

FOLLOWUS
a.Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
b.Department of Radiology, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
mwshen@dhu.edu.cn (M.W.S.)
xiajd_21@163.com (J.D.X.)
xshi@dhu.edu.cn (X.Y.S.)
Received:29 July 2018,
Revised:2018-9-14,
Accepted:18 September 2018,
Online First:22 October 2018,
Published:2019-02
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Citation: Fu, F. F.; Zhou, B. Q.; Ouyang, Z. J.; Wu, Y. L.; Zhu, J. Y.; Shen, M. W.; Xia, J. D.; Shi, X. Y. Multifunctional cholesterol-modified dendrimers for targeted drug delivery to cancer cells expressing folate receptors. Chinese J. Polym. Sci. 2019, 37, 129–135
Fan-Fan Fu, Ben-Qing Zhou, Zhi-Jun Ouyang, et al. Multifunctional Cholesterol-modified Dendrimers for Targeted Drug Delivery to Cancer Cells Expressing Folate Receptors[J]. Chinese Journal of Polymer Science, 2019, 37(2): 129-135.
Citation: Fu, F. F.; Zhou, B. Q.; Ouyang, Z. J.; Wu, Y. L.; Zhu, J. Y.; Shen, M. W.; Xia, J. D.; Shi, X. Y. Multifunctional cholesterol-modified dendrimers for targeted drug delivery to cancer cells expressing folate receptors. Chinese J. Polym. Sci. 2019, 37, 129–135 DOI: 10.1007/s10118-019-2172-9.
Fan-Fan Fu, Ben-Qing Zhou, Zhi-Jun Ouyang, et al. Multifunctional Cholesterol-modified Dendrimers for Targeted Drug Delivery to Cancer Cells Expressing Folate Receptors[J]. Chinese Journal of Polymer Science, 2019, 37(2): 129-135. DOI: 10.1007/s10118-019-2172-9.
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.
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