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- W2800787815 abstract "Dermatological diseases, including most skin cancers and rare genetic conditions frequently originate in the epidermis. Targeted, topical cell-based therapy is a promising therapeutic strategy. Here, we present the first report demonstrating that fractional laser ablation enables local 'needle-free' intraepidermal delivery of living human cells.The cells penetrated porcine ear skin via microchannels created by Er:YAG fractional laser ablation; cell delivery was quantified using a haemocytometer. Cutaneous distribution was confirmed visually by laser scanning confocal microscopy and histological analysis.Total cell delivery (sum of amounts permeated and deposited) after 24 h increased from 5.7 ± 0.1 x105 to 9.6 ± 1.6 x105 cells/cm2 when increasing pore density from 300 to 600 pores/cm2, - corresponding to 19- and 32-fold increases over the control. At 600 pores/cm2, cell deposition was 136-fold greater than cell permeation - the latter most likely due to transport from micropores into appendageal pathways. Production of GFP post-delivery confirmed cell remained viability.The results demonstrate the feasibility of using controlled laser microporation to achieve local 'needle-free' cutaneous delivery of living human cells to the epidermis and dermis. This raises the possibility of using this technique for targeted new approaches for dermatological therapy in these regions." @default.
- W2800787815 created "2018-05-17" @default.
- W2800787815 creator A5007160480 @default.
- W2800787815 creator A5048394953 @default.
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- W2800787815 date "2018-05-23" @default.
- W2800787815 modified "2023-10-07" @default.
- W2800787815 title "Needle-free cutaneous delivery of living human cells by Er:YAG fractional laser ablation" @default.
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- W2800787815 doi "https://doi.org/10.1080/17425247.2018.1472570" @default.
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