Miniaturized neural system for chronic, local intracerebral drug delivery

被引：80

作者：

Dagdeviren, Canan ^{[1
,2
]}

Ramadi, Khalil B. ^{[1
,3
]}

Joe, Pauline ^{[1
]}

Spencer, Kevin ^{[1
]}

Schwerdt, Helen N. ^{[1
,4
,5
]}

Shimazu, Hideki ^{[4
,5
]}

Delcasso, Sebastien ^{[4
,5
]}

Amemori, Ken-ichi ^{[4
,5
]}

Nunez-Lopez, Carlos ^{[1
]}

Graybiel, Ann M. ^{[4
,5
]}

Cima, Michael J. ^{[1
,6
]}

Langer, Robert ^{[1
,3
]}

机构：

[1] MIT, Koch Inst Integrat Canc Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[2] MIT, Media Lab, Cambridge, MA 02139 USA

[3] MIT, Harvard Mit Div Hlth Sci & Technol, Cambridge, MA 02139 USA

[4] MIT, McGovern Inst Brain Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[5] MIT, Dept Brain & Cognit Sci, E25-618, Cambridge, MA 02139 USA

[6] MIT, Dept Mat Sci, Cambridge, MA 02139 USA

来源：

SCIENCE TRANSLATIONAL MEDICINE | 2018年 / 10卷 / 425期

关键词：

CONVECTION-ENHANCED DELIVERY; DEEP BRAIN-STIMULATION; ANTISENSE OLIGONUCLEOTIDES; CHEMOTHERAPY; VOLUMES;

D O I：

10.1126/scitranslmed.aan2742

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Recent advances in medications for neurodegenerative disorders are expanding opportunities for improving the debilitating symptoms suffered by patients. Existing pharmacologic treatments, however, often rely on systemic drug administration, which result in broad drug distribution and consequent increased risk for toxicity. Given that many key neural circuitries have sub-cubic millimeter volumes and cell-specific characteristics, small-volume drug administration into affected brain areas with minimal diffusion and leakage is essential. We report the development of an implantable, remotely controllable, miniaturized neural drug delivery system permitting dynamic adjustment of therapy with pinpoint spatial accuracy. We demonstrate that this device can chemically modulate local neuronal activity in small (rodent) and large (nonhuman primate) animal models, while simultaneously allowing the recording of neural activity to enable feedback control.

引用

页数：10

共 54 条

[1] SU-8 based microprobes for simultaneous neural depth recording and drug delivery in the brain [J].