Back

Functional characterization of cardiac fibroblasts in response to hemodynamic alteration

shiraishi, m.; suzuki, k.; yamaguchi, a.

2022-11-06 molecular biology
10.1101/2022.11.05.515315 bioRxiv
Show abstract

Excess deposition of extracellular matrix in the myocardium is a predictor of reduced left ventricular function. Although reducing the hemodynamic load is known to improve myocardial fibrosis, the mechanisms underlying reversal of the fibrosis have not been elucidated. We modeled normal myocardium, fibrotic myocardium and myocardium with reduced fibrosis in vitro. Fibroblasts differentiated into activated or fibrinolytic types in response to the pericellular environment. Comprehensive gene expression analysis of fibroblasts in each in vitro condition showed Selenbp1 to be one of the genes responsible for regulating differentiation of fibroblasts. In vitro knockdown of Selenbp1 enhanced fibroblast activation and inhibited conversion to the fibrinolytic form. In vivo knockdown of Selenbp1 resulted in structural changes in the left ventricle associated with progressive tissue fibrosis and left ventricular diastolic failure. Selenbp1 is involved in regulating fibroblast differentiation and appears to be one of the major molecules regulating collagen turnover in cardiac fibrosis.

Matching journals

The top 7 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.