Antisenescence Therapy Improves Function in a Human Model of Cardiac Fibrosis-on-a-Chip.

ABSTRACT: Cardiac fibrosis is a significant contributor to heart failure and is characterized by abnormal ECM deposition and impaired contractile function. We have previously developed a model of cardiac fibrosis via TGF-β treatment of engineered microtissues using heart-on-a-chip technology which incorporates human induced pluripotent stem cell-derived cardiomyocytes and cardiac fibroblasts. Here, we describe that these cardiac fibrotic tissues expressed markers associated with cellular senescence via transcriptomic analysis. Treatment of fibrotic tissues with the senolytic drugs dasatinib and quercetin (D+Q) led to an improvement of contractile function, reduced passive tension, and downregulated senescence-related gene expression, an outcome we were previously unable to achieve using standard-of-

SUBMITTER: Mourad O 

PROVIDER: S-EPMC10347691 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature