PMID- 31475273 OWN - NLM STAT- MEDLINE DCOM- 20200721 LR - 20200721 IS - 2050-7518 (Electronic) IS - 2050-750X (Linking) VI - 7 IP - 37 DP - 2019 Oct 7 TI - Supramolecular micellar drug delivery system based on multi-arm block copolymer for highly effective encapsulation and sustained-release chemotherapy. PG - 5677-5687 LID - 10.1039/c9tb01221d [doi] AB - Poly(phosphoester)-based biomaterials have great potential in drug delivery systems (DDSs) because of their multifunctional adjustability, stealth effect, excellent biodegradability, and biocompatibility. To further increase the drug loading efficiency (DLE) and sustained release ability, a multi-arm block copolymer, poly(amido amine)-b-poly(2-butenyl phospholane)-b-poly(2-methoxy phospholane) conjugated with folic acid (abbreviated as PAMAM-PBEP-PMP-FA), was designed and prepared. Compared to the traditional linear copolymers, this multi-arm phosphoester block copolymer integrates a balanced combination of unique features. As an advanced DDS, the PAMAM-PBEP-PMP-FA based supramolecular micelle provides good architectural stability, low protein adsorption, extremely high DLE, and sustained drug release for chemotherapy and abundant surface chemistry for target engineering. Benefitting from these novel functions, the supramolecular micellar drug delivery system exhibits great performances both in in vitro and in vivo evaluations. Doxorubicin (DOX)-loaded supramolecular micelles PAMAM-PBEP-PMP-FA/DOX are fast taken up by HepG2 cells and inhibit the tumor growth effectively in HepG2-tumor-bearing nude mice without obvious system toxicity. This work not only suggests a targeted sustained release DDS for effective chemotherapy but also enlightens, through a delicate design at the molecular scale, the brilliance of multifunctional PPE-based nanomaterials towards versatile bio-applications. FAU - Zhang, Li AU - Zhang L AD - Key Laboratory of Synthetic and Biological Colloids Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China. mqchen@jiangnan.edu.cn djshi@jiangnan.edu.cn. FAU - Shi, Dongjian AU - Shi D AUID- ORCID: 0000-0003-4477-2929 AD - Key Laboratory of Synthetic and Biological Colloids Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China. mqchen@jiangnan.edu.cn djshi@jiangnan.edu.cn. FAU - Shi, Chunling AU - Shi C AD - School of Chemistry and Chemical Engineering, Xuzhou Institute of Technology, Xuzhou, Jiangsu 221111, China. FAU - Kaneko, Tatsuo AU - Kaneko T AUID- ORCID: 0000-0001-9794-083X AD - Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology (JAIST), Ishikawa, 923-1292, Japan. FAU - Chen, Mingqing AU - Chen M AD - Key Laboratory of Synthetic and Biological Colloids Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China. mqchen@jiangnan.edu.cn djshi@jiangnan.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190902 PL - England TA - J Mater Chem B JT - Journal of materials chemistry. B JID - 101598493 RN - 0 (Delayed-Action Preparations) RN - 0 (Micelles) RN - 0 (Polymers) RN - 80168379AG (Doxorubicin) SB - IM MH - Animals MH - Carcinogenesis/*drug effects MH - Cell Survival MH - Delayed-Action Preparations/*chemistry MH - Doxorubicin/administration & dosage MH - Hep G2 Cells MH - Humans MH - Mice MH - Mice, Nude MH - Micelles MH - Neoplasms/*drug therapy MH - Polymers/chemistry MH - Xenograft Model Antitumor Assays EDAT- 2019/09/03 06:00 MHDA- 2020/07/22 06:00 CRDT- 2019/09/03 06:00 PHST- 2019/09/03 06:00 [pubmed] PHST- 2020/07/22 06:00 [medline] PHST- 2019/09/03 06:00 [entrez] AID - 10.1039/c9tb01221d [doi] PST - ppublish SO - J Mater Chem B. 2019 Oct 7;7(37):5677-5687. doi: 10.1039/c9tb01221d. Epub 2019 Sep 2.