Send to

Choose Destination
Cancer Chemother Pharmacol. 2014 Jul;74(1):185-93. doi: 10.1007/s00280-014-2490-0. Epub 2014 May 28.

Irinotecan and temozolomide brain distribution: a focus on ABCB1.

Author information

Clinical Pharmacy Department - EA 4123, College of Pharmacy, Paris-Sud University, 5 rue Jean Baptiste Clement, 92296, Chatenay Malabry, France,


Glioblastoma (GBM), the most common primary brain tumor in adults, is usually rapidly fatal with median survival duration of only 15 months and a 3-year survival rate of <7 %. Temozolomide (TMZ) is the only anticancer drug that has improved survival in GBM when administered with concomitant radiotherapy. Irinotecan (CPT-11) has also shown efficacy in recurrent gliomas monotherapy with moderate response. As the efficacy of GBM treatments relies on their brain distribution through the blood-brain barrier (BBB), the aim of the present work was to study, on an in vivo model, the brain distribution of TMZ, CPT-11 and its active metabolite, SN-38. We have focussed on the role of ABCB1, the main efflux transporter at the BBB level, through pharmacokinetics studies in CF1 mdr1a(+/+) and mdr1a(-/-) mice. Our results show that TMZ, CPT-11 and SN-38 are transported by ABCB1 at the BBB level with brain/plasma ratios of 1.1, 2.1 and 2.3, respectively.

[Indexed for MEDLINE]

Publication type, MeSH terms, Substances

Publication type

MeSH terms


Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center