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Analysis demonstrates specific gene regulatory networks influenced by MEF2C during heart formation.
Heart formation depends on the finely tuned activity of transcriptional regulators, yet the networks they control are only now being defined. In this issue of Genes & Development , Muncie-Vasik and colleagues (doi:10.1101/gad.352889.125) analyzed the role of MEF2C, which is a key driver of heart formation. By characterizing MEF2C's temporal effects on mRNA profiles and chromatin structure, the investigators computationally reconstructed downstream gene regulatory networks, which turned out to be remarkably specific for the different heart tube segments that form the inflow tract, chambers, and outflow tract. The results comprise an extremely fine-grained view of the network logic of heart formation.
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Abdulrazzak et al. (2025) studied this question.
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