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Identification of novel biomarkers for doxorubicin-induced toxicity in human cardiomyocytes derived from pluripotent stem cells
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden. (Bioinformatics)ORCID-id: 0000-0002-0402-1437
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. (Bioinformatics)ORCID-id: 0000-0003-4697-0590
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. SP Chemistry Materials and Surfaces, Gothenburg, Sweden. (Bioinformatics)
Takara Bio Europe AB (former Cellectis AB), Gothenburg, Sweden.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Toxicology, ISSN 0300-483X, E-ISSN 1879-3185, Vol. 328, s. 102-111Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Doxorubicin is a chemotherapeutic agent indicated for the treatment of a variety of cancer types, including leukaemia, lymphomas, and many solid tumours. The use of doxorubicin is, however, associated with severe cardiotoxicity, often resulting in early discontinuation of the treatment. Importantly, the toxic symptoms can occur several years after the termination of the doxorubicin administration. In this study, the toxic effects of doxorubicin exposure have been investigated in cardiomyocytes derived from human embryonic stem cells (hESC). The cells were exposed to different concentrations of doxorubicin for up to 2 days, followed by a 12 day recovery period. Notably, the cell morphology was altered during drug treatment and the cells showed a reduced contractile ability, most prominent at the highest concentration of doxorubicin at the later time points. A general cytotoxic response measured as Lactate dehydrogenase leakage was observed after 2 days' exposure compared to the vehicle control, but this response was absent during the recovery period. A similar dose-dependant pattern was observed for the release of cardiac specific troponin T (cTnT) after 1 day and 2 days of treatment with doxorubicin. Global transcriptional profiles in the cells revealed clusters of genes that were differentially expressed during doxorubicin exposure, a pattern that in some cases was sustained even throughout the recovery period, suggesting that these genes could be used as sensitive biomarkers for doxorubicin-induced toxicity in human cardiomyocytes. The results from this study show that cTnT release can be used as a measurement of acute cardiotoxicity due to doxorubicin. However, for the late onset of doxorubicin-induced cardiomyopathy, cTnT release might not be the most optimal biomarker. As an alternative, some of the genes that we identified as differentially expressed after doxorubicin exposure could serve as more relevant biomarkers, and may also help to explain the cellular mechanisms behind the late onset apoptosis associated with doxorubicin-induced cardiomyopathy.

sted, utgiver, år, opplag, sider
Elsevier, 2015. Vol. 328, s. 102-111
Emneord [en]
Biomarkers, Cardiomyocytes, Doxorubicin, Human pluripotent stem cells, Toxicity
HSV kategori
Forskningsprogram
Bioinformatik
Identifikatorer
URN: urn:nbn:se:his:diva-11417DOI: 10.1016/j.tox.2014.12.018ISI: 000349881500013PubMedID: 25529476Scopus ID: 2-s2.0-84920119624OAI: oai:DiVA.org:his-11417DiVA, id: diva2:848535
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CC BY-NC-ND 4.0

Tilgjengelig fra: 2015-08-25 Laget: 2015-08-25 Sist oppdatert: 2023-07-18bibliografisk kontrollert
Inngår i avhandling
1. In vitro toxicity testing using human pluripotent stem cell derivatives
Åpne denne publikasjonen i ny fane eller vindu >>In vitro toxicity testing using human pluripotent stem cell derivatives
2016 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
University of Gothenburg, 2016. s. 82
Emneord
toxicity testing, human pluripotent stem cells, cardiomyocytes, hepatocytes, microarray, quantitative proteomics, bioinformatics, transcriptomics, microRNA
HSV kategori
Forskningsprogram
Medicin; Bioinformatik
Identifikatorer
urn:nbn:se:his:diva-13340 (URN)978-91-629-0001-4 (ISBN)978-91-629-0002-1 (ISBN)
Disputas
2016-12-15, 09:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2017-11-27 Laget: 2017-01-26 Sist oppdatert: 2023-05-02bibliografisk kontrollert

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