title: Development and Characterization of Lecithin-based Self-assembling Mixed Polymeric Micellar (saMPMs) Drug Delivery Systems for Curcumin.
abstract: Self-assembling mixed polymeric micelles (saMPMs) were developed for overcoming major obstacles of poor bioavailability (BA) associated with curcumin delivery. Lecithin added was functioned to enlarge the hydrophobic core of MPMs providing greater solubilization capacity. Amphiphilic polymers (sodium deoxycholate [NaDOC], TPGS, CREMOPHOR, or a PLURONIC series) were examined for potentially self-assembling to form MPMs (saMPMs) with the addition of lecithin. Particle size, size distribution, encapsulation efficacy (E.E.), and drug loading (D.L.) of the mixed micelles were optimally studied for their influences on the physical stability and release of encapsulated drugs. Overall, curcumin:lecithin:NaDOC and curcumin:lecithin:PLURONIC P123 in ratios of 2:1:5 and 5:2:20, respectively, were optimally obtained with a particle size of < 200 nm, an E.E. of >80%, and a D.L. of >10%. The formulated system efficiently stabilized curcumin in phosphate-buffered saline (PBS) at room temperature or 4 °C and in fetal bovine serum or PBS at 37 °C and delayed the in vitro curcumin release. In vivo results further demonstrated that the slow release of curcumin from micelles and prolonged duration increased the curcumin BA followed oral and intravenous administrations in rats. Thus, lecithin-based saMPMs represent an effective curcumin delivery system, and enhancing BA of curcumin can enable its wide applications for treating human disorders.
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
authors.forename: Ling-Chun
authors.initials: LC
authors.lastname: Chen
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
authors.forename: Yin-Chen
authors.initials: YC
authors.lastname: Chen
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
authors.forename: Chia-Yu
authors.initials: CY
authors.lastname: Su
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
authors.forename: Wan-Ping
authors.initials: WP
authors.lastname: Wong
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.|Clinical Research Center and Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, Taiwan.
authors.forename: Ming-Thau
authors.initials: MT
authors.lastname: Sheu
authors.affiliation: School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
authors.forename: Hsiu-O
authors.initials: HO
authors.lastname: Ho
mesh_terms: D000284:Administration, Oral; D000818:Animals; D003474:Curcumin / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology; D016503:Drug Delivery Systems / Q000379:methods*; D054709:Lecithins / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology; D008297:Male; D008823:Micelles; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D054709:Lecithins; D008823:Micelles; D003474:Curcumin