Characterization of adenoviral gene expression in spinal cord after remote vector delivery

被引：36

作者：

Boulis, NM ^{[1
]}

Turner, DE ^{[1
]}

Dice, JA ^{[1
]}

Bhatia, V ^{[1
]}

Feldman, EL ^{[1
]}

机构：

[1] Univ Michigan, Dept Neurol, Neurosurg Sect, Ann Arbor, MI USA

来源：

NEUROSURGERY | 1999年 / 45卷 / 01期

关键词：

adenovirus; beta-galactosidase; gene therapy; sciatic nerve; spinal cord;

D O I：

10.1097/00006123-199907000-00029

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

OBJECTIVES: Recent work has established that the remote injection of attenuated adenoviral vectors may result in central nervous system (CNS) gene expression. These studies suggest that virus passes through peripheral nerves into the CNS. The present experiment attempts to characterize this phenomenon systematically. METHODS: Spinal cord cells staining for the reporter gene beta-galactosidase were histologically quantified after microinjection of the viral vector Ad5RSVntLacZ into rat footpad, muscle, or sciatic nerve. The effects of injection location, titer, and time, as well as nerve crush and dexamethasone, were examined. RESULTS: Sciatic nerve viral vector injection results in significantly higher CNS uptake than intramuscular and subcutaneous injections (P < 0.05). Nerve crush injury caused a time-dependent reduction in spinal cord gene uptake after sciatic nerve adenoviral injection (P <: 0.05). Neuronal staining reaches its peak at 6 days after injection (P < 0.002). peripheral nerve delivery to the CNS increases with augmented titers (P < 0.03). Finally, gene expression is augmented by administration of dexamethasone (P < 0.0001). CONCLUSION: Remote adenoviral vector injection represents a potential method for spinal cord gene therapy that avoids any manipulation of CNS tissue.

引用

页码：131 / 137

页数：7

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