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https://www.readbyqxmd.com/read/28515362/insulin-supplementation-attenuates-cancer-induced-cardiomyopathy-and-slows-tumor-disease-progression
#1
James T Thackeray, Stefan Pietzsch, Britta Stapel, Melanie Ricke-Hoch, Chun-Wei Lee, Jens P Bankstahl, Michaela Scherr, Jörg Heineke, Gesine Scharf, Arash Haghikia, Frank M Bengel, Denise Hilfiker-Kleiner
Advanced cancer induces fundamental changes in metabolism and promotes cardiac atrophy and heart failure. We discovered systemic insulin deficiency in cachectic cancer patients. Similarly, mice with advanced B16F10 melanoma (B16F10-TM) or colon 26 carcinoma (C26-TM) displayed decreased systemic insulin associated with marked cardiac atrophy, metabolic impairment, and function. B16F10 and C26 tumors decrease systemic insulin via high glucose consumption, lowering pancreatic insulin production and producing insulin-degrading enzyme...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28475458/mda5-associated-neuroinflammation-and-the-singleton-merten-syndrome-two-faces-of-the-same-type-i-interferonopathy-spectrum
#2
Insa Buers, Gillian I Rice, Yanick J Crow, Frank Rutsch
In 1973, Singleton and Merten described a new syndrome in 2 female probands with aortic and cardiac valve calcifications, early loss of secondary dentition, and widened medullary cavities of the phalanges. In 1984, Aicardi and Goutières defined a phenotype resembling congenital viral infection with basal ganglia calcification and increased protein content in the cerebrospinal fluid. Between 2006 and 2012, mutations in 6 different genes were described to be associated with Aicardi-Goutières syndrome, specifically-TREX1, RNASEH2A, RNASEH2B, RNASEH2C, ADAR, and SAMHD1...
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28403786/immune-checkpoint-inhibitors-and-cardiac-toxicity-an-emerging-issue
#3
Gilda Varricchi, Giancarlo Marone, Valentina Mercurio, Maria Rosaria Galdiero, Domenico Bonaduce, Carlo G Tocchetti
Although survival of patients with different types of cancer has improved, cardiotoxicity induced by anti-neoplastic drugs remains a critical issue. Cardiac dysfunction after treatment with anthracyclines has historically been a major problem. However, also targeted therapies and biological molecules can induce reversible and irreversible cardiac dysfunction. Cancer immunotherapies over the last years have revolutionized the clinical management of a wide spectrum of solid and hematopoietic malignancies previously endowed with poor prognosis...
April 7, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28399409/direct-pharmacological-targeting-of-a-mitochondrial-ion-channel-selectively-kills-tumor-cells-in%C3%A2-vivo
#4
Luigi Leanza, Matteo Romio, Katrin Anne Becker, Michele Azzolini, Livio Trentin, Antonella Managò, Elisa Venturini, Angela Zaccagnino, Andrea Mattarei, Luca Carraretto, Andrea Urbani, Stephanie Kadow, Lucia Biasutto, Veronica Martini, Filippo Severin, Roberta Peruzzo, Valentina Trimarco, Jan-Hendrik Egberts, Charlotte Hauser, Andrea Visentin, Gianpietro Semenzato, Holger Kalthoff, Mario Zoratti, Erich Gulbins, Cristina Paradisi, Ildiko Szabo
The potassium channel Kv1.3 is highly expressed in the mitochondria of various cancerous cells. Here we show that direct inhibition of Kv1.3 using two mitochondria-targeted inhibitors alters mitochondrial function and leads to reactive oxygen species (ROS)-mediated death of even chemoresistant cells independently of p53 status. These inhibitors killed 98% of ex vivo primary chronic B-lymphocytic leukemia tumor cells while sparing healthy B cells. In orthotopic mouse models of melanoma and pancreatic ductal adenocarcinoma, the compounds reduced tumor size by more than 90% and 60%, respectively, while sparing immune and cardiac functions...
April 10, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28373787/multimodality-imaging-evaluation-of-a-primary-cardiac-lymphoma
#5
Paolo Ciancarella, Armando Fusco, Daniele Citraro, Massimiliano Sperandio, Roberto Floris
Primary cardiac lymphoma is a rare form of non-Hodgkin lymphoma that involves the heart with extension to pericardium and great vessels. Prognosis is poor in the absence of a prompt diagnosis and adequate therapy. Differential diagnosis includes malignant neoplasms such as angiosarcoma or metastatic carcinoma and melanoma. Clinical manifestations may be heterogeneous. Multimodality imaging work-up represents the best method for tumor detection and evaluation of its size and extension: echocardiography, computed tomography, magnetic resonance imaging, and nuclear imaging are the best imaging tools...
