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Histone Deacetylase Inhibitor Treatment Increases Coronary t-PA Release in a Porcine Ischemia Model
Anestesiologi, Sahlgrenska akademin, Göteborg.
Wallenberg lab, Sahlgrenska akademin, Göteborg.
Wallenberg lab, Sahlgrenska akademin, Göteborg.
Wallenberg lab, Sahlgrenska akademin, Göteborg.
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2014 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, no 5, e97260- p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: The expression of the tissue plasminogen activator gene can be affected by histone deacetylation inhibition and thus appears to be under epigenetic control.

OBJECTIVES: The study aimed to test if in vivo pharmacological intervention by valproic acid treatment would lead to increase in tissue plasminogen activator release capacity. METHODS: In an anaesthetized pig model, a controlled transient coronary occlusion was used to stimulate coronary tissue plasminogen activator release in a valproic acid treated (one week) and a non-treated group. Coronary venous blood samples from the ischemic region were collected, great cardiac vein thermodilution flow measurements were performed, and trans-coronary tissue plasminogen activator fluxes were calculated. Plasminogen activator inhibitor-1 was also measured.

RESULTS: Adequate sampling from the affected area after the 10 minute ischemic period was confirmed by lactate measurements. Fluxes for tissue plasminogen activator at minutes 1, 3, 5, 7 and 10 were measured and then used to present cumulative net tissue plasminogen activator release for the whole measurement period for both groups. Area under the curve was higher for the valproic acid treated group at 10 minutes; 932+/-173 nanograms (n = 12) compared to the non-treated group, 451+/-78 nanograms (n = 10, p = 0.023). There was no difference in levels of plasminogen activator inhibitor-1 between groups.

CONCLUSIONS: These findings support a proof of concept for histone deacetylation inhibition positive effect on tissue plasminogen activator expression in an in vivo setting. Further studies are needed to find an optimal way to implement histone deacetylation inhibition to achieve desired clinical changes in tissue plasminogen activator expression.

Place, publisher, year, edition, pages
2014. Vol. 9, no 5, e97260- p.
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Anesthesiology and Intensive Care
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URN: urn:nbn:se:umu:diva-89079DOI: 10.1371/journal.pone.0097260ISI: 000336653300099PubMedID: 24818610OAI: oai:DiVA.org:umu-89079DiVA: diva2:718461
Available from: 2014-05-21 Created: 2014-05-21 Last updated: 2017-12-05Bibliographically approved

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