title: Lipid based nanoemulsifying resveratrol for improved physicochemical characteristics, in vitro cytotoxicity and in vivo antiangiogenic efficacy.
abstract: Resveratrol, a dietary non-flavonoid polyphenolic phytoalexin, has gained attention in cancer chemoprevention. However, poor aqueous solubility and cellular bioavailability has limited its therapeutic application. We formulated a lipid based delivery system of resveratrol with self nanoemulsifying ability. Several edible and safe lipids, surfactants and cosolvents were screened for solubilization of resevratrol. Developed formulation comprised of Acrysol K 150 as a lipid and mixture of Labrasol and Transcutol HP as the surfactant system, as these components showed higher solubility. Pseudoternary phase diagram was constructed to identify the region of nanoemulsification. The formulations showed rapid emulsification with an average globule diameter; 85nm to 120nm and slight negative zeta potential. The nanocompositions exhibited cloud point above 55°C and were stable toward the gastrointestinal pH and thermodynamic stress testing. As compared to pristine resveratrol, the developed delivery system showed significant increase in vitro cytotoxicity in MCF-7 breast cancer cells. In vivo chick chorioallantoic membrane assay revealed enhanced antiangiogenic activity of composition with high lipid level. Briefly, lipid based nanoemulsifying resveratrol dramatically enhanced the anticancer and antiangiogenic activities, thus increasing its potential application in cancer chemotherapy.
authors.affiliation: Dept. of Pharmaceutics, STES's Sinhgad Institute of Pharmacy, Pune, India. Electronic address: swatipund@gmail.com.
authors.forename: Swati
authors.initials: S
authors.lastname: Pund
authors.affiliation: Dept. of Pharmaceutics, STES's Sinhgad Institute of Pharmacy, Pune, India.
authors.forename: Rohit
authors.initials: R
authors.lastname: Thakur
authors.affiliation: Dept. of Pharmaceutics, STES's Sinhgad Institute of Pharmacy, Pune, India.
authors.forename: Umesh
authors.initials: U
authors.lastname: More
authors.affiliation: Dept. of Pharmaceutics, B. V. Patel PERD Centre, Ahmedabad, India.
authors.forename: Amita
authors.initials: A
authors.lastname: Joshi
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry; D020533:Angiogenesis Inhibitors / Q000494:pharmacology*; D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology; D016923:Cell Death / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D055598:Chemical Phenomena / Q000187:drug effects*; D002645:Chickens; D049033:Chorioallantoic Membrane / Q000187:drug effects; D016503:Drug Delivery Systems; D004655:Emulsions; D005026:Ethylene Glycols / Q000737:chemistry; D005989:Glycerides; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008055:Lipids / Q000737:chemistry*; D061986:MCF-7 Cells; D017616:Magnesium Compounds / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry; D010316:Particle Size; D044367:Phase Transition / Q000187:drug effects; D000077185:Resveratrol; D017640:Silicates / Q000737:chemistry; D012995:Solubility; D055672:Static Electricity; D013267:Stilbenes / Q000494:pharmacology*; D013816:Thermodynamics
chemical_list: D017607:Aluminum Compounds; D020533:Angiogenesis Inhibitors; D000970:Antineoplastic Agents; D004655:Emulsions; D005026:Ethylene Glycols; D005989:Glycerides; D008055:Lipids; D017616:Magnesium Compounds; D009930:Organic Chemicals; D017640:Silicates; D013267:Stilbenes; C440220:Labrasol; C033065:aluminum magnesium silicate; C010111:carbitol; D000077185:Resveratrol
keywords: Antiangiogenic; Cytotoxicity; Nanoemulsion; Resveratrol; Solubility