Cardiac myosin contraction and mechanotransduction in health and disease

SK Barrick, MJ Greenberg - Journal of Biological Chemistry, 2021 - ASBMB
Cardiac myosin is the molecular motor that powers heart contraction by converting chemical
energy from ATP hydrolysis into mechanical force. The power output of the heart is tightly …

Thin filament cardiomyopathies: A review of genetics, disease mechanisms, and emerging therapeutics

LK Keyt, JM Duran, QM Bui, C Chen… - Frontiers in …, 2022 - frontiersin.org
All muscle contraction occurs due to the cyclical interaction between sarcomeric thin and
thick filament proteins within the myocyte. The thin filament consists of the proteins actin …

Danicamtiv increases myosin recruitment and alters cross-bridge cycling in cardiac muscle

KB Kooiker, S Mohran, KL Turner, W Ma… - Circulation …, 2023 - Am Heart Assoc
BACKGROUND: Modulating myosin function is a novel therapeutic approach in patients with
cardiomyopathy. Danicamtiv is a novel myosin activator with promising preclinical data that …

Effect of myosin isoforms on cardiac muscle twitch of mice, rats and humans

M Prodanovic, MA Geeves, C Poggesi… - International Journal of …, 2022 - mdpi.com
To understand how pathology-induced changes in contractile protein isoforms modulate
cardiac muscle function, it is necessary to quantify the temporal-mechanical properties of …

[HTML][HTML] The effect of variable troponin C mutation thin filament incorporation on cardiac muscle twitch contractions

SM Mijailovich, M Prodanovic, C Poggesi… - Journal of molecular and …, 2021 - Elsevier
One of the complexities of understanding the pathology of familial forms of cardiac diseases
is the level of mutation incorporation in sarcomeres. Computational models of the sarcomere …

dATP elevation induces myocardial metabolic remodeling to support improved cardiac function

KN Mhatre, JD Murray, G Flint… - … of molecular and …, 2022 - pmc.ncbi.nlm.nih.gov
Hallmark features of systolic heart failure are reduced contractility and impaired metabolic
flexibility of the myocardium. Cardiomyocytes (CMs) with elevated deoxy ATP (dATP) via …

Biomechanical signals regulating the structure of the heart

JD Powers, AD McCulloch - Current Opinion in Physiology, 2022 - Elsevier
Cardiac remodeling is regulated at the cellular level by coordinated responses to
biomechanical signals, such as actomyosin contractile forces, hemodynamic loading, and …

Mechanisms of a novel regulatory light chain–dependent cardiac myosin inhibitor

K Kooiker, QF Gan, M Yu, N Sa, S Mohran… - Journal of General …, 2024 - rupress.org
Hypertrophic cardiomyopathy (HCM) is a genetic disease of the heart characterized by
thickening of the left ventricle (LV), hypercontractility, and impaired relaxation. HCM is …

Mouse Models of Cardiomyopathies Caused by Mutations in Troponin C

SB Tikunova, J Thuma, JP Davis - International journal of molecular …, 2023 - mdpi.com
Cardiac muscle contraction is regulated via Ca2+ exchange with the hetero-trimeric troponin
complex located on the thin filament. Binding of Ca2+ to cardiac troponin C, a Ca2+ sensing …

Subcellular remodeling in filamin C deficient mouse hearts impairs myocyte tension development during progression of dilated cardiomyopathy

JD Powers, NJ Kirkland, C Liu, SS Razu… - International journal of …, 2022 - mdpi.com
Dilated cardiomyopathy (DCM) is a life-threatening form of heart disease that is typically
characterized by progressive thinning of the ventricular walls, chamber dilation, and systolic …