In vivo monitoring of angiogenesis in a mouse hindlimb ischemia model using fluorescent peptide-based probes

Subin Park, Jangwook Lee, Mi hee Jo, Jin Hee Na, Sung Gurl Park, Hyeon Ki Jang, Sun Woong Kang, Jong Ho Kim, Byung Soo Kim, Jae Hyung Park, Ick Chan Kwon, Ju Hee Ryu, Kwangmeyung Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Vascular endothelial growth factor receptor (VEGFR) and matrix metalloproteinase (MMP) are up-regulated in ischemic tissue and play pivotal roles in promoting angiogenesis. The purpose of the present study was to evaluate two fluorophore-conjugated peptide probes specific to VEGFR and MMP for dual-targeted in vivo monitoring of angiogenesis in a murine model of hindlimb ischemia. To this end, VEGFR-Probe and MMP-Probe were developed by conjugating distinct near-infrared fluorophores to VEGFR-binding and MMP substrate peptides, respectively. VEGFR-Probe exhibited specific binding to VEGFR on HUVECs, and self-quenched MMP-Probe produced strong fluorescence intensity in the presence of MMPs in vitro. Subsequently, VEGFR-Probe and MMP-Probe were successfully utilized for time course in vivo visualization of VEGFR or MMP, respectively. Simultaneous visualization provided information regarding the spatial distribution of these proteins, including areas of co-localization. This dual-targeted in vivo imaging approach will be useful for understanding the detailed mechanism of angiogenesis and for evaluating therapeutic angiogenesis.

Original languageEnglish
Pages (from-to)1641-1654
Number of pages14
JournalAmino Acids
Volume48
Issue number7
DOIs
Publication statusPublished - 2016 Jul 1

Keywords

  • Angiogenesis
  • Fluorescence imaging
  • Matrix metalloproteinase
  • Molecular imaging
  • Vascular endothelial growth factor receptor

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry
  • Organic Chemistry

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  • Cite this

    Park, S., Lee, J., Jo, M. H., Na, J. H., Park, S. G., Jang, H. K., Kang, S. W., Kim, J. H., Kim, B. S., Park, J. H., Kwon, I. C., Ryu, J. H., & Kim, K. (2016). In vivo monitoring of angiogenesis in a mouse hindlimb ischemia model using fluorescent peptide-based probes. Amino Acids, 48(7), 1641-1654. https://doi.org/10.1007/s00726-016-2225-0