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https://www.readbyqxmd.com/read/28337331/light-regulated-no-release-as-a-novel-strategy-to-overcome-doxorubicin-multidrug-resistance
#1
Konstantin Chegaev, Aurore Fraix, Elena Gazzano, Gamal Eldein F Abd-Ellatef, Marco Blangetti, Barbara Rolando, Sabrina Conoci, Chiara Riganti, Roberta Fruttero, Alberto Gasco, Salvatore Sortino
Nitric oxide (NO) release from a suitable NO photodonor (NOP) can be fine-tuned by visible light stimuli at doses that are not toxic to cells but that inhibit several efflux pumps; these are mainly responsible for the multidrug resistance of the anticancer agent doxorubicin (DOX). The strategy may thus increase DOX toxicity against resistant cancer cells. Moreover, a novel molecular hybrid covalently joining DOX and NOP showed similar increased toxicity toward resistant cancer cells and, in addition, lower cardiotoxicity than DOX...
March 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28336372/doxorubicin-targets-multiple-players-a-new-view-of-an-old-problem
#2
REVIEW
Donato Cappetta, Francesca Rossi, Elena Piegari, Federico Quaini, Liberato Berrino, Konrad Urbanek, Antonella De Angelis
Anthracycline cardiotoxicity remains a serious problem in paediatric and adult cancer survivors, and the advancement of cardio-oncology is a necessary step for an effective care of the patients that experience adverse cardiovascular effects. In this review, we discuss the multiple instruments used by clinicians that constitute the current strategies for primary and secondary prevention aiming at contrasting the onset of early and late doxorubicin-induced cardiotoxic events. The importance of early detection of cardiotoxicity and the following pharmacological therapy has been acknowledged with the emphasis put on impaired diastolic function, an increasingly recognized precocious sign of doxorubicin cardiotoxicity with an emerging scientific and clinical interest...
March 20, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28335788/accuracy-of-left-ventricular-ejection-fraction-by-contemporary-multiple-gated-acquisition-scanning-in-patients-with-cancer-comparison-with-cardiovascular-magnetic-resonance
#3
Hans Huang, Prabhjot S Nijjar, Jeffrey R Misialek, Anne Blaes, Nicholas P Derrico, Felipe Kazmirczak, Igor Klem, Afshin Farzaneh-Far, Chetan Shenoy
BACKGROUND: Multiple gated acquisition scanning (MUGA) is a common imaging modality for baseline and serial assessment of left ventricular ejection fraction (LVEF) for cardiotoxicity risk assessment prior to, surveillance during, and surveillance after administration of potentially cardiotoxic cancer treatment. The objective of this study was to compare the accuracy of left ventricular ejection fractions (LVEF) obtained by contemporary clinical multiple gated acquisition scans (MUGA) with reference LVEFs from cardiovascular magnetic resonance (CMR) in consecutive patients with cancer...
March 24, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28333655/biochemical-and-electrocardiographic-studies-on-the-beneficial-effects-of-gallic-acid-in-cyclophosphamide-induced-cardiorenal-dysfunction
#4
Omolola Rachel Ogunsanwo, Ademola Adetokunbo Oyagbemi, Temidayo Olutayo Omobowale, Ebunoluwa Racheal Asenuga, Adebowale Bernard Saba
Background Cardiac toxicity is one of the life-threatening complications of cancer therapy. Cyclophosphamide (CYP) is an alkylating agent with potent antineoplastic and immunosuppressive properties and possibly the most widely used antineoplastic agent. Chronic cardiotoxicity associated with CYP is characterized by progressive heart failure developing from weeks to years after therapy. Methods In this study, rats were administered with (60 mg/kg and 120 mg/kg) alone or in combination with single intraperitoneal (200 mg/kg) administration of CYP for 7 days...
March 22, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28332451/inhibitory-effect-of-fruit-juices-on-the-doxorubicin-metabolizing-activity-of-carbonyl-reductase-1
#5
Takeshi Miura, Katsutoshi Nagai, Shingo Kaneshiro, Ayako Taketomi, Toshikatsu Nakabayashi, Hiroki Konishi, Toru Nishinaka, Tomoyuki Terada
BACKGROUND AND OBJECTIVE: Doxorubicin, an anthracycline anti-cancer drug, is effective for breast cancer and childhood lymphoma. Chronic cardiotoxicity has been known as a critical adverse effect of doxorubicin and is attributed to its metabolite doxorubicinol produced by carbonyl reductase 1 (CBR1, SDR21C1). Some flavonoids have been reported to act as inhibitors for CBR1, therefore, commercially available juices containing flavonoids are likely to be applicable as a prophylactic treatment against doxorubicin-induced cardiotoxicity by suppression doxorubicinol production...
