Stability and bioactivity of nanocomplex of TNF-related apoptosis-inducing ligand

Seong Ju Na, Su Young Chae, Seulki Lee, Kyeongsoon Park, Kwangmeyung Kim, Jae Hyung Park, Ick Chan Kwon, Seo Young Jeong, Kang Choon Lee

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


The tumor necrosis factor-related apoptosis inducing ligand (TRAIL) has gained much attention due to its potent therapeutic effect for cancer and rheumatoid arthritis. In this study, we attempted to develop the injectable formulations which can stabilize TRAIL and thus show prolonged blood circulation in vivo. The positively charged TRAIL was mixed with hyaluronic acid (HA), resulting in the formation of nanocomplexes. The zeta-potentials of nanocomplexes and their mean diameters were significantly dependent on the feed ratio of HA to TRAIL. The increase in the feed ratio of HA reduced the particle size and decreased the value of the zeta-potential. The bioactivity of TRAIL in the complexes was comparable to that of native TRAIL, indicating that the complex formation did not affect the activity of TRAIL. Furthermore, the stability of TRAIL in the complexes was retained for 6 days, during which the bioactivity of native TRAIL disappeared. When native TRAIL was subcutaneously injected into the rats, its plasma concentration was not detectable after 12 h. In contrast, for HA/TRAIL nanocomplexes in 1% HA solution, substantial amount of TRAIL was circulated in blood for up to 5 days. These results imply that HA-based formulations of TRAIL hold the potential as the therapeutics.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalInternational Journal of Pharmaceutics
Issue number1-2
StatePublished - 3 Nov 2008

Bibliographical note

Funding Information:
This work was supported by the Ministry of Science and Technology (F104AA01000707A010100711), the Ministry of Health and Welfare (A062254B8150506N11C011B), the BioImaging Research Center at GIST, and the Seoul R&DB program in Korea.


  • Hyaluronic acid
  • Nanocomplex
  • Protein stability


Dive into the research topics of 'Stability and bioactivity of nanocomplex of TNF-related apoptosis-inducing ligand'. Together they form a unique fingerprint.

Cite this