Fine tuning contractility: atrial sarcomere function in health and disease

HV Burnham, HE Cizauskas… - American Journal of …, 2024 - journals.physiology.org
The molecular mechanisms of sarcomere proteins underlie the contractile function of the
heart. Although our understanding of the sarcomere has grown tremendously, the focus has …

Emerging Concepts of Mechanisms Controlling Cardiac Tension: Focus on Familial Dilated Cardiomyopathy (DCM) and Sarcomere-Directed Therapies

RJ Solaro, PH Goldspink, BM Wolska - Biomedicines, 2024 - mdpi.com
Novel therapies for the treatment of familial dilated cardiomyopathy (DCM) are lacking.
Shaping research directions to clinical needs is critical. Triggers for the progression of the …

[HTML][HTML] Fast myosin binding protein C knockout in skeletal muscle alters length-dependent activation and myofilament structure

AL Hessel, MN Kuehn, SW Han, W Ma… - Communications …, 2024 - nature.com
In striated muscle, the sarcomeric protein myosin-binding protein-C (MyBP-C) is bound to
the myosin thick filament and is predicted to stabilize myosin heads in a docked position …

Danicamtiv Recruits Myosin Motors to Aid the Failing Heart

M Landim-Vieira, BC Knollmann - Circulation Research, 2023 - Am Heart Assoc
The search for small molecules that increase con-tractile function by directly targeting the
muscle of the failing heart can be considered the holy grail in drug development. Thus far …

Danicamtiv affected isometric force and cross-bridge kinetics similarly in skinned myocardial strips from male and female rats

PO Awinda, BJ Vander Top, KL Turner… - Journal of Muscle …, 2024 - Springer
Myotropes are pharmaceuticals that have recently been developed or are under
investigation for the treatment of heart diseases. Myotropes have had varied success in …

Cardiac length-dependent activation driven by force-dependent thick-filament dynamics

A Lewalle, G Milburn, KS Campbell, SA Niederer - Biophysical Journal, 2024 - cell.com
The length-dependent activation (LDA) of maximum force and calcium sensitivity are
established features of cardiac muscle contraction but the dominant underlying mechanisms …

[HTML][HTML] Identifying mechanisms and therapeutic targets in muscle using Bayesian parameter estimation with conditional variational autoencoders

T Tune, KB Kooiker, J Davis, T Daniel… - bioRxiv, 2024 - ncbi.nlm.nih.gov
Cardiomyopathies, often caused by mutations in genes encoding muscle proteins, are
traditionally treated by phenotyping hearts and addressing symptoms post irreversible …

Cardiac Myosin-Binding Protein C N-Terminal Interactions with Myosin: Binding Insights from Fluorescence Lifetime Studies

FL Wong - 2024 - repository.arizona.edu
Cardiac myosin-binding protein C (cMyBP-C), a sarcomeric protein associated with the thick
filament in the C-zone, finely tunes contractility and relaxation of the heart through its …