Korean J Vet Res.
2018 Dec;58(4):183-192. 10.14405/kjvr.2018.58.4.183.
Long-circulating and target-specific distributions of cyanine 5.5-labeled hyaluronic acid nanoparticles in mouse organs during 28 days after a single administration
- Affiliations
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- 1College of Veterinary Medicine and Veterinary Medical Center, Chungbuk National University, Cheongju 28644, Korea. synam@cbu.ac.kr
- 2College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130-118, China.
- 3Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul 05505, Korea.
- 4College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea.
- KMID: 2437693
- DOI: http://doi.org/10.14405/kjvr.2018.58.4.183
Abstract
- Although hyaluronic acid (HA) has been developed as a nanoparticle (NP; 320-400 nm) for a drug delivery system, the tissue targeting efficacy and the pharmacokinetics of HA-NPs are not yet fully understood. After a dose of 5 mg/kg of cyanine 5.5-labeled HA-NPs or HA-polymers was intravenously administrated into mice, the fluorescence was measured from 0.5 h to 28 days. The HA-NPs fluorescence was generally stronger than that of HA-polymers, which was maintained at a high level over 7 days in vivo, after which it gradually decreased. Upon ex vivo imaging, liver, spleen, kidney, lung, testis and sublingual gland fluorescences were much higher than that of other organs. The fluorescence of HA-NPs in the liver, spleen and kidney was highest at 30 min, where it was generally maintained until 4 h, while it drastically decreased at 1 day. However, the fluorescence in the liver and spleen increased sharply at 7 days relative to 3 days, then decreased drastically at 14 days. Conversely, the fluorescence of HA-polymers in the lymph node was higher than that of HA-NPs. The results presented herein may have important clinical implications regarding the safety of as self-assembled HA-NPs, which can be widely used in biomedical applications.
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