Immune parameters affecting adenoviral vector gene therapy in the brain.

Immune parameters affecting adenoviral vector gene therapy in the brain.
复制标题

影响大脑腺病毒载体基因治疗的免疫参数。

DOI:
10.3109/13550289809114519
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发表时间:
1998
影响因子:
3.2
通讯作者:
H. Fine
H. Fine
中科院分区:
医学4区
文献类型:
--
作者:
M. Parr;P. Wen;M. Schaub;S. Khoury;M. Sayegh;H. Fine

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利用复制缺陷型腺病毒载体的基因治疗代表了治疗脑肿瘤的潜在有前途的方法。继发于有效的抗载体免疫应答的重复系统性载体施用后系统性转基因表达的有限持续时间和低效的转导限制了第一代腺病毒载体的潜在应用。宿主免疫反应是否会显着限制这些载体在中枢神经系统免疫保护环境中的使用仍有待阐明。在单次静脉内注射表达β-半乳糖苷酶的腺病毒载体(Ad. CMV-β 1)后,我们在第4天发现全身部位(即肝脏)中的β 1转基因表达最大,到第7天几乎完全消失。相比之下,显著的β-半乳糖苷酶活性被视为大于28天后,一个单一的脑内接种病毒。再激发实验证明了对重复全身载体给药的完全保护,而脑内转基因表达不受先前全身或脑内暴露于腺病毒的影响。这些数据表明,全身性抗腺病毒载体免疫应答在中枢神经系统内减弱,并且对于脑肿瘤的治疗可能不会像其他全身适应症那样造成显著的问题。
Gene therapy utilizing replication deficient adenoviral vectors represents a potentially promising approach to the treatment of brain tumors. Limited duration of systemic transgene expression and inefficient transduction following repeat systemic vector administration secondary to an effective anti-vector immune response limits the potential application of first generation adenoviral vectors. Whether host immune responses will significantly limit the use of these vectors within the immunopriviledged environment of the central nervous system remains to be elucidated. Following a single intravenous injection of a beta-galactosidase expressing adenoviral vector (Ad.CMV-betagal), we found maximal betagal transgene expression in systemic sites (i.e. liver) at day 4, with almost complete disappearance by day 7. In contrast, significant beta-galactosidase activity was seen for greater than 28 days following a single intracerebral inoculum of virus. Rechallenge experiments demonstrated complete protection against repeat systemic vector administration, whereas intracerebral transgene expression was not affected by prior systemic or intracerebral exposure to adenoviruses. These data suggest that systemic anti-adenoviral vector immune responses are attenuated within the central nervous system and may not pose as significant a problem for the treatment of brain tumors as for other systemic indications.
DOI: 10.1089/hum.1997.8.1-37
发表时间: 1997-01-01
期刊: HUMAN GENE THERAPY
影响因子: 4.2
作者:
Worgall, S;Wolff, G;Crystal, RG
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发表时间: 1994-05-10
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DOI: --
发表时间: 1995
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
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DOI: 10.1016/0042-6822(91)90815-s
发表时间: 1991
期刊: Virology
影响因子: 3.7
作者:
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通讯作者: Gooding,LR