Enhanced Doxorubicin Delivery to the Brain Administered Through Glutathione PEGylated Liposomal Doxorubicin (2B3-101) as Compared with Generic Caelyx,®/Doxil®A Cerebral Open Flow Microperfusion Pilot Study

被引：79

作者：

Birngruber, Thomas ^{[1
]}

Raml, Reingard ^{[1
]}

Gladdines, Werner ^{[2
]}

Gatschelhofer, Christina ^{[1
]}

Gander, Edgar ^{[1
]}

Ghosh, Arijit ^{[3
]}

Kroath, Thomas ^{[1
]}

Gaillard, Pieter J. ^{[2
]}

Pieber, Thomas R. ^{[1
,3
]}

Sinner, Frank ^{[1
,3
]}

机构：

[1] Joanneum Res, HLTH Inst Biomed & Hlth Sci, Graz, Austria

[2] To BBB Technol BV, Leiden, Netherlands

[3] Med Univ Graz, Dept Internal Med, Div Endocrinol & Metab, Graz, Austria

来源：

JOURNAL OF PHARMACEUTICAL SCIENCES | 2014年 / 103卷 / 07期

关键词：

cerebral open flow microperfusion; blood brain barrier; cancer; doxorubicin; Caelyx (R); Doxil (R); 2B3-101; liposomes; CNS; drug targeting; SODIUM FLUORESCEIN; EVANS BLUE; HYPERINSULINEMIA; PERMEABILITY; ADIPOSE; INSULIN; TISSUE;

D O I：

10.1002/jps.23994

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

The neuroprotective blood-brain barrier (BBB) keeps many drug candidates below therapeutic levels in the central nervous system. Glutathione PEGylated liposomal doxorubicin (2B3-101) has been developed to safely enhance the delivery of doxorubicin to brain tumors. However, doxorubicin concentration in extracellular brain fluid cannot yet be reliably measured using conventional techniques. Cerebral open flow microperfusion (cOFM), a recently developed sampling technique, allows monitoring of drug concentrations in the brain independent of molecular weight and lipophilicity. In combination with cOFM sampling, sodium fluorescein (NaF) is used as a marker for BBB integrity. Rats received one intravenous dose of 7 mg/kg of either 2B3-101 or PEGylated liposomal doxorubicin (generic Caelyx (R)). Blood and cOFM sampling was performed for 5 h after dose injection. NaF concentration in the brain was monitored and remained low indicating an intact BBB. The brain-to-blood ratio of doxorubicin was 4.8-fold higher after administration of 2B3-101 as compared with generic Caelyx (R) (p = 0.0016). In conclusion, by using cOFM it was possible to show that 2B3-101 leads to enhanced doxorubicin concentration in the brain without affecting the BBB integrity. (c) 2014 Wiley Periodicals, Inc. and the American Pharmacists Association J Pharm Sci 103:1945-1948, 2014

引用

页码：1945 / 1948

页数：4

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