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A Novel Recombinant Basic Fibroblast Growth Factor and Its Secretion

 Young-Doug Sohn  ;  Hyun Joung Lim  ;  Ki-Chul Hwang  ;  Jun Hye Kwon  ;  Hyun-Young Park  ;  Kwang-Hoe Chung  ;  Seung Yun Cho  ;  Yangsoo Jang 
 Biochemical and Biophysical Research Communications, Vol.284(4) : 931-936, 2001 
Journal Title
 Biochemical and Biophysical Research Communications 
Issue Date
Basic fibroblast growth factor (FGF-2) is a pleiotropic mitogen which plays an important role in cell growth, differentiation, migration, and survival in different cells and organ systems. Recently, several clinical applications for FGF-2 gene transfer are being evaluated in wound healing and collateral artery development to relieve myocardial and peripheral ischemia due to the ability of FGF-2 to regulate the growth and function of vascular cells. However, FGF-2 lacks a classical hydrophobic secretion signal peptide, the FGF-2 chimeras containing various signal sequences have been explored. In this study, a novel recombinant 4sFGF-2 was constructed by replacing nine residues from the amino-terminus of native FGF-2 (Met1 to Leu9) with eight amino acid residues of signal peptide of FGF-4 (Met1 to Ala8) to better increase the secretion level of FGF-2. When the recombinant FGF-2 gene, cloned into the expression vector with CMV promoter, was expressed in COS-7 cells, the recombinant 4sFGF-2 was highly secreted into the media. The secreted 4sFGF-2 showed the same biological activity as the native FGF-2 in the dose-response effects on DNA synthesis and cell growth of rat aortic smooth muscle cells (RASMCs) and NIH3T3 cells. The 4sFGF-2 also was able to activate MAPK as wild FGF-2 in RASMCs. These results indicate that a novel recombinant 4sFGF-2 may be useful as clinical applicability of angiogenic growth factor gene transfer.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > BioMedical Science Institute (의생명과학부)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
장양수(Jang, Yang Soo) ORCID logo https://orcid.org/0000-0002-2169-3112
황기철(Hwang, Ki Chul)
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