Journal
EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 125, Issue -, Pages 64-73Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejps.2018.09.016
Keywords
Porous yolk-shell particle; Tri-needle coaxial electrospray; Pulmonary delivery; Ganoderma lucidum polysaccharide; Lung oxidative stress
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Funding
- National Natural Science Foundation of China [81771960]
- Fundamental Research Funds for the Central Universities [2017QNA5017]
- Key Technologies R&D Program of Zhejiang Province [2015C02035]
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Chronic lung diseases (e.g. chronic obstructive pulmonary disease and asthma) are associated with oxidative stress and common treatments include various types of inhalation therapies. In this work Ganoderma lucidum polysaccharide (GLP), a naturally occurring antioxidant is loaded into porous Poly (epsilon-caprolactone) (PCL) particles using a single step tri-needle coaxial electrospray process (Tri-needle CES); with a view to develop therapies to combat oxidative stress. Based on the core-shell structure of porous yolk shell particles (YSPs), GLP-loaded YSPs displayed a bi-phasic release pattern. In vitro cell studies indicate GLP-loaded porous YSPs display good biocompatibility and positive attributes towards H2O2-induced oxidative stress in MRC-5 cells and dramatically attenuate intracellular reactive oxygen species (ROS) levels as well as significantly increase cell viability. In vivo inhalation studies indicate that GLP-loaded porous YSPs can be delivered to deep lung tissue and remain deposited for over 48 h and are subsequently removed by natural clearance mechanisms. Based on current findings GLP-loaded porous YSPs are suitable for pulmonary delivery and display good inhalation therapy potential to treat chronic lung diseases.
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