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https://www.readbyqxmd.com/read/27903676/herg-channels-from-antitargets-to-novel-targets-for-cancer-therapy
#1
Annarosa Arcangeli, Andrea Becchetti
: In this issue of Clinical Cancer Research, evidence is provided on how to avoid cardiotoxicity when targeting hERG K+ channel for cancer therapy. hERG regulates different aspects of neoplastic progression. Although its blockade has effective anticancer effects in experimental models, it may lead to fatal arrhythmias in humans. CONCLUSIONS: HASH(0x3fc9100)
November 30, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27903214/chemotherapy-and-cardiotoxicity-in-hematologic-malignancies-a-review
#2
Antonio Stellitano, Roberta Fedele, Santina Barillà, Antonino Iaria, Carmelo Massimiliano Rao, Massimo Martino
Antineoplastic agents affect the cardiovascular system, and the incidence of cardiotoxicity is continuously growing in patients with hematologic malignancies and treated with antineoplastic therapy. Cardio-oncology is a quite young discipline, designed for diagnosis, prevention and treatment of cardiovascular complications of anticancer agents. Nowadays, with the current treatments and an accurate pharmacological control of comorbidities present at the time of the oncological diagnosis, early clinical events are infrequent, and it seems indeed that cardiotoxicity could emerge as time and years go by, after therapies completion...
November 21, 2016: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/27902477/astragalus-polysaccharide-restores-autophagic-flux-and-improves-cardiomyocyte-function-in-doxorubicin-induced-cardiotoxicity
#3
Yuan Cao, Tao Shen, Xiuqing Huang, Yajun Lin, Beidong Chen, Jing Pang, Guoping Li, Que Wang, Sylvia Zohrabian, Chao Duan, Yang Ruan, Yong Man, Shu Wang, Jian Li
Doxorubicin (adriamycin), an anthracycline antibiotic, is commonly used to treat many types of solid and hematological malignancies. Unfortunately, clinical usage of doxorubicin is limited due to the associated acute and chronic cardiotoxicity. Previous studies demonstrated that Astragalus polysaccharide (APS), the extracts of Astragalus membranaceus, had strong anti-tumor activities and anti-inflammatory effects. However, whether APS could mitigate chemotherapy-induced cardiotoxicity is unclear thus far. We used a doxorubicin-induced neonatal rat cardiomyocyte injury model and a mouse heart failure model to explore the function of APS...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27894864/integrative-approaches-for-prediction-of-cardiotoxic-drug-effects-and-mitigation-strategies
#4
EDITORIAL
Birce Onal, Thomas J Hund
No abstract text is available yet for this article.
November 25, 2016: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27894343/post-marketing-withdrawal-of-anti-obesity-medicinal-products-because-of-adverse-drug-reactions-a-systematic-review
#5
Igho J Onakpoya, Carl J Heneghan, Jeffrey K Aronson
BACKGROUND: We identified anti-obesity medications withdrawn since 1950 because of adverse drug reactions after regulatory approval, and examined the evidence used to support such withdrawals, investigated the mechanisms of the adverse reactions, and explored the trends over time. METHODS: We conducted searches in PubMed, the World Health Organization database of drugs, the websites of drug regulatory authorities, and selected full texts, and we hand searched references in retrieved documents...
November 29, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27893331/multidisciplinary-approach-to-novel-therapies-in-cardio-oncology-research-manticore-101-breast-a-randomized-trial-for-the-prevention-of-trastuzumab-associated-cardiotoxicity
#6
Edith Pituskin, John R Mackey, Sheri Koshman, Davinder Jassal, Marshall Pitz, Mark J Haykowsky, Joseph J Pagano, Kelvin Chow, Richard B Thompson, Larissa J Vos, Sunita Ghosh, Gavin Y Oudit, Justin A Ezekowitz, D Ian Paterson
Purpose The primary toxicity of trastuzumab therapy for human epidermal growth factor receptor 2-overexpressing (HER2-positive) breast cancer is dose-independent cardiac dysfunction. Angiotensin-converting enzyme inhibitors and β-blockers are recommended first-line agents for heart failure. We hypothesized that angiotensin-converting enzyme inhibitors and β-blockers could prevent trastuzumab-related cardiotoxicity. Patients and Methods In this double-blinded, placebo-controlled trial, patients with HER2-positive early breast cancer were randomly assigned to receive treatment with perindopril, bisoprolol, or placebo (1:1:1) for the duration of trastuzumab adjuvant therapy...
