to-mesenchymal transition (EMT)...
August 14, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28803837/silencing-of-glut1-induces-chemoresistance-via-modulation-of-akt-gsk-3%C3%AE-%C3%AE-catenin-survivin-signaling-pathway-in-breast-cancer-cells
#3
Sunhwa Oh, KeeSoo Nam, Hyungjoo Kim, Incheol Shin
Cancer cells require increased aerobic glycolysis to support rapid cell proliferation. For their increased energy demands, cancer cells express glucose transporter (Glut) proteins at a high level. Glut1 is associated with basal-like breast cancer and is considered a potential therapeutic target. To investigate the possibility of Glut1 as a therapeutic target in breast cancer cells, we downregulated Glut1 in triple-negative breast cancer (TNBC) cell lines using a short hairpin system. We determined whether Glut1 silencing might enhance anti-proliferative effect of chemotherapeutic agents...
August 10, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28803675/the-yale-fitness-intervention-trial-in-female-cancer-survivors-cardiovascular-and-physiological-outcomes
#4
M Tish Knobf, Sangchoon Jeon, Barbara Smith, Lyndsay Harris, Siobhan Thompson, Mitchel R Stacy, Karl Insogna, Albert J Sinusas
BACKGROUND: Induced premature menopause and cardio-toxic therapy increase cardiovascular disease risk in female cancer survivors. OBJECTIVE: To compare the effects of a 12 month aerobic-resistance fitness center intervention to home based physical activity on cardiovascular function and metabolic risk factors. METHODS: Subjects (N = 154) who had completed primary and/or adjuvant chemotherapy (past 3 years) were randomized to a fitness center intervention or a home based group...
August 10, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28803498/screening-circular-rna-related-to-chemotherapeutic-resistance-in-breast-cancer
#5
Danfeng Gao, Xiufen Zhang, Beibei Liu, Dong Meng, Kai Fang, Zijian Guo, Lihua Li
AIM: We aimed to identify circular RNAs (circRNAs) associated with breast cancer chemoresistance. MATERIALS & METHODS: CircRNA microarray expression profiles were obtained from Adriamycin (ADM) resistant MCF-7 breast cancer cells (MCF-7/ADM) and parental MCF-7 cells and were validated using quantitative real-time reverse transcription PCR. The expression data were analyzed bioinformatically. RESULTS: We detected 3093 circRNAs and identified 18 circRNAs that are differentially expressed between MCF-7/ADM and MCF-7 cells; after validating by quantitative real-time reverse transcription PCR, we predicted the possible miRNAs and potential target genes of the seven upregulated circRNAs using TargetScan and miRanda...
August 14, 2017: Epigenomics
https://www.readbyqxmd.com/read/28803043/structure-based-development-of-novel-triazoles-and-related-thiazolotriazoles-as-anticancer-agents-and-cdc25a-b-phosphatase-inhibitors-synthesis-in%C3%A2-vitro-biological-evaluation-molecular-docking-and-in-silico-adme-t-studies
#6
Sherif A F Rostom, Mona H Badr, Heba A Abd El Razik, Hayam M A Ashour
Synthesis of twenty nine new 1,2,4-triazoles and some derived thiazolothiadiazoles (structurally-relevant to some reported triazoles with anticancer and/or Cdc25A/B inhibitory activities) is described in this study. The obtained NCI's in vitro antitumor data revealed that five analogs (12, 15, 18, 19 and 22) displayed considerable tumor percentage growth inhibitory activity (GI%), among which the analog 18 possessed a special antitumor potential and spectrum. Additionally, the same five analogs showed a marginal GI effect on the normal breast epithelial cell line MCF-10A indicating higher selectivity towards cancer cells...
July 25, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28802528/how-young-is-too-young-in-breast-cancer-young-breast-cancer-is-not-a-unique-biological-subtype
#7
Jianfei Fu, Lunpo Wu, Wei Fu, Yinuo Tan, Tiantian Xu, Zhongwu Hong, Fan Wang, Shuguang Li
BACKGROUND: There is no uniformly adopted cutoff value to define "young patients" with breast cancer. This study was designed to determine an optimal cutoff value, to investigate prognostic factors and to explore gene expression profiles of young female breast cancer. MATERIALS AND METHODS: The Surveillance, Epidemiology, and End Results database was examined to identify cases of female breast cancer diagnosed between 2000 and 2007. The optimal cutoff value for young age was determined using the X-tile program (Yale University, version 3...
June 8, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28802177/dna-biosensors-based-on-gold-nanoparticles-modified-graphene-oxide-for-the-detection-of-breast-cancer-biomarkers-for-early-diagnosis
#8
Ayman Ali Saeed, Josep Lluís Acero Sánchez, Ciara K O'Sullivan, Mohammed Nooredeen Abbas
Two different DNA (ERBB2c and CD24c) modified gold nanoparticles and graphene oxide loaded on glassy carbon electrodes were prepared for early detection of breast cancer markers by electrochemical detection of HER2. Comparative study of ERBB2c and CD24c for the detection was carried out. A "sandwich-type" detection strategy was employed in this electrochemical DNA biosensor and its response was measured by amperometric detection. The electrochemical signal enhancement achieved via gold nanoparticles and grapheme oxide system allowed for sensitive detection of the breast cancer biomarker ERBB2 and the control marker CD24...
