A platform technique for growth factor delivery with novel mode of action

Nam Hee Kim, Yong Hoon Cha, Hyun Sil Kim, Soo Eon Lee, Jong Ki Huh, Jung Kook Kim, Jeong Moon Kim, Joo Kyung Ryu, Hee Jin Kim, Yoonmi Lee, Su Yeon Lee, Insup Noh, Xiao Yan Li, Stephen J. Weiss, Tae Ahn Jahng, Jong In Yook

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Though growth factors allow tissue regeneration, the trade-off between their effectiveness and adverse effects limits clinical application. The key issues in current growth factor therapy largely derive from initial burst pharmacokinetics, rapid clearance, and proteolytic cleavage resulting in clinical ineffectiveness and diverse complications. While a number of studies have focused on the development of carriers, issues arising from soluble growth factor remain. In this study, we report a prodrug of growth factors constituting a novel mode of action (MoA). To mimic endogenous protein processing in cells, we developed a recombinant BMP-2 polypeptide based on a protein transduction domain (PTD) to transduce the protein into cells followed by furin-mediated protein cleavage and secretion of active growth factor. As proof of concept, a few micrograms scale of PTD-BMP-2 polypeptide sufficed to induce bone regeneration invivo. As a simple platform, our technique can easily be extended to delivery of BMP-7 and DKK-1 as therapeutics for TGF-β and canonical Wnt signaling, respectively, to suppress the epithelial-mesenchymal transition (EMT), which constitutes a fundamental biological mechanism of many diseases. This technique largely overcomes the limitations of current soluble growth factors and opens the door to next generation growth factor therapeutics.

Original languageEnglish
Pages (from-to)9888-9896
Number of pages9
Issue number37
Publication statusPublished - 2014 Dec 1

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Ceramics and Composites
  • Bioengineering
  • Biophysics
  • Biomaterials


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