November 28, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27891661/synergistic-effects-of-polydatin-and-vitamin-c-in-inhibiting-cardiotoxicity-induced-by-doxorubicin-in-rats
#7
Hui-Lin Wang, Xiao-Hua Cui, Hai-Lun Yu, Rong Wu, Xu Xu, Jian-Ping Gao
The purpose of this study was to assess the synergistic effect of polydatin and vitamin C on attenuating cardiotoxicity induced by doxorubicin (DOX) in rats. Polydatin could significantly increase the activity of SOD and the heart rate, attenuate myocardial pathological damage, decrease MDA content, slightly increase arterial pressure and GSH-Px activity, reduce intervals of QRS, QT and ST, and lower FFA content. The combination of polydatin and vitamin C could significantly increase arterial pressure and heart rate, decrease QRS interval and slightly reduce ST and QT intervals, significantly attenuate myocardial pathological damage, increase the activities of GSH-Px,T-SOD, Na(+) K(+) -ATPase and Ca(2+) Mg(2+) -ATPase, and elevate PCr and ATP contents, slightly increase ADP and TAN contents and PCr/ATP, and significantly decrease the contents of MDA and FFA, when compared with those in the DOX group...
November 28, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27890669/doxorubicin-nanotechnological-overviews-from-bench-to-bedside
#8
REVIEW
Maximiliano Cagel, Estefanía Grotz, Ezequiel Bernabeu, Marcela A Moretton, Diego A Chiappetta
Doxorubicin (DOX) is considered one of the most effective chemotherapeutic agents, used as a first-line drug in numerous types of cancer. Nevertheless, it exhibits serious adverse effects, such as lethal cardiotoxicity and dose-limiting myelosuppression. In this review, we focus on the description and the clinical benefits of different DOX-loaded nanotechnological platforms, not only those commercially available but also the ones that are currently in clinical phases, such as liposomes, polymeric nanoparticles, polymer-drug conjugates, polymeric micelles and ligand-based DOX-loaded nanoformulations...
November 23, 2016: Drug Discovery Today
https://www.readbyqxmd.com/read/27889760/pamidronate-attenuates-oxidative-stress-and-energetic-metabolism-changes-but-worsens-functional-outcomes-in-acute-doxorubicin-induced-cardiotoxicity-in-rats
#9
Paula Bernardo de Carvalho, Andréa de Freitas Gonçalves, Patrícia Helena Correa Alegre, Paula Schmidt Azevedo, Meliza Goi Roscani, Carolina Marabesi Bergamasco, Pamela N Modesto, Ana Angélica Fernandes, Marcos Ferreira Minicucci, Sergio Alberto Rupp Paiva, Leonardo Antonio, Mamede Zornoff, Bertha Furlan Polegato
BACKGROUND: Cardiotoxicity is the major side effect of doxorubicin. As mechanisms that are involved in cardiotoxicity are ambiguous, new methods for attenuating cardiotoxicity are needed. Recent studies have shown that bisphosphonates can decrease oxidative stress. Therefore, the objective of this study was to evaluate the effect of pamidronate on preventing acute doxorubicin-induced cardiotoxicity. METHODS: Sixty-four male Wistar rats were allocated into four groups: the control group (C), the pamidronate group (P), the doxorubicin group (D) and the doxorubicin/pamidronate group (DP)...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27889531/sirt1-protects-cardiac-cells-against-apoptosis-induced-by-zearalenone-or-its-metabolites-%C3%AE-and-%C3%AE-zearalenol-through-an-autophagy-dependent-pathway
#10
Intidhar Ben Salem, Manel Boussabbeh, Julie Pires Da Silva, Arnaud Guilbert, Hassen Bacha, Salwa Abid-Essefi, Christophe Lemaire
Zearalenone (ZEN) is a non-steroidal estrogenic mycotoxin produced by several species of Fusarium in cereals and agricultural products. The major ZEN metabolites are α-zearalenol (α-ZOL) and β-zearalenol (β-ZOL). In the present study, we investigated the underlying mechanism of the toxicity induced by ZEN, α-ZOL and β-ZOL in cardiac cells (H9c2). We show that treatment with ZEN or its metabolites induces the activation of the mitochondrial pathway of apoptosis as characterized by an increase in ROS generation, a loss of mitochondrial transmembrane potential (ΔΨm) and an activation of caspases...
