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Π electron-stabilized polymeric micelles potentiate docetaxel therapy in advanced-stage gastrointestinal cancer

  • Chenghua Liang
  • , Xiangyang Bai
  • , Cuiling Qi
  • , Qingxue Sun
  • , Xiaoyan Han
  • , Tianyun Lan
  • , Haibo Zhang
  • , Xiaoming Zheng
  • , Rongpu Liang
  • , Ju Jiao
  • , Zongheng Zheng
  • , Jiafeng Fang
  • , Purun Lei
  • , Yan Wang
  • , Diana Möckel
  • , Josbert M. Metselaar
  • , Gert Storm
  • , Wim E. Hennink
  • , Fabian Kiessling
  • , Hongbo Wei*
  • Twan Lammers, Yang Shi, Bo Wei
*Corresponding author for this work
  • Sun Yat-Sen University
  • RWTH Aachen University
  • Guangdong Pharmaceutical University
  • Fraunhofer Institute for Digital Medicine

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Gastrointestinal (GI) cancers are among the most lethal malignancies. The treatment of advanced-stage GI cancer involves standard chemotherapeutic drugs, such as docetaxel, as well as targeted therapeutics and immunomodulatory agents, all of which are only moderately effective. We here show that Π electron-stabilized polymeric micelles based on PEG-b-p(HPMAm-Bz) can be loaded highly efficiently with docetaxel (loading capacity up to 23 wt%) and potentiate chemotherapy responses in multiple advanced-stage GI cancer mouse models. Complete cures and full tumor regression were achieved upon intravenously administering micellar docetaxel in subcutaneous gastric cancer cell line-derived xenografts (CDX), as well as in CDX models with intraperitoneal and lung metastases. Nanoformulated docetaxel also outperformed conventional docetaxel in a patient-derived xenograft (PDX) model, doubling the extent of tumor growth inhibition. Furthermore, micellar docetaxel modulated the tumor immune microenvironment in CDX and PDX tumors, increasing the ratio between M1-and M2-like macrophages, and toxicologically, it was found to be very well-tolerated. These findings demonstrate that Π electron-stabilized polymeric micelles loaded with docetaxel hold significant potential for the treatment of advanced-stage GI cancers.

Original languageEnglish
Article number120432
Number of pages10
JournalBiomaterials
Volume266
DOIs
Publication statusPublished - Jan 2021

Bibliographical note

Funding Information:
This work was supported by grants from Science and Technology Planning Project of Guangdong Province ( 2017B020227009 and 2017A010103009 ), by Fundamental Research Funds for the Central Universities ( 16ykjc23 ), by the National Natural Science Foundation of China ( 81472825 and 81773095 ), by the Outstanding Young Talents Support Program of the Third Affiliated Hospital of Sun Yat-sen University , by the China Scholarship Council ( CSC ), by the European Research Council (ERC: Consolidator Grant Meta-Targeting ( 864121 ) and Proof-of-Concept Grant PIcelles ( 813086 )), by German Research Foundation ( DFG : GRK/RTG 2375: Tumor-targeted Drug Delivery (project number 331065168 )), and by the Aachen Interdisciplinary Center for Clinical Research (IZKF; Project O3-2).

Publisher Copyright:
© 2020 Elsevier Ltd

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Funding

This work was supported by grants from Science and Technology Planning Project of Guangdong Province ( 2017B020227009 and 2017A010103009 ), by Fundamental Research Funds for the Central Universities ( 16ykjc23 ), by the National Natural Science Foundation of China ( 81472825 and 81773095 ), by the Outstanding Young Talents Support Program of the Third Affiliated Hospital of Sun Yat-sen University , by the China Scholarship Council ( CSC ), by the European Research Council (ERC: Consolidator Grant Meta-Targeting ( 864121 ) and Proof-of-Concept Grant PIcelles ( 813086 )), by German Research Foundation ( DFG : GRK/RTG 2375: Tumor-targeted Drug Delivery (project number 331065168 )), and by the Aachen Interdisciplinary Center for Clinical Research (IZKF; Project O3-2).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Gastrointestinal cancer
  • Nanomedicine
  • Polymeric micelles
  • Taxane therapy
  • Tumor microenvironment
  • Tumor targeting

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