Abstract:
BACKGROUND AND PURPOSE:The human kinome consists of roughly 500 kinases, including 150 that have been proposed as therapeutic targets. Protein kinases regulate an array of signalling pathways that control metabolism, cell cycle progression, cell death, differentiation and survival. It is not surprising, then, that new kinase inhibitors developed to treat cancer, including sorafenib, also exhibit cardiotoxicity. We hypothesized that sorafenib cardiotoxicity is related to its deleterious effects on specific cardiac metabolic pathways given the critical roles of protein kinases in cardiac metabolism. EXPERIMENTAL APPROACH:FVB/N mice (10 per group) were challenged with sorafenib or vehicle control daily for 2 weeks. Echocardiographic assessment of the heart identified systolic dysfunction consistent with cardiotoxicity in sorafenib-treated mice compared to vehicle-treated controls. Heart, skeletal muscle, liver and plasma were flash frozen and prepped for non-targeted GC-MS metabolomics analysis. KEY RESULTS:Compared to vehicle-treated controls, sorafenib-treated hearts exhibited significant alterations in 11 metabolites, including markedly altered taurine/hypotaurine metabolism (25-fold enrichment), identified by pathway enrichment analysis. CONCLUSIONS AND IMPLICATIONS:These studies identified alterations in taurine/hypotaurine metabolism in the hearts and skeletal muscles of mice treated with sorafenib. Interventions that rescue or prevent these sorafenib-induced changes, such as taurine supplementation, may be helpful in attenuating sorafenib-induced cardiac injury.
journal_name
Br J Pharmacoljournal_title
British journal of pharmacologyauthors
Jensen BC,Parry TL,Huang W,Beak JY,Ilaiwy A,Bain JR,Newgard CB,Muehlbauer MJ,Patterson C,Johnson GL,Willis MSdoi
10.1111/bph.14062subject
Has Abstractpub_date
2017-12-01 00:00:00pages
4797-4811issue
24eissn
0007-1188issn
1476-5381journal_volume
174pub_type
杂志文章abstract::1 Neuropeptide Y (NPY), peptide YY (PYY) and pancreatic polypeptide (PP) differentially activate three Y receptors (Y(1), Y(2) and Y(4)) in mouse and human isolated colon. 2 The aim of this study was to characterise Y(2) receptor-mediated responses in colon mucosa and longitudinal smooth muscle preparations from wild ...
journal_title:British journal of pharmacology
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doi:10.1038/sj.bjp.0705298
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journal_title:British journal of pharmacology
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doi:10.1111/j.1476-5381.1976.tb07637.x
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abstract::1. The effect of mastoparan on phosphatidylcholine hydrolysis was examined in 1321N1 human astrocytoma cells. Mastoparan (3-30 microM) caused an accumulation of diacylglycerol (DG) and phosphatidic acd (PA) accompanied by choline release in a concentration- and time-dependent manner. 2. In the presence of 2% n-butanol...
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doi:10.1111/j.1476-5381.1995.tb16416.x
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abstract::Rat vas deferens preparations became desensitized to the alpha 1-adrenoceptor antagonist thymoxamine: after 6 h in vitro, the t 1/2 value (time to attain half the occupancy of receptors occupied at equilibrium) of the response to this drug was 1.50 fold greater in control strips (strips exposed to thymoxamine at 6 h) ...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1984.tb10113.x
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abstract::Cyclic adenosine monophosphate (cAMP) is one of the second messengers critically involved in the molecular mechanisms underlying memory formation. In the CNS, the availability of cAMP is tightly controlled by phosphodiesterase 4 (PDE4), a family of enzymes that degrades the cyclic nucleotide to inactive AMP. Among the...
journal_title:British journal of pharmacology
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journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1985.tb10563.x
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abstract:BACKGROUND AND PURPOSE:Non-alcoholic hepatic fatty liver disease (NAFLD) is a manifestation of the metabolic syndrome in the liver and non-alcoholic steatohepatitis (NASH) represents its advanced stage. R17 derived from bouchardatine, shows benefits in the metabolic syndrome, but has not been tested in the liver. The p...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/bph.14713
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journal_title:British journal of pharmacology
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abstract::Liver X receptors (LXRs) are members of the nuclear receptor superfamily that are canonically activated by oxidized derivatives of cholesterol. Since the mid-90s, numerous groups have identified LXRs as endocrine receptors that are involved in the regulation of various physiological functions. As a result, when their ...
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abstract:BACKGROUND AND PURPOSE:Gut microbiota plays an important role in type 2 diabetes mellitus (T2DM) progression. From our previous work N-(4-Hydroxyphenethyl)-3-mercapto-2-methylpropanamide (HMPA) is a potential T2DM drug. We evaluated the effect of HMPA on gut microbiota and studied the molecular mechanism underlying HMP...
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journal_title:British journal of pharmacology
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doi:10.1111/j.1476-5381.1990.tb15857.x
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abstract:BACKGROUND AND PURPOSE:Allosteric modulators of ionotropic receptors and GPCRs might constitute valuable therapeutic tools for intervention in several diseases, including Parkinson's disease (PD). However, the possibility that some of these compounds could alter neurotransmission in health and disease has not been thor...
journal_title:British journal of pharmacology
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doi:10.1111/j.1476-5381.1990.tb14128.x
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abstract::1. In human epithelial-like DLD-I cells, nitric oxide synthase (NOS) II expression was induced by interferon-gamma (100 u ml(-1)) alone and, to a larger extent, by a cytokine mixture (CM) consisting of interferon-gamma, interleukin-1beta (50 u ml(-1)) and tumor necrosis factor-alpha (10 ng ml(-1)). 2. CM-induced NOS I...
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doi:10.1038/sj.bjp.0702039
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journal_title:British journal of pharmacology
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abstract:BACKGROUND AND PURPOSE:An influx drug/proton antiporter of unknown structure has been functionally demonstrated at the blood-brain barrier. This transporter, which handles some psychoactive drugs like diphenhydramine, clonidine, oxycodone, nicotine and cocaine, could represent a new pharmacological target in drug addic...
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doi:10.1111/bph.13258
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abstract:BACKGROUND AND PURPOSE:Pulmonary arterial hypertension (PAH, type 1 pulmonary hypertension) has a 3-year survival of ~50% and is in need of new, effective therapies. In PAH, remodelling of the pulmonary artery (PA) increases pulmonary vascular resistance and can result in right heart dysfunction and failure. Genetic mu...
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journal_title:British journal of pharmacology
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journal_title:British journal of pharmacology
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journal_title:British journal of pharmacology
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