April 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28368280/x-ray-crystal-structure-of-human-calcium-bound-s100a1
#6
Zephan Melville, Ehson Aligholizadeh, Laura E McKnight, Dylan J Weber, Edwin Pozharski, David J Weber
S100A1 is a member of the S100 family of Ca(2+)-binding proteins and regulates several cellular processes, including those involved in Ca(2+) signaling and cardiac and skeletal muscle function. In Alzheimer's disease, brain S100A1 is overexpressed and gives rise to disease pathologies, making it a potential therapeutic target. The 2.25 Å resolution crystal structure of Ca(2+)-S100A1 is solved here and is compared with the structures of other S100 proteins, most notably S100B, which is a highly homologous S100-family member that is implicated in the progression of malignant melanoma...
April 1, 2017: Acta Crystallographica. Section F, Structural Biology Communications
https://www.readbyqxmd.com/read/28323733/linear-endobronchial-ultrasound-guided-insertion-of-a-fiducial-marker-a-new-tool-for-tracking-central-lesions
#7
Alessio Casutt, Angela Koutsokera, Nicolas Peguret, Alban Lovis
Stereotactic body radiotherapy (SBRT) is an effective method for the treatment of localized primary lung tumors. Cyberknife, a highly accurate SBRT technique, follows the target during respiratory cycles using a metallic fiducial marker (FM) previously inserted into the lesion. Various methods have been described for the placement of an FM in peripheral pulmonary lesions; however, none of these is appropriate for mediastinal or hilar tumors. The placement of FMs in central lesions to achieve accurate SBRT is particularly relevant due to their higher mobility during respiratory and cardiac cycles...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28303962/identification-of-novel-chemotherapeutic-strategies-for-metastatic-uveal-melanoma
#8
Paolo Fagone, Rosario Caltabiano, Andrea Russo, Gabriella Lupo, Carmelina Daniela Anfuso, Maria Sofia Basile, Antonio Longo, Ferdinando Nicoletti, Rocco De Pasquale, Massimo Libra, Michele Reibaldi
Melanoma of the uveal tract accounts for approximately 5% of all melanomas and represents the most common primary intraocular malignancy. Despite improvements in diagnosis and more effective local therapies for primary cancer, the rate of metastatic death has not changed in the past forty years. In the present study, we made use of bioinformatics to analyze the data obtained from three public available microarray datasets on uveal melanoma in an attempt to identify novel putative chemotherapeutic options for the liver metastatic disease...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28291404/outcomes-and-effectiveness-of-posterior-occipitocervical-fusion-for-suboccipital-spinal-metastases
#9
Panya Luksanapruksa, Jacob M Buchowski, Neill M Wright, Frank H Valone, Colleen Peters, David B Bumpass
OBJECTIVE The incidence of suboccipital spinal metastases is rare but has increased given cancer patients' longer life expectancies. Operative treatment in this region is often challenging because of limited fixation points due to tumor lysis, as well as adjacent neural and vascular anatomy. Few studies have reported on this population of cancer patients. The purpose of this study was to evaluate clinical outcomes and complications of patients with suboccipital spinal metastases who had undergone posterior occipitocervical fixation...
May 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28148779/adverse-left-ventricular-remodeling-by-glycoprotein-nonmetastatic-melanoma-protein-b-in-myocardial-infarction
#10
Anne Järve, Silke Mühlstedt, Fatimunnisa Qadri, Bernadette Nickl, Herbert Schulz, Norbert Hübner, Cemil Özcelik, Michael Bader
Cardiac diseases are the leading cause of death. Available treatment approaches are not sufficient to reverse persistent cardiac damage after injury; thus, the search for new therapeutic targets is essential. Our microarray-based screening in rat hearts 24 h after myocardial infarction (MI) yielded glycoprotein nonmetastatic melanoma protein B (GPNMB), which is known to be involved in inflammation and fibrosis after tissue injury. However, its role in the heart was elusive. We found increased cardiac expression levels of GPNMB in rats and mice after MI...
