Laser-Induced Forward Transfer Printing on Microneedles for Transdermal Delivery of Gemcitabine

Zoi Kanaki, Chrysoula Chandrinou, Ioanna-Maria Orfanou, Christina Kryou, Jill Ziesmer, Georgios A. Sotiriou, Apostolos Klinakis, Constantin Tamvakopoulos, Ioanna Zergioti

Article ID: 554
Vol 8, Issue 2, 2022, Article identifier:

VIEWS - 658 (Abstract) 254 (PDF)



Cancer treatment with chemotherapeutic drugs remains to be challenging to the physician due to limitations associated with lack of efficacy or high toxicities. Typically, chemotherapeutic drugs are administered intravenously, leading to high drug concentrations that drive efficacy but also lead to known side effects. Delivery of drugs through transdermal microneedles (MNs) has become an important alternative treatment approach. Such delivery options are well suited for chemotherapeutic drugs in which sustained levels would be desirable. In the context of developing a novel approach, laser induced forward transfer (LIFT) was applied for bioprinting of gemcitabine (Gem) to coat polymethylmethacrylate MNs. Gem, a chemotherapeutic agent used to treat various types of cancer, is a good candidate for MN-assisted transdermal delivery to improve the pharmacokinetics of Gem while reducing efficiency limitations. LIFT bioprinting of Gem for coating of MNs with different drug amounts and successful transdermal delivery in mice is presented in this study. Our approach produced reproducible, accurate, and uniform coatings of the drug on MN arrays, and on in vivo transdermal application of the coated MNs in mice, dose-proportional concentrations of Gem in the plasma of mice was achieved. The developed approach may be extended to several chemotherapeutics and provide advantages for metronomic drug dosing.


Laser-induced forward transfer bioprinting, Microneedles, Metronomic chemotherapy, Pharmacokinetics, Transdermal dosing, Sustained drug release

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