Role of PAR1-Egr1 in the Initiation of Thoracic Aortic Aneurysm in Fbln4-Deficient Mice
Using a mouse model of postnatal ascending aortic aneurysms, we have reported that abnormal mechanosensing led to aneurysm formation in Fbln4SMKO with an upregulation of the mechanosensitive transcription factor, Egr.

Abstract

Objective:
Remodeling of the extracellular matrix plays a vital role in cardiovascular diseases. Using a mouse model of postnatal ascending aortic aneurysms (termed Fbln4SMKO), we have reported that abnormal mechanosensing led to aneurysm formation in Fbln4SMKO with an upregulation of the mechanosensitive transcription factor, Egr1 (Early growth response 1). However, the role of Egr1 and its upstream regulator(s) in the initiation of aneurysm development and their relationship to an aneurysmal microenvironment are unknown.
Full text of this article can be found at: https://www.ahajournals.org/doi/10.1161/ATVBAHA.120.314560