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https://www.readbyqxmd.com/read/28437471/mir-217-inhibits-triple-negative-breast-cancer-cell-growth-migration-and-invasion-through-targeting-klf5
#1
Wenhui Zhou, Fangfang Song, Qiuju Wu, Rong Liu, Lulu Wang, Cuicui Liu, You Peng, Shuqin Mao, Jing Feng, Ceshi Chen
Triple negative breast cancer (TNBC) is one of the most aggressive breast cancers without effective targeted therapies. Numerous studies have implied that KLF5 plays an important roles in TNBC. How is KLF5 regulated by microRNAs has not been well studied. Here, we demonstrated that miR-217 down-regulates the expression of KLF5 and KLF5's downstream target gene FGF-BP and Cyclin D1 in TNBC cell lines HCC1806 and HCC1937. Consequently, miR-217 suppresses TNBC cell growth, migration, and invasion. MiR-217 suppresses TNBC, at least partially, through down-regulating the KLF5 expression...
2017: PloS One
https://www.readbyqxmd.com/read/28436684/serenoa-repens-for-lower-urinary-tract-symptoms-benign-prostatic-hyperplasia-current-evidence-and-its-clinical-implications-in-naturopathic-medicine
#2
Soo Liang Ooi, Sok Cheon Pak
OBJECTIVES: Benign prostatic hyperplasia (BPH) commonly affects men above 40 years old. The progression of BPH is often accompanied with lower urinary tract symptoms (LUTS) that can significantly affect the quality of life of the patients. Serenoa repens (saw palmetto) is a popular herbal remedy indicated for LUTS/BPH. We reviewed the current research on the efficacy of S. repens on LUTS/BPH as a monotherapy as well as combination therapies. DESIGN: Non-systematic searches were performed in PubMed for human studies and systematic reviews on the topic...
April 24, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28435291/role-of-postmastectomy-radiotherapy-in-early-stage-t1-2n0-1m0-triple-negative-breast-cancer-a-systematic-review
#3
REVIEW
Fengxia Chen, Feifei Pu
Triple-negative breast cancer (TNBC), which represents 15%-20% of all breast cancers, is defined by the absence of estrogen receptor (ER) and progesterone receptor (PR) and overexpression of human epidermal growth factor receptor 2 (HER2). Owing to the absence of specific therapeutic targets and its aggressive biologic characteristics, TNBC patients often experience a high risk of disease progression and poor overall survival. Furthermore, TNBC exhibits an early pattern of recurrence with a peak recurrence risk at 2-3 years after surgery...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28433958/feasibility-and-safety-of-vitamin-k-antagonist-monotherapy-in-atrial-fibrillation-patients-undergoing-transcatheter-aortic-valve-implantation
#4
Nicolas A Geis, Christina Kiriakou, Emmanuel Chorianopoulos, Sven T Pleger, Hugo A Katus, Raffi Bekeredjian
AIMS: We aimed to assess the efficacy and safety of vitamin K antagonist (VKA) monotherapy in atrial fibrillation (AF) patients undergoing transcatheter aortic valve implantation (TAVI). METHODS AND RESULTS: In 735 TAVIs since 2008 we identified 167 patients suffering from concomitant AF who received either VKA monotherapy (n=77), VKA plus single antiplatelet therapy (SAPT, n=41) or a triple anticoagulation regimen (n=49). Thromboembolic as well as bleeding complications were analysed for six months after TAVI...
April 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28430960/triple-site-pacing-for-cardiac-resynchronization-in-permanent-atrial-fibrillation-follow-up-results-from-a-prospective-observational-study
#5
Pedro Marques, Miguel Nobre Menezes, Gustavo Lima da Silva, Tatiana Guimarães, Ana Bernardes, Nuno Cortez-Dias, Luis Carpinteiro, João de Sousa, Fausto J Pinto
Aims: Cardiac Resynchronization Therapy (CRT) is associated with a particularly high non-response rate in patients with atrial fibrillation (AF). We aimed to assess the effectiveness of triple-site (Tri-V) pacing CRT in this population. Methods and results: Prospective observational study of patients with permanent AF who underwent CRT implantation with an additional right ventricle lead in the outflow tract septal wall. After implantation, programming mode (Tri-V or biventricular pacing) was selected based on cardiac output determination...
