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Apolipoprotein M Attenuates Anthracycline Cardiotoxicity and Lysosomal Injury

Research output: Contribution to journalArticlepeer-review

Abstract

Apolipoprotein M (ApoM) binds sphingosine-1-phosphate (S1P) and is inversely associated with mortality in human heart failure (HF). Here, we show that anthracyclines such as doxorubicin (Dox) reduce circulating ApoM in mice and humans, that ApoM is inversely associated with mortality in patients with anthracycline-induced heart failure, and ApoM heterozygosity in mice increases Dox-induced mortality. In the setting of Dox stress, our studies suggest ApoM can help sustain myocardial autophagic flux in a post-transcriptional manner, attenuate Dox cardiotoxicity, and prevent lysosomal injury.

Original languageEnglish
Pages (from-to)340-355
Number of pages16
JournalJACC: Basic to Translational Science
Volume8
Issue number3
DOIs
StatePublished - Mar 2023

Keywords

  • TFEB
  • anthracycline
  • apolipoprotein M
  • autophagy
  • cardiomyopathy

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