Abstract
For developing aqueous formulation and improving anti-tumor activity of curcumin (Cur), we prepared Cur encapsulated MPEG-PCL micelles by solid dispersion method without using any surfactants or toxic organic solvent. Cur micelles could be lyophilized into powder form without any cryoprotector or excipient, and the re-dissolved Cur micelles are homogenous and stable. Molecular modeling study suggested that Cur tended to interact with PCL serving as a core embraced by PEG as a shell. After Cur was encapsulated into polymeric micelles, cytotoxicity and cellular uptake were both increased. Cur micelles had a stronger inhibitory effect on proliferation, migration, invasion, and tube formation of HUVECs than free Cur. Besides, Cur micelles showed a sustained in vitro release behavior and slow extravasation from blood vessels in transgenic zebrafish model. Embryonic angiogenesis and tumor-induced angiogenesis were both dramatically inhibited by Cur micelles in transgenic zebrafish model. Furthermore, Cur micelles were more effective in inhibiting tumor growth and prolonged survival in both subcutaneous and pulmonary metastatic LL/2 tumor models. In pharmacokinetic and tissue distribution studies, Cur micelles showed higher concentration and longer retention time in plasma and tumors. Our findings suggested that Cur micelles may have promising applications in pulmonary carcinoma therapy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