July 14, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/28802057/hmgb1-released-by-autophagic-cancer-associated-fibroblasts-maintains-the-stemness-of-luminal-breast-cancer-cells
#9
Xi-Long Zhao, Yong Lin, Jun Jiang, Zhuo Tang, Shuai Yang, Lu Lu, Yan Liang, Xue Liu, Jiao Tan, Xu-Gang Hu, Qin Niu, Wen-Juan Fu, Ze-Xuan Yan, De-Yu Guo, Yi-Fang Ping, Ji Ming Wang, Xia Zhang, Hsiang-Fu Kung, Xiu-Wu Bian, Xiao-Hong Yao
Cancer stem/initiating cells (CSCs/CICs) and their microenvironmental niche play a vital role in malignant tumour recurrence and metastasis. Cancer associated fibroblasts (CAFs) are major components of the niche of breast cancer initiating cells (BCICs) and their interactions may profoundly affect breast cancer progression. Autophagy has been considered as a critical process for CIC maintenance, but whether it is involved in the cross-talk between CAFs and CICs to affect tumourigenesis and pathological significance remains elusive...
August 12, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28801156/alarming-burden-of-triple-negative-breast-cancer-in-india
#10
REVIEW
Krishan K Thakur, Devivasha Bordoloi, Ajaikumar B Kunnumakkara
Breast cancer is the most prevalent cancer among women worldwide. Among the different breast cancer subtypes, triple-negative breast cancer (TNBC), which is more prevalent among younger age women, is the most aggressive form. Numerous clinicopathologic studies performed throughout the world strongly support the utterly poor prognoses and high recurrence rate of TNBC. The present report details a thorough data survey from Google and PubMed on the burden of TNBC worldwide and other associated factors, with special emphasis on its ever increasing incidence among Indian women...
July 20, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28800870/recent-advances-in-her2-positive-breast-cancer-epigenetics-susceptibility-and-therapeutic-strategies
#11
REVIEW
Heena Singla, Abhilash Ludhiadch, Raman Preet Kaur, Harish Chander, Vinod Kumar, Anjana Munshi
HER2 amplification/overexpression accounts for aggressive clinical features of HER2 positive breast cancer. Epigenetic changes including DNA methylation, histone modifications and ncRNAs/miRNAs are associated with regulation of DNA chromatin and specifically, gene transcription. Hence, these produce eminent effects upon proto-oncogenes, tumor-suppressors and key cancer-regulatory signaling pathways. Understanding of epigenomic regulation of HER2 overexpression and signaling may help uncover the unmatchable physiology of HER2 gene/protein...
August 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28800863/targeting-pi3k-akt-pathway-in-triple-negative-breast-cancer
#12
Suzette Delaloge, Louise DeForceville
No abstract text is available yet for this article.
August 8, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28800861/ipatasertib-plus-paclitaxel-versus-placebo-plus-paclitaxel-as-first-line-therapy-for-metastatic-triple-negative-breast-cancer-lotus-a-multicentre-randomised-double-blind-placebo-controlled-phase-2-trial
#13
Sung-Bae Kim, Rebecca Dent, Seock-Ah Im, Marc Espié, Sibel Blau, Antoinette R Tan, Steven J Isakoff, Mafalda Oliveira, Cristina Saura, Matthew J Wongchenko, Amy V Kapp, Wai Y Chan, Stina M Singel, Daniel J Maslyar, José Baselga
BACKGROUND: The oral AKT inhibitor ipatasertib is being investigated in cancers with a high prevalence of PI3K/AKT pathway activation, including triple-negative breast cancer. The LOTUS trial investigated the addition of ipatasertib to paclitaxel as first-line therapy for triple-negative breast cancer. METHODS: In this randomised, placebo-controlled, double-blind, phase 2 trial, women aged 18 years or older with measurable, inoperable, locally advanced or metastatic triple-negative breast cancer previously untreated with systemic therapy were recruited from 44 hospitals in South Korea, the USA, France, Spain, Taiwan, Singapore, Italy, and Belgium...
August 8, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28800545/liver-toxicity-of-chemotherapy-and-targeted-therapy-for-breast-cancer-patients-with-hepatitis-virus-infection
#14
Yu Liu, Zhan-Yi Li, Xi Li, Jia-Ni Wang, Qun-Ai Huang, Yong Huang
BACKGROUND: Chemotherapy has greatly improved the prognosis of breast cancer patients. However, it may also result in undesirable side effects such as hepatitis virus reactivation. Little information is available on the liver toxicity of chemotherapy and targeted therapy for breast cancer patients with hepatitis virus (HBV/HCV) infection. METHODS: We performed a retrospective survey of 835 patients diagnosed with breast cancer between January 2010 and December 2015 at our institution...
