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Abstract Title:

Protective Effect of Two Alkaloids fromLinn. against Doxorubicin-Induced Toxicity in H9c2 Cardiomyoblasts.

Abstract Source:

Molecules. 2021 Mar 30 ;26(7). Epub 2021 Mar 30. PMID: 33808398

Abstract Author(s):

Wenna Zhou, Jian Ouyang, Na Hu, Gang Li, Honglun Wang

Article Affiliation:

Wenna Zhou

Abstract:

BACKGROUND: Doxorubicin (Dox) is one of the most frequently prescribed anti-cancer drugs. However, clinical application with Dox is limited due to its potentially fatal cumulative cardiotoxicity. N--coumaroyl-4-aminobutan-1-ol (alk-A), an organic amide alkaloid and hippophamide (alk-B), a rare pyridoindole alkaloid were successfully obtained by purification and separation of seabuckthorn seed residue in our previous research. This study was undertaken to investigate the protective effect of alk-A and alk-B against Dox-induced embryonic rat cardiac cells (H9c2 cells) apoptosis.

METHODS: H9c2 cells were treated with Dox (2.5µM) in the presence of alk-A and alk-B (10, 20, and 40 µM) and incubated for 24 h.

RESULTS: It was shown that pretreatment of the H9c2 cells with alk-A and alk-B significantly reduced Dox-induced apoptosis. Alk-A and alk-B both inhibited reactive oxygen species (ROS) production and suppressed cleaved-caspase-3 protein expression and the activation of JNK (Jun N-terminal kinases), as well as increasing ATP levels, favoring mitochondrial mitofusin protein expression, and relieving damage to mitochondrial DNA.

CONCLUSIONS: These results suggest that alk-A and alk-B can inhibit Dox-induced apoptosis in H9C2 cardiac muscle cells via inhibition of cell apoptosis and improvement of mitochondrial function, while alk-B showed more protection. Alk-B could be a potential candidate agent for protecting against cardiotoxicity in Dox-exposed patients.

Study Type : In Vitro Study

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