Nonmyocytes as electrophysiological contributors to cardiac excitation and conduction

A Simon-Chica, EM Wülfers… - American Journal of …, 2023 - journals.physiology.org
Although cardiac action potential (AP) generation and propagation have traditionally been
attributed exclusively to cardiomyocytes (CM), other cell types in the heart are also capable …

Structural and functional coupling of cardiac myocytes and fibroblasts

P Camelliti, CR Green, P Kohl - Cardiovascular Gap Junctions, 2006 - karger.com
Cardiac myocytes and fibroblasts form extensive networks in the heart, with numerous
anatomical contacts between cells. Fibroblasts, obligatory components of the extracellular …

Cardiac myocyte–nonmyocyte electrotonic coupling: implications for ventricular arrhythmogenesis

P Kohl, P Camelliti - Heart rhythm, 2007 - heartrhythmjournal.com
The spread of cardiac excitation, whether conceptually based on viewing the heart as an
electrical syncytium or as a discontinuously conducting structure, is conventionally …

Cross talk between cardiac myocytes and fibroblasts: from multiscale investigative approaches to mechanisms and functional consequences

P Zhang, J Su, U Mende - American Journal of Physiology …, 2012 - journals.physiology.org
The heart is comprised of a syncytium of cardiac myocytes (CM) and surrounding
nonmyocytes, the majority of which are cardiac fibroblasts (CF). CM and CF are highly …

Electrical coupling between cardiomyocytes and fibroblasts: experimental testing of a challenging and important concept

S Nattel - Cardiovascular research, 2018 - academic.oup.com
Cardiac arrhythmias are a very important clinical problem. Ventricular tachyarrhythmias
(VTs) are a leading cause of death in the developed world, 1 and atrial fibrillation (AF) is a …

Novel insights into the electrophysiology of murine cardiac macrophages: relevance of voltage-gated potassium channels

A Simon-Chica, MC Fernández… - Cardiovascular …, 2022 - academic.oup.com
Abstract Aims Macrophages (MΦ), known for immunological roles, such as phagocytosis
and antigen presentation, have been found to electrotonically couple to cardiomyocytes …

[HTML][HTML] Cardiac macrophages and their effects on arrhythmogenesis

R Xia, P Tomsits, S Loy, Z Zhang, V Pauly… - Frontiers in …, 2022 - frontiersin.org
Cardiac electrophysiology is a complex system established by a plethora of inward and
outward ion currents in cardiomyocytes generating and conducting electrical signals in the …

Cellular coupling in the heart

P Camelliti, DJ Stuckey - Science, 2023 - science.org
Traditionally, cardiac electrophysiology has focused on myocytes—the heart muscle cells
that generate action potentials and are electrically excitable. Nonmyocytes within the heart …

Electrical coupling of cardiac myocyte cell sheets to the heart

T Eschenhagen, WH Zimmermann… - Circulation research, 2006 - Am Heart Assoc
The past 20 years have seen tremendous progress in the medical treatment of cardiac
diseases, a progress that actually translated into decreased cardiovascular morbidity and …

Physiologic, pathologic, and therapeutic paracrine modulation of cardiac excitation-contraction coupling

J Mayourian, DK Ceholski, DM Gonzalez… - Circulation …, 2018 - Am Heart Assoc
Cardiac excitation–contraction coupling (ECC) is the orchestrated process of initial myocyte
electrical excitation, which leads to calcium entry, intracellular trafficking, and subsequent …