CREG1 promotes angiogenesis and neovascularization

Chenghui Yan, Fang Pu, Huimin Zhang, Jie Tao, Xiaoxiang Tian, Yang Li, Jian Zhang, Mingyu Sun, Shaohua Li, Hong Wang, Yaling Han

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Angiogenesis has long been considered as an important strategy for ischemic injury. It has been reported that cellular repressor of E1A-stimulated genes (CREG1) promotes human umbilical vein endothelial cell (HUVEC) proliferation, migration, and protects endothelial cell (EC) from apoptosis. However, its potential effect on angiogenesis remains undefined. In the present study, we investigated the role and mechanisms of CREG1 in promoting angiogenesis. We found that adenovirus-transduced CREG1 expression in HUVECs increases EC tube formation in matrigel and promotes neovascularization in matrigel plugs grafted into wild type mice. In addition, adenoviral CREG1 expression enhances filopodia formation, which is accompanied by increased expression of integrin-linked kinase (ILK) and activation of its downstream effector Cdc42. Hindlimb perfusion was significantly reduced after femoral artery ligation in CREG1 heterozygous knockout mice. Finally, adenoviral CREG1 was injected intramuscularly in gastrochemius and partially restores ischemic hindlimb perfusion. Our results demonstrated that CREG1 increases EC filopodia formation and vascular assembly via ILK-Cdc42 activation and promotes neovascularization, which might be a therapeutic target for ischemic injury.

Original languageEnglish (US)
Pages (from-to)1151-1161
Number of pages11
JournalFrontiers in Bioscience - Landmark
Volume19
Issue number7
DOIs
StatePublished - Jun 1 2014

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

Keywords

  • Angiogenesis
  • Cellular repressor of E1A-stimulated gene
  • Filopodia ILK Cdc42

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