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EYE ON CHINA
SIMM explores a novel cationic core-shell lipo-nanoparticles for ocular gene drug delivery
Ocular diseases are usually treated with a topical application of drug solutions (i.e. eye drops). These traditional dosage forms account for nearly 90% of currently available marketed formulations. However, ocular physiological barriers and the poor water solubility of drug candidates present a number of problems for the development of ocular drug delivery systems.

Recently, various ophthalmic drug delivery strategies aim at improving the bioavailability of poor soluble ocular drugs have emerged. Among them, lipid-based nanocarriers exhibit a variety of potential advantages as delivery systems for ocular administration. New technological advances and unmet clinical needs provide a key driving force for the research and development of lipid-based nanocarriers for ocular drug delivery.

A novel ocular gene drug delivery system by utilizing cationic core-shell liponanoparticles (DLCS-NP) has been published on Biomaterials. Researchers led by Dr. Gan Yong from the Shanghai Institute of Materia Medica designed the DLCS-NP by hydration of thin lipid film with chitosan nanoparticle (CS-NP) suspension, followed by post-insertion of the cationic phospholipid DOTAP (1,2-dioleoyl-3- trimethylammonium-propane). This specific delivery strategy has multiple functions, including better DNA protecting effect, good cellular uptake efficiency, utilization of multiple endocytic pathways, and endolysosome escaping ability.

The study was supported by the Natural Sciences Foundation of Shanghai China and the National Natural Sciences Foundation of China, and partially supported by National Science & Technology's Major Project — “Key New Drug Creation and Manufacturing Program”, and the National Basic Research Program of China.

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APBN Editorial Calendar 2017
January:
Healthcare Focus: LUNGS
February:
War on CANCER
March:
Get to Know TCM
April:
Diabetes: The Big Picture
May:
The Piece of Your Mind - Brain Health/Science
June:
Advocacies in Support of Rare Disease Patients
July:
Food Science & Technology
August:
Eye – the Window to your Soul
September:
Emerging Infectious Diseases
October:
No. 1 Killer — Heart Diseases
November:
Diseases threatening our Children
December:
Skin Diseases/Allergic Reactions
Editorial calendar is subjected to changes.
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