Microvascular endothelial cells (ECs) are increasingly recognized as organ-specific gatekeepers of their microenvironment. Microvascular ECs instruct neighboring cells in their organ-specific vascular niches through angiocrine factors, which include secreted growth factors (angiokines), extracellular matrix molecules, and transmembrane proteins. However, the molecular regulators that drive organ-specific microvascular transcriptional programs and thereby regulate angiodiversity are largely elusive. In contrast to other ECs, which form a continuous cell layer, liver sinusoidal ECs (LSECs) constitute discontinuous, permeable microvessels. Here, we have shown that the transcription factor GATA4 controls murine LSEC specification and function. LSEC-restricted deletion of
Cyrill Géraud, Philipp-Sebastian Koch, Johanna Zierow, Kay Klapproth, Katrin Busch, Victor Olsavszky, Thomas Leibing, Alexandra Demory, Friederike Ulbrich, Miriam Diett, Sandhya Singh, Carsten Sticht, Katja Breitkopf-Heinlein, Karsten Richter, Sanna-Maria Karppinen, Taina Pihlajaniemi, Bernd Arnold, Hans-Reimer Rodewald, Hellmut G. Augustin, Kai Schledzewski, Sergij Goerdt
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