Biomechanical signaling within the developing zebrafish heart attunes endocardial growth to myocardial chamber dimensions

D. Bornhorst, P. Xia, H. Nakajima, C. Dingare, W. Herzog, V. Lecaudey, N. Mochizuki, C.-P.J. Heisenberg, D. Yelon, S. Abdelilah-Seyfried, Nature Communications 10 (2019) 4113.

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Journal Article | Published | English
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Abstract
Intra-organ communication guides morphogenetic processes that are essential for an organ to carry out complex physiological functions. In the heart, the growth of the myocardium is tightly coupled to that of the endocardium, a specialized endothelial tissue that lines its interior. Several molecular pathways have been implicated in the communication between these tissues including secreted factors, components of the extracellular matrix, or proteins involved in cell-cell communication. Yet, it is unknown how the growth of the endocardium is coordinated with that of the myocardium. Here, we show that an increased expansion of the myocardial atrial chamber volume generates higher junctional forces within endocardial cells. This leads to biomechanical signaling involving VE-cadherin, triggering nuclear localization of the Hippo pathway transcriptional regulator Yap1 and endocardial proliferation. Our work suggests that the growth of the endocardium results from myocardial chamber volume expansion and ends when the tension on the tissue is relaxed.
Publishing Year
Date Published
2019-09-11
Journal Title
Nature communications
Volume
10
Issue
1
Page
4113
eISSN
IST-REx-ID

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Bornhorst D, Xia P, Nakajima H, et al. Biomechanical signaling within the developing zebrafish heart attunes endocardial growth to myocardial chamber dimensions. Nature communications. 2019;10(1):4113. doi:10.1038/s41467-019-12068-x
Bornhorst, D., Xia, P., Nakajima, H., Dingare, C., Herzog, W., Lecaudey, V., … Abdelilah-Seyfried, S. (2019). Biomechanical signaling within the developing zebrafish heart attunes endocardial growth to myocardial chamber dimensions. Nature Communications, 10(1), 4113. https://doi.org/10.1038/s41467-019-12068-x
Bornhorst, Dorothee, Peng Xia, Hiroyuki Nakajima, Chaitanya Dingare, Wiebke Herzog, Virginie Lecaudey, Naoki Mochizuki, Carl-Philipp J Heisenberg, Deborah Yelon, and Salim Abdelilah-Seyfried. “Biomechanical Signaling within the Developing Zebrafish Heart Attunes Endocardial Growth to Myocardial Chamber Dimensions.” Nature Communications 10, no. 1 (2019): 4113. https://doi.org/10.1038/s41467-019-12068-x.
D. Bornhorst et al., “Biomechanical signaling within the developing zebrafish heart attunes endocardial growth to myocardial chamber dimensions,” Nature communications, vol. 10, no. 1, p. 4113, 2019.
Bornhorst D, Xia P, Nakajima H, Dingare C, Herzog W, Lecaudey V, Mochizuki N, Heisenberg C-PJ, Yelon D, Abdelilah-Seyfried S. 2019. Biomechanical signaling within the developing zebrafish heart attunes endocardial growth to myocardial chamber dimensions. Nature communications. 10(1), 4113.
Bornhorst, Dorothee, et al. “Biomechanical Signaling within the Developing Zebrafish Heart Attunes Endocardial Growth to Myocardial Chamber Dimensions.” Nature Communications, vol. 10, no. 1, Nature Publishing Group, 2019, p. 4113, doi:10.1038/s41467-019-12068-x.
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