학술논문

콜라겐 젤과 성장인자 전처치 및 피복재료가 다공성 안와삽입물의 섬유혈관증식에 미치는 효과
Effect of Collagen Gel with Growth Factor and Wrapping Materials on Fibrovascularization of Porous Orbital Implant
Document Type
Article
Source
대한안과학회지, 46(6), pp.1037-1051 Jun, 2005
Subject
안과학
Language
한국어
ISSN
2092-9374
0378-6471
Abstract
Purpose: To determine the effect of bFGF complexed collagen gel, which allows constant release of bFGF along with biodegradation of the collagen gel. The specific study purpose was to determine whether it can accelerate the fibrovascular ingrowth into wrapped HA-coated porous alumina and to verify the safety of new wrapping materials. Synthetic polyester-urethane (NeuropatchⓇ) and lyophilized bovine pericardium (LyoplantⓇ) were compared to donor sclera for the fibrovascular ingrowth into HA-coated porous alumina. Methods: The experimental and control groups, each consisting of 9 rabbits were wrapped with each wrapping materials (3 rabbits per wrapping material). The experimental group underwent pretreatment of bFGF-collagen gel while the control group did not. The fibrovascular ingrowth was compared at 2 and 4 weeks after implantation. Western blot analysis was conducted at 4 weeks using antibodies against CD141 and laminin. The rate of fibrovascular ingrowth was fastest in orbital implant wrapped with LyoplantⓇ. Results: Histopathologic examinations at 2 weeks showed no differences in distance and percentage area of fibrovascular ingrowth. Histopathologic examinations at 4 weeks showed that pretreatment of bFGF-collagen gel increased the fibrovascular ingrowth in the experimental group. Western blot analysis on experimental group also showed that the expressions of CD141 and laminin were increased by bFGF-collagen gel, thereby indicating that the fibrovascular proliferations were accelerated by bFGF released from the complex. Conclusions: bFGF-collagen gel increased the rate and degree of fibrovascular growth into hydroxyapatite- coated porous alumina by releasing bFGF as the collagen gel biodegraded. Both LyoplantⓇ and NeuropatchⓇ were evaluated as safe for substitution of the donor sclera.
목적 : 피복된 다공성 안와삽입물의 섬유혈관화증식을 촉진키 위해 bFGF과 혼합된 collagen gel과 의 섬유혈관증식 효과를 알아보고 새로운 피복물의 안정성을 확인하고자 하였다. 대상과 방법 : 실험군 9마리, 대조군 9마리 가토를 대상으로 안와삽입물을 기증공막, NeuropatchⓇ, LyoplantⓇ로 피복하여 안와에 삽입후 2주, 4주째 적출하여 조직검사를 시행하고, 4주째 안와삽입물 적출 후 western blot을 시행하였다. 결과 : 삽입 2주 후 조직검사결과 대조군과 실험군간에 섬유혈관증식은 통계학적으로 유의한 차이가 없었으며, 삽입 4주 후 조직검사결과 실험군에서 섬유혈관증식이 통계학적으로 유의하게 증가되어 섬유혈관화가 촉진된 것을 알 수 있었다. Western blot결과로 실험군에서 CD141과 laminin의 발현이 증가된 것과 LyoplantⓇ에서 섬유혈관화증식이 가장 빠른 것을 알 수 있었다. 결론 : Collagen의 용해에 따른 지속적인 bFGF의 분비로 섬유혈관증식이 촉진됨을 알 수 있어 안와삽입물의 빠른 섬유혈관화가 요구되는 경우에 임상적 응용이 가능할 것으로 생각되며, LyoplantⓇ와 NeuropatchⓇ는 기증공막을 대체 할 수 있는 새로운 피복재료로 사용이 가능할 것으로 생각된다.