Dual chemotactic factors-secreting human amniotic mesenchymal stem cells via TALEN-mediated gene editing enhanced angiogenesis.

Abstract

BACKGROUND:

Even though mesenchymal stem cells (MSCs) have angiogenic property, their cytokine secretory capacity is limited to treat ischemic vascular disorders. In present study, we produced genome-edited MSCs that secreted dual chemokine granulocyte chemotactic protein-2 (GCP-2) and stromal-derived factor-1α (SDF-1α) and determined their therapeutic potential in the context of experimental ischemia.

METHODS:

GCP-2 and SDF-1α genes were integrated into safe harbor site at the safe harbor genomic locus of amniotic mesenchymal stem cells (AMM) via transcription activator-like effector nucleases (TALEN). GCP-2 and SDF-1α gene-edited AMM (AMM/GS) were used for quantitative (q)-PCR, Matrigel tube formation, cell migration, Matrigel plug assays and in vivo therapeutic assays using hindlimb ischemia mouse model.

RESULTS:

AMM/GS-derived culture media (CM) induced significantly higher tube lengths and branching points as compared to AMM/S CM and AMM CM. Interestingly, Matrigel plug assays revealed that significantly higher levels of red blood cells were found in AMM/GS than AMM/S and AMM Matigel plugs and exhibited micro-vascular like formation. Cells was transplanted into ischemic mouse hindlimbs and compared with control groups. AMM/GS injection prevented limb loss and augmented blood perfusion, suggesting that enhances neovascularization in hindlimb ischemia. In addition, transplanted AMM/GS revealed high vasculogenic potential in vivo compared with transplanted AMM/S.

CONCLUSION:

Taken together, genome-edited MSCs that express dual chemokine GCP-2 and SDF-1α might be alternative therapeutic options for the treatment of ischemic vascular disease.

• Authors: In Sil Jeong, Youngjin Park, Hyun Aae Ryu, Hyun Sook An, Ju Hye Han, Sung-Whan Kim
• Journal: International journal of cardiology (Int J Cardiol) Vol. 260 Pg. 156-162 (06 01 2018) ISSN: 1874-1754 [Electronic] Netherlands
• PMID: 29506937 (Publication Type: Journal Article)
• Copyright: Copyright © 2018 Elsevier B.V. All rights reserved.

Chemical References

• Transcription Activator-Like Effector Nucleases

Topics

• Amnion (cytology, physiology)
• Animals
• Chemotaxis (physiology)
• Gene Editing (methods)
• Human Umbilical Vein Endothelial Cells (physiology)
• Humans
• Ischemia (pathology, therapy)
• Male
• Mesenchymal Stem Cell Transplantation (methods)
• Mesenchymal Stem Cells (metabolism, physiology)
• Mice
• Mice, Nude
• Neovascularization, Physiologic (physiology)
• Transcription Activator-Like Effector Nucleases (physiology)