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Updated: Sep 12, 2025

Ascending Aortic Constriction in Rats for Creation of Pressure Overload Cardiac Hypertrophy Model
Published on: June 29, 2014
Inhibition of Scarb1 on Endothelial Cells Attenuates Pressure Overload-Induced Heart Failure Progression
Toshiomi Katsuki1, Dai Kusumoto2, Yohei Akiba3
1Department of Cardiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan; Department of Cardiology, Saitama City Hospital, Midori-ku, Saitama-shi, Saitama, Japan.
None:
Inappropriate endothelial cell (EC) interactions contribute to heart failure; however, their precise mechanisms remain poorly understood. This study investigated EC-fibroblast interactions mediated by Scarb1 using single-cell RNA-sequencing analysis in a mouse heart failure model. ECs exhibited inflammatory and fibrotic gene expression, with Scarb1-mediated fibroblast-EC interactions driving disease progression. EC-specific Scarb1 knockout and systemic SCARB1 inhibition attenuated heart failure progression. In vitro and spatial omics analyses confirmed the role of SCARB1 in ECs and cell-cell interaction during heart failure progression. These findings highlight SCARB1 as a promising therapeutic target for EC-focused interventions.
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