August 8, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28800462/imaging-biodistribution-and-in-vitro-study-of-smart-99m-tc-pamam-g4-dendrimer-as-novel-nano-complex
#15
Asghar Narmani, Kamal Yavari, Javad Mohammadnejad
Overexpression of folic acid receptor in various human tumors cells makes it as good candidate for targeting delivery of chemotherapeutic and radiopharmaceutical agents. In this research, FA used for functionalization of PEG modified PAMAM G4 dendrimer as a smart delivery of 5-FU and (99m)Tc for the breast carcinoma in order to chemotherapeutic and imaging goals. One aim of this research was assess the FA-mediated cell viability assay of PEG-PAMAM G4-FA-5FU-(99m)Tc and in vitro uptake of PEG-PAMAM G4-FA-(99m)Tc as the novel nano-complex determined on C2Cl2 (normal cell) and MCF-7 (breast cancer cell) cell lines...
August 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28799743/reducing-interstitial-fluid-pressure-ifp-and-inhibiting-pulmonary-metastasis-of-breast-cancer-by-gelatin-modified-cationic-lipid-nanoparticles
#16
Xuan Gao, Jun Zhang, Zun Huang, Tiantian Zuo, Qing Lu, Guangyu Wu, Qi Shen
Interstitial fluid pressure (IFP) in tumor is much higher than that in normal tissue and it constitutes a great obstacle for the delivery of anti-tumor drugs, which makes it a potential target for cancer therapy. In this study, cationic nanostructured lipid carriers (NLCs) were modified by gelatin with low molecular weight in order to achieve the desirable reduction of tumor IFP and improve the drug delivery as well as the chemotherapy on tumor proliferation and pulmonary metastasis. The nanoparticles were used to entrap three drugs - docetaxel (DTX), quercetin (Qu) and imatinib (IMA) - with high encapsulation efficiency of 89...
August 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28799567/identification-of-breast-cancer-mechanism-based-on-weighted-gene-coexpression-network-analysis
#17
X Guo, H Xiao, S Guo, L Dong, J Chen
Our gene expression-profiling analysis aimed to explain the mechanism of breast cancer development by identifying key pathways and constructing networks of related transcription factors (TFs) and microRNAs (miRNAs) in breast cancer tissues. Gene expression profiles of normal and breast cancer tissues were downloaded to identify differentially expressed genes (DEGs). Coexpression modules were explored using weighted gene coexpression network analysis (WGCNA). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed to discover the enriched functionally associated gene groups and define pathways in breast cancer, respectively...
August 11, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28799485/monoclonal-antibodies-a-review
#18
Surjit Singh, Nitish Kumar, Pradeep Dwiwedi, Jaykaran Charan, Rimplejeet Kaur, Preeti Sidhu, Vinay Kumar Chugh
Over the last three decades, monoclonal antibodies (MAbs) have made a striking transformation from scientific tools to powerful human therapeutics. Muromonab CD3 a murine MAb, was first FDA approved therapeutic MAb for prevention of kidney transplant rejection. Since its approval in 1986, there has been decline in the further application and approvals until the late 1990s when the first chimeric Mab, Rituximab was approved for the treatment of low grade B cell lymphoma in 1997. With the approval by licensing authorities of chimeric, followed by humanized and then fully human monoclonal antibodies, rate of approval and monoclonal antibodies available in the market for the treatment of various diseases has increased dramatically...
August 9, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28799073/immunotherapy-in-breast-cancer-the-emerging-role-of-pd-1-and-pd-l1
#19
REVIEW
François Bertucci, Anthony Gonçalves
PURPOSE OF REVIEW: The purpose of the review is to summarize the data regarding PD-L1 expression in breast cancer and the results of first clinical trials with PD-1 or PD-L1 inhibitors in patients with metastatic breast cancer. RECENT FINDINGS: PD-L1 expression is heterogeneous across primary breast cancers, and is generally associated with the presence of tumor-infiltrating lymphocytes and the presence of poor-prognosis features such as high grade, and aggressive molecular subtypes (triple-negative (TN), basal, HER2-enriched)...
August 10, 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28798691/fentanyl-promotes-breast-cancer-cell-stemness-and-epithelial-mesenchymal-transition-by-upregulating-%C3%AE-1-6-fucosylation-via-wnt-%C3%AE-catenin-signaling-pathway
#20
Hong-Fang Yang, Ming Yu, Hui-Dan Jin, Jia-Qi Yao, Zhi-Li Lu, Iddrisu B Yabasin, Qiu Yan, Qing-Ping Wen
Cancer pain is a common and severe complication of human breast cancer, and relieving pain is fundamental strategy in the treatment. Fentanyl, as an opioid analgesic, is widely used in breast cancer patients. However, little is known about its effects on stemness and epithelial-mesenchymal transition (EMT) of breast cancer cells. Aberrant protein glycosylation is involved in cancer malignancy. The α1, 6-fucosylation is an important type of glycosylation, and the elevated α1, 6-fucosylation catalyzed by fucosyltransferase VIII (FUT8) is found in many tumors...
2017: Frontiers in Physiology
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