Effect of Ginseng Saponin on Gap Junction Channel Reconstituted with Connexin 32

  • Hong, Eun-Jung (Department of Biochemistry, Yeungnam University) ;
  • Huh, Keun (Department of Pharmacology, Yeungnam University) ;
  • Rhee, Seung-Keun (Department of Biochemistry, Yeungnam University)
  • Published : 1996.08.01

Abstract

Panax-ginseng saponin has been known to exert various pharmacological effects on cellular metabolism. This study was performed to determine the effect of ginseng saponin on gap junction channel-mediated intercellular communication, using an established in vitro system of reconstituted gap junction channels. Gap junction channels are a specialized plasma membrane fraction, which are permeable to relatively large water-soluble molecules. The sucrose permeable property of reconstituted gap junction channels was completely inhibited with 0.1 % (w/v) of ginseng saponin. We also compared the effect of ginseng saponin with that of Triton X-100, a nonionic detergent, on the same system. Triton X-100 showed significantly different effect on sucrose-permeability of gap junction channel from that was affected by ginseng saponin. The structures of liposomes containing gap junction channels was significantly destroyed by Triton X-100.

Keywords

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