April 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28427809/picrasidine-g-decreases-viability-of-mda-mb-468-egfr-overexpressing-triple-negative-breast-cancer-cells-through-inhibition-of-egfr-stat3-signaling-pathway
#6
Naoya Yamashita, Manami Kondo, Shuai Zhao, Wei Li, Kazuo Koike, Kiyomitsu Nemoto, Yuichiro Kanno
Targeted therapy is unavailable for treating patients with triple-negative breast cancer (TNBC), which accounts for approximately 15% of all breast cancers. Overexpression of epidermal growth factor receptor (EGFR) is observed in approximately 30-60% of TNBCs. Therefore, developing novel strategies for inhibiting EGFR signaling is required. In the present study, a natural compound library was screened to identify molecules that target TNBCs that overexpress EGFR. Picrasidine G (PG), a naturally occurring dimeric alkaloid produced by Picrasma quassioides, decreased the viability of the MDA-MB 468 cell line (TNBC(EGFR+)) compared with other breast cancer cell lines...
March 23, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28427781/smoking-increases-the-likelihood-of-helicobacter-pylori-treatment-failure
#7
David Itskoviz, Doron Boltin, Haim Leibovitzh, Tsachi Tsadok Perets, Doron Comaneshter, Arnon Cohen, Yaron Niv, Zohar Levi
BACKGROUND AND AIMS: Data regarding the impact of smoking on the success of Helicobacter pylori (H. pylori) eradication are conflicting, partially due to the fact that sociodemographic status is associated with both smoking and H. pylori treatment success. We aimed to assess the effect of smoking on H. pylori eradication rates after controlling for sociodemographic confounders. METHODS: Included were subjects aged 15 years or older, with a first time positive C(13)-urea breath test (C(13)-UBT) between 2007 to 2014, who underwent a second C(13)-UBT after receiving clarithromycin-based triple therapy...
March 27, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28427429/vitamin-d-receptor-retinoid-x-receptor-and-peroxisome-proliferator-activated-receptor-%C3%AE-are-overexpressed-in-brca1-mutated-breast-cancer-and-predict-prognosis
#8
Sabine Heublein, Doris Mayr, Alfons Meindl, Alexandra Kircher, Udo Jeschke, Nina Ditsch
BACKGROUND: BRCA1 mutated breast cancers are commonly diagnosed as negative for classical hormone receptors i.e. estrogen receptor, progesterone receptor and/or Her2. Due to these common targets being absent the application of anti-endocrine therapies is rather limited and a certain focus has been set on discovering alternative target molecules. We recently highlighted thyroid hormone receptors (TRs) to predict prognosis in breast cancer patients that had been diagnosed a BRCA1 germline mutation...
April 20, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28425453/aptamer-mediated-impairment-of-egfr-integrin-%C3%AE-v%C3%AE-3-complex-inhibits-vasculogenic-mimicry-and-growth-of-triple-negative-breast-cancers
#9
Simona Camorani, Elvira Crescenzi, Matteo Gramanzini, Monica Fedele, Antonella Zannetti, Laura Cerchia
Current treatment options for triple-negative breast cancers (TNBCs) is limited by the absence of well-defined biomarkers, excluding a targeted therapy. Notably, epidermal growth factor receptor (EGFR) is overexpressed in a great proportion of TNBCs and is a negative prognostic factor. In clinical trials, however, existing EGFR inhibitors showed disappointing outcome. Oligonucleotide aptamers are a valid alternative to antibodies for diagnostic and therapeutic uses. Here, we prove that, when applied to aggressive TNBC cell lines with unique stem-like plasticity, the anti-EGFR CL4 aptamer, but not erlotinib or cetuximab, prevents the vasculogenic mimicry (VM) capability of the cells and destroys previously formed channels in three-dimensional culture...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425406/curing-chronic-hepatitis-c-a-cost-comparison-of-the-combination-simeprevir-plus-sofosbuvir-vs-protease-inhibitor-based-triple-therapy
#10
Jacob A Langness, David Tabano, Amanda Wieland, Sarah Tise, Lindsay Pratt, Lauren Ayres Harrington, Sonia Lin, Vahram Ghuschcyan, Kavita V Nair, Gregory T Everson
INTRODUCTION: Interferon-free, multi-direct acting antiviral (DAA) therapy for chronic hepatitis C virus (HCV) infection is highly effective and well tolerated, but costly. To gain perspective on the evolving economics of HCV therapy, we compared the cost per cure of a multi-DAA regimen with the prior standard of triple therapy. MATERIAL AND METHODS: Patients infected with HCV genotype 1 who were treated through the University of Colorado Hepatology Clinic between May 2011 and December 2014 comprised the study population...
