Journal
MOLECULAR PHARMACEUTICS
Volume 7, Issue 1, Pages 86-93Publisher
AMER CHEMICAL SOC
DOI: 10.1021/mp900138a
Keywords
Nanoparticle; curcumin; cystic fibrosis; PLGA; nasal potential difference
Funding
- NIH [RO1-EB00487, R01-DK053428, AI-066-738, DK072612]
- CFF [EGAN04G0]
- NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES [U19AI066738] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [R01EB000487] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES [R01DK053428] Funding Source: NIH RePORTER
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Cystic fibrosis (CF) is a common life threatening genetic disease (incidence: similar to 1 in 2500 live births). CF is caused by mutations in CFTR, a chloride channel involved in epithelial secretion of fluid and electrolytes. The most common mutation entails the deletion of a phenylalanine in position 508 that causes protein misfolding and abnormal CFTR processing. The Delta F508 mutation accounts for approximately 70% of all CF alleles, and about 90% of CF patients carry at least one copy of Delta F508 CFTR. Curcumin, a natural constituent of Curcuma longa (turmeric spice), is a nontoxic low-affinity SERCA (sarco (endo)plasmic reticulum calcium ATPase) pump inhibitor thought to permit Delta F508 CFTR escape from the ER. The compound has been shown to be capable of correcting the defect in cell lines and mice expressing Delta F508 CFTR. In this work, poly lactic-co-glycolic acid (PLGA) nanoparticles encapsulating curcumin were synthesized and used to treat two different CF mouse strains in an effort to correct the defects associated with CF by improving bioavailability of the compound, which has previously been a challenge in treatment with curcumin. Our results suggest that oral administration of PLGA nanoparticles encapsulating curcumin enhances the effects of curcumin therapy in CF mice, as compared to delivery of nonencapsulated curcumin.
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