March 9, 2017: Drug Metabolism Letters
https://www.readbyqxmd.com/read/28331489/reversible-atrial-fibrillation-following-crotalinae-envenomation
#6
Dan Quan, Kenneth Zurcher
BACKGROUND: Cardiotoxicity is a documented complication of Crotalinae envenomation. Reported cardiac complications following snake envenomation have included acute myocardial infarction, electrocardiogram abnormalities and arrhythmias. Few reports exist describing arrhythmia induced by viper envenomation and to our knowledge none describe arrhythmia induced by Crotalinae envenomation. This report concerns the first known case of atrial fibrillation precipitated by rattlesnake bite. CASE PRESENTATION: A 73-year-old Caucasian man with a past medical history of hypertension, hyperlipidemia, type 1 diabetes mellitus, and a baseline first-degree atrioventricular block presented to the emergency department following a rattlesnake bite to his left lower leg...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28330818/cardio-onco-hematology-in-clinical-practice-position-paper-and-recommendations
#7
Teresa López-Fernández, Ana Martín García, Ana Santaballa Beltrán, Ángel Montero Luis, Ramón García Sanz, Pilar Mazón Ramos, Sonia Velasco Del Castillo, Esteban López de Sá Areses, Manuel Barreiro-Pérez, Rocío Hinojar Baydes, Leopoldo Pérez de Isla, Silvia Cayetana Valbuena López, Regina Dalmau González-Gallarza, Francisco Calvo-Iglesias, Juan José González Ferrer, Antonio Castro Fernández, Eva González-Caballero, Cristina Mitroi, Meritxell Arenas, Juan Antonio Virizuela Echaburu, Pascual Marco Vera, Andrés Íñiguez Romo, José Luis Zamorano, Juan Carlos Plana Gómez, José Luis López Sendón Henchel
Improvements in early detection and treatment have markedly reduced cancer-related mortality. However survival not only depends on effectively cure cancer, but prevention, diagnosis and treatment of cancer-related complications is also needed. Cardiovascular toxicity is a widespread problem across many classes of therapeutic schemes, however scientific evidence in the management of cardiovascular complications of onco-hematological patients is scarce, as these patients have been systematically excluded from clinical trials and current recommendations are based on expert consensus...
March 18, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28329187/bumped-kinase-inhibitors-for-therapy-of-cryptosporidiosis
#8
Matthew A Hulverson, Sumiti Vinayak, Ryan Choi, Deborah A Schaefer, Alejandro Castellanos-Gonzalez, Rama S R Vidadala, Carrie F Brooks, Gillian T Herbert, Dana P Betzer, Grant R Whitman, Hayley N Sparks, Samuel L M Arnold, Kasey L Rivas, Lynn K Barrett, A Clinton White, Maly Dustin J, Michael W Riggs, Boris Striepen, Wesley C Van Voorhis, Kayode K Ojo
Bumped kinase inhibitors (BKIs) of Cryptosporidium parvum calcium-dependent protein kinase 1 (CpCDPK1) are leading candidates for treatment of cryptosporidiosis diarrhea. Potential cardiotoxicity related to anti-human ether-à-go-go potassium channel (hERG) activity of the first generation anti-Cryptosporidium BKIs triggered further testing for efficacy. A luminescence assay adapted for high-throughput screening was used to measure inhibitory activities of BKIs on in vitro C. parvum. Furthermore, neonatal and interferon-γ knockout mouse models of C...
March 3, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28324265/cardiac-safety-efficacy-and-correlation-of-serial-serum-her2-extracellular-domain-shed-antigen-measurement-with-the-outcome-of-the-combined-trastuzumab-plus-cmf-in-women-with-her2-positive-metastatic-breast-cancer-results-from-the-eortc-10995-phase-ii-study
#9
Konstantinos Tryfonidis, S Marreaud, H Khaled, B De Valk, J Vermorken, M Welnicka-Jaskiewicz, K Aalders, J M S Bartlett, L Biganzoli, J Bogaerts, David Cameron
PURPOSE: Cardiotoxicity is a side effect of trastuzumab. We assessed efficacy and cardiac safety of CMF with trastuzumab (CMF+T) in HER2-positive metastatic breast cancer patients (MBC). METHODS: In this phase II study, centrally confirmed, previously treated HER2-positive MBC patients with measurable disease (per RECIST v 1.0) were enrolled. Initially, patients were randomized between 8 CMF cycles alone or combined with trastuzumab during chemotherapy, followed by 3-weekly trastuzumab maintenance till progression...
