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Radioevaluation of PAMs, CMs, and PS‐Lip as an oral carrier for vaccine delivery into intestinal Peyer's patches
Author(s) -
Lee ChangMoon,
Heo YoungJun,
Song HoChun,
Bom HeeSeung,
Lee HyunChul,
Jeong HwanJeong,
Lee KiYoung
Publication year - 2006
Publication title -
drug development research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.582
H-Index - 60
eISSN - 1098-2299
pISSN - 0272-4391
DOI - 10.1002/ddr.20155
Subject(s) - pullulan , drug delivery , delivery system , liposome , pharmacology , chemistry , oral administration , oral route , medicine , biochemistry , polysaccharide , organic chemistry
The aim of the present study was to evaluate the utility of pullulan acetate microparticles (PAMs), chitosan micropaticles (CMs), and dipalmitoylphosphatidyl‐serine‐liposomes (PS‐Lip) as oral carriers for delivery to the intestinal Peyer's patches (PPs). To monitor PP delivery after oral administration, PAMs, CMs, and PS‐Lip were radiolabeled with 99m Tc. Radiolabeling efficiencies of the particles were 95±2.5% (PAMs), 87±4.3% (CMs), and 77.2±5.8% (PS‐Lip). In delivery studies to the PPs, the percentage of PS‐Lip taken up to the PPs was 3.8 × 10 −3 ±0.3% of the administered dose with PS‐Lip group showed significantly high uptake compared to the PAM and CM groups. These results suggest that PS‐Lip may be used as a potential system for developing an oral delivery carrier. Drug Dev. Res. 67:884–889, 2006. © 2007 Wiley‐Liss, Inc.