2010年2月
Sinusoid Development and Morphogenesis May Be Stimulated by VEGF-Flk-1 Signaling During Fetal Mouse Liver Development
DEVELOPMENTAL DYNAMICS
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- 巻
- 239
- 号
- 2
- 開始ページ
- 386
- 終了ページ
- 397
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/dvdy.22162
- 出版者・発行元
- WILEY-BLACKWELL
Early morphogenesis of hepatic sinusoids was histochemically and experimentally analyzed, and the importance of VEGF-Flk-1 signaling in the vascular development was examined during murine liver organogenesis. FITC-gelatin injection experiments into young murine fetuses demonstrated that all primitive sinusoidal structures were confluent with portal and central veins, suggesting that hepatic vessel development may occur via angiogenesis. At 12.5-14.5 days of gestation, VEGF receptors designated Flk-1, especially their mature form, were highly expressed in endothelial cells of primitive sinusoidal structures and highly phosphorylated on their tyrosine residues. At the same time, VEGF was also detected in hepatoblasts/hepatocytes, hemopoietic cells, and megakaryocytes of the whole liver parenchyma. Furthermore, the addition of VEGF to E12.5 liver cell cultures significantly induced the growth and branching morphogenesis of sinusoidal endothelial cells. Therefore, VEGF-Flk-1 signaling may play an important role in the growth and morphogenesis of primitive sinusoids during fetal liver development. Developmental Dynamics 239:386-397,2010. (C) 2009 Wiley-Liss, Inc.
- リンク情報
- ID情報
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- DOI : 10.1002/dvdy.22162
- ISSN : 1058-8388
- eISSN : 1097-0177
- Web of Science ID : WOS:000274819300002