Abstract:
:Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has received considerable attention as a potential anticancer agent. However, recombinant Apo2L/TRAIL has several limitations, which include a weak pharmacokinetic profile, namely, a short biological half-life and rapid renal clearance, and an inability to form a homotrimeric structure. In this research, we attempted to develop a sustained release nanoparticle (NP) formulation that stabilizes Apo2L/TRAIL and preserves its antitumor activity. Apo2L/TRAIL-loaded human serum albumin (HSA) NPs were prepared using a desolvation technique optimized by particle size, zeta-potential, and entrapment efficiency. Apo2L/TRAIL in HSA-NPs continuously released over 24 h at 37°C in phosphate buffered saline and rat plasma condition, and the biological activity of Apo2L/TRAIL-HSA-NPs was preserved (IC(50) = 67.2 ng/mL versus Apo2L/TRAIL IC(50) = 55.4 ng/mL) with negligible activity loss. Furthermore, in vivo pharmacokinetic profiles and tumor distribution demonstrated the superiority of Apo2L/TRAIL-HSA-NPs over Apo2L/TRAIL. The circulating half-life period was significantly prolonged from 9.8 to 90.7 min (9.2-fold enhancement), and drug bioavailability was clearly enhanced on the basis of area under the curve analysis (2.7-fold). And tumor distribution of Apo2L/TRAIL-HSA-NPs was also increased at 1 h after injection, which was about 14-fold (1-h point) over that of Apo2L/TRAIL. These results show that Apo2L/TRAIL-loaded HSA-NPs should be considered as potential long-acting cancer agents.
journal_name
J Pharm Scijournal_title
Journal of pharmaceutical sciencesauthors
Kim TH,Jiang HH,Youn YS,Park CW,Lim SM,Jin CH,Tak KK,Lee HS,Lee KCdoi
10.1002/jps.22298subject
Has Abstractpub_date
2011-02-01 00:00:00pages
482-91issue
2eissn
0022-3549issn
1520-6017pii
S0022-3549(15)32299-1journal_volume
100pub_type
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