2022
DOI: 10.3390/nano12224013
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Targeting Ultrasmall Gold Nanoparticles with cRGD Peptide Increases the Uptake and Efficacy of Cytotoxic Payload

Abstract: Cyclic arginyl-glycyl-aspartic acid peptide (cRGD) peptides show a high affinity towards αVβ3 integrin, a receptor overexpressed in many cancers. We aimed to combine the versatility of ultrasmall gold nanoparticles (usGNP) with the target selectivity of cRGD peptide for the directed delivery of a cytotoxic payload in a novel design. usGNPs were synthesized with a modified Brust-Schiffrin method and functionalized via amide coupling and ligand exchange and their uptake, intracellular trafficking, and toxicity w… Show more

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Cited by 6 publications
(5 citation statements)
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“…Taken together, our findings suggest that Bm-GNPs merit further scientific exploration at molecular and preclinical levels. To enhance their target specificity, conjugating them with target-specific antibodies 60 or peptides 61 can be explored.…”
Section: Discussionmentioning
confidence: 99%
“…Taken together, our findings suggest that Bm-GNPs merit further scientific exploration at molecular and preclinical levels. To enhance their target specificity, conjugating them with target-specific antibodies 60 or peptides 61 can be explored.…”
Section: Discussionmentioning
confidence: 99%
“…Another common decoration method is via thiol-containing biomolecules which can form covalent bonds with AuNPs via their thiol groups [ 47 ]. This method is highly specific and efficient and results in stable conjugates.…”
Section: Synthesis and Bioconjugation Of Gold Nanoparticlesmentioning
confidence: 99%
“…More recently, D. Perrins et al functionalized ultrasmall gold nanoparticles with the cRGD peptide, which binds to the α V β 3 integrin receptor, which is overexpressed in many tumors such as melanoma [ 76 , 206 ]. Moreover, cRGD-ultrasmall GNPs loaded with the maytansinoid drug (DM1), a tubulin polymerization inhibitor, showed increased cytotoxicity selectively on cells that expressed the α V β 3 integrin [ 207 , 208 ].…”
Section: Peptide-based Targeting Strategies For Drug Delivery Systemsmentioning
confidence: 99%