Key result
TRPV4 antagonism with HC067047 prevented stretch-induced secondary pressure augmentation, calcium overload, and contractile dysfunction in isolated aged mouse hearts.
Why the study?
The study tested whether the stretch-activated TRPV4 ion channel, expressed in aged cardiomyocytes, alters Ca2+ handling and cardiac function during increased ventricular preload and stretch.
Does TRPV4 antagonism prevent stretch-induced Ca2+ overload and contractile dysfunction in aged murine hearts?
Does TRPV4 antagonism prevent stretch-induced Ca2+ overload and contractile dysfunction in aged murine hearts?
TRPV4 mediates stretch-induced Ca2+ overload and subsequent contractile dysfunction in the aged heart, suggesting a potential therapeutic target for age-related cardiac dysfunction.
Suggests TRPV4 as target in aged hearts; hypothesis-generating for clinical translation.
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Veteto et al. (2019) studied Aged heart. TRPV4 antagonist HC067047 vs. Without TRPV4 antagonist was evaluated on Left ventricular maximal pressure (PMax) and intracellular Ca2+ levels. TRPV4 antagonism with HC067047 prevented stretch-induced secondary pressure augmentation, calcium overload, and contractile dysfunction in isolated aged mouse hearts.
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