February 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28105177/-18-f-fluoroethyl-l-tyrosine-positron-emission-tomography-guided-diagnosis-of-a-malignant-intramedullary-spinal-cord-tumor
#11
Sied Kebir, Okka Kimmich, Pitt Niehusmann, Florian C Gaertner, Markus Essler, Jennifer Landsberg, Thomas Klockgether, Matthias Simon, Ulrich Herrlinger, Martin Glas
Diagnosis in patients with a suspected malignant intramedullary lesion that requires biopsy for definitive diagnosis may be challenging, as spinal cord surgery carries the risk of irreversible neurological deficits. The current study presents the first case of (18)F-fluoroethyl-L-tyrosine ((18)F-FET) positron emission tomography (PET) imaging in a patient with a spinal cord tumor. The patient was unsuitable for magnetic resonance imaging due to his implanted cardiac defibrillator. (18)F-FET PET indicated a high-grade malignancy of the spinal cord, justifying tumor biopsy...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/27977496/new-onset-third-degree-atrioventricular-block-because-of-autoimmune-induced-myositis-under-treatment-with-anti-programmed-cell-death-1-nivolumab-for-metastatic-melanoma
#12
Juliane Behling, Joachim Kaes, Thomas Münzel, Stephan Grabbe, Carmen Loquai
There has been considerable progress in treating malignant melanoma over the last few years. The immune-checkpoint-inhibitors nivolumab and pembrolizumab have been approved by the Food and Drug Administration in 2014 for the therapy of metastatic melanoma. Anti-programmed cell death-1-blocking antibodies are known to cause immune-related adverse events. Physicians should be aware of common and rare side effects and pay attention to new ones. We therefore report a severe and life-threatening side effect of anti-programmed cell death-1 immunotherapy with nivolumab that has not been previously reported: the development of a third-degree atrioventricular block...
December 13, 2016: Melanoma Research
https://www.readbyqxmd.com/read/27904982/magnetic-resonance-evaluation-of-cardiac-thrombi-and-masses-by-t1-and-t2-mapping-an-observational-study
#13
Thibault Caspar, Soraya El Ghannudi, Mickaël Ohana, Aïssam Labani, Aubrietia Lawson, Patrick Ohlmann, Olivier Morel, Michel De Mathelin, Catherine Roy, Afshin Gangi, Philippe Germain
The purpose of this work was to evaluate CMR T1 and T2 mapping sequences in patients with intracardiac thrombi and masses in order to assess T1 and T2 relaxometry usefulness and to allow better etiological diagnosis. This observational study of patients scheduled for routine CMR was performed from September 2014 to August 2015. All patients referred to our department for a 1.5 T CMR were screened to participate. T1 mapping were acquired before and after Gadolinium injection; T2 mapping images were obtained before injection...
December 1, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27867676/cardiac-magnetic-resonance-for-evaluating-catheter-related-fdg-avidity
#14
Daniel Jeong, Kenneth L Gage, Claudia G Berman, Jaime L Montilla-Soler
A 53-year-old female with a history of metastatic left arm melanoma presented for F(18) fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) which showed a moderately FDG avid focus at her port catheter tip near the cavoatrial junction. Although catheter tip related FDG avidity has previously been suggested to be bland thrombus or infection, melanoma can metastasize to unusual locations including the superior vena cava. In addition, the patient had an elevated risk of anticoagulation due to a history of hemorrhagic brain metastases...
2016: Case Reports in Radiology
https://www.readbyqxmd.com/read/27813258/congenital-cutaneous-melanoma-in-a-dog
#15
Bruna Meyrer, Simone Passos Bianchi, Saulo Petinatti Pavarini, Daniel Guimarães Gerardi
BACKGROUND: Melanocytic tumours are derived from melanocytes and are common in older dogs with dark pigmented skin. Primary congenital cutaneous melanoma has been described in domestic mammals although there are no reports in the dog. HYPOTHESIS/OBJECTIVE: We describe a case of canine congenital cutaneous melanoma with rapid progression to metastasis and death. ANIMAL: A male, mixed breed dog was born with a circular ulcerated lesion near the left ear...
