In vivo biocompatibilty and degradation behavior of elastic poly(L-lactide-co-epsilon-caprolactone) scaffolds.
Tubular scaffolds were fabricated from very elastic poly(L-lactide-co-epsilon-caprolactone) (PLCL, 50:50). The scaffolds were seeded with smooth muscle cells (SMCs) and implanted in nude mice to investigate the tissue compatibility and in vivo degradation behavior. Histological examination of all the implants with haematoxylin and eosin staining, masson trichrome staining, SM alpha-actin antibody, and CM-DiI labeling confirmed that the regular morphology and biofunction of the SMCs seeded and the expression of the vascular smooth muscle matrices in PLCL scaffolds. The implanted PLCL scaffolds displayed a slow degradation on time, where caprolactone units were faster degraded than lactide did. This could be explained by the fact that amorphous regions composed of mainly CL moieties degraded earlier than hard domains where most of the LA units were located. From these results, the scaffolds applied in this study were found to exhibit excellent tissue compatibility to SMCs and might be very useful for vascular tissue engineering.
Jeong
Sung In
SI
School of Chemical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea.
Kim
Byung-Soo
BS
Kang
Sun Woong
SW
Kwon
Jae Hyun
JH
Lee
Young Moo
YM
Kim
Soo Hyun
SH
Kim
Young Ha
YH
D000818:Animals; D001672:Biocompatible Materials; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D008819:Mice, Nude; D011091:Polyesters / Q000737:chemistry*
D001672:Biocompatible Materials; D011091:Polyesters; C062968:lactide-caprolactone copolymer