Abstract
제주긴뿌리동충하초(Cordyceps longissima, CL)와 풍뎅이동충하초(C. scarabaeicola, CS)의 배양액을 이용하여 RAW 264.7 세포 내 세포 독성 및 NO 생성량을 확인하였다. 세포에 CL J106과 CS J94 배양액을 처치한 경우 세포 독성이 나타나지 않았으나 CL J144와 CS J123 배양액은 세포생존율을 4% 이하로 감소시켜 같은 종일지라도 균주에 따라 세포 독성이 있음을 확인하였다. 따라서 NO 생성 억제 실험에는 CL J106과 CS J94를 이용하였으며 두 종 모두 LPS(lipopolysaccharide)가 처리된 RAW 264.7 세포의 NO 생성을 농도 의존적으로 억제하였다. 본 실험결과 동충하초 부산물인 배양액에도 항염증효과에 관여하는 성분이 존재할 것으로 판단되었고 동일한 종일지라도 생리활성측면에서 매우 다른 특성을 나타내는 것을 확인할 수 있었다. During search for novel bioactive materials from natural resources with the potential as health food and alternative medicine, the culture broth of Cordyceps longissima (CL) J106, J144 and C. scarabaeicola (CS) J94, J123 were prepared, and their effect on cytotoxicity and nitric oxide (NO) production in RAW 264.7 cells were investigated. Whereas the culture broth of CL J144 and CS J123 had cytotoxicity in RAW 264.7 cells, that of CL J106 and CS J94 did not. The culture broth of CL J106 and CS J94 suppressed NO production in RAW 264.7 cells activated with lipopolysaccharide (LPS) at a dose-dependent manner. These results suggest that culture broth, a by-product of Cordyceps, may have active compounds with anti-inflammatory effect. In addition, it appears that their biological activity is dependent on the strains in spite of the same species.
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