March 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28321239/xinfuli-improves-cardiac-function-histopathological-changes-and-attenuate-cardiomyocyte-apoptosis-in-rats-with-doxorubicin-induced-cardiotoxicity
#10
Pei-Pei Lu, Jie Ma, Xiao-Peng Liang, Cai-Xia Guo, Yan-Kun Yang, Kun-Qi Yang, Qi-Ming Shen, Li-Hong Ma, Xian-Liang Zhou
BACKGROUND: Xinfuli Granule (XG), a compound Chinese herbal medicine, has been effectively used in China for the treatment of heart failure for more than fifty years. This study aimed to investigate the effects and the underlying mechanisms of Xinfuli in rats with doxorubicin-induced cardiotoxicity. METHODS: Sprague-Dawley rats were treated with intraperitoneal injection of Doxorubicin (DOX, 2.5 mg/kg per week) for six weeks, and then randomly divided into four groups which received intragastrically administration of normal saline (control group) or different dosage of XG (0...
December 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28320043/effects-of-ranolazine-in-a-model-of-doxorubicin-induced-left-ventricle-diastolic-dysfunction
#11
Donato Cappetta, Grazia Esposito, Raffaele Coppini, Elena Piegari, Rosa Russo, Loreta Pia Ciuffreda, Alessia Rivellino, Lorenzo Santini, Concetta Rafaniello, Cristina Scavone, Francesco Rossi, Liberato Berrino, Konrad Urbanek, Antonella De Angelis
BACKGROUND AND PURPOSE: Doxorubicin (DOXO) is a highly effective anticancer drug but its clinical application is impeded by cardiotoxicity. Asymptomatic diastolic dysfunction can be the earliest manifestation of DOXO cardiotoxicity. Therefore, a search for therapeutic intervention that can interfere with early manifestations and possibly prevent late cardiotoxicity is warranted. Increased DOXO-dependent reactive oxygen species may explain, in part, Ca(2+) and Na(+) overload that contributes to diastolic dysfunction and development of heart failure...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28320040/mitochondria-as-a-target-for-the-cardioprotective-effects-of-cydonia-oblonga-mill-and-ficus-carica-l-in-doxorubicin-induced-cardiotoxicity
#12
Saman Gholami, Mir-Jamal Hosseini, Leila Jafari, Fatemeh Omidvar, Mohammad Kamalinejad, Vida Mashayekhi, Seyed Hojjat Hosseini, Azin Kardan, Jalal Pourahmad, Mohammad Reza Eskandari
Quince (Cydonia oblonga Mill.) and fig (Ficus carica L.) exhibit a broad spectrum of pharmacological activities. Regarding the cardiotoxic effect of doxorubicin (DOX) is mediated mainly through mitochondrial oxidative stress and dysfunction; the present study evaluated the cardioprotective effects of the aqueous extracts of Cydonia oblonga Mill. fruit (ACO) and Ficus carica L. fruit (AFC) against DOX-induced cardiotoxicity. Cardiomyocytes toxicity was induced in male Sprague Dawley rats by intraperitoneal (ip) injections of 2...
March 20, 2017: Drug Research
https://www.readbyqxmd.com/read/28316033/cardiovascular-complications-of-targeted-therapies-for-chronic-myeloid-leukemia
#13
REVIEW
Rongras Damrongwatanasuk, Michael G Fradley
The development of tyrosine kinase inhibitors (TKIs) dramatically changed the treatment landscape for many different cancers including chronic myeloid leukemia (CML). With the introduction of imatinib, the first TKI developed and approved to effectively treat CML, patient survival has increased dramatically and, in some cases, this fatal cancer can be managed as a chronic disease. Since the approval of imatinib in 2002, four additional TKIs have been developed to treat this disease including the second-generation TKIs nilotinib, dasatinib, and bosutinib and the third-generation TKI ponatinib...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28315715/sab-mediates-mitochondrial-dysfunction-involved-in-imatinib-mesylate-induced-cardiotoxicity
#14
Tara P Chambers, Luis Santiesteban, David Gomez, Jeremy W Chambers
Imatinib mesylate is an effective treatment for chronic myelogenous leukemia and gastrointestinal stromal tumors. Although imatinib mesylate is highly tolerable, it has been implicated in severe congestive heart failure in mouse models and patients. A hallmark of imatinib mesylate-induced cardiotoxicity is mitochondrial dysfunction. The mitochondrial scaffold Sab has been implicated in facilitating signaling responsible for mitochondrial dysfunction in a c-Jun N-terminal Kinase (JNK)-dependent manner. We examined the impact of Sab-mediated signaling on imatinib mesylate cardiotoxicity in H9c2 rat cardiomyocyte-like cells...
