Imaging the impact of cyclosporin A and dipyridamole on P-glycoprotein (ABCB1) function at the blood-brain barrier: A [11C]-N-desmethyl-loperamide PET study in nonhuman primates

2016 ◽  
Vol 91 ◽  
pp. 98-104 ◽  
Author(s):  
Annelaure Damont ◽  
Sébastien Goutal ◽  
Sylvain Auvity ◽  
Héric Valette ◽  
Bertrand Kuhnast ◽  
...  
2018 ◽  
Vol 59 (10) ◽  
pp. 1609-1615 ◽  
Author(s):  
Sylvain Auvity ◽  
Fabien Caillé ◽  
Solène Marie ◽  
Catriona Wimberley ◽  
Martin Bauer ◽  
...  

2010 ◽  
Vol 122 ◽  
pp. S39-S40
Author(s):  
O.L. de Klerk⁎ ◽  
A.T.M. Willemsen ◽  
F.J. Bosker ◽  
P. Meerlo ◽  
R.A. Dierckx ◽  
...  

2010 ◽  
Vol 39 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Hiroshi Sugimoto ◽  
Hideki Hirabayashi ◽  
Yoshiaki Kimura ◽  
Atsutoshi Furuta ◽  
Nobuyuki Amano ◽  
...  

1993 ◽  
Vol 46 (6) ◽  
pp. 1096-1099 ◽  
Author(s):  
Akira Tsuji ◽  
Ikumi Tamai ◽  
Atsushi Sakata ◽  
Yoshiyuki Tenda ◽  
Tetsuya Terasaki

2005 ◽  
Vol 316 (2) ◽  
pp. 647-653 ◽  
Author(s):  
Young-Joo Lee ◽  
Jun Maeda ◽  
Hiroyuki Kusuhara ◽  
Takashi Okauchi ◽  
Motoki Inaji ◽  
...  

2017 ◽  
Vol 106 (9) ◽  
pp. 2625-2631 ◽  
Author(s):  
Stephanie A. Newman ◽  
Yijun Pan ◽  
Jennifer L. Short ◽  
Joseph A. Nicolazzo

2014 ◽  
Vol 58 (8) ◽  
pp. 4464-4469 ◽  
Author(s):  
Ji-Qin Wu ◽  
Kun Shao ◽  
Xuan Wang ◽  
Rui-Ying Wang ◽  
Ya-Hui Cao ◽  
...  

ABSTRACTAmphotericin B (AMB) has been a mainstay therapy for fungal infections of the central nervous system, but its use has been limited by its poor penetration into the brain, the mechanism of which remains unclear. In this study, we aimed to investigate the role of P-glycoprotein (P-gp) in AMB crossing the blood-brain barrier (BBB). The uptake of AMB by primary brain capillary endothelial cellsin vitrowas significantly enhanced after inhibition of P-gp by verapamil. The impact of two model P-gp inhibitors, verapamil and itraconazole, on brain/plasma ratios of AMB was examined in both uninfected CD-1 mice and those intracerebrally infected withCryptococcus neoformans. In uninfected mice, the brain/plasma ratios of AMB were increased 15 min (3.5 versus 2.0;P< 0.05) and 30 min (5.2 versus 2.8;P< 0.05) after administration of verapamil or 45 min (6.0 versus 3.9;P< 0.05) and 60 min (5.4 versus 3.8;P< 0.05) after itraconazole administration. The increases in brain/plasma ratios were also observed in infected mice treated with AMB and P-gp inhibitors. The brain tissue fungal CFU in infected mice were significantly lower in AMB-plus-itraconazole or verapamil groups than in the untreated group (P< 0.005), but none of the treatments protected the mice from succumbing to the infection. In conclusion, we demonstrated that P-gp inhibitors can enhance the uptake of AMB through the BBB, suggesting that AMB is a P-gp substrate.


1994 ◽  
Vol 48 (10) ◽  
pp. 1989-1992 ◽  
Author(s):  
Atsushi Sakata ◽  
Ikumi Tamai ◽  
Kouichi Kawazu ◽  
Yoshiharu Deguchi ◽  
Toshimasa Ohnishi ◽  
...  

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