ArticleProceedings of the National Academy of Sciences of the United States of America2026
Hypoxia-mediated epicardial signaling coordinates coronary angiogenesis and myocardial expansion during zebrafish ventricle maturation.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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16 authors.
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Abstract
During cardiac development, the myocardium expands in response to physiological demands to achieve proper cardiac morphology and functional contractility, while simultaneously integrating with the developing coronary vasculature. However, the mechanisms governing this ordered expansion remain poorly understood. Here, we found that regional hypoxia drives local tissue thickening, which in turn exacerbates a hypoxic microenvironment. We demonstrate that epicardial hypoxia serves as a central regulatory mechanism, coordinating both coronary angiogenesis and myocardial expansion during juvenile zebrafish heart development. This mechanism activates discrete spatial patterns of epicardial gene expression, including
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