Open Access

The mRNA expression of Il6 and Pdcd1 are predictive and protective factors for doxorubicin‑induced cardiotoxicity

  • Authors:
    • Syu-Ichi Kanno
    • Akiyoshi Hara
  • View Affiliations

  • Published online on: December 3, 2020     https://doi.org/10.3892/mmr.2020.11752
  • Article Number: 113
  • Copyright: © Kanno et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Anthracyclines, such as doxorubicin (DOX), have been widely used in the treatment of a number of different solid and hematological malignancies. However, these drugs can inflict cumulative dose‑dependent and irreversible damage to the heart, and can occasionally lead to heart failure. The cardiotoxic susceptibility varies among patients treated with anthracycline, and delays in the recognition of cardiotoxicity can result in poor prognoses. Accordingly, if the risk of cardiotoxicity could be predicted prior to drug administration, it would aid in safer and more effective chemotherapy treatment. The present study was carried out to identify genes that can predict DOX‑induced cardiotoxicity (DICT). In an in vivo study, mice cumulatively treated with DOX demonstrated increases in serum levels of cardiac enzymes (aspartate aminotransferase, lactate dehydrogenase, creatine kinase MB isoenzyme and troponin T), in addition to decreases in body and heart weights. These changes were indicative of DICT, but the severity of these effects varied among individual mice. In the current study, the correlation in these mice between the extent of DICT and circulating blood concentrations of relevant transcripts before DOX administration was analyzed. Among various candidate genes, the plasma mRNA levels of the genes encoding interleukin 6 (Il6) and programmed cell death 1 (Pdcd1) in blood exhibited significant and positive correlations with the severity of DICT. In an in vitro study using cardiomyocyte H9c2 cells, knockdown of Il6 or Pdcd1 by small interfering RNA was revealed to enhance DOX‑induced apoptosis, as determined by luminescent assays. These results suggested that the levels of transcription of Il6 and Pdcd1 in cardiomyocytes serve a protective role against DICT, and that the accumulation of these gene transcripts in blood is a predictive marker for DICT. To the best of our knowledge, this is the first report to demonstrate a role for Il6 and Pdcd1 mRNA expression in DICT.
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February-2021
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Spandidos Publications style
Kanno S and Hara A: The mRNA expression of <em>Il6</em> and <em>Pdcd1</em> are predictive and protective factors for doxorubicin‑induced cardiotoxicity. Mol Med Rep 23: 113, 2021.
APA
Kanno, S., & Hara, A. (2021). The mRNA expression of <em>Il6</em> and <em>Pdcd1</em> are predictive and protective factors for doxorubicin‑induced cardiotoxicity. Molecular Medicine Reports, 23, 113. https://doi.org/10.3892/mmr.2020.11752
MLA
Kanno, S., Hara, A."The mRNA expression of <em>Il6</em> and <em>Pdcd1</em> are predictive and protective factors for doxorubicin‑induced cardiotoxicity". Molecular Medicine Reports 23.2 (2021): 113.
Chicago
Kanno, S., Hara, A."The mRNA expression of <em>Il6</em> and <em>Pdcd1</em> are predictive and protective factors for doxorubicin‑induced cardiotoxicity". Molecular Medicine Reports 23, no. 2 (2021): 113. https://doi.org/10.3892/mmr.2020.11752