An isoquinoline alkaloid from the Chinese herbal plant Corydalis yanhusuo W.T. Wang inhibits P-glycoprotein and multidrug resistance-associate protein 1

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• 作者：Yu Lei^a ; ¹ ; Juan Tan^b ; ¹ ; Michael Wink^c ; Yonggang Ma^a ; ^{mayonggang@nankai.edu.cn} ; Na Li^a ; Guannan Su^a
• 关键词：Corydalis yanhusuo W.T. Wang ; Glaucine ; Multidrug resistance ; ABC transporters ; P-gp ; MRP1
• 刊名：Food Chemistry
• 出版年：2013
• 出版时间：15 February, 2013
• 年：2013
• 卷：136
• 期：3-4
• 页码：1117-1121
• 全文大小：404 K

文摘

Overexpression of P-glycoprotein (P-gp) and multidrug resistance-associate protein 1 (MRP1) is a major mechanism leading to multidrug resistance (MDR) of cancer cells. These transporters expel anti-cancer drugs and greatly impair therapeutic efficacy of chemotherapy. A Chinese herbal plant Yanhusuo (Corydalis yanhusuo W.T. Wang, YHS) is frequently used in functional food and traditional Chinese medicine to improve the efficacy of chemotherapy. The objective of this work was to study effects of glaucine, an alkaloid component of YHS, on P-gp and MRP1 in resistant cancer cells.

The resistant cancer cell line, MCF-7/ADR and corresponding parental sensitive cells were employed to determine reversal properties of glaucine. Glaucine inhibits P-gp and MRP1-mediated efflux and activates ATPase activities of the transporters, indicating that it is a substrate and inhibits P-gp and MRP1 competitively. Furthermore, glaucine suppresses expression of ABC transporter genes. It reverses the resistance of MCF-7/ADR to adriamycin and mitoxantrone effectively.