How cyclodextrins can mask their toxic effect on the blood-brain barrier.
The toxicity of monosubstituted n-alkyldimethylammonium-beta-cyclodextrins (DMA-C(n)-CD with n=2, 4 and 12) towards endothelial cells of an in vitro model of the blood-brain barrier (BBB) was evaluated and compared to that of the native beta-CD. DMA-C(12)-CD was found to be non-toxic below 10mM due to the self-inclusion of the alkyl chain in the CD cavity. A high percentage of passage (30%) of DMA-C(12)-CD through the endothelial cells has been measured.
Binkowski-Machut
Cécile
C
Laboratoire de Physico-Chimie des Interfaces et Applications, FRE CNRS 2485, Faculté des Sciences Jean Perrin, Université d'Artois, rue Jean Souvraz, SP.18-62307 Lens Cédex, France.
Hapiot
Frédéric
F
Martin
Patrick
P
Cecchelli
Roméo
R
Monflier
Eric
E
D001812:Blood-Brain Barrier / Q000187:drug effects*; D003505:Cyclodextrins / Q000633:toxicity*
D003505:Cyclodextrins