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  • Hyaluronic acid-tumor necrosis factor-related apoptosis-inducing ligand conjugate for targeted treatment of liver fibrosis.

Hyaluronic acid-tumor necrosis factor-related apoptosis-inducing ligand conjugate for targeted treatment of liver fibrosis.

Acta biomaterialia (2014-10-12)
Jeong-A Yang, Won Ho Kong, Dong Kyung Sung, Hyemin Kim, Tae Hyung Kim, Kang Choon Lee, Sei Kwang Hahn
ABSTRACT

Liver fibrosis is a chronic liver disease caused by viral infection and/or metabolic, genetic and cholestatic disorders. The inhibition of hepatic stellate cell (HSC) activation and the selective apoptosis of activated HSCs can be a good strategy to treat liver fibrosis. The activated HSCs are known to be more susceptible to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) induced apoptosis than normal HSCs because death receptor 5 is overexpressed on the cell surface. In this work, a target-specific and long-acting hyaluronic acid (HA)-TRAIL conjugate was successfully developed for the treatment of liver fibrosis. The HA-TRAIL conjugate was synthesized by a coupling reaction between aldehyde-modified HA and the N-terminal amine group of TRAIL. The biological activity of the HA-TRAIL conjugate was confirmed by an in vitro anti-proliferation assay and caspase-3 expression in human colon cancer HCT116 cells. In vivo real-time bioimaging exhibited the target-specific delivery of near-infrared fluorescence dye-labeled HA-TRAIL conjugate to the liver in mice. According to pharmacokinetic analysis, the HA-TRAIL conjugate was detected for more than 4days after single intravenous injection into Sprague-Dawley (SD) rats. Finally, we could confirm the antifibrotic effect of HA-TRAIL conjugate in an N-nitrosodimethylamine-induced liver fibrosis model SD rats.

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