November 4, 2016: Veterinary Dermatology
https://www.readbyqxmd.com/read/27806233/fulminant-myocarditis-with-combination-immune-checkpoint-blockade
#16
Douglas B Johnson, Justin M Balko, Margaret L Compton, Spyridon Chalkias, Joshua Gorham, Yaomin Xu, Mellissa Hicks, Igor Puzanov, Matthew R Alexander, Tyler L Bloomer, Jason R Becker, David A Slosky, Elizabeth J Phillips, Mark A Pilkinton, Laura Craig-Owens, Nina Kola, Gregory Plautz, Daniel S Reshef, Jonathan S Deutsch, Raquel P Deering, Benjamin A Olenchock, Andrew H Lichtman, Dan M Roden, Christine E Seidman, Igor J Koralnik, Jonathan G Seidman, Robert D Hoffman, Janis M Taube, Luis A Diaz, Robert A Anders, Jeffrey A Sosman, Javid J Moslehi
Immune checkpoint inhibitors have improved clinical outcomes associated with numerous cancers, but high-grade, immune-related adverse events can occur, particularly with combination immunotherapy. We report the cases of two patients with melanoma in whom fatal myocarditis developed after treatment with ipilimumab and nivolumab. In both patients, there was development of myositis with rhabdomyolysis, early progressive and refractory cardiac electrical instability, and myocarditis with a robust presence of T-cell and macrophage infiltrates...
November 3, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27792834/biphasic-effects-of-propranolol-on-tumour-growth-in-b16f10-melanoma-bearing-mice
#17
Sonia Maccari, Maria Buoncervello, Andrea Rampin, Massimo Spada, Daniele Macchia, Luciana Giordani, Tonino Stati, Claudia Bearzi, Liviana Catalano, Roberto Rizzi, Lucia Gabriele, Giuseppe Marano
BACKGROUND AND PURPOSE: Propranolol is a vasoactive drug that shows antiangiogenic and antitumour activities in melanoma. However, it is unknown whether these activities are dose-dependent and whether there is a relationship between systemic vascular effects of propranolol and anti-melanoma activity. EXPERIMENTAL APPROACH: Effects of increasing doses of propranolol (10, 20, 30 and 40 mg·kg(-1) ·day(-1) ) on tumour growth were studied in B16F10 melanoma-bearing mice...
January 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27777770/safety-and-efficacy-of-anti-pd-1-in-patients-with-baseline-cardiac-renal-or-hepatic-dysfunction
#18
Bridgette A Kanz, Megan H Pollack, Romany Johnpulle, Igor Puzanov, Leora Horn, Alicia Morgans, Jeffrey A Sosman, Suthee Rapisuwon, R Martin Conry, Zeynep Eroglu, Douglas B Johnson
BACKGROUND: Anti-PD-1 therapy is increasingly used in various advanced malignancies. Patients with baseline organ dysfunction are largely excluded from clinical trials. Therefore it is unclear whether anti-PD-1 therapy is safe or effective in this setting. Further, these patients are often not candidates for other anti-cancer therapies, highlighting their need for active treatment options. METHODS: We performed a retrospective analysis of patients from multiple centers with advanced solid tumors and baseline organ dysfunction who received anti-PD-1 therapy...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27774970/massive-pulmonary-embolism-and-a-cardiac-mass-thrombus-or-metastasis
#19
Murat Gül, Naci Babat, Fatih Mehmet Uçar, Mehmet Serdar Kuyumcu, Özcan Özeke
Cardiac mass can be described as an abnormal structure within or directly contiguous to the heart. Tumors and thrombi are the most common types of cardiac masses. Intracardiac thrombi have been encountered in various clinical settings and can result in severe morbidity and mortality due to embolic events. Cardiac neoplasms are extremely rare, and are usually metastatic tumors. The major primary malignancies associated with cardiac metastases include cancers of the lung, breast, stomach, and liver, and lymphoma, leukemia, and melanoma...
October 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/27695188/melanoma-to-the-heart
#20
Charis G Durham, James A Hall, Erica J Fidone, Ryan Mack, Austin L Metting
Malignant melanoma is the third most common skin cancer yet has the highest mortality rate due to its predilection for metastasis. While the diagnosis of antemortem melanoma with cardiac metastasis is relatively uncommon, diagnosing malignant melanoma itself by first identifying a cardiac metastasis is even more rare. This vignette describes an antemortem diagnosis of melanoma in a 50-year-old woman through identification of metastasis to multiple sites, including the tricuspid valve.
October 2016: Proceedings of the Baylor University Medical Center
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