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논문 기본 정보

자료유형
학술저널
저자정보
Kwon, Hyog-Young (College of Pharmacy, SungKyunKwan University) Kim, Eun-Hye (College of Pharmacy, SungKyunKwan University) Kim, Seung-Whan (Department of Pharmacology, University of Ulsan College of Medicine) Kim, Su-Nam (KIST Gangneung Institute) Park, Jong-Dae (Ginseng Science Research Group, KT & G Central Research Institute) Rhee, Dong-Kwon (College of Pharmacy, SungKyunKwan University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제31권 제2호
발행연도
2008.1
수록면
171 - 177 (7page)

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Multidrug resistance (MDR) is a major problem in cancer chemotherapy. It was previously reported that a red ginseng saponin, 20(S)-ginsenoside $Rg_3$ could modulate MDR in vitro and extend the survival of mice implanted with ADR-resistant murine leukemia P388 cells. This study examined the cytotoxicity of $Rg_3$ on normal and transformed cells, along with its effect on the membrane fluidity. The cytotoxicity study revealed that 120 ${\mu}M\;of\;Rg_3$ was cytotoxic against a multidrug-resistant human fibroblast carcinoma cell line, KB V20C, but not against normal WI 38 cells in vitro. Flow cytometric analysis using rhodamine 123 as the artificial substrate showed that $Rg_3$ promoted the accumulation of rhodamine 123 in ADR-resistant murine leukemia P388 cells in vivo. Fluorescence polarization studies using the hydrophilic fluorescent probe, DPH, and hydrophobic probe, TMA-DPH, showed that 20 ${\mu}M\; Rg_3$ induced a significant increase in fluorescence anisotropy in KB V20C cells but not in the parental KB cells. These results clearly show that $Rg_3$ decreases the membrane fluidity thereby blocking drug efflux.

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