Mannoproteins from Saccharomyces cerevisiae stimulate angiogenesis by promoting the akt-eNOS signaling pathway in endothelial cells

Bo Hyun Yoon, Seung Min Lee, Hyo-Ihl Chang, Chang Hoon Ha

Research output: Contribution to journalArticle


Mannoproteins (MPs) are a major component of yeast cell walls and consist of high levels of mannose in covalent complexes with proteins. MPs complexly enhance the immune system. We previously isolated a mutant yeast, K48L3, with a higher yield of MP from its cell wall than wild-type Saccharomyces cerevisiae, YPH499. We determined that K48L3 induces the release of nitric oxide in macrophage cells. The present study reports nitric-oxide-mediated angiogenesis by MP from K48L3 and the induction of the Akt/eNOS signal pathway. Western blotting and RT-PCR were used to demonstrate that MP treatment resulted in the upregulation of p-Akt, p-eNOS, and angiogenesis-mediated gene expression. Moreover, the angiogenesis activity of the MPs was demonstrated using three angiogenesis assays, namely, a cell migration assay, a tube-forming assay, and an ex vivo aorta ring assay. Thus, this study demonstrates for the first time that MPs from S. cerevisiae K48L3 induce angiogenesis in HUVECs via the Akt-eNOS-dependent signaling pathway.

Original languageEnglish
JournalBiochemical and biophysical research communications
Publication statusAccepted/In press - 2019 Jan 1



  • Angiogenesis
  • Endothelial cell
  • Mannoprotein
  • Yeast cell wall

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this