November 23, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27886160/left-ventricular-end-diastolic-volume-as-an-early-indicator-of-trastuzumab-related-cardiotoxicity-in-patients-with-her2-positive-breast-cancer-results-from-a-single-center-retrospective-study
#11
Corinna Bergamini, Flavia Torelli, Luca Ghiselli, Andrea Rossi, Laura Trevisani, Giulia Vinco, Stella Truong, Giovanni Benfari, Francesca LA Russa, Giorgio Golia, Annamaria Molino, Corrado Vassanelli
BACKGROUND: Adjuvant Trastuzumab therapy increases survival rates in patients with early HER2 positive breast cancer, although it can be potentially cardiotoxic. Aim of the study was to evaluate the prevalence of left ventricular (LV) systolic dysfunction; and the relationship between the presence of cardiovascular risk factors, cardiac therapy and/or echocardiographic parameters of systolic function at baseline and the development of cardiotoxicity in such patients. METHODS: 227 patients were retrospectively reviewed...
November 25, 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27883296/adjuvant-trastuzumab-a-10-year-overview-of-its-benefit
#12
Matteo Lambertini, Noam F Pondé, Cinzia Solinas, Evandro de Azambuja
Anti-HER2 targeted therapy is one of the key advances in the treatment of breast cancer that have occurred in the last 20 years. In the adjuvant setting, the use of trastuzumab has led to prolonged and sustained survival benefit with very little toxicity as also confirmed by the 10-year follow-up results from the pivotal trials. Despite the survival improvement, several key issues are not entirely resolved in this field. These issues have led to multiple research efforts in de-escalating or escalating the standard treatment with chemotherapy and 1 year of adjuvant trastuzumab...
November 24, 2016: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/27881009/late-cardiac-effect-of-anthracycline-therapy-in-physically-active-breast-cancer-survivors-a-prospective-study
#13
A C Nagy, P GulAcsi-BArdos, Z CserEp, L Hangody, T Forster
The late-onset cardiotoxic effect of anthracycline is known, however the early detection and prevention of subclinical myocardial damage has not been fully understood yet. Besides medical therapy regular physical activities may also play a role in the prevention and reduction of side effects of chemotherapy. The aim of our present study was to detect the effect of regular physical activities on the diastolic function and on the symptoms of late heart failure in case of anthracycline chemotherapy. The prospective study included 55 female patients (age 31-65 year, average 49...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27880817/melissa-officinalis-protects-against-doxorubicin-induced-cardiotoxicity-in-rats-and-potentiates-its-anticancer-activity-on-mcf-7-cells
#14
Alaaeldin Ahmed Hamza, Mahguob Mohamed Ahmed, Hanan Mohamed Elwey, Amr Amin
Cardiotoxicity is a limiting factor of doxorubicin (DOX)-based anticancer therapy. Due to its beneficial effects, we investigated whether standardized extract of Melissa officinalis (MO) can attenuate doxorubicin-induced cardiotoxicity and can potentiate the efficacy of DOX against human breast cancer cells. MO was administered orally to male albino rats once daily for 10 consecutive days at doses of 250, 500 and 750 mg/kg b.wt. DOX (15 mg/kg b.wt. i.p.) was administered on the 8th day. MO protected against DOX-induced leakage of cardiac enzymes and histopathological changes...
2016: PloS One
https://www.readbyqxmd.com/read/27878803/tissue-doppler-echocardiography-detects-subclinical-left-ventricular-dysfunction-in-patients-undergoing-chemotherapy-for-colon-cancer-insights-from-oncoecho-multicenter-study
#15
Edyta Płońska-Gościniak, Monika Różewicz, Jarosław Kasprzak, Andrzej Wojtarowicz, Katarzyna Mizia-Stec, Tomasz Hryniewiecki, Piotr Pysz, Andrzej Kułach, Artur Bodys, Violetta Sulżyc, Wojciech Braksator, Andrzej Szyszka, Beata Zaborska, Adrianna Gościńska-Szmagała, Maciej Siński, Dariusz Kosior, Ilona Kowalik, Zbigniew Gąsior
I BACKGROUND: Colorectal cancer (CRC) is the second most common cancer in women and the third in men in Poland. The role of chemotherapy (CTX) depends on stage of CRC: adjuvant CTX is a standard treatment in stage III and should also be considered in stage II with risk factors. AIM: The aim of the paper was to assess the cardiovascular consequences of CTX in CRC enrolled to the ONCOECHO multicenter study (2012 - 2014). To identify potential cardiotoxicity we focused on myocardial function, heart rhythm and conduction disorders and adverse cardiovascular events...
