Key result
Elevation in transmural pressure significantly increased F-actin and decreased G-actin staining in arteriolar vascular smooth muscle cells, playing an essential role in mechanosensitive constriction.
Population
Mouse tail arterioles
Comparison
Elevation in transmural pressure and… vs Baseline transmural pressure (10 mmHg)
Design
Preclinical
Authors
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Actin remodeling may mediate myogenic tone in resistance vessels; extends animal mechanisms but leaves open human translation and therapeutic targeting.
The actin cytoskeleton of vascular smooth muscle cells undergoes significant remodeling in response to elevated transmural pressure, playing an essential role in mechanosensitive myogenic constriction.
Flavahan et al. (2004) studied this question. Elevation in transmural pressure (PTM) vs. Low pressure (10 mmHg) was evaluated on Actin cytoskeleton remodeling and arteriolar constriction. Elevation in transmural pressure significantly increased F-actin and decreased G-actin staining in arteriolar vascular smooth muscle cells, playing an essential role in mechanosensitive constriction.
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