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Erythrocyte membrane-camouflaged gefitinib/albumin nanoparticles for tumor imaging and targeted therapy against lung cancer.

Authors
  • Wen, Qian1
  • Zhang, Yan2
  • Muluh, Tobias Achu3
  • Xiong, Kang3
  • Wang, BiQiong3
  • Lu, Yun3
  • Wu, ZhouXue3
  • Liu, YanLin3
  • Shi, Huan3
  • Xiao, SuSu3
  • Fu, ShaoZhi4
  • 1 Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Oncology, the Second Peoples' Hospital of Yibin, Yibin 644000, China. , (China)
  • 2 Department of Oncology, the Affiliated TCM Hospital of Southwest Medical University, Luzhou 646000, China. , (China)
  • 3 Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China. , (China)
  • 4 Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou 646000, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
International journal of biological macromolecules
Publication Date
Oct 22, 2021
Volume
193
Issue
Pt A
Pages
228–237
Identifiers
DOI: 10.1016/j.ijbiomac.2021.10.113
PMID: 34688683
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Conventional chemotherapeutic drugs may cause serious side effects such as hepatotoxicity and renal toxicity due to lack of targeting, which affects therapy outcome and the prognosis of patients. Therefore, biomimetic nanoparticles with long blood circulation and active targeting have attracted increasing attention. In this work, we fabricated a biomimetic [email protected] nano-system by encapsulating gefitinib-loaded albumin nanoparticles (GEF-NPs) inside cRGD-modified red blood cell (RBC) membranes. The complete RBC membrane structure and membrane proteins enabled the NPs to escape phagocytosis by macrophages. In addition, the cRGD moiety significantly improved tumor cell targeting and uptake. [email protected] inhibited the growth of A549 cells in vitro in a dose- and time-dependent manner by inducing apoptosis and cell cycle arrest at the G1 phase. Likewise, the [email protected] also decreased tumor weight and volume in the mice injected with A549 cells and prolonged survival time. In addition, the 99Tc-labeled [email protected] selectively accumulated in the tumor tissues in vivo, and enabled real time tumor imaging. Finally, blood and histological analyses showed that [email protected] did not cause any obvious systemic toxicity. Taken together, the biomimetic [email protected] is a promising therapeutic formulation for the treatment of lung cancer. Copyright © 2021. Published by Elsevier B.V.

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