Effect of Butanol Fraction of Mylabris phalerata on Induction of Apoptosis in U937 cells

반묘 BuOH층의 U937 세포주에 대한 apoptosis유도 효과

  • 허정은 (경희대학교 동서의학대학원) ;
  • 윤택준 (경희대학교 동서의학대학원) ;
  • 이종수 (대웅제약연구소) ;
  • 정진홍 (대전대학교 한의과대학) ;
  • 김성훈 (경희대학교 동서의학대학원)
  • Published : 2001.10.01

Abstract

Mylabris phalerata(MP) is an insect that has been used for the treatment of cancer in oriental medicine. To evaluate the anticancer activity of Mylabris phalerata, We measured the cytotoxicity of Mylabris phalerata solvent fractions such as MC, EA, BuOH and residual layers on U937, human monocytic leukemia cells. Of those fractions BuOH layer of Mylabris phalerata was the most effective with ID$_{50}$ of 140$\mu\textrm{g}$/ml. It effectively caused DNA fragmentation from the concentration of 50$\mu\textrm{g}$/ml, showed apoptotic nucleus by tenets assay and expressed apototic portion stained by Annexin-V. It also induced the activation of caspase-3 and cleavage of the substrate poly (ADP-ribose) polymerase (PARP). These results suggest BuOH layer of Mylabris phalerata exerts anticancer activity by induction of apoptosis via activation of caspase-3 protease.e.

Keywords

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