Abstract:
:Brain capillary endothelial cells (BCECs) play an important role in blood-brain barrier (BBB) functions and pathophysiologic mechanisms in brain ischemia and inflammation. We try to suppress gene expression in BCECs by intravenous application of small interfering RNA (siRNA). After injection of large dose siRNA with hydrodynamic technique to mouse, suppression of endogenous protein and the BBB function of BCECs was investigated. The brain-to-blood transport function of organic anion transporter 3 (OAT3) that expressed in BCECs was evaluated by Brain Efflux Index method in mouse. The siRNA could be delivered to BCECs and efficiently inhibited endogenously expressed protein of BCECs. The suppression effect of siRNA to OAT3 is enough to reduce the brain-to-blood transport of OAT3 substrate, benzylpenicillin at BBB. The in vivo siRNA-silencing method with hydrodynamic technique may be useful for the study of BBB function and gene therapy targeting BCECs.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Hino T,Yokota T,Ito S,Nishina K,Kang YS,Mori S,Hori S,Kanda T,Terasaki T,Mizusawa Hdoi
10.1016/j.bbrc.2005.11.173subject
Has Abstractpub_date
2006-02-03 00:00:00pages
263-7issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)02724-5journal_volume
340pub_type
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