title: Polysorbate 80 coated poly (ɛ-caprolactone)-poly (ethylene glycol)-poly (ɛ-caprolactone) micelles for paclitaxel delivery.
abstract: In this article, polysorbate 80 coated poly (ɛ-caprolactone)-poly (ethylene glycol)-poly (ɛ-caprolactone) (PCEC) micelles were successfully prepared for paclitaxel (PTX) delivery. The particle size distribution, morphology, drug loading, encapsulation efficiency and sustained release profile of the micelles were studied in detail. The safety of the micelle formulation was evaluated by MTT assay on HEK293 cells. And the encapsulated PTX in the micelles remained potent antitumor effect on C6 glioma cells. The pharmacokinetic study showed that the PCEC micelles coated with polysorbate 80 altered the biodistribution pattern and increased PTX concentration in the brain significantly compared to the uncoated micelles and the free drug after intravenous injection. The results indicated that polysorbate 80 coated PCEC micelles might be a candidate for PTX delivery for brain tumor chemotherapy.
authors.affiliation: State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China.
authors.forename: Yujun
authors.initials: Y
authors.lastname: Wang
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: ChangYang
authors.initials: C
authors.lastname: Gong
authors.forename: YingJing
authors.initials: Y
authors.lastname: Wang
authors.forename: Gang
authors.initials: G
authors.lastname: Guo
authors.forename: Feng
authors.initials: F
authors.lastname: Luo
authors.forename: ZhiYong
authors.initials: Z
authors.lastname: Qian
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000633:toxicity; D001921:Brain / Q000378:metabolism; D001932:Brain Neoplasms / Q000188:drug therapy; D003692:Delayed-Action Preparations; D004337:Drug Carriers / Q000737:chemistry; D016503:Drug Delivery Systems; D057809:HEK293 Cells; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008823:Micelles; D017239:Paclitaxel / Q000008:administration & dosage* / Q000493:pharmacokinetics / Q000633:toxicity; D010316:Particle Size; D011091:Polyesters / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011136:Polysorbates / Q000737:chemistry; D051381:Rats; D017207:Rats, Sprague-Dawley; D014018:Tissue Distribution; D018675:Toxicity Tests
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D003692:Delayed-Action Preparations; D004337:Drug Carriers; D008823:Micelles; D011091:Polyesters; D011136:Polysorbates; C492324:poly(epsilon-caprolactone)-poly(oxyethylene)-poly(epsilon-caprolactone); D011092:Polyethylene Glycols; D017239:Paclitaxel