The effect of the sphingosine-1-phosphate analogue FTY720 on atrioventricular nodal tissue
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F15%3A00062871" target="_blank" >RIV/00159816:_____/15:00062871 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14110/15:00085124
Result on the web
<a href="http://dx.doi.org/10.1111/jcmm.12549" target="_blank" >http://dx.doi.org/10.1111/jcmm.12549</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jcmm.12549" target="_blank" >10.1111/jcmm.12549</a>
Alternative languages
Result language
angličtina
Original language name
The effect of the sphingosine-1-phosphate analogue FTY720 on atrioventricular nodal tissue
Original language description
The sphingosine-1-phosphate (S1P) receptor modulator, fingolimod (FTY720), has been used for the treatment of patients with relapsing forms of multiple sclerosis, but atrioventricular (AV) conduction block have been reported in some patients after the first dose. The underlying mechanism of this AV node conduction blockade is still not well-understood. In this study, we hypothesize that expression of this particular arrhythmia might be related to a direct effect of FTY720 on AV node rather than a parasympathetic mimetic action. We, therefore, investigated the effect of FTY720 on AV nodal, using in vitro rat model preparation, under both basal as well as ischaemia/reperfusion conditions. We first look at the expression pattern of S1P receptors on the AV node using real-time PCR. Although all three S1P receptor isoforms were expressed in AVN tissues, S1P1 receptor isoform expression level was higher than S1P2 and S1P3. The effect of 25 nM FTY720 on cycle length (CL) was subsequently studied via extracellular potentials recordings. FTY720 caused a mild to moderate prolongation in CL by an average 9% in AVN (n = 10, P < 0.05) preparations. We also show that FTY720 attenuated both ischaemia and reperfusion induced AVN rhythmic disturbance. To our knowledge, these remarkable findings have not been previously reported in the literature, and stress the importance for extensive monitoring period in certain cases, especially in patients taking concurrently AV node blocker agents.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED1.100%2F02%2F0123" target="_blank" >ED1.100/02/0123: St. Anne´s University Hospital Brno - International Clinical Research Center (FNUSA-ICRC)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Cellular and Molecular Medicine
ISSN
1582-4934
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
1729-1734
UT code for WoS article
000357031200027
EID of the result in the Scopus database
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