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Development of a nanoliposomal formulation of erlotinib for lung cancer and in vitro/in vivo antitumoral evaluation

Authors Zhou X, Tao H, Shi KH

Received 21 July 2017

Accepted for publication 18 October 2017

Published 18 December 2017 Volume 2018:12 Pages 1—8


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Anastasios Lymperopoulos

Xiao Zhou, Hui Tao, Kai-Hu Shi

Department of Cardiothoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, People’s Republic of China

Abstract: The aim of this study was to develop PEGylation liposomes formulations of erlotinib and evaluate their characteristics, stability, and release characteristics. The average particle sizes and entrapment efficiency of PEGylation erlotinib liposomes are 102.4±3.1 nm and 85.3%±1.8%, respectively. Transmission electron microscopy images showed that the liposomes dispersed well with a uniform shape and no changes during the storage. The in vitro drug-release kinetic model of erlotinib release from the PEGylation liposomes in phosphate-buffered saline fit well with the Higuchi equation. In vitro anticancer activity assay showed that the blank liposomes had lower cellular cytotoxicity and that the cellular cytotoxicity of erlotinib liposomes increased significantly under the same incubation condition, which should contribute to the increase in intracellular drug concentration by the transportation of liposomes. The two liposomes of erlotinib (with and without PEGylation) exhibited similar cellular cytotoxicity with no significantly different concentrations. Pharmacokinetic results indicated that erlotinib-loaded PEGylation liposomes can significantly change the pharmacokinetic behavior of drugs and improve the drug bioavailability by nearly 2 times compared to ordinary liposomes. No sign of damages such as the appearance of epithelial necrosis or sloughing of epithelial cells was detected in histological studies.

Keywords: cellular cytotoxicity, drug-release, erlotinib, PEGylation liposomes, pharmacokinetic

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