Cardiac cell modelling: observations from the heart of the cardiac physiome project

M Fink, SA Niederer, EM Cherry, FH Fenton… - Progress in biophysics …, 2011 - Elsevier
In this manuscript we review the state of cardiac cell modelling in the context of international
initiatives such as the IUPS Physiome and Virtual Physiological Human Projects, which aim …

The cell physiome: what do we need in a computational physiology framework for predicting single-cell biology?

V Rajagopal, S Arumugam, PJ Hunter… - Annual Review of …, 2022 - annualreviews.org
Modern biology and biomedicine are undergoing a big data explosion, needing advanced
computational algorithms to extract mechanistic insights on the physiological state of living …

Nanoscale analysis of ryanodine receptor clusters in dyadic couplings of rat cardiac myocytes

Y Hou, I Jayasinghe, DJ Crossman, D Baddeley… - Journal of molecular and …, 2015 - Elsevier
The contractile properties of cardiac myocytes depend on the calcium (Ca 2+) released by
clusters of ryanodine receptors (RyRs) throughout the myoplasm. Accurate quantification of …

Organization of ryanodine receptors, transverse tubules, and sodium-calcium exchanger in rat myocytes

I Jayasinghe, MB Cannell, C Soeller - Biophysical Journal, 2009 - cell.com
Confocal and total internal reflection fluorescence imaging was used to examine the
distribution of caveolin-3, sodium-calcium exchange (NCX) and ryanodine receptors (RyRs) …

Three-dimensional and chemical mapping of intracellular signaling nanodomains in health and disease with enhanced expansion microscopy

TMD Sheard, ME Hurley, J Colyer, E White… - ACS …, 2019 - ACS Publications
Nanodomains are intracellular foci which transduce signals between major cellular
compartments. One of the most ubiquitous signal transducers, the ryanodine receptor (RyR) …

[HTML][HTML] A computational model of spatio-temporal cardiac intracellular calcium handling with realistic structure and spatial flux distribution from sarcoplasmic reticulum …

MA Colman, C Pinali, AW Trafford… - PLoS computational …, 2017 - journals.plos.org
Intracellular calcium cycling is a vital component of cardiac excitation-contraction coupling.
The key structures responsible for controlling calcium dynamics are the cell membrane …

Size matters: ryanodine receptor cluster size heterogeneity potentiates calcium waves

Y Xie, Y Yang, S Galice, DM Bers, D Sato - Biophysical journal, 2019 - cell.com
Ryanodine receptors (RyRs) mediate calcium (Ca)-induced Ca release and intracellular Ca
homeostasis. In a cardiac myocyte, RyRs group into clusters of variable size from a few to …

Hierarchical clustering of ryanodine receptors enables emergence of a calcium clock in sinoatrial node cells

MD Stern, LA Maltseva, M Juhaszova… - Journal of General …, 2014 - rupress.org
The sinoatrial node, whose cells (sinoatrial node cells [SANCs]) generate rhythmic action
potentials, is the primary pacemaker of the heart. During diastole, calcium released from the …

Modular organization of cardiac energy metabolism: energy conversion, transfer and feedback regulation

R Guzun, T Kaambre, R Bagur, A Grichine… - Acta …, 2015 - Wiley Online Library
To meet high cellular demands, the energy metabolism of cardiac muscles is organized by
precise and coordinated functioning of intracellular energetic units (ICEU s). ICEU s …

Examination of the Effects of Heterogeneous Organization of RyR Clusters, Myofibrils and Mitochondria on Ca2+ Release Patterns in Cardiomyocytes

V Rajagopal, G Bass, CG Walker… - PLoS computational …, 2015 - journals.plos.org
Spatio-temporal dynamics of intracellular calcium,[Ca2+] i, regulate the contractile function
of cardiac muscle cells. Measuring [Ca2+] i flux is central to the study of mechanisms that …