March 15, 2017: Toxicology
https://www.readbyqxmd.com/read/28315259/scutellarin-protects-against-doxorubicin-induced-acute-cardiotoxicity-and-regulates-its-accumulation-in-the-heart
#15
Xi-Peng Sun, Li-Li Wan, Quan-Jun Yang, Yan Huo, Yong-Long Han, Cheng Guo
The clinical use of doxorubicin (DOX) is limited by its dose-dependent cardiotoxicity. The present study investigated the effects of scutellarin against DOX-induced cardiotoxicity in rats using pharmacodynamic and pharmacokinetic approaches. DOX (20 mg/kg) was injected intraperitoneally (i.p.) as a single dose, and scutellarin (5 mg/kg/day) was injected intravenously (i.v.) for 3 days. Rats treated with DOX showed acute cardiotoxicity as indicated by the elevated serum lactate dehydrogenase (LDH) activity (4057...
March 17, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28315122/cardio-oncology-the-nuclear-option
#16
REVIEW
Jorge A Alvarez, Raymond R Russell
PURPOSE OF REVIEW: Cardio-oncology focuses increased effort to decrease cancer treatment-related cardiotoxicity while continuing to improve outcomes. We sought to synthesize the latest in nuclear cardiology as it pertains to the assessment of left ventricular function in preventative guidelines and comparison to other modalities, novel molecular markers of pre-clinical cardiotoxicity, and its role in cardiac amyloid diagnosis. RECENT FINDINGS: Planar ERNA (equilibrium radionuclide angiocardiography) provides a reliable and proven means of monitoring and preventing anthracycline cardiotoxicity, and SPECT ERNA using solid-state gamma cameras may provide reproducible assessments of left ventricular function with reduced radiation exposure...
April 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28314337/anticancer-treatments-and-cardiotoxicity-mechanisms-diagnostic-and-therapeutic-interventions-1st-edition
#17
(no author information available yet)
No abstract text is available yet for this article.
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28302530/regorafenib-overcomes-chemotherapeutic-multidrug-resistance-mediated-by-abcb1-transporter-in-colorectal-cancer-in-vitro-and-in-vivo-study
#18
Yi-Jun Wang, Yun-Kai Zhang, Guan-Nan Zhang, Sweilem B Al Rihani, Meng-Ning Wei, Pranav Gupta, Xiao-Yu Zhang, Suneet Shukla, Suresh V Ambudkar, Amal Kaddoumi, Zhi Shi, Zhe-Sheng Chen
Chemotherapeutic multidrug resistance (MDR) is a significant challenge to overcome in clinic practice. Several mechanisms contribute to MDR, one of which is the augmented drug efflux induced by the upregulation of ABCB1 in cancer cells. Regorafenib, a multikinase inhibitor targeting the RAS/RAF/MEK/ERK pathway, was approved by the FDA to treat metastatic colorectal cancer and gastrointestinal stromal tumors. We investigated whether and how regorafenib overcame MDR mediated by ABCB1. The results showed that regorafenib reversed the ABCB1-mediated MDR and increased the accumulation of [(3)H]-paclitaxel in ABCB1-overexpressing cells by suppressing efflux activity of ABCB1, but not altering expression level and localization of ABCB1...
March 13, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28300219/doxorubicin-induces-cardiotoxicity-through-upregulation-of-death-receptors-mediated-apoptosis-in-cardiomyocytes
#19
Liqun Zhao, Baolin Zhang
Doxorubicin is a highly effective anticancer agent but causes cardiotoxicity in many patients. The mechanisms of doxorubicin-induced cardiotoxicity remain incompletely understood. Here we investigated doxorubicin-induced cytotoxicity in human induced pluripotent stem cells-derived cardiomyocytes (iPS-CMs). We found that doxorubicin and related anthracycline agents (e.g., daunorubicin, idarubicin, and epirubicin) significantly upregulated the expression of death receptors (DRs) (TNFR1, Fas, DR4 and DR5) in iPS-derived cardiomyocytes at both protein and mRNA levels...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28299613/cardiomyopathic-toxicity-from-chemotherapy-is-there-an-opportunity-for-preemptive-intervention
#20
REVIEW
Kristopher J Swiger, Jai Singh, Daniel J Lenihan
The fight against cancer has never appeared more optimistic with multiple ongoing advances in cancer therapeutics; however, the prevention of cardiotoxicity from these treatments, both old and new, is a major focus of recent research. We recommend conceptualizing the prevention of cardiotoxicity as binary whereby primary prevention involves a uniform application of preventative efforts to anyone receiving a potentially cardiotoxic drug and secondary prevention directed towards those with left ventricular dysfunction, whether symptomatic or not...
March 2017: Current Treatment Options in Cardiovascular Medicine
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