Structure-Activity Relationships for Interaction with Multidrug Resistance Protein 2 (ABCC2/MRP2): The Role of Torsion Angle for a Series of Biphenyl-Substituted Heterocycles

2007 ◽  
Vol 35 (6) ◽  
pp. 937-945 ◽  
Author(s):  
Yurong Lai ◽  
Li Xing ◽  
Gennadiy I. Poda ◽  
Yiding Hu
2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
Helen H. W. Chen ◽  
Macus Tien Kuo

Three mechanisms have been proposed for the role of glutathione (GSH) in regulating cisplatin (CDDP) sensitivities that affects its ultimate cell-killing ability: (i) GSH may serve as a cofactor in facilitating multidrug resistance protein 2- (MRP2-) mediated CDDP efflux in mammalian cells, since MRP2-transfected cells were shown to confer CDDP resistance; (ii) GSH may serve as a redox-regulating cytoprotector based on the observations that many CDDP-resistant cells overexpress GSH and γ-glutamylcysteine synthesis (γ-GCS), the rate-limiting enzyme for GSH biosynthesis; (iii) GSH may function as a copper (Cu) chelator. Elevated GSH expression depletes the cellular bioavailable Cu pool, resulting in upregulation of the high-affinity Cu transporter (hCtr1) which is also a CDDP transporter. This has been demonstrated that overexpression of GSH by transfection with γ-GCS conferred sensitization to CDDP toxicity. This review describes how these three models were developed and critically reviews their importance to overall CDDP cytotoxicity in cancer cell treatments.


2011 ◽  
Vol 34 (3) ◽  
pp. 433-435 ◽  
Author(s):  
Yoshihiko Shibayama ◽  
Kou Nakano ◽  
Hiroshi Maeda ◽  
Miyuki Taguchi ◽  
Ryuji Ikeda ◽  
...  

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