May 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28425141/efficacy-of-helicobacter-pylori-eradication-therapies-in-korea-a-systematic-review-and-network-meta-analysis
#11
REVIEW
Yoon Suk Jung, Chan Hyuk Park, Jung Ho Park, Eunwoo Nam, Hang Lak Lee
BACKGROUND: The efficacy of Helicobacter pylori eradication regimens may depend on the country where the studies were performed because of the difference in antibiotic resistance. We aimed to analyze the efficacy of H. pylori eradication regimens in Korea where clarithromycin resistance rate is high. METHODS: We searched for all relevant randomized controlled trials published until November 2016 that investigated the efficacy of H. pylori eradication therapies in Korea...
April 19, 2017: Helicobacter
https://www.readbyqxmd.com/read/28424227/onc201-demonstrates-anti-tumor-effects-in-both-triple-negative-and-non-triple-negative-breast-cancers-through-trail-dependent-and-trail-independent-mechanisms
#12
Marie D Ralff, Christina L B Kline, Ozan C Küçükkase, Jessica Wagner, Bora Lim, David T Dicker, Varun V Prabhu, Wolfgang Oster, Wafik S El-Deiry
Breast cancer is a major cause of cancer-related death. TRAIL has been of interest as a cancer therapeutic, but only a subset of triple negative breast cancers (TNBC) is sensitive to TRAIL. The small molecule ONC201 induces expression of TRAIL and its receptor DR5. ONC201 has entered clinical trials in advanced cancers. Here we show that ONC201 is efficacious against both TNBC and non-TNBC cells (n=13)--. A subset of TNBC and non-TNBC cells succumb to ONC201-induced cell death. In 2/8 TNBC cell lines, ONC201 treatment induces caspase-8 cleavage and cell death that is blocked by TRAIL-neutralizing antibody RIK2...
April 19, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28424200/whole-exome-sequencing-of-metaplastic-breast-carcinoma-indicates-monoclonality-with-associated-ductal-carcinoma-component
#13
Bracha Avigdor, Katie Beierl, Christopher D Gocke, Daniel Zabransky, Karen Cravero, Kelly Kyker-Snowman, Berry Button, David Chu, Sarah Croessmann, Rory L Cochran, Roisin Connolly, Ben Ho Park, Ashley Cimino-Mathews, Sarah J Wheelan
Although most human cancers display a single histology, there are unusual cases where two or more distinct tissue types present within a primary tumor. One such example is metaplastic breast carcinoma, a rare but aggressive cancer with a heterogenous histology, including squamous, chondroid, and spindle cells. Metaplastic carcinomas often contain an admixed conventional ductal invasive or in situ mammary carcinoma component, and are typically triple-negative for estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 (HER-2) amplification/overexpression...
April 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28424064/effectiveness-of-triple-therapy-with-direct-acting-antivirals-for-hepatitis-c-genotype-1-infection-application-of-propensity-score-matching-in-a-national-hcv-treatment-registry
#14
Emma Gray, David J Pasta, Suzanne Norris, Aisling O'Leary
BACKGROUND: Observational studies are used to measure the effectiveness of an intervention in non-experimental, real world scenarios at the population level and are recognised as an important component of the evidence pyramid. Such data can be accrued through prospective cohort studies and a patient registry is a proven method for this type of study. The national hepatitis C (HCV) registry was established in Ireland in 2012 with the aim of monitoring the clinical and economic outcomes from new, high cost regimens for the treatment of HCV infection...
