PUBLICATION
Hemodynamic Forces Regulate Cardiac Regeneration-Responsive Enhancer Activity during Ventricle Regeneration
- Authors
- Geng, F., Ma, J., Li, X., Hu, Z., Zhang, R.
- ID
- ZDB-PUB-210501-16
- Date
- 2021
- Source
- International Journal of Molecular Sciences 22(8): (Journal)
- Registered Authors
- Zhang, Ruilin
- Keywords
- Notch signaling, heart regeneration, hemodynamics, regeneration-responsive enhancer
- MeSH Terms
-
- Animals
- Heart Ventricles/metabolism*
- Hemodynamics*
- Myocardium/metabolism*
- Regeneration*
- Ventricular Function*
- Zebrafish/genetics
- Zebrafish/metabolism*
- PubMed
- 33920448 Full text @ Int. J. Mol. Sci.
Citation
Geng, F., Ma, J., Li, X., Hu, Z., Zhang, R. (2021) Hemodynamic Forces Regulate Cardiac Regeneration-Responsive Enhancer Activity during Ventricle Regeneration. International Journal of Molecular Sciences. 22(8):.
Abstract
Cardiac regenerative capacity varies widely among vertebrates. Zebrafish can robustly regenerate injured hearts and are excellent models to study the mechanisms of heart regeneration. Recent studies have shown that enhancers are able to respond to injury and regulate the regeneration process. However, the mechanisms to activate these regeneration-responsive enhancers (RREs) remain poorly understood. Here, we utilized transient and transgenic analysis combined with a larval zebrafish ventricle ablation model to explore the activation and regulation of a representative RRE. lepb-linked enhancer sequence (LEN) directed enhanced green fluorescent protein (EGFP) expression in response to larval ventricle regeneration and such activation was attenuated by hemodynamic force alteration and mechanosensation pathway modulation. Further analysis revealed that Notch signaling influenced the endocardial LEN activity as well as endogenous lepb expression. Altogether, our work has established zebrafish models for rapid characterization of cardiac RREs in vivo and provides novel insights on the regulation of LEN by hemodynamic forces and other signaling pathways during heart regeneration.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping