Zonated Wnt/β-catenin signal-activated cardiomyocytes at the atrioventricular canal promote coronary vessel formation in zebrafish
Cells functioning at a specific zone by clustering according to gene expression are recognized as zonated cells. Here, we demonstrate anatomical and functional zones in the zebrafish heart. The cardiomyocytes (CMs) at the atrioventricular canal between the atrium and ventricle could be grouped into three zones according to the localization of signal-activated CMs: Wnt/β-catenin signal<sup>+</sup>, Bmp signal<sup>+</sup>, and Tbx2b<sup>+</sup> zones. Endocardial endothelial cells (ECs) changed their characteristics, penetrated the Wnt/β-catenin signal<sup>+</sup> CM zone, and became coronary ECs covering the heart. Coronary vessel length was reduced when the Wnt/β-catenin signal<sup>+</sup> CMs were depleted. Collectively, we demonstrate the importance of anatomical and functional zonation of CMs in the zebrafish heart.
Authors
- Manabu Shirai
- Takuya Yamamoto (ORCID: https://orcid.org/0000-0002-0022-3947)
- Moe Fukumoto (ORCID: https://orcid.org/0000-0001-8081-1353)
- Ayano Chiba (ORCID: https://orcid.org/0000-0003-2536-2449)
- Naoki Mochizuki (ORCID: https://orcid.org/0000-0002-3938-9602)
- Hiroyuki Nakajima (ORCID: https://orcid.org/0000-0003-1816-3222)
- Hajime Fukui (ORCID: https://orcid.org/0000-0002-7652-2222)
Institutions
- Yamagata University (JP)
- Kyoto University (JP)
- National Cerebral and Cardiovascular Center (JP)
- Tokushima University (JP)
Publication Details
- Journal
- Developmental Cell
- Published
- 2024-10-11
- DOI
- https://doi.org/10.1016/j.devcel.2024.09.012
- Citations
- 5
- Primary Topic
- Congenital heart defects research
- Type
- article
- Field-Weighted Citation Impact
- 1.17
Funders
- Takeda Science Foundation
- Max Planck Instituut voor Psycholinguïstiek
- Japan Society for the Promotion of Science
- Japan Science and Technology Agency
- Moonshot Research and Development Program