Mapping the cellular and molecular landscape of cardiac non-myocytes in murine diabetic cardiomyopathy

Charles D. Cohen, Miles J. De Blasio, Gabriella E. Farrugia, Malathi S.I. Dona, Ian Hsu, Darnel Prakoso, Helen Kiriazis, Crisdion Krstevski, David M. Nash, Mandy Li, Taylah L. Gaynor, Minh Deo, Grant R. Drummond, Rebecca H. Ritchie, Alexander R. Pinto

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

Diabetes is associated with a significantly elevated risk of heart failure. However, despite extensive efforts to characterize the phenotype of the diabetic heart, the molecular and cellular protagonists that underpin cardiac pathological remodeling in diabetes remain unclear, with a notable paucity of data regarding the impact of diabetes on non-myocytes within the heart. Here we aimed to define key differences in cardiac non-myocytes between spontaneously type-2 diabetic (db/db) and healthy control (db/h) mouse hearts. Single-cell transcriptomic analysis revealed a concerted diabetes-induced cellular response contributing to cardiac remodeling. These included cell-specific activation of gene programs relating to fibroblast hyperplasia and cell migration, and dysregulation of pathways involving vascular homeostasis and protein folding. This work offers a new perspective for understanding the cellular mediators of diabetes-induced cardiac pathology, and pathways that may be targeted to address the cardiac complications associated with diabetes.

Original languageEnglish
Article number107759
Number of pages21
JournaliScience
Volume26
Issue number10
DOIs
Publication statusPublished - 20 Oct 2023

Keywords

  • Cell biology
  • Molecular biology
  • Omics
  • Transcriptomics

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