P-Glycoprotein, not BCRP, Limits the Brain Uptake of [18F]Mefway in Rodent Brain

  • Jae Yong Choi
  • , Jin Sook Song
  • , Minkyung Lee
  • , Woon Ki Cho
  • , Jin Chung
  • , Chul Hyoung Lyoo
  • , Chul Hoon Kim
  • , Jiae Park
  • , Kyo Chul Lee
  • , Kyeong Min Kim
  • , Jee Hae Kang
  • , Myung Ae Bae
  • , Young Hoon Ryu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Purpose: The aim of this study was to determine whether the brain uptake of [18F]Mefway is influenced by the action of P-glycoprotein (P-gp) and breast cancer resistance protein (Bcrp) in rodents. Procedures: [18F]Mefway was applied to rats pharmacologically inhibited with tariquidar (TQD) and to genetically disrupted mice. Results: Pretreatment of TQD results in 160 % higher hippocampal uptake compared with control rats. In genetically disrupted mice, a maximal brain uptake value of 3.2 SUV in the triple knockout mice (tKO, Mdr1a/b(−/−)Bcrp1(−/−)) was comparable to that of the double knockout mice (dKO, Mdr1a/b(−/−)) and 2-fold those of the wild-type and Bcrp1(−/−) knockout mice. The differences of binding values were statistically insignificant between control and experimental groups. The brain-to-plasma ratios for tKO mice were also two to five times higher than those for other groups. Conclusions: [18F]Mefway is modulated by P-gp, and not by Bcrp in rodents.

Original languageEnglish
Pages (from-to)267-273
Number of pages7
JournalMolecular Imaging and Biology
Volume18
Issue number2
DOIs
StatePublished - 1 Apr 2016

Bibliographical note

Funding Information:
This research was supported by the Nuclear R&D Program of the National Research Foundation of Korea (Grant No. NRF-2015M2A2A7027110).

Publisher Copyright:
© 2015, World Molecular Imaging Society.

Keywords

  • Breast cancer resistance protein
  • P-glycoprotein
  • PET
  • [F]Mefway

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