April 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28423644/disulfide-bond-disrupting-agents-activate-the-unfolded-protein-response-in-egfr-and-her2-positive-breast-tumor-cells
#15
Renan B Ferreira, Mengxiong Wang, Mary E Law, Bradley J Davis, Ashton N Bartley, Paul J Higgins, Michael S Kilberg, Katherine E Santostefano, Naohiro Terada, Coy D Heldermon, Ronald K Castellano, Brian K Law
Many breast cancer deaths result from tumors acquiring resistance to available therapies. Thus, new therapeutic agents are needed for targeting drug-resistant breast cancers. Drug-refractory breast cancers include HER2+ tumors that have acquired resistance to HER2-targeted antibodies and kinase inhibitors, and "Triple-Negative" Breast Cancers (TNBCs) that lack the therapeutic targets Estrogen Receptor, Progesterone Receptor, and HER2. A significant fraction of TNBCs overexpress the HER2 family member Epidermal Growth Factor Receptor (EGFR)...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423492/onc201-activates-er-stress-to-inhibit-the-growth-of-triple-negative-breast-cancer-cells
#16
Xun Yuan, Dhonghyo Kho, Jing Xu, Ambikai Gajan, Kongming Wu, Gen Sheng Wu
ONC201 was previously identified as a first-in-class antitumor agent and small-molecule inducer of the TRAIL (tumor necrosis factor-related apoptosis-inducing ligand) gene that induces apoptosis in cancer cells. ONC201 has a safety profile and is currently in phase II clinical trials for the treatment of various malignancies. In the current study, we examine the effect of ONC201 on triple-negative breast cancer cells (TNBC), a subtype of breast cancer that is sensitive to TRAIL. We find that ONC201 inhibits the growth of TNBC cells including TNBC cells that have developed acquired TRAIL resistance...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422487/stepwise-deoxygenation-of-nitrite-as-a-route-to-two-families-of-ruthenium-corroles-group-8-periodic-trends-and-relativistic-effects
#17
Abraham B Alemayehu, Hugo Vazquez-Lima, Kevin J Gagnon, Abhik Ghosh
Given the many applications of ruthenium porphyrins, the rarity of ruthenium corroles and the underdeveloped state of their chemistry are clearly indicative of an area ripe for significant breakthroughs. The tendency of ruthenium corroles to form unreactive metal-metal-bonded dimers has been recognized as a key impediment in this area. Herein, by exposing free-base meso-tris(p-X-phenyl)corroles, H3[TpXPC] (X = CF3, H, Me, and OMe), and [Ru(COD)Cl2]x in refluxing 2-methoxyethanol to nitrite, we have been able to reliably intercept the series Ru[TpXPC](NO) in a matter of seconds to minutes and subsequently Ru(VI)[TpXPC](N), the products of a second deoxygenation, over some 16 h...
April 19, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28422142/g-protein-coupled-kiss1-receptor-is-overexpressed-in-triple-negative-breast-cancer-and-promotes-drug-resistance
#18
Alexandra Blake, Magdalena Dragan, Rommel G Tirona, Daniel B Hardy, Muriel Brackstone, Alan B Tuck, Andy V Babwah, Moshmi Bhattacharya
Triple-negative breast cancer (TNBC) lacks the expression of estrogen receptor α, progesterone receptor and human epidermal growth factor receptor 2 (HER2). TNBC patients lack targeted therapies, as they fail to respond to endocrine and anti-HER2 therapy. Prognosis for this aggressive cancer subtype is poor and survival is limited due to the development of resistance to available chemotherapies and resultant metastases. The mechanisms regulating tumor resistance are poorly understood. Here we demonstrate that the G protein-coupled kisspeptin receptor (KISS1R) promotes drug resistance in TNBC cells...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28418873/combined-inhibition-of-gli-and-flt3-signaling-leads-to-effective-anti-leukemic-effects-in-human-acute-myeloid-leukemia
#19
Emily-Marie Latuske, Hauke Stamm, Marianne Klokow, Gabi Vohwinkel, Jana Muschhammer, Carsten Bokemeyer, Manfred Jücker, Maxim Kebenko, Walter Fiedler, Jasmin Wellbrock
Activation of the Hedgehog pathway has been implicated in the pathogenesis of several tumor types including myeloid leukemia. Previously we demonstrated that overexpression of Hedgehog downstream mediators GLI1/2 confers an adverse prognosis to patients with acute myeloid leukemia (AML) and is correlated with a FLT3 mutated status. To analyze a possible non-canonical activation of the Hedgehog pathway via FLT3 and PI3K, we performed blocking experiments utilizing inhibitors for FLT3 (sunitinib), PI3K (PF-04691502) and GLI1/2 (GANT61) in FLT3-mutated and FLT3 wildtype AML cell lines and primary blasts...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418843/cd24-expression-and-differential-resistance-to-chemotherapy-in-triple-negative-breast-cancer
#20
Xinyu Deng, Sophia Apple, Hong Zhao, Jeongyoon Song, Minna Lee, William Luo, Xiancheng Wu, Debra Chung, Richard J Pietras, Helena R Chang
Breast cancer (BC) is a leading cause of cancer-related death in women. Adjuvant systemic chemotherapies are effective in reducing risks of recurrence and have contributed to reduced BC mortality. Although targeted adjuvant treatments determined by biomarkers for endocrine and HER2-directed therapies are largely successful, predicting clinical benefit from chemotherapy is more challenging. Drug resistance is a major reason for treatment failures. Efforts are ongoing to find biomarkers to select patients most likely to benefit from chemotherapy...
March 15, 2017: Oncotarget
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