VEGF stimulates HDAC7 phosphorylation and cytoplasmic accumulation modulating matrix metalloproteinase expression and angiogenesis

Hoon Ha Chang, Sook Jhun Bong, Hung Ying Kao, Zheng Gen Jin

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)

Abstract

Objective - Histone acetylation/deacetylation plays an important role in the control of gene expression, tissue growth, and development. In particular, histone deacetylases 7 (HDAC7), a member of class IIa HDACs, is crucial in maintaining vascular integrity. However, whether HDAC7 is involved in the processes of vascular endothelial signaling and angiogenesis remains unclear. Here, we investigated the role of HDAC7 in vascular endothelial growth factor (VEGF) signaling and angiogenesis. Methods and Results - We show for the first time that VEGF stimulated phosphorylation of HDAC7 at the sites of Ser178, Ser344, and Ser479 in a dose- and time-dependent manner, which leads to the cytoplasmic accumulation of HDAC7. Using pharmacological inhibitors, siRNA, and adenoviruses carrying dominant-negative mutants, we found that phospholipase Cγ/protein kinase C/protein kinase D1 (PKD1)-dependent signal pathway mediated HDAC7 phosphorylation and cytoplasmic accumulation by VEGF. Infection of ECs with adenoviruses encoding a mutant of HDAC7 specifically deficient in PKD1-dependent phosphorylation inhibited VEGF-induced angiogenic gene expression, including matrix metalloproteinases MT1-matrix metalloproteinase (MMP) and MMP10. Moreover, HDAC7 and its targeting genes were involved in VEGF-stimulated endothelial cell migration, tube formation, and microvessel sprouting. Conclusions - Our results demonstrate that VEGF stimulates PKD1-dependent HDAC7 phosphorylation and cytoplasmic accumulation in endothelial cells modulating gene expression and angiogenesis.

Original languageEnglish
Pages (from-to)1782-1788
Number of pages7
JournalArteriosclerosis, thrombosis, and vascular biology
Volume28
Issue number10
DOIs
Publication statusPublished - 2008 Oct

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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