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Folic acid-conjugated cationic Ag2S quantum dots for optical imaging and selective doxorubicin delivery to HeLa cells

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Erkısa, Merve
Arı, Ferda

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Duman, Fatma Demir
Khodadust, Rouhullah
Ulukaya, Engin
Acar, Havva Yağcı

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Future Medicine

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Abstract

We aim to develop folic acid ( FA)-conjugated cationic Ag2S near-infrared quantum dots (NIRQDs) for the delivery of doxorubicin (DOX) selectively to folate receptor (FR)-positive cancer cells to achieve enhanced drug efficacy and optical tracking in the NIR region. Materials & methods: Cationic Ag2S NIRQDs were decorated with FA using a PEG bridge and loaded with DOX. In vitro studies were performed on FR-positive human cervical carcinoma cells and FR-negative A549 cells. Results: Significantly higher uptake of DOX by human cervical carcinoma cells cells and a greater therapeutic effect along with a strong intracellular optical signal were obtained with DOX-loaded FA-conjugated Ag2S NIRQDs. Conclusion: These Ag2S NIRQDs are promising theranostic nanoparticles for receptor-mediated delivery of DOX with enhanced drug efficacy combined with optical imaging.

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Biotechnology & applied microbiology, Science & technology - other topics, Ag2S quantum dots, Cancer therapy, Doxorubicin, Near-infrared imaging;, Targeting, Drug-deliveryhig, Hly luminescent, Cytotoxicity, Folate, Cardiotoxicity, Nanoparticles, Apoptosis, Assay, Tool

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Duman, F. D. vd. (2017). ''Folic acid-conjugated cationic Ag2S quantum dots for optical imaging and selective doxorubicin delivery to HeLa cells''. Nanomedicine, 12(19), 2319-2333.

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