November 23, 2016: Kardiologia Polska
https://www.readbyqxmd.com/read/27878224/potential-drug-interactions-in-patients-given-antiretroviral-therapy
#16
Wendel Mombaque Dos Santos, Silvia Regina Secoli, Stela Maris de Mello Padoin
Objective: to investigate potential drug-drug interactions (PDDI) in patients with HIV infection on antiretroviral therapy. Methods: a cross-sectional study was conducted on 161 adults with HIV infection. Clinical, socio demographic, and antiretroviral treatment data were collected. To analyze the potential drug interactions, we used the software Micromedex(r). Statistical analysis was performed by binary logistic regression, with a p-value of ≤0.05 considered statistically significant...
November 21, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27875516/trastuzumab-associated-cardiac-events-in-the-persephone-trial
#17
Helena M Earl, Anne-Laure Vallier, Janet Dunn, Shrushma Loi, Emma Ogburn, Karen McAdam, Luke Hughes-Davies, Adrian Harnett, Jean Abraham, Andrew Wardley, David A Cameron, David Miles, Ioannis Gounaris, Chris Plummer, Louise Hiller
BACKGROUND: We report cardiac events in the Persephone trial which compares 6-12 months of adjuvant trastuzumab in women with confirmed HER2-positive, early-stage breast cancer. METHODS: Clinical cardiac events were defined as any of the following: symptoms and/or signs of congestive heart failure (CHF) and new or altered CHF medication. In addition, left ventricular ejection fraction (LVEF) was measured at baseline and then 3 monthly for 12 months. RESULTS: A total of 2500 patients, aged 22-82, were included: 1251 randomised to 12 months and 1249 to 6 months of trastuzumab treatment...
November 22, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27870850/a-biophysical-systems-approach-to-identifying-the-pathways-of-acute-and-chronic-doxorubicin-mitochondrial-cardiotoxicity
#18
Bernardo L de Oliveira, Steven Niederer
The clinical use of the anthracycline doxorubicin is limited by its cardiotoxicity which is associated with mitochondrial dysfunction. Redox cycling, mitochondrial DNA damage and electron transport chain inhibition have been identified as potential mechanisms of toxicity. However, the relative roles of each of these proposed mechanisms are still not fully understood. The purpose of this study is to identify which of these pathways independently or in combination are responsible for doxorubicin toxicity. A state of the art mathematical model of the mitochondria including the citric acid cycle, electron transport chain and ROS production and scavenging systems was extended by incorporating a novel representation for mitochondrial DNA damage and repair...
November 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27866063/anticancer-therapy-induced-vascular-toxicity-vegf-inhibition-and-beyond
#19
REVIEW
Daniela Di Lisi, Rosalinda Madonna, Concetta Zito, Enrico Bronte, Giuseppe Badalamenti, Paolo Parrella, Ines Monte, Carlo Gabriele Tocchetti, Antonio Russo, Giuseppina Novo
Cardiotoxicity induced by chemotherapeutic agents and radiotherapy is a growing problem. In recent years, an increasing number of new drugs with targeted action have been designed. These molecules, such as monoclonal antibodies and tyrosine kinase inhibitors, can cause different type of toxicities compared to traditional chemotherapy. However, they can also cause cardiac complications such as heart failure, arterial hypertension, QT interval prolongation and arrhythmias. Currently, a field of intense research is the vascular toxicity induced by new biologic drugs, particularly those which inhibit vascular endothelial growth factor (VEGF) and its receptor (VEGF-R) and other tyrosine kinases...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27865530/cardiac-function-and-survival-are-affected-by-crude-oil-in-larval-red-drum-sciaenops-ocellatus
#20
Alexis J Khursigara, Prescilla Perrichon, Naim Martinez Bautista, Warren W Burggren, Andrew J Esbaugh
Following exposure to weathered and non-weathered oil, lethal and sub-lethal impacts on red drum larvae were assessed using survival, morphological, and cardiotoxicity assays. The LC50 for red drum ranged from 14.6 (10.3-20.9) to 21.3 (19.1-23.8) μgl(-1) ΣPAH with no effect of exposure timing during the pre-hatch window or oil weathering. Similarly, morphological deformities showed dose responses in the low ppb range. Cardiac output showed similar sensitivity resulting in a major 70% reduction after exposure to 2...
November 17, 2016: Science of the Total Environment
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