Abstract
Herein, we report for the first time the design and synthesis of a novel cyclotide able to efficiently inhibit HIV-1 viral replication by selectively targeting cytokine receptor CXCR4. This was accomplished by grafting a series of topologically modified CVX15 based peptides onto the loop 6 of cyclotide MCoTI-I. The most active compound produced in this study was a potent CXCR4 antagonist (EC50 ≈ 20 nM) and an efficient HIV-1 cell-entry blocker (EC50 ≈ 2 nM). This cyclotide also showed high stability in human serum, thereby providing a promising lead compound for the design of a novel type of peptide-based anticancer and anti-HIV-1 therapeutics.
Original language | English (US) |
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Pages (from-to) | 10729-10734 |
Number of pages | 6 |
Journal | Journal of medicinal chemistry |
Volume | 55 |
Issue number | 23 |
DOIs | |
State | Published - Dec 13 2012 |
Externally published | Yes |