Targeted Delivery of Diphtheria Toxin into VEGFR1/VEGFR2 Overexpressing Cells Induces Anti-angiogenesis Activity.
Curr Protein Pept Sci
; 25(7): 567-576, 2024.
Article
in En
| MEDLINE
| ID: mdl-39044556
ABSTRACT
BACKGROUND:
Vascular Endothelial Growth Factor Receptors (VEGFR1 and VEGFR2) are tyrosine kinase receptors expressed on endothelial cells and tumor vessels and play an important role in angiogenesis. In this study, three repeats of VEGFR1 and VEGFR2 binding peptide (VGB3) were genetically fused to the truncated diphtheria toxin (TDT), and its in vitro activity was evaluated.METHODS:
The recombinant construct (TDT-triVGB3) was expressed in bacteria cells and purified with nickel affinity chromatography. The binding capacity and affinity of TDT-triVGB3 were evaluated using the enzyme-linked immunosorbent assay. The inhibitory activity of TDT-triVGB3 on viability, migration, and tube formation of human endothelial cells was evaluated using MTT, migration, and tube formation assays.RESULTS:
TDT-triVGB3 selectively detected VEGFR1 and VEGFR2 with high affinity in an enzyme- linked immunosorbent assay and significantly inhibited viability, migration, and tube formation of human endothelial cells.CONCLUSION:
The developed TDT-triVGB3 is potentially a novel agent for targeting VEGFR1/ VEGFR2 over-expressing cancer cells.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cell Movement
/
Angiogenesis Inhibitors
/
Vascular Endothelial Growth Factor Receptor-1
/
Vascular Endothelial Growth Factor Receptor-2
/
Diphtheria Toxin
/
Human Umbilical Vein Endothelial Cells
Limits:
Humans
Language:
En
Journal:
Curr Protein Pept Sci
Journal subject:
BIOQUIMICA
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: