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Chinese Journal of Polymer Science

, Volume 37, Issue 2, pp 129–135 | Cite as

Multifunctional Cholesterol-modified Dendrimers for Targeted Drug Delivery to Cancer Cells Expressing Folate Receptors

  • Fan-Fan Fu
  • Ben-Qing Zhou
  • Zhi-Jun Ouyang
  • Yi-Lun Wu
  • Jing-Yi Zhu
  • Ming-Wu ShenEmail author
  • Jin-Dong XiaEmail author
  • Xiang-Yang ShiEmail author
Article
  • 58 Downloads

Abstract

We present here the development of cholesterol (Chol)-modified dendrimer system for targeted chemotherapy of folate (FA) receptor-expressing cancer cells. In our study, poly(amidoamine) (PAMAM) dendrimers of generation 5 (G5) were functionalized step-by-step with Chol, fluorescein isothiocyanate (FI), and FA via a poly(ethylene glycol) (PEG) spacer (PEG-FA), and then acetamide to shield their remaining surface amines. The synthesized G5.NHAc-Chol-FI-PEG-FA (for short, G5-CFPF) dendrimers were utilized to encapsulate 10-hydroxycamptothecin (HCP), a hydrophobic anticancer drug. We find that each G5-CFPF dendrimer can encapsulate 13.8 HCP molecules. The complexes show a slower release profiles of HCP in a pH-dependent manner than the control complexes formed using the same dendrimers without Chol under the same conditions. Thanks to the targeting role played by FA, the complexes display a specific inhibition efficacy to FA receptor-expressing cervical cancer cells. The designed Chol-modified dendrimers may be adopted as a promising carrier for application in targeted cancer therapy.

Keywords

PAMAM dendrimers Folate Cholesterol 10-Hydroxycamptothecin Targeted cancer therapy 

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Notes

Acknowledgments

This work was financially supported by the Fundamental Research Funds for the Central Universities (for M. Shen and X. Shi), the National Natural Science Foundation of China (Nos. 81761148028 and 21773026), and the Science and Technology Commission of Shanghai Municipality (Nos. 15520711400 and 17540712000).

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10118_2019_2172_MOESM1_ESM.pdf (1.3 mb)
Multifunctional Cholesterol-Modified Dendrimers for Targeted Drug Delivery to Cancer Cells Expressing Folate Receptors

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Copyright information

© Chinese Chemical Society, Institute of Chemistry, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and BiotechnologyDonghua UniversityShanghaiChina
  2. 2.Department of RadiologyShanghai Songjiang District Central HospitalShanghaiChina

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