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케라틴을 함유한 PLGA 지지체가 슈반세포의 증식 및 특성 유지에 미치는 영향
오아영 ( A Young Oh ),김순희 ( Soon Hee Kim ),정수현 ( Su Hyun Jung ),홍현혜 ( Hyun Hye Hong ),전나리 ( Na Ri Jeon ),( Sang Jin Lee ),( Mark Van Dyke ),( James J. Yoo ),이종문 ( John M. Rhee ),강길선 ( Gilson Khang ) 한국조직공학·재생의학회 2008 조직공학과 재생의학 Vol.5 No.4
Keratin is the major structural fibrous protein such as wool, hair, and nail and is useful as natural protein. Schwann cells(SCs) can stimulate tissue sparing and enhance outgrowth of both intact and lesion axons. We were prepared keratin/PLGA(0, 20 and 50 wt%) scaffolds by solvent casting/salt leaching method. Cellular viability and proliferation were assayed by MTT test. Morphology of cellular adhesion were confirmed by scanning electron microscope(SEM). SCs specific protein was assessed staining by s-100 for SCs marker and RT-PCR was conducted to confirm mRNA expression of NF, P-75 and s-100 for SCs marker. In MTT assay results, cell viability in scaffolds impregnated 20 wt% of keratin were higher than other scaffolds. SEM exhibited normal spindle-shaped morphology on 20 wt% of keratin. SC specific mRNA expression and protein could not be observed in scaffold containing 50 wt% of keratin. These results suggest that keratin provide suitable surface to neural cells and proper content affect on culture condition to improve cell adhesion and proliferation.